Adjustable steel structure roof support and construction method

Abstract

The invention provides an adjustable steel structure roof support, and belongs to the field of constructional engineering, the adjustable steel structure roof support comprises a plurality of steel frame stand columns and a plurality of steel structure net blocks, the plurality of steel frame stand columns are respectively arranged on bearing points preset according to a preset place shape, the edges of the plurality of steel structure net blocks are sequentially welded to form a whole steel structure net, and the steel structure net blocks are arranged on the steel frame stand columns. A column foot is arranged at the top end of the steel frame stand column and is in a claw shape, and a plurality of supporting ends of the column foot are welded to the bottom faces of the steel structure net blocks respectively. According to the method, the whole steel net frame is divided into the multiple steel structure net sub-blocks, the steel structure net sub-blocks are hoisted to the installation positions correspondingly, and then the steel structure net sub-blocks are assembled into the whole steel net frame, so that the field operation amount can be reduced, the construction time is shortened, the construction efficiency is improved, meanwhile, the use time of large machines is shortened, and the machine cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of building engineering, and in particular to an adjustable steel structure roof support and a construction method. Background Art

[0002] The grid structure is a spatial structure formed by connecting multiple rods through nodes in a certain grid form. It has the advantages of small spatial force, light weight, high rigidity, and good seismic performance. It is widely used in the roofs of gymnasiums, theaters, exhibition halls, waiting halls, stadium stand awnings, hangars, and two-way large column spacing workshops.

[0003] However, steel grid installation is a complex task, which is greatly affected by external factors. Traditional steel grid installation adopts the overall hoisting method. Since the steel grid required for general buildings is large in size, large lifting machinery is required to hoist the entire grid structure into place at one time. It is highly dependent on lifting machinery and has high requirements for the site, requiring sufficient space and a suitable crane path. This results in low overall construction efficiency and high machinery costs. Summary of the invention

[0004] The object of the present invention is to provide an adjustable steel structure roof support and a construction method, which can speed up construction efficiency and reduce machinery costs.

[0005] In a first aspect, an embodiment of the present invention is implemented through the following technical scheme: an adjustable steel structure roof support, comprising a plurality of steel frame columns and a plurality of steel structure mesh blocks, wherein the plurality of steel frame columns are respectively arranged at bearing points preset according to a preset site shape, and the edges of the plurality of steel structure mesh blocks are welded in sequence to form a steel structure mesh as a whole, and a column foot is arranged at the top of the steel frame column, and the column foot is claw-shaped, and a plurality of supporting ends of the column foot are respectively welded to the bottom surface of the steel structure mesh block.

[0006] Furthermore, the steel structure mesh block includes a frame, a longitudinal main box beam, a transverse secondary box beam and an edge box beam. The longitudinal main box beam and the transverse secondary box beam are arranged on the frame. The longitudinal main box beam and the transverse secondary box beam are cross-arranged along the longitudinal and transverse directions respectively. The edge box beam is arranged at the edge of the steel structure mesh block, and the edge box beam is welded to the edges of the longitudinal main box beam and the transverse secondary box beam.

[0007] Furthermore, the column foot includes a first column foot and a second column foot, the first column foot is rigidly connected to the top end of the steel frame column, and the second column foot is hinged to the top end of the steel frame column.

[0008] Furthermore, a snap-fitting edge is provided at the bottom of the second column foot, an arc-shaped abutting portion is provided at the center of the snap-fitting edge, a spherical supporting seat is provided at the top end of the steel frame column, a raised edge is provided at the top edge of the spherical supporting seat, the snap-fitting edge is snap-fitted with the raised edge, an arc-shaped abutting groove is provided on the top surface of the spherical supporting seat, and the arc-shaped abutting portion rotates and abuts in the arc-shaped abutting groove.

[0009] Furthermore, a temporary support frame is arranged below the steel structure mesh block, and the temporary support frame includes a base, a frame body, a conversion beam and a support adjustment section. The base is arranged on the ground, the frame body is arranged on the base, the conversion beam is arranged at the top of the frame body, and the support adjustment section is arranged on the conversion beam. The top of the support adjustment section is detachably connected to the bottom surface of the steel structure mesh block.

