• COM6: Prefabrication

    COM6: Prefabrication

  • COM6: Prefabrication

    COM6: Prefabrication

Motivation

Prefabrication plays an important role in the construction of concrete structures worldwide and is evolving continuously to cope with current society’s habits and needs related to housing, commercial buildings and civil engineering works. In fact, industrialised construction may result in cost efficiency, good quality and environmentally friendly solutions, as well as the ability to adapt to market demands.

Scope and objective of technical work

The basic goal of COM6 is to enhance the progress of precast concrete, in relation to the state-of-the-art. The general scope is to promote the understanding of design concepts, technology and use of precast concrete, not only by the specialists but also by a broader audience. The implied objectives are:

  • to stimulate and coordinate R&D internationally;
  • to transfer the output into planning, practical design and construction, by means of technical reports, state–of-the-art reports, guides to good practice, handbooks;
  • to disseminate knowledge through seminars, courses, educational material;
  • to contribute to recommendations, pre-normative documents and codes within standardisation bodies.

COM6 addresses subjects that include items directly related to precast concrete, such as systems, elements, connections, production, handling, assembling, demounting, etc., as well as indirectly related items such as structural analysis, materials technology, building physics, equipment, environmental issues, sustainable development, terminology.

 

Stef MaasCommission Chair
Stef Maas
Wit DerkowskiDeputy Chair
Wit Derkowski
Larbi SennourCo Deputy Chair
Larbi Sennour

First name Last name Country Affiliation
- - - -
Iria Licia Doniak Brazil ABCIC
David Fernández-Ordóñez Switzerland fib
Larbi Sennour United States The Consulting Engineers Gr., Inc.
Bruno Della Bella Italy Gruppo Centro Nord
Antonello Gasperi Italy Consulting
Paolo Riva Italy University of Bergamo
Pieter van der Zee Belgium Ergon Belgium
Stef Maas Belgium FEBE
Jaime Fernández Gomez Spain Intemac
Paul Kourajian United States -
Matthieu Scalliet France CERIB
Andrzej Cholewicki Poland Building Research Institute (ITB)
Kim Elliott United Kingdom Precast Consultant
Gösta Lindström Sweden AB Strangbetong
Alessandra Ronchetti Italy ASSOBETON
Emily Lorenz United States PCI
Sevket Ozden Turkey OTS INSAAT Engineering & Design Co.
Micha Falger Netherlands BAM Advies & Engineering
N. Vambersky Netherlands Corsmit Raadgevend Ingenieurs
Ladislav Sasek Czech Republic Mott MacDonald Praha s.r.o.
Arne Skjelle Norway Construction Products Association
Michael Newby New Zealand Holmes Consulting Group
Mathias Tillmann Germany FDB
Marco Menegotto Italy Private
Ronald Klein-Holte Netherlands VBI Ontwikkeling BV
Wit Derkowski Poland Cracow Technical University
Sergey Bronin Russia, Federation of PATRIOT-Engineering
André de Chefdebien France LB7/Lesage Group
Subbaiya Kanappan India Larsen & Toubro Ltd
Holger Karutz Germany CPI Concrete Plant International
Sthaladipti Saha India Larsen & Toubro Ltd
Spyros Tsoukantas India KEF Infrastructure
Lasse Rajala Finland Sweco Rakennetekniikka Oy
George Jones Ireland CDC Ltd
Ned Cleland United States Blue Ridge Design
Jason Krohn United States PCI Precast/Prestressed Concrete Institute
Carlos Chastre Rodrigues Portugal Universidade Nova de Lisboa
Salyendra Ghosh United States S.K. Ghosh Associates, Inc.
Andrej Albert Germany Hochschule Bochum
Barry Crisp Australia Crisp Consultants PTY Ltd
Válter Da Guia Lucio Portugal Universidade Nova de Lisboa
Simon Hughes Australia Private
Stefano Pampanin New Zealand University of Canterbury
Venkatesh Seshappa United States Gate Precast Company
Bin Zhao China Tongji University
Sébastien Bernardi France Lafarge SA
Olli Korander Finland Private
Manfred Wicke Austria Private
Albert de la Fuente Antequera Spain Universidad Polytecnica de Catalunya
CHONG YONG ONG Malaysia -

  • TG6.1 - Prestressed hollow core floors

    During the last decade, the prestressed hollow core slab itself, the use of the HC slab, the functions of the HC floor and the knowledge on the performances of prestressed hollow core floors in various applications have evolved a great deal, which justifies a complete revision of the design recommendations.

