移动式支撑装置在桥梁浮拖中的稳定性研究

Stability Study on Mobile Support Device in Floating-hauling Bridge

鉴于桥梁浮拖中移动式支撑装置的重要作用,通过实施现场模拟试验,确定驳船的改造方式,设计最合理的移动式支撑装置;分析浮拖过程中各工况支反力的变化情况,应用空间有限元计算程序,模拟验算移动式支撑装置的承载能力;同时着重从船舱排水、风载、水流力几方面对移动式支撑装置的稳定性进行细致分析,并提出具体控制措施,较好地解决浮拖过程中的稳定性问题。

In view of the important role of the mobile support device in floating-hauling bridge, the paper carried out the field simulation test to determine the modification mode of the barge, and designed the most reasonable mobile support device. Then, the change of supporting force in each working condition was analyzed, and the space finite element calculation program was applied to simulate the carrying capacity of the mobile support device. Meanwhile, the paper focused on the stability of the mobile support devices from the aspects of the cabin drainage, wind load, flow force, and put forward specific control measures, so as to better solve the stability problem in the process of floating-hauling bridge.