Damage Simulation of Cable of Long-span Concrete Cable-stayed Bridge
Stayed cable is a key part of the force system in terms of cable-stayed bridge,whose safety performance can be influenced by damaged cable.In this paper,an effective area method is utilized to simulate the damaged cable.Both the single and double damages are studied,the corresponding cable loss is estimated; and the changes of the mid-span deflection and first-order frequency are discussed.Moreover,the numerical example is carried out by taking the Sutong bridge as the background.The results are demonstrated that it is realistic and possible to simulate the cable loss by using the reduced effective area of cable.Furthermore,the deflection of the main span has an evident change when the damaged cable is farther away from pylons; nevertheless,the cable loss has a slight effect on the first-order frequency.
cable-stayed bridge Sutong bridge cable loss damage simulation condition assessment
Bin Zeng Zhenwei Zhou Bo Wen Qing Xu Yanchao Shao Liyuan Huang Chunfeng Wan
Central Research Institute of Building and Construction Co.,Ltd,Beijing 100088,China Key Laboratory of Concrete and Prestressed Concrete Structure of Ministry of Education,Southeast Uni
国际会议
西安
英文
228-233
2018-09-21（万方平台首次上网日期，不代表论文的发表时间）