CN209066269U - The multistage energy-absorbing guardrail of bridge - Google Patents

Abstract

The multistage energy-absorbing guardrail of the utility model bridge, including the fence upright (10) being arranged on bridge deck structure (13), it is connected separately with guardrail end rigid post (12) on each fence upright (10), is connect between fence upright (10) and guardrail end rigid post (12) by fixed spring (6) and extension sleeve energy absorption device (100)；It vehicle can be stopped turns over and fall and prevent vehicle from springing back, have good protective effect to driver and passenger.Guardrail after being knocked simultaneously can restore original appearance under the action of elastic element, reduce a possibility that guardrail occurs irrecoverable deformation or directly falls off, to can come into operation again after simple repair, reduce the maintenance cost of Bridge guardrail.

Description

The multistage energy-absorbing guardrail of bridge

Technical field

The utility model belongs to traffic safety protection technical field, and in particular to a kind of multistage energy-absorbing guardrail of bridge.

Background technique

With the fast development that highway in China is built, traffic safety is faced with severe situation, and guardrail is as safety devices, hair Wave important protective action.

Current Bridge guardrail is mainly made by steel and concrete, material is hard, once guardrail with run at high speed Hard hit, which occurs, for vehicle to cause fatal harm to pedestrian and vehicle.Simple steel cable structure is used at the same time Easy damaged vehicle, and the vehicle that easily rebounds, cause secondary traffic accident.

Most of Bridge guardrail applied at present only has single protective action, when a crash occurs, it is more likely that It will lead to guardrail to deform or directly fall off, it is high so as to cause the damaged condition of guardrail, the expenditure of economic cost is increased, is made Its service life substantially reduces, and the requirement of guardrail anticollision is unable to reach, using with limitation.

Utility model content

The purpose of this utility model is to provide the multistage energy-absorbing guardrails of bridge, to overcome existing guardrail protection effect bad And the problem of collision energy can not be absorbed, lead to guardrail well damage after colliding, and cause secondary traffic accident.

To achieve the goals above, the technology employed by the present utility model is a kind of bridge multistage energy-absorbing guardrail, packet The fence upright being arranged on bridge deck structure is included, guardrail end rigid post, fence upright are connected separately on each fence upright It is connect between guardrail end rigid post by fixed spring and extension sleeve energy absorption device；Lead between two guardrail end rigid posts Cross lateral elastic force tie rod, top wirerope is connected with lower part wirerope, wherein elastic force tie rod setting top wirerope and under Between portion's wirerope；It further include the ballast being placed on bridge deck structure, the supported hole on the steel wire penetrating ballast of lower part is connected to The guardrail end rigid post at both ends is mounted with sand in ballast and forms ballast energy absorbing component.

Further, further include the metal shell being fixed on bridge deck structure, be connected with and be arranged in guardrail in metal shell The column bottom shaft of column bottom；Metal shell is internally provided with interlayer, and the inside of metal shell is divided into up and down by interlayer Two annular grooves are wherein provided with torsionspring in upper, annular slot, torsionspring is set in column bottom shaft, reverse bullet One end of spring is fixed on the interlayer of metal shell, and the other end is fixed on the column of column bottom shaft；Lower annular recess is used In the turntable that support is arranged in column bottom shaft, CONTACT WITH FRICTION between the bottom surface of turntable and the supporting surface of lower annular recess； Lubricant coating is provided between the outer wall of column bottom shaft and longitudinal contact surface of metal shell；The bottom surface of column bottom shaft There are gaps to form cavity between the bottom surface of metal shell.

Further, CONTACT WITH FRICTION between the bottom surface of the fence upright and the supporting surface of metal shell.

Further, the CONTACT WITH FRICTION is and is realized using rubber pad, and bottom surface and the metal of fence upright is arranged in Rubber pad between housing upper surface passes through lubricated.

Further, the radial dimension of the column bottom shaft is less than the radial dimension of fence upright.

Further, the both ends of the fixed spring are separately fixed at fence upright and guardrail end by spring mounting seat In rigid post, through there is limit wirerope, the both ends for limiting wirerope are connect with spring mounting seat respectively for the inside of fixed spring.

Further, the extension sleeve energy absorption device includes telescopic sleeve and spring, telescopic sleeve by inner cylinder and The retaining ring of restricted telescopic sleeve shift position, and retaining ring is respectively set in outer cylinder composition, the outer wall of inner cylinder and the inner wall of outer cylinder Be located at the end of the movable end of inner barrel and outer barrel, the other end of inner cylinder is fixed to guardrail end rigid post, outer cylinder it is another End is fixed to fence upright；Spring is wrapped in the outer wall of telescopic sleeve, the both ends of spring and the fixed company of extension sleeve fixing seat It connects.

