Steel structure for reinforcing arch bridge

Abstract

The utility model provides a steel structure for reinforcing an arch bridge, which comprises an assembly bridge floor, a vertical rod handrail fixedly connected to the upper end of the assembly bridge floor, an extending outer rod fixedly connected to the right end of the assembly bridge floor, an upper reinforcing inclined rod fixedly connected to one end of the vertical rod handrail close to the extending outer rod, and a lower reinforcing inclined rod fixedly connected to the other end of the vertical rod handrail. The right end of the assembly bridge floor is fixedly connected with a lower reinforcing inclined rod, the lower reinforcing inclined rod is located under the extending outer rods, and the ends, close to the extending outer rods, of the upper reinforcing inclined rod and the lower reinforcing inclined rod are fixedly connected with connecting square pieces. The upper reinforcing inclined rods and the lower reinforcing inclined rods are arranged on the upper portions and the lower portions of the extending outer rods, the upper reinforcing inclined rods and the lower reinforcing inclined rods are matched with the extending outer rods to form a plurality of supporting stress structures at the side ends of the vertical rod handrails, the upper reinforcing inclined rods and the lower reinforcing inclined rods are matched with the extending outer rods, the triangular pressure resistance principle can be utilized, and then the use efficiency of the assembled bridge deck is improved.

Description

Technical Field

[0001] The utility model relates to a steel structure for strengthening and reinforcing an arch bridge, belonging to the technical field of assembling bridge bodies. Background Art

[0002] An arch bridge is a bridge in a vertical plane that uses an arch as the primary load-bearing structural component. If a surface in a powder layer within a container can withstand the pressure of the powder above without transmitting this pressure to the surface below, this surface is called an arch bridge. An arch bridge is an upwardly convex curved surface, with the maximum principal stress acting along the arch surface, and the minimum principal stress along the vertical direction of the arch is zero.

[0003] Chinese patent number CN113737629A discloses a corrugated steel arch bridge comprising a plurality of piers disposed on a foundation. Each pier has embedded components, and a corrugated steel arch bridge assembly is fixedly connected between the piers. The corrugated steel arch bridge assembly comprises at least one corrugated plate arch ring and a plurality of corrugated supporting longitudinal plates. The single or multiple corrugated plate arch rings have curvature to increase the overall flexural rigidity and endurance of the bridge, thereby providing the bridge with good pressure-bearing performance and a large span.

[0004] Multiple vertical handrails are set on both sides of the assembled bridge deck to play a safety protection role. When the vertical handrails are placed vertically above the assembled bridge deck, the protective force of the vertical handrails will be affected as the service life gradually increases and the pressure exerted on the vertical handrails by people crossing the bridge.

[0005] Therefore, a steel structure for strengthening and reinforcing an arch bridge is proposed. Utility Model Content

[0006] In view of this, the present invention provides a steel structure for strengthening and reinforcing an arch bridge to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial option.

[0007] The technical solution of the present utility model is achieved as follows: a steel structure for strengthening and reinforcing an arch bridge includes an assembled bridge deck, the upper end of the assembled bridge deck is fixedly connected to a vertical pole handrail, the right end of the assembled bridge deck is fixedly connected to an extended outer pole, the assembled bridge deck and the extended outer pole are in a corresponding vertical state, the end of the vertical pole handrail close to the extended outer pole is fixedly connected to an upper strengthening diagonal pole, the right end of the assembled bridge deck is fixedly connected to a lower strengthening diagonal pole, the lower strengthening diagonal pole is located directly below the extended outer pole, and the ends of the upper strengthening diagonal pole and the lower strengthening diagonal pole close to the extended outer pole are fixedly connected to connecting square pieces.

[0008] Further preferably, connecting bolts are installed between the two connecting square plates and the extended outer rod, and nuts are installed at the lower ends of the connecting bolts.

[0009] Further preferably, the right end of the vertical pole handrail is fixedly connected to a horizontal connecting rod, and the horizontal connecting rod is located between the upper reinforcing oblique rod and the extended outer rod.

[0010] Further preferably, the upper end of the upright handrail is fixedly connected to a lighting bulb, and the right end of the assembly bridge deck is fixedly connected to a supporting mesh.

[0011] Further preferably, the supporting mesh surface is located directly above the extended outer rod, and the right end of the assembled bridge deck is fixedly connected to a protective inclined lower plate.

[0012] Further preferably, the lower plate of the protective slope is located outside the extended outer rod and the supporting mesh surface, and the front and rear ends of the assembly bridge deck are fixedly connected to the assembly bridge tower.

[0013] Further preferably, the two assembly bridge towers are arranged front-to-back symmetrically, and the assembly bridge deck is installed on the river surface.

