• COM2: Analysis & design

    COM2: Analysis & design

  • COM2: Analysis & design

    COM2: Analysis & design

Motivation

Analysis and design are understood as core tasks of structural engineering. In this field, nine areas of interest have been identified; hence, nine task groups form the basis of the new structure of Commission 2. Today, the analysis – i.e. the detailed investigation of the stress and strain state – has gained in importance, and consequently refined and physically based models and calculation procedures are required. On the other hand, the design of new structures (comprising conception, dimensioning and detailing) still is fundamental for practicing engineers. In general, the respective approaches should be one and the same for the two levels of detail, but more practical and easier to apply for the latter case. Commission 2 supports and follows this line of development of structural engineering.

Scope and objective of technical work

The scope of Commission 2 is to develop models and calculation procedures for the analysis and design of structures and structural members under short term and long term static loading as well as under fatigue, fire and extreme events. Serviceability limit states and ultimate limit states as well as their interaction are considered, and both research results and recommendations for the practical application shall be presented. In the near future the activity of COM2 will focus on new and also on existing structures in order to support the development of the new fib Model Code 2020.

 

Jan VitekCommission Chair
Jan Vitek
Oguzhan BayrakDeputy Chair
Oguzhan Bayrak

First name Last name Country Affiliation
György L. Balázs Hungary Budapest Univ. of Techn. & Economics
Giuseppe Mancini Italy Politecnico Torino
Maria Rosaria Pecce Italy University of Naples Federico II
Joost Walraven Netherlands Delft University of Technology
Mikael Braestrup Denmark Rambøll
Oguzhan Bayrak United States Univ. of Texas at Austin
Manfred Curbach Germany Technische Univ. Dresden
Giovanni Plizzari Italy University of Brescia
Jan Vítek Czech Republic Metrostav a. s.
Walter Kaufmann Switzerland ETH Zürich
John Cairns United Kingdom Heriot-Watt University
David Fernández-Ordóñez Switzerland fib
Rolf Eligehausen Germany IWB, Universität Stuttgart
Viktor Sigrist Switzerland Lucerne School of Engineering and Architecture
Mikael Hallgren Sweden Tyréns Sverige AB
Aurelio Muttoni Switzerland École polytechnique fédérale de Lausanne (EPF Lausanne)
Niels Høj Switzerland HOJ Consulting GmbH
Stephen Foster Australia UNSW Australia
Johann Kollegger Austria Vienna University of Technology
Koichi Maekawa Japan Yokohama National University
Robert Vollum United Kingdom Imperial College London

  • TG2.1 - Serviceability models

    Serviceability limit states (SLS) determine the applicability of concrete structures. When these criteria are met, the concrete structure can function properly during its service life. Correct design according to serviceability limit states is therefore essential for the construction of durable, robust and valuable structures. Violation of the SLS criteria leads to structures that do not function properly and/or to reduced durability, the consequences of which can be recognised very quickly. Therefore, the models for verification of the expected criteria are of primary importance.

    The activity of the group is focused on the development of models for analysis of cracks and deformations of concrete structures. Beside the sophisticated numerical models, engineering practice requires practical engineering approaches, which are applicable in codes and in preliminary design stages when important decisions on the conceptual design are accepted. The activity will be focused on new structures and also on existing structures for assessment, rehabilitation or strengthening.


    Jan VitekConvener
    Jan Vitek

    First name Last name Country Affiliation
    Francesca Ceroni Italy Universitá degli Studi di Napoli Parthenope
    Diane Gardner United Kingdom Cardiff University
    Laurie Lacarrière France INSA Toulouse
    H. Gintaris Kaklauskas Lithuania Vilnius Gediminas Technical Univ.
    Michel Lorrain France INSA
    Clare Burns Switzerland Walt+Galmarini AG
    Philippe Bisch France Egis Industries
    Damir Tkalčič Croatia Civil Engineering Institute of Croatia
    Pier Debernardi Italy Politecnico di Torino
    Lars Eckfeldt Germany Deutsches Institut für Bautechnik (DIBt)
    Matteo Guiglia Italy Politecnico di Torino
    Dorian Borosnyoi-Crawley New Zealand WSP Research
    Jean-Philippe Sellin France Cerema
    Robert Lark United Kingdom Cardiff University
    Mamdouh El-Badry Canada University of Calgary
    Lukáš Vráblík Czech Republic Novak & Partner Ltd
    Maurizio Taliano Italy Politecnico di Torino
    Viktor Gribniak Lithuania Vilnius Gediminas Technical University
    Amin Ghali Canada University of Calgary
    Andor Windisch Germany -
    Josko Ozbolt Germany Universität Stuttgart
    François Toutlemonde France Université Gustave Eiffel
    Maria Rosaria Pecce Italy University of Naples Federico II
    Jean Michel Torrenti France Univ Gustave Eiffel
    Ekkehard Fehling Germany IBB Fehling + Jungmann GmbH
    Vladimir Cervenka Czech Republic Cervenka Consulting
    Mario Alberto Chiorino Italy Politecnico di Torino
    Alejandro Pérez Caldentey Spain FHECOR Ingenieros Consultores/Universidad Politécnica de Madrid
    Jan Vítek Czech Republic Metrostav a. s.
    David Fernández-Ordóñez Switzerland fib
    Olivier Burdet Switzerland EPFL-ENAC-IBETON
    Lluis Torres Spain University of Girona
    Roman Wan-Wendner Belgium Ghent University
    Frédéric Duprat France INSA Toulouse
    Antonio Mari Bernat Spain Uni. Politéc. Catalunya
    Cristina Barris Spain Universitat de Girona
    Alena Kohoutkova Czech Republic Czech Technical University - CVUT
    Philippe Menétrey Switzerland IngPhi sa
    Eva Oller Ibars Spain Technical University of Catalonia
    Tamon Ueda China Shenzhen University
    György L. Balázs Hungary Budapest Univ. of Techn. & Economics
    Nikola Tošić Spain Universitat Politècnica de Catalunya
    Christina McLeod South Africa University of Kwazulu - Natal
    Arvydas Rimkus Vilnius Lithuania Gediminas Technical University
    Dirk Schlicke Austria Technische Universität Graz
    Jean-Jacques Brioist France SIAM, AFGC
    Syed Yasir Alam France Ecole Central de Nantes
    Reignard Tan Norway NTNU Trondheim
    Viet Tue Nguyen Austria TU Graz
    Robert Vollum United Kingdom Imperial College London
    ab van den bos Netherlands NLyse
    Helder Filipe Moreira de Sousa Portugal Brisa Group

    • WP2.1.1 - Long-term behaviour of prestressed concrete bridges
       
      Some concrete bridges suffer from deflections that are larger than expected. The objective of WP2.1.1 is to explain possible reasons of this phenomenon, to identify factors and finally to propose recommendations for the design of new bridges or as well as the rehabilitation of existing bridges.

      Jan VitekConvener
      Jan Vitek

      First name Last name Country Affiliation
      György L. Balázs Hungary Budapest Univ. of Techn. & Economics
      Jean-Philippe Sellin France Cerema
      Mario Alberto Chiorino Italy Politecnico di Torino
      Alejandro Pérez Caldentey Spain FHECOR Ingenieros Consultores/Universidad Politécnica de Madrid
      Jan Vítek Czech Republic Metrostav a. s.
      David Fernández-Ordóñez Switzerland fib
      Olivier Burdet Switzerland EPFL-ENAC-IBETON
      Roman Wan-Wendner Belgium Ghent University
      Antonio Mari Bernat Spain Uni. Politéc. Catalunya
      Frédéric Duprat France INSA Toulouse
      Mamdouh El-Badry Canada University of Calgary
      Robert Lark United Kingdom Cardiff University
      Philippe Menétrey Switzerland IngPhi sa
      Lukáš Vráblík Czech Republic Novak & Partner Ltd
      Cristina Barris Spain Universitat de Girona
      Christina McLeod South Africa University of Kwazulu - Natal
      Eva Oller Ibars Spain Technical University of Catalonia
      Dirk Schlicke Austria Technische Universität Graz

    • WP2.1.2 - Restrained and imposed deformations
       
      The main objective of Working Party 2.1.2 is to present practical recommendations for the design of reinforced and post-tensioned concrete structures to accommodate the effects of restrained and imposed deformations. This involves looking into the causes of internally-induced and externallyimposed deformations and point out their different influences on the structural behaviour. The WP will assess various effects that may affect the degree of restraint such as superimposed loading and presence of prestressing, and propose modifications to existing design criteria where relevant.
       
      Guidance will be given on the use of nonlinear response analysis for rigorous response prediction.

