CN213867355U

CN213867355U - Combined multi-angle anticollision bridge railing of preventing vehicle from turning on one's side

Info

Publication number: CN213867355U
Application number: CN202022589918.8U
Authority: CN
Inventors: 陈星月; 何佩琪; 张柳煜; 王启晨; 史小川
Original assignee: Changan University
Current assignee: Changan University
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-08-03
Anticipated expiration: 2030-11-10

Abstract

The utility model relates to the technical field of road traffic safety facilities, and discloses a combined multi-angle anti-collision and anti-vehicle rollover bridge guardrail, which comprises a concrete base, wherein an anti-collision buffer plate is fixedly arranged on the inner wall of the bottom of the concrete base, a buffer plate fixing bolt is movably connected on the left side of the bottom of the anti-collision buffer plate, a buffer spring is fixedly connected on the left side of the anti-collision buffer plate, a backing plate is fixedly arranged on the bottom of the buffer spring, a bridge floor is fixedly connected on the bottom of the concrete base, when a small automobile vertically impacts or impacts the bridge guardrail at a certain angle in consideration of various vehicle impact forms, the front end or the tail end of the automobile is firstly contacted with the concrete base, a buffer baffle plate and the buffer spring on the concrete base can give a buffer effect to the automobile, if the impact force of the automobile is too large, the automobile climbs upwards along the guardrail or turns over, the groove type concrete base can restrain the vehicle from climbing or turning over along the guardrail.

Description

Combined multi-angle anticollision bridge railing of preventing vehicle from turning on one's side

Technical Field

The utility model relates to a road traffic safety facility technical field specifically is a vehicle bridge railing that turns on one's side is prevented in combined multi-angle anticollision.

Background

The bridge guardrail is mainly used for protecting the side of a highway bridge, preventing out-of-control vehicles from crossing the bridge and has the functions of preventing the vehicles from passing through, running through, turning over the bridge and beautifying the bridge building.

The guardrail form that adopts on highway bridge at present has concrete guardrail, metal beam column formula guardrail, combination formula guardrail. The concrete is a rigid guardrail and basically does not deform after being collided. The metal beam column type guardrail is a semi-rigid guardrail, has better deformability and can absorb a large amount of impact energy. A common type of combined guardrail is a reinforced concrete base at the lower part plus a metal cross beam at the upper part. The existing anti-collision bridge guardrail design can only have a buffering effect or only has a vehicle protecting effect, but the vehicle is out of control to turn over or the vehicle turns out of the bridge when casualty events caused by traffic accidents are mainly caused. The existing design can not effectively buffer the anti-collision design according to the distribution of the stress of the guardrail when a vehicle collides the guardrail. The displacement of the vehicle cannot be effectively limited according to the movement track of the vehicle after the vehicle impacts the guardrail.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a vehicle bridge railing that turns on one's side is prevented in combined multi-angle anticollision possesses the advantage that anticollision shock-absorbing capacity is good, has solved the vehicle when striking the guardrail because the effect of inertia climbs the vehicle that causes along the bridge railing and turn on one's side or the vehicle turns over the problem of the outer serious casualties accident of waiting of bridge.

(II) technical scheme

For the purpose that realizes that above-mentioned anticollision shock-absorbing capacity is good, the utility model provides a following technical scheme: a combined multi-angle anti-collision anti-vehicle rollover bridge guardrail comprises a concrete base, wherein an anti-collision buffer plate is fixedly arranged on the inner wall of the bottom of the concrete base, a buffer plate fixing bolt is movably connected to the left side of the bottom of the anti-collision buffer plate, a buffer spring is fixedly connected to the left side of the anti-collision buffer plate, a backing plate is fixedly arranged at the bottom of the buffer spring, a bridge floor is fixedly connected to the bottom of the concrete base, a bolt is movably connected to the inner wall of the top of the concrete base, a stand column is movably connected to the outer wall of the top of the bolt, railing bolts are movably connected to the top and the bottom of the stand column, buffer blocks are fixedly arranged on the outer walls of the two railing bolts, cross beams are fixedly arranged on the right sides of the two buffer blocks, the stand column and the two cross beams are respectively and fixedly connected through the two buffer blocks, and a plurality of buffer blocks positioned between the cross beams and the stand column can absorb collision loads in a large amount, a good buffering effect is formed, and a bracket is fixedly arranged at the bottom of the cross beam;

