• 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
Stuart Matthews
Giuseppe ManciniDeputy Chair
Giuseppe Mancini

First name Last name Country Affiliation
Joost Walraven Netherlands Delft University of Technology
Kamyab Zandi Hanjari Sweden Chalmers University of Technology
Tamon Ueda Japan Hokkaido University
Takumi Shimomura Japan Nagaoka Univ. of Technology
Miroslav Sykora Czech Republic Czech Technical University in Prague
Alfred Strauss Austria Univ. Bodenkultur Vienna
Raphaël Steenbergen Netherlands TNO Structures and Safety
Norbert Randl Austria Carinthia Univ. of Applied Sciences
Giuseppe Mancini Italy Politecnico Torino
Gerrie Dieteren Netherlands TNO
Dario Coronelli Italy Politecnico di Milano
Robby Caspeele Belgium Ghent University
Alberto Meda Italy University of Rome “Tor Vergata”
David Fernández-Ordóñez Switzerland fib
- - - -
Stuart Matthews United Kingdom Building Research Establishment Ltd
Agnieszka Bigaj-van Vliet Netherlands TNO-Built Environment + Geosciences
Sylvia Kessler Germany Technical University of Munich

  • 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 fullprobabilistic modelling of the structural safety and semi-probabilistic assessment methods for existing structures.

    Further, the scope of the previous activities will be broadened in order to resolve pending questions with respect to the full-probabilistic assessment and target safety levels for the assessment and retrofitting of existing structures, and support the risk and reliability related questions arising due to the developments in TG3.2, TG3.3 and TG3.4.


    Robby CaspeeleConvener
    Robby Caspeele

    First name Last name Country Affiliation
    - - - -
    Dimitris Diamantidis Germany -
    Diego Lorenzo Allaix Italy -
    Miguel Prieto Spain -
    Wouter Botte Belgium Ghent University
    André Weber Germany Schöck Bauteile GmbH
    Marcus Achenbach Germany LGA KdöR
    Max Hendriks Netherlands -
    Milan Holicky Czech Republic -
    Sebastian Thöns Germany -
    Poul Linneberg Denmark COWI A/S
    Michael Faber Denmark Aalborg University
    Giuseppe Mancini Italy Politecnico Torino
    Jan Cervenka Czech Republic Cervenka Consulting Ltd
    Jürgen Schnell Germany University of Kaiserslautern
    Alfred Strauss Austria Univ. Bodenkultur Vienna
    Miroslav Sykora Czech Republic Czech Technical University in Prague
    Dara McDonnell Australia Arup
    Raphaël Steenbergen Netherlands TNO Structures and Safety
    Robby Caspeele Belgium Ghent University
    David Fernández-Ordóñez Switzerland fib
    Peter Tanner Spain Cesma Ingenieros

  • 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

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

  • 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.


    Alfred StraussConvener
    Alfred Strauss

    First name Last name Country Affiliation
    - - - -
    Francesco Tondolo Italy Politecnico di Torino
    Gabriele Bertagnoli Italy Politecnico di Torino
    David Lehky Czech Republic Brno University of Technology
    Drahomir Novak Czech Republic Technical University of Brno
    Jeanette Orlowsky Germany -
    Stefan Maas Luxembourg -
    Thomas Petraschek Austria OBB-Infrastruktur AG
    Mark Alexander Ahrens Germany Ruhr-Univ. Bochum
    Michael Hansen Germany Leibniz Universität Hannover
    - Lavorato Italy University of Rome
    Geert Lombaert Belgium University of Leuven
    Marian Ralbosky Austria Austrian Research Institute
    Volkmar Zabel Germany Bauhaus University Weimar
    Joost Gulikers Netherlands Rijkswaterstaat Centre for Infrastructure
    Giuseppe Mancini Italy Politecnico Torino
    Camillo Nuti Italy Università degli Studi Roma Tre
    Carmen Andrade Spain Instituto Eduardo Torroja
    Dirk Lowke Germany Technische Universität Braunschweig
    Alberto Meda Italy University of Rome “Tor Vergata”
    Alfred Strauss Austria Univ. Bodenkultur Vienna
    Miroslav Sykora Czech Republic Czech Technical University in Prague
    Gerrie Dieteren Netherlands TNO
    Robby Caspeele Belgium Ghent University
    Giorgio Monti Italy Sapienza Università di Roma
    Jonathon Dyson Australia BCRC
    Manfred Keuser Germany BUNG Ingenieure AG
    Brett Pielstick United States Private
    Chris Hendy United Kingdom Atkins
    Hikaru Nakamura Japan Nagoya University
    Stuart Matthews United Kingdom Building Research Establishment Ltd
    David Fernández-Ordóñez Switzerland fib
    Harald Budelmann Germany TU Braunschweig
    Sylvia Kessler Germany Technical University of Munich
    Peter Tanner Spain Cesma Ingenieros

  • 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

    First name Last name Country Affiliation
    - - - -
    Etsuji Kikuta Japan Civil Engineering Research Institute for Cold Region
    Dawei Zhang China Zhejiang University
    Philip McKenna Ireland Halcrow Group Ltd., a CH2M HILL Company
    Giuseppe Mancini Italy Politecnico Torino
    Carmen Andrade Spain Instituto Eduardo Torroja
    Amir Rahimi Germany Bundesanstalt für Wasserbau
    Jan Vítek Czech Republic Metrostav a. s.
    Lojze Bevc Slovenia ZAG Slovenije
    Koichi Kobayashi Japan Gifu University
    Jonathon Dyson Australia BCRC
    Attila Vardai Hungary EMI-TUV SUD Ltd.
    Francesco Bencardino Italy University of Calabria
    Christoph Gehlen Germany CBM
    Takumi Shimomura Japan Nagaoka Univ. of Technology
    Tamon Ueda Japan Hokkaido University
    Frank Papworth Australia BCRC
    Hikaru Nakamura Japan Nagoya University
    David Fernández-Ordóñez Switzerland fib

 

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