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http://dx.doi.org/10.5000/EESK.2011.15.4.013

Pounding Characteristics of a Bridge Superstructure on Rubber Bearings  

Choi, Hyoung-Suk (부산대학교 지진방재연구센터)
Kim, Jung-Woo (부산대학교 사회환경시스템공학부 토목공학)
Gong, Yeong-I ((주)정신이앤시)
Cheung, Jin-Hwan (부산대학교 사회환경시스템공학부 토목공학)
Kim, In-Tae (부산대학교 사회환경시스템공학부 토목공학)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.15, no.4, 2011 , pp. 13-21 More about this Journal
Abstract
Seismic structure pounding between adjacent superstructures may induce the destruction of pier and bridge superstructures and cause local damage that leads to the collapse of the whole bridge system. The pounding problem is related to the expansion of joints, gap distance and seismic response of the abutments. In this research, methods of the contact element approach, the linear spring model, the Kelvin-Voigt model and the Hertz model were studied to analyse the pounding characteristics. The shaking table test for a model specimen such as a bridge superstructure with elastomeric bearings was performed to evaluate the contact element approach methods. Relationships between the time history response from the numerical analysis results and the measured response from the shaking table test are compared. The experimental results were not well matched with the numerical analysis results using the existing pounding stiffness models. Therefore, in this study, coefficients are proposed to calculate the appropriate pounding stiffness ratio.
Keywords
Contact element; Linear spring model; Kelvin-voigt model; Hertz model; Shake table test; Pounding;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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