Discussion And Research To Improve The Parameters Of The Bridge Based On Static Test Results Of Performance Evaluation Objectivity

Currently, the method of bridge construction site inspection including dynamic and static loads test, checking the status quo structure, structural defects and the durability of non-destructive testing, etc., where the bridge load test with its high reliability, and other characteristics to be targeted are widely used, but also bridge carrying capacity assessment is more effective and has been widely recognized by the industry approach. In this paper, improving research and discussion were based on static parameters measured results of performance evaluation of bridge structures objectivity, the main contents include:① discussed based on the structure of the bridge load test performance evaluation of the background, purpose and significance of the bridge structure and performance evaluation of the development of history, analysis and discussion of the current situation based on the static measurement parameters Bridge performance evaluation on this basis, and problems;② strain measured by quantitative structural analysis affected by temperature, given the guarantee simply supported beam bridge temperature measured strain reliability allowed fluctuation range recommended value;③ The main test method for load test deflection tests, quantitative analysis of the scales tilt, curvature of the earth, atmospheric refraction and other factors that impact on the deflection measured results, and put forward reasonable proposals;④ analysis and research on the 111 bridge load test measured sample data, shows four common bridge deflection, stress the value of the constant calibration coefficient range, while on how to ensure that the structural performance evaluation objectivity, reasonable standard application, unexpected disposal Found calibration coefficients statistical law, concrete arch section stress calibration coefficients at discrete conducted in-depth research and study, and to make reasonable suggestions, with a high reference value;⑤ In the analysis of the observed relative residual vulnerability indicators measuring the impact is difficult to avoid errors caused by poor basic distortion and objectivity on the cause, how reasonable interpretation and application of the relative residual structural performance indicators to analyze objective evaluation presented substantially different experimental results value evaluation method of residual control of different relative value;⑥ on measurable parameters based on static factors affecting the objectivity of the evaluation results of a systematic analysis and study of pavement layer thickness, the lateral load variation, elastic modulus values and other effects of calibration coefficients were analyzed quantitatively.