the right side of the cross beam is fixedly provided with a connecting sleeve, and the inner wall of the connecting sleeve is movably connected with a connecting bolt.

Preferably, the concrete base is side direction open-ended cell type concrete base, and the opening of concrete base is for the one side towards the bridge floor, and the curb plate of concrete base dorsad bridge floor one side is for having the oblique curb plate of certain angle slope, and the incline direction is towards the bridge floor direction, and the design of cell type lets the vehicle take place the front end or the tail end that the vehicle can be wrapped up in the empty case of concrete base cell type when the accident bumps the guardrail, and the further displacement of restriction vehicle prevents that the vehicle from climbing upwards along the guardrail.

Preferably, the anticollision buffer board is arranged along concrete foundation extending direction, the bottom of anticollision buffer board and concrete foundation's bottom plate top fixed connection, the top is located concrete foundation roof lower part and is not connected with concrete foundation roof, the anticollision buffer board is the one side of bridge floor dorsad and buffer spring's right side fixed connection, buffer spring's bottom and the top fixed connection of backing plate, the anticollision buffer board is because only the lower extreme is fixed on concrete foundation bottom plate, the degree of freedom is bigger, there is certain range's deformation to respond to the impact force when taking place the striking, so there is fine cushioning effect.

Preferably, the inclination of the one side of concrete foundation outside board dorsad the bridge floor direction is sixty degrees to eighty-five degrees, the inclination of the one side of concrete foundation outside board towards the bridge floor direction is eighty degrees to ninety degrees, outside board thickness is down thick narrow linear variation, the contained angle makes the power that buffer spring transmitted the concrete foundation bottom plate decompose into a vertical decurrent pressure and one parallel with the bridge floor, the directional off-bridge face of direction thrust to the guardrail, vertical decurrent pressure can strengthen the impact resistance of concrete foundation, thrust to the guardrail also is less than the thrust that traditional guardrail received a lot.

Preferably, the edge of the bottom plate of the concrete base on the side of the ground projected towards the bridge deck exceeds five to fifteen centimeters relative to the edge of the top plate on the side of the ground projected towards the bridge deck, so that the concrete base is of a slope structure to further increase the buffering force during collision.

Preferably, the angle of buffer spring and concrete foundation bottom plate is forty-five degrees, and every buffer spring constitutes a set ofly with the backing plate, six total groups, and every stand, every two crossbeams and every two buffer blocks constitute a set ofly, and three total groups, buffer spring's interval equals the interval between every two sets of neutral posts in every three groups to use the level line of bridge floor as axle evenly distributed, through connecting sleeve fixed connection between every group middle crossbeam, set up the multiunit and can make overall structure more stable increase buffering.

Preferably, the bottom of the buffer spring is fixedly connected with the top of the backing plate, and the bottom of the backing plate is fixedly connected with the top of the concrete base bottom plate, so that the concentrated force of the buffer spring is transmitted to the concrete base bottom plate more uniformly.

Preferably, the anticollision buffer board lower extreme passes through the buffer board fixing bolt and links to each other with the concrete foundation bottom plate, and the anticollision buffer board is unilateral with the concrete foundation and is connected, connects and is located one side of anticollision buffer board bridge floor dorsad for anticollision buffer board overall structure is more stable firm, further can bear bigger impact.

