• COM3: Existing concrete

    COM3: Existing Concrete Structures

  • COM3: Existing concrete

    COM3: Existing Concrete Structures

Motivation

The goal of Commission 3 (COM3) is to define appropriate and reliable procedures to establish the safety of existing structures and any associated requirements for interventions to extend the safe operation or working life of such structures.

Scope and objective of technical work

COM3 will deliver this through the preparation of comprehensive guidance for the assessment of existing concrete structures, providing complementary recommendations to those given in the fib Model Code for Concrete Structures 2010 (fib MC2010), which was prepared primarily for the design of new concrete structures. To that end, COM3 will produce documents supporting the development of fib Model Code 2020 (fib MC2020) to be used for the assessment of the present structural performance and the prediction and evaluation of future structural performance of existing concrete structures with or without damage and/or revised operational requirements, together with any associated interventions required to extend their service life. It is envisaged that the documents to be produced could include technical reports, reviews of the state-of-the-art and technical history/evolution, technical guidelines, specifications and recommendations. 

 

Matthews StuartCommission Chair
Alfred Strauss
Giuseppe ManciniDeputy Chair
Robby Caspeele

First name Last name Country Affiliation
Walraven Joost Netherlands Delft University of Technology
Zandi Hanjari Kamyab Sweden Chalmers University of Technology
Sykora Miroslav Czech Republic Czech Technical University in Prague
Strauss Alfred Austria Univ. Bodenkultur Vienna
Steenbergen Raphaël Netherlands TNO Structures and Safety
Mancini Giuseppe Italy Politecnico Torino
Dieteren Gerrie Netherlands TNO
Fernández-Ordóñez David Switzerland fib
Matthews Stuart United Kingdom Consulting
Kessler Sylvia Germany Helmut-Schmidt-University/ University of the Federal Armed Forces Hamburg
Campos e Matos José Portugal University of Minho
Braml Thomas Germany Universität der Bundeswehr München
Ueda Tamon Japan Hokkaido University
Gong Fuyuan China Zhejiang University
Caspeele Robby Belgium Ghent University
Coronelli Dario Italy Politecnico di Milano
Bigaj-van Vliet Agnieszka Netherlands TNO-Built Environment + Geosciences

  • TG3.1 - Reliability and safety evaluation: full-probabilistic and semi-probabilistic methods for existing structures

    fib Task Group 3.1 (TG3.1) focuses on the reliability and safety evaluation of existing structures and focuses on the development of risk and reliability target levels for assessment and retrofitting, the full-probabilistic modelling of the structural safety and semi-probabilistic assessment methods for existing structures.

    The TG aims to (i) resolve pending questions with respect to the full-probabilistic assessment and target safety levels for the assessment and retrofitting of existing structures, and (ii) support the risk and reliability related questions arising due to the developments in TG3.2, TG3.3 and TG3.4.

    Initially, attention will be given to developing a technical guideline for assigning target reliabilities and making a suitable risk differentiation for existing and monumental structures, considering both individuals and groups.


    Miroslav SykoraConvener
    Miroslav Sykora
    Raphaël SteenbergenCo-Convener
    Raphaël Steenbergen

    First name Last name Country Affiliation
    Diamantidis Dimitris Germany Fachhochschule Regensburg
    Allaix Diego Lorenzo Italy Politecnico di Torino
    Prieto Miguel Spain Torroja Inst. of Construction Sciences
    Achenbach Marcus Germany LGA KdöR
    Hendriks Max Netherlands Delft University of Technology
    Holicky Milan Czech Republic Czech Techn. Univ. of Prague - CVUT
    Thöns Sebastian Germany BAM Federal Inst. for Mat. Research & Testing
    Linneberg Poul Denmark COWI A/S
    Faber Michael Denmark Aalborg University
    Mancini Giuseppe Italy Politecnico Torino
    Cervenka Jan Czech Republic Cervenka Consulting Ltd
    Strauss Alfred Austria Univ. Bodenkultur Vienna
    Sykora Miroslav Czech Republic Czech Technical University in Prague
    Steenbergen Raphaël Netherlands TNO Structures and Safety
    Fernández-Ordóñez David Switzerland fib
    Tanner Peter Spain Cesma Ingenieros
    Campos e Matos José Portugal University of Minho
    Engen Morten Norway Multiconsult AS
    Castaldo Paolo Italy Politecnico di Torino
    Gino Diego Italy Politecnico di Torino
    Glock Christian Germany Technical University of Kaiserslautern
    Hingorani Ramón Spain Instituto Eduardo Torroja
    Lara Sarache Carlos Paul Spain Instituto Eduardo Torroja
    Neves Luis United Kingdom Nottingham University
    Botte Wouter Belgium Ghent University

