CN212714713U

CN212714713U - Waveform beam guard bar

Info

Publication number: CN212714713U
Application number: CN202021383616.9U
Authority: CN
Inventors: 贾宁; 周志伟; 杨曼娟; 幺瑶
Original assignee: Research Institute of Highway Ministry of Transport
Current assignee: Research Institute of Highway Ministry of Transport
Priority date: 2020-07-14
Filing date: 2020-07-14
Publication date: 2021-03-16
Anticipated expiration: 2030-07-14

Abstract

The application provides a wave form roof beam guardrail relates to road safety protection technical field. The wave-shaped beam guardrail comprises upright posts, a first anti-blocking block, a wave-shaped plate, a reinforcing beam, a second anti-blocking block and an anti-toppling component. The reinforcing beam is arranged on one side, close to the upright posts, of the corrugated plate and extends along the length direction of the corrugated plate. The second anti-blocking block is used for connecting the reinforcing beam and the upright; the first anti-blocking block, the upright post and the second anti-blocking block form a vertical stress body. The anti-toppling component is arranged at the bottom of the upright post and used for preventing the upright post from toppling towards the non-collision side. The utility model provides a wave form roof beam guardrail strengthens respectively on two directions of the longitudinal rigidity of current wave form roof beam guardrail and vertical rigidity, reduces vehicle camber and guardrail deformation after the collision, forms effectual protection to vehicle and driver and crew and guardrail outside structure.

Description

Waveform beam guard bar

Technical Field

The utility model relates to a road safety protection technical field particularly, relates to a wave form roof beam guardrail.

Background

The corrugated beam guardrail is a continuous structure which is formed by splicing corrugated steel guardrail plates and is supported by upright posts. When the vehicle collides with the corrugated steel guardrail plate, the corrugated steel guardrail plate has good collision resistance and an energy absorption function, so that the corrugated steel guardrail plate is not easy to be damaged by collision, and can well protect the vehicle and drivers and passengers.

The four-stage corrugated beam guardrail in the prior art is composed of upright posts 10, anti-blocking blocks 20 and corrugated plates 30, and referring to fig. 1, after a medium-sized passenger car collides, the maximum transverse dynamic displacement extension value W of the guardrail is 1.34m, the maximum dynamic camber equivalent value VI of the vehicle is 2.27m, and the meanings of W and VI are shown in fig. 2. When structures such as lighting lamp posts, traffic sign posts and bridge piers need to be arranged on the outer side of the guardrail, in order to avoid serious damage to vehicles and structures and serious injury to drivers and passengers caused by the fact that the vehicles collide the structures on the outer side after inclining outwards in the guardrail collision process, the distance between the structures on the outer side of the guardrail and the collision face of the guardrail is not less than 2.27 m. Due to the limitation of construction land, the distances between the lighting lamp posts outside the guardrails of a large number of highways, traffic sign posts, piers and the collision-facing surface of the guardrail do not meet the requirement, and when the four-level wave-shaped beam guardrail in the prior art is arranged, obvious potential safety hazards exist for vehicles, drivers and passengers and roadside structures.

When the structure is additionally arranged on the outer side of the guardrail of the operation expressway, the corrugated beam guardrail on the corresponding road section needs to be structurally reinforced so as to reduce the outward inclination of the vehicle and the deformation of the guardrail after the vehicle collides with the guardrail. The prior art often adopts and demolishs original wave form roof beam guardrail, and it is bigger to remodel into intensity, rigidity, warp littleer guardrail structure, and this not only causes the waste of original wave form roof beam guardrail material, improves engineering cost moreover, because construction period is longer, also can produce great influence to highway traffic operation.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of this application provides a need not demolish wave form roof beam guardrail that original wave form roof beam guardrail can make wave form roof beam guardrail crashworthiness reinforcing to solve the technical problem such as material waste, engineering cost height, construction cycle length in the current wave form roof beam guardrail strengthens the implementation mode.

The embodiment of the application provides a wave form roof beam guardrail, including stand, first prevent hindering piece and wave form board to and still include:

the reinforcing beam is arranged on one side, close to the upright posts, of the corrugated plate and extends along the length direction of the corrugated plate;

the second anti-blocking block is used for connecting the reinforcing beam and the upright; the first anti-blocking block, the upright post and the second anti-blocking block form a vertical stress body;

and the anti-toppling component is arranged at the bottom of the upright column and used for preventing the upright column from toppling towards the non-collision side.

