Percentile influence of beam column cross section design on progressive collapse potential of low-rise reinforced concrete framed structure (original) (raw)

The aim of this study is to investigate the behavior of low-rise, four-story RC framed structures when subjected to abnormal loads, specifically missing column scenarios. The study uses more than 20 unique models with varying beam and column cross sections and designs them for India's four seismic zones (Z2, Z3, Z4, and Z5) in accordance with IS 456–2000 and IS 1893–2016 using FEM based ETABS V.17 Software. The study evaluates the potential for progressive collapse of structures in all three possible cases of column removal, as per the GSA (2016) Guidelines, using the linear static analysis approach. The investigation aims to determine the progressive collapse potential of low-rise reinforced concrete framed structures designed for Indian seismic zones, and the effect of different beam and column cross sections on the structures' progressive collapse potential. The study finds that structures designed for high seismic zones (seismic zone 5 with high beam column cross section...