[0010] In a second aspect, the present disclosure provides an adjustable steel structure roof support and construction method, comprising: obtaining the shape of a building, dividing a preset steel structure mesh as a whole into a plurality of steel structure mesh blocks according to the shape of the building, numbering the plurality of steel structure mesh blocks, and setting steel frame columns on the ground according to the stress points of each of the steel structure mesh blocks;

[0011] Connecting and assembling the tire frame, the longitudinal main box beam, the transverse secondary box beam and the edge box beam on the ground to form the steel structure mesh blocks;

[0012] Hoisting the steel structure net blocks to the top of the steel frame column, and welding the steel structure net blocks to the top of the steel frame column to obtain a basic unit;

[0013] The remaining steel structure mesh blocks are hoisted to the side of the basic unit, and the edges of the plurality of steel structure mesh blocks are welded in sequence according to the numbering sequence.

[0014] Furthermore, the step of connecting and assembling the tire frame, the longitudinal main box beam, the transverse secondary box beam and the edge box beam on the ground into the steel structure mesh blocks includes:

[0015] Obtaining the placement position of the tire frame according to the shape of the steel structure mesh blocks, and placing a plurality of the tire frames at corresponding placement positions;

[0016] Placing the longitudinal main box girder on the tire frame, the longitudinal main box girder is placed along the longitudinal axis of the steel structure mesh block, and there are at least two tire frames at the bottom of the longitudinal main box girder;

[0017] The transverse secondary box beams are sequentially welded to the longitudinal main box beams, and there are at least two intersections between the transverse secondary box beams and the longitudinal main box beams;

[0018] The edge-closing box beam is arranged at the ends of the longitudinal main box beam and the transverse secondary box beam, and the edge-closing box beam forms the edge of the steel structure mesh block to obtain the steel structure mesh block.

[0019] The technical solution of the embodiment of the present invention has at least the following advantages and beneficial effects:

[0020] 1. The present invention can reduce the amount of on-site work, shorten the construction time, improve construction efficiency, reduce the use time of large machinery, and reduce machinery costs by dividing the steel grid frame as a whole into multiple steel structure mesh blocks, hoisting the steel structure mesh blocks to the installation positions respectively, and then assembling the steel structure mesh blocks into the steel grid frame as a whole.

[0021] 2. The present invention assembles and welds the steel structure mesh in blocks at a ground assembly site, thereby utilizing the convenience of ground operations, improving operation efficiency, and reducing the risk and time of high-altitude operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the distribution of the steel structure mesh blocks in the present invention;

[0025] Figure 3 It is a schematic diagram of the structure of the steel structure mesh blocks in the present invention;

[0026] Figure 4 It is a schematic diagram of the connection between the first column foot and the steel frame column in the present invention;

[0027] Figure 5 It is a schematic diagram of the connection between the second column foot and the steel frame column in the present invention;

[0028] Figure 6 for Figure 5 The enlarged schematic diagram of part A in the middle;

[0029] Figure 7 It is a schematic diagram of the structure of the temporary support frame in the present invention;

[0030] Figure 8 A schematic diagram of the flow chart of the adjustable steel structure roof support construction method.

[0031] Icons: 10. Steel grid; 1. Tire frame; 12. Longitudinal main box girder; 13. Transverse secondary box girder; 14. Edge box girder; 20. Steel frame column; 21. Spherical support seat; 22. Arc-shaped abutment groove; 23. Raised edge; 310. First column foot; 320. Second column foot; 321. Mounting seat; 322. Snap-fit ​​edge; 323. Arc-shaped abutment portion; 40. Base; 41. Frame; 42. Transfer beam; 43. Support adjustment section. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Example

[0035] The following is further described in conjunction with specific embodiments.

[0036] Embodiment 1, refer to Figure 1-Figure 7 As shown, the present invention is an adjustable steel structure roof support.

[0037] Reference Figure 1 and Figure 2 , including a plurality of steel structure mesh blocks, the plurality of steel structure mesh blocks are sequentially connected end to end to form a steel grid frame 10. The edges of adjacent steel structure mesh blocks are welded.

