Research on External Prestressed Cable Reinforcement of Continuous Beam Bridges
The external prestressed cable reinforcement technology has the advantages of simplicity,ease of operation,stable and controllable cost,and can greatly improve the structural load-bearing capacity and seismic performance of existing bridges.It can be used for the reinforcement and reinforcement of in-service bridges.On the basis of investigating the common diseases of a continuous T-beam bridge,a specific plan for external prestressed cable reinforcement is proposed,the key technologies in reinforcement construction are analyzed,and the evaluation method for the effect of external prestressed reinforcement is described in detail.The results show that the strength and stress of the reinforced bridge are significantly improved,and it meets the requirements of conventional indicators,which can achieve the expected goal of improving the performance of the bridge.