Behaviour and Design of Composite Beams Subjected to Combined Bending and Axial Forces

G. Vasdravellis, B. Uy, E. L. Tan, B. Kirkland

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Steel-concrete composite beams can often be subjected to combined bending and high axial forces. However, the moment-axial force interaction in composite beams is not covered by the current codes of practice. An experimental investigation comprising twenty-four full-scale tests was conducted recently in the University of Western Sydney, aiming to investigate the behaviour and ultimate strength of composite beams under bending and axial forces. Nonlinear finite element simulations and parametric studies complemented the tests. It was found that the moment capacity of a composite beam is reduced in most situations under simultaneous axial loading. Partial shear connection does not alter the shape of the interaction curve, but it affects the ductility of the beam and the amount of axial load transferred to the slab. Based on the experimental and numerical results, simplified design rules are proposed to account for the effect of axial loads on the bending capacity of composite beams.

Original languageEnglish
Title of host publicationComposite Construction in Steel and Concrete VII
Subtitle of host publicationProceedings of the 2013 International Conference on Composite Construction in Steel and Concrete
EditorsMark Bradford, Brian Uy
PublisherAmerican Society of Civil Engineers
Pages226-239
Number of pages14
ISBN (Electronic)9780784479735
Publication statusPublished - 2013
Event7th International Conference on Composite Construction in Steel and Concrete 2013 - QLD, Australia
Duration: 28 Jul 201331 Jul 2013

Conference

Conference7th International Conference on Composite Construction in Steel and Concrete 2013
CountryAustralia
CityQLD
Period28/07/1331/07/13

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Mechanics of Materials

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