It further, further include several longitudinally disposed elastic force tie rods, the both ends of the longitudinal direction elastic force tie rod are fixed respectively It is connected to top wirerope and lower part wirerope, and the interconnection of longitudinal the elastic force tie rod and transverse elasticity tie rod.

Further, phosphate coat is provided with outside the top wirerope and lower part wirerope.

Further, the appearance of the elastic force tie rod is provided with polyvinyl resin coat.

Compared with prior art, the utility model at least has the following beneficial effects: after vehicle and guardrail collide, Vehicle is first contacted with the ballast energy absorbing component of bottom, and the part kinetic energy of vehicle can be absorbed in the elasticity of ballast energy absorbing component itself, Simultaneously because itself softer material can play a protective role to car body；Set elastic force tie rod can produce certain change Shape, after car body hits guardrail, the displacement that car body generates forward will be so that elastic force tie rod generates certain deformation, and the elastic force of deformation is drawn Item further absorbs the energy of Vehicular impact.The utility model by set ballast energy absorbing component, elastic force tie rod, spring and Extension sleeve so that guardrail be integrally formed one have elasticity and deformability structure, reached extend vehicle collision when Between, reduce the effect of the acceleration of vehicle collision, vehicle can be stopped by, which playing, turns over the effect for falling and preventing vehicle from springing back.

Further, the lower end of fence upright is made of, the torsionspring on top exists using torsion energy dissipating design two parts When column rotates, collision energy is consumed by the resistance that spring provides, between the column turntable and rubber pad of lower part Frictional resistance can also play buffer function very well, to protect guardrail itself.

Further, the set spring and the adjustable Impact direction of extension sleeve with limit wirerope, thus centainly The degree of guardrail deformation is reduced in degree, while such a elastic connection form can play the role of consuming energy, and Adjacent barrier rotation is driven by elastic force tie rod, to disperse and consume the impact force of errant vehicle, so as to improve entire guardrail The stress condition of structure, so as to improve the working performance of guardrail.

Further, the corrosion resistance that wirerope can be improved by parkerized wirerope, improves fence assembly Service life.

Further, elastic force tie rod can significantly improve bullet using the resilient brace that appearance is provided with polyvinyl resin coat The intensity and durability of power tie rod, and further enhance to the energy-absorbing effect for hitting vehicle.

Detailed description of the invention

Fig. 1 is the guardrail elevational schematic view of the utility model embodiment；

Fig. 2 is the sandbag energy absorbing component schematic diagram of the utility model embodiment；

Fig. 3 is the partial enlarged view of the part A-A in Fig. 1；

Fig. 4 is the partial enlarged view of the part B-B in Fig. 1；

Fig. 5 is the transverse elasticity tie rod of the utility model embodiment and the infall structural schematic diagram of longitudinal elastic force tie rod；

Fig. 6 is the top view of the metal shell of the utility model embodiment；

In figure: 1, ballast energy absorbing component, 2, ballast, 3, elastic force tie rod, 4, lower part wirerope, 5, top wirerope, 6, solid Determine spring, 7, spring mounting seat, 8, limit wirerope, 9, guardrail reflecting sign, 10, fence upright, 11, extension sleeve fixing seat, 12, Guardrail end rigid post, 13, bridge deck structure, 100, extension sleeve energy absorption device, 101, telescopic sleeve, 102, spring, 201, Bolt, 202, torsionspring, 203, lubricant coating, 204, cavity, 205, rubber pad, 206, metal shell, 207, column bottom Shaft, 301, binding steel cable, 302, metal caul, 303, hole.

Specific embodiment

The utility model is described further with reference to the accompanying drawing.

As shown in Figure 1, the multistage energy-absorbing guardrail of the utility model bridge, comprising: bridge deck structure 13, fence upright 10, shield Column end rigid post 12 and ballast energy absorbing component 1, are wherein equipped with metal shell 206 in bridge deck structure 13, metal shell 206 passes through Bolt 201 is fixed on bridge deck structure 13；

