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Title |
Experimental Study on the Seismic Behavior Simulation of Large Rail-type Expansion Joint
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Authors |
이정우(Jung-Woo Lee) ; 최은석(Eun-Suk Choi) |
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DOI |
https://doi.org/10.11112/jksmi.2022.26.5.43 |
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Keywords |
내진성능; 모듈러 신축이음장치 Seismic performance; Modular Expansion Joint |
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Abstract |
In order to evaluate the seismic performance of the modular expansion joint known for its large expansion allowance and remarkable durability, this study conducts seismic response analysis and seismic simulation test. The bridge selected for the seismic response analysis is a cable stayed bridge with main span length of 1,000m. Three artificial earthquake were generated with respect to the design response spectra of the Korean Standards (KS), AASHTO LRFD and Eurocode, and applied to the selected bridge. The seismic simulation tests reproduced the artificial earthquakes using dynamic hydraulic actuators in the longitudinal and transverse directions. The test results verified the durability and safety of the expansion joint in view of its seismic behavior since abnormal behavior or failure of the expansion joint was not observed when the artificial earthquake waves were applied in the longitudinal direction, transverse direction and both directions.
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