Finite Element Instability Analysis of the Steel Joist of Continuous Composite Beams with Flexible Shear Connectors

Subject Areas : Engineering

H Bakhshi ¹ , H.R Ronagh ²

1 - Engineering Faculty, Hakim Sabzevari University, Sabzevar, Iran
2 - Instiutute for Infrastructure Engineering, Western Sydney University, Penrith, NSW 2751, Australia

Received: 2017-03-05 Accepted : 2017-05-04 Published : 2017-06-30

Keywords: Finite element model, In-plane analysis, Out-of-plane buckling, Restricted distortional buckling, Partial shear interaction,

Abstract :

Composite steel/concrete beams may buckle in hogging bending regions. As the top flange of I-beam in that arrangement is restricted from any translational deformation and twist, the web will distort during buckling presenting a phenomenon often described as restricted distortional buckling. There are limited studies available in the literature of restricted distortional buckling of composite steel/concrete I-beams subjected to negative or hogging bending. There is none however that includes the effect of partial shear interaction. In this paper, finite element models for in-plane analysis and out-of-plane buckling of continuous composite I-beams including the effects of partial shear interaction are presented.

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