As shown in figure 4, metal shell 206 is internally provided with two annular slots being distributed up and down, two annular slots Between be separated by interlayer, wherein upper, annular card slot is for accommodating the torsion bullet being set in column bottom shaft 207 Spring 202, two fixed ends are extended at the top and bottom port of torsionspring 202 respectively, and the fixation end that top is stretched out is solid It is scheduled in column bottom shaft 207, the fixation end that bottom is stretched out is fixed on the interlayer of metal shell 206, in a certain implementation In example, several card slots are provided on interlayer, the fixation end stretched out for 202 bottom of permanent twist spring；Lower annular card slot For accommodating the turntable being arranged in column bottom shaft 207, as shown in figure 4, turntable is fastened on the lower annular of metal shell In card slot, and rubber pad 205 is provided between the bottom surface of turntable and lower annular card slot, moreover, turntable is tightly fastened on annular It in card slot, is in close contact between bottom surface and rubber pad 205, can effectively increase frictional resistance of the turntable in rotation；

As shown in fig. 6, the metal shell 206 combines shape by the metal shell elements of the identical semicolumn of two structures When at, installation, first column bottom shaft 207 is put into a metal shell elements, reuses another metal shell elements The other half of column bottom shaft 207 is blocked, then two metal shell elements are fixed as one, two such metal shell The respective two complete annular slots of corresponding composition of upper and lower part half slot；In the preferred embodiment of the utility model, torsion The three layers of distribution from inside to outside in circular trough of spring 202, to increase the torsional moment of torsionspring 202, will preferably be hit The fence upright 10 hit pulls go back to original position.Lower circular, which is used to support, is arranged in 207 lower part of column bottom shaft Round turntable is provided with rubber pad 205 between the bottom surface of turntable and the contact surface of lower circular.

Lubricant coating 203 is provided between the outer wall of column bottom shaft 207 and longitudinal contact surface of metal shell 206； There are gaps to form cavity 204 between the bottom surface of column bottom shaft 207 and the bottom surface of metal shell 206；Fence upright 10 The contact surface of bottom surface and metal shell 206 is provided with the rubber pad 205 by lubricated, the rubber pad after lubricated The frictional force between fence upright 10 and metal shell 206 can be reduced, can not only play the role of damping, but also can be to avoid rubbing It is excessive to wipe resistance.

In the preferred embodiment of the utility model, the radial dimension of column bottom shaft 207 is less than fence upright 10 Radial dimension.The advantage is that: it is to guarantee its ability for bearing to hit, and column that the radial dimension of fence upright 10 is larger Bottom shaft 207 is located underground, not will receive direct collision contact, so not needing excessive size carrys out proof strength, and And 207 radial dimension of column bottom shaft it is larger if will increase the sizes of various constructions in metal shell, cost of use is significantly Increase.The size of guardrail Each part needs to determine by checking computations in actual use.

The middle part of fence upright 10 is provided with guardrail reflecting sign 9；As shown in figure 3, guardrail upright pole 10 passes through multiple telescopics Cylinder energy absorption device 100 and fixed spring 6 are connected with guardrail end rigid post 12, and wherein the both ends of fixed spring 6 are pacified by spring The dress fixation of seat 7 is individually secured on fence upright 10 and guardrail end rigid post 12, and through there is limit inside fixed spring 6 The both ends of wirerope 8, limit wirerope 8 are separately fixed on the spring mounting seat 7 of two sides；Extension sleeve energy absorption device 100 is by that can stretch Contracting sleeve 101 and 102 two parts of spring are constituted, and telescopic sleeve 101 is applied in the inside of spring 102, and spring 102 is fitted in shield Between column upright bar 10 and guardrail end rigid post 12；Telescopic sleeve 101 includes inner barrel and outer barrel, and inner cylinder movable end passes through outer cylinder Movable end protrudes into outer cylinder, and the inner cylinder other end is connect with guardrail end rigid post 12, and the outer barrel other end is connect with guardrail upright pole 10, Wherein, the end outer wall of the movable end of inner cylinder is equipped with one layer of retaining ring, and also has one layer of retaining ring on the inner wall of the movable end of outer cylinder, and two Layer retaining ring cooperation limits the relative position between inner cylinder and outer cylinder, when inner cylinder is moved out by drawing, moves to It can be moved by limitation when the retaining ring position of outer cylinder end, inner cylinder is avoided to deviate from from outer cylinder.

