Validation Of Random Traffic Flow Vehicle-bridge Coupling System And Evaluation Based On Health Monitoring System

In recent years, many bridge structures have some kinds of problems, so it is necessary toprovide a health monitoring system for some bridges. However, the current health monitoringsystem’s function of calculation is poor.The software of the system need to be developed, alarge number of real dates lack theoretical to evaluate. So developing a software used forcalculation is dispensable. The BDANS can solve the problem successfully.In this paper, the main focus of the research work carried out the following aspects:(1) Take a large-span combined truss arch bridge for example, to create finite elementmodel of the arch bridge by Midas and BDANS so as to verify the static calculation of thissoftware’s function. From the results, two kinds of software’s calculation results are almostidentical, so static function of BDANS is worthy of trust.(2) To measure health monitoring traffic flow parameters of the bridge, including models,the lateral position of the vehicle, vehicle weight, speed, etc., and use the dynamicspeedometer to measure responses under dynamic loading. To analyze the structure’sresponses of the real traffic flow based on BDANS. Comparing real measured dates withcomputed results is order to look for the correlation between them. From the results, dynamicfunction of BDANS is worthy of trust.(3) Take the bridge for example again, to evaluate the bridge bearing capacity based on thetraffic flow vehicle-bridge coupling system in order to demonstrate the feasibility of BDANSapplied in health monitoring assessment system. Through the results, the shear capacity ofvertical section is weak.