Preferably, the quantity of bracket is six totally, and every bracket comprises horizontal hold in the palm limit and vertical fixed limit, and the top of every horizontal hold in the palm limit and the bottom fixed connection of the buffer block and the crossbeam that correspond, every vertical fixed limit left side and rather than the right side fixed connection of the stand that corresponds, bracket can be used to hold in the palm and carry buffer block and crossbeam, further make the guardrail receive behind the impact crossbeam and the buffer block be difficult for crashing down.

Preferably, stand and crossbeam are square steel pipe, and the buffer block is hollow steel, and every crossbeam is equal coincidence in subaerial projection to concentrate the impact that receives the anticollision buffer board, make more even transmit the bottom plate of concrete foundation with power.

(III) advantageous effects

Compared with the prior art, the utility model provides a combined multi-angle anticollision bridge railing of preventing vehicle from turning on one's side possesses following beneficial effect:

1. this combined multi-angle anticollision bridge railing of preventing vehicle from turning on one's side has realized through stand and concrete foundation that not only the guardrail stand can form the buffering, and the base also can play the cushioning effect.

2. This vehicle bridge railing that turns on one's side is prevented in combined multi-angle anticollision takes into account the form of multiple vehicle striking, strikes the bridge railing perpendicularly or strikes with certain angle when the kart, and the front end or the tail end of car contact the concrete base earlier, and buffer baffle and buffer spring on the concrete base can give a cushioning effect of car, if the vehicle impact force is too big upwards climbs or turns on one's side along the guardrail, cell type concrete base can restrain the vehicle and climb or turn on one's side along the guardrail.

3. This combined multi-angle anticollision bridge railing of preventing vehicle from turning on one's side takes place to turn on one's side when kart, perhaps is when large-scale vehicles such as large-scale freight train and bus striking guardrail, and the concrete base can double the buffering to the vehicle with preventing the railing, reduces the casualties.

4. This combined multi-angle anticollision bridge railing of preventing vehicle from turning on one's side, the collision load that the bridge railing can significantly reduce when the vehicle collides to the decking transmission effectively avoids the decking to cause under the vehicle collision effect the damage, improves the decking life-span.

5. This vehicle bridge railing that turns on one's side is prevented in combined multi-angle anticollision, the utility model discloses a strengthen the stability of base, set the inclined plane to one side of base bridge floor dorsad for concrete base bottom size is greater than the upper portion size, is favorable to keeping the stability of cell type concrete support. The concrete base that inclines inwards also can improve the antidumping performance of base, has increased the crashworthiness of guardrail.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the cross-sectional structure of the present invention along the direction of a-a.