In actual use, fence upright 10 and guardrail end rigid post 12 are arranged in pairs, two groups of fence uprights 10 and guardrail It is connected between end rigid post 12 by elastic force tie rod 3, guardrail end rigid post 12 is located at two groups of fence uprights 10 and guardrail end The inside of portion's rigid post 12 realizes the connection between two groups by two guardrail end rigid posts 12 of connection；The bullet being laterally arranged 3 quantity of power tie rod be it is multiple, be respectively arranged with top wirerope 5 and lower part wirerope in the upper and lower part of multiple elastic force tie rods 4, the both ends of wirerope are fixed in the guardrail end rigid post 12 of two sides；It is additionally provided between two groups of guardrail end rigid posts Multiple longitudinally connected elastic force tie rods 3, the both ends of longitudinal elastic force tie rod 3 are separately fixed at top wirerope 5 and lower part steel wire On rope 4, it is horizontal and vertical in this way on elastic force tie rod 3 be staggered to form it is netted.The elastic force tie rod 3 of horizontal and vertical setting is intersecting Place is attached, and specific structure is double-deck as shown in figure 5, the infall in elastic force tie rod 3 is equipped with double-deck metal caul 302 Metal caul one in front and one in back clamps the infall of transverse elasticity tie rod 3 and longitudinal elastic force tie rod 3, is provided on metal caul 302 Four holes 303, four holes 303 are each provided with one in four angles that transverse elasticity tie rod intersects with longitudinal elastic force tie rod It is a, by penetrating binding steel cable 301 in the two circular cavities 303 of the diagonally opposing corner of double-deck metal caul 302, bind steel cable 301 The part for stretching out hole 303 is locked by anchor block, and similarly another group of hole is by being similarly provided with two metal cauls Fixation, realized with this and fixation to the infall of elastic force tie rod 3 completed by metal caul 302, so that vertical and horizontal are set The elastic force tie rod interconnection set forms an organic whole together, improves the intensity of guardrail belt.

Ballast energy absorbing component 1 is placed on bridge deck structure 13, ballast energy absorbing component 1 is mounted with the ballast of sand by inside 2 form, and ballast 2 is made of high-intensitive rubber, and in the preferred embodiment of the utility model, ballast 2 uses polyurethane rubber Glue or neoprene preparation, in a certain embodiment of the utility model, using sand made of the higher neoprene of cost performance Capsule 2, the material have tensile strength very high, and tearing strength is very high, durability also good advantage, and neoprene has Anti-flammability can cope with the fire being likely encountered in traffic accident.

As shown in Fig. 2, the inside of ballast 2 is mounted with sand, run through lower part wirerope 4 in the connecting hole of ballast 2, it is thus husky The top of capsule energy absorbing component 1 is connected as one with lower part wirerope 4, and lower part is placed on bridge deck structure 13, in this way when vehicle is hit When hitting guardrail, ballast energy absorbing component 1 first buffers vehicle, and netted elastic force tie rod 3 is then pulled to carry out again vehicle Secondary buffering.

In preferred embodiment in the present invention, elastic force tie rod 3 is made of spring steel, and the appearance package of spring steel There is polyvinyl resin coat, thus manufactured elastic force tie rod 3 has the advantages that intensity is high, durability is good.

In the preferred embodiment of the utility model, fence upright 10 and column bottom shaft 207 are all made of cylindrical knot Structure.

In the preferred embodiment of the utility model, top wirerope 5 and lower part wirerope 4 use identical setting, and Pass through phosphorating treatment, to improve the corrosion resistance of wirerope.

The working principle of the multistage energy-absorbing guardrail of the utility model bridge are as follows:

After vehicle and guardrail collide, vehicle is first contacted with the ballast energy absorbing component 1 of bottom, ballast energy absorbing component 1 The part kinetic energy of vehicle can be absorbed in the elasticity of itself；The displacement that car body generates forward will be so that elastic force tie rod 3 generates certain change Shape, the elastic force tie rod 3 of deformation further absorb the energy of Vehicular impact；After elastic force tie rod 3 is deformed, spring 102 is driven It works with telescopic sleeve 101, the energy of Vehicular impact is further absorbed using the dilatation of spring, when the above measure is insufficient When kinetic energy to offset vehicle collision, column bottom shaft 207 rotates, and torsionspring 202 is caused to deform and column bottom Sassafras occur for portion's shaft 207 and rubber pad 205, further consume collision energy with this.After accident treatment, entire fence sytsem will Restore it to a certain extent using function under the restoring force effect of each spring, can be reused by simply repairing, from And reduce use and maintenance cost.

The above descriptions are merely preferred embodiments of the present invention, not makees in any form to the utility model Limitation.Although the utility model has been disclosed with preferred embodiment as above, it is not intended to limit the utility model.It is any ripe Those skilled in the art is known, in the case where not departing from technical solutions of the utility model ambit, all using the side of the disclosure above Method and technology contents make many possible changes and modifications to technical solutions of the utility model, or be revised as equivalent variations etc. Imitate embodiment.Therefore, all contents without departing from technical solutions of the utility model, according to the technical essence of the utility model to Any simple modifications, equivalents, and modifications that upper embodiment is done still fall within the model of technical solutions of the utility model protection In enclosing.

