Prefabricated bridge anti-collision guardrail

Abstract

The present invention provides an assembled bridge anti-collision guardrail, which has hollow edges on both sides of the bridge deck, and the anti-collision guardrail comprises: a plurality of U-shaped bases for being clamped on the hollow edges of the bridge deck; and a guardrail assembly for blocking vehicles; each U-shaped base comprises: a first wing plate and a second wing plate that can respectively fit with the upper and lower surfaces of the hollow edges of the bridge deck, and a connecting wing plate connecting the first wing plate and the second wing plate; each U-shaped base is connected to at least one U-shaped base on the side of the bridge deck by a steel strand; the guardrail assembly comprises: guardrail posts and guardrail connectors of the same number as the U-shaped bases, and a plurality of guardrail beams; each guardrail post is vertically fixed to the first wing plate of the U-shaped base by a corresponding guardrail connector, and at least two guardrail beams are fixed between two adjacent guardrail posts.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge protection, and in particular to an assembled bridge anti-collision guardrail. Background Art

[0002] When vehicles are driving on bridges (especially viaducts), in order to ensure the driving safety of vehicles and prevent vehicles from rushing off the bridges due to various reasons and causing accidents, guardrails need to be installed on both sides of the bridge. Existing guardrails are directly installed on the bridge body. Although they can achieve the function of protecting driving safety, when vehicles collide with the guardrails, the bridge body will be damaged, thus creating new safety hazards. Summary of the invention

[0003] The present invention provides an assembled bridge anti-collision guardrail. When a vehicle collides with the anti-collision guardrail, it can prevent the vehicle from rushing out of the bridge while avoiding damage to the bridge body, thereby improving the safety of vehicles driving on the bridge; the tension between the anti-collision guardrails on both sides of the bridge deck is increased, and in the event that a vehicle collides with the anti-collision guardrail, the collision force can be offset, thereby preventing the risk of the anti-collision guardrail falling off the bridge deck.

[0004] The assembled bridge anti-collision guardrail provided by the present invention has hollow edges on both sides of the bridge deck, and the anti-collision guardrail comprises: a plurality of U-shaped bases for clamping on the hollow edges of the bridge deck; and a guardrail assembly for blocking vehicles;

[0005] Each of the U-shaped bases comprises: a first wing plate and a second wing plate capable of respectively fitting with the upper and lower surfaces of the hollow edge of the bridge deck, and a connecting wing plate connecting the first wing plate and the second wing plate; each of the U-shaped bases is connected to at least one of the U-shaped bases on the side of the bridge deck by a steel strand;

[0006] The guardrail assembly includes: guardrail posts and guardrail connectors of the same number as the U-shaped base, and multiple guardrail beams; each of the guardrail posts is vertically fixed to the first wing plate of the U-shaped base through a corresponding guardrail connector, and at least two guardrail beams are fixed between two adjacent guardrail posts.

[0007] Preferably, the first wing panel, the second wing panel and the connecting wing panel are made of steel plates in one piece.

[0008] Preferably, a fastening screw structure capable of passing through the first wing plate and the second wing plate is provided on a side of the U-shaped base close to the connecting wing plate.

[0009] Preferably, a fixing flange is provided on the second wing plate, and expansion screws are driven through the second wing plate and the fixing flange plate, so that the second wing plate is tightly and fitly mounted on the lower surface of the raised edge of the bridge deck.

[0010] Preferably, each of the guardrail posts is a hollow cylindrical body or a rectangular body.

[0011] Preferably, the guardrail post is a hollow cylindrical body, and the corresponding guardrail connecting piece is a hollow cylindrical body that can be threadedly connected to one end of the guardrail post, and the guardrail connecting piece is vertically fixed on the first wing plate.

[0012] Preferably, the guardrail column is a hollow rectangular body, and the corresponding guardrail connecting piece includes: a connecting steel plate and a plurality of triangular rocket leg support plates, the connecting steel plate is fit and fixed to the first wing plate of the U-shaped base, the guardrail column is vertically welded to the connecting steel plate, and a plurality of rocket leg support plates are supported and installed between the side surface of the guardrail column and the upper surface of the connecting steel plate.

