EMPIRICAL EQUATION FOR EVALUATION OF STOREY DISPLACEMENT CONSIDERING SOIL STRUCTURE INTERACTION

M. G. Kalyanshetti, A.N.Wale

Abstract: The incorporation of soil structure interaction effect in the analysis is complex and time consuming. In this work an attempt is made to derive an empirical equation to evaluate storey displacement under the influence of SSI effect using the results of storey displacement obtained from fixed base condition. An attempt is also made to check the accuracy of empirical equation by comparing the results with the incorporation of soil structure interaction effect using elastic continuum model. The results obtained from empirical equation are compared with the elastic continuum model using application software SAP2000. Study reveals that the empirical equation is reasonably correct and can be used to estimate storey displacement of mid rise building frames considering soil structure interaction. Thus the complexity involved in the SSI modeling may be reasonably substituted using simple empirical equation.

Keywords: soil structure interaction, fixed base, flexible base, storey displacement etc.

DOI: https://doi.org/10.15623/ijret.2018.0710005