      Perez CaldenteyConvener
      Perez Caldentey

      First name Last name Country Affiliation
      György L. Balázs Hungary Budapest Univ. of Techn. & Economics
      Carlos Bajo Pavia Spain Ferrovial Agromán S. A.
      José Câmara Portugal Inst. Superior Tecnico
      Jean Michel Torrenti France Univ Gustave Eiffel
      Jan Vítek Czech Republic Metrostav a. s.
      Alejandro Pérez Caldentey Spain FHECOR Ingenieros Consultores/Universidad Politécnica de Madrid
      David Fernández-Ordóñez Switzerland fib
      Lluis Torres Spain University of Girona
      Lukáš Vráblík Czech Republic Novak & Partner Ltd
      Viktor Gribniak Lithuania Vilnius Gediminas Technical University
      Laurie Lacarrière France INSA Toulouse
      Antonio Mari Bernat Spain Uni. Politéc. Catalunya
      Maurizio Taliano Italy Politecnico di Torino
      Hugo Corres Spain FHECOR Ingenieros Consultores
      Dirk Schlicke Austria Technische Universität Graz

  • TG2.2 - Ultimate limit state models

    Task Group 2.2 was established to evaluate and develop models for the conception, design and analysis of concrete structures. Topics within the scope of the work may include models that deal with the ultimate limit state and with ductility as to their affect on peak and post peak behaviours.

    The objective of TG2.2 is to synthesise available results from research, testing and design experience. Therefore, research and development in this field is monitored, documented and evaluated. For the time being, the work is focused on the behaviour of slabs and beams in shear, shear aspects in the design of members reinforced with steel bars, steel fibres or a combination of steel fibres and bars and the punching behaviour of slabs. Moreover, strut-and-tie modelling is treated as a specific method to capture ultimate limit states.


    Aurelio MuttoniConvener
    Aurelio Muttoni

    First name Last name Country Affiliation
    Steve Denton United Kingdom WSP
    Joost Walraven Netherlands Delft University of Technology
    Oguzhan Bayrak United States Univ. of Texas at Austin
    Josef Hegger Germany RWTH Aachen
    Fausto Minelli Italy University of Brescia
    Robert Vollum United Kingdom Imperial College London
    Miguel Fernández Ruiz Spain Universidad Politécnica de Madrid
    David Fernández-Ordóñez Switzerland fib
    Aurelio Muttoni Switzerland École polytechnique fédérale de Lausanne (EPF Lausanne)
    Miguel Lourenço Portugal JSJ Consulting
    Stephen Foster Australia UNSW Australia
    Daniel Kuchma United States University of Illinois
    Marco di Prisco Italy Politecnico di Milano
    Evan Bentz Canada University of Toronto

    • WP2.2.1 - Shear in beams
       
      WP2.2.1 will prepare a bulletin about shear design and analysis models for beams (physical basis and experimental validation). Several aspects are considered to be treated in the report, including the influence of the member size or of point loads near supports, clear definitions of failure modes, strut-and-tie modelling or nonlinear calculation procedures.
       

      f26a5b1890dc0eaf1ac664c5Convener
      Oguzhan Bayrak

      First name Last name Country Affiliation
      Joost Walraven Netherlands Delft University of Technology
      Oguzhan Bayrak United States Univ. of Texas at Austin
      Beatrice Belletti Italy Univ. degli Studi di Parma - Engineering and Architecture
      Josef Hegger Germany RWTH Aachen
      Robert Vollum United Kingdom Imperial College London
      Miguel Fernández Ruiz Spain Universidad Politécnica de Madrid
      Walter Kaufmann Switzerland ETH Zürich
      David Fernández-Ordóñez Switzerland fib
      Viktor Sigrist Switzerland Lucerne School of Engineering and Architecture
      Aurelio Muttoni Switzerland École polytechnique fédérale de Lausanne (EPF Lausanne)
      Antonio Cladera Bohigas Spain University of Balearic Islands
      Patrick Huber Austria Vienna University of Technology
      Trevor Hrynyk United States University of Waterloo
      Stephen Foster Australia UNSW Australia
      Daniel Kuchma United States University of Illinois
      Sung-Gul Hong Korea, Republic of Seoul National University
      Boyan Mihaylov Belgium University of Liege
      Juan Sagaseta United Kingdom University of Surrey
      Almila Uzel Turkey Yeditepe University
      Evan Bentz Canada University of Toronto

    • WP2.2.2 - Shear in members with steel fibres
       
      WP2.2.2 will invite further experts to participate.

      f26a5b1890dc0eaf1ac664c5Convener
      Marco di Prisco

      First name Last name Country Affiliation
      Fausto Minelli Italy University of Brescia
      David Fernández-Ordóñez Switzerland fib
      Stephen Foster Australia UNSW Australia
      Marco di Prisco Italy Politecnico di Milano

    • WP2.2.3 - Punching and shear in slabs
       
      WP2.2.3 will invite further experts to participate.

      f26a5b1890dc0eaf1ac664c5Convener
      Aurelio Muttoni

      First name Last name Country Affiliation
      Maurizio Orlando Italy Università degli Studi di Firenze
      Günter Rombach Germany Techn. Univ. of Hamburg-Harburg
      António Ramos Portugal NOVA School of Science &Technology
      Jaroslav Halvonik Slovakia Slovak University of Technology in Bratislava
      Mary Beth Hueste United States Texas A&M University
      Dominik Kueres Germany RWTH Aachen University
      Rupert Walkner Austria University of Innsbruck
      Gustavo Parra-Montesinos United States University of Michigan
      Guilherme Melo Brazil Universidade de Brasilia
      Joost Walraven Netherlands Delft University of Technology
      Oguzhan Bayrak United States Univ. of Texas at Austin
      Josef Hegger Germany RWTH Aachen
      Robert Vollum United Kingdom Imperial College London
      Miguel Fernández Ruiz Spain Universidad Politécnica de Madrid
      Anssi Laaksonen Finland Tampere University of Technology
      Carlos Ospina United States Simpson, Gumpertz & Heger Inc.
      Markus Vill Austria Vill ZT GmbH
      David Fernández-Ordóñez Switzerland fib
      Mikael Hallgren Sweden Tyréns Sverige AB
      Jürgen Feix Austria University of Innsbruck
      Aurelio Muttoni Switzerland École polytechnique fédérale de Lausanne (EPF Lausanne)
      Linh Hoang Denmark Danmarks Tekniske Universitet
      Juan Sagaseta United Kingdom University of Surrey
      Hong-Gun Park Korea, Republic of Seoul National University
      Maria Polak Canada University of Waterloo
      Yuguang Yang Netherlands TU Delft

    • WP2.2.4 - Strut and tie modelling
       
      WP2.2.4 will address topics such as ordinary and more refined models, the level of approximation concept, an update of the MC2010 provisions, reversal loading and 3D models.

      Lourenço, Miguel Filipe Passos SérioConvener
      Lourenço, Miguel Filipe Passos Sério

      First name Last name Country Affiliation
      João Almeida Portugal Instituto Superior Técnico Lisboa
      Miguel Fernández Ruiz Spain Universidad Politécnica de Madrid
      Stathis Bousias Greece University of Patras
      David Fernández-Ordóñez Switzerland fib
      Jaime Mata-Falcón Spain Universitat Politècnica de València
      Miguel Lourenço Portugal JSJ Consulting
      Boyan Mihaylov Belgium University of Liege
      Linh Hoang Denmark Danmarks Tekniske Universitet
      Carlos Meléndez Spain Esteyco SA
      Duarte Faria Switzerland Muttoni et Fernández, ingénieurs conseils SA
      Miguel Pedrosa Ferreira Portugal -
      Aurelio Muttoni Switzerland École polytechnique fédérale de Lausanne (EPF Lausanne)

  • TG2.3 - Fire design of concrete structures

    Task Group 2.3 welcomes active members with expertise in theory and practice in relation to fire design of concrete structures. The scope of TG2.3 comprises a discussion of theoretical and practical problems in relation to fire design and the development of the state-of-the-art and best practices for fire design of concrete structures. It is the goal that the results of the task group will not only serve as a reference for the experts within the topic of fire design, but also will be helpful for the members of the fib in general.

    The scope of the work of TG2.3 is based on the previous achievements, which include Bulletins 38 and 46 on fire design of concrete structures: materials, modelling, structural behaviour and assessment, as well as contributions to the fib Model Code and various workshops and special sessions on these topics.

    In the next phase, TG2.3 will concentrate on a number of topical issues within fire design, with the objective of providing general engineering guidance within these fields. The work is organised in three working parties, with the following titles and scope.


    Ruben Van CoileConvener
    Ruben Van Coile

    First name Last name Country Affiliation
    Frank Dehn Germany KIT Karlsruher Institut für Technologie
    Patrick Bamonte Italy Politecnico di Milano
    Roberto Felicetti Italy Politecnico di Milano
    Jean Marc Franssen Belgium Université de Liège
    João Rodrigues Portugal University of Coimbra - Polo II
    Pietro Gambarova Italy Politecnico di Milano
    Venkatesh Kodur United States Michigan State University
    Long Phan United States NIST
    David Fernández-Ordóñez Switzerland fib
    Ruben Van Coile Belgium Ghent University
    Luc Taerwe Belgium Ghent University
    Cristian Maluk Australia The University of Queensland
    Hitesh Lakhani Germany University of Stuttgart
    Thomas Gernay United States Johns Hopkins University
    Negar Elhami Khorasani United States University at Buffalo
    M.Z. Naser United States Clemson University
    Frederik Hänsel Germany -
    Nataša Kalaba France Cerib
    Francesco Lo Monte Italy Politecnico di Milano
    Elena Michelini Italy University of Parma
    Riccardo Stucchi Switzerland Lombardi SA
    Ankit Agrawal United States Integral Research Solutions Group
    Tom Molkens Belgium KU Leuven
    Moritz Boxheimer Germany Karlsruhe Institute of Technology
    Peng Gao China Hefei University of Technology
    Katherine Cashell United Kingdom University College London
    Urska Blumauer Slovenia Slovenian Building Research Institute

    • WP2.3.1 - Spalling design
       

      The aim of WP2.3.1 is to prepare a technical report providing guidance on the structural fire engineering design for concrete structures with a high probability and/or sensitive to the occurrence of concrete spalling during or after a fire.