[0013] Preferably, the guardrail crossbeam is fixed to the guardrail post by threaded connection, riveting or welding.

[0014] Preferably, a plurality of through holes for installing the steel strands are provided on the first wing plate of each of the U-shaped bases, and the first wing plate of each of the U-shaped bases is connected to the first wing plate of at least one of the U-shaped bases on the bridge-facing side through the steel strands.

[0015] Preferably, rubber pads are provided on the inner side walls opposite to the first wing plate and the second wing plate of each of the U-shaped bases.

[0016] According to the assembled bridge anti-collision guardrail provided by the present invention, a plurality of U-shaped bases are clamped on the hollow edges on both sides of the bridge deck, so that the guardrail assembly is not directly installed on the bridge body. When a vehicle collides with the anti-collision guardrail, the bite force and friction force of the plurality of U-shaped bases connected to the bridge can provide concentrated force to resist the collision, which can avoid damage to the bridge body and improve the safety of vehicles driving on the bridge; the U-shaped base can be covered on the hollow edge of the bridge deck and firmly stuck on the bridge. When a vehicle collides with the anti-collision guardrail, a force couple can be provided through the distance between the first wing plate and the second wing plate to resist the torque generated by the collision, which can avoid damage to the bridge body and protect the driving safety of vehicles on the bridge. The guardrail assembly is fixed to the first wing plate of the U-shaped base through the guardrail column, and at least one guardrail crossbeam is fixed between two adjacent guardrail columns, which is easy to install, and the guardrail assembly is not directly fixed on the bridge body. When a vehicle collides with the guardrail assembly, it can block the vehicle and prevent the vehicle from rushing off the bridge, and at the same time will not cause damage to the bridge body, thereby ensuring the safety of vehicles driving on the bridge; the U-shaped base is connected to at least one of the U-shaped bases on the side of the bridge surface through a steel strand; the use of steel strands to connect at least one pair of the U-shaped bases facing the bridge surface increases the tension between the anti-collision guardrails on both sides of the bridge deck. In the event that a vehicle collides with the anti-collision guardrail, the collision force can be offset to prevent the anti-collision guardrail from falling off the bridge deck.

[0017] Other features and advantages of the embodiments of the present invention will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. Together with the following specific implementations, they are used to explain the embodiments of the present invention, but do not constitute a limitation on the embodiments of the present invention. In the accompanying drawings:

[0019] Figure 1 is a schematic diagram of the installation of an assembled bridge anti-collision guardrail according to an embodiment of the present invention;

[0020] Figure 2 is a side view of an assembled bridge anti-collision guardrail according to an embodiment of the present invention;

[0021] Figure 3 is a side view of an assembled bridge anti-collision guardrail according to another embodiment of the present invention;

[0022] Figure 4 is a schematic structural diagram of an assembled bridge anti-collision guardrail according to another embodiment of the present invention;

[0023] Figure 5 It is a schematic diagram of the arrangement of a U-shaped base in an assembled bridge anti-collision guardrail connected by the steel strand according to an embodiment of the present invention.

[0024] Description of Reference Numerals

[0025] 1 U-shaped base 2 Guardrail assembly

[0026] 101 first wing plate 102 second wing plate

[0027] 103 connecting wing plate 104 fixing flange

[0028] 201 guardrail column 202 guardrail beam

[0029] 203 guardrail connector 204 connecting steel sheet

[0030] 205 rocket leg support plate 3 steel strand DETAILED DESCRIPTION

[0031] The specific implementation of the embodiment of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the embodiment of the present invention, and is not used to limit the embodiment of the present invention.

[0032] The technical solutions in the embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0033] When vehicles are driving on bridges, it is necessary to ensure the safety of the vehicles and prevent them from rushing off the bridges for various reasons. Therefore, guardrails need to be installed on both sides of the bridges. The existing guardrails are directly installed on the bridge body. Although they can achieve the function of protecting driving safety, when vehicles collide with the guardrails, the bridge body will be damaged, thus creating new safety hazards.

