Jig-frame-free combined supporting installation oversized cantilever steel structure

Abstract

The utility model provides a jig-frame-free combined support installation oversized overhanging steel structure, which relates to the technical field of overhanging steel structures, and comprises a non-overhanging area steel frame and two overhanging steel beams, the two overhanging steel beams are arranged on one side of the non-overhanging area steel frame in parallel, the top surfaces of the overhanging steel beams are provided with on-beam columns, and the on-beam columns are arranged on the other side of the non-overhanging area steel frame. The jig-frame-free combined support is provided with an oversized overhanging steel structure, so that one side of the steel frame in the non-overhanging area, the overhanging steel beam and the roof layer overhanging beam are clamped in limiting grooves of the limiting supports through limiting blocks arranged on the overhanging steel beam and the roof layer overhanging beam, and the supporting and fixing effects are achieved on the overhanging steel beam and the roof layer overhanging beam; therefore, the effect that the cantilever steel beam and the roof layer cantilever beam are fixed to the non-cantilever area steel frame in advance is achieved, the non-cantilever area steel frame, the cantilever steel beam and the roof layer cantilever beam can be accurately in butt joint under the condition that supporting is not needed, and follow-up fixing work of the non-cantilever area steel frame, the cantilever steel beam and the roof layer cantilever beam is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of cantilever steel structures, in particular to a tire-free combined support installation of an ultra-large cantilever steel structure. Background Art

[0002] However, as the requirements for functional use and aesthetics of buildings become increasingly higher, the structural forms of buildings are becoming more complex and diverse, such as buildings with irregular planes, buildings with transfer floors, vertical indentations and cantilevered buildings. During the construction of existing large cantilevered steel structures, in order to ensure the quality and safety of hoisting construction, a supporting cradle is usually set up. The supporting cradle is a scaffolding that can bear the weight and overall lifting of the cantilevered steel structure.

[0003] In the existing tireless frame combination support installation of super-large cantilever steel structure in the basement on-site construction scenario, usually a non-cantilever area steel frame, cantilever steel beams and roof layer cantilever beams are set up, and they are connected and fixed before pouring concrete to achieve overall stability. However, in the process of docking and fixing the non-cantilever area steel frame and the cantilever steel beam, since the cantilever steel beam is in a suspended state, it is necessary to support the cantilever steel beam during the fixing process. If the docking position is offset during welding, it will cause damage to the overall force system.

[0004] Therefore, it is necessary to provide a new tireless frame combined support installation super-large cantilever steel structure to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a tireless frame combined support installation super-large cantilever steel structure.

[0006] The tireless frame combined support installation super-large cantilever steel structure provided by the utility model comprises a non-cantilever area steel frame and two cantilever steel beams, the two cantilever steel beams are arranged in parallel on one side of the non-cantilever area steel frame, the top surface of the cantilever steel beam is installed with a beam upper column, the top surface of the beam upper column is installed with a roof layer cantilever beam, and a cantilever beam inter-beam cross beam is installed between the two roof layer cantilever beams and between the two cantilever steel beams respectively, and a plurality of connecting components are provided between the roof layer cantilever beam and the non-cantilever area steel frame;

[0007] The connecting assembly includes a fixing plate installed on the steel frame in the non-cantilevered area and a limiting bracket installed on both sides of the cantilevered steel beam and the roof layer cantilevered beam. The two ends of the inner wall of the fixing plate are respectively opposite and sequentially provided with springs and limiting blocks, and the limiting blocks extend out of the outer wall of the fixing plate. A limiting groove matching the size of the limiting block is provided on the limiting bracket, and a guide bracket matching the fixing groove provided on the fixing plate is installed on the side of the limiting bracket adjacent to the limiting block.

[0008] Furthermore, a tie rod is provided between the non-cantilevered area steel frame and the adjacent beam upper column, and the tie rod is arranged obliquely.

[0009] Furthermore, the non-cantilever area steel frame includes a steel frame column, which is arranged on one side close to the cantilever steel beam and the roof layer cantilever beam, and a steel beam flange is formed between the beam upper column and the cantilever steel beam, and mounting bolts are provided between one end of the tie rod and the steel frame column and between the other end of the tie rod and the steel beam flange.

[0010] Furthermore, high-strength bolts are provided at the intersection between the bottom end of the beam column and the cantilever steel beam, and at the intersection between the top end of the beam column and the cantilever beam of the roof layer.

