3-D nonlinear dynamic progressive collapse analysis of multi-storey steel composite frame buildings — Parametric study

A 3-dimensional finite element model built by the author was used in this paper to analyze the progressive collapse of a multi-storey steel composite frame building. The proposed model can represent the global 3-D behavior of the multi-storey building under the sudden column removal scenarios. Based on this model, parametric studies were carried out to investigate the structural behavior with variations in: strength of structural steel, strength of concrete and reinforcement mesh size. Through the parametric study, the measures to mitigate progressive collapse in the future design were recommended.