EXPERIMENTAL INVESTIGATION OF SEISMIC PERFORMANCE OF BUILDING FRAME CONSIDERING SOIL STRUCTURE INTERACTION (SSI)

M. G. Kalyanshetti, A.N.Wale

Abstract: In recent decades, SSI has been given much attention in both research and practice. The two reasons are its important effect on the response of buildings in earthquakes and second is its complexity. Present experimental study aims to evaluate the seismic performance of building frames under the fixed base conditions and flexible base conditions, on scale-down experimental steel model prepared using similitude laws. Three prototype RC building frames G+3, G+5 and G+7 are considered. The building frames considered are square in plan with single bay in both directions. The time history test (El-Centro) is conducted to know the acceleration of the test model. The acceleration v/s time, velocity v/s time and displacement v\s time plots are obtained for all the accelerometers. Study reveals that SSI effect is structure specific and input motion specific. Therefore during Earthquake depending upon frequency content of motion certain classes of buildings are subjected to damage

Keywords: Soil Structure Interaction, Fixed Base, Flexible Base, Time History Etc

DOI: https://doi.org/10.15623/ijret.2018.0708007