• COM5: Reinforcements

    COM5: Reinforcements

  • COM5: Reinforcements

    COM5: Reinforcements

Motivation

fib Commission 5 (COM5) gathers a balanced mix of experts coming from various fields (academics, owners, suppliers, government agencies and testing laboratories) who are volunteering their work into several task groups aiming to provide knowledge and information to students and the professional workforce for the best use of concrete.

Scope and objective of technical work

The scope of COM5 is to promote the technology for reinforcing and prestressing materials and systems and to improve their quality. This includes aspects from design, production, testing, up to the installation and final use of these materials and systems. The scope also includes maintaining and improving dialogue between producers, specifiers, and users of these materials and systems.

Finally, COM5 encourages new research and developments within its scope.

 

Theodore L. NeffCommission Chair
Theodore L. Neff
Hermann WeiherDeputy Chair
Hermann Weiher

First name Last name Country Affiliation
Ganz Hans Rudolf Switzerland Ganz Consulting
Bastien Josée Canada University Laval
Kasuga Akio Japan Sumitomo Mitsui Construction Co.Ltd.
Nürnberger Ulf Germany University of Stuttgart
Hosoi Kiyotaka Japan Shinko Wire Company Ltd
Almeida Pedro A. de Oliveira Brazil Sao Paulo University
Winkler Niklaus Switzerland Nik Engineering
Hagberg Thore Norway Dr.Ing. Thore Hagberg A.S.
Krauser Larry United States General Technologies, Inc.
Ciccone Tommaso Italy TENSA (Tensacciai s.r.l.)
Brand Werner Germany DYWIDAG-Systems International
Caballero Antonio Switzerland BBR VT international Ltd.
Hayek Carol United States CCL
Ramirez Guillermo Switzerland VSL International Ltd
Poston Randall United States Pivot Engineers
Gläser Christian Germany DYWIDAG-Systems International
Theryo Teddy United States Florida Department of Transportation
Elices Calafat Manuel Spain Universidad Politecnica de Madrid
Piekarski Jan Poland BBR Polska Sp. z o. o.
Fernández-Ordóñez David Switzerland fib
Neff Theodore United States General Technologies, Inc.
Neff Theodore United States General Technologies, Inc.
Gálvez Ruiz Jaime Spain Universidad Politecnica de Madrid
Gregory Paul United Kingdom MPA - The Concrete Centre
Winkler Jan Denmark Atkins
Mutsuyoshi Hiroshi Japan Saitama University
Weiher Hermann Germany Matrics Engineering GmbH
Collins James United Kingdom Ramboll
Gutsch Alex Germany TU Braunschweig
Kido Toshiro Japan Sumitomo (SEI) Steel Wire Corp.
Matthys Stijn Belgium Ghent University
Piron Josiane Belgium Ministry of Equip. and Transport
Zivanovic Ivica France Freyssinet
Xu Dong China Tongji University
Valentini Vittorio Italy Siderurgica Latina Martin S.p.A.
Johnson Tony United States PTI

  • TG5.1 - FRP Reinforcement for concrete structures

    The main objectives of TG5.1 are:

    • The elaboration of design guidelines in accordance with the design format of the fib Model Code for Concrete Structures 2010 (“fib MC2010”) and Eurocode 2.
    • Link with other initiatives regarding material testing and characterisation & development of standard test methods.
    • Participation in the international forum in the field of advanced composite reinforcement, stimulating the use of FRP for concrete structures.
    • Guidance on practical execution of concrete structures reinforced/prestressed/strengthened by FRP.


