Inspection-Based Bridge Health Monitoring And Condition Assessment System

As the breakthrough of continuous bridge design theory and construction technology of continuous innovation,with the increasingly large scale,bridge structure arrangement and the environment has become increasingly complex and harsh.And the structural damage probability and its consequences is also more and more serious,thus,the importance of health monitoring of large bridges is extremely significant.Based on combination of weihai perfume river bridge project,this paper studies the perfume river bridge structural health monitoring system as the main content,focused on the electronic manual inspection subsystem,artificial methods of inspection and maintenance are put forward.Comparative analysis of the current bridge technique condition evaluation of three methods,and choose theregulation methodof "highway bridge technique condition evaluation standard" of 2011 to evaluate the perfume river bridge technique condition.Then this papermade a research on final warning and assessment of the subsystem of the overall framework of the bridge and the basic theory.The main research contents of thesis are as follows:(1)Establishes finite element analysis model of whole bridge,stress analysis was carried out on the bridge,and chooses the unbeneficial structure response of the bridge location as the layout of the sensor monitoring position,develops automation sensor monitoring subsystem solutions.(2)Based on the bridge sensor subsystem for bridge electronic manual inspection maintenance subsystem,determines the content of the manual inspection and maintenance.(3)Comprehensive comparison of the current our country in view of the three kinds of main bridge technique condition evaluation of the current specification,specifically analyzes the features and advantages and disadvantages of each kind of specification,on the basis of choosing perfume river bridge technique condition evaluation method.(4)Combined with today's research results and the engineering practice of the past,the shallowlyanalyzes of bridge is studied in the overall plan of the structure of the early warning and comprehensive evaluation subsystem and the overall scheme.