Bridge Retrofit Testing: Hinge Cable Restrainers
Publication: Journal of Structural Engineering
Volume 115, Issue 4
Abstract
During the 1971 San Fernando earthquake the superstructure hinge seats of bridges pulled apart and collapses unsued at sites of strong ground shaking. The California Department of Transportation (CalTrans) has since installed hinge diaphragm cable restrainers which inhibit the relative longitudinal displacements across the hinges. The strength, stiffness, and cyclic load‐deflection behavior of bridges which have been retrofit with longitudinal cable restrainers are determined. The properties were evaluated in a full‐scale structure experimental test program conducted at the University of California at Los Angeles. The test results show that the measured capacity or strength of the retrofitted system is slightly greater than the design yield load for the restrainers, and that failure occurs in the reinforced concrete hinge diaphragm due to deterioration resulting from combined bending and punching shear.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 115 • Issue 4 • April 1989
Pages: 920 - 934
Copyright
Copyright © 1989 ASCE.
History
Published online: Apr 1, 1989
Published in print: Apr 1989
Authors
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