[0038] Reference Figure 3The steel structure mesh blocks include a tire frame 1, a longitudinal main box beam 12, a transverse secondary box beam 13 and an edge box beam 14. The tire frame 1 is used to support the longitudinal main box beam 12, the transverse secondary box beam 13 and the edge box beam 14, and the bottom surface of the tire frame 1 is in contact with the ground. The longitudinal main box beam 12 and the transverse secondary box beam 13 are arranged on the top surface of the tire frame 1, and the longitudinal main box beam 12 and the transverse secondary box beam 13 extend along the longitudinal axis and the transverse axis of the steel grid frame 10 as a whole, respectively. At least two tire frames 1 are arranged at the bottom end of the longitudinal main box beam 12, and at least two tire frames 1 are used to keep the longitudinal main box beam 12 in a horizontal posture. The longitudinal main box beam 12 and the transverse secondary box beam 13 are arranged crosswise, and there are at least two intersections between each transverse secondary box beam 13 and the longitudinal main box beam 12. The edge box beam 14 is arranged at the edge of the longitudinal main box beam 12 and the transverse secondary box beam 13. The edge box beam 14 constitutes the edge component of the steel structure mesh block, which is used to undertake the task of transferring the load to the supporting structure, thereby enhancing the bearing capacity of the entire steel structure mesh block structure.

[0039] Reference Figure 2 , a steel frame column 20 is provided at the bottom of the steel structure mesh block, and the steel frame column 20 is used to support the steel structure mesh block. The bottom end of the steel frame column 20 is fixed to the ground, and a column foot is detachably installed on the top of the steel frame column 20, and the bottom end of the column foot is connected to the top of the steel frame column 20 through a plurality of screws. The top of the column foot is in an octagonal shape, and the top of the column foot is welded to the bottom surface of the steel structure mesh block. In this embodiment, the distribution position of the steel frame column 20 is set according to the shape of the building and the distribution of the center of gravity of the steel structure mesh block.

[0040] Reference Figure 4 and Figure 5 The column foot includes a first column foot 310 and a second column foot 320. The bottom surface of the first column foot 310 is a plane. The bottom surface of the first column foot 310 abuts against the top surface of the steel frame column 20. The first column foot 310 is fixedly connected to the top of the steel frame column 20 by a screw. The first column foot 310 is set between the first steel structure mesh block and the steel frame column 20.

[0041] Reference Figure 5 and Figure 6 The bottom end of the second column foot 320 is fixedly mounted with a mounting seat 321, and the bottom surface of the mounting seat 321 is provided with a buckling edge 322, which protrudes from the bottom surface of the mounting seat 321 and is bent toward the center direction of the mounting seat 321. The center protrusion of the mounting seat 321 is provided with an arc-shaped abutment portion 323.

[0042] The top of the steel frame column 20 mounted with the second column foot 320 is installed with a spherical support seat 21, and the top surface of the spherical support seat 21 is provided with an arc-shaped abutment groove 22, and the arc-shaped abutment portion 323 is rotatably abutted in the arc-shaped abutment groove 22. The side of the spherical support seat 21 is provided with a raised edge 23, and the raised edge 23 abuts against the side of the buckle edge 322 facing the bottom surface of the mounting seat 321, which is used to limit the separation of the mounting seat 321 from the spherical support seat 21. The arc-shaped abutment portion 323 is rotatably abutted in the arc-shaped abutment groove 22, so that the mounting seat 321 can rotate relative to the spherical support seat 21, so as to adjust the orientation angle of the second column foot 320, and it is more convenient to connect the second column foot 320 with the steel structure in blocks. The bottom end surface of the spherical support seat 21 is a plane, the bottom end of the spherical support seat 21 abuts against the top end of the steel frame column 20, and the spherical support seat 21 is fixedly connected to the steel frame column 20 by a plurality of screws.

[0043] Reference Figure 7 A temporary support frame is also provided at the bottom of the steel structure mesh block, and the temporary support frame is used to temporarily support the steel structure mesh block. Specifically, the temporary support frame includes a base 40, a frame body 41, a conversion beam 42 and a support adjustment section 43. The base 40 is connected to the ground through expansion screws to ensure that it will not move or overturn when subjected to force. The bottom end of the frame body 41 is connected to the base 40 through a clamping plate, and the frame body 41 includes a plurality of standard sections. The frame body 41 is used to directly support the steel mesh frame 10 above. The conversion beam 42 is provided between the top of the frame body 41 and the support adjustment section 43, and the conversion beam 42 is connected to the top of the frame body 41 through a clamping plate. The support adjustment section 43 is an I-beam, and the top of the support adjustment section 43 abuts against the bottom surface of the steel structure mesh block.

