Nondestructive Testing Technology Study Of Reinforced Concrete Cable-stayed Bridges Cable Force And Concrete Strength In Service

With the development and application of long-span bridge structure,its durability is in the spotlight.Because of its beautiful appearance,reasonable force of cable-stayed bridge is widely built.of,the steel bar corrosion,cable corrosion is most serious in this kind of structure durability failure forms such as long-span cable-stayed bridge built in years,and it is also the main cause of their destruction.As a result,regular testing for large span reinforced concrete cable-stayed bridge is particularly important.The existing detection techniques mainly include three types: damage detection technology,half damage detection technology and nondestructive testing technology.This article focuses on reinforced concrete cable-stayed bridge of concrete strength and the cable force detection method.To measure the strength of concrete,including the rebound method,ultrasonic rebound synthesis method and core drilling method.Fundamental frequency method,determination of jack pressure gauge to measure the stay cable force.A cable-stayed bridge in Chongqing was taken as an example.Completed concrete strength testing,concrete cover thickness detection and cable force under dead load,and then the test results of these methods were analyzed,fitting out a formula that values closer to the real value,and according to the test results to evaluate the running state of the cable-stayed bridge in service,and to evaluate the results of corresponding reinforcement maintenance advice,reinforced concrete cable-stayed bridge for subsequent testing provides a complete set of specific methods.