钢桥运输船海峡驻位技术分析

Analysis of steel bridge transport ship channel mooring technology

根据挪威钢桥箱梁段现场安装对运输船的驻位要求和桥址处地理环境及水文环境特点,提出在桥址处海峡两岸设立系缆桩作为固定物,同时在运输船主甲板上安装大型锚铰机的方法改良系泊系统,实现运输船的快速移位与驻位,成本低、可靠性高;该方案通过数值仿真的方法验证其可行性,应用ADAMS软件建立包括船、桥、岸、环境及系泊系统在内的多体三维模型,考虑风和浪的作用,对运输船驻位进行动态运动分析,计算获得系泊系统的受力情况,确认系缆设备能力足够。

According to the requirements of the field installation of the Norway steel box girder on the site of the ship and the characteristic of the geographical environment, the hydrological environment of the bridge location, we put forward the method of setting bitts in both sides of channel as fixtures at the bridge site, at the same time installed large winch in the transportation ship main deck to improve the mooring system, then it can realize the fast displacement and position of the ship with low cost and high reliability. This feasibility of the scheme can be verified by numerical simulation, ADAMS software is used to build the multi-body 3D model including ship, bridge, shore, environment and the mooring system, considering the influence of wind and wave, and then the position of the ship is analyzed dynamically. The stress condition of mooring system is achieved by calculation, and then the capacity of mooring equipment can be confirmed.