    The objective of TG6.1 is to revise the design recommendations for precast pre-stressed hollow core floors according to today’s state of the art.

    New subjects will be added to the recommendations, based on practical needs of the stakeholders and experiences gained in several projects in which members of the task group were involved.


    Stef MaasConvener
    Stef Maas

    First name Last name Country Affiliation
    - - - -
    Iria Licia Doniak Brazil ABCIC
    Bruno Della Bella Italy Gruppo Centro Nord
    Pieter van der Zee Belgium Ergon Belgium
    Stef Maas Belgium FEBE
    Luciano Marcaccioli Italy -
    Paul Kourajian United States -
    François Huitric COM_COMMUNITY_LANG_NAME_ CERIB
    Matthieu Scalliet France CERIB
    Andrzej Cholewicki Poland Building Research Institute (ITB)
    Eduardo Millen Brazil ZMC Consultores
    Kim Elliott United Kingdom Precast Consultant
    Gösta Lindström Sweden AB Strangbetong
    Ronald Klein-Holte Netherlands VBI Ontwikkeling BV
    Wit Derkowski Poland Cracow Technical University
    Marcelo Ferreira Brazil UFSCAR Federal University of Sao Carlos
    Sergey Bronin Russia, Federation of PATRIOT-Engineering
    Spyros Tsoukantas India KEF Infrastructure
    Lasse Rajala Finland Sweco Rakennetekniikka Oy
    Barry Crisp Australia Crisp Consultants PTY Ltd
    Simon Hughes Australia Private
    Olli Korander Finland Private
    David Fernández-Ordóñez Switzerland fib
    Manfred Wicke Austria Private

  • TG6.2 - Quality control for precast concrete

    The goal of Task Group 6.2 (TG6.2) is to prepare a state-of-the-art report describing the steps, procedures and rules for the quality control of precast concrete, with respect to both production and product quality, to improve the quality of prefabricated construction.

    The report produced is intended to serve as a basic specification guide for plants and produced precast concrete elements, defining a program of quality control to monitor the production by measurement or by comparison to acceptable standards. The following topics will be included:

    • plant quality assurance program;
    • material and accessories;
    • production;
    • transport and erection;
    • recommended testing equipment;
    • quality control operations;
    • maintenance.


    f26a5b1890dc0eaf1ac664c5Convener
    Dean Frank

    First name Last name Country Affiliation
    - - - -
    Iria Licia Doniak Brazil ABCIC
    David Fernández-Ordóñez Switzerland fib
    Bruno Della Bella Italy Gruppo Centro Nord
    Stef Maas Belgium FEBE
    Jaime Fernández Gomez Spain Intemac
    Juan Carlos Lopez-Agüi Spain IECA
    Alejandro Lopez-Vidal Spain -
    Alessandra Ronchetti Italy ASSOBETON
    Holger Karutz Germany CPI Concrete Plant International
    Dean A. Frank United States PCI Precast/Prestressed Concrete Inst.

  • TG6.3 - Sustainability of structures with precast elements

    Sustainability is considered a main aspect for the future of construction therefore for prefabrication as well. COM6 and PCI have had a close cooperation since 2008 on issues of mutual interest, with the comparison of respective approaches and the development of common publications. PCI has produced various works dealing with sustainability of precast structures and is currently developing a large investigation program on this subject. The fib has also developed a large amount of work on sustainability. Presently, the work regarding sustainability is being developed in COM7.

    The first activity of TG6.3 will be the study of the most recent work developed on sustainability and in particular Life Cycle Assessment regarding structures where precast concrete elements are used. The elements developed by PCI and the fib as well as by other organisations will be shared.

