CN212771926U

CN212771926U - High-performance bridge guardrail

Info

Publication number: CN212771926U
Application number: CN202021246363.0U
Authority: CN
Inventors: 彭栋敏; 吴俊宏; 张世辉; 潘仕强; 李晓峰; 刘帆; 章强
Original assignee: Jiangsu Guoqiang Transportation Technology Co ltd
Current assignee: Beijing Shenhuake Traffic Engineering Co ltd; Jiangsu Guoqiang New Materials Technology Co ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-03-23
Anticipated expiration: 2030-06-30

Abstract

The utility model relates to a high performance bridge railing belongs to bridge protection facility field, and it includes a plurality of stands, is connected with a plurality of crossbeams that are on a parallel with the bridge floor setting on each stand jointly, stand and crossbeam all adopt the rectangular steel structure. The utility model discloses have and replace concrete structure support guardrail main part through the rectangle steel construction, because the rectangle steel construction has good toughness, absorb a large amount of kinetic energy when taking place deformation, simultaneously difficult fracture reduces the guardrail fracture and causes great impact force and aggravate the effect of casualties's possibility to the vehicle.

Description

High-performance bridge guardrail

Technical Field

The utility model belongs to the technical field of the technique of bridge protection facility and specifically relates to a high performance bridge railing is related to.

Background

The bridge guardrail is the most main installation device for protecting pedestrians and vehicles from running on the bridge, and in order to prevent vehicles out of control from crossing the bridge, guardrails are arranged on two sides of the bridge.

Most of the existing bridge guardrails are concrete guardrails which are generally arranged on an abutment foundation in a prefabrication and cast-in-place mode.

The above prior art solutions have the following drawbacks: when the vehicle is out of control and rushes to the guardrail, if the vehicle impulsive force is too large, the guardrail is easily broken and gets out of the bridge. Even if the impulsive force of the vehicle is small, the vehicle is easy to be damaged by collision, and casualties are caused, so that the protection effect is not ideal.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, one of the purposes of the utility model is to provide a high performance bridge railing, it has reduced the vehicle and has washed out the off-bridge and with the effect of vehicle damage possibility.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a high performance bridge railing, includes a plurality of stands, is connected with a plurality of crossbeams that are on a parallel with the bridge floor setting on each stand jointly, stand and crossbeam all adopt the rectangle steel construction.

Through adopting above-mentioned technical scheme, because the guardrail main part comprises the rectangle steel construction, the rectangle steel has good toughness, is difficult for the fracture and absorbs a large amount of kinetic energy at the in-process that warp when receiving the striking, blocks clashing of vehicle through the crossbeam to restrict each crossbeam on the bridge through the stand, crossbeam and stand take place deformation simultaneously when receiving the striking, absorb the kinetic energy that comes from the striking, and reduce the possibility that the vehicle was from the bridge.

The present invention may be further configured in a preferred embodiment as: the bottom end of the upright post is fixedly provided with a bottom plate, and the bottom plate is fixedly connected with the abutment foundation through foundation bolts.

Through adopting above-mentioned technical scheme, through pre-buried rag bolt's mode, increased the stability that bottom plate and abutment basis are connected, when the guardrail received the striking, fixed through rag bolt has reduced the stand and has taken place the possibility of separation with the abutment basis when taking place bending deformation.

The present invention may be further configured in a preferred embodiment as: the distance between the adjacent cross beams is less than or equal to 250 mm.

By adopting the technical scheme, the distance between the two columns is less than or equal to 250mm, so that the phenomenon that the wheels cross gaps between the cross beams when the automobile collides with the guardrail, the stand column stretches into the inner sides of the wheels to cause a stumbling phenomenon, secondary accidents occur, and the possibility of surfing the Internet is increased.

The present invention may be further configured in a preferred embodiment as: the cross beam is connected with the stand column through a plurality of anti-blocking blocks, the anti-blocking blocks are two parallel bent steel plates, one bent steel plate is fixedly connected with the top side of the cross beam, and the other bent steel plate is fixedly connected with the bottom side of the cross beam.

Through adopting above-mentioned technical scheme, buckle the steel sheet through the setting and be connected crossbeam and stand as preventing hindering the piece to when each crossbeam receives the striking, absorb certain kinetic energy through the deformation of buckling the steel sheet, reduce the deformation of crossbeam, and reduced the change degree of crossbeam vertical position, further reduced the wheel and crossed the crossbeam, make the stand stretch into the wheel inboard and be the possibility that the vehicle takes place to hinder stumbling.