      Cristian MalukConvener
      Cristian Maluk

      First name Last name Country Affiliation
      Roberto Felicetti Italy Politecnico di Milano
      David Fernández-Ordóñez Switzerland fib
      João Rodrigues Portugal University of Coimbra - Polo II
      Hitesh Lakhani Germany University of Stuttgart
      Cristian Maluk Australia The University of Queensland
      Long Phan United States NIST

    • WP2.3.2 - Performance-based fire design
       
      The aim of WP2.3.2 is to summarise, in a technical report, the international state-of-the-art and to discuss it specifically in relation to concrete structures, with the aim of achieving a proposal for its practical application.

      Thomas GernayConvener
      Thomas Gernay

      First name Last name Country Affiliation
      Jean Marc Franssen Belgium Université de Liège
      David Fernández-Ordóñez Switzerland fib
      Thomas Gernay United States Johns Hopkins University
      Patrick Bamonte Italy Politecnico di Milano
      Hitesh Lakhani Germany University of Stuttgart
      Cristian Maluk Australia The University of Queensland
      Negar Elhami Khorasani United States University at Buffalo
      M.Z. Naser United States Clemson University
      João Rodrigues Portugal University of Coimbra - Polo II
      Ruben Van Coile Belgium Ghent University
      Marcus Achenbach Germany LGA KdöR
      Mohsen Roosefid France IRSN

    • WP2.3.3 - Fire resistance of concrete tunnels
       
      The aim of WP2.3.3 is to prepare a technical report concerning structural engineering aspects of fire in tunnels. The main topics to be discussed are the design of concrete tunnels exposed to fire, fire scenario for different tunnels, material for concrete tunnels and design supported by testing.
       

      Patrick BalmonteConvener
      Patrick Balmonte

      First name Last name Country Affiliation
      Patrick Bamonte Italy Politecnico di Milano
      Frederik Hänsel Germany -
      Nataša Kalaba France Cerib
      Francesco Lo Monte Italy Politecnico di Milano
      Elena Michelini Italy University of Parma
      Riccardo Stucchi Switzerland Lombardi SA
      David Fernández-Ordóñez Switzerland fib

    • WP2.3.4 - Post-fire assessment
       
      The aim of WP2.3.4 is to prepare a technical report the post fire assessment of concrete structures, summarizing the international state-of-the-art and providing actionable guidance on the evaluation of concrete structures following fire exposure.

      Ruben Van CoileConvener
      Ruben Van Coile

      First name Last name Country Affiliation
      Ruben Van Coile Belgium Ghent University
      Roberto Felicetti Italy Politecnico di Milano
      Thomas Gernay United States Johns Hopkins University
      Venkatesh Kodur United States Michigan State University
      Hitesh Lakhani Germany University of Stuttgart
      Tom Molkens Belgium KU Leuven
      João Rodrigues Portugal University of Coimbra - Polo II
      Ankit Agrawal United States Integral Research Solutions Group
      David Fernández-Ordóñez Switzerland fib
      Cristian Maluk Australia The University of Queensland

  • TG2.4 - Computer-based modelling and design

    Task Group 2.4 (TG2.4) aims to bridge the gap between complex and advanced analyses and practical design applications. The current state of knowledge on nonlinear methods, thermomechanical analyses as well as the application of holistic 3D building models will be prepared for practical use.

    The scope and objectives of TG2.4 are to:

    • survey the current state of knowledge on computer-based modelling and design;
    • develop guidance documents related to the application of non-linear computer-based analysis methods for assessing performance and aiding the design of concrete members;
    • develop guidance documents related to the application of thermomechanical computer-based analysis methods for assessing the cracking risk respectively the mode of cracking and the required minimum reinforcement due to imposed and restrained deformations;
    • establish frameworks and methods to incorporate the application of holistic 3D building models in the static analysis and design in practice;
    • provide guidance on the application of computational modelling procedures to post-construction assessments, forensic engineering, and rehabilitation work relating to existing concrete structures.

    Moreover, the Task Group 2.4 shall become a platform for researchers and practical users to:

    • propose criteria for calibrating or validating computer-based procedures employed for concrete structure design or assessment;
    • discuss the extension of computer-based modelling procedures to structures employing high performance concretes, fibre-reinforced concretes, and composite concrete structures;
    • work toward integrating computer-based analysis-related provisions within the Model Code.

    Dirk SchlickeConvener
    Dirk Schlicke

    First name Last name Country Affiliation
    Daniel Kuchma United States University of Illinois
    Laura Lowes United States University of Washington
    Stavroula (S.J.) Pantazopoulou Canada The Lassonde Faculty of Engineering, York University
    Enrico Spacone Italy Università G. D’Annunzio
    Oguzhan Bayrak United States Univ. of Texas at Austin
    Manfred Curbach Germany Technische Univ. Dresden
    Vladimir Cervenka Czech Republic Cervenka Consulting
    Walter Kaufmann Switzerland ETH Zürich
    David Fernández-Ordóñez Switzerland fib
    Stephen Foster Australia UNSW Australia
    Giorgio Monti Italy Sapienza Università di Roma
    Maria Polak Canada University of Waterloo
    Diego Lorenzo Allaix Netherlands TNO Neitherlands
    Mazen Ayoubi Germany Jordahl GmbH
    Beatrice Belletti Italy Univ. degli Studi di Parma - Engineering and Architecture
    Jaime Mata-Falcón Spain Universitat Politècnica de València
    Serhan Guner Canada Morrison Hershfield Ltd
    Max Hendriks Netherlands Delft University of Technology
    Frank Vecchio Canada University of Toronto
    Marius Weber Switzerland ETH Zurich
    Bjørn William Strand Norway Multiconsult AS
    Evan Bentz Canada University of Toronto
    Morten Engen Norway Multiconsult AS
    Tetsuya Ishida Japan Department of Civil Engineering
    Dirk Schlicke Austria Technische Universität Graz
    ab van den bos Netherlands NLyse

    • WP2.4.1 - Modelling of Fibre Reinforced Concrete Structures
       

      Discrete fibres are being added to cement based materials (Fibre reinforced concrete, FRC) in order to increase the post-cracking residual strength of concrete structures. The fibre reinforcement mechanisms are mainly activated after crack initiation of the binder paste, so modelling the behaviour of FRC requires numerical approaches able of simulating the crack initiation and crack propagation in cement based materials. However, the designers that have the responsibility to design FRC structures face several challenges for selecting the most appropriate constitutive model, such is the case when intended to use sophisticated computer programs based on the finite element method (FEM). The values of the parameters of the constitutive models, and how to assure that these values are representative of the behaviour of the real structure are key aspects that designers face.

      The main aim of this WG is to propose reliable methodologies for the application of FEM-based computer models for the design of FRC structures by considering their serviceability and ultimate limit state exigencies.


      Joaquim A. O. BarrosConvener
      Joaquim A. O. Barros

      First name Last name Country Affiliation
      Joaquim A. O. Barros Portugal Universidade do Minho
      David Fernández-Ordóñez Switzerland fib
      ab van den bos Netherlands NLyse
      Alberto Carpinteri Italy Politecnico di Torino
      Alessandro Fantilli Italy Politecnico di Torino
      Beatriz Sanz Spain Technical University of Madrid
      Erez GAL Israel Ben-Gurion University of the Negev
      Frank Vecchio Canada University of Toronto
      Jan Cervenka Czech Republic Cervenka Consulting Ltd
      Liberato Ferrara Italy Politecnico di Milano
      Pierre Rossi France IFSTTAR
      Antonio Caggiano Germany Univ. of Buenos Aires/Univ. of Darmstadt
      Daniel Dias-da-Costa Portugal The Univ. of Sydney / Univ. of Coimbra
      David Cendon Spain Universidad Politécnica de Madrid
      Elisa Poveda Bautista Spain University of Castilla-La Mancha
      Erik Schlangen Netherlands Delft University of Technology
      Gerrit Neu Germany Ruhr University Bochum
      Gunther Meschke  Germany Ruhr University Bochum
      Jaime Planas  Spain Technical University of Madrid
      Peter Juhasz Hungary JKP Static - Budapest
      Massimiliano Cremonesi Italy Politecnico di Milano
      Nilüfer Özyurt Turkey Boğaziçi University
      Petr Kabele Czech Republic Czech Technical University in Prague
      Rena C. Yu Spain University of Castilla-La Mancha
      Stamatina Chasioti Canada Yorku University
      Ventura Gouveia Portugal Polytechnic Institute of Viseu
      Vitor Cunha  Portugal University of Minho
      Yin Chi China Wuhan University
      Luis Matos Portugal University of Minho
      Federico Accornero China -

    • WP2.4.2 - Life-span numerical simulation of concrete structures
       

      Accurate prediction of the durability and long-term performance of concrete structures is a challenging task due to numerous influencing factors involved and their complex combinations. Despite these complexities, the majority of current standard specifications deal with the durability of concrete on the basis of a rather simple, prescriptive approach, where a set of requirements are usually applied to at the design stage and serve mainly as the basis of quality control. The durability and long-term performance of concrete structures are also essential for evaluating sustainability aspects such as the life-cycle emissions of carbon dioxide (CO2). Therefore, we should be able to accurately predict the service life of a structure for given materials and processes. To improve our capability to predict the service life of concrete structures, we intend to use a multi-scale approach taking into account the time-dependent properties of concrete, externally applied loads and exposure environments in a holistic manner. To this end, such analysis models and simulation frameworks are still under development, and we aim to showcase its applicability, calculation procedures, required parameters, and appropriate ways of interpreting the simulation results.

