Bridge steel structure facilitating maintenance

Abstract

The present application relates to the field of steel structure, and particularly relates to a bridge steel structure convenient to maintain. Each group of supporting steel structure comprises a pear-shaped supporting base extending to the outside and then contracting to the inside, and a vertical supporting base arranged on the upper part of the pear-shaped supporting base; a first connecting beam arranged at the lower part and a second connecting beam arranged at the upper part are arranged between the two pear-shaped supporting bases, and a plurality of third connecting beams are arranged between the two vertical supporting bases. The pear-shaped supporting base, the vertical supporting base, the first connecting beam, the second connecting beam and the third connecting beam are matched, when the first connecting beam, the second connecting beam and the third connecting beam are maintained, any one of them can be disassembled, and the others can also bear and support, when the pear-shaped supporting base and the vertical supporting base are maintained, the pear-shaped supporting base and the vertical supporting base on one side are disassembled, and the pear-shaped supporting base and the vertical supporting base on the other side are not affected to bear and support, and the bridge steel structure has the characteristics of simple structure, stable connection and convenient maintenance.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of steel structure, and particularly relates to a bridge steel structure convenient to maintain. BACKGROUND

[0002] With the acceleration of urbanization and the development of road traffic, steel structure bridges, as a mainstream bridge structure, are widely used in the fields of highway, urban road and railway traffic infrastructure. Steel structure bridges have the advantages of light weight, high strength, good rigidity, strong durability and short construction period, and have lower construction cost and maintenance cost compared with traditional concrete bridges. The design of steel structure bridges needs to consider multiple factors, including the span, load, terrain condition and environmental factors of the bridge. In the design process, static calculation and dynamic calculation are needed to determine the overall structure of the bridge and the support points and connection points of key nodes, so as to ensure the stability and safety of the bridge.

[0003] At present, with the continuous improvement of urbanization and traffic infrastructure, the application of steel structure bridges will continue to expand and gradually move towards the direction of efficiency, greenness and sustainability. Since it is not convenient to maintain the steel structure bridge after construction, it is necessary to design a bridge steel structure convenient to maintain in the early stage. SUMMARY

[0004] In view of the defects in the prior art, the present application provides a bridge steel structure convenient to maintain.

[0005] The technical scheme adopted by the present application is: the bridge steel structure convenient to maintain comprises two groups of support steel structures, each group of support steel structure comprises a pear-shaped support base extending outwardly and then contracting inwardly and a vertical support seat arranged at the upper part of the pear-shaped support base; a first connecting beam arranged at the lower part and a second connecting beam arranged at the upper part are arranged between the two pear-shaped support bases; and a plurality of third connecting beams are arranged between the two vertical support seats.

[0006] To better realize the present application, the third connecting beam comprises a square tubular shell, arc-shaped plates are arranged at the four corners of the cavity of the square tubular shell, and temporary load-bearing rods freely extendable and retractable are arranged in the arc-shaped plates.

[0007] To better realize the present application, two temporary load-bearing rods are arranged in each arc-shaped plate, the lengths of the two temporary load-bearing rods are consistent and are half of the length of the arc-shaped plate; and through holes for facilitating the pushing of the temporary load-bearing rods are arranged on the arc-shaped plates.

[0008] To better realize the present application, a plurality of annular grooves for facilitating the pushing are uniformly and intermittently arranged on the temporary load-bearing rods.

[0009] In order to better realize the present application, a first flange is arranged at one end of the square cylindrical shell, a second flange is arranged at the other end, and bolt holes for facilitating connection and fixation are arranged on the first flange and the second flange.

[0010] In order to better realize the present application, a plurality of groups of annular rib plates are uniformly and spacedly arranged on the surface of the square cylindrical shell.

[0011] In order to better realize the present application, a plurality of stiffening plates are arranged between the two adjacent groups of annular rib plates.

[0012] In order to better realize the present application, a stiffening plate is arranged near each bolt hole.

[0013] In order to better realize the present application, the square cylindrical shell is formed by welding four flat steel plates and four angle steels.

[0014] In order to better realize the present application, a spare parts bin is arranged on the inner side of the pear-shaped support base between the first connecting beam and the second connecting beam.

