Seismic Response of a Three Span Continuous Bridge Isolated with And Without Friction Pendulum System

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P. Kavitha, Dr. K. Nalinaa

Abstract

Seismic response of a three span deck slab continuous bridge isolated with and without Friction pendulum bearing is studied.  Friction pendulum bearing is one type of sliding bearing which is used as an isolator in reducing seismic response of a structure.  Linear time history analysis is carried out using SAP2000 to find the seismic response of the bridge.  El Centro, Northridge, Kobe ground motion records are considered for the linear time history analysis.  The main response parameters considered are such as base shear, deck displacement and structural time period.  Also, the effectiveness of the isolation system (FPS) is compared to the bridge with non isolated condition in terms of its response parameter.

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