한국전산구조공학회:학술대회논문집 (Proceedings of the Computational Structural Engineering Institute Conference)
- 한국전산구조공학회 1999년도 봄 학술발표회 논문집
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- Pages.177-186
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- 1999
Restrainer로 보강된 교량의 지진하중에 대한 거동특성분석
Dynamic Behavior of the Bridge Retrofitted by Restrainer under Seismic Excitations
초록
Dynamic Characteristics of the bridge motions under seismic excitations are analyzed by adopting multi degree - of - freedom system to estimate the effect of restrainers. The applied restrainer is assumed to be a dead - band - system, which has the force clearance and the linear elastic force. The inelastic behaviors of pier and foundation motions are also considered in the study. It is found that the major effect of restrainer is to remarkably decrease the relative displacement between adjacent girders. It is found that restrainers placed on the parts of the bridge system rather than the whole system may increase the unseating failure.
키워드