Analysis of Steel Multi-storey Building Subjected to Halabja Earthquake Loading

The multi-storey steel building widely used due to its light gravity loads that is very useful for regions of low soil bearing capacity. Also easy of manufacturing and erecting make it a right choice comparing with other structures. In the last years, the Halabja earthquake may classifieds as the largest base excitation that causes a rapid change in the Iraqi seismic map. Therefore, the aim of the study is to investigate the steel building behaviour under Halabja earthquake loading using a non-linear time history analysis and comparing the results with those obtained from linear static analysis depending to the ISC 1997 and the modern seismic standard ISC 2017. A non-linear analysis using a time history approach was carried out for varied steel multi-storey building models. These models were analysed and designed under dead, live, wind and seismic loads using Staad Pro V8i Software. Results shows that the Iraqi Seismic Code (ISC) 2017 is a good approach to predicting the base shear and the story drift comparing with time history analysis under Halabja earthquake loading, while the Iraqi Seismic Code (ISC) 1997 seems to be very conservative approach.