• 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
Doniak Iria Licia Oliva Brazil ABCIC
Fernández-Ordóñez David Switzerland fib
Sennour Larbi United States The Consulting Engineers Gr., Inc.
Della Bella Bruno Italy Gruppo Centro Nord
Gasperi Antonello Italy -
Riva Paolo Italy University of Bergamo
van der Zee Pieter Belgium Ergon Belgium
Maas Stef Belgium FEBE
Fernández Gomez Jaime Spain Intemac
Kourajian Paul United States Molin Concrete Products Co.
Scalliet Matthieu France CERIB
Elliott Kim United Kingdom Precast Consultant
Lindström Gösta Sweden AB Strangbetong
Lorenz Emily United States PCI
Ozden Sevket Turkey -
Falger Micha Netherlands BAM Advies & Engineering
Vambersky N. Netherlands Corsmit Raadgevend Ingenieurs
Sasek Ladislav Czech Republic Mott MacDonald Praha s.r.o.
Skjelle Arne Norway Construction Products Association
Newby Michael New Zealand Holmes Consulting Group
Tillmann Mathias Germany FDB
Menegotto Marco Italy -
Klein-Holte Ronald Netherlands VBI Ontwikkeling BV
Derkowski Wit Poland Cracow Technical University
Bronin Sergey Russian Federation PATRIOT-Engineering
de Chefdebien André France LB7/Lesage Group
Karutz Holger Germany ad-media GmbH
Saha Sthaladipti India Larsen & Toubro Ltd
Rajala Lasse Finland Sweco Rakennetekniikka Oy
Jones George Ireland CDC Ltd
Cleland Ned United States Blue Ridge Design
Krohn Jason United States PCI - Precast/Prestressed Concrete Institute
Chastre Rodrigues Carlos Portugal Universidade Nova de Lisboa
Albert Andrej Germany Hochschule Bochum
Crisp Barry Australia Crisp Consultants PTY Ltd
Hughes Simon Australia -
Pampanin Stefano New Zealand University of Canterbury
Zhao Bin China Tongji University
Korander Olli Finland -
Seshappa Venkatesh United States Gate Precast Company
Bernardi Sébastien France Lafarge SA
Ghosh Salyendra United States S.K. Ghosh Associates, Inc.
De la Fuente Albert Spain Universitat Politècnica de Catalunya
Frank Dean A. United States Dean Frank Associates, LLC
Calavera José Spain INTEMAC
Nishiyama Minehiro Japan Kyoto University
Tsoukantas Spyros India Katerra India Pvt. Ltd
D’Arcy Thomas United States Private
El Debs Mounir Brazil Univ. Sao Paulo at Sao Carlos
Cholewicki Andrzej Poland Building Research Institute (ITB)
Kanappan Subbaiya India Larsen & Toubro Ltd
Ferreira Marcelo Brazil UFSCAR Federal University of Sao Carlos
Da Guia Lucio Válter Portugal Universidade Nova de Lisboa
Ronchetti Alessandra Italy ASSOBETON
Meuwissen Peter Germany Progress Group GmbH

  • 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
    Doniak Iria Licia Oliva Brazil ABCIC
    Della Bella Bruno Italy Gruppo Centro Nord
    van der Zee Pieter Belgium Ergon Belgium
    Maas Stef Belgium FEBE
    Marcaccioli Luciano Italy Officine Piccini SpA
    Kourajian Paul United States Molin Concrete Products Co.
    Huitric François France CERIB
    Scalliet Matthieu France CERIB
    Millen Eduardo Brazil ZMC Consultores
    Elliott Kim United Kingdom Precast Consultant
    Lindström Gösta Sweden AB Strangbetong
    Klein-Holte Ronald Netherlands VBI Ontwikkeling BV
    Derkowski Wit Poland Cracow Technical University
    Rajala Lasse Finland Sweco Rakennetekniikka Oy
    Crisp Barry Australia Crisp Consultants PTY Ltd
    Hughes Simon Australia -
    Korander Olli Finland -
    Fernández-Ordóñez David Switzerland fib
    Tsoukantas Spyros India Katerra India Pvt. Ltd
    Cholewicki Andrzej Poland Building Research Institute (ITB)
    Bronin Sergey Russian Federation PATRIOT-Engineering
    Ferreira Marcelo Brazil UFSCAR Federal University of Sao Carlos
    Meuwissen Peter Germany Progress Group GmbH

  • 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.


