Research On Health Detection On And Reinforcement Technique Of The Existing Bridges

With the rapid development of traffic career, all kinds of existing bridge is more and more. In the rain, freezing, temperatures and humidity changes the natural factors of erosion, some Bridges has appeared different degree of damage and even the load ability has greatly reduced, and many of the bridge structure performance produced very big change and gradually evolved into unsafe bridge, need for this kind of bridge to test, in order to take corresponding technical modification measures or dismantled and rebuilt scheme in the bridge of test methods, non-destructive testing is one of the most intuitive the most important test method to judge the safety of the bridge structure bearing capacity and evaluation of bridge operation quality.This paper mainly is about Tang Qing big bridge in fuzhou yongtai county, to simulate the disease detection and reinforcement renovation scheme research The main research contents are as follows:First of all, to the upper structure of the bridge deck and accessory works, beam and horizontal clapboard, bearing, the strength of concrete and carbonization test status, the corresponding Suggestions and opinions.Second, the structure of the bridge abutment, pier and cover beams and columns and beams, piles and foundation of the detection, mainly including bridge spans the structure size detection technology, crack investigation, reinforced layout and diameter, concrete strength testing, pier and pier scour situation investigation.Finally, according to the actual situation of the test, according to the maintenance of the highway bridge standard "(JTG H11-2004) bridge technical status rating standard, according to bridge the comprehensive evaluation method and parts power evaluation, the bridge belongs to four kinds of bridge; On the basis of the highway bridge maintenance rules "(JTG H11-2004) bridge technical status rating standard, according to an important part of the most unfavorable bridge defect status evaluation, evaluation of bridge for four kind of bridge; Based on this, given the reinforcement and reconstruction, remove the reconstruction of three kinds of schemes, and are compared and analyzed.