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Framework for Risk-Targeted Performance-Based Seismic Design of Ordinary Standard Bridges.

Authors :
Deb, Angshuman
Zha, Alex L.
Caamaño-Withall, Zachary A.
Conte, Joel P.
Restrepo, José I.
Source :
Journal of Structural Engineering. Jul2023, Vol. 149 Issue 7, p1-12. 12p.
Publication Year :
2023

Abstract

This paper presents the analytical formulation and computational implementation of a conceptual probabilistic performance-based seismic design (PBSD) framework for ordinary standard bridge (OSB) structures. An updated probabilistic performance-based earthquake engineering (PBEE) assessment methodology is used for the parametric performance assessment of four distinct OSBs in California to investigate the effects of varying key structural design parameters over a primary design parameter space on risk-based structural performance measures. The dire need for a systematic PBSD framework for OSBs is illustrated given the significant variability in risk-based performance levels exhibited by these traditionally designed testbed OSBs. A PBSD methodology involving the design of the bridge piers is proposed wherein a risk-based feasible design domain in the primary design parameter space is identified which facilitates the risk-informed design/decision making process in the face of uncertainty. Sensitivities of risk-based feasible design domains compared with other (secondary) design variables and with the method employed for damage hazard assessment are investigated. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
07339445
Volume :
149
Issue :
7
Database :
Academic Search Index
Journal :
Journal of Structural Engineering
Publication Type :
Academic Journal
Accession number :
163761099
Full Text :
https://doi.org/10.1061/JSENDH.STENG-10477