EFFECTS OF GROUND ROCKING ON DYNAMIC RESPONSE OF MULTISTORIED BUILDINGS DURING EARTHQUAKES

Abstract

This study investigates the consequences of neglecting the contributions of the rocking component in earthquake ground motions during response calculations of rigid base multistoried buildings. The buildings have been modeled by a simple shear-type lumped mass model and analyzed for several synthetically generated ground motions with varying characteristics. The expected values of the largest response peaks have been computed for the translational and for the rocking excitations, to evaluate the relative rocking contributions to the response. Those situations have been identified, in which the overall response is likely to receive significant contributions from the rocking component of ground motion.