    Dean FrankConvener
    Dean Frank

    First name Last name Country Affiliation
    Doniak Iria Licia Oliva Brazil ABCIC
    Fernández-Ordóñez David Switzerland fib
    Della Bella Bruno Italy Gruppo Centro Nord
    Maas Stef Belgium FEBE
    Fernández Gomez Jaime Spain Intemac
    Lopez-Agüi Juan Carlos Spain IECA
    Lopez-Vidal Alejandro Spain ANDECE
    Karutz Holger Germany ad-media GmbH
    Frank Dean A. United States Dean Frank Associates, LLC
    Ronchetti Alessandra Italy ASSOBETON
    Plauska Tomas Netherlands Consolis
    Meuwissen Peter Germany Progress Group GmbH

  • 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
    Albert de la FuenteCo-Convener
    Albert de la Fuente

    First name Last name Country Affiliation
    Doniak Iria Licia Oliva Brazil ABCIC
    Fernández-Ordóñez David Switzerland fib
    Maas Stef Belgium FEBE
    Lopez-Vidal Alejandro Spain ANDECE
    Lorenz Emily United States PCI
    Nieminen Jyri Finland Sweco Finland
    Aguado de Cea Antonio Spain Universitat Politecnica de Catalunya
    Menegotto Marco Italy -
    Pampanin Stefano New Zealand University of Canterbury
    Zhao Bin China Tongji University
    Sakai Koji Japan Japan Sustainability Institute
    Do Lago Helene Paulo Brazil PhD Engenharia e Consultoria
    Hajek Petr Czech Republic Czech Technical University in Prague
    De la Fuente Albert Spain Universitat Politècnica de Catalunya
    Gálvez Ruiz Jaime Spain Universidad Politecnica de Madrid
    Frank Dean A. United States Dean Frank Associates, LLC
    Gasperi Antonello Italy -
    Plauska Tomas Netherlands Consolis
    Ronchetti Alessandra Italy ASSOBETON

  • 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.


    Juan Carlos Arroyo PorteroConvener
    Juan Carlos Arroyo Portero

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

  • 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”.


    Marcello WaimbergConvener
    Marcello Waimberg
    Ken-ichi KataCo-Convener
    Ken-ichi Kata

    First name Last name Country Affiliation
    Kalny Milan Czech Republic Pontex s.r.o. Prague
    Fernández-Ordóñez David Switzerland fib
    van der Zee Pieter Belgium Ergon Belgium
    Kata Kenichi Japan Sumitomo Mitsui Consctruction Co, Ltd.
    Briseghella Bruno Italy -
    SIM Jong Sung Korea, Republic of Hanyang University
    Han Manyop Korea, Republic of KCI (Korean Concrete Institute)
    Ariñez Fernandez Freddy Spain Universidad Politécnica de Madrid
    Garcia Gonzalez Mario Spain GRUPO PACADAR
    Matute Rubio Luis Spain IDEAM S.A.
    Petrangeli Mario Italy Mario Petrangeli & Associati
    Figueiredo Helder Spain IDEAM SA
    Salim Stephen United Kingdom Peter Brett Associates LLP
    Wheatly Robert United Kingdom Atkins
    Park Sung-Yong Korea, Republic of KICT
    VOO Yen Lei Malaysia Dura Technology Sdn. Bhd
    Baochun Chen China Fuzhou University
    El-Ashri Sameh United Arab Emirates e.Construct
    Garg Pankaj India Atkins
    Lundrof Nielsen Lars Denmark COWI
    Pogrbniak Ruslan Russian Federation Slavutich
    Nickas William United States PCI
    de Chefdebien André France LB7/Lesage Group
    Palermo Alessandro New Zealand The University of Canterbury
    Srinivasan Gopal United Kingdom Arup
    De la Fuente Albert Spain Universitat Politècnica de Catalunya
    Stucchi Fernando Rebouças Brazil ABECE/EGT
    El-Badry Mamdouh Canada University of Calgary
    Corres Peiretti Hugo Spain FHECOR Ingenieros Consultores
    Waimberg Marcelo Brazil EGT Engenharia
    Tadros Maher United States University of Nebraska-Lincoln
    Chan Yin-Wen Taiwan, Province of China National Taiwan University
    Freitas Jeovan Norway Private

  • 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.