  • TG3.2 - Modeling of structural performance of existing concrete structures

    It is widely understood and accepted that existing concrete structures are different entities to contemporary new concrete structures. There are numerous flexibilities inherent to the process of the design of new concrete structures and in their construction. Existing structures are entities that can, in principle, be interrogated and assessed to establish their actual nature and condition. However, such processes have their difficulties and uncertainties and it is in fact often very difficult to interrogate an existing structure. These difficulties increase when an existing structure has experienced damage or deterioration. Accordingly, substantial and different uncertainties remain with respect to existing structures and these uncertainties need to be taken into account in the structural assessment process.


    Joost WalravenConvener
    Joost Walraven
    Dario CoronelliCo-Convener
    Dario Coronelli

    First name Last name Country Affiliation
    Bertagnoli Gabriele Italy Politecnico di Torino
    Hendriks Max Netherlands Delft University of Technology
    Dunkelberg Daniel Germany Pirlet & Partner Ingenieurgesellschaft mbh
    Zandi Hanjari Kamyab Sweden Chalmers University of Technology
    Kansara Kunal United Kingdom HD & M Mouchel Infrastructure Services
    Walraven Joost Netherlands Delft University of Technology
    Cervenka Jan Czech Republic Cervenka Consulting Ltd
    Belletti Beatrice Italy Univ. degli Studi di Parma
    Andrade Carmen Spain Instituto Eduardo Torroja
    Meda Alberto Italy University of Rome “Tor Vergata”
    Rinaldi Zila Italy University of Rome “Tor Vergata”
    Strauss Alfred Austria Univ. Bodenkultur Vienna
    Zilch Konrad Germany -
    Dieteren Gerrie Netherlands TNO
    Zwicky Daia Switzerland Univ. of Applied Sciences Fribourg
    Vardai Attila Hungary EMI-TUV SUD Ltd.
    de Boer Ane Netherlands Rijkswaterstaat Centre for Infrastructure & Environment
    Chrysostomou Christis Cyprus Cyprus University of Technology
    Matthews Stuart United Kingdom Consulting
    Fernández-Ordóñez David Switzerland fib
    Sigrist Viktor Switzerland Lucerne School of Engineering and Architecture
    León F. Javier Spain FHECOR - Ingenieros Consultores
    Kuchma Daniel United States University of Illinois
    Yang Yuguang Netherlands TU Delft
    Tondolo Francesco Italy Politecnico di Torino
    Ueda Tamon Japan Hokkaido University
    Nakamura Hikaru Japan Nagoya University
    Freitas Jeovan Norway Private
    Coronelli Dario Italy Politecnico di Milano
    Hendy Chris United Kingdom Atkins
    Hendy Chris United Kingdom Atkins
    Bigaj-van Vliet Agnieszka Netherlands TNO-Built Environment + Geosciences

  • TG3.3 - Assessment /evaluation and decision-making procedures for the through-life management of existing concrete structures

    Task Group 3.3 focuses on the development of a set of practical state-of-the-art guidelines for the assessment and decision-making procedures required for the through-life management of existing concrete structures, focusing on:

    • advanced assessment techniques for the evaluation of existing structures, both in their current condition and taking account of time-dependent changes which may occur to them;
    • simplified assessment approaches for such kind of evaluations;
    • the development of practical decision-making procedures to perform a complete and coherent assessment of an existing structure.

    The initial focus will be on the preparation of technical guidelines for the characterisation of deterioration mechanisms and of suitable prognosis methods that are feasible for practical engineering purposes. At the same time, technical guidelines will also be developed in order to clarify tools and techniques for surveys and monitoring of the addressed deterioration mechanisms.


    Sylvia KesslerConvener
    Sylvia Kessler
    José Campos e MatosCo-Convener
    José Campos e Matos

