Large-span steel structure truss

Abstract

The utility model provides a large-span steel structure truss, which belongs to the technical field of steel structure trusses, and comprises at least two groups of main cross beams arranged in parallel, a plurality of support frames are sleeved on the main cross beams, and the bottoms of the support frames are detachably connected with a bottom frame; the top of the bottom frame is connected with limiting columns, and the tops of the limiting columns can be clamped into the positioning grooves so that the supporting frame and the bottom frame can be fixed to the main beam. The main cross beam and the supporting frame are detachably connected through the bottom frame with the detachable bottom, so that the length of the truss can be installed on site according to actual conditions, use is convenient, and construction efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel structure trusses, and in particular relates to a large-span steel structure truss. Background Art

[0002] Steel structure trusses refer to trusses made of steel. They are often used as the primary load-bearing components in industrial and civil building roof structures, crane beams, bridges, and hydraulic gates. Various tower structures, such as masts, television towers, and transmission line towers, often utilize spatial steel trusses composed of three-, four-, or multiple-sided planar trusses. Currently, most existing steel structure trusses are manufactured using on-site integrated welding. This not only reduces construction efficiency but also prevents the truss from being adjusted to lengthen or shorten after welding, making it difficult to tailor the truss to specific implementation circumstances. Utility Model Content

[0003] In order to solve the above problems in the prior art, a large-span steel structure truss is proposed.

[0004] The technical solution of the utility model to solve the technical problem is: a large-span steel structure truss, including at least two groups of main beams arranged in parallel, a plurality of support frames are mounted on the main beams, and the bottom of the support frames can be detachably connected to the bottom frame; a plurality of positioning grooves are provided at the bottom of the main beams along the direction of the main beams, and the top of the bottom frame is connected to the limiting column, and the top of the limiting column can be inserted into the positioning groove to fix the support frame and the bottom frame to the main beam.

[0005] Preferably, the support frame includes a square top frame, the four corners of the square top frame are respectively connected to the columns, and the bottom frame is respectively connected to the four groups of columns through first fixing bolts.

[0006] Preferably, the limiting column can press the main beam tightly to the bottom of the square top frame.

[0007] Preferably, the square top frames of adjacent support frames are connected by a fixing assembly, which includes a first U-shaped plate and a second U-shaped plate, and the first U-shaped plate is sleeved between the two adjacent square top frames; the two side plates of the first U-shaped plate are respectively arranged at the top and bottom of the square top frame; the two side plates of the second U-shaped plate are respectively arranged on the outside of the two side plates of the first U-shaped plate, and a fixed space is formed between the first U-shaped plate and the second U-shaped plate, and the second fixing bolts pass through the first U-shaped plate and the second U-shaped plate respectively to be connected to the square top frame.

[0008] Preferably, two groups of second fixing bolts are provided, which are respectively connected to two adjacent square top frames.

[0009] Preferably, both ends of the main beam are connected to fixing plates for fixing to the wall, and bolt holes are provided on the fixing plates.

[0010] Compared with the existing technology, the above technical solution has the following advantages or beneficial effects:

[0011] 1. The utility model connects the main beam and the support frame detachably through a detachable bottom frame, so that the length of the truss can be installed on site according to actual conditions, which is easy to use and improves construction efficiency.

[0012] 2. The utility model connects the connected support frames through a fixing assembly, so that the connection between the two support frames is converted from general horizontal shear force to vertical shear force, with better shear resistance, and is suitable for the installation of large-span and high-strength trusses. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0014] Figure 1 It is a schematic structural diagram of the utility model.

[0015] Figure 2 It is a front view of the present utility model.

[0016] Figure 3 yes Figure 2 Cross-sectional view at point A.

[0017] Figure 4 This is a schematic diagram of the main beam structure.

[0018] Figure 5 It is a schematic diagram of the fixed component structure.

[0019] Description of reference numerals:

[0020] 1. Main beam; 2. Fixed plate; 3. Bottom frame; 4. Column; 5. Bolt hole; 6. First fixing bolt; 7. Fixing assembly; 71. First U-shaped plate; 72. Second U-shaped plate; 73. Second fixing bolt; 8. Limit column; 9. Positioning groove; 10. Square top frame. DETAILED DESCRIPTION

[0021] To clearly illustrate the technical features of this solution, the present invention is described in detail below using specific embodiments and accompanying drawings. The following disclosure provides numerous different embodiments or examples for implementing various configurations of the present invention. To simplify the disclosure of the present invention, the following descriptions focus on components and configurations of specific examples. Furthermore, the present invention may repeat reference numerals and / or letters across different examples. This repetition is for the purpose of simplicity and clarity and does not in itself indicate a relationship between the various embodiments and / or configurations discussed. It should be noted that the components illustrated in the accompanying drawings are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted to avoid unnecessarily limiting the present invention. Terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or elements referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In the description of this utility model, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or it can be internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0022] Example 1:

[0023] See also Figure 1-Figure 5 In order to facilitate on-site truss construction and multiple adjustments of the truss, this embodiment proposes a large-span steel structure truss, including at least two sets of main beams 1 arranged in parallel, a plurality of support frames are sleeved on the main beams 1, and the bottom of the support frames can be detachably connected to the bottom frame 3; a plurality of positioning grooves 9 are opened at the bottom of the main beam 1 along the direction of the main beam 1, and the top of the bottom frame 3 is connected to the limiting column 8, and the top of the limiting column 8 can be inserted into the positioning groove 9 to fix the support frame and the bottom frame 3 to the main beam 1.

