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采用钢结构拱对圬工拱桥进行套拱法加固,通过设计合理的节点构造以确保钢套拱与原拱桥形成协同工作体系。通过有限元模型分析了加固后的拱圈变形和拱板应力,结果表明,钢套拱能有效提高圬工拱桥的拱圈结构刚度,减少拱圈变形。
The steel arch was used to reinforce the arch bridge with the arch bridge, and the node structure was designed to ensure that the steel arch arch and the original arch bridge form a cooperative working system. The finite element model is used to analyze the deformation of the arch and the stress of the arch. The results show that the arch of the arch can effectively increase the stiffness of the arch of the arch bridge and reduce the deformation of the arch.