The Study On The Evaluation And Safeguard Measures Of The Arch Bridge Structure Safety Under Special Vehicle Load

Special vehicle load vehicle bridge is already an urgent problem to be solved, there has been a serious threat to the safety of roads and bridges, the road itself belongs to the category of transport, for the measures of safety assessment and safety of bridge structures carrying capacity and loads of special vehicles, We can improve our country's bridges and roads within a certain range level services. By increasing the degree of structural stability as well as transport and cargo carrying capacity of each bridge, the bridge will allow a large degree of cargo transport capacity has been improved.The laboratory analysis of this particular vehicle load vehicle bridge is safe to study the structure of the bridge by the judgment of the produce, the bridge to take various measures for strengthening the special load vehicle components. Overloaded bridge structural safety assessment, in response to the current domestic situation and overweight transport phenomenon, combined with overloaded vehicles overweight, the current proposed permanent bridge reinforcement reinforcement method, calculated by the carrying capacity of the bridge after construction, analysis and discussion Internal Force Influence under load conditions at strengthening the role model and load model of the bridge structure, the bridge structure safety evaluation and bridges under vehicle load special reinforcement provides reference data to support.In the case study, the problem of overloading Luo select proper bridge were studied, analyzed properly in Romania bridge coal cars severely overweight, overload situation, and ultimately draw a clear relationship between overweight load model checking. While Luo duly reinforced bridge structure calculations, load effect calculation and analysis of the strength and deformation analysis. Finally, due to Romania were recommendations bridge load limit load control and sub-lane traffic loads. The results of this paper consists of two parts, a summary of each part of the analysis studies suggest that, for the evaluation and measures of protection of special arch structure under vehicle load security, first build a bridge, basic information management system for heavy vehicles, by control procedures and systems. Which includes a heavy bridge measuring technique involves content, the survey instrument data provided overweight vehicles, improve management efficiency for heavy vehicles over the bridge.Finally, this paper has been prepared by means of a bridge analysis software for a large number of calculations, by comparative analysis of the results, determine the structure of the bridge carrying mode and bridges to bridge the least harmful way across the bridge, and put forward the corresponding judgment approach and recommended practices.