THE STRENGTHENING OF ZINI BRIDGE WITH EXTERNAL PRESTRESSING TENDONS

摘要：

According to the inspecting and testing result of the deteriorations on Zini Bridge, the load bearing capacity of Zini bridge in Panyu district is deficient. A strengthening methtod by external prestressing tendons is proposed to retrofit the deficiencies and increase the safety margin. In this paper, the details of external prestressing system, anchoring structure and deviator structure are described exhaustively. The load bearing capacity improved by external prestressing tendons has been verified by structure analysis. The project practice of rehabilitation engineering proves the technique feasibility, construction convenience, cost competition and target achievement, the rehabilitation is proved successfully by static and dynamic load test. This case can be regarded as a valuable reference for similar engineering design.

关键词： frame bridge with T-shape rehabilitation ezternal prestressing tendons

作者: Hai-Bo Jiang Ren-Da Zhao Fei-Xin Huang Chun-Gen Wei

作者单位: Faculty of Civil and transportation Engineering, Guangdong University of Technology, Guangzhou 51000 School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, P.R. China

会议类型: 国际会议

会议名称: 2009年土木工程结构创新与可持续发展国际会议(The International Symposium on Innovation & Sustainability of Structures in Civil Engineering)

会议地点: 广州

会议语种:英文

页码: 974-980

在线出版日期: 2009-11-28（万方平台首次上网日期，不代表论文的发表时间）