|
Title |
A Comparative Study on Seismic Fragility of RC Slab Bridge Considering Aging Effect of Components
|
|
Authors |
안효준(Hyojoon An) ; 박기태(Ki-Tae Park) ; 정규산(Kyu-San Jung) ; 김유희(Yu-Hee Kim) ; 이종한(Jong-Han Lee) |
|
DOI |
https://doi.org/10.11112/jksmi.2021.25.6.177 |
|
Abstract |
In recent years, large-scale earthquake activity has occurred in Korea, and thus public interest in earthquakes is increasing. Accordingly, the importance of seismic performance management of structures is emerging. In particular, the collapse of a bridge, one of main road facilities, directly leads to many casualties. Therefore, engineers need to evaluate the seismic fragility of the bridge and prepare for the earthquake event. The service life of these bridges has been over 30 years, which requires a study on the aging effect on bridges. In this study, seismic analysis of the target RC slab bridge was performed considering the aging effects of each component of the bridge. Components of the bridge included pier and bearing, which dominate the seismic response of the bridge. The seismic performance of the bridge was evaluated using nonlinear static and dynamic analyses. In addition, the limit state and dynamic response of each component were used to evaluate the seismic fragility according to the aging of each component.
|