DYNAMIC ANALYSIS OF RC REGULAR AND IRREGULAR STRUCTURES USING TIME HISTORY METHOD

Malavika Manilal, S.V Rajeeva

Abstract: Plan irregular structures situated in earthquake prone areas are very important issue to be taken into account. The present study deals with the horizontal irregularity – re-entrant corner. The paper focusses on the comparison of regular building and the reentrant corner buildings by conducting time history analysis located in seismic zone V. The time history analysis is carried out using the data of past BHUJ earthquake. The FE software ETABS v 9.7.4 has been used for the analysis. The evaluation and comparison of the regular and irregular buildings has been done using the parameters – storey displacement, storey drift, time period and base shear. Also the forces on the columns near the re-entrant corner has been studied.

Keywords: Horizontal irregularity, displacement, drifts, re-entrant corner, time history analysis, etc.

DOI: https://doi.org/10.15623/ijret.2017.0606017