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

Document Type : Research Paper


1 Engineering Faculty, Hakim Sabzevari University, Sabzevar, Iran

2 Instiutute for Infrastructure Engineering, Western Sydney University, Penrith, NSW 2751, Australia


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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