    Stijn MatthysConvener
    Stijn Matthys

    First name Last name Country Affiliation
    Balázs György L. Hungary Budapest Univ. of Techn. & Economics
    Ceroni Francesca Italy Universitá degli Studi di Napoli
    Denton Steve United Kingdom WSP Parsons Brinckerhoff Ltd
    Pantazopoulou Voula (S.J.) Canada The Lassonde Faculty of Engineering, York University
    Nigro Emidio Italy Università degli Studi di Napoli Federico II
    Serbescu Andreea United Kingdom University of Sheffield+ Amey consulting
    Bournas Dionysios United Kingdom Nottingham University
    Barris Cristina Spain University of Girona
    Carvelli Valter Italy Politecnico di Milano
    D’Antino Tommaso Greece University of Patras
    Ferrier Emmanuel France Université Lyon 1
    Gallego Juan Manuel Spain -
    Garcia Lopez Reyes United Kingdom School of Engineering, University of Warwick
    Haffke Marcin Germany TU Kaiserslautern
    Kisicek Tomislav Croatia University of Zagreb
    Mias Oller Cristina Spain University of Girona
    Nistico Nicola Italy Sapienza Università di Roma
    Proia Alessandro Belgium Ghent University
    Schmitt Andreas Germany TU Kaiserslautern
    de Sena Cruz José Manuel Portugal University of Minho
    Donchev Ted United Kingdom Kingston University
    Tamuzs Vitauts Latvia University of Latvia
    Taranu Nicolae Romania TU “Gh. Asachi” Iasi
    Pahn Matthias Germany University of Kaiserslautern
    Scharfenberg Eva Germany FIREP Rebar Technology GmbH
    Esposito Francesco Italy ATP s.r.l
    Cerny Miroslav Czech Republic Czech Technical University in Prague
    Finckh Wolfgang Germany Wayss & Freytag Ingenieurbau
    Karantzikis Michael Greece FYFE EUROPE S.A.
    Kolyvas Christoforos Greece FYFE EUROPE S.A.
    Kurth Martin Germany RWTH Aachen University
    Sas Gabriel Sweden Lulea University of Technology/NORUT
    Shield Carol United States University of Minnesota
    Vasseur Lander Belgium Bureau d’études Vasseur sprl
    Burgoyne Chris United Kingdom Univ. of Cambridge
    Gremel Douglas United States Owens Corning
    Hamelin Patrice France Université Lyon
    Manfredi Gaetano Italy Universita di Napoli Federico II
    Nanni Antonio Italy Univ. degli Studi di Napoli Federico II
    Niedermeier Roland Germany Technische Universität München
    Pisani Marco Italy Politecnico di Milano
    Rizkalla Sami United States North Carolina State Univ.
    Teng Jin-Guang China Hong Kong Polytechnic University
    Thorenfeldt Erik Norway SINTEF Building & Infrastructure
    Zehetmaier Gerhard Germany Bilfinger Berger
    Juvandes L. Portugal Universidade do Porto
    de Lorenzis Laura Italy University of Salento
    Täljsten Björn Sweden Luleå University of Technology
    Shave Jonathan United Kingdom Parsons Brinckerhoff Ltd.
    Harik I.E. United States University of Kentucky
    Koch Ryan United States Hughes Brothers
    Palmieri Aniello Belgium Superior Products Europe
    Ibell T.J. United Kingdom University of Bath
    Meier Urs Switzerland EAWAG-EMPA
    Schürch Marc Switzerland FiReP International AG
    Vervuurt Adri Netherlands TNO
    Tadros Maher United States University of Nebraska-Lincoln
    Pecce Maria Rosaria Italy Università del Sannio
    Hordijk Dick Netherlands Adviesbureau Hageman
    Prota Andrea Italy Universita di Napoli Federico II
    Berset Thierry Switzerland SIKA Services AG
    Curbach Manfred Germany Technische Univ. Dresden
    Füllsack-Köditz Raimo Germany Halfen Group
    Hegger Josef Germany RWTH Aachen
    Pilakoutas Kypros United Kingdom University of Sheffield
    Zilch Konrad Germany -
    Bilotta Antonio Italy University of Naples Federico II
    Borchert Kurt Germany Jacobs Projects GmbH
    Ospina Carlos United States BergerABAM
    Smith Scott Australia The University of Adelaide
    Thorhallsson Eythor Iceland Reykjavik University
    Weber André Germany Schöck Bauteile GmbH
    Di Benedetti Matteo United Kingdom University of Sheffield
    Cholostiakow Szymon United Kingdom University of Sheffield
    Triantafillou Thanasis Greece University of Patras
    Matthews Stuart United Kingdom Consulting
    Oller Ibars Eva Spain Technical University of Catalonia
    Fernández-Ordóñez David Switzerland fib
    Torres Lluis Spain University of Girona
    Kriekemans B. Belgium Fortius
    Sólyom Sándor Hungary Budapest Univ. of Techn. & Economics
    Mellier Erik France Freyssinet International & Cie
    Buchin Roulie Vanessa Switzerland VSL INTERNATIONAL
    Monti Giorgio Italy Sapienza Università di Roma
    Gribniak Viktor Lithuania Vilnius Gediminas Technical University
    Ueda Tamon China Shenzhen University
    Matthys Stijn Belgium Ghent University
    Borosnyói Adorján Hungary Budapest Univ. Technology
    Kotynia Renata Poland Lodz University of Technology
    Raicic Vesna United Kingdom University of Bath
    Veljkovic Ana Italy Politecnico di Milano
    Chen J. F. United Kingdom Edinburgh University
    Vago Giuseppe Italy ATP s.r.l
    Guadagnini Maurizio United Kingdom University of Sheffield
    Rousakis Theodoros Greece Democritus University of Thrace
    Koutas Lampros Greece University of Thessaly
    Winistörfer Andreas Switzerland Carbo Link
    Barros Joaquim Portugal Universidade do Minho
    Thermou Georgia United Kingdom University of Nottingham
    Verbaten Mark Netherlands ABT bv
    Zheng Yu China -
    Nagy-György Tamás Romania Politehnica Univ. of Timisoara
    Del Vecchio Ciro Italy University of Naples Federico II
    Del Zoppo Marta Italy University of Naples Federico II

