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Nonlinear Time History Analysis of Long Span Cable-Stayed Bridge Considering Multi-Support Excitation  

Kim, Jin-Il (성균관대학교 초고층장대교량학과)
Ha, Su-Bok (성균관대학교 초고층장대교량학과)
Sung, Dae-Jung (성균관대학교 건설환경시스템공학과)
Kim, Mun-Young (성균관대학교 건설환경시스템공학과)
Shin, Hyun-Mock (성균관대학교 건설환경시스템공학과)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.24, no.6, 2011 , pp. 655-662 More about this Journal
Abstract
For analyzing seismic performance of long-span bridge for multi-support excitation and preparing technically and efficiently for a variety of design demands, the new module on multiple excitation was built in a reliable non-linear analysis program(RCAHEST) by using Influence Line Method, and the study on structures was performed previously. Also, the result of the analysis through RCAHEST was compared and verified with commercial finite element analysis program SAP2000 by using the feature of Multi-Support Excitation. From these results, nonlinear time history analysis considering multi-support excitation was studied after designing FE model of Incheon cable-stayed bridge. It was proved that the maximum response of horizontal displacement decreased as the time delay was increasing at all nodes of bridge. And then the serviceability of analysis model was evaluated by performing ultimate analysis under changes in maximum acceleration of seismic load data.
Keywords
Incheon bridge; multi-support excitation; influence line method; nonlinear time history analysis;
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Times Cited By KSCI : 2  (Citation Analysis)
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