Analysis Of Highway Bridge Health Detection And Technical Condition Evaluation

With the rapid development of China's transportation industry,the country's investment in infrastructure is getting bigger and bigger.As an important part of the traffic hub,the bridge is one of the main links of highway transportation.After the bridge is built up,the social factors such as climate,temperature,rainfall and other natural factors and economic development,as a result of vehicle bridge aging and disease of different levels of a large area,gradually aging corrosion of materials and structural damage accumulation,so that the health status of the bridge and the bearing capacity decreases with time,resulting in a variety of kinds of diseases.In these different disease levels of the bridge,once not timely investigation and eliminate its security risks will cause traffic accidents.Therefore,it is necessary and significant to classify and classify the highway bridges in different years,different regions,different climate and different traffic density.In view of the increase in the number of bridges and bridge structure variety,complex technology,management and maintenance is not in place,the future bridge network management in health examination is essential to develop,put forward reasonable maintenance and management measures according to the health diagnosis means and typical disease damage results,for it is necessary to guarantee the safety of the bridge.At present,the bridge detection in China mainly through three aspects: appearance inspection,nondestructive testing and bearing capacity test.This paper mainly Jinghagaosu highway Jilin bridge and the Jilin Beltway Lanqi bridge(cable-stayed bridge)detection as an example,combined with the current code for maintenance of highway bridges and highway technical condition evaluation standard method,The in-depth analysis of the evaluation method of bridge detection,in addition to the technical condition of the bridge to conduct a comprehensive analysis and evaluation,according to the analysis results of the bridge operation and put forward reasonable suggestions and give appropriate suggestions on bridge maintenance.