Claims (10)

1. the multistage energy-absorbing guardrail of bridge, which is characterized in that including the fence upright (10) being arranged on bridge deck structure (13), often It is connected separately with guardrail end rigid post (12) on a fence upright (10), fence upright (10) and guardrail end rigid post (12) Between by fixed spring (6) and extension sleeve energy absorption device (100) connection；Pass through cross between two guardrail end rigid posts (12) To elastic force tie rod (3), top wirerope (5) and lower part wirerope (4) connection, wherein elastic force tie rod (3) be arranged in upper steel Between cord (5) and lower part wirerope (4)；It further include the ballast (2) being placed on bridge deck structure (13), lower part wirerope (4) Supported hole on ballast (2) is connected to the guardrail end rigid post (12) at both ends, is mounted with sand in ballast (2) and forms sand Capsule energy absorbing component (1).

2. the multistage energy-absorbing guardrail of bridge as described in claim 1, which is characterized in that further include being fixed on bridge deck structure (13) On metal shell (206), setting is connected in metal shell (206) in the column bottom shaft of fence upright (10) bottom (207)；Metal shell (206) is internally provided with interlayer, and the inside of metal shell (206) is divided into two annulars up and down by interlayer Slot is wherein provided in upper, annular slot torsionspring (202), and torsionspring (202) is set in column bottom shaft (207) On, one end of torsionspring (202) is fixed on the interlayer of metal shell (206), and the other end is fixed on column bottom shaft (207) on column；Lower annular recess, which is used to support, is arranged turntable on column bottom shaft (207), the bottom surface of turntable with CONTACT WITH FRICTION between the supporting surface of lower annular recess；The outer wall of column bottom shaft (207) and the longitudinal direction of metal shell (206) connect Lubricant coating (203) are provided between contacting surface；Between the bottom surface of column bottom shaft (207) and the bottom surface of metal shell (206) There are gaps to form cavity (204).

3. the multistage energy-absorbing guardrail of bridge as claimed in claim 2, which is characterized in that the bottom surface of the fence upright (10) with CONTACT WITH FRICTION between the supporting surface of metal shell (206).

4. the multistage energy-absorbing guardrail of bridge as claimed in claim 2 or claim 3, which is characterized in that the CONTACT WITH FRICTION is use The rubber pad that rubber pad (205) is realized, and is arranged between the bottom surface and metal shell (206) upper surface of fence upright (10) (205) pass through lubricated.

5. the multistage energy-absorbing guardrail of bridge as claimed in claim 2, which is characterized in that the column bottom shaft (207) Radial dimension is less than the radial dimension of fence upright (10).

6. the multistage energy-absorbing guardrail of bridge as described in claim 1, which is characterized in that the both ends of the fixed spring (6) are logical It crosses spring mounting seat (7) to be separately fixed on fence upright (10) and guardrail end rigid post (12), the inside of fixed spring (6) Through having limit wirerope (8), the both ends of limit wirerope (8) are connect with spring mounting seat (7) respectively.

7. the multistage energy-absorbing guardrail of bridge as described in claim 1, which is characterized in that the extension sleeve energy absorption device It (100) include telescopic sleeve (101) and spring (102), telescopic sleeve (101) is made of inner barrel and outer barrel, outside inner cylinder The retaining ring of restricted telescopic sleeve (101) shift position is respectively set in the inner wall of wall and outer cylinder, and retaining ring is located at inner cylinder With the end of the movable end of outer cylinder, the other end of inner cylinder is fixed to guardrail end rigid post (12), and the other end of outer cylinder is fixed to Fence upright (10)；Spring (102) is wrapped in the outer wall of telescopic sleeve (101), and the both ends of spring (102) and extension sleeve are solid Reservation (11) is fixedly connected.

8. the multistage energy-absorbing guardrail of bridge as described in claim 1, which is characterized in that further include several longitudinally disposed elastic force The both ends of tie rod (3), the longitudinal direction elastic force tie rod (3) are respectively fixedly connected with to top wirerope (5) and lower part wirerope (4), And the interconnection of longitudinal elastic force tie rod (3) and transverse elasticity tie rod (3).

9. the multistage energy-absorbing guardrail of bridge as described in claim 1, which is characterized in that the top wirerope (5) and lower part Phosphate coat is provided with outside wirerope (4).

10. the multistage energy-absorbing guardrail of bridge as claimed in claim 1 or 8, which is characterized in that outside the elastic force tie rod (3) Table is provided with polyvinyl resin coat.