      The main scope of WP 2.4.2 is developing accurate and reliable models and simulation frameworks for life-span numerical simulation of concrete structures. The primary objective of the activity is to couple material and structural behaviors with their durability and sustainability. The developed numerical models should cover mechanical behaviors, durability issues, and sustainability aspects such as CO2 emissions.


      Tetsuya IshidaConvener
      Tetsuya Ishida

      First name Last name Country Affiliation
      Tetsuya Ishida Japan Department of Civil Engineering
      David Fernández-Ordóñez Switzerland fib
      Motohiro Ohno Japan The University of Tokyo
      Farid Benboudjema France ENS Paris-Saclay, Université Paris-Saclay
      Shashank Bishnoi India Indian Institute of Technology Delhi
      Jie Dai China Henan University of Technology
      Fuyuan Gong China Zhejiang University
      B. Suryanto United Kingdom Heriot-Watt University Edinburgh
      Miguel Azenha Portugal Civil UMinho - Universidade do Minho
      Kefei Li China -
      Mehboob Rasul Japan Technology Development Division

  • TG2.5 - Bond and material models

    The overall motivation of TG2.5 is to advance theoretical and practical developments in topics related to bond and anchorage of reinforcing and prestressing materials, and to present these developments in an understandable and code-type formulated manner.

    TG2.5 undertakes activities which stimulate and advance modelling of the influence of bond and anchorage of reinforcement on structural performance, as well as the development of design provisions related to bond behaviour and detailing of laps and anchorages.


    Giovanni A. PlizzariConvener
    Giovanni A. Plizzari

    First name Last name Country Affiliation
    György L. Balázs Hungary Budapest Univ. of Techn. & Economics
    Francesca Ceroni Italy Universitá degli Studi di Napoli Parthenope
    Pietro Gambarova Italy Politecnico di Milano
    Stavroula (S.J.) Pantazopoulou Canada The Lassonde Faculty of Engineering, York University
    Maria Antonietta Aiello Italy University of Lecce
    Carlo Pellegrino Italy Università di Padova
    Flora Faleschini Italy University of Padova
    Roman Sedlmair Germany Karlsruher Institut für Technology (KIT)
    David Čitek Czech Republic CTU Klokner Institute
    Gabriella Bolzon Italy Politecnico di Milano
    Akanshu Sharma United States Purdue University
    Giovanni Metelli Italy University of Brescia
    Karin Lundgren Sweden Chalmers University of Technology
    Giovanni Plizzari Italy University of Brescia
    John Cairns United Kingdom Heriot-Watt University
    Charles Goodchild United Kingdom The Concrete Centre
    David Fernández-Ordóñez Switzerland fib
    Rolf Eligehausen Germany IWB, Universität Stuttgart
    Aurelio Muttoni Switzerland École polytechnique fédérale de Lausanne (EPF Lausanne)
    Bruno Massicotte Canada Ecole Polytechnique de Montréal
    Dario Coronelli Italy Politecnico di Milano
    Marianoela Leone Italy Universita del Salento
    Remy Lequesne United States The University of Kansas
    Giovanni Muciaccia Italy Politecnico di Milano
    Giovacchino Genesio Germany Hilti group
    Josipa Bosnjak Germany Universität Stuttgart
    Fabrizio Palmisano Italy PPV Consulting Studio Palmisano Perilli Associati,
    Juan Murcia-Delso Spain Universitat Politècnica de Catalunya (UPC)
    Marc Koschemann Germany Technische Universität Dresden

  • TG2.6 - Composite steel-concrete construction

    Steel-concrete composite construction allows various structural solutions that optimize the performances of the two-component materials through a well-assessed design that takes into account all the particularities of steel and RC constructions as well as interaction problems.

    The use of composite construction is widely spread all around the world, and its use for the construction of medium-sized bridges is a very frequent technical choice. In this historical period, the concrete industry must take this into account.

    The motivation of the fib TG2.6 is to identify the meaningful characteristics of composite steel- concrete structures with respect to typical aspects of RC structures in order to provide technical knowledge and design provisions.

    The activity of the group is focused on the analyses of the structural behaviour of RC parts constituting steel-concrete composite members and the modeling of their interaction with the steel parts.


    Maria Rosaria PecceConvener
    Maria Rosaria Pecce
    Antonio BilottaCo-Convener
    Antonio Bilotta

    First name Last name Country Affiliation
    Paolo Napoli Italy Politecnico di Torino
    Giovanni Fabbrocino Italy University of Molise
    Luigi di Sarno Italy Università degli studi del Sannio
    Luigino Dezi Italy Università Politecnica delle Marche
    Ciro Faella Italy University of Salerno
    Claudio Amadio Italy University of Trieste
    Iolanda del Prete United Kingdom BuroHappold Engineering
    Dennis Lam United Kingdom University of Bradford
    Graziano Leoni Italy University of Camerino
    Yong Wang United Kingdom University of Manchester
    Riccardo Zandonini Italy University of Trento
    Gabriele Bertagnoli Italy Politecnico di Torino
    Emidio Nigro Italy Università degli Studi di Napoli Federico II
    Ahmed Elghazouli United Kingdom Imperial College London
    Giuseppe Mancini Italy Politecnico Torino
    Maria Rosaria Pecce Italy University of Naples Federico II
    Antonio Bilotta Italy University of Naples Federico II
    Alejandro Pérez Caldentey Spain FHECOR Ingenieros Consultores/Universidad Politécnica de Madrid
    Thanasis Triantafillou Greece University of Patras
    David Fernández-Ordóñez Switzerland fib
    Roman Wan-Wendner Belgium Ghent University
    Enzo Martinelli Italy University of Salerno
    Clémence Le Pourry France Ingenova
    Meini Su United Kingdom University of Manchester
    Hugo Corres Spain FHECOR Ingenieros Consultores
    Alejandro Giraldo Soto Switzerland -

  • TG2.7 - Seismic Design

    The motivation for the work of Task Group 2.7 (TG2.7) is the promotion of the use and improvement in safety of concrete structures under accidental (e.g. seismic) actions and/or in exposed regions worldwide.


    Paolo FranchinConvener
    Paolo Franchin

    First name Last name Country Affiliation
    Paolo Franchin Italy Sapienza Università di Roma
    Andreas Kappos United Arab Emirates Khalifa Univ.
    Michael Fardis Greece University of Patras
    David Fernández-Ordóñez Switzerland fib
    Gian Calvi Italy Universita degli Studi di Pavia
    Jesús-Miguel Bairán Spain Universitat Politècnica de Catalunya (UPC-BarcelonaTECH)
    Matjaz Dolsek Slovenia Faculty of Civil and Geodetic Engineering
    Iunio Iervolino Italy Università degli Studi di Napoli Federico II
    Tao Wang China Institute of Engineering Mechanics
    Philippe Bisch France Egis Industries
    Dionysis Biskinis Greece University of Patras
    Xilin Lu China Tongji University
    Telemachos Panagiotakos Greece Private
    Marko Marinković Serbia University of Belgrade
    Xavier Romão Portugal University of Porto
    Andrea Lucchini Italy Sapienza University of Rome
    Andrea Marchi Italy Sapienza University of Rome
    Qiuhong Zhao  China Tianjin University
    Alper Ilki Turkey ITU - Istanbul Technical University
    Shigeki Unjoh China Tohoku University
    Koichi Kusunoki Japan University of Tokyo
    Juan Murcia-Delso Spain Universitat Politècnica de Catalunya (UPC)
    Murat Altug Erberik Turkey Middle East Technical University
    Jeena Jayamon United States John A. Martin & Associates, Inc.
    André Furtado Portugal CERIS - Instituto Superior Técnico

  • TG2.8 - Safety and performance concepts

    The overall motivation of Task Group 2.8 (TG2.8) is based on the fact that structural systems are typically designed to stay in service for at least several decades. This implies that proper attention must be given to structural performance under various actions, both man-made and environmental, to the methodology of structural analysis and assessment, to material properties, to the inverse identification and monitoring of structural resistance among others. The main focus is the development of a holistic performance based design approach for new and existing structures and infrastructures.

