About Concrete Bridge Load Test Error Is Discussed In This Paper

With the development of the national economy, the highway traffic enterprise fast development, the big increase in traffic volume, traffic density and vehicle load is more and more big, heavy vehicles are increasing, in the existing highway Bridges, tens of thousands of old bridge, there are quite a number of already can’t meet the requirements of use, technical conditions in a dangerous state, some important component, a serious defect bridge bearing capacity is decreased obviously and directly endanger bridge safety. Testing evaluation of bridge structure, the objective real evaluation of bridge carrying capacity is an effective measure to keep Bridges safety operation. Compared with the bridge collapse caused by social, economy and people life and property loss, accurately grasp the carrying capacity of bridge structure, has far-reaching significance and influence.This article will focus on the bridge there are prone to measurement error in checking evaluation factors detailed analysis and theoretical calculation error, in the form of numerical example caused by the error factors, make the bridge load test can really achieve the purpose of inspection bridge bearing capacity. To this end, this paper mainly illustrated from four aspects: ○1 for bridge load test, discussed the method of eliminating the measurement error and the error; ○2 bridge static test are analyzed in detail the theoretical analysis of error factors, the influence of the current into a bridge load test in the routine analysis, discusses the error factors impact on the results of theoretical analysis; ○3 bridge dynamic load test are analyzed in detail the influence factors of theoretical analysis of error, the accuracy and precision of the dynamic load test theoretical calculation value of a detailed analysis of various factors and their influence size; Comprehensive the above results, ○4 on how to obtain a reasonable bridge load test of theoretical data corresponding Suggestions are put forward.Finally, the paper summarizes several methods to minimize concrete girder bridge load error can be used, to do a good job of the measurement and evaluation of carrying capacity of bridge has a certain guiding significance.