[0011] Furthermore, the non-cantilevered area steel frame includes a cantilevered connecting beam, stirrups are provided on the steel frame columns, and the steel frame columns and the cantilevered connecting beams are fixed by the stirrups.

[0012] Furthermore, a plurality of columns are provided between the two cantilever beams and the cross beams, the plurality of columns are arranged in parallel, an oblique rod is provided between two adjacent columns, and the oblique rod is obliquely fixed at the diagonal of the two adjacent columns.

[0013] Furthermore, the cantilever steel beams, beam columns, roof layer cantilever beams and cross beams between cantilever beams are assembled to form a main load-bearing frame, and a concrete layer is poured outside the main load-bearing frame and the non-cantilever area steel frame.

[0014] Compared with the related art, the tireless frame combined support installation of the super-large cantilever steel structure provided by the utility model has the following beneficial effects:

[0015] The tireless frame combination supports the installation of the super-large cantilever steel structure, so that one side of the steel frame in the non-cantilever area and the cantilever steel beam and the roof layer cantilever beam are engaged in the limit groove of the limit bracket through the limit block provided thereon, thereby supporting and fixing them, thereby achieving the effect of pre-fixing the cantilever steel beam and the roof layer cantilever beam on the steel frame in the non-cantilever area, so that the steel frame in the non-cantilever area and the cantilever steel beam and the roof layer cantilever beam can be accurately docked and pre-fixed without support, which is convenient for the subsequent work of fixing them. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the tireless frame combined support installation of the super-large cantilever steel structure provided by the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the non-cantilevered area steel frame and the main load-bearing frame provided by the utility model;

[0018] Figure 3This is a schematic diagram of the split structure of the non-cantilevered area steel frame and the main load-bearing frame provided by the present invention;

[0019] Figure 4 A schematic structural diagram of the fixing plate provided by the present invention;

[0020] Figure 5 A schematic diagram of the structure of the limit bracket provided by the utility model;

[0021] Figure 6 This is a schematic cross-sectional structural diagram of the fixing plate and the limiting bracket provided by the utility model.

[0022] Numbers in the figure: 1. Steel frame in non-cantilevered area; 11. Cantilevered mounting beam; 12. Cantilevered fixed beam; 13. Fixed column; 14. Cantilevered connecting beam; 15. Steel column; 16. Reinforced diagonal rod; 17. Stirrups; 2. Main load-bearing frame; 21. Cantilevered steel beam; 22. Column on beam; 23. Cantilevered beam of roof layer; 24. Cross beam between cantilevered beams; 25. Pull rod; 26. Mounting bolt; 27. High-strength bolt; 31. Column; 32. Diagonal rod; 4. Connecting assembly; 41. Fixing plate; 42. Spring; 43. Limit block; 44. Limit bracket; 45. Limit groove; 46. Guide bracket. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0024] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 as well as Figure 6 , Figure 1 This is a schematic diagram of the overall structure of the tireless frame combined support installation of the super-large cantilever steel structure provided by the utility model; Figure 2 This is a schematic diagram of the structure of the non-cantilevered area steel frame and the main load-bearing frame provided by the utility model; Figure 3 This is a schematic diagram of the split structure of the non-cantilevered area steel frame and the main load-bearing frame provided by the present invention; Figure 4 A schematic structural diagram of the fixing plate provided by the present invention; Figure 5 A schematic diagram of the structure of the limit bracket provided by the utility model; Figure 6 This is a schematic cross-sectional structural diagram of the fixing plate and the limiting bracket provided by the utility model.

[0025] In the specific implementation process, Figures 1 to 6As shown, the tireless combined support installation of the super-large cantilever steel structure includes a non-cantilever area steel frame 1 and two cantilever steel beams 21, the two cantilever steel beams 21 are arranged in parallel on one side of the non-cantilever area steel frame 1, the top surface of the cantilever steel beam 21 is installed with a beam column 22, the top surface of the beam column 22 is installed with a roof layer cantilever beam 23, and a cantilever beam cross beam 24 is installed between the two roof layer cantilever beams 23 and between the two cantilever steel beams 21 respectively, and a plurality of connecting components 4 are arranged between the roof layer cantilever beam 23 and the non-cantilever area steel frame 1; the connecting components Component 4 includes a fixing plate 41 installed on the non-cantilevered area steel frame 1 and a limiting bracket 44 installed on both sides of the cantilevered steel beam 21 and the roof layer cantilevered beam 23. The two ends of the inner wall of the fixing plate 41 are respectively opposite and sequentially provided with a spring 42 and a limiting block 43, and the limiting block 43 extends out of the outer wall of the fixing plate 41. The limiting bracket 44 is provided with a limiting groove 45 that matches the size of the limiting block 43. A guide bracket 46 that matches the fixing groove provided on the fixing plate 41 is installed on the side of the limiting bracket 44 adjacent to the limiting block 43.

