PUSHOVER ANALYSIS-TO STUDY SEISMIC PERFORMANCES OF VERTICAL IRREGULAR STRUCTURE

D.N.Shinde, Patil Sadhana M

Abstract: Now a day, a lot of attention is given to the make structure as earthquake resistant. Due to the earthquake huge amount of damage will takes place. To prevent this damage it is necessary to design earthquake resistant structures. So that the pushover analysis is one of the method to work out the seismic behavior of the structure. Pushover analysis is nonlinear static analysis to evaluate seismic performance of the building under the lateral loads. As a point of view of architectural consequence it is not possible to plan with regular shape. The present study represents the seismic response of the vertical irregular building frame as compared to the regular building frame. There are various types of vertical irregularities. The building frame considered for this study that are irregular in elevation. The present work is concerned with the static nonlinear analysis of G+7 RCC building frame with and without vertical irregularity by using design and analysis software ERABSv9.5.0 and both building frame design designed as per the Indian Standard 456:2000 and 1893:2002.The aim of present work is to check the seismic effect of vertical irregularity on building frame in terms of parameter lateral displacement, story drift and story shear, spectral acceleration and spectral displacement.

Keywords: Pushover Analysis, Vertical Irregularity, Story Drift, Story Shear, Lateral Displacement, Spectral Acceleration, Spectral Displacement.

DOI: https://doi.org/10.15623/ijret.2016.0506062