Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 31824
Internal Force State Recognition of Jiujiang Bridge Based on Cable Force-displacement Relationship

Authors: Weifeng Wang, Guoqing Huang, Xianwei Zeng


The nearly 21-year-old Jiujiang Bridge, which is suffering from uneven line shape, constant great downwarping of the main beam and cracking of the box girder, needs reinforcement and cable adjustment. It has undergone cable adjustment for twice with incomplete data. Therefore, the initial internal force state of the Jiujiang Bridge is identified as the key for the cable adjustment project. Based on parameter identification by means of static force test data, this paper suggests determining the initial internal force state of the cable-stayed bridge according to the cable force-displacement relationship parameter identification method. That is, upon measuring the displacement and the change in cable forces for twice, one can identify the parameters concerned by means of optimization. This method is applied to the cable adjustment, replacement and reinforcement project for the Jiujiang Bridge as a guidance for the cable adjustment and reinforcement project of the bridge.

Keywords: Cable-stayed bridge, cable force-displacement, parameter identification, internal force state

Digital Object Identifier (DOI):

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1362


[1] KimH┬ÀM. Damage detection and health monitoring of large space structures .Sound and Vibration.1993, 27(6).
[2] J. M. W. Brownjohn} P. Moyo, P. Omenzetter, and Y.Lu. Assessment of highway bridge upgrading by dynamic testing and finite-element model updating (J). Journal of Bridge Engineering, 2003, 8(3): 162-172.
[3] Li qiao. Investigation of State Identification Technique on Cable-stayed Bridges During Health Monitoring. Master thesis, Southwest Jiaotong University. April 2007.
[4] Xiang Tianyu and Zhao Renda et al. Damage Identification on the Prestressed Concrete Continuous Beam Structure Based on the Static Test Data (J). China Civil Engineering Journal. 2003, 36 (11): 79-82.
[5] Zhang Qiwei. Model Updating of the Suspension Bridge Structure By Means of Ambient Vibration Measurements (J). Journal of Vibration Engineering. 2002. 15 (1) : 74-78.
[6] Jiang Hua. Research on Bridge Structure Damage Identification and Evaluation Theory Based on the Static Test Data. Master thesis, Southwest Jiaotong University, January 2005.
[7] Cui Fei, Yang Dangqi and Gao Yan. Bridge Structure Damage Identification by Means of Parameter Identification Technique (J). China Railway Science. 2003, 24 (3): 36-39.
[8] Tan Donglian and Xiao Rucheng Parameter Identification of Existing Bridge Structure Based on Improved Gauss-Newton Algorithm (J). Journal of Tongji University (Natural Science Edition).2007,7 (4) :58-60.
[9] Cui Fei. Structure Damage Identification Based on Static Response and Displacement Measurement (J), Journal of Tongji University, 2000.28 (1)
[10] Wang Bohui. Development of the Cable-stayed Bridge Structure and the Experience in China (M). Beijing: People's Traffic Press, 2004.
[11] Ran Zhihong and Li Qiao. Application of Impact Matrix Method in the State Identification of the Nanjing Yangtse River No.3 Bridge (J). Sichuan Building Science, 2008, 34 (4): 36