Flexible anti-ship collision device for pier

Abstract

The invention discloses a flexible ship-collision resisting device which can protect a pier or a bearing platform and is provided with multiple energy absorption. The flexible ship-collision resisting device comprises an outer steel rail (1), an inner steel rail (3) and a plurality of anti-collision rings (2) which enable the outer steel rail (1) to be connected with the inner steel rail (3), the outer steel rail (1), the inner steel rail (3) and the plurality of anti-collision rings (2) form an energy consumption device, a closed-loop sleeve box (4) which can be particularly and directly contacted with the pier is further arranged in the inner steel rail (3), and a flexible device is arranged between the closed-loop sleeve box (4) and the inner steel rail (3). The closed-loop sleeve box (4) is of a closed-loop box structure and formed by two closed-loop steel plates, and a plurality of supporting bodies are arranged between the two steel plates.

Description

Technical field: [0001] The invention relates to a device for protecting the pier of a large bridge, in particular to a flexible or energy-absorbing anti-ship collision device for the pier of the bridge. Background technique: [0002] With the development of the country's economy and technology, more and more large bridges are built on rivers or along the coast, and the volume of ship transportation is also increasing rapidly. The probability of collision between ships and bridge piers has increased significantly. In fact, many such collision accidents have occurred. Therefore, how to protect the bridge piers is very important. There are many ways to protect bridge piers, such as setting artificial islands, caissons or cofferdams, or setting external pile piers, etc., but the above-mentioned methods have different defects, and some methods cannot be used due to environmental conditions in many cases. . At present, a protective (collision) device has been developed in China...

AI Technical Summary

Problems solved by technology

However, although the above-mentioned prior art has made considerable progress, there are still defects. For example, in the prior art recorded in CN101748706A, there is a certain gap between the inner steel enclosure of the anti-collision device and the bridge pier or the bridge pier cap so that the The anti-collision device can freely float up and down with the change of water level. Under the action of water flow or waves, the inner steel enclosure of the steel structure will continuously slap or hit the bridge pier or the bridge pier cap for many years, which will cause partial damage to the concrete pier or cap. Damage, the accumulation of this damage may lead to the destruction of the bridge pier cap or reduce the bearing capacity of the bridge pier, affecting the service life of the bridge, so how to avoid the occurrence of the above damage is very necessary

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