In the implementation process, the corrugated plate and the reinforcing beam are used for supporting the integral longitudinal rigidity of the guardrail, and the vertical stress body formed by the first resistance block, the upright post and the second resistance block is used for supporting the integral vertical rigidity of the guardrail. The anti-toppling component further increases the overall vertical rigidity of the guardrail and prevents the upright from toppling towards the non-collision side. Compare in the present wave form roof beam guardrail that only is equipped with stand, first hinder piece and wave form board, the stiffening beam is add in one side that the wave form board is close to the stand to wave form roof beam guardrail in this application, and the stiffening beam prevents through the second that the piece is fixed on the stand that hinders, and the stiffening beam can prevent to puncture the guardrail after the small-size vehicle collision, increases the holistic longitudinal stiffness of guardrail, reduces the small-size vehicle camber and the guardrail deformation after the collision. The second that is located the stand intermediate position prevents blockking and the component of preventing empting of stand bottom makes this application compare in current wave form roof beam guardrail and has better vertical rigidity, is difficult for taking place to empty when being collided. Therefore, the small-sized vehicle is reinforced in the longitudinal rigidity direction and the vertical rigidity direction respectively, the camber and the guardrail deformation of the small-sized vehicle after collision are reduced, and the small-sized vehicle, drivers and passengers and structures outside the guardrail are effectively protected; and has the characteristics of on-site processing and convenient construction.

In one possible implementation, the reinforcing beam is fixed to a middle lower portion of the corrugated plate.

In one possible implementation, the bottom end of the reinforcement beam is lower than the bottom end of the corrugated plate by a predetermined height.

In a possible implementation manner, the second block-preventing block is a hoop structure.

In one possible implementation, the reinforcing beam is a U-beam structure, the opening of the U-beam structure facing the side of the upright;

and an inner lining plate is fixed at the position of the U-shaped beam structure opposite to the upright post and is connected with the hoop structure.

In one possible implementation, the anti-toppling member includes:

the ground anchoring plate is arranged around the periphery of the bottom of the upright post and is fixed on the ground;

the impact side hoop and the non-impact side hoop are arranged at the bottom of the upright post in a surrounding manner and are fixedly connected after being closed; the bottom of the impact side hoop and the bottom of the non-impact side hoop are welded with the ground anchoring plate.

In one possible implementation manner, a stiffening rib is welded on the non-collision side hoop.

In a possible implementation manner, the ground anchoring plate is formed by butting two plate bodies; the side hoop of meeting and colliding is welded on one plate body, and the side hoop of not meeting and colliding is welded on another plate body.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a schematic view of a prior art construction of a corrugated beam guardrail;

FIG. 2 is a schematic diagram showing the change of relevant parameters of a corrugated beam guardrail after being impacted;

FIG. 3 is a flow chart of a method for reinforcing a corrugated beam guardrail according to an embodiment of the present application;

FIG. 4 is a schematic front view of a corrugated beam guardrail according to an embodiment of the present application;

fig. 5 is a rear view of the guard rail structure of the wave beam shown in fig. 4.

Icon: 100-column; 200-a first anti-snag block; 210-corrugated plate-anti-blocking block connecting bolt; 300-a corrugated plate; 400-a stiffening beam; 500-a second anti-snag block; 600-an anti-toppling member; 610-ground anchor plate; 620-impact side hoop; 630-non-impact side hoop; 640-a stiffener; 700-inner lining plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The inventor of this application discovers, closes on the highway section that the guardrail has dangerous structure thing at the roadside, in order to strengthen rigidity and crashproof intensity of this highway section wave form roof beam guardrail, need demolish original wave form roof beam guardrail, and it is bigger to repack into intensity, rigidity, warp littleer guardrail structure, can cause the waste of original wave form roof beam guardrail material like this, improves engineering cost. Therefore, the inventor of the application starts from the fact that the original waveform beam guardrail is not dismantled, analyzes the parts of the existing waveform beam guardrail which are easy to deform due to impact when being collided, and respectively carries out corresponding reinforcing measures on the parts which are easy to deform, thereby reinforcing the whole structure of the waveform beam guardrail.

The method of how to reinforce the corrugated girder guard rail structure will be explained in detail below.