    The final objective will be the drafting of recommendations regarding the study and assessment of precast concrete elements and structures, with respect to sustainability. They will cover all aspects regarding this kind of structures, from planning, design, execution, use, maintenance and remedial activities, up to dismantling, reuse and recycling.


    David Fernández-OrdóñezConvener
    David Fernández-Ordóñez

    First name Last name Country Affiliation
    - - - -
    Iria Licia Doniak Brazil ABCIC
    David Fernández-Ordóñez Switzerland fib
    Stef Maas Belgium FEBE
    Alejandro Lopez-Vidal Spain -
    Alessandra Ronchetti Italy ASSOBETON
    Emily Lorenz United States PCI
    Jyri Nieminen Finland Sweco Finland
    Fernando Rodriguez Garcia Spain -
    Antonio Aguado de Cea Spain Universitat Politecnica de Catalunya
    Marco Menegotto Italy Private
    Petr Hajek Czech Republic Czech Technical University in Prague
    Stefano Pampanin New Zealand University of Canterbury
    Bin Zhao China Tongji University
    Dean A. Frank United States PCI Precast/Prestressed Concrete Inst.
    Paulo Do Lago Helene Brazil PhD Engenharia e Consultoria
    Jaime Gálvez Ruiz Spain Universidad Politecnica de Madrid
    Albert de la Fuente Antequera Spain Universidad Polytecnica de Catalunya
    Koji Sakai Japan Japan Sustainability Institute

  • TG6.4 - Precast concrete towers for wind power generators

    Wind energy production is a growing industry. The energy produced is renewable and environmentally cleaner than most production means.

    Supports for the wind energy generators may be built with precast concrete elements, which can be a competitive solution compared to other structural systems.

    The evolution of technology for wind energy production shows a clear need for larger wind turbines and, consequently, taller towers. Experience also shows that precast solutions are even more competitive with higher towers.

    Offshore wind farms have some advantages over onshore wind farms, which explain recent investments in the area. In this case, the durability of concrete in the marine environment, compared to steel gives greater advantage to precast concrete solutions.

    TG6.4 will produce a state-of-the-art report analysing and discussing the main issues related to conception, design, detailing, construction and environmental aspects of precast structural solutions.


    f26a5b1890dc0eaf1ac664c5Convener
    Juan Carlos Arroyo Portero

    First name Last name Country Affiliation
    - - - -
    F.J. Brughuis Netherlands -
    Paulo Batista United Kingdom Abbey Pynford
    Alan Tricklebank United Kingdom -
    Juan Carlos Lancha Fernandez Spain PACADAR SA
    Carlos Ríos Frutos COM_COMMUNITY_LANG_NAME_ CALTER Ingenieria
    Ramon Alvarez Cabal Spain -
    Jürgen Grünberg Germany University Hannover
    Roger Becker United States PCI Precast/Prestressed Concrete Inst.
    Ibrahim Abd el Malik Shehata Brazil COPPE/UFRJ
    George Jones Ireland CDC Ltd
    Carlos Chastre Rodrigues Portugal Universidade Nova de Lisboa
    D.C. van Keulen Netherlands Ingenieursstudio DCK
    Juan Carlos Arroyo Portero Spain Calter Ingenieria
    David Fernández-Ordóñez Switzerland fib
    Albert de la Fuente Antequera Spain Universidad Polytecnica de Catalunya
    Stein Atle Haugerud Norway Dr. techn. Olav Olsen a.s.

  • TG6.5 - Precast concrete bridges

    Precast concrete bridges are frequently used in almost every country. Nevertheless, while it would ppear that similar practices are generally followed, the reality is that different places and cultures follow different traditions and conventions.

    The group will connect the work of both PCI and fib. PCI has developed a large amount of information and publications on precast bridges.

    The group will also connect the work of both Commission 1 “Concrete Structures” and Commission 6 “Prefabrication”. Both Commissions have been working on the subject of bridges, Commission 1 has an active task group on bridges and has recently published Bulletin 32 “Guidelines for the design of footbridges”. On the other hand, Commission 6 has published a state-of-the-art report regarding precast bridges, Bulletin 23 “Precast Concrete Bridges”.


