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http://dx.doi.org/10.5000/EESK.2006.10.3.001

Seismic Fragility Analysis of a Cable-stayed Bridge with Energy Dissipation Devices  

Park, Won-Suk (서울대학교 교량설계핵심기술연구단)
Kim, Dong-Seok (서울대학교 지구환경시스템공학부)
Choi, Hyun-Sok (서울대학교 지구환경시스템공학부)
Koh, Hyun-Moo (서울대학교 지구환경시스템공학부)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.10, no.3, 2006 , pp. 1-11 More about this Journal
Abstract
This paper presents a seismic fragility analysis method for a cable-stayed bridge with energy dissipation devices. Model uncertainties represented by random variables include input ground motions, characteristics of energy dissipation devices and the stiffness of cable-stayed bridge. Using linear regression, we established demand models for the fragility analysis from the relationship between maximum responses and the intensity of input ground motions. For capacity models, we considered the moment and shear force of the main tower, longitudinal displacement of the girder, deviation of the stay cables tension and the local buckling of the main steel tower as the limit states for cable-stayed bridge. As a numerical example, fragility analysis results for the 2nd Jindo bridge are presented. The effect of energy dissipation devices is also briefly discussed.
Keywords
cable-stayed bridges; seismic fragility analysis; energy dissipation devices;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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