    First name Last name Country Affiliation
    Bertagnoli Gabriele Italy Politecnico di Torino
    Lehky David Czech Republic Brno University of Technology
    Novak Drahomir Czech Republic Technical University of Brno
    Orlowsky Jeanette Germany Technische Universität Dortmund
    Maas Stefan Luxembourg Université du Luxembourg
    Petraschek Thomas Austria OBB-Infrastruktur AG
    Ahrens Mark Alexander Germany Ruhr-Univ. Bochum
    Hansen Michael Germany Leibniz Universität Hannover
    Lavorato N/A Italy University of Rome
    Lombaert Geert Belgium University of Leuven
    Ralbosky Marian Austria Austrian Research Institute
    Zabel Volkmar Germany Bauhaus University Weimar
    Gulikers Joost Netherlands Rijkswaterstaat Centre for Infrastructure
    Mancini Giuseppe Italy Politecnico Torino
    Andrade Carmen Spain Instituto Eduardo Torroja
    Meda Alberto Italy University of Rome “Tor Vergata”
    Strauss Alfred Austria Univ. Bodenkultur Vienna
    Sykora Miroslav Czech Republic Czech Technical University in Prague
    Dieteren Gerrie Netherlands TNO
    Dyson Jonathon Australia BCRC
    Pielstick Brett United States -
    Matthews Stuart United Kingdom Consulting
    Fernández-Ordóñez David Switzerland fib
    Kessler Sylvia Germany Helmut-Schmidt-University/ University of the Federal Armed Forces Hamburg
    Tanner Peter Spain Cesma Ingenieros
    Campos e Matos José Portugal University of Minho
    León F. Javier Spain FHECOR - Ingenieros Consultores
    Monti Giorgio Italy Sapienza Università di Roma
    Tondolo Francesco Italy Politecnico di Torino
    Braml Thomas Germany Universität der Bundeswehr München
    Nakamura Hikaru Japan Nagoya University
    Casas Rius Joan Spain Tech. Univ. of Catalunya, UPC-BarcelonaTech
    Gorski Marcin Poland -
    Caspeele Robby Belgium Ghent University
    Apostolidi Eftychia Austria University BOKU (University ofNatural Resources and Life Sciences)
    Hendy Chris United Kingdom Atkins
    Hendy Chris United Kingdom Atkins

  • TG3.4 - Selection and implementation of interventions/through-life management activities and measures for concrete structures

    The focus will be on the selection and implementation of interventions and through-life management activities and measures for concrete structures. Its final goal is to provide the draft on intervention for the new fib MC2020. The basic procedure is updating “Chapter 9: Conservation” of the fib MC2010, considering recent progress in this field.

    The initial focus will be on the preparation of technical guidelines for the selection and implementation of interventions dealing with current major intervention methods.

    With respect to through-life management activities and measures for concrete structures, a primary objective will be updating “Chapter 9: Conservation” of the fib MC2010, considering recent technical progress and new ideas.


    Tamon UedaConvener
    Tamon Ueda
    Giuseppe ManciniCo-Convener
    Giuseppe Mancini

    First name Last name Country Affiliation
    Kikuta Etsuji Japan Civil Engineering Research Institute for Cold Region
    Zhang Dawei China Zhejiang University
    McKenna Philip Ireland Halcrow Group Ltd., a CH2M HILL Company
    Mancini Giuseppe Italy Politecnico Torino
    Andrade Carmen Spain Instituto Eduardo Torroja
    Rahimi Amir Germany Bundesanstalt für Wasserbau
    Vítek Jan Czech Republic Metrostav a. s.
    Bevc Lojze Slovenia ZAG Slovenije
    Kobayashi Koichi Japan Gifu University
    Dyson Jonathon Australia BCRC
    Vardai Attila Hungary EMI-TUV SUD Ltd.
    Bencardino Francesco Italy University of Calabria
    Gehlen Christoph Germany CBM
    Papworth Frank Australia BCRC
    Fernández-Ordóñez David Switzerland fib
    Campos e Matos José Portugal University of Minho
    León F. Javier Spain FHECOR - Ingenieros Consultores
    Su Meini United Kingdom University of Manchester
    Triantafillou Thanasis Greece University of Patras
    Lu Xilin China Tongji University
    Menna Costantino Italy University of Naples Federico II
    Randl Norbert Austria Carinthia Univ. of Applied Sciences
    Nakamura Hikaru Japan Nagoya University
    Ueda Tamon Japan Hokkaido University
    Saetta Anna Italy Università Iuav di Venezia
    Savoia Marco Italy University of Bologna
    Zhu Jihua China Shenzhen University
    Corres Peiretti Hugo Spain FHECOR Ingenieros Consultores

  • TG3.5 - Forensic engineering

    We have an enormous and an ever-increasing heritage of reinforced and prestressed concrete structures, many of which are currently approaching the end of their intended service life. However, there are pressing societal, economic and environmental needs to safely extend the service lives of many of these structures. This poses a delicate and challenging task if we are to make appropriate decisions on the through-life management and care of these constructed assets to achieve this while avoiding transferring an excessive burden onto the next generation. To do this we need a better understanding of the real behaviours of structures, why they may not achieved the required performance and, ultimately, what may cause them to fail.


    Daniele ZontaConvener
    Daniele Zonta

    First name Last name Country Affiliation
    Zonta Daniele United Kingdom University of Strathclyde

 

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