CN216474497U - Combined bridge guardrail - Google Patents

Abstract

The utility model belongs to the technical field of bridge engineering, and relates to a combined bridge guardrail, which comprises installation bottom frames fixedly installed on two sides of a bridge, wherein a main guardrail steel plate is fixedly installed on the installation bottom frames, a steel plate frame is installed on the outer side of the main guardrail steel plate, and the bottom of the steel plate frame is vertically fixed with the end surface of the installation bottom frame; a plurality of supporting frames are arranged between the main guardrail steel plate and the steel plate frame, and a reinforcing mesh is obliquely arranged between the adjacent supporting frames. Through the outside installation steel plate frame at the main guardrail steel sheet, and install a plurality of support frames between the two, the reinforcing bar net is installed in the slope between the adjacent support frame, fixes the bottom of steel plate frame and main guardrail steel sheet on the road surface through the installation chassis, and it is fixed to be the protection from top to bottom to the bridge both sides, can effectively improve the effect that the bridge both sides blocked the vehicle, improves the dynamics of bridge to the anti striking of vehicle, avoids the vehicle because of inertia too big bridge floor that drops.

Description

Combined bridge guardrail

Technical Field

The utility model belongs to the technical field of bridge engineering, relates to the technical field of bridge guardrails, and particularly relates to a combined bridge guardrail.

Background

At present, guard rails are usually arranged on two side edges of a bridge to increase the safety of the bridge in traffic. Generally, the guard rail includes a beam type guard rail and a wall type guard rail. Wherein, beam column formula guardrail is the steel construction usually, stands in beam slab edge and sets up to a plurality ofly, and the railing is worn to establish between the beam column, and beam column bottom links together with the base of burying in beam slab concrete layer. However, the guardrail in this way is not enough in mechanical strength due to the structure, cannot meet the protection requirements on the vehicle, is high in speed and impact force of the vehicle, and is easy to have potential safety hazards; and because the inertia is great during the vehicle traveles, simple rigidity guardrail major part is single bracing piece, and the protective effect is poor, and the vehicle easily falls from the bridge floor, causes major accident. The wall guardrail is usually of a concrete structure, so that the wall guardrail is heavy in weight, large in occupied area and poor in permeability, and cannot relieve visual fatigue and mental stress of a driver.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide a combined bridge guardrail which can effectively block out-of-control vehicles impacting a bridge and avoid major accidents caused by the falling of the vehicles from a bridge floor.

The purpose of the utility model is solved by the following technical scheme:

the combined bridge guardrail comprises installation bottom frames fixedly installed on two sides of a bridge, main guardrail steel plates are fixedly installed on the installation bottom frames, steel plate frames are installed on the outer sides of the main guardrail steel plates, and the bottoms of the steel plate frames are vertically fixed with the end faces of the installation bottom frames; a plurality of support frames are installed between the main guardrail steel plates and the steel plate frames, and reinforcing mesh is obliquely installed between the adjacent support frames.

Further, the whole steel plate frame is in a right trapezoid shape, and the included angle theta is 21-27 degrees.

Further, the inboard of main guardrail steel sheet sets up buffer block and anticollision mound, anticollision mound fixed mounting is on the inboard road surface of bridge, the buffer block is located the clearance of predetermineeing between anticollision mound and the main guardrail steel sheet.

Furthermore, the anti-collision pier is of a concrete structure and is fixedly arranged on the road surface on the inner side of the bridge through a shear connector.

Furthermore, the buffer block is made of elastic materials.

Furthermore, the both marginal areas of reinforcing bar net are provided with the elasticity reinforcing bar, still be provided with the strengthening rib on the reinforcing bar net, just the strengthening rib is provided with the triangle mount with the junction of reinforcing bar net, the triangle mount is fixed with strengthening rib, reinforcing bar net and is welded.

Furthermore, the strengthening rib is provided with the second strengthening rib that is "X" type structure including setting up a plurality of first strengthening ribs between the elastic reinforcement perpendicularly between the adjacent first strengthening rib.

Furthermore, the tail end of the reinforcing mesh is fixedly welded at the joint of the steel plate frame and the installation underframe.

Further, the installation chassis is installed on the road surface of bridge both sides through expansion bolts or adoption welded fastening's mode, and the tip of one side extension steel bed frame of installation chassis.

Furthermore, concrete is poured between the steel plate frame and the main guardrail steel plate.

Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects: the steel plate frame is arranged on the outer side of the main guardrail steel plate, a plurality of support frames are arranged between the main guardrail steel plate and the main guardrail steel plate, a reinforcing mesh is obliquely arranged between the adjacent support frames, and the steel plate frame and the bottom of the main guardrail steel plate are fixed on a road surface through the installation bottom frame; the reinforcing mesh and the support frame support and fix the steel plate frame and the main guardrail steel plate, the overall strength and stability of the guardrail structure can be improved, the upper and lower protection and fixation can be realized on the two sides of the bridge, the blocking effect of the two sides of the bridge on vehicles can be effectively improved, the impact resistance of the bridge on the vehicles is improved, and the bridge floor falling of the vehicles due to overlarge inertia is avoided.