[0015] The present application has the advantages that the bridge steel structure convenient to maintain is provided with a pear-shaped support base, a vertical support seat, a first connecting beam, a second connecting beam and a third connecting beam, and when the first connecting beam, the second connecting beam and the third connecting beam are maintained, any one of them can be disassembled, and the others can also bear and support; when the pear-shaped support base and the vertical support seat are maintained, the pear-shaped support base and the vertical support seat on one side are disassembled, and the pear-shaped support base and the vertical support seat on the other side are not affected and can bear and support, so that the structure is simple, the connection is stable, and the maintenance is convenient.

[0016] The four corners of the cavity of the square cylindrical shell are provided with arc-shaped plates, and temporary bearing rods which can be freely extended and retracted are arranged in the arc-shaped plates; when the third connecting beam is disassembled and installed, the temporary bearing rods are extended to cooperate with the vertical support seats on both sides to temporarily bear, without the aid of a crane or other equipment, so that the operation and maintenance are convenient.

[0017] A ring-shaped groove is arranged on the temporary bearing rod, and a through hole is arranged on the arc-shaped plate; a crowbar can be inserted into the through hole by a worker to cooperate in the ring-shaped groove to extend or retract the temporary bearing rod; when disassembled and maintained, the temporary bearing rod is extended to bear the weight, and after the maintenance is completed, the temporary bearing rod is retracted.

[0018] The arrangement of the stiffening plates and the annular rib plates can increase the mechanical strength of the whole mechanism, and the arrangement of the stiffening plate near each bolt hole can provide a foothold for the worker, so that the maintenance work is convenient.

[0019] The spare parts warehouse is arranged, spare parts can be stored conveniently, and the spare parts warehouse can be used as a temporary rest area for workers. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0021] Fig. 1 A structural schematic view of the bridge steel structure convenient for maintenance of the present application;

[0022] Fig. 2 A structural schematic view of the third connecting beam of the bridge steel structure convenient for maintenance of the present application;

[0023] Fig. 3 A structural schematic view of the temporary load-bearing rod of the bridge steel structure convenient for maintenance of the present application;

[0024] In the drawings, 1 is a pear-shaped support base, 2 is a vertical support seat, 3 is a first connecting beam, 4 is a second connecting beam, 5 is a third connecting beam, 6 is a spare parts warehouse, 7 is a first flange, 8 is a second flange, 9 is a cavity, 10 is an arc-shaped plate, 11 is a through hole, 12 is a bolt hole, 13 is a square cylindrical shell, 14 is an annular rib plate, 15 is a stiffener, 16 is a temporary load-bearing rod, and 17 is an annular groove. DETAILED DESCRIPTION

[0025] The embodiments of the technical solutions of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0026] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the present application should be understood as the usual meanings understood by the skilled in the art of the present application.

[0027] Embodiment:

[0028] As Figs. 1 to 3The bridge steel structure convenient to maintain is characterized in that the bridge steel structure convenient to maintain comprises two groups of support steel structures, each group of support steel structures comprises a pear-shaped support base 1 extending outwardly and then contracting inwardly and a vertical support base 2 arranged at the upper portion of the pear-shaped support base 1, a first connecting beam 3 arranged at the lower portion and a second connecting beam 4 arranged at the upper portion are arranged between the two pear-shaped support bases 1, and a plurality of third connecting beams 5 are arranged between the two vertical support bases 2.

[0029] Preferably, the third connecting beam 5 comprises a square tube-shaped shell 13, arc-shaped plates 10 are arranged at the four corners of the cavity 9 of the square tube-shaped shell 13, and temporary load-bearing rods 16 capable of freely extending and contracting are arranged in the arc-shaped plates 10. When the third connecting beam 5 is disassembled and installed, the temporary load-bearing rods 16 can be extended to cooperate with the vertical support bases 2 on both sides to temporarily bear the load, and the operation and maintenance can be facilitated without the aid of a crane or other equipment.

