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合九线在线路提速和开行重载货物列车后,部分双柱式桥墩的桥梁出现横向振幅超限,严重影响行车安全和桥梁的结构安全。在全面分析原因的基础上,通过加固实验,确定采用基础、墩身和梁体同步加固技术和增设限位装置等辅助措施,有效提高了桥梁的刚度,对整治同类型桥梁的横向振幅超限,具有一定的借鉴作用。
After accelerating and opening heavy-haul freight trains on line along the line of the “Jiu-Jiu Line”, the lateral amplitude of some double-column piers exceeds the limit, seriously affecting traffic safety and the structural safety of the bridge. On the basis of a comprehensive analysis of the reasons, by strengthening the experiment, confirming the use of the foundation, the pier body and the beam synchronous reinforcement technology and the addition of limit devices and other auxiliary measures to effectively improve the stiffness of the bridge, the same type of bridge for the rectification of the lateral amplitude limit , Has a certain reference.