[0034] like Figure 1-Figure 5As shown, the present invention provides an assembled bridge anti-collision guardrail, wherein both sides of the bridge deck have hollow edges, and the anti-collision guardrail comprises: a plurality of U-shaped bases 1 for being clamped on the hollow edges of the bridge deck; and a guardrail assembly 2 for blocking vehicles; each of the U-shaped bases 1 comprises: a first wing plate 101 and a second wing plate 102 which can respectively fit with the upper and lower surfaces of the hollow edges of the bridge deck, and a connecting wing plate 103 connecting the first wing plate 101 and the second wing plate 102; each of the U-shaped bases 1 is connected to at least one of the U-shaped bases 1 on the side of the bridge surface through a steel strand 3; the guardrail assembly 2 comprises: guardrail posts 201 and guardrail connectors 203 having the same number as the U-shaped bases 1, and a plurality of guardrail beams 202; each of the guardrail posts 201 is vertically fixed to the first wing plate 101 of the U-shaped base 1 through a corresponding guardrail connector 203, and at least two guardrail beams 202 are fixed between two adjacent guardrail posts 201.

[0035] According to the technical solution of the present invention, the bridge deck has hollow edges on both sides, and the anti-collision guardrail includes: a plurality of U-shaped bases 1 for being clamped on the hollow edges of the bridge deck; and a guardrail assembly 2 for blocking vehicles; the guardrail assembly 2 is installed on the plurality of U-shaped bases 1, and the plurality of U-shaped bases 1 are clamped on the hollow edges on both sides of the bridge deck of the bridge, so that the guardrail assembly 2 is not directly installed on the bridge body. When a vehicle collides with the anti-collision guardrail, the bite force and friction force of the plurality of U-shaped bases 1 connected to the bridge can provide concentrated force generated during the collision, thereby avoiding damage to the bridge body and improving the safety of vehicles driving on the bridge.

[0036] According to the technical solution of the present invention, each of the U-shaped bases 1 includes: a first wing plate 101 and a second wing plate 102 that can respectively fit with the upper and lower surfaces of the edge of the bridge deck, and a connecting wing plate 103 connecting the first wing plate 101 and the second wing plate 102; the U-shaped base 1 can be wrapped around the edge of the bridge deck and firmly stuck on the bridge. When a vehicle collides with the anti-collision guardrail, the distance between the first wing plate 101 and the second wing plate 102 can provide a couple to resist the torque generated during the collision, thereby avoiding damage to the bridge body and protecting the driving safety of vehicles on the bridge.

[0037] According to an embodiment of the present invention, preferably, the first wing plate 101, the second wing plate 102 and the connecting wing plate 103 are made of steel plates in one piece. The sizes of the first wing plate 101, the second wing plate 102 and the connecting wing plate 103 can be adapted to the size of the bridge deck edge, so that the U-shaped base 1 can be firmly fixed to the bridge deck edge, and is not easily damaged by external forces, further improving the safety of use.

[0038] According to one embodiment of the present invention, Figure 2 As shown, a fastening screw structure 105 capable of passing through the first wing plate 101 and the second wing plate 102 is provided on the side of the U-shaped base 1 close to the connecting wing plate 103. The fastening screw structure 105 includes a fastening screw and two fastening nuts. When in use, the U-shaped base 1 is installed on the hollow edge of the bridge deck, and the connecting wing plate 103 is installed at an installation distance from the outer side of the hollow edge of the bridge deck. The fastening screw is passed through the reserved installation holes on the first wing plate 101 and the second wing plate 102, and the two fastening nuts are fastened and installed from both ends of the fastening screw respectively. By tightening the two fastening nuts, the first wing plate 101 and the second wing plate 102 are pressed against the upper and lower surfaces of the hollow edge of the bridge deck to achieve fixed installation of the U-shaped base 1. The fastening screw structure 105 has a simple structure, is easy to install, and can achieve a good fixed installation effect, ensuring safety in use.

