Ocean pier system for protecting ship body by adopting yawing mechanism

Abstract

The invention provides an ocean pier system for protecting a ship body by adopting a yawing mechanism, which belongs to the technical field of overwater building safety protection. The system comprises a pier, ring fixed connection ring rib plates, a connection fixing rotating rod, a fixing nut and anti-collision rotating barrels, wherein three layers of the ring fixed connection ring rib plates are arranged on the outer ring of the pier; a plurality of anti-collision rotating barrels are arranged between every two adjacent ring fixed connection ring rib plates; barrel end plates are respectively arranged at the upper end and the lower end of the anti-collision rotating barrel; and the outermost layer of the anti-collision rotating barrel is provided with a barrel outer wall, and the innermost layer is provided with a barrel inner wall. The system has the advantages that the anti-collision rotating barrel is convenient and fast to install, a single unit is convenient to replace when damaged, the arranged anti-collision rotating barrels can effectively play a role in shock absorption and energy consumption, impact force generated by collision is reduced, and energy exchange and vibration reaction between a ship body and a pier are remarkably reduced.

Description

technical field [0001] The invention belongs to the technical field of water building safety protection, in particular to a marine pier system that adopts a yaw mechanism to protect a hull. Background technique [0002] With the continuous development of the transportation industry, a large number of cross-sea and cross-river bridges are constantly being built. Most of the rivers and seas where such bridges are located are busy waterways, and the conditions such as currents, waves, wind and waves are complicated, and the bridge inevitably bears a certain risk of ship collision. Relevant studies have been carried out at home and abroad, and the ship-bridge collision theory has been proposed, and some bridge protection facilities have been designed. The fundamental purpose of bridge anti-collision is to prevent the structural damage of the bridge caused by the collision force of the ship exceeding the design bearing capacity of the bridge pier on the one hand, and to protect ...

AI Technical Summary

Problems solved by technology

Among them, the anti-collision box or double-wall anti-collision steel box is used to block the ship, consume the kinetic energy of the ship, slow down the ship, delay the impact, and weaken the impact force of the ship on the pier; The kinetic energy of the ship is huge, and the anti-collision box, double-wall anti-collision steel box and flexible energy-dissipating anti-collision device can only prevent small ships due to the limited elastic buffer of the material. For ships with slightly larger mass or higher speed, It cannot absorb the huge kinetic energy of the ship very well, its energy dissipation and anti-collision effects are not good, it is easy to be damaged, potential safety hazards still exist, and its service life is short. It needs to be replaced immediately after being damaged. It is a giant, weighing thousands of tons, difficult to install, easy to corrode after being scratched, and affecting the service life

Therefore, the existing protective devices for bridge piers need to be further improved. At present, anti-collision bridge piers are a very common marine traffic safety facility, and have been widely used in some dangerous areas. In the event of a collision, setting up an anti-collision pier or pier anti-collision installation kit with cushioning performance can greatly buffer the huge impact force generated by the impact, thereby greatly reducing the serious consequences of traffic collision accidents. Under the action of the impact force, the anti-collision bridge piers with strong, strong impact resistance and good cushioning performance are very necessary infrastructure for marine traffic safety. In the past two decades, nearly a hundred bridges across rivers and seas have been built in China. Many of them are super projects, but the impact of objects such as ship hulls on bridge piers has caused heavy casualties, property losses and other incidents from time to time, which shows that there are still deficiencies in the anti-collision design and anti-collision measures of bridge piers in marine traffic, and the research on anti-collision of bridge piers in China has started It is still relatively late, and the attention was not paid enough in the early stage. Many anti-collision design theories and calculation methods refer to foreign research results. Therefore, it is particularly critical to develop and design effective anti-collision pier facilities, so that the bridge will not be damaged and the hull will not be damaged. , The design purpose of the strong enough piers plays an important role in the development of China's maritime traffic in the national economy and society

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