Seismic Soil-Pile-Structure Interaction of Vertical Irregular Buildings with Diagonal Strut

Abstract

Irregular buildings are commonly constructed across the globe but they tend to fail during seismic events. To understand the seismic effect an attempt has been made by using a pile foundation with springs for hard, medium, and soft soils. In the current study, twelve irregular and one regular building frame have been analyzed for fixed foundations and pile foundations with springs (Spring 1, Spring 2, and Spring 3). The models have been carefully selected after an extensive literature review and both linear and non-linear analyses have been carried out, the results are obtained, tabulated, and compared to determine the effect of irregular buildings, springs, and masonry infill walls acting as a diagonal strut. Time history analysis has been done for 3 ground motion data, Imperial Valley, Northridge, and San Fernando to determine the change in spectral acceleration. Results are obtained and compared after analysis for parameters such as story displacement, story drift, story shear, overturning moment, story stiffness, spectral acceleration, SRSS, and the CQC method.