[0026] The non-cantilevered area steel frame 1 and the main load-bearing frame 2 are installed in the middle of the basement. The non-cantilevered area steel frame 1 is the first installation component, and the main load-bearing frame 2 is the subsequent installation component. The force transmission route during the installation of the cantilevered steel structure is smooth, and the construction load is transmitted from the main load-bearing frame 2 to the non-cantilevered structure. The first installation component bears the deadweight and construction load of the subsequent installation components to form a good force system, thereby improving the hoisting stability of the entire cantilevered steel structure.

[0027] Specifically, first, a plurality of fixing plates 41 are installed on one side of the steel frame 1 in the non-cantilevered area, and limiting brackets 44 are installed on both sides of the cantilevered steel beam 21 and the roof layer cantilevered beam 23. By aligning and connecting the limiting brackets 44 with the fixing plates 41, the bottom of the fixing plates 41 is fitted with the bottom of the cantilevered steel beam 21 and the roof layer cantilevered beam 23. During the sliding process, the guide bracket 46 squeezes and contracts the limiting block 43 on one side, and the squeezing of the limiting block 43 causes the spring 42 to contract on the side wall of the fixing plate 41 and generate elastic potential energy. When the limiting bracket 44 is aligned with the fixing plate 41, the bottom of the fixing plate 41 is fitted with the bottom of the cantilevered steel beam 21 and the roof layer cantilevered beam 23. When the position of the limiting groove 45 of 4 reaches the limiting block 43, the squeezing force of the guide bracket 46 on the limiting block 43 disappears, so that the limiting block 43 moves toward the limiting groove 45 of the limiting bracket 44 through the spring 42, so that it fits to the upper and lower ends of the limiting groove 45, thereby achieving a pre-fixed effect on one side of the non-cantilevered area steel frame 1 and the cantilevered steel beam 21 and the roof layer cantilevered beam 23, so that the non-cantilevered area steel frame 1 and the cantilevered steel beam 21 and the roof layer cantilevered beam 23 can be accurately docked without support, which is convenient for subsequent fixing work.

[0028] The non-cantilevered area steel frame 1 includes a cantilevered mounting beam 11, a cantilevered fixed beam 12, a fixed column 13, a cantilevered connecting beam 14 and a reinforcement component. Specifically, there are two cantilevered mounting beams 11 and two cantilevered fixed beams 12. The two cantilevered mounting beams 11 are arranged in parallel, and the two cantilevered fixed beams 12 are arranged in parallel, so that the two cantilevered fixed beams 12 are arranged above the two cantilevered mounting beams 11. In addition, the cantilevered mounting beams 11 and the cantilevered fixed beams 12 are arranged in one-to-one correspondence. The number of the fixed columns 13 is determined according to the actual situation. The column 13 is fixed between the cantilever mounting beam 11 and the cantilever fixed beam 12 by means of bolt connection. The corners where the cantilever mounting beam 11 and the cantilever fixed beam 12 are assembled are reinforced by full welding. The cantilever connecting beam 14 is welded between the two cantilever mounting beams 11 or the two cantilever fixed beams 12, respectively, which is beneficial to enhancing the structural stability of the steel frame 1 in the non-cantilever area, so that the assembled cantilever mounting beam 11, cantilever fixed beam 12, cantilever connecting beam 14 and fixed column 13 present a rectangular box beam structure.

[0029] The reinforcement assembly includes a steel column 15 and a reinforcement diagonal rod 16 . Stirrups 17 are provided on the steel column 15 . The steel column 15 and the cantilevered connecting beam 14 are fixed by the stirrups 17 , so that the steel column 15 and the fixed column 13 are arranged parallel to each other.

[0030] Two reinforcing diagonal rods 16 are arranged between two adjacent fixed columns 13. The reinforcing diagonal rods 16 are arranged at an angle. One end of the reinforcing diagonal rod 16 is welded to the corner of the fixed column 13 and the cantilever mounting beam 11, and the other end is welded to the bottom wall of the cantilever fixed beam 12, so that the two assembled reinforcing diagonal rods 16 and the cantilever mounting beam 11 present a triangular structure, which further enhances the stability of the steel frame 1 in the non-cantilever area.

