A bridge collision avoidance facility is a device facility whose main purpose is to protect bridge piers from damage caused by ship impact. These facilities are installed around the bridge piers to absorb energy, cushion impact forces, and extend impact time, thereby protecting the bridge from damage.
At present, bridge anti-collision facilities are mainly divided into two types: rigid bridge anti-collision facilities and flexible bridge anti-collision facilities.
Rigid bridge anti-collision facilities usually refer to steel structure casing energy dissipation facilities, which are made of steel, wood and other materials. This kind of facility mainly has high rigidity and strength, which can effectively reduce the impact force of the ship and protect the safety of people and bridges. However, due to their fixed structural characteristics, rigid bridge crash avoidance facilities are more difficult to repair after an impact. In addition, steel is susceptible to corrosion, and for bridges that have been immersed in water for a long time, they are susceptible to corrosion, increasing maintenance costs.
The flexible bridge collision avoidance facility is a new type of device that is improved on the basis of rigid facilities. Compared with rigid bridge collision avoidance facilities, flexible facilities have more advantages. First of all, bridge collision avoidance facilities made of flexible materials usually have a rounded design, which can adjust the direction of the ship in the event of a collision and avoid the ship from colliding directly with the bridge pier, thereby reducing ship damage. Secondly, flexible materials have excellent corrosion resistance, durability and anti-aging properties, and are not easy to rust even if they are immersed in water for a long time. In addition, the flexible bridge anti-collision facility is designed in the form of a unit module, which is convenient for disassembly, assembly and maintenance, and has a deformation recovery rate of more than 80%, and the maintenance cost is low.
To sum up, flexible bridge anti-collision facilities have more advantages than rigid facilities in protecting bridge safety. They protect the bridge and its surroundings by adjusting the direction of the boat, absorbing energy, and cushioning the force of the impact. In the future, it will become an inevitable trend for flexible bridge anti-collision facilities to replace rigid facilities.
In the future bridge construction and maintenance, we should actively adopt flexible bridge collision avoidance facilities, and continuously improve and innovate to improve the safety and sustainable development of bridges.