In the figure: 1. a concrete base; 2. a buffer spring; 3. an anti-collision buffer plate; 4. a column; 5. a buffer block; 6. a cross beam; 7. a bolt; 8. a railing bolt; 9. a base plate; 10. a bracket; 11. connecting a sleeve; 12. a connecting bolt; 13. a bridge deck; 14. the buffer plate is fixed with the bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, a combined multi-angle anti-collision and anti-rollover bridge guardrail for vehicles comprises a concrete base 1, wherein the concrete base 1 is a side-opening groove-shaped concrete base 1, the opening of the concrete base 1 is one side facing a bridge deck 13, a side plate of the concrete base 1 facing away from the bridge deck 13 is an inclined side plate inclined at a certain angle, the inclined direction faces the direction of the bridge deck 13, the groove-shaped design enables a groove-shaped hollow box of the concrete base 1 to wrap the front end or the tail end of the vehicle when the vehicle collides with the guardrail in an accident, so as to limit the further displacement of the vehicle and prevent the vehicle from climbing upwards along the guardrail, an anti-collision buffer plate 3 is fixedly arranged on the inner wall of the bottom of the concrete base 1, the lower end of the anti-collision buffer plate 3 is connected with a bottom plate of the concrete base 1 through a buffer plate fixing bolt 14, the anti-, the connection is positioned on one side of the anti-collision buffer plate 3 back to the bridge floor 13, so that the whole structure of the anti-collision buffer plate 3 is more stable and firm and further can bear larger collision force, the anti-collision buffer plate 3 is arranged along the extending direction of the concrete base 1, the bottom of the anti-collision buffer plate 3 is fixedly connected with the top of the bottom plate of the concrete base 1, the top is positioned at the lower part of the top plate of the concrete base 1 and is not connected with the top plate of the concrete base 1, one side of the anti-collision buffer plate 3 back to the bridge floor 13 is fixedly connected with the right side of the buffer spring 2, the bottom of the buffer spring 2 is fixedly connected with the top of the backing plate 9, the anti-collision buffer plate 3 is fixed on the bottom plate of the concrete base 1 due to only the lower end, the degree of freedom is larger, the anti-collision buffer plate has certain amplitude of deformation to respond to the impact force when in collision, so that the anti-collision buffer effect is good, the inclination angle of one side of the outer side of the concrete base 1 back to the bridge floor 13 is sixty degree to eighty-fifty-five degrees, the inclination angle of one side of the outer side plate of the concrete base 1 facing the direction of the bridge deck 13 is eighty degrees to ninety degrees, the thickness of the outer side plate is linearly changed from thick at the bottom to narrow at the top, the included angle enables the force transmitted to the bottom plate of the concrete base 1 by the buffer spring 2 to be decomposed into vertical downward pressure and thrust to the guardrail parallel to the bridge deck 13, the direction points to the thrust to the guardrail outside the bridge deck 13, the impact resistance of the concrete base 1 can be enhanced by the vertical downward pressure, the thrust to the guardrail is much smaller than the thrust received by the traditional guardrail, the edge of the bottom plate of the concrete base 1 projected to one side of the bridge deck 13 relative to the edge of the top plate projected to one side of the bridge deck 13 exceeds five to fifteen centimeters, the buffer force during collision is further increased by the concrete base 1 in a slope structure, and the buffer plate fixing bolt 14 is movably connected to the left side of the bottom of the anti-collision buffer plate 3, the left side of the anti-collision buffer plate 3 is fixedly connected with a buffer spring 2, the angle between the buffer spring 2 and the bottom plate of the concrete base 1 is forty-five degrees, each buffer spring 2 and a backing plate 9 form a group, six groups are arranged, each upright post 4, each two cross beams 6 and each two buffer blocks 5 form a group, three groups are arranged, the distance between the buffer springs 2 in each three groups is equal to the distance between each two groups of middle upright posts 4, the three groups are uniformly distributed by taking the horizontal line of a bridge floor 13 as an axis, the cross beams 6 in each group are fixedly connected through a connecting sleeve 11, the whole structure is more stable and buffer is increased by arranging a plurality of groups, the bottom of the buffer spring 2 is fixedly connected with the top of the backing plate 9, the bottom of the backing plate 9 is fixedly connected with the top of the bottom plate of the concrete base 1 for more uniformly transmitting the concentrated force of the buffer spring 2 to the bottom plate of the, the bottom of the concrete base 1 is fixedly connected with a bridge deck 13, the top inner wall of the concrete base 1 is movably connected with a bolt 7, the top outer wall of the bolt 7 is movably connected with a column 4, the column 4 and the beam 6 are square steel pipes, the buffer blocks 5 are hollow steel, the projection of each beam 6 on the ground is overlapped so as to concentrate the impact force on the anti-collision buffer plate 3, so that the force is more uniformly transmitted to the bottom plate of the concrete base 1, the column 4 and the two beams 6 are respectively and fixedly connected through the two buffer blocks 5, the buffer blocks 5 between the beam 6 and the column 4 can absorb the collision load in large quantity to form good buffer effect, the top and the bottom of the column 4 are both movably connected with railing bolts 8, the outer walls of the two railing bolts 8 are both fixedly provided with the buffer blocks 5, and the right sides of the two buffer blocks 5 are both fixedly provided with the beam 6, the bottom of the crossbeam 6 is fixedly provided with six brackets 10, each bracket 10 consists of a horizontal supporting edge and a vertical fixing edge, the top of each horizontal supporting edge is fixedly connected with the corresponding buffer block 5 and the bottom of the crossbeam 6, the left side of each vertical fixing edge is fixedly connected with the right side of the corresponding upright post 4, and the brackets 10 can be used for supporting the buffer blocks 5 and the crossbeam 6, so that the crossbeam 6 and the buffer blocks 5 are not easy to collide after the guardrail is subjected to collision force;

