地震作用下曲线匝道桥梁伸缩缝碰撞响应研究

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摘要 Kelvin contact element was used to simulate the collision between expansion joints at the pier and the abutment. The purpose was to investigate the pounding responses of the expansion joint in a curved ramp bridge under earthquake conditions. With a multilayer interchange system project, a space dynamic model of a single curved ramp bridge was established, which includes the pier, the beam, the bearing, and the expansion joint. Nonlinear time-history analysis helped compare the different pounding responses between expansion joints at the pier and the abutment in a curved ramp bridge. Two theoretical models were used under eight types of seismic conditions. Results indicate that a curved ramp bridge without an abutment expansion joint is a favorable structure for seismic design.

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	王天利
	李青宁
	宗雪梅

关键词 ： bridge engineering, pounding response of expansion joint, nonlinear time-history analysis method, curved ramp bridge, space dynamic model, contact element

Abstract：Kelvin contact element was used to simulate the collision between expansion joints at the pier and the abutment. The purpose was to investigate the pounding responses of the expansion joint in a curved ramp bridge under earthquake conditions. With a multilayer interchange system project, a space dynamic model of a single curved ramp bridge was established, which includes the pier, the beam, the bearing, and the expansion joint. Nonlinear time-history analysis helped compare the different pounding responses between expansion joints at the pier and the abutment in a curved ramp bridge. Two theoretical models were used under eight types of seismic conditions. Results indicate that a curved ramp bridge without an abutment expansion joint is a favorable structure for seismic design.

Key words： bridge engineering pounding response of expansion joint nonlinear time-history analysis method curved ramp bridge space dynamic model contact element

收稿日期: 2012-06-14

基金资助:Supported by the National Natural Science Foundation of China(No.51078306);the Research Fund for the Doctorol Program of Higher Education of China(No.20106120110004);the Basic Research Foundation of XAUAT (No.JC1203);the Innovatory Foundation of the Grand Science and Technology of XAUAT (No.ZX0901);and the Major Subject Construction Foundation of Shaanxi Province of China(No.E01004)

通讯作者: WANG Tian-li, wangtldq@xauat.edu.cn E-mail: wangtldq@xauat.edu.cn

引用本文:

王天利, 李青宁, 宗雪梅. 地震作用下曲线匝道桥梁伸缩缝碰撞响应研究[J]. Journal of Highway and Transportation Research and Development, 2013, 7(1): 38-43.
WANG Tian-li, LI Qing-ning, ZONG Xue-mei. Pounding Responses of an Expansion Joint in a Curved Ramp Bridge under Earthquake Conditions. Journal of Highway and Transportation Research and Development, 2013, 7(1): 38-43.

链接本文:

http://manu27.magtech.com.cn/Jwk_gljtkj_en/CN/ 或 http://manu27.magtech.com.cn/Jwk_gljtkj_en/CN/Y2013/V7/I1/38

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