    The objective of TG2.8 is to promote and to provide on the basis of the guide to good practice “safety and performance concepts – reliability assessment of concrete structures” the theoretical and practical developments for the performance based design. This includes structural safety, serviceability and reliability, advanced methodology including probabilistic methods, inverse analyses techniques, monitoring methods, and performance and optimised life-cycle cost based design concepts.


    Konrad BergmeisterConvener
    Konrad Berg-meister
    Luc TaerweCo-convener
    Luc Taerwe

    First name Last name Country Affiliation
    Dirk Proske Austria Universität für Bodenkultur
    David Lehky Czech Republic Brno University of Technology
    Andrzej Nowak United States University of Nebraska
    Dan Frangopol United States Lehigh University
    Drahomir Novak Czech Republic Technical University of Brno
    Jaime Fernández Gomez Spain Universidad Politecnica de Madrid
    Antonino Recupero Italy R & S Engineering
    Konrad Bergmeister Austria Univ. Bodenkultur
    André de Chefdebien France Rector Lesage
    Alfred Strauss Austria BOKU University
    Raphael Steenbergen Netherlands TNO Structures and Safety
    Ainars Paeglitis Latvia -
    C.-A. Graubner Germany Techn. University Darmstadt
    David Fernández-Ordóñez Switzerland fib
    Hans-Dieter Beushausen South Africa University of Cape Town
    Roman Wan-Wendner Belgium Ghent University
    José Campos e Matos Portugal University of Minho
    Christian Bucher Austria Techn. Univ. Wien
    Robby Caspeele Belgium Ghent University
    Nick Zygouris Greece Lithos Consulting Engineers
    Luc Taerwe Belgium Ghent University

  • TG2.9 - Fastenings to structural concrete and masonry

    The modern fastening technique is employed extensively for the transfer of concentrated loads into concrete and masonry structures. Cast-in-place anchors, placed in the formwork before casting of the concrete, as well as post-installed anchors and reinforcing bars, which are installed in hardened structural concrete or masonry, are equally common. Loads are transferred into the concrete or masonry by mechanical interlock, friction, bond or a combination of these mechanisms. However, independently of the load-transfer mechanism, all anchorages rely on the tensile strength of the concrete or masonry, a fact which must be taken into account in both assessment and design. Despite the widespread use of cast-in-place as well as post-installed anchors and reinforcing bars in construction, the overall level of understanding in the engineering community regarding their behaviour remains quite limited.

    In order to improve the general state of knowledge in this field, Task Group 2.9 “Fastenings to Structural Concrete and Masonry” (former Special Activity Group 4) was formed.

    The aim of TG2.9 is to collect and discuss the latest research results in the field of fastening technology, to identify new areas of research and to synthesise the research results in harmonised provisions for the design of fastenings.


    Rolf EligehausenConvener
    Rolf Eligehausen

    First name Last name Country Affiliation
    Giovanni Muciaccia Italy Politecnico di Milano
    Akanshu Sharma United States Purdue University
    Yoshiaki Nakano Japan University of Tokyo
    Elisabeth Vintzileou Greece National Technical University Athens
    Tomoaki Akiyama Japan Tokyo Soil Research CO., LTD
    Philipp Grosser Liechtenstein Hilti Corporation
    Jörg Asmus Germany IEA GmbH & Co. KG
    Yasuhiro Matsuzaki Japan Science University of Tokyo
    Rainer Mallee Germany -
    Dieter Lotze Germany Universität Stuttgart, Materialprüfungsanstalt Otto-Graf-Institut
    Klaus Block Germany fobatec GmbH
    Kurt Stochlia United States ICC Evaluation Service
    Yasutoshi Yamamoto Japan GAL Building Consultant Office
    Matthew Hoehler United States Nat. Inst. of Standards & Technologies
    Yoji Hosokawa Japan The Tokyo University
    Andra Hörmann-Gast United States ICC Evaluation Service, LLC
    Frank Haüsler Germany Halfen GmbH
    Anders Bergkivist Sweden Vattenfall
    Todd Davis United States Milwaukee School of Engineering
    Jay Dorst United States Atlas Consulting Group
    Mazen Ayoubi Germany Jordahl GmbH
    Shigehiro Ando Japan Sumitomo Osaka Cement
    Jean-Paul Marasco France ITW-Spit
    Peter Schillinger Germany fischerwerke GmbH & Co. KG
    David Xiong China Hilti
    Oliver Zeman Austria Universität für Bodenkultur
    Feng Zhu Germany Fischerwerke GmbH & Co. KG
    Brian Gerber United States IAPMO
    Thomas Kuhn Germany Adolf Würth GmbH & Co KG
    J. Bret Turley United States Simpson Strong Tie Company, Inc.
    Mark Ziegler United States Powers Fasteners Inc.
    Thomas Kolden United States Element Materials Technology
    Howard Silverman United States ICC - Evaluation Service
    Valerie Rostaind France Spit
    Philipp Mahrenholtz Germany Stanley Black & Decker Deutschland GmbH
    Rasoul Nilforoush Sweden Luleå University of Technology
    Andreas Wendt United States Simpson Strong Tie Company, Inc.
    Catherina Thiele Germany Technische Universität Kaiserlautern
    Pierre Pimienta France CSTB - Centre Scien. et Techn. du Bâtiment
    Gerhard Lange Germany Deutsches Institut für Bautechnik
    Nicolas Pinoteau France CSTB
    Jürgen Stork Germany Consultant
    Konrad Bergmeister Austria Univ. Bodenkultur
    Jochen Buhler Germany Adolf Würth GmbH & Co KG
    Thierry Guillet France CSTB
    Jan Hofmann Germany IWB, Universität Stuttgart
    Torsten Rutz Germany MKT Metall-Kunststoff-Technik GmbH
    John Silva United States Hilti Inc.
    Friedrich Wall Liechtenstein Hilti AG
    Philipp Strater Germany Chemofast Anchoring GmbH
    Ronald Cook United States University of Florida
    Longfei Li Germany Dr. Li Anchor Profi GmbH
    David Fernández-Ordóñez Switzerland fib
    Geoff Fletcher Australia National Precast Concrete Assoc Australia
    Norbert Randl Austria Carinthia Univ. of Applied Sciences
    Muneomi Takahashi Japan Hilti Japan
    Rolf Eligehausen Germany IWB, Universität Stuttgart
    Lennart Elfgren Sweden Luleå University of Technology
    Jorma Kinnunen Finland Peikko Group Corporation
    Roman Wan-Wendner Belgium Ghent University
    Jake Olsenv United States Powers Fasteners
    Alper Ilki Turkey ITU - Istanbul Technical University
    Werner Fuchs Germany Universität Stuttgart
    Christoph Mahrenholtz Germany Jordahl GmbH
    Jian Zhao United States University of Wisconsin
    Thomas Cebulla Germany S&P Software Consulting & Solutions GmbH
    Omar Al-Mansouri France CSTB (Centre Scientifique et Technique du Bâtiment)
    Thilo Pregartner Germany fischerwerke GmbH & Co. KG
    Máté Tóth Germany fischerwerke GmbH & Co. KG
    Chiwan Hsieh Taiwan, Province of China National Pingtung University of Science and Technology
    Vincent Chui United States ICC-Evaluation Service
    Andreas Beer Germany Halfen GmbH
    Thomas Sippel Finland Peikko Group Corp.
    Adeola Adediran United States Bechtel
    Beatrix Wittstock Germany Deutsches Institut für Bautechnik
    Ulrike Kuhlmann Germany University of Stuttgart
    Thilo Fröhlich Germany University of Stuttgart, Materials Testing Institute (Otto-Graf-Institut)
    Boglárka Bokor Liechtenstein Hilti Corporation
    Martin Umminger Germany Adolf Würth GmbH & Co. KG
    Giovacchino Genesio Germany Hilti group
    Andreas Kummerow Germany Deutsches Institut für Bautechnik
    Emanuel Ghermanschi-Lungu United Kingdom ECAP
    Tilak Pokharel Australia Australian Engineered Fasteners and Anchors Council (AEFAC)

    • WP2.9.1 - Review of current fib model with a view to MC2010 and model for anchor reinforcement
       
      Revision of the design model for anchorage reinforcement taking into account bond provisions of the fib MC 2010.

      Akanshu SharmaConvener
      Akanshu Sharma

      First name Last name Country Affiliation
      Akanshu Sharma United States Purdue University
      Jörg Asmus Germany IEA GmbH & Co. KG
      Jan Hofmann Germany IWB, Universität Stuttgart
      John Silva United States Hilti Inc.
      David Fernández-Ordóñez Switzerland fib
      Rolf Eligehausen Germany IWB, Universität Stuttgart
      Lennart Elfgren Sweden Luleå University of Technology
      Thomas Sippel Finland Peikko Group Corp.
      Adeola Adediran United States Bechtel
      Martin Umminger Germany Adolf Würth GmbH & Co. KG

    • WP2.9.2 - Open topics in the current design guide
       
      Review of the design provisions for anchorages in respect to inconsistencies and new research results and development of improved design provisions.

