Based On The Analysis Of The Objective Of The Evaluation Results Of Static And Dynamic Load Test Results Of Arch Bridge

Concrete arch bridge in the beautiful structure,bearing characteristics of a large potential in Chongqing mountainous province of highways,urban traffic is widely used,retains the quantity is huge.Therefore,the accurate determination of concrete arch bridge under the action of load test the mechanical performance index and objective evaluation of structural performance,to ensure the maintenance of the bridge safety operation and function has important significance.But this method on the objectivity of the arch structure of the evaluation results still exist many inadequacies,this paper mainly adopts theoretical research,modeling and statistical analysis method of arch bridge's dynamic and static load test of the discussion and analysis of the following aspects:1.In this paper,the calibration coefficient influenced on the concrete arch bridge factors systematically analysis and discussion,through numerical calculation,the quantitative analysis of the distortion due to temperature change rule.The results show that the real measurement value is small,more structural safety reserve,evaluation of the objectivity but worse.2.In this paper,the arch bridge loading method was optimized,including through the use of numerical calculation on the small span bridge load form selection are discussed and found the bridge span less than 50 m four control load calculation results have some difference.3 the measurement methods of long span arch bridges are compared and analyzed,and the reasonable methods and suggestions for the measurement of large span arch bridges are put forward.4.The evaluation on the performance of the structure based on the alignment of the main arch ring the pertinence is not strong,this paper through the typical structure of abnormal linear established finite element model,numerical analysis in the proposed the shape of arch ring intuitive evaluation structure is influenced by the mechanical properties of rationalization proposals.5 based on the analysis of samples,the impact factor of concrete arch bridge is analyzed,and the objective of the calculation results of the impact coefficient in the 04 norm is analyzed and discussed.