Author : Halkude S.A, Kalyanshetti M.G and Kadlag V. A

Generally structures are analyzed for its structural behaviour assuming base condition as a fixed base. However it is observed that due to assumption of fixity at base condition, the results obtained are very much different from actual condition. In view of the above, while evaluating seismic structural behavior, the effect of soil structure interaction is of paramount importance. Therefore, in this study various structures are analyzed for fixed base as well as for various flexible base conditions, which are categorized as medium soil and soft soil. For analysis purpose in this study structures are considered from G+5 stories to G+25 stories at an interval of 5 stories. While assessing the seismic behaviour of structure, the pushover analysis is employed and accordingly its effect in the form of failure hinge formulation is studied.

Keywords: Pushover analysis, Soil structure interaction, Flexible soil, Hinge failure, Non-linear static method.

Article published in International Journal of Current Engineering and Technology, Vol.5, No.1 (Feb-2015)