Pedestrian steel truss bridge structure

Abstract

The utility model discloses a pedestrian steel truss bridge structure which comprises a main truss bridge structure, the main truss bridge structure is made of outwards-inclined steel truss materials, pedestrian railings are welded to the inner side of the main truss bridge structure, plastic wood is transversely laid on a bridge deck of the main truss bridge structure, and the outer side of the main truss bridge structure is connected with the pedestrian railings. And the plastic wood is connected with channel steel welded on the main truss bridge structure through a connecting piece. The utility model has the beneficial effects that the structure without upper parallel connection is adopted, the structure is suitable for middle and small span pedestrian landscape truss bridges below about 30m, and the structure of the main truss bridge structure and the lower parallel connection cross beam structure is reinforced, so that the overall transverse stability is ensured, the upper parallel connection is not needed, and the structure is simple and convenient. On one hand, the height of the main truss bridge structure is reduced, on the other hand, the landscape permeability of the main truss bridge structure is improved, and the competitiveness of a truss bridge in a small-and-medium-span foot bridge is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridges, in particular to a pedestrian steel truss bridge structure. Background Art

[0002] Steel truss bridge is one of the more commonly used bridge types of steel structure bridges. Truss bridge refers to a bridge with trusses as the main load-bearing components of the superstructure. Truss bridges are generally composed of main trusses, upper and lower horizontal longitudinal connecting systems, bridge portals, intermediate cross braces and bridge deck systems.

[0003] In a truss, the chord is the rod that makes up the periphery of the truss, including the upper chord and the lower chord. The rod that connects the upper and lower chords is called the web, which is divided into diagonal rods and vertical rods according to the different directions of the web. The plane where the chord and the web are located is called the main truss plane. The bridge height of the large-span truss changes along the span direction to form a curved chord truss; the medium and small spans use a constant truss height.

[0004] In order to meet the needs of lateral force and stability, conventional truss bridges need to form a connection system between the two main trusses. The connection system is generally composed of upper and lower horizontal longitudinal connections, and the lower horizontal longitudinal connection is sometimes combined with the bridge deck system.

[0005] Therefore, the applicant has found a solution to the above-mentioned problem through beneficial exploration and research, and the technical solution to be introduced below is produced in this context. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a pedestrian steel truss bridge structure without upper horizontal longitudinal connection to solve the above-mentioned deficiencies and defects of the prior art.

[0007] The technical problem to be solved by the present invention can be achieved by adopting the following technical solutions:

[0008] A pedestrian steel truss bridge structure, characterized in that it includes a main truss bridge structure, the main truss bridge structure is made of outward-inclined steel truss material, a pedestrian railing is welded on the inner side of the main truss bridge structure, and the bridge deck of the main truss bridge structure is horizontally paved with plastic wood, and the plastic wood is connected to the channel steel welded to the main truss bridge structure through a connecting piece.

[0009] In a preferred embodiment of the present invention, it also includes a steel plate for supporting the main truss bridge structure and a plate-type rubber bearing arranged on the steel plate and in contact with the main truss bridge structure.

[0010] In a preferred embodiment of the present utility model, the main truss bridge structure includes a crossbeam, an upper chord, a lower chord, a vertical rod, and a diagonal rod. Both ends of the crossbeam are connected to the lower chord, and the vertical rod and the diagonal rod are connected between the upper chord and the lower chord at intervals.

[0011] In a preferred embodiment of the present utility model, the main truss bridge structure further includes a lower horizontal connecting diagonal rod arranged between the two cross beams.

[0012] In a preferred embodiment of the present utility model, the pedestrian railing is welded to the inner side of the vertical rod.

[0013] In a preferred embodiment of the present invention, a reinforcing steel plate is provided at the connection between the vertical rod and the cross beam.

[0014] In a preferred embodiment of the present invention, the connecting member is a connecting bolt.

[0015] In a preferred embodiment of the present invention, the upper chord and the lower chord are made of round steel tubes with a diameter of 133 mm, and the vertical rods and the diagonal rods are made of square steel tubes.

[0016] In a preferred embodiment of the present utility model, the lower horizontal connecting diagonal rod is made of angle steel.

[0017] In a preferred embodiment of the present invention, the width of the main truss bridge structure is 2500 mm, and the camber angle of the main truss bridge structure is 10°.

[0018] Due to the adoption of the above technical scheme, the beneficial effects of the utility model are: the utility model adopts a structure without upper parallel connection, and is suitable for medium and small span pedestrian landscape truss bridges below about 30m. By strengthening the structure of the main truss bridge structure and the lower parallel connection crossbeam structure, the overall lateral stability is guaranteed without the need for an upper parallel connection. On the one hand, the height of the main truss bridge structure is reduced, and on the other hand, the landscape permeability of the main truss bridge structure is improved, thereby improving the competitiveness of truss bridges among medium and small span pedestrian bridges. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 1 It is a plan view of the utility model.