    Stefano PampaninConvener
    Stefano Pampanin
    Spyros TsoukantasConvener
    Spyros Tsoukantas

    First name Last name Country Affiliation
    Fernández-Ordóñez David Switzerland fib
    Sennour Larbi United States The Consulting Engineers Gr., Inc.
    Kremmyda Georgia Greece NTUA
    Psycharis Ioannis Greece NTUA Nat. Technical University of Athens
    Ozden Sevket Turkey -
    Hajirasouliha Iman United Kingdom The University of Sheffield
    Lampropoulos Andreas United Kingdom University of Brighton
    Topintzis Tryfon India Katerra India Pvt. Ltd
    Savoia Marco Italy University of Bologna
    Menegotto Marco Italy -
    Derkowski Wit Poland Cracow Technical University
    Crisp Barry Australia Crisp Consultants PTY Ltd
    Pampanin Stefano New Zealand University of Canterbury
    Zhao Bin China Tongji University
    Akpinar Erkan Turkey Kocaeli University
    Ghosh Salyendra United States S.K. Ghosh Associates, Inc.
    Tsoukantas Spyros India Katerra India Pvt. Ltd
    D’Arcy Thomas United States Private
    Nishiyama Minehiro Japan Kyoto University
    Cleland Ned United States Blue Ridge Design
    Riva Paolo Italy University of Bergamo
    di Prisco Marco Italy Politecnico di Milano
    OZER CEM Turkey PEIKKO TURKEY & STATICA CONSULTING

  • 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.


    George JonesConvener
    George Jones

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

  • 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.


    Jason KrohnConvener
    Jason Krohn

    First name Last name Country Affiliation
    Lindström Gösta Sweden AB Strangbetong
    Vambersky N. Netherlands Corsmit Raadgevend Ingenieurs
    Karutz Holger Germany ad-media GmbH
    Krohn Jason United States PCI - Precast/Prestressed Concrete Institute
    Crisp Barry Australia Crisp Consultants PTY Ltd
    Hughes Simon Australia -
    Fernández-Ordóñez David Switzerland fib
    Chastre Rodrigues Carlos Portugal Universidade Nova de Lisboa
    Gasperi Antonello Italy -
    Frank Dean A. United States Dean Frank Associates, LLC
    Jones George Ireland CDC Ltd
    Menegotto Marco Italy -
    Walraven Joost Netherlands Delft University of Technology
    Ronchetti Alessandra Italy ASSOBETON

  • TG6.9 - Precast parking structures

    Besides the traffic congestion, one of the most prevalent problems in large urban agglomerations where cars are the dominant mode of transportation, vehicles spend most of the time parked. Particularly in the central areas both challenges are interrelated, since looking for parking spaces, causes congestion in circulation.

    Precast concrete is generally used in the constructions of structures and buildings facilitating urban mobility (e.g. airports, stations, bridges, etc.). Precast concrete offers important advantages: large spans by using prestressed elements, speed of erection, low environmental impact, low maintenance costs and many more.

    Despite the fact this bulletin mentions the advantages of precast concrete in parking garages several times, there is a clear need to inspire designers and architects with more examples and best practices from all over the world, considering new local needs.

    This report should encourage architects and designers to use precast (prestressed) concrete for car parking structures. The report will gather examples from all over the world showing how functional, safety and aesthetics requirements can be fulfilled by using precast concrete.

    The report shows the variety of precast concrete elements that can be used for this specific type of buildings, depending on the conceptual design and the aesthetic requirements.


    Larbi SennourConvener
    Larbi Sennour
    Iria DoniakCo-Convener
    Iria Doniak

    First name Last name Country Affiliation
    Pampanin Stefano New Zealand University of Canterbury
    Hughes Simon Australia -
    Cleland Ned United States Blue Ridge Design
    Sennour Larbi United States The Consulting Engineers Gr., Inc.
    Doniak Iria Licia Oliva Brazil ABCIC
    Derkowski Wit Poland Cracow Technical University
    Fernández-Ordóñez David Switzerland fib
    Jones George Ireland CDC Ltd
    Klein-Holte Ronald Netherlands VBI Ontwikkeling BV
    Maas Stef Belgium FEBE
    Rajala Lasse Finland Sweco Rakennetekniikka Oy
    van der Zee Pieter Belgium Ergon Belgium
    Frank Dean A. United States Dean Frank Associates, LLC
    OZER CEM Turkey PEIKKO TURKEY & STATICA CONSULTING

 

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