Safety and Durability Assessment of Cable-supported Bridge by Using ANFIS
Cable-supported structures are more and more widely applied in the long-span bridges. As the major load- carrying components, stayed cables and hangers play vital roles in the whole bridge structure. So their safety, durability and serviceability are seriously concerned. And research on the assessment for safety and durability of a cable-supported bridge is very significant. This paper concentrates on the assessment method for the safety and durability of the cable system of presented cable-supported bridges and suspension bridges. For cable-stayed bridges, the system includes cables and anchorage zone; for suspension bridges, the cable system contains anchorage zone, main cables and hangers. Also, in order to overcome the disadvantage that the traditional method depends on the subjective information excessively, this paper emphasizes numerical information on instrument monitoring and objectivity of obtaining information. The analytical hierarchy process is used to build the evaluation architectures, and the adaptive neural-based fuzzy inference system is used as the engine of evaluation according to fuzzy synthetic judge principle, novelty durability and safety assessment system is founded. In order to verify its validity and rationality, a case study is present here. The result shows that the system this paper proposed performs well in synthesizing the subjective information and objective information and can be used in the assessment of durability and safety of a real life cable supported bridges.
Cable-supported bridges Condition assessment Analytical hierarchy process ANFIS
Wei Chen Danhui Dan Limin Sun
State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China
国际会议
南京
英文
725-731
2007-10-16（万方平台首次上网日期，不代表论文的发表时间）