The present invention may be further configured in a preferred embodiment as: the one end that the steel sheet of buckling is connected with the stand sets up on a parallel with the stand, the steel sheet of buckling passes through built-up connection spare and is connected with the stand, built-up connection spare includes connecting sleeve and connecting nail, the connecting nail includes connecting plate and spliced pole, be equipped with a plurality of joint bulge loops on spliced pole perpendicular to connecting plate setting and the circumference lateral wall, the spliced pole passes in the steel sheet of buckling and stretches into the connecting sleeve, the whole looks adaptation that connecting sleeve's inner chamber and connecting nail and each joint bulge loop formed, connecting sleeve fixed mounting is on the stand.

Through adopting above-mentioned technical scheme, because the spliced pole stretches into in the connecting sleeve with stand fixed mounting, and each joint bulge loop on the spliced pole is respectively in connecting sleeve looks adaptation, when the crossbeam receives the striking and takes place great deformation, the steel sheet of buckling receives the moment of torsion that comes from the crossbeam transmission and produces deformation and take place to deflect, the spliced pole is dragged to the connecting plate this moment, when the spliced pole is dragged to the connecting sleeve outside, each joint bulge loop takes place deformation with the inside wall mutual extrusion of connecting sleeve, thereby absorb a large amount of kinetic energy when making spliced pole and connecting sleeve take place a small amount of displacements, but simultaneously because joint bulge loop takes place relative motion after deformation with the inside wall of connecting sleeve, reduced between crossbeam and the steel sheet of buckling because produce big angle and buckle and take place cracked possibility.

The present invention may be further configured in a preferred embodiment as: the connecting sleeve is divided into a first half cylinder and a second half cylinder which are equal along the axis of the connecting sleeve, and the opposite side walls of the first half cylinder and the second half cylinder are respectively provided with an inserting block and an inserting groove which are mutually matched.

Through adopting above-mentioned technical scheme, because the adapter sleeve divide into half first and half a section of thick bamboo of second, will have the spliced pole of joint bulge loop when being convenient for install and place into the adapter sleeve in, half first and half a section of thick bamboo of second lock is on the spliced pole and penetrates in the stand, the pore wall that penetrates on the stand is spacing to half a first and half a section of thick bamboo of second and prevent half a section of thick bamboo separation of first and second, the adapter sleeve that forms through half a section of thick bamboo of first and half a section of thick bamboo of second lock is spacing to the spliced pole, thereby carry on spacingly through connecting plate and spliced pole to the steel sheet of buckling.

The present invention may be further configured in a preferred embodiment as: the one side of bending steel sheet is kept away from to connecting sleeve from the stand is worn out, the one side that bending steel sheet was kept away from to the stand is equipped with fixed steel sheet, the one end that connecting sleeve passed fixed steel sheet and passed is equipped with the screw thread end, be equipped with fixation nut on the screw thread end.

Through adopting above-mentioned technical scheme, make connecting sleeve run through the stand and pass behind the fixed steel sheet, go up fixation nut to the screwed end top spin, fixation nut supports tightly behind the fixed steel sheet with connecting sleeve taut, makes the connecting plate further compress tightly the stand, and the installation is simple quick, and sound construction.

The present invention may be further configured in a preferred embodiment as: and the fixing nut is tightly abutted with the fixing steel plate and then welded with the fixing steel plate.

Through adopting above-mentioned technical scheme, through fixed steel sheet and fixation nut welding, the nut has reduced when long-term practical because factors such as vibrations and weather take place not hard up possibility.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the guardrail main body is supported by the rectangular steel structure instead of the concrete structure, and the rectangular steel structure has good toughness, so that a large amount of kinetic energy is absorbed when deformation occurs, and meanwhile, the guardrail is not easy to break, and the possibility of aggravating casualties due to the breakage of the guardrail and larger impact force on vehicles is reduced;

2. through setting up the steel sheet of buckling, the steel sheet of buckling is connected crossbeam and stand and is separated the certain distance, has further reduced the wheel and has crossed the crossbeam and contact with the stand and take place to stumble and hinder the phenomenon, causes the possibility of secondary accident, buckles the steel sheet simultaneously and takes place deformation reduction crossbeam deformation volume, and then has reduced the crossbeam and has taken place a large amount of deformations and cracked possibility.

