Steel structure support

Abstract

The utility model relates to the field of large-span steel truss or cantilever structure construction, in particular to a steel structure support which comprises a plurality of unit supports, and each unit support comprises four stand columns, two transverse supports and an inclined support. The lower end of each stand column is provided with a first flange connecting base, the upper end of each stand column is provided with a second flange connecting base, the unit supports are vertically connected through the first flange connecting bases, the second flange connecting bases, connecting bolts and connecting nuts, and the unit supports are divided into connecting supports and base supports. A rotating column is arranged at the lower end of one of the four stand columns of the connecting support, and a rotating slot is formed in the upper end. The base bracket is provided with an inserting groove corresponding to the rotating column on the lowermost connecting bracket; when the steel structure support is dismantled, the whole connecting support can be driven to rotate by rotating the rotating column, the safety of dismantling work is greatly improved, the turnover use efficiency of the support is improved, and the project construction cost is also reduced.

Description

Technical Field

[0001] The utility model relates to the field of large-span steel truss or cantilever structure construction, in particular to a steel structure bracket. Background Art

[0002] In steel structure construction, the design form of large-span steel truss structure or cantilever steel structure is very common. During the construction of large-span steel truss structure or cantilever steel structure, steel structure support frame is usually required for auxiliary support; the steel structure support frame is usually assembled from a number of unit brackets, and a jack is set on the top unit bracket close to the large-span steel truss structure or cantilever steel structure to support the large-span steel truss structure or cantilever steel structure; in order to ensure the safety of the large-span steel components during installation, the unit bracket is usually designed to be large in size and heavy in weight. Therefore, when removing the top section of the unit bracket, the following two methods are usually used: 1. Directly cut the unit bracket for removal; however, this method damages the unit bracket, making it impossible to circulate and use the unit bracket. It needs to be welded when it is used again, which not only wastes construction time, but also cannot guarantee that the support of the unit bracket after re-welding can meet the construction requirements; 2. First release the force of the jack, and then use the fall chain and lifting machinery to pull the top unit bracket horizontally. This is not only time-consuming and labor-intensive, but also extremely dangerous, and it is very easy to cause damage and deformation of the bracket. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a steel structure bracket which is easy to assemble, disassemble and use.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A steel structure support comprises a plurality of unit supports, which are in the shape of a quadrangular prism. Each unit support comprises four columns. Two horizontal braces and one diagonal brace are arranged between each two adjacent columns. The two horizontal braces are arranged at intervals at the upper and lower ends, and the diagonal brace is located between the two horizontal braces. A first flange connecting seat is arranged at the lower end of each column, and a second flange connecting seat is arranged at the upper end. The plurality of unit supports are connected up and down through the first flange connecting seat, the second flange connecting seat, connecting bolts and connecting nuts. The unit support is divided into a connecting support and a base support. A rotating column is arranged at the lower end of one of the four columns of the connecting support, and a rotating slot is arranged at the upper end. When the connecting supports are connected up and down, the rotating column of the upper connecting support is inserted into the rotating slot of the lower connecting support. The base support is provided with a plug-in slot corresponding to the rotating column on the lowest connecting support.

[0006] Compared with the prior art, the utility model adopting the above technical solution has the following outstanding features:

[0007] The utility model has a simple structure and is extremely easy to connect when used on site. When the steel structure support is dismantled, the connecting bolts and connecting nuts are removed and the rotating column is rotated, which can drive the entire connecting support to rotate, greatly improving the safety of the dismantling work. Compared with horizontal pulling and cutting, the turnover efficiency of the support is improved and the project construction cost is also reduced.

[0008] As a preferred embodiment, a further technical solution of the utility model is:

[0009] Preferably, a connecting flange is provided at the upper end of the rotating column corresponding to the first flange connecting seat, and a sealing plate is provided at the lower end; the connecting flange is welded and fixed on the lower side of the first flange connecting seat and is opposite to the hole position of the first flange connecting seat; the connecting flange facilitates the initial docking of the rotating column and the first flange connecting seat, and the sealing plate enhances the torsional strength of the rotating column. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the connecting bracket in the embodiment of the utility model;

[0011] Figure 2 It is a structural schematic diagram of a column with a rotating column in an embodiment of the utility model;

[0012] Figure 3 It is a schematic diagram of the structure of the rotating column in the embodiment of the utility model;

[0013] Figure 4 It is a structural schematic diagram of the steel structure support in the embodiment of the utility model.

[0014] Explanation of the reference numerals: 1. column; 101. first flange connection seat; 102. second flange connection seat; 2. cross brace; 3. diagonal brace; 4. rotating column; 401. connecting flange; 5. rotating slot; 6. reinforcing rib; 7. sealing plate; 8. supporting base; 9. supporting top seat. DETAILED DESCRIPTION

[0015] The present invention is further described below in conjunction with specific embodiments, the purpose of which is only to provide a better understanding of the content of the present invention. Therefore, the examples given do not limit the protection scope of the present invention.