[0044] Example 2, refer to Figure 8 As shown, the present invention is an adjustable steel structure roof support construction method, comprising:

[0045] Step 210, obtain the shape of the building, divide the preset steel structure mesh into multiple steel structure mesh blocks according to the shape of the building, number the multiple steel structure mesh blocks, and set steel frame columns 20 on the ground according to the stress points of each steel structure mesh block.

[0046] The steel structure mesh as a whole is designed according to the shape of the building, and the steel structure mesh as a whole is divided into a plurality of steel structure mesh blocks. The plurality of steel structure mesh blocks are numbered so as to facilitate the determination of the position of each steel structure mesh block during installation. At the same time, the position of the steel frame column 20 is determined according to the structure of the building, and the steel frame column 20 can support each steel structure mesh block.

[0047] By hoisting multiple steel structure mesh blocks to the installation location separately, the amount of on-site work can be reduced, the construction time can be shortened, and the construction efficiency can be improved. At the same time, the use time of large machinery can be reduced, and the machinery cost can be reduced. Multiple steel structure mesh blocks are spliced ​​together to form a whole steel structure mesh.

[0048] Step 220, connecting and assembling the tire frame 1, the longitudinal main box beam 12, the transverse secondary box beam 13 and the edge box beam 14 on the ground into the steel structure mesh blocks.

[0049] Obtain the structure of each steel structure mesh block, assemble the tire frame 1, the longitudinal main box beam 12, the transverse secondary box beam 13 and the edge box beam 14 at the ground assembly site to obtain the steel structure mesh block. Assemble and weld at the ground assembly site, take advantage of the convenience of ground operations, improve operation efficiency, and reduce the risk and time of high-altitude operations.

[0050] Step 230, hoisting the steel structure mesh blocks to the top of the steel frame column 20, and welding the steel structure mesh blocks to the top of the steel frame column 20 to obtain a basic unit.

[0051] First, one of the steel structure net blocks is hoisted to the top of the steel frame column 20 as a basic unit, with the basic unit as the starting point. After determining the basic unit, it is convenient to determine the position of other steel structure net blocks relative to the basic unit, which is beneficial to the subsequent installation work.

[0052] Step 240, hoist the remaining steel structure mesh blocks to the side of the basic unit, and weld the edges of the plurality of steel structure mesh blocks in sequence according to the numbering sequence.

[0053] According to the overall shape of the steel structure mesh, the adjacent numbered steel structure mesh blocks are hoisted to the side of the basic unit, so that the hoisted steel structure mesh blocks are opposite to the edges of the steel structure mesh blocks of the basic unit, and the edges of the two steel structure mesh blocks are welded.

[0054] The steps of connecting and assembling the tire frame 1, the longitudinal main box beam 12, the transverse secondary box beam 13 and the edge box beam 14 on the ground into the steel structure mesh blocks include:

[0055] 221. Obtain the placement position of the tire frame 1 according to the shape of the steel structure mesh blocks, and place a plurality of the tire frames 1 at corresponding placement positions;

[0056] 222. Place the longitudinal main box girder 12 on the tire frame 1, the longitudinal main box girder 12 is placed along the longitudinal axis of the steel structure mesh block, and there are at least two tire frames 1 at the bottom of the longitudinal main box girder 12;

[0057] 223. Weld the transverse secondary box beam 13 to the longitudinal main box beam 12 in sequence, and there are at least two intersections between the transverse secondary box beam 13 and the longitudinal main box beam 12;

[0058] 224. The edge-closing box beam 14 is arranged at the ends of the longitudinal main box beam 12 and the transverse secondary box beam 13, and the edge-closing box beam 14 forms the edge of the steel structure mesh block to obtain the steel structure mesh block.