the right side of the beam 6 is fixedly provided with a connecting sleeve 11, and the inner wall of the connecting sleeve 11 is movably connected with a connecting bolt 12.

The working principle is that a combined road and bridge guardrail base is formed by combining a groove type concrete base 1 and a steel structure anti-collision buffer plate 3, the concrete base 1 is different from the prior solid column type concrete base 1, wherein the groove type design of the concrete base 1 enables the front part of a vehicle to be covered to protect the vehicle when the vehicle is impacted on the guardrail in an accident, in addition, the concrete base 1 considers various vehicle impact modes, when a small-sized vehicle is impacted vertically or at a certain angle, the front end or the tail end of the vehicle is contacted with the concrete base 1 firstly, the anti-collision buffer plate 3 and the buffer spring 2 on the concrete base 1 can provide a buffer effect for the vehicle, if the vehicle is impacted by too large force and climbs or turns over along the guardrail upwards, the groove type concrete base 1 can inhibit the vehicle from climbing or turning over along the guardrail, and the anti-collision buffer plate 3 is only fixed on the bottom plate of the concrete base 1 at the lower end, the degree of freedom is great, has certain range's deformation to respond to the impact force when taking place the striking, so has fine cushioning effect, and buffer spring 2 is used for supporting crashproof buffer board 3, has increased crashproof buffer board 3's shock resistance. Furthermore, because buffer spring 2 and concrete base 1 bottom plate have an contained angle, buffer spring 2 transmits the power of 1 bottom plate of concrete base and is decomposed into a vertical decurrent pressure and one and is parallel with bridge floor 13, the outside thrust to the guardrail of the directional bridge floor 13 of direction, vertical decurrent pressure can strengthen concrete base 1's shock resistance, so thrust to the guardrail also is little than the thrust that traditional guardrail received when receiving the impact. In addition, the guard beam includes: the supporting upright posts 4 are arranged along the extending direction of the concrete base 1 and are installed on the concrete base 1, the cross beam 6 is arranged along the extending direction of the concrete base 1 and is positioned on one side, facing the bridge deck 13, of the upright posts 4, the plurality of buffer blocks 5 are positioned between the cross beam 6 and the plurality of upright posts 4 and correspond to the upright posts 4, one end of each buffer block 5 is fixedly connected with the upright post 4 corresponding to the buffer block, and the other end of each buffer block 5 is fixedly connected with the cross beam 6;

the bridge guardrail adopts a combined structure of the lower concrete base 1 and the upper protective beam, wherein, the guard beam comprises a vertical column 4, a cross beam 6 and a plurality of buffer blocks 5 positioned between the vertical column 4 and the cross beam 6, each buffer block 5 is connected with the corresponding vertical column 4 and the cross beam 6, furthermore, on one hand, after the vehicle collides with the cross beam 6, the plurality of buffer blocks 5 positioned between the cross beam 6 and the upright post 4 can absorb a large amount of collision load, thereby forming good buffer effect, effectively reducing the transmission of the collision load to the upright post 4 and the concrete base 1, thereby greatly reducing the collision load transmitted to the bridge deck 13, on the other hand, greatly increasing the load absorption effect of the guard beam, and the concrete base 1 bears the impact load, so that the damage of the impact load to the concrete base 1 is reduced, and further, a bridge deck 13 system is protected. It should be noted that the bridge deck 13 slab, also called a traffic lane slab, according to the embodiment of the present invention is a load-bearing structure for directly bearing the wheel pressure of the vehicle, and is generally made of reinforced concrete. The utility model provides a bridge railing be used for keeping apart road and non-road both sides, wherein, 'bridge floor 13' also means 'road surface', and 'bridge floor 13 one side' means road one side that is used for driving a vehicle promptly.