  • TG5.2 - Reinforcing steels and systems

    fib Task Group 5.2 (TG5.2) will consider all aspects related to reinforcing steels and systems from design to manufacturing, testing and final installation, use and maintenance. It will initially address several topics considered high priority. TG5.2 will create sub-groups to work on particular subjects.

    Areas of interest:

    • review of the reinforcing steel grades available on the market (strength, ductility, bond, fatigue, durability properties) and relevant concrete structure design codes;
    • manual for reinforcing materials and systems;
    • technical report on fabrication of reinforcement;
    • state of the knowledge on the bond properties of reinforcing steels;
    • state of the knowledge on the fatigue resistance properties of reinforcing steels.


    Paul GregoryConvener
    Paul Gregory
    Ladin CamciCo-Convener
    Ladin Camci

    First name Last name Country Affiliation
    Ganz Hans Rudolf Switzerland Ganz Consulting
    Nürnberger Ulf Germany University of Stuttgart
    Hagberg Thore Norway Dr.Ing. Thore Hagberg A.S.
    McCabe Steven United States Nat. Inst. of Standards & Technologies
    Elices Calafat Manuel Spain Universidad Politecnica de Madrid
    Fernández-Ordóñez David Switzerland fib
    Krauser Larry United States General Technologies, Inc.
    Burridge Jenny United Kingdom The Concrete Centre
    Cairns John United Kingdom Heriot-Watt University
    Gregory Paul United Kingdom MPA - The Concrete Centre
    Piron Josiane Belgium Ministry of Equip. and Transport
    Camci Ladin United Kingdom CARES
    Clark Gordon United Kingdom Consultant
    Eligehausen Rolf Germany IWB, Universität Stuttgart
    Goodchild Charles United Kingdom The Concrete Centre
    Gustafson David United States CRSI - Concrete Reinforcing Steel
    Junge Sven Germany ISB Institut für Stahlbetonbewehrung e.V.
    Keogh Dennis United Kingdom Laing O’Rourke Infrastructure Services
    Truby Andrew United Kingdom Truby Stevenson Ltd

  • TG5.3 - Prestressing materials and systems

    Since Eugène Freyssinet’s first of use high-strength steel wire for prestressing concrete in the late 1920s, there have been many changes in prestressing systems used around the world. Current systems bear little resemblance to many of the older methods used in the past. Designers and contractors need information regarding these historical practices and materials to evaluate existing prestressed concrete in need of repair and to determine effective strategies to extend service life and enhance performance. Further, as new technologies are developed, they are often used in some countries but not in others.

    Task Group 5.3 (TG5.3) has established two goals: 1) to develop a state-of-the-art report describing the evolution and development of prestressing systems and to identify recent innovations and advances, and 2) to develop a new bulletin that provides recommendations for the installation of post-tensioning systems.


    Tommaso CicconeConvener
    Tommaso Ciccone

    First name Last name Country Affiliation
    Ramirez Guillermo Switzerland VSL International Ltd
    Fernández-Ordóñez David Switzerland fib
    Neff Theodore United States General Technologies, Inc.
    Neff Theodore United States General Technologies, Inc.
    Ciccone Tommaso Italy TENSA (Tensacciai s.r.l.)
    Collins James United Kingdom Ramboll
    Kido Toshiro Japan Sumitomo (SEI) Steel Wire Corp.
    Zivanovic Ivica France Freyssinet
    Castiglioni di Caronno Andrea Italy TENSA (Tensacciai s.r.l.)
    Gläser Christian Germany DYWIDAG-Systems International
    Hayek Carol United States CCL
    Hosoi Kiyotaka Japan Shinko Wire Company Ltd
    Ikehata Shinya Japan Central Nippon Expressway Cie Ltd
    Krauser Larry United States General Technologies, Inc.

  • TG5.4 - Recommendations for ground anchor systems

    The overall motivation of Task Group 5.4 (TG5.4) is to establish a modern recommendation for the qualification of ground anchor systems.