[0059] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An adjustable steel structure roof support, characterized by: It comprises a plurality of steel frame columns (20) and a plurality of steel structure mesh blocks, wherein the plurality of steel frame columns (20) are respectively arranged at bearing points preset according to a preset location shape, and the edges of the plurality of steel structure mesh blocks are welded in sequence to form a steel structure mesh as a whole, and a column foot is arranged at the top end of the steel frame column (20), and the column foot is claw-shaped, and a plurality of supporting ends of the column foot are respectively welded to the bottom surface of the steel structure mesh block.

2. The adjustable steel structure roof support according to claim 1, characterized in that: The steel structure mesh block comprises a frame (1), a longitudinal main box girder (12), a transverse secondary box girder (13) and an edge box girder (14); the longitudinal main box girder (12) and the transverse secondary box girder (13) are arranged on the frame (1); the longitudinal main box girder (12) and the transverse secondary box girder (13) are arranged crosswise along the longitudinal and transverse directions respectively; the edge box girder (14) is arranged at the edge of the steel structure mesh block; the edge box girder (14) is welded to the edges of the longitudinal main box girder (12) and the transverse secondary box girder (13).

3. The adjustable steel structure roof support according to claim 1, characterized in that: The column foot comprises a first column foot (310) and a second column foot (320), wherein the first column foot (310) is rigidly connected to the top end of the steel frame column (20), and the second column foot (320) is hinged to the top end of the steel frame column (20).

4. The adjustable steel structure roof support according to claim 3, characterized in that: A snap-fitting edge (322) is provided at the bottom of the second column foot (320), and an arc-shaped abutting portion (323) is provided at the center of the snap-fitting edge (322). A spherical support seat (21) is provided at the top end of the steel frame column (20), and a raised edge (23) is provided at the top edge of the spherical support seat (21). The snap-fitting edge (322) is snapped with the raised edge (23), and an arc-shaped abutting groove (22) is provided on the top surface of the spherical support seat (21), and the arc-shaped abutting portion (323) is rotatably abutted in the arc-shaped abutting groove (22).

5. The adjustable steel structure roof support according to claim 1, characterized in that: A temporary support frame is arranged below the steel structure mesh block, and the temporary support frame comprises a base (40), a frame body (41), a conversion beam (42) and a support adjustment section (43); the base (40) is arranged on the ground, the frame body (41) is arranged on the base (40), the conversion beam (42) is arranged at the top end of the frame body (41), the support adjustment section (43) is arranged on the conversion beam (42), and the top end of the support adjustment section (43) is detachably connected to the bottom surface of the steel structure mesh block.

6. A construction method for an adjustable steel structure roof support as claimed in any one of claims 1 to 5, characterized in that: Obtaining the shape of the building, dividing the preset steel structure mesh into a plurality of steel structure mesh blocks according to the shape of the building, numbering the plurality of steel structure mesh blocks, and setting steel frame columns (20) on the ground according to the stress points of each steel structure mesh block; On the ground, the tire frame (1), the longitudinal main box beam (12), the transverse secondary box beam (13) and the edge box beam (14) are connected and assembled into the steel structure mesh blocks; The steel structure net blocks are hoisted to the top of the steel frame column (20), and the steel structure net blocks are welded to the top of the steel frame column (20) to obtain a basic unit; The remaining steel structure mesh blocks are hoisted to the side of the basic unit, and the edges of the plurality of steel structure mesh blocks are welded in sequence according to the numbering sequence.

7. The construction method according to claim 6, characterized in that: The step of connecting and assembling the tire frame (1), the longitudinal main box beam (12), the transverse secondary box beam (13) and the edge box beam (14) on the ground into the steel structure mesh blocks comprises: Obtaining the placement position of the tire frame (1) according to the shape of the steel structure mesh blocks, and placing a plurality of the tire frames (1) at corresponding placement positions; The longitudinal main box girder (12) is placed on the tire frame (1), the longitudinal main box girder (12) is placed along the longitudinal axis of the steel structure mesh block, and there are at least two tire frames (1) at the bottom of the longitudinal main box girder (12); The transverse secondary box beam (13) is sequentially welded to the longitudinal main box beam (12), and there are at least two intersection points between the transverse secondary box beam (13) and the longitudinal main box beam (12); The edge-closing box beam (14) is arranged at the ends of the longitudinal main box beam (12) and the transverse secondary box beam (13), and the edge-closing box beam (14) forms the edge of the steel structure mesh block to obtain the steel structure mesh block.

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