Study On Apllication Of Bonding Steel & CFRP In Bridge Strengthening

With China's sustained economic development, rapid pace of road construction, road traffic increasing and serious overloading of motor vehicles, far beyond the current design capacity, resulting in highway bridges were damaged to varying degrees, and still overload . Reinforcement and adaptation of these gauge bridge in service without delay, how to find a save money, and reasonable, and time-saving reinforcement, highway engineers have been facing a major issue.CFRP bonded steel plates and reinforced concrete structures are commonly used in two ways: paste the steel reinforced bridge is an effective bridge reinforcement enhancement, compared to other strengthening methods, the physical and mechanical properties of steel is the same-sex, mechanical behavior Well, has its own unique advantages; paste carbon fiber is a new means of structural reinforcement structures, carbon fiber has a density, tensile strength, flexibility, wide application field, construction technology to facilitate many other advantages, in many practical engineering Enhanced structural reinforcement has been applied on a wide range of awareness.Therefore, this paper two reinforced concrete arch bridge reinforcement project as an example, Finite element analysis software as a tool, Calculated the structural design of reinforced section of the former resistance and deflection, and the reinforced structure of key parts of the stress and deflection analysis of its applicability, To determine a reasonable reinforcement to provide a guarantee, the reinforcement of other bridges have some reference value.