Research On The Bridge Routine Quality Detection Based On The Modern Detecting Technology During The Service Period

As an important infrastructure of the country,Bridges are the key transportation hubs and play a vital role in modern transportation operation.It is necessary to carry out load test on the bridge regularly to ensure the safety of bridge operation.Traditional bridge deflection measurement method is to pass on some specific point hanging dial gauge,contrast light load and different load conditions of the dial indicator reading and to determine the deflection value of that point under different conditions.This kind of contact measurement method is widely used and has high precision.But the downside is clear.Modern instrumentation provides more possibilities for increasingly sophisticated testing environments.This paper introduces the methods of traditional bridge detection through engineering examples,and carries out the measurement with the reliable and advanced digital detection instruments.In order to verify the accuracy of the new instrument and equipment,the measurement data of the original traditional measuring instrument are retained and compared.Experiments show that the new equipment can improve the detection efficiency and the accuracy can meet the requirements.What is more surprising,for small bridge detection,traditional method and the new method is feasible,but for large span and complex environment of large bridge detection,traditional methods can’t satisfy the detection requirements,then take advantage of new auxiliary measuring detection tools,satisfactory results were obtained.In addition,the traditional method is based on static data detection.With the improvement of infrastructure security requirements in modern society,with the support of dynamic data,a better understanding of bridge operation period of the use of safety is a good complement to detect the conclusion and improvement of conducive to a more reasonable in the dimension of the Bridges in service work.