Steel structure assembled arch bridge

Abstract

The utility model provides a steel structure assembled arch bridge which comprises a bridge body, the front end and the rear end of the bridge body are symmetrically and fixedly connected with ground erecting battens, the lower ends of the ground erecting battens are provided with lower arc-shaped open holes, the front lower arc-shaped open hole and the rear lower arc-shaped open hole are correspondingly arranged, and auxiliary assembly cross rods penetrate through the inner ends of the two lower arc-shaped open holes. The length of the auxiliary assembly cross rod is larger than that of the bridge body, the left end and the right end of the auxiliary assembly cross rod are each provided with a transverse rotating wheel body, the left end and the right end of the auxiliary assembly cross rod are each fixedly connected with an arc-shaped supporting ring, and the arc-shaped supporting rings are matched with the transverse rotating wheel bodies. The two lower arc-shaped open holes can penetrate through auxiliary assembly cross rods longer than the bridge body, the two auxiliary assembly cross rods can be conveniently used by workers on the two sides of a river bank when the crane lowers the bridge body, the position of the bridge body on a riverbed can be adjusted, the crane does not need to conduct correction many times, and the installation efficiency of the bridge body is guaranteed.

Description

Technical Field

[0001] The utility model relates to a steel structure assembled arch bridge, belonging to the technical field of bridge structures. Background Art

[0002] A steel structure bridge is a bridge built with steel structures. Generally, a bridge with a steel consumption of more than 50% of the whole is called a "large steel structure bridge". Its main body is alloy steel. After producing components, they are assembled and welded. It is a relatively fashionable new way of bridge construction at present.

[0003] For a large-span arch bridge steel arch rib side-lying assembled jig structure with Chinese patent number CN212265033U, the steel arch rib is composed of at least one truss piece, and the overall cross-section of the steel arch rib is arc-shaped and bent. The advantages of the utility model are that the side-lying assembled jig structure with gradually increasing height has a fixed bottom frame body and movable upper frame bodies. The jig structure is simple and easy to operate; the assembly of each layer of truss pieces can share the same set of ground sample benchmarks to control the line shape, and the positioning standards are unified, which is beneficial to the control of the assembled line shape.

[0004] When a crane hoists the bridge body of a steel structure assembled arch bridge for landscape use, due to technical problems or perspective problems, the alignment accuracy between the bridge body and the riverbed is insufficient, and the crane needs to be corrected many times, which is not conducive to ensuring the installation efficiency of the bridge body. Therefore, it is necessary to design a steel structure assembled arch bridge with an auxiliary installation function to solve the above problems.

[0005] Therefore, a steel structure assembled arch bridge is proposed. Content of the Utility Model

[0006] In view of this, the utility model provides a steel structure assembled 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 utility model is realized as follows: A steel structure assembled arch bridge includes a bridge body. Ground strips are symmetrically and fixedly connected to the front and rear ends of the bridge body. Lower arc-shaped openings are formed at the lower ends of the ground strips. The front and rear lower arc-shaped openings are correspondingly arranged. An auxiliary assembly cross bar penetrates through the inner ends of the two lower arc-shaped openings. The length of the auxiliary assembly cross bar is greater than the length of the bridge body. Horizontal rotating bodies are installed at both the left and right ends of the auxiliary assembly cross bar. Arc-shaped holding rings are fixedly connected to both the left and right ends of the auxiliary assembly cross bar. The arc-shaped holding rings cooperate with the horizontal rotating bodies.

[0008] Further preferably, a stabilizing suspension rope is tied to the middle of the bridge body, and the stabilizing suspension rope is externally connected to a crane.

[0009] Further preferably, a wooden decorative panel is fixedly connected to the upper end of the bridge body, and the wooden decorative panel is laid above the ground strips.

[0010] Further preferably, side assembly fences are fixedly connected to both the left and right sides of the upper end of the bridge body, and the two side assembly fences are symmetrically arranged.

[0011] Further preferably, the bridge body is installed on the riverbed, and the left and right ends of the riverbed are in contact with the riverbanks.

[0012] Further preferably, the bridge body is located directly above the riverbed, and the ground strip board is located on the surface of the riverbank.

[0013] Further preferably, a wear-resistant outer surface is fixedly connected to the outer end of the horizontal rotating wheel body, and the wear-resistant outer surface is in contact with the surface of the riverbank.