In conclusion, the combined multi-angle anti-collision and anti-rollover bridge guardrail is a combined road bridge guardrail base formed by combining the groove type concrete base 1 and the steel structure anti-rollover buffer plate 3, because the concrete base 1 is different from the prior solid column type concrete base 1, the groove type design of the concrete base 1 enables the front part of a vehicle to be covered when the vehicle collides with the guardrail in an accident, and the vehicle is protected, and the concrete base 1 considers various vehicle collision forms, when a small-sized vehicle collides vertically or collides with a certain angle, the front end or the tail end of the vehicle contacts the concrete base 1 firstly, the anti-collision buffer plate 3 and the buffer spring 2 on the concrete base 1 can provide a buffer effect for the vehicle, if the vehicle is too large to climb upwards or rollover along the guardrail, the groove type concrete base 1 can inhibit the vehicle from climbing or rollover along the guardrail, the anti-collision buffer plate 3 is fixed on the bottom plate of the concrete base 1 only at the lower end, the degree of freedom is large, and the impact force is responded to by the deformation with a certain amplitude when the impact occurs, so that the anti-collision buffer plate has a good buffer effect, the buffer spring 2 is used for supporting the anti-collision buffer plate 3, and the impact resistance of the anti-collision buffer plate 3 is improved. Furthermore, because buffer spring 2 and concrete base 1 bottom plate have an contained angle, buffer spring 2 transmits the power of 1 bottom plate of concrete base and is decomposed into a vertical decurrent pressure and one and is parallel with bridge floor 13, the outside thrust to the guardrail of the directional bridge floor 13 of direction, vertical decurrent pressure can strengthen concrete base 1's shock resistance, so thrust to the guardrail also is little than the thrust that traditional guardrail received when receiving the impact. In addition, the guard beam includes: the supporting upright posts 4 are arranged along the extending direction of the concrete base 1 and are installed on the concrete base 1, the cross beam 6 is arranged along the extending direction of the concrete base 1 and is positioned on one side, facing the bridge deck 13, of the upright posts 4, the plurality of buffer blocks 5 are positioned between the cross beam 6 and the plurality of upright posts 4 and correspond to the upright posts 4, one end of each buffer block 5 is fixedly connected with the upright post 4 corresponding to the buffer block, and the other end of each buffer block 5 is fixedly connected with the cross beam 6;

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a vehicle bridge railing that turns on one's side is prevented in combined multi-angle anticollision, includes concrete foundation (1), its characterized in that: the concrete foundation comprises a concrete base (1), and is characterized in that an anti-collision buffer plate (3) is fixedly mounted on the inner wall of the bottom of the concrete base (1), a buffer plate fixing bolt (14) is movably connected to the left side of the anti-collision buffer plate (3), a buffer spring (2) is fixedly connected to the left side of the anti-collision buffer plate (3), a backing plate (9) is fixedly mounted on the bottom of the buffer spring (2), a bridge deck (13) is fixedly connected to the bottom of the concrete base (1), a bolt (7) is movably connected to the inner wall of the top of the concrete base (1), a stand column (4) is movably connected to the outer wall of the top of the bolt (7), railing bolts (8) are movably connected to the top and the bottom of the stand column (4), buffer blocks (5) are fixedly mounted on the outer walls of the railing bolts (8), and, the upright post (4) is fixedly connected with the two beams (6) through two buffer blocks (5), and the bottom of each beam (6) is fixedly provided with a bracket (10);

the right side of the cross beam (6) is fixedly provided with a connecting sleeve (11), and the inner wall of the connecting sleeve (11) is movably connected with a connecting bolt (12).