      Jürgen StorkConvener
      Jürgen Stork

      First name Last name Country Affiliation
      Rainer Mallee Germany -
      Andreas Wendt United States Simpson Strong Tie Company, Inc.
      Thilo Pregartner Germany fischerwerke GmbH & Co. KG
      Jürgen Stork Germany Consultant
      Jochen Buhler Germany Adolf Würth GmbH & Co KG
      Friedrich Wall Liechtenstein Hilti AG
      Longfei Li Germany Dr. Li Anchor Profi GmbH
      David Fernández-Ordóñez Switzerland fib
      Akanshu Sharma United States Purdue University
      Máté Tóth Germany fischerwerke GmbH & Co. KG
      Boglárka Bokor Liechtenstein Hilti Corporation
      Martin Umminger Germany Adolf Würth GmbH & Co. KG

    • WP2.9.3 - Shear lugs
       
      Development of provisions for the design of shear lugs. A proposal for designing fastenings with shear lugs has been accepted by TG2.9 and will be incorporated in the new edition of the fib design guide.

      Ronald CookConvener
      Ronald Cook

      First name Last name Country Affiliation
      Harald Michler Germany Technische Universität Dresden
      Jürgen Stork Germany Consultant
      John Silva United States Hilti Inc.
      Ronald Cook United States University of Florida
      David Fernández-Ordóñez Switzerland fib
      Rolf Eligehausen Germany IWB, Universität Stuttgart

    • WP2.9.4 - Fatigue loading
       
      Review of the existing simplified design provisions for anchorages under fatigue loading and development of less conservative design provisions.

      Dieter LotzeConvener
      Dieter Lotze
      Mate TothCo-convener
      Mate Toth

      First name Last name Country Affiliation
      Dieter Lotze Germany Universität Stuttgart, Materialprüfungsanstalt Otto-Graf-Institut
      Klaus Block Germany fobatec GmbH
      Jan Hofmann Germany IWB, Universität Stuttgart
      Friedrich Wall Liechtenstein Hilti AG
      Longfei Li Germany Dr. Li Anchor Profi GmbH
      David Fernández-Ordóñez Switzerland fib
      Máté Tóth Germany fischerwerke GmbH & Co. KG
      Thomas Sippel Finland Peikko Group Corp.
      Thilo Fröhlich Germany University of Stuttgart, Materials Testing Institute (Otto-Graf-Institut)
      Rolf Eligehausen Germany IWB, Universität Stuttgart
      Thilo Pregartner Germany fischerwerke GmbH & Co. KG

    • WP2.9.5 - Bonded anchors under sustained load
       
      Review of research results on bonded anchors under sustained load and development of provisions for the design of anchorages with bonded anchors and connections with post-installed reinforcement to take into account the negative influence of sustained load. A proposal for design provisions has been accepted by TG2.9 and will be incorporated in the fib design guide.

      Jan HofmannConvener
      Jan Hofmann
      Ronald CookConvener
      Ronald Cook

      First name Last name Country Affiliation
      Thierry Guillet France CSTB
      Jan Hofmann Germany IWB, Universität Stuttgart
      Joachim Schätzle Germany Fischerwerke GmbH & Co. KG
      Friedrich Wall Liechtenstein Hilti AG
      Ronald Cook United States University of Florida
      David Fernández-Ordóñez Switzerland fib
      Rolf Eligehausen Germany IWB, Universität Stuttgart
      Omar Al-Mansouri France CSTB (Centre Scientifique et Technique du Bâtiment)

    • WP2.9.6 - Post-installed reinforcement – Harmonisation of rules for reinforced concrete and anchorages with bonded anchors and post-installed reinforcement
       
      Development of a harmonised design concept for connections with bonded anchors and postinstalled reinforcement under static and seismic loading.

      John F. SilvaConvener
      John F. Silva

      First name Last name Country Affiliation
      Akanshu Sharma United States Purdue University
      John Silva United States Hilti Inc.
      David Fernández-Ordóñez Switzerland fib
      Rolf Eligehausen Germany IWB, Universität Stuttgart
      Christoph Mahrenholtz Germany Jordahl GmbH

    • WP2.9.7 - Splitting of bonded anchors
       
      Development of design provision for bonded anchors to prevent splitting of the concrete member during pretensioning and loading which shall replace the currently required approval tests.

      Jörg AsmusConvener
      Jörg Asmus

      First name Last name Country Affiliation
      Jörg Asmus Germany IEA GmbH & Co. KG
      Thierry Guillet France CSTB
      Ronald Cook United States University of Florida
      David Fernández-Ordóñez Switzerland fib
      Andreas Kummerow Germany Deutsches Institut für Bautechnik
      Omar Al-Mansouri France CSTB (Centre Scientifique et Technique du Bâtiment)

    • WP2.9.8 - Required stiffness of baseplates
       
      In general, anchorages are designed under the assumption that the baseplate is stiff. However, no criteria are given in the fib Design Guide to assure a stiff baseplate. These provisions are under development. Furthermore, design rules for fastenings with flexible base plates are being discussed.

      Longfei LiConvener
      Longfei Li

      First name Last name Country Affiliation
      Jürgen Stork Germany Consultant
      Friedrich Wall Liechtenstein Hilti AG
      Ronald Cook United States University of Florida
      Longfei Li Germany Dr. Li Anchor Profi GmbH
      David Fernández-Ordóñez Switzerland fib
      Rolf Eligehausen Germany IWB, Universität Stuttgart
      Akanshu Sharma United States Purdue University
      Brian Gerber United States IAPMO
      Dieter Lotze Germany Universität Stuttgart, Materialprüfungsanstalt Otto-Graf-Institut
      Giovanni Muciaccia Italy Politecnico di Milano
      Thilo Pregartner Germany fischerwerke GmbH & Co. KG
      Feng Zhu Germany Fischerwerke GmbH & Co. KG
      Beatrix Wittstock Germany Deutsches Institut für Bautechnik
      John Silva United States Hilti Inc.
      Clement Herve France EDF
      Jörg Asmus Germany IEA GmbH & Co. KG
      Omar Al-Mansouri France CSTB (Centre Scientifique et Technique du Bâtiment)
      Rainer Mallee Germany -
      Boglárka Bokor Liechtenstein Hilti Corporation
      Martin Umminger Germany Adolf Würth GmbH & Co. KG

    • WP2.9.9 - Fire Resistance of anchors and post-installed reinforcement
       
      Development of more refined provisions for the design of anchorages with all types of anchors and of connections with post-installed reinforcement under fire exposure. A proposal for the design of fastenings with post-installed reinforcement under fire exposure has been accepted by TG2.9. These will be incorporated in the fib design guide.

      Thierry GuilletConvener
      Thierry Guillet

      First name Last name Country Affiliation
      Kurt Stochlia United States ICC Evaluation Service
      Pierre Pimienta France CSTB - Centre Scien. et Techn. du Bâtiment
      Gerhard Lange Germany Deutsches Institut für Bautechnik
      Nicolas Pinoteau France CSTB
      Thierry Guillet France CSTB
      Jan Hofmann Germany IWB, Universität Stuttgart
      John Silva United States Hilti Inc.
      David Fernández-Ordóñez Switzerland fib
      Muneomi Takahashi Japan Hilti Japan
      Rolf Eligehausen Germany IWB, Universität Stuttgart
      Akanshu Sharma United States Purdue University
      Omar Al-Mansouri France CSTB (Centre Scientifique et Technique du Bâtiment)

    • WP2.9.10 - Evaluation and assessment of existing anchorages
       
      Development of provisions for evaluation and assessment of existing anchorages which are currently not available but urgently needed.

      Lennart ElfgrenConvener
      Lennart Elfgren

      First name Last name Country Affiliation
      Lennart Elfgren Sweden Luleå University of Technology
      Giovanni Muciaccia Italy Politecnico di Milano
      Longfei Li Germany Dr. Li Anchor Profi GmbH
      Akanshu Sharma United States Purdue University
      David Fernández-Ordóñez Switzerland fib
      Jörg Asmus Germany IEA GmbH & Co. KG
      Rolf Eligehausen Germany IWB, Universität Stuttgart
      Yasuhiro Matsuzaki Japan Science University of Tokyo
      Rasoul Nilforoush Sweden Luleå University of Technology
      John Silva United States Hilti Inc.
      Omar Al-Mansouri France CSTB (Centre Scientifique et Technique du Bâtiment)
      Thierry Guillet France CSTB
      Martin Umminger Germany Adolf Würth GmbH & Co. KG

    • WP2.9.11 - Steel shear strength of anchorages with stand-off base plate connection
       
      Development of provisions to calculate the design steel shear strength of anchorages with stand-off base plate connections. Design provisions proposed by WP have been accepted by TG2.9 and will be incorporated in the fib design guide.

