Selection And Match Of Rapid Detection Equipment In Small And Medium Span Bridge

It is a very important content to select the supporting rapid detection equipment for small and medium span bridges in service. In recent years, with the development of China's road transport, the number of bridges has been increasing. According to statistics, the medium and small span bridges occupy a large proportion in the total number of China's bridges. However, there are the high cost of experiments and the low detection efficiency in the traditional inspection for bridges. It is of great economic value and social significance to seek a rapid detection method for medium and small span bridges to understand the actual resistance state for small and medium span bridges in service, including the injury situation, the actual capacity, the ability to access and remaining life, etc.This paper is an important part of in the small and medium-sized exsiting bridges for rapid evaluation research of loading capacity in evaluation research of loading capacity which belong to ministry of communications. In the paper, proposed the proposal to accelerate the rapid detection for medium and small span bridges, though researching equipment testing and group with equipment.This paper surveyed the advanced testing methods and equipment and concluded the existing inspected information on the bridge. As the same time, in the paper many problems were researched, which included the loading method for medium and small span bridge, testing method and testing equipment for concrete strength, testing methods and testing equipment about deflection and detection method and detection equipment aim at strain, detection method and detection equipment to crack, etc. Finally, Depending on the testing environment and the bridge, To speed up the medium and small span bridge detection device combination scheme, And compare the advantages and disadvantages of each program. Finally, based on saving to test costs and improve efficiency of detection and thus achieve the purpose of rapid detection. For different bridge types, given the appropriate test equipment program.