The application wave form roof beam guardrail include stand, first prevent hindering piece and wave form board. The structure of the corrugated beam guardrail is reinforced on the basis of the structure. Fig. 3 is a flow chart of a method for reinforcing a corrugated girder guardrail according to an embodiment of the present application. Referring to fig. 3, the method for reinforcing the corrugated girder guard rail includes the following steps.

S101: one side of the corrugated plate, which is close to the upright posts, is provided with a reinforcing beam, and the reinforcing beam extends along the length direction of the corrugated plate so as to increase the longitudinal rigidity of the corrugated beam guardrail.

S102: arranging a second anti-blocking block to connect the stiffening beam and the upright post; the first anti-blocking block, the upright post and the second anti-blocking block form a vertical stress body.

S103: an anti-toppling component is additionally arranged at the bottom of the upright column to prevent the upright column from toppling towards the non-collision side.

In the implementation process, on the structural basis that the stand column, the first block and the corrugated plate are arranged, the reinforcing beam is additionally arranged on one side, close to the stand column, of the corrugated plate of the corrugated beam guardrail and is fixed on the stand column through the second block, the reinforcing beam can prevent the guardrail from being broken down after a vehicle collides, the integral longitudinal rigidity of the guardrail is increased, and the camber and the deformation of the guardrail after the collision are reduced. The first block and the second block are fixed on the stand column and are arranged in the vertical direction, when a vehicle collides with the guardrail, the first block, the stand column and the second block form a vertical stress body to support the guardrail, so that the reaction force in the vertical direction is formed, and the integral vertical rigidity of the guardrail is increased. Simultaneously, the anti-toppling component of establishing is added to the stand bottom, also can retrain and reduce heeling of vehicle collision in-process stand, further increases the holistic vertical rigidity of guardrail, and then prevents that the stand from toppling over to non-crashproof side.

According to the scheme, the wave-shaped beam guardrail reinforcing method does not need to replace the original wave-shaped beam guardrail, but respectively reinforces the original wave-shaped beam guardrail in two directions of longitudinal rigidity and vertical rigidity, reduces the outward inclination of a vehicle and the deformation of the guardrail after collision, and effectively protects the vehicle, drivers and conductors and structures outside the guardrail, so that the scheme in the application has the advantages of field processing and convenient construction, meanwhile, the occupied space required by the wave-shaped beam guardrail for playing a protective role is smaller, and the effect of saving the land for highway construction is achieved.

In one possible implementation, the step of providing a reinforcing beam on one side of the corrugated plate close to the columns comprises: the reinforcing beam is fixed at the middle lower part of the corrugated plate.

When the small-sized vehicle collides, the collision position is usually the front side of the vehicle head, and because the front side of the vehicle head is located at a lower position, the collision position is mostly located at the middle lower part of the corrugated plate when the small-sized vehicle collides with the corrugated beam guardrail. The reinforcing beam is arranged at the middle lower part of the corrugated plate, so that the guardrail can be prevented from being worn down after the small vehicle collides, and the guardrail is not easy to damage.

In one possible implementation, the bottom end of the reinforcement beam is lower than the bottom end of the corrugated plate by a predetermined height, and the reinforcement beam is detachably coupled to the corrugated plate.

The collision position of the small vehicle and the corrugated plate is mostly arranged at the middle lower part of the corrugated plate, the reinforcing beam can prevent the small vehicle from penetrating the guardrail after collision, but when the impact force is high, the part of the reinforcing beam extending from the lower part of the guardrail is damaged due to the impact force, the damage degree of the corrugated plate is reduced or cannot be damaged, and therefore the reinforcing beam also has the effect of protecting the corrugated plate. Simultaneously because stiffening beam and wave plate can dismantle the connection, so when the stiffening beam suffers destruction and the wave plate impaired when lighter, can only change the stiffening beam, the wave plate is restoreed can, this setting can reduce the maintenance cost of wave beam guardrail effectively.