      Ronald CookConvener
      Ronald Cook

      First name Last name Country Affiliation
      Giovanni Muciaccia Italy Politecnico di Milano
      Jan Hofmann Germany IWB, Universität Stuttgart
      John Silva United States Hilti Inc.
      Ronald Cook United States University of Florida
      David Fernández-Ordóñez Switzerland fib
      Rolf Eligehausen Germany IWB, Universität Stuttgart

    • WP2.9.12 - Seismic Design
       
      Development of provisions for seismic design of anchorages.

      Giovanni MuciacciaConvener
      Giovanni Muciaccia

      First name Last name Country Affiliation
      Giovanni Muciaccia Italy Politecnico di Milano
      Akanshu Sharma United States Purdue University
      David Fernández-Ordóñez Switzerland fib
      Omar Al-Mansouri France CSTB (Centre Scientifique et Technique du Bâtiment)
      Thomas Sippel Finland Peikko Group Corp.
      Martin Umminger Germany Adolf Würth GmbH & Co. KG
      Paolo Martino Calvi United States -

  • TG2.10 - Textile reinforced concrete construction and design

    New material composites such as textile/carbon reinforced concrete have been developed during the past two decades. Textile reinforced concrete is a composite material where the concrete is reinforced with textile structures instead of classical reinforcement steel. Apart from alcali resistant glass and similar materials, carbon has become the prevalent reinforcement material and lead to the development of so-called carbon concrete. Carbon textile fabrics as well as carbon bars are used as reinforcement material for carbon concrete. Carbon's resistance to corrosion allows an enormous reduction of concrete cover thickness in comparison to classical steel reinforced concrete.

    These developments offer new ways in concrete constructions due to the possibility for curved, thinner and more filigree construction components. This might be a starting point for several new research work. Therefore, the work of a task group is considered meaningful. The task group "Textile reinforced concrete" will mainly (not exclusively) deal with carbon reinforcement. The task group may contribute in working out rules and compiling guidelines for the design of constructions made of the new composite material textile/carbon reinforced concrete.

    The objective of the proposed task group is construction and design of textile reinforced concrete. Regarding the reinforcement material, carbon is in focus. The aim of the task group is to contribute in working out rules and compiling guidelines for the design of constructions made of textile/carbon reinforced concrete.


    Manfred CurbachConvener
    Manfred Curbach

    First name Last name Country Affiliation
    Frank Dehn Germany KIT Karlsruher Institut für Technologie
    Rostislav Chudoba Germany RWTH Aachen University
    Erez GAL Israel Ben-Gurion University of the Negev
    Alva Peled Israel Ben-Gurion University of the Negev
    Michael Raupach Germany RWTH Aachen University
    Silke Scheere Germany TU Dresden
    Barzin Mobasher United States Arizona State University
    Harald Michler Germany Technische Universität Dresden
    Giuseppe Mancini Italy Politecnico Torino
    Manfred Curbach Germany Technische Univ. Dresden
    Josef Hegger Germany RWTH Aachen
    Viktor Mechtcherine Germany Technical Univ. Dresden
    David Fernández-Ordóñez Switzerland fib
    ab van den bos Netherlands NLyse
    Thanasis Triantafillou Greece University of Patras
    Norbert Will Germany RWTH Aachen University
    Tine Tysmans Belgium Vrije Universiteit Brussel (VUB)
    Rolf Alex Germany Deutsches Institut für Bautechnik (DIBt)
    Birgit Beckmann Germany TU Dresden
    Isabella Giorgia Colombo Italy Politecnico di Milano
    Arnon Bentur Israel Technion - Israel Institute of Technology
    Matteo Colombo Italy Politecnico di Milano
    Flavio De Andrade Silva Brazil Pontificia Universidade Católica do Rio de Janeiro
    Lars Eckfeldt Germany Deutsches Institut für Bautechnik (DIBt)
    Petr Hajek Czech Republic Czech Technical University in Prague
    Oliver Heppes Germany Goldbeck Bauelemente Bielefeld SE
    Benjamin Kromoser Austria Universität für Bodenkultur Wien
    Minoru Kunieda Japan GIfu University
    Steffen Müller Germany TU Dresden
    Aurelio Muttoni Switzerland École polytechnique fédérale de Lausanne (EPF Lausanne)
    Antoine Naaman United States University of Michigan
    Corina Papanikolaou Greece University of Patras - VAT Nr 090061075
    Miguel Fernández Ruiz Spain Universidad Politécnica de Madrid
    Frank Schladitz Germany TU Dresden
    Alexander Schumann Germany TU Dresden
    Amir Si Larbi France Civil Engineering Department, Ecole Nationale d'ingénieurs de Saint-Etienne
    Jan Wastiels Belgium Vrije Universiteit Brussel
    Juliane Wagner Germany TU Dresden
    Marco di Prisco Italy Politecnico di Milano
    Marko Butler Germany TU Dresden
    Ulrich Häußler-Combe Germany TU Dresden
    Martin Hunger Germany BASF Construction Solutions GmbH
    Peter Jehle Germany TU Dresden
    Philipp Preinstorfer Austria Technische Universität Wien
    Silvio Weiland Germany Loock & Weiland
    Josiane Giese Germany Dresden University
    Bahman Ghiassi United Kingdom University of Birmingham / School of Engineering
    Pietro Mazzuca Italy University of Calabria

  • TG2.11 - Structures made by digital fabrication

    Digital fabrication processes for fabricating concrete-like products, objects and/or structures are typically grouped into three main categories: (i) Layered Extrusion (e.g. contour crafting, concrete printing etc.), (ii) Binder Jetting (e.g. D-shape), (iii) Slip-forming (e.g. smart dynamic casting). However, to date, many important developments have been accomplished for layered extrusion technology, consisting of a digitally controlled moving printing head (or nozzle) that precisely lays down the concrete or mortar material layer-by-layer.

    It is clear that the full understanding of the structural performances of digitally fabricated elements represents noteworthy progress in supporting the design of such innovative structures. In this way, reliable structural concepts and assessment methodologies could be integrated within existing international building codes/standards and adapted to the particularities of DFC, providing effective recommendations to the construction industry stakeholders.

    The primary objective of the task group is to identify limiting aspects of the current design practice for the implementation of novel, digitally-fabricated concrete structures. Based on that, the task group will address fundamental structural issues related to the particularities of DFC with the final aim of providing effective guidelines for code-compliant applications.


    Costantino MennaConvener
    Costantino Menna
    Domenico AsproneCo-Convener
    Domenico Asprone

    First name Last name Country Affiliation
    Liberato Ferrara Italy Politecnico di Milano
    Domenico Asprone Italy University of Naples Federico II
    Costantino Menna Italy University of Naples Federico II
    Kim Van Tittelboom Belgium University of Ghent
    Jaime Mata-Falcón Spain Universitat Politècnica de València
    Theo Salet Netherlands Witteveen + Bos Raadgev. Ing.
    David Fernández-Ordóñez Switzerland fib
    Freek Bos Netherlands Technische Universiteit Eindhoven
    Richard Buswell United Kingdom Loughborough University
    Sergio Cavalaro United Kingdom Loughborough University
    Geert de Schutter Belgium Ghent University
    Jacques Kruger South Africa Laboratory Manager & Researcher
    Dirk Lowke Germany Technische Universität Braunschweig
    Tor Martius-Hammer Norway SINTEF AS
    Viktor Mechtcherine Germany Technical Univ. Dresden
    Alessandro Morbi Italy ITALCEMENTI S.p.A. - HeidelbergCement Group
    Sandro Moro Italy BASF
    Venkatesh Naidu Nerella Germany TU-Dresden
    Nicolas Roussel France IFSTTAR
    Branko Šavija Netherlands Delft University of Technology
    Matthieu Schipper Netherlands Delft University of Technology
    Erik Schlangen Netherlands Delft University of Technology
    Weiqiang Wang China Hohai University
    Paulo J.S. Cruz Portugal University of Minho
    Lucia Licciardello Italy University of Brescia
    Wilson Ricardo Leal da Silva Denmark Teknologisk Institut
    Paul Tykodi United States -
    Ksenija Vasilic Germany German Society for Concrete and Construction Technology
    Navendu Rai United Arab Emirates -
    Helder Filipe Moreira de Sousa Portugal Brisa Group

  • TG2.12 - Protective Concrete Structures against Hazards

    Concrete structures are suitable for the development and construction of protective structures against several kinds of hazards, like a blast, missiles, impact or thermal loads. The reasons for such extreme loadings may be different, but the structures under consideration have to provide conditions for safe and relatively comfortable survival of people inside. The TG2.12 will develop documents which specify the conditions of performance of protective structures and conditions for their design.


    Klaas Van BreugelConvener
    Klaas Van Breugel

    First name Last name Country Affiliation
    Avraham Dancygier Israel Technion-Israel Institute of Technology
    Jaap Weerheijm Netherlands TU Delft
    Peter Jäger Switzerland Peter Jäger Partner Bauingenieure AG
    Klaas van Breugel Netherlands Delft Univ. of Technology
    David Fernández-Ordóñez Switzerland fib
    Sander Meijers Netherlands Royal Haskoning / DHV
    Birgit Beckmann Germany TU Dresden
    Alessandro Stocchi Germany Fraunhofer EMI

    • WP2.12.1 Design of structures subjected to impact and explosion
       
      Concrete structures can be subjected to variable actions inducing very high strain rates, generated by several kinds of hazards, like blast, missiles or fragments, impact, in normal conditions or fire. The reasons for such extreme loadings may be different, but the structures investigated have to provide conditions for safe and relatively comfortable survival of people and equipment inside.
       
