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Selection and practical application of anti-collision rubber fenders for piers
Edit: Jiangsu Ahn Jin Rubber Co., Ltd.Date: 2018-11-02

Since the introduction of rubber fenders from China in the mid-eighties, it has been used for ports, docks and some ships. Since the collapse of the Jiujiang Bridge in Guangdong in June 2007, the collision avoidance of bridge piers has become an urgent development. The project, some owners and large design institutes began to pay attention to the anti-collision project of the newly built special bridge, and some professional anti-collision facilities production and construction enterprises such as Jiangsu Anjin Rubber Co., Ltd. appeared in the market. The main product, rubber fender , which absorbs energy as anti-collision damping, has been singled out due to its previous focus on the dock.

Bridge anti-collision obeys "three is not bad", the selection of rubber fenders is mainly based on navigation conditions, ship tonnage, water level and so on. At present, more arched V-shaped rubber fenders are used. Although the fenders have been used in a large amount, the piers are densely packed, but the fenders have less energy absorption, the surface is easily scratched and easily peeled off. , easy to age. After a long period of time, it does not have the protective effect it deserves. In addition, the threshold of the product is low, many small workshops have cut corners at low cost, and some products are even broken into glutinous rice powder when they are 3-5 young. Invalid.

The rotating rubber fender resolves the force of the pier when hit by a large displacement. It is also a wise choice to use in some narrow navigation holes. However, due to the high cost of the product, it is unlikely to be used in large quantities.

In summary, it can achieve good anti-collision results and cost savings. It should adopt super arch type (SA type, V type second generation product) combined rubber fender, 2-5 rubber fenders (even more) By sharing an anti-collision panel, the ultra-high molecular polyethylene board (ie, UHMW-PE) is anchored on the anti-collision panel, and the rubber fender anti-collision system can be arranged around the whole pier according to the pier. This way there is no dead point from any point of impact. When the ship hits, the entire bumper plate is forced to absorb energy through the rubber fender behind it. This combined anti-collision system works well and can withstand the impact of large ships. Low cost (a large reduction in the number of rubber fenders used and long service life.