Drawings

Fig. 1 is a schematic view of the guardrail according to the embodiment.

Fig. 2 is a schematic side view of a guardrail structure according to an embodiment.

Fig. 3 is a schematic view of the embodiment for embodying the whole structure of the guard rail.

Fig. 4 is an exploded view of an embodiment for embodying the construction of a composite joint.

Fig. 5 is an enlarged schematic view of a structure at a in fig. 5.

Fig. 6 is a schematic structural view of the embodiment for embodying the rear side of the guard rail.

In the figure, 1, a column; 11. a base plate; 12. anchor bolts; 2. a cross beam; 3. an anti-blocking block; 31. bending the steel plate; 4. a combined connecting piece; 41. a connecting sleeve; 411. a first half cylinder; 412. a second half cartridge; 413. inserting a block; 414. a slot; 42. a connecting plate; 43. connecting columns; 431. clamping the convex ring; 432. a threaded end; 433. fixing a nut; 5. and fixing the steel plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The application discloses high performance bridge railing.

The first embodiment is as follows:

as fig. 1, for the utility model discloses a high performance bridge railing, including a plurality of

stands

1, 1 bottom of each stand is equipped with bottom plate 11 respectively. A plurality of foundation bolts 12 are arranged at corresponding positions on the abutment foundation, and the bottom plate 11 is fixedly connected with the abutment foundation through the foundation bolts 12. The column 1 adopts a rectangular steel pipe with the cross section size of 150mm x 150mm and the height of 1200mm, so that the integral rigidity is ensured. The cross-section is 140mm 80 mm's rectangle steel for use on each stand 1 jointly through preventing four crossbeams 2 of 3 fixedly connected with of piece, each crossbeam 2 all chooses for use, and the equal parallel bridge floor setting of each crossbeam 2, and the interval between the adjacent crossbeam 2 all is less than 250mm to when having reduced the guardrail and having received the vehicle striking, the wheel crosses the clearance between the crossbeam 2, makes stand 1 stretch into the wheel inboard and causes to hinder and trip the phenomenon, and then produces the possibility of secondary accident aggravation injures and deaths.

As shown in fig. 2, the anti-blocking block 3 is formed by two parallel bent steel plates 31, one end of each bent steel plate 31 is parallel to the top wall of the cross beam 2, and the other end of each bent steel plate 31 is parallel to the upright post 1. One end of each of the two bent steel plates 31, which is parallel to the side wall of the upright post 1, is welded to the upright post 1, one of the bent steel plates 31 abuts against and is welded to the top wall of the cross beam 2, and the other bent steel plate 31 abuts against and is welded to the bottom wall of the cross beam 2. The cross beam 2 is protected by the bending steel plate 31 when the guardrail is impacted, and the possibility of secondary accidents caused by fracture due to overlarge deformation of the cross beam 2 is reduced.

The implementation principle of the embodiment is as follows: through the bridge railing structure who constitutes the guardrail main part by the rectangle steel, make the guardrail whole have good toughness, produce the deformation that adds and absorb a large amount of kinetic energy when suffering the striking, reduce the possibility that the structural fracture leads to the secondary accident simultaneously.

Example two:

the difference from the first embodiment is that: referring to fig. 3, the bent steel plates 31 are fixedly connected to the columns 1 through the composite connecting members 4, respectively.

As shown in fig. 4, the combination connection piece 4 includes a connection sleeve 41 and a connection nail, the connection nail is composed of a connection plate 42 and a connection column 43, the connection plate 42 is parallel and located on one side of the connection end portion of the bent steel plate 31 and the upright column 1 far away from the upright column 1, and a plurality of clamping convex rings 431 are fixedly connected to the circumferential side wall of the connection column 43.

As shown in fig. 5, the connecting sleeve 41 penetrates through the column 1 and is fixedly connected with the column 1, the connecting sleeve 41 is divided into a first half cylinder 411 and a second half cylinder 412 which are symmetrical along an axis, opposite side walls of the first half cylinder 411 and the second half cylinder 412 are respectively provided with an inserting block 413 and an inserting slot 414 which are mutually matched, and the shape of an inner cavity of the connecting sleeve 41 formed by the first half cylinder 411 and the second half cylinder 412 is matched with the shapes of the connecting column 43 and the clamping convex ring 431.