      According to the TG 2.12 activity, the action group AG12 has rewritten the chapter 30.2.3 on Impact and Explosion. The synthesis introduced in the Model Code requires a background document able to explain the change introduced in relation to Model Code 2010.
       
      The members of the Working Party have prepared a first draft of a bulletin aimed at introducing the background knowledge that explains the main novelties introduced in the indicated chapter. The idea is to discuss the document together with the interested people of the TG 2.12 in order to give the designers who are called to design protective structures a modern and a reliable basic tool.

      Marco Di PriscoConvener
      Marco Di Prisco
      Ezio CadoniCo-Convener
      Ezio Cadoni

      First name Last name Country Affiliation
      Marco di Prisco Italy Politecnico di Milano
      David Fernández-Ordóñez Switzerland fib
      Josko Ozbolt Germany Universität Stuttgart
      Alejandro Pérez Caldentey Spain FHECOR Ingenieros Consultores/Universidad Politécnica de Madrid
      Avraham Dancygier Israel Technion-Israel Institute of Technology
      Jaap Weerheijm Netherlands TU Delft
      Matteo Colombo Italy Politecnico di Milano
      JIANGPENG SHU Norway Norwegian University of Science and Technology
      Nemkumar Banthia Canada Univ. of British Columbia
      Terje Kanstad Norway The Norwegian Univ.of Science & Tech
      Gerrie Dieteren Netherlands TNO
      Klaas van Breugel Netherlands Delft Univ. of Technology
      Manfred Keuser Germany BUNG Ingenieure A
      François Toutlemonde France Université Gustave Eiffel
      Kim Johansson Finland Concrete Assoc. of Finland
      Viktor Mechtcherine Germany Technical Univ. Dresden
      Manfred Curbach Germany Technische Univ. Dresden
      Barzin Mobasher United States Arizona State University
      Ezio Cadoni Switzerland DynaMat SUPSI Laboratory

  • TG2.13 - Design and assessment for tsunami loading

    The primary objective of the task group (TG) is to identify methodologies for: (i) the design of tsunami resistant structures/infrastructure, (ii) the assessment of existing assets against tsunami-induced loads and (iii) the design/assessment of existing assets towards the sequential hazards such as earthquakes and tsunami, or other triggering hazards. Assets under investigation include RC, masonry, steel and composite structures and infrastructure.

    The TG plans to face structural issues by focusing on the structural response of reinforced concrete structures and infrastructure under tsunami loading, with main focus on:

    • The definition and estimation of loads (i.e., hydrostatic and hydrodynamic horizontal and vertical loads induced by a tsunami, such as buoyancy) acting on structural members for design/assessment of structures and infrastructure;
    • The behaviour of non-structural components, such as infill walls;
    • The structural analysis methodology for design/assessment;
    • Performance levels and safety checks at local and global levels.

    The fundamental knowledge produced in this framework will support the introduction of reliable design/assessment criteria in the field of tsunami engineering. This will provide an improvement with respect to existing international codes and will represent the first guideline for Europe.

    The TG will also address aspects related to the harmonization of tsunami design provisions with existing design provisions for other kind of hazards.


    Rossetto TizianaConvener
    Rossetto Tiziana
    Del Zoppo MartaCo-Convener
    Del Zoppo Marta

    First name Last name Country Affiliation
    Tiziana Rossetto United Kingdom University College London
    Marta Del Zoppo Italy University of Naples Federico II
    Andre Barbosa United States Structural Engineering
    Ian Robertson United States University of Hawaii at Manoa
    Toshikazu Kabeyasawa Japan Faculty of Urban Environmental Sciences
    Ioan Nistor Canada University of Ottawa
    Dawn Lehman United States University of Washington
    Andrea Prota Italy Universita di Napoli Federico II
    Marco Baiguera United Kingdom University of Southampton
    Kyriazis Pitilakis Greece Aristotle University of Thessaloniki
    Priyan Dias Sri Lanka University of Moratuwa
    Katsu Goda Canada Western University
    Daniel Cox United States Oregon State University
    Gary Chock United States Martin, Chock & Carden, Inc.
    Dan Palermo Canada York University
    Patricio Catalan Chile -
    Cláudia Reis Portugal Instituto Superior Técnico
    David McGovern United Kingdom London South Bank University
    Taro Arikawa Japan Chuo University
    Davide Wüthrich Netherlands -
    Jonas Cels United Kingdom -
    Andrew Foster United Kingdom -
    Ian Chandler United Kingdom HR Wallingford
    Marco Di Ludovico Italy University of Naples
    Maria Teresa De Risi Italy University of Naples Federico II
    Julian Thamboo Sri Lanka South Eastern University of Sri Lanka
    Keith Adams United Kingdom -
    Angelos Dimakopoulos Greece University Campus, Rio, Patra

  • TG2.14 - Open-source code development by the fib

    The fib has started developing an open-source Python package containing models from the fib Model Code. Github is used as a platform for version control and code collaboration. On the long-term, this package should contain all models in the fib Model Code. When sufficiently mature, the package should be published on PyPI.org to arrange for easy distribution. The package should be published with a license that grants the user flexible rights to use, study, edit and publish the source code, without warranty of any kind.

    Primary objective of the TG: serve as a team of core developers or maintainers of the Python package. This includes, but is not limited to:

    • Contribute code to the package.
    • Respond to issues that are reported and initiate relevant actions.
    • Maintain a CI/CD, continuous integration and continuous delivery, pipeline.
    • Review contributions from the community, and merge these when properly matured.

    The fib seeks contributions from the fib and the engineering community as a whole.


    Morten EngenConvener
    Morten Engen
    Diego Alexandro TalledoCo-Convener
    Diego Alexandro Talledo

    First name Last name Country Affiliation
    Morten Engen Norway Multiconsult AS
    David Fernández-Ordóñez Switzerland fib
    DIEGO ALEJANDRO TALLEDO Italy University IUAV of Venice
    Daniel González de la Morena Spain Fhecor
    Javier García Hernando Spain Fhecor
    Carlos Mestre Spain Fhecor
    Alejandro Pérez Caldentey Spain FHECOR Ingenieros Consultores/Universidad Politécnica de Madrid
    Arthur Slobbe Netherlands TNO
    Jemma Ehsman Australia Rio Tinto - Dampier Salt
    Gijs Eumelen Netherlands TNO

  • TG2.15 - Bridges with combined reinforcement

    Unbonded – external post-tensioning (PT) tendons are gaining interest world-wide within the concrete bridge community. The ability to address unforeseen issues has always been valued by bridge engineers and unbonded external PT tendons provide bridge designers and owners the flexibility to address these issues through their ability to be replaced while the bridge is in-service. Four countries, France, Germany, Japan, and United States are using this technology to provide tendon replaceability.

    The use of unbonded tendons has led to components with both bonded and unbonded prestressing and/or mild reinforcement. Research has shown that the use of mixed reinforcement conditions (i.e. bonded and unbonded PT with and without mild reinforcement) in concrete members has structural implications (UF Report). Most current specifications consider their design approach as conservative for the design of components with mixed reinforcement conditions. However, research has shown that the performance and appropriate design of these members is complex and comprehensive guidance is needed to educate engineers on the design of these unique components. Therefore, there is a great need for clear design guidance to bridge designers on this unique and increasingly popular posttensioned component.

    This guidance can have at least four purposes: i) provide background information on the performance of mixed reinforced elements with varying amounts of unbonded to bonded PT ratios, ii) synthesize current codified design methods for members with mixed reinforcement, iii) develop guidance on appropriate analysis methods, and iv) develop design approach for flexural capacity, including resistance factors & associated ductility requirements.

    The primary objective of the task group (TG) is to serve as a team of core technical reviewers for the development of this technical report. Expertise in the design of complex concrete elements and experience with design methods for mixed reinforced members is desired.


    John CorvenConvener
    John Corven
    Oguzhan BayrakCo-Convener
    Oguzhan Bayrak

    First name Last name Country Affiliation
    John Corven United States Hardesty & Hannover Convener
    Oguzhan Bayrak United States Univ. of Texas at Austin
    David Fernández-Ordóñez Switzerland fib
    Christian Gläser Germany DYWIDAG-Systems International
    Adrian Gnägi Switzerland VSL International Ltd.
    Jan Vítek Czech Republic Metrostav a. s.
    Tommaso Ciccone Italy TENSA (Tensacciai s.r.l.)
    Reggie H. Holt United States Federal Highway Administration
    Will Potter United States Florida Department of Transportation
    Richard Brice United States Washington DOT
    Gregory Hunsicker United States OnPoint Engineering and Technology LLC
    Ivica Zivanovic France Freyssinet
    Jerry Pfutner United States COWI
    Dimitrios Paspastergiou Switzerland FEDRO
    David Garber United States FHWA
    Eisuke Nakamura Japan Public Works Research Institute

 

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