The Behavior of Energy Dissipation Devices and Seismic Isolation During Near-Fault Ground Motions

Abstract

Directivity produces strong motion records with longer speed pulses, a large magnitude, and significant displacements in the vicinity of the source. When subjected to this kind of earthquake, buildings should be able to withstand substantial deformations and quickly release massive amounts of energy. Recently, solutions for power dissipation and seismic design have been developed to mitigate the generally destructive effects of earthquakes. Regarding these devices' ability to stop near-fault earthquakes, there are differing views. This study's goal is to quantitatively analyse how two alternative seismic safety systems react to earthquakes that happen close to a fault. The peculiar features of near-fault earthquakes give a useful set of data for the development of numerical models. The heat removal techniques used were poroelastic dampers and steel helical springs in a hybrid separation system, as well as buckling-restricted braces. Seismic safety devices are used in the nonlinear evaluation of fundamental models. The findings demonstrate that more than one ground motion characteristic cannot adequately describe the responses of the two buildings tested with protective devices. Numerous responder metrics exhibit notable variation.