    The main objective of TG5.4 is to prepare a bulletin entitled “Recommendation for ground anchor systems” based on and updating earlier documents such as the “Recommendations for the design and construction of ground anchors”, 1996. The recommendations will include significant content for qualification of ground anchor systems covering prestressed permanent and temporary anchors.


    Hermann WeiherConvener
    Hermann Weiher

    First name Last name Country Affiliation
    Nürnberger Ulf Germany University of Stuttgart
    Ripoll Garcia-Mansilla Javier Spain Ripoll Consulting de Ing.
    Gaucherand Cyril France Freyssinet
    Ericson Gosta Sweden Sweco VBB AB
    Sinclair Mark Australia Structural Systems (Civil) Pty Ltd
    Fernández-Ordóñez David Switzerland fib
    Neff Theodore United States General Technologies, Inc.
    Neff Theodore United States General Technologies, Inc.
    Irvin Chris United Kingdom DYWIDAG-SYSTEMS INTERNATIONAL Ltd.
    Ryser Matthias Germany Dr. Vollenweider AG
    Weiher Hermann Germany Matrics Engineering GmbH
    Kido Toshiro Japan Sumitomo (SEI) Steel Wire Corp.
    Egger Philipp Switzerland VSL International LTD
    Manshadi Behzad Switzerland BBR VT International Ltd
    Wild Matthias Germany Technical University of München
    Gnägi Adrian Switzerland VSL International Ltd.

  • TG5.5 - Cables for cable-supported bridges

    fib Bulletin 30, "Acceptance of stay cable systems using prestressing steels", was published in 2005. Since then, extradosed bridges, a bridge typology that is placed between cable-stayed bridges and ordinary girder bridges, became more and more popular. While extradosed bridges were already known at the time of publication of Bulletin 30, the knowledge was not enough to include this typology into the document.

    Additionally, after more than seven years, there is a general request from system suppliers, designers and authorities to update the current document so new stay cable system/solutions, applications, acquired knowledge, installation methods, etc. are discussed and included in a new document version.

    The goal of Task Group 5.5 (TG5.5) is to update the current recommendation document so extradosed bridges are fully included (e.g. loading over SLS design, loading over ULS design, design & detailing, construction, initial type testing, etc.).


    Antonio CaballeroConvener
    Antonio Caballero
    Hiroshi MutsuyoshiConvener
    Hiroshi Mutsuyoshi

    First name Last name Country Affiliation
    Bastien Josée Canada University Laval
    Kasuga Akio Japan Sumitomo Mitsui Construction Co.Ltd.
    Fischer Gregor Denmark Technical University of Denmark
    Hosoi Kiyotaka Japan Shinko Wire Company Ltd
    Ohashi Gaku Japan Central Nippon Expressway Company Ltd
    Georgakis Christos Denmark Technical University of Denmark
    Wild Matthias Germany Technical University of München
    Tejera Adrian Spain Tycsa PSC Spain
    Kuilboer Cor Netherlands Private
    Goodyear David United States T.Y. Lin International
    Soule Ben United States International Bridge Technologies, Inc
    Ciccone Tommaso Italy TENSA (Tensacciai s.r.l.)
    Brand Werner Germany DYWIDAG-Systems International
    Caballero Antonio Switzerland BBR VT international Ltd.
    Annan Rachid Switzerland VSL International LTD
    Meiss Kathy Germany Ingenieurgesellschaft Meiss Grauer Holl mbh & Co. KG
    Gläser Christian Germany DYWIDAG-Systems International
    Theryo Teddy United States Florida Department of Transportation
    Almeida Pedro A. de Oliveira Brazil Sao Paulo University
    Piekarski Jan Poland BBR Polska Sp. z o. o.
    Fernández-Ordóñez David Switzerland fib
    Neff Theodore United States General Technologies, Inc.
    Neff Theodore United States General Technologies, Inc.
    Mellier Erik France Freyssinet International & Cie
    Winkler Jan Denmark Atkins
    Mutsuyoshi Hiroshi Japan Saitama University
    Weiher Hermann Germany Matrics Engineering GmbH
    Gutsch Alex Germany TU Braunschweig
    Kido Toshiro Japan Sumitomo (SEI) Steel Wire Corp.
    Ikehata Shinya Japan Central Nippon Expressway Cie Ltd
    Curran Peter United Kingdom Ramboll UK

  • TG5.6 - Behaviour under cryogenic conditions

    The growing worldwide use of liquefied natural gas (LNG) has seen the development of significant LNG storage tank facilities for LNG exporters and importers. These massive storage tanks are essential for receiving and safe storage of the liquid gas. Despite this, the last FIP publication on prestressed concrete under cryogenic conditions dates back to 1988 (draft state-of-the-art report – Cryogenic behavior of materials for prestressed concrete).

