Abstract
Reinforced concrete flat plates are commonly employed due to their structural efficiency; however, have been shown to be susceptible to progressive collapse as evidenced by structural failures stemming from slab punching. Consequently, many building codes and design guides now require progressive collapse specific analyses and design requirements. This paper is focused on demonstrating the suitability of an alternative nonlinear finite element analysis procedure based on the formulations of the Disturbed Stress Field Model, and employing low-cost thick-shell finite element modelling procedures for assessing the post-punching performance of flat plate systems. Isolated slab-column connection assemblies, as well as multi-bay substructures, were modelled using static and dynamic analysis procedures and the numerical results are compared with experimental data presented in the literature.
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