SEISMIC ANALYSIS OF VERTICAL IRREGULAR MULTISTORIED BUILDING

Nonika. N, Gargi Danda De

Abstract: In the present study, a 5 bays X 5 bays, 16 storied structure with provision of lift core walls and each storey height 3.2 m, having irregularity in elevation, is considered as the soft storey 3-D structure. An Irregular building is assumed to be located in all zones. Linear dynamic analysis using Response Spectrum method of the irregular building is carried out using the standard and convenient FE software package. To quantify the effect of different degrees of irregularities all the structures are analysed. In addition, the analysis carried out also enables to understand the behaviour that takes place in irregular buildings in comparison to that in regular buildings. For this the behaviour parameters considered are 1) Maximum displacement 2) Base shear, 3) Time period.

Keywords: asymmetric building, soft story, base shear, displacement, soft storey, time period.

DOI: https://doi.org/10.15623/ijret.2015.0409082