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http://dx.doi.org/10.5000/EESK.2010.14.3.001

Damage Probabilities according to the Structural Characteristics of Bridges and the Determination of Target Ductilities  

Sun, Chang-Ho (울산대학교 건설환경공학부)
Lee, Jong-Seok (울산대학교 건설환경공학부)
Kim, Ick-Hyun (울산대학교 건설환경공학부)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.14, no.3, 2010 , pp. 1-10 More about this Journal
Abstract
The target performance of a current seismic design code is to achieve collapse-prevention in order to minimize casualties. Existing structures are also being retrofitted to meet this target performance. This seismic performance seems to have been achieved in recent great overseas earthquakes, but the accompanying enormous economic loss is pointed out as a new problem. A new seismic design concept over the current target performance is required to reduce economic loss, in which a target performance is determined by the damage probability in order to control the damage levels of structures. In this study, the seismic behavior of bridges having different characteristics was investigated by nonlinear seismic analyses, and fragility curves with respect to a reference damage level were derived. Based on these results, the characteristics of target ductilities satisfying a target damage probability were investigated.
Keywords
Damage probability; Fragility curve; Target ductility; Nonlinear seismic analysis;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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