[0039] According to another embodiment of the present invention, Figure 3-4 As shown, a fixing flange 104 is provided on the second wing plate 102, and expansion screws are driven through the second wing plate 102 and the fixing flange 104, so that the second wing plate 102 is tightly and closely mounted on the lower surface of the bridge deck hollow edge. This makes the installation of the U-shaped base 1 more secure, and the U-shaped base 1 is not easy to fall off from the bridge deck hollow edge, further improving the safety of the anti-collision guardrail.

[0040] According to the technical solution of the present invention, the guardrail assembly 2 includes: guardrail posts 201 and guardrail connectors 203 of the same number as the U-shaped base 1, and a plurality of guardrail beams 202; each guardrail post 201 is vertically fixed to the first wing plate 101 of the U-shaped base 1 through a corresponding guardrail connector 203, and at least two guardrail beams 202 are fixed between two adjacent guardrail posts 201. The plurality of U-shaped bases 1 are installed at the edge of the bridge deck at a certain interval according to the installation requirements, and the guardrail assembly 2 is installed by correspondingly fixing the plurality of guardrail posts 201 to the first wing plate 101 of the U-shaped base 1, and at least two guardrail beams 202 are fixed between two adjacent guardrail posts 201, which is easy to operate, and the guardrail assembly 2 is not directly fixed on the bridge body. When a vehicle collides with the guardrail assembly 2, it can block the vehicle from rushing down the bridge, and at the same time, it will not cause damage to the bridge body, thereby ensuring the safety of vehicles driving on the bridge.

[0041] According to one embodiment of the present invention, at least two guardrail beams 202 are evenly fixed between two adjacent guardrail posts 201. The guardrail beams 202 can be cylindrical or rectangular column structures, which are easy to install and can achieve better blocking effects.

[0042] According to an embodiment of the present invention, three guardrail beams 202 are evenly installed between two adjacent guardrail posts 201, so that when a vehicle collides, a better blocking effect can be achieved to prevent the vehicle from rushing off the bridge. The three guardrail beams 202 jointly resist the impact force, so that each guardrail beam 202 is subjected to as little impact force as possible, and the guardrail beam 202 is avoided as much as possible from being damaged after being collided, further improving the protection effect and safety of use.

[0043] According to one embodiment of the present invention, the guardrail beam 202 is fixed to the guardrail post 201 by threaded connection, riveting or welding.

[0044] In the case of using threaded connection or riveting, preferably, a mounting screw hole or a rivet hole is set at the position where the guardrail column 201 is installed with the guardrail beam 202, and two mounting screw holes or rivet holes are set at one installation position, and bolts or screws are used for fixing, which makes the installation operation convenient and the fixation reliable.

[0045] According to another embodiment of the present invention, holes may be drilled on the two adjacent guardrail posts 201, and mounting shafts are provided at both ends of the guardrail beam 202. The mounting shafts are embedded in the drilled holes, which enables more convenient assembly and use.

[0046] According to another embodiment of the present invention, a plurality of mounting holes may be correspondingly arranged on the two adjacent guardrail columns 201, and soft ropes may be stretched between the corresponding mounting holes to reduce the weight of the anti-collision guardrail. The plurality of soft ropes may serve as the guardrail crossbeam 202 to provide a buffering force when a vehicle collides, and may further avoid damage to the anti-collision guardrail and the bridge body when the vehicle is blocked.

[0047] According to one embodiment of the present invention, each of the guardrail posts 201 is a hollow cylindrical body or a rectangular body.

[0048] According to one embodiment of the present invention, Figure 2 As shown, the guardrail post 201 is a hollow cylindrical body, and the corresponding guardrail connector 203 is a hollow cylindrical body that can be threadedly connected to one end of the guardrail post 201 , and the guardrail connector 203 is vertically fixed on the first wing plate 101 . Preferably, the guardrail connector 203 is a hollow cylindrical body, which is pre-welded and fixed on the first wing plate 101. The diameter of the guardrail connector 203 is larger than the diameter of the guardrail post 201. The inner wall of the connecting end of the guardrail connector 203 is provided with a connecting thread, and the outer wall of the connecting end of the guardrail post 201 is provided with a connecting thread. The guardrail post 201 is screwed into the guardrail connector 203 for installation, which is easy to use and operate. The guardrail post 201 is installed on the U-shaped base 1 through the guardrail connector 203 and does not directly contact the bridge deck, so that when a vehicle collides with the anti-collision guardrail, the collision force will not directly act on the bridge, thereby avoiding the impact on the bridge body, effectively protecting the bridge structure, and avoiding damage to the bridge structure caused by collision.

