Buffering and energy dissipation collision avoidance device of bridge

Abstract

The invention relates to a buffering and energy dissipation collision avoidance device for a bridge. The buffering and energy dissipation collision avoidance device comprises a collision avoidance structure which sleeves the periphery of a bearing platform of a pier or a collision avoidance pier or a channel pier of the bridge and is provided with a long sliding chute, wherein buffers are distributed between the long sliding chute of the collision avoidance structure and two ends of the bearing platform of the pier or the collision avoidance pier or the channel pier; buffering devices are distributed between the long sliding chute of the collision avoidance structure and two sides of the bearing platform of the pier or the collision avoidance pier or the channel pier; the head of the collision avoidance structure is a streamline-shaped head or a leftwards inverted E-shaped head; height limiting frames for preventing ship collision are arranged on the collision avoidance structure in front of the bridge and on two sides of a channel. The buffering and energy dissipation collision avoidance device for the bridge has the technical advantages that when a ship collides with the head of the collision avoidance structure and the height limiting frames for preventing ship collision, the long sliding chute of the collision avoidance structure moves to press the buffers to do work to dissipate kinetic energy of the ship; meanwhile, under the guide of a leftwards inverted E-shaped slope or a streamline-shaped guide surface at the head of the collision avoidance structure, the ship is subjected to deviation rectification, and the height limiting frames stop a superhigh ship and protect a bridge frame of the bridge; when the side of the ship collides with the collision avoidance structure, the buffering devices on the long sliding chute of the collision avoidance structure protect the pier or the collision avoidance pier.

Description

technical field [0001] The invention relates to the technical field of bridge ship collision protection, in particular to a bridge pier, a bridge anti-collision pier and a bridge frame ship collision protection device. 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. In non-conditions, when a ship rubs or hits a bridge pier or bridge frame, the momentum of a ship with a certain speed is very large. According to the momentum theorem: mv1-mv2=FΔt, Δt is instantaneous, so its impact force is huge , Damaged bridges occur from time to time. [0003] At present, the forms of anti-collision devices for ships hitting bridges can be divided i...

AI Technical Summary

Problems solved by technology

[0007] At present, most of the bridge frames of the bridges in rivers, lakes and seas are arc-shaped bridge frames. When the ship passes the bridge hole, the top of the ship is higher than the height of the bridge and collides with the bridge frame; drifted or deflected, causing the ship to hit the bridge frame

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