According to another aspect of the present application, there is also provided a corrugated beam guardrail. FIG. 4 is a schematic front view of a corrugated beam guardrail according to an embodiment of the present application; fig. 5 is a rear view of the guard rail structure of the wave beam shown in fig. 4. Referring to fig. 4 and 5, the corrugated beam guardrail includes columns 100, first anti-snag blocks 200, corrugated plates 300, reinforcing beams 400, second anti-snag blocks 500, and anti-toppling members 600. The post 100 is intended to be fixed to the ground. The first anti-snag 200 is provided on the top end of the pillar 100, and the corrugated plate 300 is fixed on the first anti-snag 200 and fastened by the corrugated plate-anti-snag coupling bolt 210. The reinforcing beam 400 is provided at a side of the corrugated plate 300 adjacent to the columns 100, and the reinforcing beam 400 extends in the length direction of the corrugated plate 300. The second anti-blocking block 500 is used to connect the reinforcing beam 400 and the pillar 100. The first and second anti-snag blocks 200, 100 and 500 form a vertical stress body to support the corrugated plate 300 and the reinforcement beam 400. An anti-toppling member 600 is provided at the bottom of the pillar 100 for preventing the pillar 100 from toppling toward the non-impact side.

In the implementation process, the corrugated plate 300 and the reinforcing beam 400 are used for supporting the longitudinal rigidity of the whole guardrail, and the vertical stress body formed by the first obstruction blocks 200, the upright posts 100 and the second obstruction blocks 500 is used for supporting the vertical rigidity of the whole guardrail. The anti-toppling member 600 further increases the vertical rigidity of the guardrail as a whole, and prevents the upright 100 from toppling to the non-impact side. Compare in the present wave form roof beam guardrail that only is equipped with stand 100, first anti-stop block 200 and wave form board 300, the strengthening beam 400 is add to the wave form roof beam guardrail in one side that wave form board 300 is close to stand 100 in this application, and the strengthening beam 400 is fixed on stand 100 through second anti-stop block 500, and the strengthening beam 400 can prevent to puncture the guardrail after the small-size vehicle collision, increases the holistic longitudinal stiffness of guardrail, reduces the small-size vehicle camber and the guardrail deformation after the collision. The second that is located the stand 100 intermediate position prevents that block 500 and stand 100 bottom prevent empting component 600 makes this application compare in current wave form roof beam guardrail and has better vertical rigidity, is difficult for taking place to empty when being collided. Therefore, the small-sized vehicle is reinforced in the longitudinal rigidity direction and the vertical rigidity direction respectively, the camber and the guardrail deformation of the small-sized vehicle after collision are reduced, and the small-sized vehicle, drivers and passengers and structures outside the guardrail are effectively protected; and has the characteristics of on-site processing and convenient construction.

In one possible implementation, the reinforcement beam 400 is fixed to the middle-lower portion of the corrugated plate 300.

When a small vehicle collides, the collision position is usually the front side of the vehicle head, and since the front side of the vehicle head is located at a lower position, the collision position is mostly located at the middle lower part of the corrugated plate 300 when the small vehicle collides with the corrugated beam guardrail. The reinforcement beam 400 is disposed at the middle and lower portion of the corrugated plate 300, so that it is possible to prevent the guard rail from being worn downward after a collision of a small vehicle, and thus the guard rail is not easily damaged.

In one possible implementation, the bottom end of the reinforcement beam 400 is lower than the bottom end of the corrugated plate 300 by a predetermined height.

The collision position between the small vehicle and the corrugated plate 300 is mostly in the middle lower part of the corrugated plate 300, the reinforcement beam 400 can prevent the guard rail from being penetrated downwards after the small vehicle collides, but when the collision force is large, the part of the reinforcement beam 400 extending from the lower part of the guard rail is damaged by the impact force, the damage degree of the corrugated plate 300 is reduced or not damaged, and therefore, the reinforcement beam 400 also has the function of protecting the corrugated plate 300. Meanwhile, the reinforcing beam 400 is detachably connected with the upright 100, so that when the reinforcing beam 400 is damaged and the corrugated plate 300 is damaged and light, only the reinforcing beam 400 can be replaced, and the corrugated plate 300 can be repaired, so that the maintenance cost of the corrugated beam guardrail can be effectively reduced.

In one possible implementation, the second block 500 is a hoop structure. The stiffening beam 400 is a U-beam structure that opens toward the side of the column 100. An inner lining plate 700 is fixed at the position of the U-shaped beam structure opposite to the upright post 100, and the inner lining plate 700 is connected with the hoop structure. As one embodiment, the inner liner 700 may be fixed to the reinforcement beam 400 by bolts. It should be noted that the inner lining 700 may also be connected to the reinforcement beam 400 by welding or other connection means.

