ISOLATION PERFORMANCE STUDY OF THE HONGKONG-ZHUHAI-MACAO BRIDGE ENGINEERING

摘要：

　　This paper investigates the isolation performances of bid DB(0)2 section of the Hong Kong-Zhuhai-Macao bridge.The navigable cable-stayed bridge and the non-navigable steel-concrete continuous girder bridge in the high-pier and low-pier regions are taken as aa illustration.The finite element models with aseismatic bearings and isolated bearings are established and the seismic time-history analysis under P2 and P3 earthquake is carried out.The non-linear of LRB,HDR and FPB isolated bearings and the pile-soil interaction effect are simulated by bilinear spring elements and layered Winkler soil springs model,respectively.The results show that the bridge structure with isolated bearings is more flexible by extending vibration period.The dissipated hysteric energy can effectively reduce the earthquake energy and the response of the structure; Subject to P3 level earthquake,most piers of the bridge are in basic elastic state.Subject to F2 level earthquake,the bridge is in perfectly elastic state.The isolated effect of the continuous girder bridge with isolated bearings is superior to that of the cable-stayed bridge with the consolidation of tower and beam.

关键词： Hong Kong-Zhuhai-Macao bridge isolation performances LRB isolation system HDR isolation system HRB isolation system

作者: Hongping Zhu Chulong Chen Aizhu Zhu Yong Yuan

作者单位: School of Civil Engineering and Mechanics Huazhong University of Science and Technology, Wuhan, Hubei 430074, P.R.China

会议类型: 国际会议

会议名称: The Twelfth International Symposium on Structural Engineering (第十二届结构工程国际研讨会)

会议地点: 武汉

会议语种:英文

页码: 191-201

在线出版日期: 2012-11-17（万方平台首次上网日期，不代表论文的发表时间）