拱形自浮式水上升降防撞装置防撞带结构形式比选

为了更好的保护重庆万州长江公路大桥,重庆交通大学发明了拱形自浮式水上升降防撞装置。这种新型的桥梁防撞装置主要是由导向井、防撞带和浮筒3大部分组成。针对两种不同结构形式的防撞带,采用有限元软件ABAQUS对其结构受力特性、船舶撞击后的防撞效果进行分析,同时在施工工艺和维护难度等方面进行比较,对比发现全钢结构比钢管混凝土结构具有十分明显的优势。因此选择全钢结构作为拱形自浮式水上升降防撞装置防撞带的结构形式更为科学合理。

Arch self-floating lifting water upper anti-collision device collision avoidance belt structure form comparison and selection

To protect Wanzhou Yangtze River Highway Bridge better, the arch-type self-floating lifting water upper anti-collision device is invented by Chingqing Jiaotong University.It is a new type of anti-collision device, made of guide well, collision zone and buoy. The collision zone plays an important role of preventing ship colliding Wanzhou Yangtze River Highway Bridge. This paper demonstrates two different structures of collision zone. And this paper analyzes its force characteristics of structure and collision avoidance effect after ship collision adopting finite element software ABAQUS. At the same time, these two kinds of collision zone are compared in construction technology and maintenance difficulty. It found that full steel construction takes advantages over concrete filled steel tube construction. Therefore it is scientific and reasonable to choose full steel construction as the structural form of collision zone of arch self-floating lifting water upper anti-collision device.