Research On The Performance Evaluation And Transformation Technical Scheme Of A Bridge

Due to the large number of highway bridges in China,during the long-term service period,due to the influence of their own conditions and external environmental factors,there will be a certain degree of damage.Regular inspection of the bridge structure can accurately determine the current state of the bridge structure,provide a reference for the later operation,and give reference for the subsequent reinforcement and transformation.This paper relies on a porous complex bridge during its service,and inspects it according to the results.Based on the analysis of ABAQUS,the correctness of the transformation technology is ensured.(1)Based on the current research status at home and abroad,this paper analyzes the current research trends of bridge inspection and reinforcement and reinforcement,and introduces the content of this paper.(2)According to the development status of existing bridge appearance inspection technology,the technical evaluation methods of five commonly used bridge structures are introduced.The specific evaluation methods of each method are introduced.(3)According to the current state of use of the bridge structure,the various components of the bridge structure were inspected and the existing problems were recorded and summarized.According to the results of the visual inspection,the scores of the bridges are calculated based on the bridge specifications.The technical status of each part is used to analyze the technical status of the whole bridge to determine the grade of the bridge structure.(4)According to the current state of use of the bridge structure,based on the particularity of the supporting project,based on the real simulation of the structure of Midas civil software,the dynamic and static load test program was determined.The dynamic and static load test was carried out on the structure.The results show that: Relying on the long-term super-design requirements during the service of the engineering bridge and the lack of timely operation and maintenance,the overall structural rigidity has a large loss.(5)According to the results of bridge structure appearance and dynamic and static load test,the ABAQUS finite element software was used to simulate the bridge structure.The force variation of the bridge structure under two different working conditions of bridge deck pavement continuous and separated is analyzed.The results show that the overall performance of the bridge structure requires the separation of the pavement layer of the Haoyu bridge deck in the case of continuous bridge deck pavement.