[0014] Further preferably, a rope-containing groove is opened in the middle of the lower end of the bridge body, and the stable lifting rope penetrates inside and outside the rope-containing groove.

[0015] Due to the adoption of the above technical solutions in the embodiments of the present invention, it has the following advantages:

[0016] First, in this solution, lower arc-shaped openings are symmetrically arranged under the ground strip boards in front of and behind the bridge body. The two lower arc-shaped openings can penetrate the auxiliary assembly cross bars whose length is longer than that of the bridge body. When the crane lowers the bridge body, the staff can be located on both sides of the riverbank respectively. Manually push the bridge body to adjust the position of the bridge body on the riverbed, and hold the arc-shaped handrail ring to push the auxiliary assembly cross bar, so that the position of the auxiliary assembly cross bar above the riverbank can be adjusted through the horizontal rotating wheel body, and the specific position of the bridge body can be accurately adjusted. At this time, use the crane to slightly lift the bridge body in place, and then the auxiliary assembly cross bar can be pulled out of the bridge body for subsequent reuse, without the need for the crane to make corrections multiple times, which is conducive to ensuring the installation efficiency of the bridge body.

[0017] Second, at the same time, a rope-containing groove is arranged under the bridge body. The rope-containing groove can accommodate the lifting position of the stable lifting rope, making the lifting process of the stable lifting rope more stable, at the central point position, not easy to generate deviation, and making the installation process of the bridge body smoother.

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

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 This is the axonometric structure diagram of the bridge body of the present utility model;

[0021] Figure 2 This is the structure diagram of the stable suspension rope in the hoisting state of the present utility model;

[0022] Figure 3 This is the structure diagram of the bridge body above the riverbed of the present utility model;

[0023] Figure 4 This is the partial truncated structure diagram of the front side of the auxiliary assembly cross bar of the present utility model;

[0024] Figure 5 This is the enlarged structure diagram of the truncated middle part of the bridge body of the present utility model.

[0025] Reference numerals: 1, bridge body; 2, side assembly fence; 3, stable suspension rope; 4, lower arc-shaped opening; 5, auxiliary assembly cross bar; 6, transverse rotating wheel body; 7, wear-resistant outer surface; 8, arc-shaped holding ring; 9, rope receiving groove; 11, wooden decorative panel; 12, ground support strip board. Detailed implementation manners

[0026] In the following text, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present utility model. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0027] The embodiments of the present utility model will be described in detail below with reference to the drawings.

[0028] Embodiment 1

[0029] As Figures 1-5 shown, the embodiment of the present utility model provides a steel structure assembled arch bridge, including a bridge body 1. Ground support strip boards 12 are symmetrically and fixedly connected to the front and rear ends of the bridge body 1. Lower arc-shaped openings 4 are formed at the lower ends of the ground support strip boards 12. The front and rear lower arc-shaped openings 4 are arranged in correspondence. An auxiliary assembly cross bar 5 penetrates through the inner ends of the two lower arc-shaped openings 4. The length of the auxiliary assembly cross bar 5 is greater than the length of the bridge body 1. Transverse rotating wheel bodies 6 are installed at both the left and right ends of the auxiliary assembly cross bar 5. Arc-shaped holding rings 8 are fixedly connected to both the left and right ends of the auxiliary assembly cross bar 5. The arc-shaped holding rings 8 cooperate with the transverse rotating wheel bodies 6.

[0030] A stabilizing rope 3 is bound through the middle of the bridge body 1, and the stabilizing rope 3 is externally connected to a crane. A wooden veneer panel 11 is fixedly connected to the upper end of the bridge body 1, and the wooden veneer panel 11 is laid on top of a ground-mounted board 12. Side assembly fences 2 are fixedly connected to the left and right sides of the upper end of the bridge body 1, and the two side assembly fences 2 are symmetrically arranged.

[0031] Example 2

[0032] In one embodiment, the bridge body 1 is installed on a riverbed, and the left and right ends of the riverbed are in contact with riverbanks. The bridge body 1 is located directly above the riverbed, and the ground slats 12 are located on the surface of the riverbank.

[0033] A wear-resistant outer surface 7 is fixedly connected to the outer end of the transverse wheel body 6, and the wear-resistant outer surface 7 is in contact with the surface of the river bank. A rope-containing groove 9 is opened in the middle of the lower end of the bridge body 1, and the stabilizing suspension rope 3 passes through the inside and outside of the rope-containing groove 9.