[0021] Figure 2 It is the lower flat joint layout diagram of the utility model.

[0022] Figure 3 It is a cross-sectional view of the utility model.

[0023] Figure 4 It is a bridge deck pavement arrangement diagram of the utility model.

[0024] Figure 5 It is a schematic diagram of the node reinforcement structure of the utility model. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific illustrations.

[0026] See also Figures 1 to 5 A pedestrian steel truss bridge structure shown includes a main truss bridge structure 10. The main truss bridge structure 10 in this embodiment includes a cross beam 11, an upper chord 12, a lower chord 13, a vertical bar 14, and an oblique bar 15. Both ends of the cross beam 11 are connected to the lower chord 13, and the vertical bar 14 and the oblique bar 15 are connected between the upper chord 12 and the lower chord 13 at intervals. The upper chord 12 and the lower chord 13 are made of round steel pipes with a diameter of 133 mm, while the vertical bar 14 and the oblique bar 15 are made of square steel pipes. Specifically, the width of the main truss bridge structure 10 is 2500 mm, and the camber angle of the main truss bridge structure 10 is 10°.

[0027] A pedestrian railing 20 is welded to the inner side of the main truss bridge structure 10 . In this embodiment, the pedestrian railing 20 is welded to the inner side of the vertical rod 14 .

[0028] The bridge deck of the main truss bridge structure 10 is paved with plastic wood 30, which is connected to the channel steel 40 welded on the main truss bridge structure 10 through the connecting member 1. The connecting member 1 in this embodiment is preferably a connecting bolt, and specifically, the size of the plastic wood 30 is 150*40mm.

[0029] In order to increase the integrity of the entire bridge, a reinforcing steel plate 2 is provided at the connection between the vertical rod 14 and the cross beam 11, and both are reinforced by the reinforcing steel plate 2 to ensure lateral stability.

[0030] The main truss bridge structure 10 further includes a lower horizontal connecting diagonal rod 16 arranged between the two cross beams 11. The lower horizontal connecting diagonal rod 16 in this embodiment is made of angle steel.

[0031] This embodiment further includes a steel plate 10 a for supporting the main truss bridge structure 10 and a plate-type rubber bearing 10 b disposed on the steel plate 10 a and in contact with the main truss bridge structure 10 .

[0032] The utility model adopts a structure without an upper parallel connection. The utility model is suitable for medium and small span pedestrian landscape truss bridges below about 30m. By strengthening the structure of the main truss bridge structure and the lower parallel connection crossbeam structure, the overall lateral stability is guaranteed without the need for an upper parallel connection. On the one hand, the height of the main truss bridge structure is reduced, and on the other hand, the landscape permeability of the main truss bridge structure is improved, thereby improving the competitiveness of truss bridges among medium and small span pedestrian bridges.

[0033] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A pedestrian steel truss bridge structure, characterized in that: It includes a main truss bridge structure, which is made of outward-inclined steel truss material. A pedestrian railing is welded on the inner side of the main truss bridge structure. The bridge deck of the main truss bridge structure is horizontally paved with plastic wood, and the plastic wood is connected to the channel steel welded on the main truss bridge structure through a connecting piece.

2. A pedestrian steel truss bridge structure according to claim 1, characterized in that: It also includes a steel plate for supporting the main truss bridge structure and a plate-type rubber bearing arranged on the steel plate and in contact with the main truss bridge structure.

3. The pedestrian steel truss bridge structure according to claim 1, characterized in that: The main truss bridge structure comprises a cross beam, an upper chord, a lower chord, a vertical rod and an oblique rod. Both ends of the cross beam are connected to the lower chord, and the vertical rod and the oblique rod are connected between the upper chord and the lower chord at intervals.

4. A pedestrian steel truss bridge structure according to claim 3, characterized in that: The main truss bridge structure also includes a lower horizontal connecting diagonal rod arranged between the two cross beams.

5. The pedestrian steel truss bridge structure according to claim 3, characterized in that: The pedestrian railing is welded to the inner side of the vertical rod.

6. The pedestrian steel truss bridge structure according to claim 3, characterized in that: A reinforcing steel plate is provided at the connection between the vertical rod and the cross beam.

7. The pedestrian steel truss bridge structure according to claim 1, characterized in that: The connecting piece is a connecting bolt.

8. The pedestrian steel truss bridge structure according to claim 3, characterized in that: The upper chord and the lower chord are made of round steel tubes with a diameter of 133 mm, while the vertical rods and the diagonal rods are made of square steel tubes.

9. The pedestrian steel truss bridge structure according to claim 4, characterized in that: The lower horizontal connecting diagonal rod is made of angle steel.

10. The pedestrian steel truss bridge structure according to claim 1, characterized in that: The width of the main truss bridge structure is 2500 mm, and the camber angle of the main truss bridge structure is 10°.

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