The Testing And Evaluation Of In-service Bridge Structure

With the rapid development of the society and economy，the traffic constructionis becoming more and more important，in which the bridge plays a vital role.Because of the overloading of vehicles or the natural disaster or the staving byhuman，lots of existing bridges could not been satisfied with the new requirement ofthe load-bearing capacity. Once the load-carrying capacity of bridge is down，it willseriously threaten human’s life and property. Therefore target-oriented carries on thedetection and assessment of existing bridge，can gain the bridge condition promptly，evaluates its actual load-bearing capacity and implement the further processingmeasure as well，guaranteed that the operation safety and the smooth of the traffic，in addition may accumulate the correlation technique material to supplies the similarwork to apply and to study. This thesis attempts to present four aspects as follows.（1）Taking an in service bridge as an example, detection its size, appearancestructure, nondestructive testing, static load test and checked its correspondingbearing capacity.（2）Through the analysis of testing data, get the evaluation results of the servicebridge structure, and puts forward corresponding suggestions of strengthening to theevaluation result. Thus to provide a basis and reference for the bridge’s structuraltesting and evaluation in the future.