[0024] The support frame in this embodiment includes a square top frame 10, the four corners of the square top frame 10 are respectively connected to the columns 4, the bottom frame 3 is respectively connected to the four groups of columns 4 through the first fixing bolts 6, and a limit column 8 is set on the inner side of the column 4 of the bottom frame 3. The limit column 8 can tighten the main beam 1 to the bottom of the square top frame 10.

[0025] Example 2:

[0026] Continue reading Figure 1-Figure 5 , the other parts are the same as those of the first embodiment, except that: in order to make the adjacent support frames more firmly fixed, the square top frames 10 of the adjacent support frames are connected by a fixing assembly 7, which includes a first U-shaped plate 71 and a second U-shaped plate 72. The first U-shaped plate 71 is sleeved between the two adjacent square top frames 10; the two side plates of the first U-shaped plate 71 are respectively arranged at the top and bottom of the square top frames 10; the two side plates of the second U-shaped plate 72 are respectively arranged on the outside of the two side plates of the first U-shaped plate 71, forming a fixed space between the first U-shaped plate and the second U-shaped plate 72, and the second fixing bolts 73 pass through the first U-shaped plate 71 and the second U-shaped plate 72 respectively to connect to the square top frame 10. In this embodiment, two groups of second fixing bolts 73 are provided, each connected to the two adjacent square top frames 10.

[0027] In this embodiment, in order to facilitate the connection between the truss and other parts, fixing plates 2 for fixing to the wall are connected to both ends of the main beam 1, and bolt holes 5 are provided on the fixing plates 2.

[0028] Directions:

[0029] Select a suitable main beam 1, and place the support frame on the two main beams 1 in turn, so that the main beam 1 is clamped to both sides of the square top frame 10; then clamp the top of the limit column 8 on the bottom frame 3 into the positioning groove 9, and connect the four corners of the bottom frame 3 to the bottom of the support frame through the first fixing bolt 6; at this time, the support frame and the main beam 1 are fixed; in order to better bear the weight, the square top frames 10 of adjacent support frames are clamped in opposite directions through the first U-shaped plate 71 and the second U-shaped plate 72, and fixed with the second fixing bolt 73 to improve the shear resistance.

[0030] The device can be hoisted to a designated location after installation, or the main crossbeam 1 can be hoisted and fixed first and then assembled and connected, so it has a wide range of applications.

[0031] Although the above describes the specific implementation methods of the utility model in conjunction with the accompanying drawings, it does not limit the scope of protection of the utility model. On the basis of the technical solution of the utility model, various modifications or variations that can be made by those skilled in the art without creative work are still within the scope of protection of the utility model.

Claims

1. A long-span steel structure truss, characterized by: The invention comprises at least two sets of parallel main beams (1), a plurality of support frames are sleeved on the main beams (1), and the bottom of the support frames is detachably connected to the bottom frame (3); a plurality of positioning grooves (9) are provided at the bottom of the main beams (1) along the direction of the main beams (1), and the top of the bottom frame (3) is connected to the limiting column (8), and the top of the limiting column (8) can be inserted into the positioning groove (9) to fix the support frame and the bottom frame (3) to the main beam (1).

2. The long-span steel structure truss according to claim 1, characterized in that: The support frame comprises a square top frame (10), the four corners of the square top frame (10) are respectively connected to the columns (4), and the bottom frame (3) is respectively connected to the four groups of columns (4) through first fixing bolts (6).

3. The long-span steel structure truss according to claim 1, characterized in that: The limiting column (8) can tighten the main beam (1) to the bottom of the square top frame (10).

4. The long-span steel structure truss according to claim 2, characterized in that: The square top frames (10) of adjacent support frames are connected via a fixing assembly (7), wherein the fixing assembly (7) comprises a first U-shaped plate (71) and a second U-shaped plate (72), wherein the first U-shaped plate (71) is sleeved between two adjacent square top frames (10); the two side plates of the first U-shaped plate (71) are respectively arranged at the top and bottom of the square top frames (10); the two side plates of the second U-shaped plate (72) are respectively arranged at the outer sides of the two side plates of the first U-shaped plate (71), and a fixed space is formed between the first U-shaped plate and the second U-shaped plate (72), and the second fixing bolts (73) respectively pass through the first U-shaped plate (71) and the second U-shaped plate (72) to be connected to the square top frames (10).

5. The long-span steel structure truss according to claim 4, characterized in that: Two groups of second fixing bolts (73) are provided, which are respectively connected to two adjacent square top frames (10).

6. The large-span steel structure truss according to claim 1, characterized in that: Both ends of the main beam (1) are connected to fixing plates (2) for fixing to the wall, and bolt holes (5) are provided on the fixing plates (2).

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