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Dynamic Behavior of Curved Bridges under Seismic Loading  

Park, Nam-Hoi (고려대학교 공학기술연구소)
Yoon, Ki-Yong (선문대학교 토목공학과)
Kang, Young-Jong (고려대학교 사회환경시스템공학과)
Publication Information
Journal of the Korean Society of Hazard Mitigation / v.5, no.3, 2005 , pp. 11-21 More about this Journal
Abstract
This study is performed to understand complex behavior and to investigate the rational analysis methods for seismic design of the curved bridges. To analyze the curved bridges for the seismic loadings, it is used that the finite element analysis program has the 7-dof curved beam and straight beam element. The free vibration characteristics of the curved bridges are compared with the straight bridges that have span length same as the average arc length of inside and outside girder of those. For the same case, the dynamic behavior is compared under seismic loadings. It is found that regular bridges classified by AASHTO are analyzed as if those were straight. To investigate the dynamic behavior of general curved bridges under seismic loading, the seismic loading directions and the subtended angle of curved bridges are varied.
Keywords
Horizontally Curved Bridges; Seismic Design; Seismic Loading; Dynamic Behavior; 7-dof Curved Beam; Time history method;
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