[0031] The main load-bearing frame 2 is distributed on one side of the steel frame 1 in the non-cantilevered area where the steel frame 1 is provided with a steel frame column 15. The main load-bearing frame 2 includes a cantilevered steel beam 21, a beam column 22, a roof layer cantilevered beam 23, and a cross beam 24 between cantilevered beams. There are two cantilevered steel beams 21. The two cantilevered steel beams 21 are arranged in parallel on one side of the cantilevered mounting beam 11 of the steel frame 1 in the non-cantilevered area, so that the cantilevered steel beam 21 and the cantilevered mounting beam 11 are on the same extension line. A beam column 22 is installed on the top surface of the cantilevered steel beam 21. The beam column 22 is at the same height and parallel to the fixed column 13. The number of the beam columns 22 is determined according to actual conditions, and a steel beam flange is formed between the beam column 22 and the cantilevered steel beam 21.

[0032] A roof layer cantilever beam 23 is installed on the top surface of the beam column 22. The roof layer cantilever beam 23 is distributed parallel to the cantilever steel beam 21. The roof layer cantilever beam 23 is set at the same height as the cantilever fixed beam 12 of the non-cantilever area steel frame 1, which is beneficial for the construction load of the main load-bearing frame 2 to be better transmitted to the non-cantilever area steel frame 1, so that the entire cantilever steel structure can be evenly stressed.

[0033] A cantilever beam cross beam 24 is installed between the two roof layer cantilever beams 23 or between the two cantilever steel beams 21, and a tie rod 25 is provided between the non-cantilever area steel frame 1 and the adjacent beam upper column 22. The tie rod 25 is arranged at an angle, and mounting bolts 26 are provided between one end of the tie rod 25 and the steel frame column 15 and between the other end of the tie rod 25 and the steel beam flange. That is, one end of the tie rod 25 is assembled with the steel frame column 15 through the mounting bolts 26, and the other end of the tie rod 25 is assembled with the steel beam flange through the mounting bolts 26. After the tie rod 25 is assembled, the staff spot welds and reinforces the two ends of the tie rod 25 to ensure the structural stability of the main load-bearing frame 2.

[0034] High-strength bolts 27 are provided at the intersection between the bottom end of the beam column 22 and the cantilever steel beam 21, and at the intersection between the top end of the beam column 22 and the roof layer cantilever beam 23. That is, the beam column 22 is fixed to the cantilever steel beam 21 and the roof layer cantilever beam 23 by high-strength bolts 27, so that the main load-bearing frame 2 is not easy to shake left and right.

[0035] In order to further improve the structural stability of the main load-bearing frame 2, a number of columns 31 are arranged between the two cantilever beams and the cross beams 24. The columns 31 are arranged in parallel, and a diagonal rod 32 is provided between two adjacent columns 31. The diagonal rod 32 is fixed obliquely at the diagonal of the two adjacent columns 31, so that the main load-bearing frame 2 has sufficient structural strength.

[0036] The working principle provided by the present invention is as follows: when the present invention is implemented, the staff first assembles the cantilever mounting beam 11 and the cantilever fixed beam 12 together through the fixed column 13, and welds the cantilever connecting beam 14 to the position between the two cantilever mounting beams 11 or the two cantilever fixed beams 12, so that the assembled cantilever mounting beam 11, cantilever fixed beam 12, cantilever connecting beam 14 and fixed column 13 present a rectangular box beam structure.

[0037] Then, the steel column 15 is fixed to the cantilever connecting beam 14 by means of stirrups 17, and the reinforcing diagonal rod 3216 is welded obliquely between the cantilever mounting beam 11 and the cantilever fixed beam 12, thereby completing the installation of the non-cantilever area steel frame 1, by installing multiple fixing plates 41 on one side of the non-cantilever area steel frame 1, installing limit brackets 44 on both sides of the cantilever steel beam 21 and the roof layer cantilever beam 23, and by aligning the limit brackets 44 with the fixing plates 41, the bottom inner side of the fixing plate 41 is fitted with the bottom of the cantilever steel beam 21 and the roof layer cantilever beam 23, and during its sliding process, the guide bracket 46 squeezes and contracts the limit block 43 on one side, and the squeezing of the limit block 43 causes the spring 42 to contract on the side wall of the fixing plate 41 and generate elastic potential energy. When the limit slot 45 of the positioning bracket 44 reaches the limit block 43, the squeezing force of the guide bracket 46 on the limit block 43 disappears, and the limit block 43 is moved toward the limit slot 45 of the limiting bracket 44 through the spring 42, so that it fits to the upper and lower ends of the limit slot 45, so that one side of the non-cantilever area steel frame 1 and the cantilever steel beam 21 and the roof layer cantilever beam 23 can be pre-fixed, so that the non-cantilever area steel frame 1 and the cantilever steel beam 21 and the roof layer cantilever beam 23 can be accurately docked without support, which is convenient for subsequent fixing work, and then the cantilever beam cross beam 24 is installed between the two roof layer cantilever beams 23, or between the two cantilever steel beams 21, and the pull rod 25 is installed obliquely between the steel column 15 and the steel beam flange.

