Research Article
Dec 1976
California's Seismic Design Criteria for Bridges
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VIEW THE REPLYPublication: Journal of the Structural Division
Volume 102, Issue 12
Abstract
An earthquake design criteria developed for bridges in California is presented. The criteria considers the proximity of maximum credible seismic events, local soil conditions, dynamic structural characteristics, ductility, and risk. The rationale for development of a flexible criteria which permits future revisions is given. The development of a map of maximum bedrock accelerations for California is examined. The development of response spectra at the bedrock level based on actual recorded events is presented. A method for considering the effects of soils at a site is developed and incorporated into the criteria. Four sets of soil curves are shown to represent the majority of bridge sites in California. The rationale behind the ductility and risk reductions for modern California bridges is described. Recent dynamic analysis applications and approximate methods of analysis are presented, as well as future directions of seismic bridge design.
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Published In
Journal of the Structural Division
Volume 102 • Issue 12 • December 1976
Pages: 2301 - 2313
Copyright
© 1976 American Society of Civil Engineers.
History
Published in print: Dec 1976
Published online: Feb 1, 2021
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Authors
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James H. Gates, M.ASCE
Sr. Bridge Engr., California Dept. of Transportation, Sacramento, Calif.
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.