[0014] Further preferably, the assembled bridge tower is installed on the riverbed, and the lower plate of the protective slope is located above the river surface.

[0015] The embodiment of the present invention has the following advantages due to the adoption of the above technical solution:

[0016] 1. This solution can set extended outer rods on both sides of the assembled bridge deck that cooperate with the vertical pole handrails. Upper and lower reinforcing diagonal rods are set above and below the extended outer rods. The upper and lower reinforcing diagonal rods cooperate with the extended outer rods to form multiple supporting force structures at the side ends of the vertical pole handrails. The upper and lower reinforcing diagonal rods cooperate with the extended outer rods to utilize the triangular compressive resistance principle to improve the protective ability of the vertical pole handrails and avoid the risk of tipping over, which is beneficial to ensuring the protective ability of the vertical pole handrails for pedestrians, thereby enhancing the utilization efficiency of the assembled bridge deck.

[0017] 2. When the assembled bridge deck is installed on the river surface, supporting mesh surfaces can be set on multiple extended outer rods, and the protective space on both sides of the assembled bridge deck can be widened to expand the safety space of the assembled bridge deck. Protective inclined lower plates are set on both sides of the assembled bridge deck. The inclined surface of the protective inclined lower plate is set outside the supporting mesh surface, and the lower reinforcing inclined rods, extended outer rods and supporting mesh surfaces are all enclosed on the inner side of the protective inclined lower plate to form an isolation barrier between them and the water in the river surface, thereby reducing the corrosiveness of the water on the outer reinforcement components of the assembled bridge deck and extending its service life.

[0018] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1 This is a schematic diagram of the axial side structure of the arch bridge of the present utility model;

[0021] Figure 2 This is a structural schematic diagram of the arch bridge of the utility model located above the river surface;

[0022] Figure 3 This is an enlarged structural diagram of the assembled bridge deck of the present utility model;

[0023] Figure 4 For the utility model Figure 2 Schematic diagram of the partially cutaway and enlarged structure of the mid-assembly bridge deck;

[0024] Figure 5 For the utility model Figure 4 Schematic diagram of the structure of the middle extended outer rod.

[0025] Figure numerals: 1. Assembled bridge deck; 2. Assembled bridge tower; 3. Vertical pole handrail; 4. Horizontal connecting rod; 5. Upper reinforcing diagonal rod; 6. Extended outer rod; 7. Connecting square plate; 8. Lower reinforcing diagonal rod; 9. Support mesh; 10. Protective lower plate of inclined plane; 11. Connecting bolts; 12. Lighting bulb. DETAILED DESCRIPTION

[0026] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0027] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] Example 1

[0029] like Figure 1-5As shown, an embodiment of the utility model provides a steel structure for strengthening and reinforcing an arch bridge, including an assembled bridge deck 1, the upper end of the assembled bridge deck 1 is fixedly connected to a vertical pole handrail 3, the right end of the assembled bridge deck 1 is fixedly connected to an extended outer rod 6, the assembled bridge deck 1 and the extended outer rod 6 are in a corresponding vertical state, the end of the vertical pole handrail 3 close to the extended outer rod 6 is fixedly connected to an upper strengthening diagonal rod 5, the right end of the assembled bridge deck 1 is fixedly connected to a lower strengthening diagonal rod 8, the lower strengthening diagonal rod 8 is located directly below the extended outer rod 6, and the ends of the upper strengthening diagonal rod 5 and the lower strengthening diagonal rod 8 close to the extended outer rod 6 are both fixedly connected to a connecting square piece 7.

[0030] A connecting bolt 11 is installed between the two connecting square pieces 7 and the extended outer rod 6, and a nut is installed at the lower end of the connecting bolt 11. The right end of the vertical pole handrail 3 is fixedly connected to the horizontal connecting rod 4, and the horizontal connecting rod 4 is located between the upper reinforcing diagonal rod 5 and the extended outer rod 6. The upper end of the vertical pole handrail 3 is fixedly connected to the lighting lamp ball 12. The front and rear ends of the assembled bridge deck 1 are fixedly connected to the assembled bridge tower 2. The two assembled bridge towers 2 are symmetrically arranged front to back. The assembled bridge deck 1 is installed on the river surface, the assembled bridge tower 2 is installed on the riverbed, and the protective inclined lower plate 10 is located above the river surface.

[0031] Example 2

[0032] In one embodiment, the right end of the assembled bridge deck 1 is fixedly connected to a supporting mesh 9 , and the supporting mesh 9 is located directly above the extended outer rod 6 .

[0033] A protective lower slope plate 10 is fixedly connected to the right end of the assembled bridge deck 1 , and the protective lower slope plate 10 is located outside the extended outer rod 6 and the supporting mesh surface 9 .

