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Shock and Vibration
Volume 2 (1995), Issue 4, Pages 259-272
http://dx.doi.org/10.3233/SAV-1995-2401

Seismic Passive Control of Cable-Stayed Bridges

Hosam-Eddin M. Ali1 and Ahmed M. Abdel-Ghaffar2

1Structural Research and Analysis Corporation, Santa Monica, CA 90405, USA
2Department of Civil Engineering, University of Southern California, Los Angeles, CA 90089-2531, USA

Received 6 October 1993; Accepted 22 January 1995

Copyright © 1995 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A three-dimensional modeling procedure is proposed for cable-stayed bridges with rubber, steel, and lead energy dissipation devices. The passive control technique is investigated by considering the response of bridge models with and without energy dissipation devices. The impact of various design parameters on the seismic response of current and future bridge designs is studied. Appropriate locations and properties of the passive devices can achieve better performance for cable-stayed bridges by balancing the significant reduction in earthquake-induced forces against tolerable displacements. Proper design of passive systems can help provide solutions for retro-fitting some existing bridges.