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Use of fibre reinforced concrete for filler beam sections – potential for structural optimization

Use of fibre reinforced concrete for filler beam sections – potential for structural optimization
Autor(en): ,
Beitrag für IABSE Symposium: Challenges for Existing and Oncoming Structures, Prague, Czech Republic, 25-27 May 2022, veröffentlicht in , S. 301-308
DOI: 10.2749/prague.2022.0301
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Fibre reinforced concrete (FRC) is a well-known solution for industrial floorings, tunnelling or specific other applications since decades and its use is extending towards a broader range of struct...
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Bibliografische Angaben

Autor(en): (Engineering Department, Structural Engineering and Composite Structures, University of Luxemburg, Luxembourg)
(Engineering Department, Structural Engineering and Composite Structures, University of Luxemburg, Luxembourg)
Medium: Tagungsbeitrag
Sprache(n): Englisch
Tagung: IABSE Symposium: Challenges for Existing and Oncoming Structures, Prague, Czech Republic, 25-27 May 2022
Veröffentlicht in:
Seite(n): 301-308 Anzahl der Seiten (im PDF): 8
Seite(n): 301-308
Anzahl der Seiten (im PDF): 8
DOI: 10.2749/prague.2022.0301
Abstrakt:

Fibre reinforced concrete (FRC) is a well-known solution for industrial floorings, tunnelling or specific other applications since decades and its use is extending towards a broader range of structures. It can act either as a complement to conventional bar reinforcement or, for specific cases, even as a substitute to it. Fibres are added to concrete firstly to enhance its tensile behaviour but can bring other substantial benefits. In particular, high-strength steel fibres have a considerable impact even when added in moderate quantities to the concrete mix, therefor with reduced additional cost.

This paper will investigate the potential of steel fibre reinforced concrete in the field of steel- concrete composite structure, a combination which is still vastly unexplored. The case of encased composite bridge sections (filler beam decks according to Eurocode 4) will be analysed by numerical simulations. The results show benefits in term of ultimate limit state, serviceability limit state as well as durability. This preliminary study serves as guidance for future experimental campaign.
Copyright: © 2022 International Association for Bridge and Structural Engineering (IABSE)
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