2. The combined multi-angle anti-collision vehicle rollover prevention bridge guardrail of claim 1, which is characterized in that: concrete foundation (1) is open-ended cell type concrete foundation (1) in the side direction, and the opening of concrete foundation (1) is one side towards bridge floor (13), and the curb plate of concrete foundation (1) one side dorsad bridge floor (13) is the inclined side board that has certain angle slope, and the incline direction is towards bridge floor (13) direction.

3. The combined multi-angle anti-collision vehicle rollover prevention bridge guardrail of claim 1, which is characterized in that: anticollision buffer board (3) are arranged along concrete foundation (1) extending direction, the bottom of anticollision buffer board (3) and the bottom plate top fixed connection of concrete foundation (1), the top is located concrete foundation (1) roof lower part and is not connected with concrete foundation (1) roof, anticollision buffer board (3) one side of bridge floor (13) dorsad and the right side fixed connection of buffer spring (2), the bottom of buffer spring (2) and the top fixed connection of backing plate (9).

4. The combined multi-angle anti-collision vehicle rollover prevention bridge guardrail of claim 1, which is characterized in that: the inclination angle of one side of the outer side plate of the concrete base (1) back to the direction of the bridge deck (13) is sixty degrees to eighty-five degrees, the inclination angle of one side of the outer side plate of the concrete base (1) facing to the direction of the bridge deck (13) is eighty degrees to ninety degrees, and the thickness of the outer side plate is linearly changed from thick at the bottom to narrow at the top.

5. The combined multi-angle anti-collision vehicle rollover prevention bridge guardrail of claim 1, which is characterized in that: the edge of the bottom plate of the concrete base (1) on the side of the projection of the ground facing the bridge deck (13) exceeds the edge of the top plate on the side of the projection of the ground facing the bridge deck (13) by five to fifteen centimeters.

6. The combined multi-angle anti-collision vehicle rollover prevention bridge guardrail of claim 1, which is characterized in that: buffer spring (2) are forty-five degrees with the angle of concrete foundation (1) bottom plate, every buffer spring (2) constitute a set ofly with backing plate (9), six total groups, every stand (4), every two crossbeams (6) constitute a set ofly with every two buffer blocks (5), three total groups, the interval of buffer spring (2) equals the interval between every two sets of center posts (4) in every three groups, and the water flat line that uses bridge floor (13) is axle evenly distributed, pass through adapter sleeve (11) fixed connection between crossbeam (6) in every group.

7. The combined multi-angle anti-collision vehicle rollover prevention bridge guardrail of claim 1, which is characterized in that: the bottom of the buffer spring (2) is fixedly connected with the top of the backing plate (9), and the bottom of the backing plate (9) is fixedly connected with the top of the bottom plate of the concrete base (1).

8. The combined multi-angle anti-collision vehicle rollover prevention bridge guardrail of claim 1, which is characterized in that: the lower end of the anti-collision buffer plate (3) is connected with a bottom plate of the concrete base (1) through a buffer plate fixing bolt (14), the anti-collision buffer plate (3) is connected with the concrete base (1) in a single side, and the connection is located on one side, back to the bridge floor (13), of the anti-collision buffer plate (3).

9. The combined multi-angle anti-collision vehicle rollover prevention bridge guardrail of claim 1, which is characterized in that: the number of bracket (10) is six in total, and every bracket (10) comprises horizontal support limit and vertical fixed limit, and the top of every horizontal support limit is rather than the bottom fixed connection of buffer block (5) and crossbeam (6) that correspond, every vertical fixed limit left side and rather than the right side fixed connection of the stand (4) that corresponds.

10. The combined multi-angle anti-collision vehicle rollover prevention bridge guardrail of claim 1, which is characterized in that: the upright posts (4) and the cross beams (6) are square steel pipes, the buffer blocks (5) are made of hollow steel, and the projections of the cross beams (6) on the ground are overlapped.