Displacement Control Device for Base-Isolated Bridges

Author:

Constantinou M. C.1,Reinhorn A. M.1,Mokha A.2,Watson R.3

Affiliation:

1. Department of Civil Engineering, State University of New York, Buffalo, NY 14260

2. Skidmore, Owings and Merrill, San Francisco, CA 94104

3. Watson Bowman Acme Corp., Amherst, NY 14120

Abstract

An isolation system consisting of sliding Teflon bearings and displacement control devices is described for the seismic protection of bridges. The system utilizes multidirectional Teflon bearings for accommodating thermal movements and for providing the isolation mechanism and displacement control devices which exhibit bilinear behavior with controlled stiffness and characteristic strength. The devices provide rigidity for service loads below their characteristic strength and restoring force and energy dissipation for strong earthquake forces.

Publisher

SAGE Publications

Subject

Geophysics,Geotechnical Engineering and Engineering Geology

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