In addition, the buffer block and the anti-collision pier are arranged on the inner side of the main guardrail steel plate, when a vehicle rushes to the outer side of the bridge, the anti-collision pier blocks the lower part of the vehicle to play a role in protecting a first layer, and then the main guardrail steel plate and the steel plate frame positioned on the outer side of the main guardrail steel plate play a role in protecting a second layer on the vehicle, so that double-layer protection is realized, and the safety of the guardrail is effectively improved; simultaneously, still set up strengthening rib and triangle mount on the reinforcing bar net, the elastic reinforcement carries out the elasticity protection to the both ends of reinforcing bar net, when the vehicle strikes the steel plate frame, plays certain cushioning effect to the vehicle through the elastic reinforcement, improves the anti external force of hitting of steel plate frame through strengthening rib and triangle mount.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description, serve to explain the principles of the utility model.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic structural view of a combined bridge railing according to the present invention;

fig. 2 is a schematic view of a reinforcing mesh structure provided in the present invention.

Wherein: 1. a main guardrail steel plate; 2. installing a bottom frame; 3. a steel plate frame; 4. a buffer block; 5. anti-collision piers; 11. a support frame; 12. a reinforcing mesh; 13. elastic reinforcing steel bars; 131. reinforcing ribs; 132. a triangular fixing frame; 14. and (3) concrete.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of structures consistent with certain aspects of the utility model, as detailed in the appended claims.

In order to make those skilled in the art better understand the technical solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and examples.

Referring to fig. 1-2, the utility model provides a combined bridge guardrail, which comprises installation bottom frames 2 fixedly installed on two sides of a bridge, wherein a main guardrail steel plate 1 is fixedly installed on the installation bottom frames 2, a steel plate frame 3 is installed on the outer side of the main guardrail steel plate 1, and the bottom of the steel plate frame 3 is vertically fixed with the end surface of the installation bottom frame 2; a plurality of supporting frames 11 are arranged between the main guardrail steel plates 1 and the steel plate frames 3, and reinforcing mesh 12 is obliquely arranged between the adjacent supporting frames 11.

Further, the steel plate frame 3 is wholly in the shape of a right trapezoid, and the included angle theta is 21-27 degrees, so that the overall strength of the structure can be improved, and the steel plate frame has the advantages of saving materials, reducing wind resistance, being attractive in appearance and convenient to install in the later period.

Further, the inboard of main guardrail steel sheet 1 sets up buffer block 4 and anticollision mound 5, anticollision mound 5 fixed mounting is on the inboard road surface of bridge, buffer block 4 is located the preset clearance between anticollision mound 5 and the main guardrail steel sheet 1.

Further, the anti-collision pier 5 is of a concrete structure and is fixedly installed on the road surface on the inner side of the bridge through a shear connector.

Further, the buffer block 4 is made of an elastic material.

Furthermore, the two edge regions of the mesh reinforcement 12 are provided with elastic steel bars 13, so that the two ends of the mesh reinforcement 12 are elastically protected, and when a vehicle impacts on the steel plate frame 3, the vehicle is buffered through the elastic steel bars 13; still be provided with strengthening rib 131 on the reinforcing bar net 12, just the junction of strengthening rib 131 and reinforcing bar net 12 is provided with triangle mount 132, improves the anti external force of hitting of steel plate frame 3 through strengthening rib 131 and triangle mount 132.

Further, strengthening rib 131 is provided with the second strengthening rib that is "X" type structure including setting up a plurality of first strengthening ribs between elastic reinforcement 13 perpendicularly between the adjacent first strengthening rib to improve the anti external impact strength of steel plate frame 3.

Further, the tail ends of the reinforcing mesh 12 are fixedly welded at the joint of the steel plate frame 3 and the installation underframe 2.

Further, when the bridge deck is of a concrete structure, the installation underframe 2 is fixedly installed on the road surfaces at two sides of the bridge through expansion bolts, and one side of the installation underframe 2 extends out of the end part of the steel plate frame 3; when the bridge deck is made of a steel structure, the installation underframe 2 is welded and fixed on the road surfaces of two sides of the bridge, and one side of the installation underframe 2 extends to the end part of the steel plate frame 3.

Further, concrete 14 has been poured between steel plate frame 3 and the main guardrail steel sheet 1, and concrete 14 fills between main guardrail steel sheet 1 and the steel plate frame 3, and the punishment nature of installation between multiplicable steel plate frame 3 and its protection frame plate and the main guardrail steel sheet 1.

This combination formula bridge railing, through the both sides of installation chassis 2 fixed mounting at the bridge, reinforcing bar net 12 supports fixedly between 3 and the main guardrail steel sheet 1 steel sheet frame, when the vehicle striking is on steel sheet frame 3, play certain cushioning effect to the vehicle through elastic reinforcement 13, improve steel sheet frame 3's anti external impact dynamics through strengthening rib 131 and triangle mount 132, the both ends welding of support frame 11 is between main guardrail steel sheet 1 and steel sheet frame 3, can effectively improve the effect that the bridge both sides blocked the vehicle, improve the anti impact dynamics of bridge to the vehicle, avoid the vehicle because of inertia too big bridge floor that drops.

