中堂水道桥外包盖梁加固桥梁基础

中堂水道桥在下部结构加固过程中遇到航道等限制情况,针对工程设计过程中遇到的问题,通过方案比选,采取植筋、砼外包盖梁、增加盖梁预应力、顶升、横向增加桩柱等措施,以分担不同比例上部荷载的技术应用于复杂状态的桥墩加固。通过此项体系转换、主动加固桥墩的新技术,开拓加固新思维。

Bridge Foundation Strengthened with Enveloped Cap Beams for Zhongtang Waterway Bridge

As navigation channel and other limitations encountered in the process of strengthening the bridge, in this paper, through program comparison and selection, for the engineering design problems encountered in the process, anchoring reinforcement, enveloped concrete capping beams, increased cap beam prestressing, jacking and additional transverse piles have been carried out to increase different proportions of the upper load - sharing technology in a complex state of the pier reinforcement. The new technologies of system conversion and active pier strengthening have develoned ideas for strengthening.