BEHAVIOR OF BUILDING FRAMES ON SOILS OF VARYING PLASTICITY INDEX

Objective: To find the seismic behavior of building frames on soils of varying plasticity index. Method: To achieve this goal soils of various plasticity indices are selected and building frames are selected according to the Indian standard codes. The building frames are modelled and analyzed using STAAD.pro software with two different boundary conditions (I) fixed base condition (without soil structure interaction (ssi)) (ii) flexible base model considering ssi using springs. Nonlinear dynamic analyses are run from earthquake ground motion data in EduShake software for the two boundary conditions discussed. Findings: The output on the basis of lateral displacements, base shears and the interstorey drifts to the stated boundary conditions are attained and discussed. Applications: used in the dynamic analysis of building frames.