[0034] When the utility model is in operation: this scheme hoists the assembled assembly bridge deck 1 to a position above the river surface and is located at both ends of the riverbed, and sets a plurality of vertical pole handrails 3 on both sides of the assembly bridge deck 1 to play a safety protection role, and when the vertical pole handrails 3 are vertically placed above the assembly bridge deck 1, with the gradual extension of the service life and the pressure generated by the vertical pole handrails 3 by the people crossing the bridge, the protective force of the vertical pole handrails 3 will be affected. Therefore, when the vertical pole handrails 3 are installed on the assembly bridge deck 1, extended outer rods 6 that cooperate with the vertical pole handrails 3 can be set on both sides of the assembly bridge deck 1, and upper strengthening oblique rods 5 and lower strengthening oblique rods 8 are set on the upper and lower parts of the extended outer rods 6. The upper strengthening oblique rods 5 and the lower strengthening oblique rods 8 cooperate with the extended outer rods 6 to form a plurality of supporting force structures at the side ends of the vertical pole handrails 3. The upper strengthening oblique rods 5 and the lower strengthening oblique rods 8 cooperate with the extended outer rods 6 to The triangular compressive resistance principle is used to improve the protective ability of the vertical pole handrail 3, avoid the risk of it tipping over, and help ensure the protective ability of the vertical pole handrail 3 for pedestrians, thereby enhancing the utilization efficiency of the assembled bridge deck 1. At the same time, when the assembled bridge deck 1 is installed on the river surface, a supporting mesh 9 can be set on multiple extended outer rods 6, and the protective space on both sides of the assembled bridge deck 1 is widened to expand the safety space of the assembled bridge deck 1. A protective inclined lower plate 10 is provided on both sides of the assembled bridge deck 1. The inclined surface of the protective inclined lower plate 10 is set outside the supporting mesh 9, and the lower reinforcing inclined rod 8, the extended outer rod 6 and the supporting mesh 9 are all enclosed on the inner side of the protective inclined lower plate 10, so that an isolation barrier is formed between it and the water in the river surface, reducing the corrosiveness of the water to the external reinforcing components of the assembled bridge deck 1, thereby extending its service life.

[0035] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in the present invention, and such variations or substitutions are intended to fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A steel structure for strengthening an arch bridge, characterized by: The invention comprises an assembly bridge deck (1), wherein the upper end of the assembly bridge deck (1) is fixedly connected to a vertical pole handrail (3), the right end of the assembly bridge deck (1) is fixedly connected to an extended outer rod (6), the assembly bridge deck (1) and the extended outer rod (6) are in a corresponding vertical state, the vertical pole handrail (3) is fixedly connected to an upper strengthening oblique rod (5) at one end close to the extended outer rod (6), the right end of the assembly bridge deck (1) is fixedly connected to a lower strengthening oblique rod (8), the lower strengthening oblique rod (8) is located directly below the extended outer rod (6), and the upper strengthening oblique rod (5) and the lower strengthening oblique rod (8) are fixedly connected to a connecting square piece (7) at one end close to the extended outer rod (6).

2. The steel structure for strengthening an arch bridge according to claim 1, characterized in that: A connecting bolt (11) is installed between the two connecting square pieces (7) and the extended outer rod (6), and a nut is installed at the lower end of the connecting bolt (11).

3. The steel structure for strengthening an arch bridge according to claim 1, characterized in that: The right end of the vertical pole handrail (3) is fixedly connected to a transverse connecting rod (4), and the transverse connecting rod (4) is located between the upper strengthening oblique rod (5) and the extended outer rod (6).

4. The steel structure for strengthening an arch bridge according to claim 1, characterized in that: The upper end of the upright handrail (3) is fixedly connected to a lighting bulb (12), and the right end of the assembly bridge deck (1) is fixedly connected to a supporting mesh surface (9).

5. The steel structure for strengthening an arch bridge according to claim 4, characterized in that: The supporting mesh surface (9) is located directly above the extended outer rod (6), and the right end of the assembly bridge deck (1) is fixedly connected to a protective inclined lower plate (10).

6. The steel structure for strengthening and reinforcing an arch bridge according to claim 5, characterized in that: The protective slope lower plate (10) is located outside the extended outer rod (6) and the supporting mesh surface (9), and the front and rear ends of the assembly bridge deck (1) are fixedly connected to the assembly bridge tower (2).

7. The steel structure for strengthening and reinforcing an arch bridge according to claim 6, characterized in that: The two assembly bridge towers (2) are arranged symmetrically front to back, and the assembly bridge deck (1) is installed on the river surface.

8. The steel structure for strengthening an arch bridge according to claim 7, characterized in that: The assembled bridge tower (2) is installed on the riverbed, and the protective slope lower plate (10) is located above the river surface.

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