In summary, the combined bridge steel guard rail is fixedly installed on the road surface on the two sides of the bridge, the whole steel plate frame 3 is in a right trapezoid shape, and tan θ is 0.4, and the specific installation process is as follows:

firstly, mounting an installation underframe 2 on a road surface in an expansion bolt (concrete bridge surface) or welding and fixing (steel structure bridge surface) mode, then mounting a main guardrail steel plate 1 on the upper end surface of the installation underframe 2 in a welding and fixing mode, mounting a steel plate frame 3 on the outer side of the main guardrail steel plate 1, and fixing the steel plate frame 3 and the bottom of the main guardrail steel plate 1 on the road surface through the installation underframe 2; finally, set up support frame 11 and the reinforcing bar net 12 of slope form between steel sheet frame 3 and main guardrail steel sheet 1, reinforcing bar net 12 and support frame 11 support fixedly between steel sheet frame 3 and the main guardrail steel sheet 1, can improve the holistic intensity of guardrail structure and stability, and it is fixed to be protection from top to bottom to the bridge both sides, has solved current bridge guardrail and has blocked the effect poor, lead to the vehicle to easily rush out the problem that the bridge floor falls because of inertia in the accident to the vehicle protection.

In addition, still can set up buffer block 4 and anticollision mound 5 in main guardrail steel sheet 1's inboard, when the vehicle dashes the outside to the bridge, the guard action of first layer is played by the lower part that anticollision mound 5 intercepted the vehicle, and then plays the second floor guard action to the vehicle by the beam column formula guardrail (comprising main guardrail steel sheet 1 and steel sheet frame 3) that is located the outside again, has realized double-deck protection to the security of guardrail has effectively been improved.

Preferably, the anti-collision pier 5 is fixedly installed on the road surface on the inner side of the bridge, and the buffer block 4 is located in a preset gap between the anti-collision pier 5 and the main guardrail steel plate 1; the anti-collision pier 5 is of a concrete structure, and a steel plate at the bottom of the anti-collision pier is arranged on the road surface at the inner side of the bridge through shear connectors in various forms such as studs or perforated steel plate connectors; the buffer block 4 is made of an elastic material, preferably rubber.

The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model.

It is to be understood that the present invention is not limited to what has been described above, and that various modifications and changes may be made without departing from the scope thereof. The scope of the utility model is limited only by the appended claims.

Claims (9)

1. The combined bridge guardrail is characterized by comprising installation bottom frames (2) fixedly installed on two sides of a bridge, wherein main guardrail steel plates (1) are fixedly installed on the installation bottom frames (2), steel plate frames (3) are installed on the outer sides of the main guardrail steel plates (1), and the bottoms of the steel plate frames (3) are vertically fixed with the end faces of the installation bottom frames (2); a plurality of support frames (11) are arranged between the main guardrail steel plate (1) and the steel plate frame (3), and a reinforcing mesh (12) is obliquely arranged between the adjacent support frames (11); the inboard of main guardrail steel sheet (1) sets up buffer block (4) and anticollision mound (5), anticollision mound (5) fixed mounting is on the road surface of bridge inboard, buffer block (4) are located the predetermined clearance between anticollision mound (5) and main guardrail steel sheet (1).

2. The combined bridge guardrail of claim 1, wherein the steel plate frame (3) is in a right trapezoid shape as a whole, and the included angle θ is 21-27 degrees.

3. The combined bridge railing of claim 1, wherein the anti-collision piers (5) are of concrete structure and are fixedly mounted on the road surface on the inner side of the bridge through shear connectors.

4. The modular bridge railing of claim 1, characterised in that the buffer block (4) is made of an elastic material.

5. The combined bridge railing of claim 1, wherein the reinforcing mesh (12) is provided with elastic reinforcing bars (13) at two edge regions thereof, the reinforcing mesh (12) is further provided with reinforcing ribs (131), a triangular fixing frame (132) is arranged at the joints of the reinforcing ribs (131) and the reinforcing mesh (12), and the triangular fixing frame (132) is fixedly welded with the reinforcing ribs (131) and the reinforcing mesh (12).

6. The modular bridge railing of claim 5, wherein the reinforcing bars (131) include a plurality of first reinforcing bars vertically disposed between the elastic reinforcing bars (13), and a second reinforcing bar having an X-shaped structure is disposed between adjacent first reinforcing bars.

7. The modular bridge railing of claim 5, wherein the ends of the reinforcing mesh (12) are fixedly welded to the connection between the steel plate frame (3) and the mounting base frame (2).

8. The combined bridge railing of claim 1, wherein the mounting underframe (2) is installed on the road surface on both sides of the bridge through expansion bolts or by welding, and one side of the mounting underframe (2) extends out of the end of the steel plate frame (3).

9. The modular bridge railing of claim 1, characterised in that concrete (14) is poured between the steel plate frame (3) and the main railing steel plate (1).

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