Steel plate filling pipe truss structure

Abstract

The utility model provides a steel plate filling pipe truss structure which comprises a combined section, web members, a lower chord and / or a second upper chord. The combined section comprises an upper chord upper round pipe, an upper chord lower round pipe and a second filling steel plate. The two upper chord upper circular pipes and / or the upper chord lower circular pipes are connected with the lower chord members and / or the upper chord members through web members. The structure has the advantages of being high in height difference adaptability, excellent in shear resistance and good in waterproof effect, supports combination of various pipes and steel plates and is suitable for complex elevation roofs of stadiums, exhibition halls and the like.

Description

Technical Field

[0001] This utility model relates to the field of building structures, specifically a steel plate infilled tube truss structure suitable for large-span, complex-elevation roof structures, especially suitable for large public buildings with complex elevation changes such as stadiums, exhibition halls, and airport terminals. Background Technology

[0002] Traditional tubular truss structures consist of chords and web members, forming a stable system through welding or bolting connections between the members. Their advantages lie in their simple construction and clearly defined stress distribution, making them widely used in large-span roofs. However, with increasingly complex building designs, roof elevations often exhibit discontinuous abrupt changes (e.g., local height differences less than 200mm), posing the following challenges to traditional structures:

[0003] Difficulty in arranging web members: Small elevation differences result in insufficient welding space between web members and chord members, which easily leads to weld quality defects;

[0004] Insufficient shear resistance: Stress concentration is prone to occur at abrupt elevation changes, and traditional web members are unable to effectively disperse shear force; Poor structural flexibility: Fixed web members are difficult to adapt to the requirements of curved or polygonal roof shapes;

[0005] Waterproofing risks: The numerous connection points of the poles and components, coupled with poor sealing, can easily lead to water leakage.

[0006] This invention provides an efficient, flexible and reliable structural solution by replacing traditional web members with steel plate filling and combining it with a modular connection design. Summary of the Invention

[0007] This application provides a steel plate infilled tube truss structure, which aims to provide an effective solution for situations where the roof elevation changes abruptly, especially when the elevation difference is small and variable.

[0008] To solve the above-mentioned technical problems, the technical solution proposed in this application is as follows:

[0009] A steel plate-filled tube truss structure includes a composite section, web members, a lower chord, and / or an upper chord; the composite section includes an upper circular tube on the upper chord, a lower circular tube on the upper chord, and a filling steel plate;

[0010] Both the upper chord upper circular tube and the upper chord lower circular tube are steel pipes, and the two are connected by welding steel plates.

[0011] The upper chord upper circular tube and / or the lower chord lower circular tube are connected to the lower chord and / or the upper chord via a web member.

[0012] Furthermore, the web members include at least one of oblique web members and vertical web members.

[0013] Furthermore, the tubular truss structure is a polygonal structure.

[0014] Furthermore: the polygonal structure is a triangular structure, in which the upper chord upper circular tube is located at the vertex of the triangle, the upper chord lower circular tube is located on one side of the triangle, and the filling steel plate is welded along that side of the triangle.

[0015] Further: The polygonal structure is a rectangular structure. In the rectangular structure, the upper chord circular tube is located at the vertex of the rectangle, and the lower chord circular tube is located on one side of the rectangle. The filling steel plate is welded along this side of the rectangle. Further: The composite section is formed on one side of the polygonal structure, the upper chord circular tube is located at the vertex of the polygon, and the lower chord circular tube is located on the side of the polygon.

[0016] Furthermore: adjacent trusses are connected by out-of-plane connecting trusses; the out-of-plane connecting trusses are connected to the upper chord and lower circular tube of the composite section to form a spatially stable system.

[0017] Furthermore, the filling steel plate extends along the length direction of the upper chord upper circular tube and the lower chord lower circular tube.

[0018] Compared with existing technologies, the steel plate-filled tube truss structure of the present invention achieves the following beneficial technical effects:

[0019] (1) Good adaptability to height difference. The steel plates in the steel plate filled tube truss structure can be tilted at an angle according to the building requirements, so as to effectively cope with various height difference changes; at the same time, it solves the problem of difficulty in welding web members and chord members due to small roof height difference.

[0020] (2) The design of replacing part of the web members with steel plates greatly improves the shear resistance of the tubular truss, and the welding of steel plates with chord members significantly enhances the waterproofing capability of the structure at varying elevations.

