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以目前持续运营中的箱梁桥为研究对象,对桥梁目前的病害情况进行分析,结合桥梁的运营状况和结构特点,采用了体外预应力的加固方法对桥梁进行加固处治,改善桥梁的受力性能。该桥在进行体外预应力加固后,经过多年的运营,桥梁运营状况较好,实践证明该加固方法能改善桥梁的使用性能,延长桥梁的使用寿命,这将为该类桥梁的加固提供参考。
Taking the existing continuous operation of the box girder bridge as the research object, the present condition of the bridge is analyzed, and combined with the operation status and structure characteristics of the bridge, the reinforcement method of external prestress is adopted to reinforce the bridge and improve the force of the bridge performance. After years of prestressed reinforcement of the bridge, the bridge is in good condition after operation for many years. Practice has proved that the reinforcement method can improve the service performance of the bridge and prolong the service life of the bridge, which will provide reference for the reinforcement of such bridges.