As shown in fig. 6, the connecting sleeve 41 penetrates through the column 1 along the horizontal direction, one end of the connecting sleeve 41, which is far away from the bent steel plate 31, penetrates out from the inner side of the column 1, and penetrates through the fixed steel plate 5, which is far away from one side of the bent steel plate 31, of the column 1, the connecting sleeve 41 penetrates through one end of the steel plate and is provided with a threaded end 432, the threaded end 432 is provided with a fixing nut 433, and the fixing nut 433 is connected with the fixed steel plate 5 in a threaded manner and is welded with the.

The implementation principle of the embodiment is as follows: when the bending steel plate 31 and the upright post 1 are installed, firstly, the connecting post 43 penetrates through the bending steel plate 31, the connecting plate 42 is abutted against the bending steel plate 31, then the first half tube 411 and the second half tube 412 are buckled on the connecting post 43, finally, the bending steel plate 31 is moved to enable the connecting sleeve 41 to penetrate through a through hole which is formed in advance on the upright post 1, the sleeve penetrates through the upright post 1 and the steel plate welded on the upright post 1, then, a worker tightens the fixing nuts 433 and welds each fixing nut 433 with the fixing steel plate 5, when the cross beam 2 is impacted and bent and deformed, the connecting end of the cross beam 2 and the upright post 1 deflects and deforms towards the impacted direction, the bending steel plate 31 deflects and deforms along with the fixing nuts, when the deformation occurs, pulling force is generated on corresponding connecting nails, when the connecting post 43 has a tendency of being pulled out of the connecting sleeve 41, the clamping convex ring 431 and the cavity wall of the connecting sleeve 41, meanwhile, the possibility of secondary damage caused by ejection of the connecting nail when the guardrail deforms is reduced through clamping between the clamping convex ring 431 and the connecting sleeve 41.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a high performance bridge railing which characterized in that: including a plurality of stands (1), be connected with a plurality of crossbeams (2) that are on a parallel with the bridge floor setting on each stand (1) jointly, stand (1) and crossbeam (2) all adopt the rectangle steel construction, stand (1) bottom has set firmly bottom plate (11), bottom plate (11) are through rag bolt (12) and abutment basis fixed connection.

2. The high performance bridge railing of claim 1, wherein: the distance between the adjacent cross beams (2) is less than or equal to 250 mm.

3. The high performance bridge railing of claim 1, wherein: the cross beam (2) is connected with the upright post (1) through a plurality of anti-blocking blocks (3), the anti-blocking blocks (3) are two parallel bent steel plates (31), one bent steel plate (31) is fixedly connected with the top side of the cross beam (2), and the other bent steel plate (31) is fixedly connected with the bottom side of the cross beam (2).

4. The high performance bridge railing of claim 3, wherein: buckle steel sheet (31) and stand (1) one end of being connected and set up in a parallel with stand (1), buckle steel sheet (31) and be connected with stand (1) through built-up connection spare (4), built-up connection spare (4) are including connecting sleeve (41) and connection nail, connection nail includes connecting plate (42) and spliced pole (43), spliced pole (43) perpendicular to connecting plate (42) set up and be equipped with a plurality of joint bulge loops (431) on the circumference lateral wall, spliced pole (43) are passed and are buckled steel sheet (31) and stretch into in connecting sleeve (41), the inner chamber of connecting sleeve (41) and the whole looks adaptation of connecting nail and each joint bulge loop (431) formation, connecting sleeve (41) fixed mounting is on stand (1).

5. The high performance bridge railing of claim 4, wherein: the connecting sleeve (41) is divided into a first half cylinder (411) and a second half cylinder (412) which are equal along the axis of the connecting sleeve, and insertion blocks (413) and insertion grooves (414) which are matched with each other are respectively arranged on opposite side walls of the first half cylinder (411) and the second half cylinder (412).

6. The high performance bridge railing of claim 5, wherein: connecting sleeve (41) are worn out from one side of stand (1) keeping away from steel sheet (31) of buckling, one side of keeping away from steel sheet (31) of buckling in stand (1) is equipped with fixed steel sheet (5), the one end that connecting sleeve (41) passed fixed steel sheet (5) and passed is equipped with screw thread end (432), be equipped with fixation nut (433) on screw thread end (432).

7. The high performance bridge railing of claim 6, wherein: and the fixing nut (433) is tightly abutted against the fixing steel plate (5) and then welded with the fixing steel plate (5).