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Lifeline Structure Design Issues—A Case Study of Current Bridge Seismic Design and Application of Recent Seismic Design Research

Thomas R. Cooper, Mark Reno

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Abstract

The purpose of this paper is to present the major design issues addressed in the design of Terminal Separation (Replace) and I-880 Reconstruction. To address these issues Caltrans set out to combine knowledge gained from structure behavior in the Loma Prieta Earthquake and on-going laboratory testing at Universities throughout California. The result is a design criteria that attempts to ensure the structure will remain serviceable following the maximum credible earthquake. The design criteria has been reviewed by a Seismic Safety Review Panel consisting of prominent licensed Structural Engineers, University Professors and Soils Experts in California. It is anticipated that this criteria will be adopted as standard design practice for 'Lifeline' Structures.

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What this paper is about

The purpose of this paper is to present the major design issues addressed in the design of Terminal Separation (Replace) and I-880 Reconstruction. To address these issues Caltrans set out to combine knowledge gained from structure behavior in the Loma Prieta Earthquake and on-going laboratory testing at Universities throughout California. The result is a design criteria that attempts to ensure the structure will remain serviceable following the maximum credible earthquake. The design criteria has been reviewed by a Seismic Safety Review Panel consisting of prominent licensed Structural Engineers, University Professors and Soils Experts in California. It is anticipated that this criteria will be adopted as standard design practice for 'Lifeline' Structures.

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Available abstract

The purpose of this paper is to present the major design issues addressed in the design of Terminal Separation (Replace) and I-880 Reconstruction. To address these issues Caltrans set out to combine knowledge gained from structure behavior in the Loma Prieta Earthquake and on-going laboratory testing at Universities throughout California. The result is a design criteria that attempts to ensure the structure will remain serviceable following the maximum credible earthquake. The design criteria has been reviewed by a Seismic Safety Review Panel consisting of prominent licensed Structural Engineers, University Professors and Soils Experts in California. It is anticipated that this criteria will be adopted as standard design practice for 'Lifeline' Structures.

Key concepts: Engineering, Seismic analysis, Bridge (graph theory), Construction engineering, Civil engineering, Earthquake engineering, Forensic engineering, Earthquake resistant structures

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