[0049] According to another embodiment of the present invention, Figure 3-4 As shown, the guardrail column 201 is a hollow rectangular body, and the corresponding guardrail connector 203 includes: a connecting steel sheet 204 and a plurality of triangular rocket leg support plates 205. The connecting steel sheet 204 is fixedly attached to the first wing plate 101 of the U-shaped base 1, and the guardrail column 201 is vertically welded to the connecting steel sheet 204. A plurality of rocket leg support plates 205 are supported and installed between the side of the guardrail column 201 and the upper surface of the connecting steel sheet 204. The guardrail column 201 is installed on the U-shaped base 1 through the connecting steel sheet 204, and does not directly contact the bridge deck, so that when a vehicle collides with the anti-collision guardrail, the collision force will not directly act on the bridge, avoiding the impact on the bridge body, effectively protecting the bridge structure, and avoiding damage to the bridge structure caused by the collision; the provision of a plurality of rocket leg support plates 205 plays a role in reinforcing the connection between the guardrail column 201 and the connecting steel sheet 204.

[0050] According to another embodiment of the present invention, the height of the rocket leg support plate 205 can be selected as needed, preferably 1 / 4 of the height of the guardrail column 201, which can further save materials while having an effective reinforcement effect.

[0051] According to another embodiment of the present invention, preferably, the connecting steel sheet 204 is fixed to the first wing plate 101 of the U-shaped base 1 by installing rivets, which is easy to operate and firmly fixed, not easy to loosen, thereby ensuring safety in use.

[0052] According to the technical solution of the present invention, Figure 5 As shown, each of the U-shaped bases 1 is connected to at least one of the U-shaped bases 1 on the side of the bridge surface through a steel strand 3; the use of the steel strand 3 to connect at least one pair of the U-shaped bases 1 located opposite to the bridge surface increases the tension between the U-shaped bases 1 on both sides of the bridge surface, and in the event that a vehicle collides with the anti-collision guardrail, the collision force can be offset to prevent the risk of the U-shaped base 1 falling off the bridge surface.

[0053] According to one embodiment of the present invention, a plurality of through holes for installing the steel strands 3 are provided on the first wing plate 101 of each of the U-shaped bases 1, and the first wing plate 101 of each of the U-shaped bases 1 is connected to the first wing plate 101 of at least one of the U-shaped bases 1 on the bridge-facing side through the steel strands 3.

[0054] Preferably, three through holes for installing the steel strands 3 are provided on the first wing plate 101 of each of the U-shaped bases 1, and the U-shaped base 1 is connected to the three U-shaped bases 1 facing the bridge surface through the three through holes; specifically, the middle through hole on the first wing plate 101 of the U-shaped base 1 is connected to the middle through hole on the first wing plate 101 of the opposite U-shaped base 1 through the steel strands 3; the two through holes on both sides of the first wing plate 101 of the U-shaped base 1 are respectively connected to the side holes on the first wing plates 101 of two adjacent U-shaped bases 1 through the steel strands 3, so as to form a steel strand net between the U-shaped bases 1 on both sides of the bridge deck, thereby forming a uniform tension net between the U-shaped bases 1, so as to enhance the overall strength of the bridge anti-collision guardrail and further enhance the safety of use.

[0055] According to one embodiment of the present invention, preferably, rubber pads are arranged on the inner side walls opposite to each other of the first wing plate 101 and the second wing plate 102 of each U-shaped base 1 to increase the static friction between the first wing plate 101 and the second wing plate 102 and the upper and lower surfaces of the bridge deck edge, so as to prevent the U-shaped base 1 from falling off from the bridge deck edge.

