DESIGN AND ANALYSIS FOR HEALTH-DIAGNOSIS-ORIENTED TEST MODEL OF SUSPENSION BRIDGES

Numerical simulation methods have a lot of limitations in health-diagnosis for bridge structures. It is impossible to do the destructive test on actual bridges. Model test study is very important for health-diagnosis of bridge structures. Oriented health diagnosis, a suspension bridge model is designed and manufactured, based on general type of suspension bridges. The model is designed for multiple test purposes. All members of the model are manufactured independently so as to facilitate member exchange and repeat tests. By especial designed member linkages, all kinds of damage cases and abnormal states in bridge can be simulated conveniently. The static and dynamic measurements for the test model are conducted in detail. The testing results are compared with the numerical results of finite element model developed for the test model. By model updating, two models are agreed well. These two models establish a platform for the future researches.