Seismic Response of Rc Building on Sloping Ground Using Sap2000

Abstract The structures are generally constructed on level ground; however, due to scarcity of level grounds the construction activities have been started on sloping grounds. There are two types of configuration of building on sloping ground, the one is step back and the other is step back setback. In this study, G+ 8 storeys RCC building and the ground slope varying from 15⁰, 30⁰, 45⁰, 60⁰ have been considered for the analysis. A comparison has been made with the building with and without infill wall. The modelling and analysis of the building has been done by using structure analysis tool SAP2000, to study the effect of varying height of the column in bottom storey and the effect of infill wall during the earthquake. The results have been compared with the results of the building with and without infill wall. The seismic analysis was done by linear static analysis and the response spectrum analyses have been carried out as per IS:1893 (part 1): 2002. The results were obtained in the form of top storey displacement, drift, base shear and time period. It is observed that short column is affected more during the earthquake. The analyses showed that for construction of the building on slopy ground the step back setback building configuration is suitable, along with infill and without infill wall.