[0056] When a vehicle collides with the anti-collision guardrail structure, the guardrail assembly 2 is subjected to impact force, and the guardrail connector 203 of the guardrail assembly 2 pulls the first wing plate 101 of the U-shaped base 1, which easily causes the U-shaped base 1 to bend at the position of the connecting wing plate 103. Therefore, according to one embodiment of the present invention, preferably, a reinforcing plate with an area larger than the connecting wing plate 103 is fixed to the outer side of the connecting wing plate 103 of each U-shaped base 1 to increase the strength of the connecting wing plate 103. When a vehicle collision occurs, the damage to the U-shaped base 1 is minimized, the vehicle can be successfully blocked, and damage to the bridge body can be prevented, thereby further improving the safety of use.

[0057] According to one embodiment of the present invention, preferably, the first wing panel 101 and the second wing panel 102 of the U-shaped base 1 have rectangular edges or arc-shaped edges, so that the first wing panel 101 and the second wing panel 102 have a larger contact area with the upper and lower surfaces of the bridge deck edge, thereby further increasing the friction between the first wing panel 101 and the second wing panel 102 and the upper and lower surfaces of the bridge deck edge, and the installation is more secure. When a vehicle collision occurs, it can better resist the concentrated force generated during the collision, thereby further ensuring the safety of the anti-collision guardrail.

[0058] According to one embodiment of the present invention, a safety rope is built into the inner cavity of the guardrail column 201 and the guardrail beam 202. In the event that the guardrail column 201 and the guardrail beam 202 are broken due to a collision, they will not fall under the bridge and cause a safety hazard under the support of the safety rope. The safety rope can also buffer the collision, further enhancing the safety of use.

[0059] The object of the present invention is to provide an assembled bridge anti-collision guardrail, which comprises: a plurality of U-shaped bases 1 for clamping on the hollow edge of the bridge deck; and a guardrail assembly 2 for blocking vehicles; the guardrail assembly 2 is installed on the plurality of U-shaped bases 1, and the plurality of U-shaped bases 1 are clamped on the hollow edges on both sides of the bridge deck of the bridge, so that the guardrail assembly 2 is not directly installed on the bridge body, and when a vehicle collides with the anti-collision guardrail, the bite force and friction force of the plurality of U-shaped bases 1 connected with the bridge can provide a concentrated force generated during the collision, which can avoid damage to the bridge body and improve the safety of vehicle driving on the bridge; the U-shaped base 1 can be wrapped around the hollow edge of the bridge deck and firmly stuck on the bridge. When a vehicle collides with the anti-collision guardrail, a force couple can be provided through the distance between the first wing plate 101 and the second wing plate 102 to resist the collision. The moment of force can avoid damage to the bridge body and protect the driving safety of vehicles on the bridge; the guardrail assembly 2 is fixed to the first wing plate 101 of the U-shaped base 1 through the guardrail column 201, and at least two guardrail beams 202 are fixed between two adjacent guardrail columns 201, which is easy to install, and the guardrail assembly 2 is not directly fixed on the bridge body. When a vehicle collides with the guardrail assembly 2, it can block the vehicle and prevent the vehicle from rushing off the bridge, and at the same time will not cause damage to the bridge body, thereby ensuring the safety of vehicle driving on the bridge; the U-shaped base 1 is connected to at least one of the U-shaped bases 1 on the side of the bridge surface through the steel strand 3; the steel strand 3 is used to connect at least one pair of the U-shaped bases 1 facing the bridge surface, thereby increasing the tension between the U-shaped bases 1 on both sides of the bridge deck, and in the event of a vehicle colliding with the anti-collision guardrail, the collision force can be offset to prevent the anti-collision guardrail from falling off the bridge surface.

[0060] The optional implementation modes of the embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the embodiments of the present invention are not limited to the specific details in the above implementation modes. Within the technical concept of the embodiments of the present invention, various simple modifications can be made to the technical scheme of the embodiments of the present invention, and these simple modifications all belong to the protection scope of the embodiments of the present invention.

