提升双柱墩防撞性能的钢箱梁加固连接方式

Reinforcing Connection Method of Steel Box Girder to Enhance Collision Resistance of Double Pillar Pier

随着江河流域通航环境的不断优化提升,现阶段许多老桥已无法满足现阶段通航船舶要求,桥墩自身与船舶抗力差较大,船舶撞击桥梁风险增加。针对此现象,论文结合某桥墩加固项目,分析介绍混凝土系梁和钢箱梁的连接方式,对钢箱梁加固进行有限元模拟计算,结果显示该桥所采用的加固方案满足抗拉、抗压、抗弯、抗剪要求。

With the continuous optimization and improvement of the navigable environment in river basins,many old bridges have been unable to meet the requirements of navigable ships at the present stage.The resistance difference between piers and ships is large,and the risk of ship collision with the bridge increases.In view of this phenomenon,the paper combined with a bridge pier reinforcement project,analyzed the connection mode of concrete beam and steel box beam,and carried out finite element simulation calculation of steel box beam reinforcement.The results show that the reinforcement scheme adopted by the bridge meets the requirements of tensile,compressive,bending and shear resistance.