[0038] Finally, several columns 31 are installed between the two cantilever beams 24 , and the diagonal rods 32 are fixed obliquely at the diagonal lines of two adjacent columns 31 , thereby completing the installation of the main load-bearing frame 2 .

[0039] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0040] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. The large cantilever steel structure is supported and installed without a tire frame, which is characterized by: The invention comprises a non-cantilevered area steel frame (1) and two cantilevered steel beams (21), wherein the two cantilevered steel beams (21) are arranged in parallel on one side of the non-cantilevered area steel frame (1), a beam upper column (22) is installed on the top surface of the cantilevered steel beam (21), a roof layer cantilevered beam (23) is installed on the top surface of the beam upper column (22), a cantilevered beam inter-beam cross beam (24) is installed between the two roof layer cantilevered beams (23) and between the two cantilevered steel beams (21), and a plurality of connecting components (4) are arranged between the roof layer cantilevered beam (23) and the non-cantilevered area steel frame (1); The connecting assembly (4) includes a fixing plate (41) installed on the non-cantilevered area steel frame (1) and a limiting bracket (44) installed on both sides of the cantilevered steel beam (21) and the roof layer cantilevered beam (23), wherein the two ends of the inner wall of the fixing plate (41) are respectively opposite and sequentially provided with springs (42) and limiting blocks (43), and the limiting blocks (43) extend out of the outer wall of the fixing plate (41), and a limiting groove (45) matching the size of the limiting block (43) is provided on the limiting bracket (44), and a guide bracket (46) matching the fixing groove provided on the fixing plate (41) is installed on the side of the limiting bracket (44) adjacent to the limiting block (43).

2. The tireless frame combined support installation super-large cantilever steel structure according to claim 1 is characterized in that: A tie rod (25) is provided between the non-cantilevered area steel frame (1) and the adjacent beam upper column (22), and the tie rod (25) is arranged at an angle.

3. The tireless frame combined support installation super-large cantilever steel structure according to claim 2 is characterized in that: The non-cantilevered area steel frame (1) includes a steel frame column (15), which is arranged on one side close to the cantilevered steel beam (21) and the roof layer cantilevered beam (23), and a steel beam flange is formed between the beam upper column (22) and the cantilevered steel beam (21), and mounting bolts (26) are arranged between one end of the tie rod (25) and the steel frame column (15) and between the other end of the tie rod (25) and the steel beam flange.

4. The tireless frame combined support installation super-large cantilever steel structure according to claim 3 is characterized in that: High-strength bolts (27) are provided at the intersection between the bottom end of the beam upper column (22) and the cantilever steel beam (21), and at the intersection between the top end of the beam upper column (22) and the cantilever beam (23) of the roof layer.

5. The tireless frame combined support installation super-large cantilever steel structure according to claim 4 is characterized in that: The non-cantilevered area steel frame (1) includes a cantilevered connecting beam (14), and stirrups (17) are provided on the steel column (15). The steel column (15) and the cantilevered connecting beam (14) are fixed via the stirrups (17).

6. The tireless frame combined support installation of the super-large cantilever steel structure according to claim 5 is characterized in that: A plurality of columns (31) are provided between the two cantilever beams (24), the columns (31) are arranged in parallel, an oblique rod (32) is provided between two adjacent columns (31), and the oblique rod (32) is obliquely fixed at the diagonal of the two adjacent columns (31).

7. The tireless frame combined support installation super-large cantilever steel structure according to claim 6 is characterized in that: The cantilever steel beams (21), beam columns (22), roof layer cantilever beams (23), and cantilever beam inter-beam cross beams (24) are assembled to form a main load-bearing frame (2), and a concrete layer is poured outside the main load-bearing frame (2) and the non-cantilevered area steel frame (1).

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