    Hugo Corres PeirettiConvener
    Hugo Corres Peiretti

    First name Last name Country Affiliation
    - - - -
    Milan Kalny Czech Republic Pontex s.r.o. Prague
    David Fernández-Ordóñez Switzerland fib
    Pieter van der Zee Belgium Ergon Belgium
    Kenichi Kata Japan Sumitomo Mitsui Consctruction Co, Ltd.
    Mamdouh El-Badry Canada University of Calgary
    Bruno Briseghella Italy -
    Jong Sung SIM South Korea, Republic of Hanyang University
    Manyop Han South Korea, Republic of -
    Freddy Ariñez Fernandez Spain -
    Mario Garcia Gonzalez Spain -
    Luis Matute Rubio Spain -
    Mario Petrangeli Italy Mario Petrangeli & Associati
    Marcelo Waimberg Brazil EGT Engenharia
    Helder Figueiredo Spain IDEAM SA
    Stephen Salim United Kingdom Peter Brett Associates LLP
    Robert Wheatly United Kingdom Atkins
    Sung-Yong Park South Korea, Republic of KICT
    Yen Lei VOO Malaysia Dura Technology Sdn. Bhd
    Gilberto Dreas COM_COMMUNITY_LANG_NAME_ Deal srl
    Chen Baochun China Fuzhou University
    Sameh El-Ashri United Arab Emirates e.Construct
    Pankaj Garg India Atkins
    Lars Lundrof Nielsen Denmark COWI
    Ruslan Pogrbniak Russia, Federation of Slavutich
    William Nickas United States -
    André de Chefdebien France LB7/Lesage Group
    Alessandro Palermo New Zealand The University of Canterbury
    Fernando Rebouças Stucchi Brazil ABECE/EGT
    Hugo Corres Peiretti Spain FHECOR Ingenieros Consultores
    Gopal Srinivasan United Kingdom Arup
    Albert de la Fuente Antequera Spain Universidad Polytecnica de Catalunya

  • TG6.6 - Retrofitting of precast seismic structures

    Topics to be covered within the bulletin could be:

    • lessons learned and damage observation or better damage mechanisms observed in previous earthquake and associated performance of precast buildings;
    • list of typical critical or less critical vulnerabilities of this class of buildings;
    • simplified assessment methodology based on different levels of complexity, from quick screening (pre- or post-damage) without drawings to quick evaluation with drawings, to more detailed analysis and ultimately numerical analysis (computer based);
    • overarching retrofit strategies (e.g. drift control or local ductility, thus implying a combination of global vs. local intervention);
    • scenario/flowcharts of possible techniques (presented only conceptually but with practical aspects) to fulfil/achieve the targeted retrofitted performance;
    • high-level (schematic) discussion of pros and cons of each retrofit solution including cost, invasiveness, downtime and other indirect but important parameters for the owner, tenants, insurer etc.


    f26a5b1890dc0eaf1ac664c5Convener
    Stefano Pampanin
    f26a5b1890dc0eaf1ac664c5Convener
    Tsoukantas

    First name Last name Country Affiliation
    - - - -
    David Fernández-Ordóñez Switzerland fib
    Larbi Sennour United States The Consulting Engineers Gr., Inc.
    Georgia Kremmyda Greece -
    Ioannis Psycharis Greece -
    Sevket Ozden Turkey OTS INSAAT Engineering & Design Co.
    Iman Hajirasouliha United Kingdom The University of Sheffield
    Andreas Lampropoulos United Kingdom University of Brighton
    Simon Kelly Northern Ireland Creagh Concrete
    Tryfon Topintzis India KEF Infrastructure
    Marco Savola Italy University of Bologna
    Marco Menegotto Italy Private
    Wit Derkowski Poland Cracow Technical University
    Spyros Tsoukantas India KEF Infrastructure
    Salyendra Ghosh United States S.K. Ghosh Associates, Inc.
    Barry Crisp Australia Crisp Consultants PTY Ltd
    Stefano Pampanin New Zealand University of Canterbury
    Bin Zhao China Tongji University
    Erkan Akpinar Turkey Kocaeli University
    Dean A. Frank United States PCI Precast/Prestressed Concrete Inst.
    Stephanos Dritsos Greece University of Patras

