Seismic response of Special Moment Resisting Frames constructed on plain and sloping ground

Abstract

Earthquakes are one of the most extinctive natural unpredictable disaster. The major reason of most of the earthquakes are the movement of Tectonic plates and excitation in the earth’s crust. It is observed that many conventional buildings have constructed without considering seismic provisions given by Indian standard codes to escape the disastrous effect of earthquakes which results into the collapse and disintegration of buildings. Therefore, the concept of earthquake resistant building design came into consideration and this is the most crucial aspect when a structure is to be designed for sloping terrain or for the hilly area. This research is carried out to examine the response of structures during the ground oscillations in terms of storey drift, base shear and storey displacement. For research work, 8storey, 12 storey and 16 storey frames are considered which are constructed on plain ground and sloping ground and 20°, 30°and 45° slopes and zone V are considered. All the frames are designed and analyzed using pushover analysis in finite element based software ETABS v-19. Response reduction factor is also calculated for several frames and compared the calculated values with the values given in IS 1893:2016(part- I).