某立交桥受重型车辆撞击致桥面、主梁损坏,给出检测方法及桥梁安全评估,并分析了碰撞荷载形式及结构破损性质:荷载为冲切力,结构混凝土呈现冲切破坏、钢筋剪断。采用快硬性、早强混凝土进行抢修加固,加固后桥梁使用性能良好。 An overpass is damaged by heavy vehicles and the main girder is damaged. The detection methods and bridge safety assessment are given. The types of load and the structural damage are also analyzed. The load is punching force, the concrete is punched and damaged and the steel is cut off. The use of fast hardening, early strength concrete repair reinforcement, the bridge after the use of good performance.