    The main goal of fib Task Group 5.6 (TG5.6) is the development of a new fib recommendation document in which key aspects in concrete prestressed LNG tanks such as design recommendations, execution, system and material testing, control/monitoring, etc., are covered.


    Antonio CaballeroConvener
    Antonio Caballero
    Alex W. GutschConvener
    Alex W. Gutsch

    First name Last name Country Affiliation
    Bastien Josée Canada University Laval
    Wild Matthias Germany Technical University of München
    Tejera Adrian Spain Tycsa PSC Spain
    Zivanovic Ivica France Freyssinet
    Rötzer Josef Germany DYWIDAG
    Gnägi Adrian Switzerland VSL International Ltd.
    Caballero Antonio Switzerland BBR VT international Ltd.
    Traute Markus Germany DYWIDAG-Systems International
    Gläser Christian Germany DYWIDAG-Systems International
    Elices Calafat Manuel Spain Universidad Politecnica de Madrid
    Nishizaki Takeyoshi Japan Osaka Gas Company
    Benovic Matus Slovakia Industrial Steel Wires EMEA
    Fernández-Ordóñez David Switzerland fib
    Krauser Larry United States General Technologies, Inc.
    Sakai Yasuhiro Japan Obayashi Corporation
    Gutsch Alex Germany TU Braunschweig
    Kido Toshiro Japan Sumitomo (SEI) Steel Wire Corp.
    Vandewalle Lucie Belgium KULeuven
    Freitas Jeovan Norway Private

  • TG5.8 - External tendons for bridges

    As a result of durability issues with bonded internal tendons, external tendons in bridge construction have become more popular in several countries. External tendons are now widely used throughout the world. While many of the technological aspects of external tendons look similar to internal bonded tendons, there are significant differences between the two, e.g. in terms of corrosion protection, tendon deviation blocks, tendon curvature and lay out, tendon replaceability, tendon force transfer to the structure, and ultimate strength. These differences merit the amendment of existing specifications, or the preparation of new specifications for external tendon design, testing, installation, duct durability, corrosion protection, maintenance and eventual replacement.

    The goal of Task Group 5.8 (TG5.8) is to prepare a technical report on the applications of external tendons in bridges from different countries and focusing on system related topics with minor implementation of design aspects of the structure using external tendons.


    Christian GläserConvener
    Christian Gläser
    Teddy S. TheryoConvener
    Teddy S. Theryo

    First name Last name Country Affiliation
    Bastien Josée Canada University Laval
    Kasuga Akio Japan Sumitomo Mitsui Construction Co.Ltd.
    Theryo Teddy United States Florida Department of Transportation
    Turmo Coderque José Spain Universitat Politecnica de Catalunya
    Boitel Pierre France Freyssinet
    Kuilboer Cor Netherlands Private
    Matt Peter Switzerland Private
    Ramirez Guillermo Switzerland VSL International Ltd
    Zhu Wanxu China Liuzhou OVM Machinery Co.
    Gläser Christian Germany DYWIDAG-Systems International
    Xu Dong China Tongji University
    Piekarski Jan Poland BBR Polska Sp. z o. o.
    Ganz Hans Rudolf Switzerland Ganz Consulting
    Fernández-Ordóñez David Switzerland fib
    Krauser Larry United States General Technologies, Inc.
    Weiher Hermann Germany Matrics Engineering GmbH
    Kido Toshiro Japan Sumitomo (SEI) Steel Wire Corp.

  • TG5.9 - Sulphates and sulphide limits in grout and concrete for prestressing

    Over recent years some significant work has gone into improving grouting specifications around the world. Of particular concern is that historically there have been limits set for the Sulphate and Sulphide Ion content in some countries (in EN and ISO) but not in others. Further, high sulphate levels in grout have been identified as a contributing factor in premature corrosion observed on several post-tensioned bridges in the United States. After considerable searching there appears to be no available published relevant research to support current limits. Further there is increased pressure to use slag cements, for reasons of sustainability, which cannot pass the current limitations. There is clear justification to form a scientific research basis for any limits both in grout and in concrete for pretensioned prestressed applications.

    fib can collect the current State-of-the-Art of such limits and any background research. It is also proposed to initiate an appropriate research project. This will inform either a Technical Report or Research Papers for publication, as well as informing possible revisions of National and International standards.


    Carmen AndradeConvener
    Carmen Andrade

    First name Last name Country Affiliation
    Andrade Carmen Spain -
    Fernández-Ordóñez David Switzerland fib

 

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