Sea-crossing bridge pier anti-collision buffer device

Abstract

The invention discloses a sea-crossing bridge pier anti-collision buffer device and belongs to the field of bridge safety protection. The device comprises a first anti-collision assembly. The first anti-collision assembly and a second anti-collision assembly are connected to a pier in a sleeving mode. The second anti-collision assembly is connected with the first anti-collision assembly through asteel rope; the first anti-collision assembly comprises a protective gasket connected to the outer side of the pier in a sleeving mode; a main ring sleeve is arranged on the outer side of the protective gasket; and a coaxial ring groove is formed in the inner wall surface of the main ring sleeve, two ring grooves are formed in the inner wall surface of the main ring sleeve, rotatable sliding steelrings are installed in the ring grooves and connected with the outer wall surface of the protective gasket through supporting pieces, the supporting pieces are arranged in a surrounding mode, and a first buoyancy air bag is arranged between the upper supporting piece and the lower supporting piece and surrounds the protective gasket. According to the device, a protection position can be adjustedalong with a water level, the piers in water can be protected at the same time, a ship movement direction can be changed during collision, graded collision is achieved, ship collision damage is reduced, and a radial impact force borne by skilled transition is decreased.

Description

Technical field [0001] The invention belongs to the field of bridge safety protection, and in particular relates to an anti-collision buffer device for a cross-sea bridge pier. Background technique [0002] With the rapid development of the transportation industry, the number of large bridges that have recently been built across navigable rivers, port areas and straits has gradually increased, and the number of ships on the waterways has also increased and the ship types tend to be large, making bridges and navigable ships The contradiction between them is becoming more and more prominent, so the accidents of ships hitting bridge piers are also increasing. A ship-bridge collision accident will cause the loss of life and property, seriously affect human activities, social stability and the natural environment, and directly endanger the safety of water transportation, roads and railways. The lighter ones will cause damage to ships and bridges and affect them. In the service life, ...

AI Technical Summary

Problems solved by technology

Ship-bridge collision accidents will lead to the loss of life and property, have a serious impact on human activities, social stability and the natural environment, and directly endanger the safety of water transportation, roads, and railways. In severe cases, the ship will be destroyed and the bridge will collapse, causing heavy casualties and property losses

According to relevant reports and literature records at home and abroad, accidents of boat collisions with bridges have been occurring continuously all over the world. Even billions of dollars in property losses. At the same time, the structural damage caused by the impact of the ship on the bridge has reduced the bearing capacity and durability of the bridge within the design life to a certain extent, and a large number of indirect losses are even more difficult to calculate. In order to protect the bridge pier To avoid the direct impact of ships, it is necessary to install anti-collision devices on the pier, but most of the existing protection devices are difficult to automatically adjust the protection position according to the rise of the water level, which is not conducive to the protection of the pier

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