In the above implementation process, the second anti-blocking block 500 adopts a hoop structure, and the hoop structure can be directly sleeved on the column 100, so that the installation is convenient. Due to the design of the inner lining plate 700, the second anti-blocking block 500 can be conveniently connected to one side of the reinforcing beam 400 close to the upright 100, and the arrangement of bolts on the collision surface of the reinforcing beam 400 is avoided, so that the protection effect of the corrugated plate 300 is better. The reinforcing beam 400 is of a U-shaped beam structure, and a cavity formed by the U-shaped beam structure and the lining plate 700 can play a certain buffering role in the direction perpendicular to the surface of the corrugated plate 300 when the corrugated plate 300 receives collision impact, so that the protection effect of the corrugated plate 300 is further improved.

In one possible implementation, the anti-toppling member 600 includes a ground anchoring plate 610, a collision-facing side hoop 620, and a non-collision-facing side hoop 630. The ground anchoring plate 610 is arranged around the bottom of the upright 100 and fixed on the ground. In one possible embodiment, the ground anchor plate 610 may take the form of a flange and be secured to the ground by fastening bolts.

Bolt holes for penetrating bolts are reserved in the impact side hoop 620 and the non-impact side hoop 630, and the impact side hoop 620 and the non-impact side hoop 630 are arranged at the bottom of the upright post 100 in a surrounding manner and fixedly connected through bolts after being installed in place. The bottom of the impact side hoop 620 and the non-impact side hoop 630 are welded on the ground anchoring plate 610. The ground anchor plate 610 is fixed to the ground by chemical anchors. In one possible embodiment, the ground anchor plate 610 may be fixed to the ground by means of embedded anchor bolts.

In one embodiment, the ground anchor plate 610 is divided into two plates that can be butted together. The impact side anchor ear 620 is pre-welded to one panel, and the non-impact side anchor ear 630 is pre-welded to the other panel. During installation, after the two plate bodies are butted, the impact side hoop 620 and the non-impact side hoop 630 are in a state of being enclosed together. After the impact side hoop 620 and the non-impact side hoop 630 are connected through bolts, the ground anchoring plates 610 are fixed on the ground through chemical anchor bolts. The embodiment is suitable for construction scenes in which welding operations on the engineering site are forbidden.

In one possible implementation, stiffening ribs 640 are welded to the non-impact side hoop 630.

In the implementation process, the stiffening ribs play a role in reinforcing the upright 100, restrain and reduce the inclination of the upright 100 in the vehicle collision process, and increase the overall vertical rigidity of the guardrail.

According to the scheme, the corrugated beam guardrail and the corrugated beam guardrail reinforcing method are respectively reinforced in the two directions of longitudinal rigidity and vertical rigidity of the existing corrugated beam guardrail, the outward inclination of a vehicle after collision and the deformation of the guardrail are reduced, and effective protection is formed on the vehicle, drivers and passengers and structures outside the guardrail. Original wave form roof beam guardrail need not be demolishd to this application, can implement on current wave form roof beam guardrail to have the convenient characteristics of site operation, consequently this application can solve the extravagant, engineering cost height, the construction cycle length class of material among the current wave form roof beam guardrail strengthening implementation mode.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

In the description of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally placed when products of the application are used, and are used only for convenience in describing the application and simplifying the description, but do not indicate or imply that the devices or elements to be referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Claims

1. The utility model provides a wave form roof beam guardrail, includes stand, first hinders piece and wave form board, its characterized in that still includes:

2. A corrugated beam guardrail as claimed in claim 1, wherein the reinforcing beam is fixed to a middle lower portion of the corrugated plate.

3. A corrugated beam guardrail as claimed in claim 2, wherein the bottom end of the reinforcing beam is lower than the bottom end of the corrugated plate by a predetermined height.

4. A waveform beam guardrail as claimed in any one of claims 1 to 3, wherein the second block is a hoop structure.

5. A waveform beam guard rail according to claim 4 wherein the reinforcing beam is a U-beam structure, the U-beam structure opening towards the side of the upright;

6. A waveform beam guardrail according to claim 4, wherein the anti-toppling member comprises:

7. A waveform beam guard rail as claimed in claim 6 wherein stiffening ribs are welded to the non-impact side hoop.

8. A waveform beam guardrail as claimed in claim 6, wherein the ground anchorage plate is formed by butt-jointing two plate bodies; the side hoop of meeting and colliding is welded on one plate body, and the side hoop of not meeting and colliding is welded on another plate body.