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超限大件车辆装载不能分拆的专用电力设备途经东沙河大桥,结合原桥运营状况良好的条件采取了“桥上桥”的临时加固方案,有效提高现有桥梁承载力,从而解决了大件运输车辆在限定日期前通行的问题。由于该次车辆装载的特殊性,车辆运行时需要超大净宽,无法采用装配式公路钢桥标准件进行拼装,提出通过采用大横梁结构、优化大横梁的安装位置、设计简易的横梁与弦杆连接构件等措施,确保尽可能少地改造“321”装配式公路钢桥,以达到临时加固的目的。
Overload large vehicles can not be diverted to load the special power equipment through the Dongshahe Bridge, combined with the original bridge operating conditions in good condition to take “Bridge on the bridge ” temporary reinforcement program to effectively improve the existing bridge capacity, in order to solve The issue of large transport vehicles passing by a limited date. Due to the particularity of this vehicle loading, the vehicle requires large net width during operation and can not be assembled by the assembled highway steel bridge standard parts. The adoption of a large beam structure optimizes the installation position of the large beam and the simple design of the beam and chord Connecting components and other measures to ensure that as little as possible to transform “321 ” assembly type highway steel bridge in order to achieve the purpose of temporary reinforcement.