[0061] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the embodiments of the present invention will not further describe various possible combinations.

[0062] In addition, various implementation modes of the embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the embodiments of the present invention, they should also be regarded as the contents disclosed by the embodiments of the present invention.

Claims

1. An assembled bridge anti-collision guardrail, wherein both sides of the bridge deck have hollow edges, It is characterized in that The anti-collision guardrail comprises: a plurality of U-shaped bases (1) for clamping on the hollow edge of the bridge deck; and a guardrail assembly (2) for blocking vehicles; Each of the U-shaped bases (1) comprises: a first wing plate (101) and a second wing plate (102) which can respectively fit with the upper and lower surfaces of the hollow edge of the bridge deck, and a connecting wing plate (103) connecting the first wing plate (101) and the second wing plate (102); each of the U-shaped bases (1) is connected to at least one of the U-shaped bases (1) on the bridge surface side via a steel strand (3); the first wing plate (101), the second wing plate (102) and the connecting wing plate (103) are made of steel plates in one piece; a flange (104) which can pass through the first wing plate (101) and the second wing plate (102) is provided on the side of the U-shaped base (1) close to the connecting wing plate (103). 102), three through holes for installing steel strands (3) are arranged on the first wing plate (101) of each U-shaped base (1); wherein the middle through hole on the first wing plate (101) of the U-shaped base (1) is connected to the middle through hole on the first wing plate (101) of the opposite U-shaped base (1) through the steel strands (3), and the two through holes on both sides of the first wing plate (101) of the U-shaped base (1) are respectively connected to the side holes on the first wing plates 101 of the two adjacent U-shaped bases (1) through the steel strands (3), so as to form a steel strand net between the U-shaped bases (1) on both sides of the bridge deck, thereby forming a uniform tension net between the U-shaped bases (1); The guardrail assembly (2) comprises: guardrail posts (201) and guardrail connectors (203) of the same number as the U-shaped base (1), and a plurality of guardrail crossbeams (202); each of the guardrail posts (201) is vertically fixed to the first wing plate (101) of the U-shaped base (1) via a corresponding guardrail connector (203), and at least two guardrail crossbeams (202) are fixed between two adjacent guardrail posts (201).

2. The assembled bridge anti-collision guardrail according to claim 1, It is characterized in that The second wing plate (102) is provided with a fixing flange (104), and expansion screws are driven through the second wing plate (102) and the fixing flange (104), so that the second wing plate (102) is tightly and closely mounted on the lower surface of the bridge deck edge.

3. The assembled bridge anti-collision guardrail according to any one of claims 1-2, It is characterized in that Each guardrail post (201) is a hollow cylindrical body or a rectangular body.

4. The assembled bridge anti-collision guardrail according to claim 3, It is characterized in that The guardrail post (201) is a hollow cylindrical body, and the corresponding guardrail connecting piece (203) is a hollow cylindrical body that can be threadedly connected to one end of the guardrail post (201), and the guardrail connecting piece (203) is vertically fixed on the first wing plate (101).

5. The assembled bridge anti-collision guardrail according to claim 3, It is characterized in that The guardrail column (201) is a hollow rectangular body, and the corresponding guardrail connecting piece (203) includes: a connecting steel sheet (204) and a plurality of triangular rocket leg support plates (205), wherein the connecting steel sheet (204) is fitted and fixed to the first wing plate (101) of the U-shaped base (1), and the guardrail column (201) is vertically welded to the connecting steel sheet (204), and a plurality of rocket leg support plates (205) are supported and installed between the side surface of the guardrail column (201) and the upper surface of the connecting steel sheet (204).

6. The assembled bridge anti-collision guardrail according to claim 1, It is characterized in that The guardrail crossbeam (202) is fixed to the guardrail post (201) by means of threaded connection, riveting or welding.

7. The assembled bridge anti-collision guardrail according to claim 1, It is characterized in that Rubber pads are provided on the inner side walls opposite to the first wing plate (101) and the second wing plate (102) of each U-shaped base (1).

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