Progressive collapse analysis of 20-storey building considering composite action of floor slab

Until now, the prototypes for finite element modeling are usually practice buildings or designed by researchers themselves which means there is no uniform standard for evaluation and comparison of progressive collapse analysis results. In this paper, using software Abaqus, a 3-D model of 20-storey building considering composite action of floor slab is developed to simulate and evaluate the behavior of high-rise composite building under sudden column failure. The methodology for the modeling techniques which could improve the computational efficiency is validated by the results from a progressive collapse test. The 20-storey benchmark building considering composite action of floor slab designed to meet American seismic code has adequate load paths and redundancy to resist the spread of local collapse due to sudden column removal. The column failure in where the column size changes does not influence the behavior of structures too much. The results of progressive collapse analysis adopting 20-storey benchmark model provide important information for standardization design to prevent progressive collapse.