  • TG6.7 - Precast concrete in tall buildings

    There has been considerable growth in the construction of tall buildings throughout the world over recent years. The variation in use of such buildings is remarkable, from the most highly specified hotels and apartments to social housing. Tall buildings use many materials to form their framework and shell, and generally mix those materials to deliver the building specified by the client. Precast concrete has been used by architects and engineers to good effect, from whole frameworks to façades, and elements mixed with structural steelwork and cast-in-place concrete. Task Group 6.7 (TG6.7) will develop a state-of-the-art bulletin that will show how precast concrete can be effectively integrated into tall buildings using modern materials and techniques, drawing on the experience and expertise that is currently available in the global concrete industry.


    f26a5b1890dc0eaf1ac664c5Convener
    Stephen Jones

    First name Last name Country Affiliation
    - - - -
    Iria Licia Doniak Brazil ABCIC
    David Fernández-Ordóñez Switzerland fib
    Akio Kasuga Japan Sumitomo Mitsui Construction Co.Ltd.
    Antonello Gasperi Italy Consulting
    Pieter van der Zee Belgium Ergon Belgium
    Jenny Burridge United Kingdom -
    Neil Pitt COM_COMMUNITY_LANG_NAME_ Explore Manufacturing
    Andrzej Cholewicki Poland Building Research Institute (ITB)
    Kim Elliott United Kingdom Precast Consultant
    Tryfon Topintzis India KEF Infrastructure
    Marco Savola Italy University of Bologna
    John Stehle United Kingdom Laing O’Rourke
    Micha Falger Netherlands BAM Advies & Engineering
    Francisco Graziano Brazil Pasqua & Graziano
    N. Vambersky Netherlands Corsmit Raadgevend Ingenieurs
    Marco Menegotto Italy Private
    Andrew Truby United Kingdom Truby Stevenson Ltd
    Wit Derkowski Poland Cracow Technical University
    Marcelo Ferreira Brazil UFSCAR Federal University of Sao Carlos
    André de Chefdebien France LB7/Lesage Group
    Sthaladipti Saha India Larsen & Toubro Ltd
    Spyros Tsoukantas India KEF Infrastructure
    Lasse Rajala Finland Sweco Rakennetekniikka Oy
    George Jones Ireland CDC Ltd
    Ned Cleland United States Blue Ridge Design
    Jason Krohn United States PCI Precast/Prestressed Concrete Institute
    Carlos Chastre Rodrigues Portugal Universidade Nova de Lisboa
    Salyendra Ghosh United States S.K. Ghosh Associates, Inc.
    D.C. van Keulen Netherlands Ingenieursstudio DCK
    Barry Crisp Australia Crisp Consultants PTY Ltd
    Válter Da Guia Lucio Portugal Universidade Nova de Lisboa
    Simon Hughes Australia Private
    Stefano Pampanin New Zealand University of Canterbury
    Venkatesh Seshappa United States Gate Precast Company
    Bin Zhao China Tongji University
    Hugo Corres Peiretti Spain FHECOR Ingenieros Consultores

  • TG6.8 - Terminology for precast concrete

    In fib bulletins, the terminology and language used was not uniformly understood by experts from various countries throughout the world.

    The objective is to create a technical report that lists the common terminology used in the prefabrication industry along with an explanation describing the terms. There may be multiple terms used with the same definition.


    f26a5b1890dc0eaf1ac664c5Convener
    Jason Krohn

    First name Last name Country Affiliation
    - - - -
    Gösta Lindström Sweden AB Strangbetong
    Alessandra Ronchetti Italy ASSOBETON
    N. Vambersky Netherlands Corsmit Raadgevend Ingenieurs
    Holger Karutz Germany CPI Concrete Plant International
    Jason Krohn United States PCI Precast/Prestressed Concrete Institute
    Carlos Chastre Rodrigues Portugal Universidade Nova de Lisboa
    Barry Crisp Australia Crisp Consultants PTY Ltd
    Simon Hughes Australia Private
    Teddy Theryo United States Florida Department of Transportation
    David Fernández-Ordóñez Switzerland fib

 

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