Author : Suchita Hirde and Ganga Tepugade

Due to increasing population since the past few years car parking space for residential apartments in populated cities is a matter of major concern. Hence the trend has been to utilize the ground storey of the building itself for parking. Also for offices or for any other purpose such as communication hall etc. soft storeys at different levels of structure are constructed. Experience in the past earthquake has shown that a building with discontinuity in the stiffness and mass subjected to concentration of forces and deformations at the point of discontinuity which may leads to the failure of members at the junction and collapse of building. Hence in this paper attempt has been made to study performance of a building with soft storey at different level along with at GL. The nonlinear static pushover analysis is carried out. The hinges formed in the basic models are seen at performance point and to increase the performance, it is retrofitted with shear walls. Then the result obtained for basic models and retrofitted models are compared in the form of performance point and hinge formation pattern at performance point.

Keywords: Nonlinear static pushover analysis, performance point, performance level, plastic hinges, shear wall, soft storey.

Article published in International Journal of Current  Engineering  and Technology, Vol.4,No.3 (June- 2014)