[0034] The utility model is in operation: the scheme processes the bridge body 1 into a finished product in the factory and transports it directly to the installation site, and then uses a crane to assist the bridge body 1 to be docked to the designated position on the riverbed and fixed to the riverbank using connecting pieces. Therefore, lower arc openings 4 are symmetrically arranged under the ground-mounted strips 12 in front and behind the bridge body 1. The two lower arc openings 4 can penetrate the auxiliary assembly cross bars 5 which are longer than the bridge body 1. The two auxiliary assembly cross bars 5 can facilitate the crane to lower the bridge body 1, so that the bridge body 1 can be directly docked to the position above the riverbed using the auxiliary assembly cross bars 5. At this time, the bridge body 1 has not moved to the designated position, but is only located in the approximate area. At this time, the crane is suspended, and the staff are on the scene and are located on both sides of the riverbank, and manually push the bridge body 1. Move the bridge body 1 to adjust the position of the bridge body 1 on the riverbed, and push the auxiliary assembly cross bar 5 by holding the arc-shaped support ring 8, so that the position of the auxiliary assembly cross bar 5 on the river bank can be adjusted through the transverse wheel body 6, so that the specific position of the bridge body 1 can be accurately adjusted. At this time, use the crane to slightly lift the bridge body 1 in situ, and then the auxiliary assembly cross bar 5 can be pulled out of the bridge body 1 for subsequent reuse. There is no need for the crane to make corrections many times, which is beneficial to ensuring the installation efficiency of the bridge body 1. At the same time, a rope-containing groove 9 is provided under the bridge body 1. The rope-containing groove 9 can accommodate the hoisting position of the stabilizing rope 3, so that the hoisting process of the stabilizing rope 3 is more stable and is at the center point, which is not easy to deviate, making the installation process of the bridge body 1 smoother.

[0035] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A steel structure assembled arch bridge, characterized in that: The invention comprises a bridge body (1), wherein the front and rear ends of the bridge body (1) are symmetrically fixedly connected with a floor-mounting strip (12), the lower end of the floor-mounting strip (12) is provided with a lower arc-shaped opening (4), the front and rear lower arc-shaped openings (4) are arranged correspondingly, the inner ends of the two lower arc-shaped openings (4) are penetrated by an auxiliary assembly cross bar (5), the length of the auxiliary assembly cross bar (5) is greater than the length of the bridge body (1), the left and right ends of the auxiliary assembly cross bar (5) are both installed with a transverse wheel body (6), the left and right ends of the auxiliary assembly cross bar (5) are both fixedly connected with an arc-shaped support ring (8), and the arc-shaped support ring (8) and the transverse wheel body (6) cooperate with each other.

2. The steel structure assembled arch bridge according to claim 1, characterized in that: A stabilizing rope (3) is bound to the middle of the bridge body (1), and the stabilizing rope (3) is externally connected to a crane.

3. The steel structure assembled arch bridge according to claim 1, characterized in that: A wood veneer panel (11) is fixedly connected to the upper end of the bridge body (1), and the wood veneer panel (11) is laid on top of the floor slats (12).

4. The steel structure assembled arch bridge according to claim 1, characterized in that: Side mounting fences (2) are fixedly connected to the left and right sides of the upper end of the bridge body (1), and the two side mounting fences (2) are symmetrically arranged.

5. The steel structure assembled arch bridge according to claim 1, characterized in that: The bridge body (1) is installed on a riverbed, and the left and right ends of the riverbed are in contact with riverbanks.

6. The steel structure assembled arch bridge according to claim 5, characterized in that: The bridge body (1) is located directly above the riverbed, and the ground-mounted slats (12) are located on the surface of the riverbank.

7. The steel structure assembled arch bridge according to claim 6, characterized in that: The outer end of the transverse wheel body (6) is fixedly connected to a wear-resistant outer surface (7), and the wear-resistant outer surface (7) is in contact with the surface of the river bank.

8. The steel structure assembled arch bridge according to claim 2, characterized in that: A rope accommodating groove (9) is provided in the middle of the lower end of the bridge body (1), and the stabilizing suspension rope (3) passes through the inside and outside of the rope accommodating groove (9).

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