[0021] (3) Diversity of structural materials and shapes. The tubular truss structure of the present invention uses steel pipes filled with steel plates. By flexibly selecting various pipe shapes such as straight pipes, curved pipes, square pipes, and round pipes and steel plate configurations, the truss can adapt to different architectural design requirements. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 Schematic diagram of the composite section;

[0024] Figure 2: Schematic diagram of a triangular structure;

[0025] Figure 3 Schematic diagram of a rectangular structure;

[0026] Figure 4 Schematic diagram of the combined structure of triangular structure and out-of-plane connecting truss;

[0027] Figure 5 Schematic diagram of a combined rectangular structure and an out-of-plane connecting truss. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] See Figure 1-5 The core of this steel plate-filled tube truss structure includes a composite section, web members, a lower chord 5, and / or an upper chord 4. The composite section consists of an upper circular tube 1, a lower circular tube 2, and a filler steel plate 3. Both the upper and lower circular tubes 1 and 2 are steel pipes, connected by welding with the filler steel plate 3 to form a closed section. The filler steel plate 3 has a thickness of 6-15mm, and the welding employs a continuous full-welding process to ensure sealing and shear resistance. The composite section can be designed as a triangular, rectangular, or other polygonal structure.

[0030] In one embodiment of this application, the polygonal structure is a triangular structure: the upper chord circular tube 1 is located at the vertex of the triangle, the lower chord circular tube 2 is located on one side of the triangle, and the filling steel plate 3 is welded along the side to form a triangular composite section.

[0031] In one embodiment of this application, the polygonal structure is a rectangular structure: the upper chord circular tube 1 is located at the vertex of the rectangle, the lower chord circular tube 2 is located on one side of the rectangle, and the filling steel plate 3 is welded perpendicularly along that side.

[0032] For other polygonal structures: the composite section is arranged on any side of the polygon, the upper chord circular tube 1 is located at the vertex of the polygon, the lower chord circular tube 2 is located on the side of the polygon, and the filling steel plate 3 is welded along the edge.

[0033] The web members of this application include at least one of diagonal web members 6 and vertical web members 7. The diagonal web members 6 obliquely connect the upper chord upper circular tube 1 and the lower chord member 5, while the vertical web members 7 vertically connect the upper chord lower circular tube 2 and the upper chord member 4, forming an efficient force transmission system. Adjacent trusses are connected by out-of-plane connecting trusses 8, which are welded to the upper chord lower circular tube 2, forming a spatially stable system. The filler steel plate 3 extends along the length of the upper chord upper circular tube 1 and the upper chord lower circular tube 2, enhancing overall continuity.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A steel plate-filled tube truss structure, characterized in that: Including composite sections, web members, lower chord (5) and / or upper chord (4) The composite section includes an upper chord circular tube (1), an upper chord lower circular tube (2), and a filling steel plate (3). Both the upper chord upper circular tube (1) and the upper chord lower circular tube (2) are steel pipes, and they are welded together by a steel plate (3). The upper chord upper round tube (1) and / or the upper chord lower round tube (2) are connected to the lower chord rod (5) and / or the upper chord rod (4) via a web rod.

2. The tubular truss structure according to claim 1, characterized in that: The web members include at least one of the following: diagonal web members (6) and vertical web members (7).

3. The tubular truss structure according to claim 1, characterized in that: The tubular truss structure is a polygonal structure.

4. The tubular truss structure according to claim 3, characterized in that: The polygonal structure is a triangular structure. In the triangular structure, the upper chord upper circular tube (1) is located at the vertex of the triangle, the upper chord lower circular tube (2) is located on one side of the triangle, and the filling steel plate (3) is welded along that side of the triangle.

5. The tubular truss structure according to claim 3, characterized in that: The polygonal structure is a rectangular structure. In the rectangular structure, the upper chord upper circular tube (1) is located at the vertex of the rectangle, the upper chord lower circular tube (2) is located on one side of the rectangle, and the filling steel plate (3) is welded along that side of the rectangle.

6. The tubular truss structure according to claim 3, characterized in that: The combined cross section is formed on one side of the polygonal structure, the upper chord upper circular tube (1) is located at the vertex of the polygon, and the upper chord lower circular tube (2) is located on the side of the polygon.

7. The tubular truss structure according to claim 1, characterized in that: Adjacent trusses are connected by an out-of-plane connecting truss (8). The out-of-plane connecting truss (8) is connected to the upper chord and lower circular tube (2) of the combined section to form a spatially stable system.

8. The tubular truss structure according to claim 1, characterized in that: The filling steel plate (3) extends along the length of the upper chord upper circular tube (1) and the upper chord lower circular tube (2).

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