[0030] Preferably, two temporary load-bearing rods 16 are arranged in each arc-shaped plate 10, the lengths of the two temporary load-bearing rods 16 are consistent and are half the length of the arc-shaped plate 10, and through holes 11 for facilitating the prying of the temporary load-bearing rods 16 are arranged on the arc-shaped plates 10. A plurality of annular grooves 17 for facilitating the prying are uniformly and intermittently arranged on the temporary load-bearing rods 16. The annular grooves 17 are arranged on the temporary load-bearing rods 16, and the through holes 11 are arranged on the arc-shaped plates 10, so that workers can use a crowbar to extend into the through holes 11, pry the temporary load-bearing rods 16 in the annular grooves 17, and extend or contract the temporary load-bearing rods 16. When disassembled and maintained, the temporary load-bearing rods 16 are extended to be clamped and loaded by the vertical support bases 2, at which time the connecting bolts can be loosened for maintenance, the connecting bolts are fixed again after the maintenance is completed, the temporary load-bearing rods 16 are contracted by using the crowbar, and the two temporary load-bearing rods 16 can be operated synchronously to improve the maintenance efficiency.

[0031] As preferred, the first flange 7 is arranged at one end of the square cylindrical shell 13, and the second flange 8 is arranged at the other end, and the bolt hole 12 is arranged at the first flange 7 and the second flange 8, which can facilitate quick installation and disassembly. A plurality of groups of annular rib plates 14 are arranged on the surface of the square cylindrical shell 13 at uniform intervals. Preferably, a plurality of stiffening plates 15 are arranged between the two adjacent groups of annular rib plates 14. Further preferably, one stiffening plate 15 is arranged near each bolt hole 12. The arrangement of the stiffening plates 15 and the annular rib plates can increase the mechanical strength of the entire mechanism, and the arrangement of one stiffening plate 15 near each bolt hole 12 can facilitate the standing place of the staff and facilitate the maintenance work.

[0032] As preferred, the square cylindrical shell 13 is welded by four flat steel plates and four angle steels.

[0033] As preferred, the spare parts warehouse 6 is arranged on the inner side of the pear-shaped support base 1 between the first connecting beam 3 and the second connecting beam 4. The arrangement of the spare parts warehouse 6 can facilitate the storage of spare parts by the staff, and can also serve as a temporary rest area for the staff.

[0034] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application.

Claims

1. A bridge steel structure that is easy to maintain, characterized in that: It includes two sets of supporting steel structures. Each set of supporting steel structures includes a pear-shaped supporting base (1) that extends outward and then contracts inward, and a vertical supporting seat (2) set on the upper part of the pear-shaped supporting base (1). A first connecting beam (3) located at the lower part and a second connecting beam (4) located at the upper part are provided between the two pear-shaped supporting bases (1). A plurality of third connecting beams (5) are provided between the two vertical supporting seats (2). The third connecting beam (5) includes a square cylindrical shell (13). An arc plate (10) is provided at each of the four corners of the cavity (9) of the square cylindrical shell (13). A temporary load-bearing rod (16) that can be freely extended and retracted is provided in the arc plate (10).

2. The bridge steel structure for easy maintenance according to claim 1, characterized in that: Each of the aforementioned arc-shaped plates (10) is provided with two temporary load-bearing rods (16), the two temporary load-bearing rods (16) are of the same length, each being half the length of the arc-shaped plate (10); the arc-shaped plate (10) is provided with through holes (11) for easy manipulation of the temporary load-bearing rods (16).

3. The bridge steel structure for easy maintenance according to claim 2, characterized in that: Multiple annular grooves (17) that are easy to manipulate are evenly spaced on the temporary load-bearing rod (16).

4. The bridge steel structure for easy maintenance according to claim 3, characterized in that: A first flange (7) is provided at one end of the square cylindrical shell (13), and a second flange (8) is provided at the other end. Both the first flange (7) and the second flange (8) are provided with bolt holes (12) for easy connection and fixing.

5. The bridge steel structure for easy maintenance according to claim 4, characterized in that: Multiple sets of annular ribs (14) are evenly spaced on the surface of the cylindrical shell (13).

6. The bridge steel structure for easy maintenance according to claim 5, characterized in that: Multiple stiffening plates (15) are provided between two adjacent sets of annular ribs (14).

7. The bridge steel structure for easy maintenance according to claim 6, characterized in that: A stiffening plate (15) is provided near each bolt hole (12).

8. The bridge steel structure for easy maintenance according to claim 1, characterized in that: The cylindrical shell (13) is welded together from four flat steel plates and four angle steels.

9. The bridge steel structure for easy maintenance according to claim 1, characterized in that: A spare parts compartment (6) is provided on the inner side of the pear-shaped support base (1) between the first connecting beam (3) and the second connecting beam (4).

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