CN101215826A

CN101215826A - Anti-collision device for bridge

Info

Publication number: CN101215826A
Application number: CNA2007100329536A
Authority: CN
Inventors: 苏汉明
Original assignee: Guangzhou Shipyard International Co Ltd
Current assignee: Cssc Offshore & Marine Engineering Group Co ltd; Guangzhou Shipyard International Co Ltd
Priority date: 2007-12-28
Filing date: 2007-12-28
Publication date: 2008-07-09
Anticipated expiration: 2027-12-28
Also published as: CN101215826B

Abstract

The invention discloses a bridge anti-collision equipment, which comprises an upper ring plate and a lower ring plate covered on the outside of bridge piers, a plurality of buffers arranged between the upper and the lower ring plates in parallel, wherein the buffers are provided with rotary shafts vertically fixed between the upper and the lower ring plates, more than one buffer cylinder is fixed in the radial direction of the rotary shaft, the buffer cylinder is filled with mediums which can effectively absorb collision energy, the front end of the buffer cylinder is connected with an arc guide plate, the buffers can rotate and make a ship deviate to collide adjacent buffers one after another when the piers are collided, which orderly absorbs collision energy through the buffers and absorbs more collision energy than single-point collision and protects piers with more reliability and safety. Simultaneously, the ship which is made to deviate can continuously move not in the collision direction, the piers only bear part of collision energy and obtain better protection. Besides the buffer cylinder can release the collision energy for recovery after being collided, has no damage and can be repeatedly used with good economy benefits.

Description

A kind of bridge anti-collision device

Technical field

The present invention relates to a kind of bridge anti-collision device that is used to protect bridge pier, prevents the damage of bridge pier bump.

Background technology

River course boat under the bridge, because of night darkness, dense fog or ship-handling person's reasons such as operate miss, the situation of ship collision bridge pier happens occasionally.For example, the Guangdong Jiujiang Bridge is just caved in because of the collision of large-scale sand carrier, causes many automobiles to fall over into the river, and brings enormous economic loss and casualties, has also caused the interruption of traffic simultaneously.In order to prevent that bridge pier from damaging because of the bump of boats and ships, have the way that the rigidity anti-collision structure is installed now outside bridge pier, when bridge pier was subjected to acutely clashing into, the rigidity anti-collision structure was ruined by damage, absorbed energy, thus the protection bridge pier is not smashed.This anti-collision structure, single-point energy-absorbing only during bump, guarantee the structure damage after, boats and ships are unlikely to clash into bridge pier, the strength and stiffness of anti-collision structure are required very high, need to use a large amount of large-sized steel work, cost height; Anti-collision structure is in case bump will be damaged simultaneously, and it only can disposablely use, and must reinstall new anti-collision structure after the damage, and is very uneconomical.

Summary of the invention

The present invention is intended to provide a kind of good economy performance, reusable bridge anti-collision device, to improve the security performance of bridge.

Bridge anti-collision device of the present invention, have and be placed in bridge pier outer upper ring plate and lower ring plate, between upper and lower ring flat-plate and show a plurality of snubbers, snubber has the rotating shaft of longitudinally being fixed between upper and lower ring flat-plate, rotating shaft radially fix an above cushion dashpot, be filled with the medium that can absorb Impact energy in the cushion dashpot, its front end is equipped with arc-shaped guide plate.

Bridge anti-collision device of the present invention is enclosed within the external surface of bridge pier, forms the barrier of one Anti-bumping protection.When the ship collision bridge pier, the component radially of impact makes medium compression in the cushion dashpot, absorb energy, the tangential component of impact then makes snubber deflection, the projected angle of impact that snubber deflection drives boats and ships changes, make the adjacent snubber of ship collision, the adjacent buffer device is equally under the effect of impact, medium compression energy-absorbing in the cushion dashpot, and snubber deflects, and changes the crash direction of boats and ships once more, makes boats and ships clash into next phase buffer more in succession, the rest may be inferred, absorbs fully until Impact energy.A plurality of snubbers have been shared the energy that ship collision produces jointly in its knockout process, can absorb more collision energy than the single-point bump, and it is the reliable protection bridge pier more, and safety is better.In addition; the deflection of snubber can also change the direction of motion of the boats and ships of bump bridge pier during bump; can make boats and ships depart from crash direction and continue motion; snubber does not need to absorb whole kinetic energy of boats and ships; only need absorption portion kinetic energy can effectively protect bridge pier; reduce the risk of damaging because of bump of snubber, further improved the security performance of anticollision device, collision-prevention device, also further improved its anti-collision ability.And anticollision device, collision-prevention device absorbs energy by the elastic deformation of colloid, and bump colloid later can recover by externally releasing energy, and anticollision device, collision-prevention device does not destroy, and is reusable, good economy performance.

Description of drawings

Fig. 1 is a kind of scheme of installation of bridge anti-collision device;

Fig. 2 is a kind of sectional view of bridge anti-collision device;

Fig. 3 is the A-A view of Fig. 2.

