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The behaviour of transverse bar reinforcement of slim floor beams in precast floors

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Details

Original languageEnglish
Title of host publicationEurosteel 2014
Subtitle of host publication7th European Conference on Steel and Composite Structures, 10.-12.9.2014, Naples, Italy
EditorsRaffaele Landolfo, Federico Mazzolani
Place of PublicationBelgium
PublisherECCS - European Convention for Constructional Steelwork
Number of pages6
ISBN (Electronic)978-92-9147-121-8
Publication statusPublished - 2014
Externally publishedYes
Publication typeA4 Article in a conference publication

Abstract

Typical slim floor construction consists of precast hollow core slabs supported on shallow steel beams. The steel beams are contained within the depth of the floor slab and the floor beams can be detailed as either composite or bare steel beams. The joints between precast elements are reinforced with transverse steel rebars and are then filled with concrete. The transverse bars are installed through holes in the web of a special perforated steel beam profile. In this research the behaviour of the transverse rebars is studied numerically using Abaqus/Cae FEM-modelling software. The aim of this study is to investigate the effects of the transverse reinforcement on the composite beam behaviour and on the crack formation at the longitudinal interface between steel beam web and concrete. The numerical modelling of the transverse rebars and the local behaviour of rebar within the cracked area is of special interest. The numerical analysis results are compared with and validated by experimental test results carried out with similar floor beam structures. Based on the analysis results, the load paths within the slim floor construction and the effect of transverse reinforcement on floor beam behaviour are discussed.

Publication forum classification

Field of science, Statistics Finland