Seismic Analysis of RC Framed Structures under the Effect of Sloping Ground with Setback Configurations

From the past few decades the population of the world has been rising hastily, due to this there is scarcity of land. To overcome this drawback, structures of different configurations such as Step-back and Step back-set back has been adopted on hilly regions. Most of hilly regions in northern India where seismic activities are common, buildings are required to be constructed on sloping ground due to scarcity of plain land. Buildings situated in hilly areas are much more vulnerable to seismic environment. The buildings situated on hill slopes in earthquake prone areas are generally irregular, torsionally coupled and hence susceptible to severe damage when affected by earthquake ground motion. In this study, analysis of such building with step back and setback configurations under different ground conditions, i.e sloping ground and levelled ground, by using response spectrum method as per IS1893-2016 has been carried out. This study shows that for sloping and levelled ground, step back-setback building gives effective response when earthquake occurs.