The specific embodiment

As Fig. 1, Fig. 2, Fig. 3, a kind of bridge anti-collision device, the upper ring plate 1 and the lower ring plate 2 that are placed in outside the bridge pier 9 are arranged, between upper and lower ring flat-plate and show a plurality of snubbers 3, snubber 3 has the rotating shaft 4 of longitudinally being fixed between upper and lower ring flat-plate, rotating shaft 4 radially fix an above cushion dashpot 5, be filled with the medium that can absorb Impact energy in the cushion dashpot 5, its front end is equipped with arc-shaped guide plate 6.The medium that absorbs Impact energy in the cushion dashpot can be elastic gel, gases at high pressure or hydraulic oil.When filling elastic gel in the cushion dashpot, can produce elastic potential energy by compression and absorb energy, in the cushion dashpot during filling high pressure gas, can improve potential energy, internal energy of molecular and the heat absorption energy of gases at high pressure by compression, when filling hydraulic oil in the cushion dashpot, its cushion dashpot need be communicated with a liquid storage cylinder by the passage of small bore, during collision, hydraulic oil is pressed in the liquid storage cylinder with high speed, and it is by improving the kinetic energy and the heat absorption energy of hydraulic oil.Best in the various media, also suitable with the elastic gel effect.

In order to improve the crashproof ability of bridge anti-collision device, rotating shaft 4 many row's cushion dashpots 5 radially can be installed, each front end of arranging cushion dashpot 5 connects arc-shaped guide plate separately, also can connect jointly with an arc-shaped guide plate 6 on.It can improve the ability that device absorbs Impact energy by increasing the quantity of cushion dashpot 5, makes anticollision device, collision-prevention device can resist stronger bump.A plurality of cushion dashpots 5 also can be installed among same every row, and each cushion dashpot 5 forms an angle each other, and its each row all has a plurality of cushion dashpots 5 to absorb Impact energy, can further improve the anti-collision ability.Simultaneously, every row has a plurality of cushion dashpots 5, for the bump of different angles direction; cushion dashpot 5 can both positive compress; the crashproof arc-shaped guide plate local distortion that it causes in the time of can avoiding not having over against cushion dashpot 5 because of collision angle, the while also can better absorb the energy of bump, better protection bridge pier.More solid and reliable in order to guarantee with the fixed angle of 5 of a plurality of cushion dashpots of arranging, can overlap stationary magazine creel 7 outside the rotating shaft 4, stationary magazine creel 7 offers the through hole that passes for each piston rod 8 with piston rod 8 corresponding positions of each cushion dashpot, can better guarantee the angle of 5 of each cushion dashpots by the restriction of stationary magazine creel 7, guarantee the uniformity that each cushion dashpot 5 rotates, simultaneously fixing of cushion dashpot 5 also had booster action.

The rear side of snubber 3 can be installed buoyancy adjustment case 10, and it can regulate the gravity of whole anticollision device, collision-prevention device, and when water level rose or descends, it can guarantee that all anticollision device, collision-prevention device floats on the surface all the time certainly, thereby guarantees the effectively bump of defence boats and ships.Buoyancy adjustment case 10 can be the resistance to compression distressed structure; its utilization is buckled, bending failure also can absorb Impact energy; make anticollision device, collision-prevention device have the secondary energy absorption ability; even when snubber 3 reaches the energy-absorbing limit; also can pass through distortion, the destruction absorption portion energy of buoyancy adjustment case 10, thereby the protection of bridge pier be played the effect of dual fail-safe.

Anti-friction elasticity protection pad 11 can be installed between buoyancy adjustment case 10 and bridge pier, and it can prevent the mutual friction mutually between buoyancy adjustment case 10 and bridge pier, thus protection buoyancy adjustment case 10.Simultaneously, anti-friction protection pad 11 also has the effect of elasticity energy-absorbing, and it can make anticollision device, collision-prevention device have three grades of energy absorption ability.When preceding two-stage energy-absorbing was not enough to absorb the energy that complete ship collision produces, anti-friction protection pad also can pass through elastic deformation, the absorption portion energy, and the anti-collision ability that it can further improve anticollision device, collision-prevention device plays triple protective effect.

Claims

1. bridge anti-collision device, it is characterized in that: have to be placed in bridge pier (9) outer upper ring plate (1) and lower ring plate (2), between upper and lower ring flat-plate and show a plurality of snubbers (3), snubber has the rotating shaft (4) of longitudinally being fixed between upper and lower ring flat-plate, rotating shaft radially fix an above cushion dashpot (5), be filled with the medium that can absorb Impact energy in the cushion dashpot, its front end is equipped with arc-shaped guide plate (6).

2. bridge anti-collision device according to claim 1 is characterized in that: buoyancy adjustment case (10) is installed between upper and lower ring flat-plate.

3. bridge anti-collision device according to claim 1 is characterized in that: cushion dashpots (5) are arranged in radially being equipped with of described snubber (3) more.

4. bridge anti-collision device according to claim 2 is characterized in that: anti-friction elasticity protection pad (11) is installed between buoyancy adjustment case (10) and bridge pier.

5. bridge anti-collision device according to claim 1 is characterized in that: the medium of the absorbed Impact energy of filling in the cushion dashpot (5) is an elastic gel.