[0016] like Figure 4 As shown, this embodiment provides a steel structure support, including a plurality of unit supports, the unit supports are in the shape of a quadrangular prism, such as Figure 1Each unit bracket includes four columns 1. Two horizontal braces 2 and one diagonal brace 3 are arranged between each two adjacent columns 1. The two horizontal braces 2 are arranged at intervals in the upper and lower parts, and the diagonal brace 3 is located between the two horizontal braces 2. The horizontal braces 2 and the diagonal brace 3 can be welded and fixed to the columns 1, and can also be connected through the connecting ears arranged on the columns. A first flange connection seat 101 is arranged at the lower end of each column 1, and a second flange connection seat 102 is arranged at the upper end. Several unit brackets are connected up and down through the first flange connection seat 101, the second flange connection seat 102, the connecting bolts and the connecting nuts. The unit bracket is divided into a connecting bracket and a base bracket; as shown in FIG. Figure 2 One of the four columns 1 of the connecting bracket is provided with a rotating column 4 at the lower end and a rotating slot 5 at the upper end; when the connecting brackets are connected up and down, the rotating column 4 of the upper connecting bracket is inserted into the rotating slot 5 of the lower connecting bracket; the base bracket is provided with a plug-in slot corresponding to the rotating column 4 on the lowest connecting bracket.

[0017] Further, such as Figure 3 As shown, a connecting flange 401 is provided at the upper end of the rotating column 4 corresponding to the first flange connecting seat 101, and a sealing plate 7 is provided at the lower end; the connecting flange 401 is welded and fixed to the lower side of the first flange connecting seat 101 and is opposite to the hole position of the first flange connecting seat 101; the connecting flange 401 facilitates the initial docking of the rotating column 4 and the first flange connecting seat 101, and the sealing plate 7 strengthens the torsional strength of the rotating column 4; it should be noted that the size, plate thickness and bolt hole position of the connecting flange 401 should be consistent with the first flange connecting seat 101 to which it is connected.

[0018] Before installing the steel structure support, the connecting flange 401 of the rotating column 4 is temporarily connected to the lower side of the first flange connecting seat 101 at the lower end of a column 1 of the unit support by bolts and nuts, and then the connecting flange 401 and the first flange connecting seat 101 are fully penetrated and welded, and then the bolts and nuts are removed, and the unit support welded with the rotating column 4 is used as a connecting support.

[0019] Furthermore, the column 1 may be made of a hollow steel pipe, and the hollow structure inside the hollow steel pipe is used as a rotating socket. In this case, the outer diameter of the rotating column 4 should be slightly smaller than the inner diameter of the hollow steel pipe.

[0020] When supporting the steel structure support, first set up the support base 8, then connect the base support to the support base 8 through the first flange connection seat 101, connecting bolts, and connecting nuts, and then select a suitable number of connecting brackets for connection according to the height of the structure to be supported. Finally, connect the support top seat 9 at the top of the connecting bracket through the second flange connection seat 102, connecting bolts, and connecting nuts, and set a jack on the support top seat 9 to support the structure to be constructed.

[0021] During dismantling, first release the force of the jack, and then dismantle the unit bracket from top to bottom. After removing the connecting bolts and connecting nuts on the first flange connecting seat 101 of each layer of connecting bracket in turn, take the rotating column 4 as the axis and rotate the connecting bracket as a whole by pulling the column 1 without the rotating column 4, rotate it to the outside of the large-span steel truss structure or the cantilevered steel structure, and use a crane to pull out the connecting bracket as a whole, so as to achieve the purpose of safely and conveniently dismantling the bracket. During construction, construction personnel can also choose to use ordinary unit brackets and connecting brackets in the present invention in combination according to on-site construction requirements.

[0022] The above description is only a preferred feasible embodiment of the present utility model, and does not limit the scope of rights of the present utility model. All equivalent changes made using the contents of the present utility model specification and its drawings are included in the scope of rights of the present utility model.

Claims

1. A steel structure support, comprising a plurality of unit supports, the unit supports are in the shape of a quadrangular prism, each unit support comprises four columns (1), two cross braces (2) and one diagonal brace (3) are arranged between each two adjacent columns (1), the two cross braces (2) are arranged at intervals in the upper and lower parts, and the diagonal brace (3) is located between the two cross braces (2); a first flange connection seat (101) is arranged at the lower end of each column (1), and a second flange connection seat (102) is arranged at the upper end, and a plurality of unit supports are connected up and down through the first flange connection seat (101), the second flange connection seat (102), connecting bolts and connecting nuts, characterized in that: The unit bracket is divided into a connecting bracket and a base bracket; One of the four uprights (1) of the connecting bracket is provided with a rotating column (4) at the lower end and a rotating slot (5) at the upper end; when the connecting brackets are connected up and down, the rotating column (4) of the upper connecting bracket is inserted into the rotating slot (5) of the lower connecting bracket; and the base bracket is provided with a plug-in slot corresponding to the rotating column (4) on the lowermost connecting bracket.

2. The steel structure support according to claim 1, characterized in that: A connecting flange (401) is provided at the upper end of the rotating column (4) corresponding to the first flange connecting seat (101), and a sealing plate (7) is provided at the lower end; the connecting flange (401) is welded and fixed to the lower side of the first flange connecting seat (101) and is opposite to the hole position of the first flange connecting seat (101).

Images