High-altitude large-span cantilever combined support system

Abstract

This invention proposes a high-altitude, large-span cantilever composite support system, relating to the construction technology of high-altitude large-span cantilever concrete structures. Specifically, it discloses several support mechanisms arranged around the floor. Each support mechanism includes a support base, with an assembly opening in the floor where the support base is installed. A connecting beam is installed on one side of the support base and fixed to the floor. A cantilever beam is installed on the other side of the support base, with a portion of the cantilever beam extending outward beyond the floor. A limiting beam is installed on the support base, penetrating the support base and the floor and detachably connected to the main building structure. A support structure for supporting the extended end of the cantilever beam is installed on the side wall of the limiting beam, and a limiting mechanism for preventing the support base from moving upward is installed on the limiting beam. The support structure transfers the cantilever load to the lower floor, distributing the stress on the installed floor. The support base is rigidly fixed to the floor by the connecting beam and the anchoring point design of the limiting beam to prevent the cantilever beam from floating or swaying.

Description

Technical Field

[0001] This invention relates to the field of construction technology for high-altitude large-span cantilever concrete structures, and more specifically, to a high-altitude large-span cantilever composite support system. Background Technology

[0002] With continuous innovation in structural design in the construction industry, large-span, long-cantilever concrete structures have emerged in engineering construction. The selection of the support system is extremely important for constructing large-span, long-cantilever, and heavily loaded concrete cantilever structures at high altitudes.

[0003] Currently, the commonly used support systems are cantilevered I-beam support systems and basket-type cantilever scaffold support systems. The cantilevered I-beam support system uses long cantilevered and anchored I-beams with large dimensions, requiring unloading, resulting in a high erection height and significant construction difficulty, necessitating on-site high-altitude assembly. The basket-type cantilever scaffold support system uses large I-beams, requiring unloading of lower support members and wire ropes, and involves complex calculations, also requiring on-site high-altitude assembly, making construction difficult. Summary of the Invention

[0004] The purpose of this invention is to provide a high-altitude, long-span cantilevered combined support system that addresses the shortcomings of existing technologies and solves the problems mentioned in the background.

[0005] The technical solution of this invention is implemented as follows:

[0006] The invention provides a high-altitude, long-span cantilevered combined support system.

[0007] This includes several supporting structures arranged around the floor.

[0008] The support structure includes a support base, and an assembly opening is provided in the floor, into which the support base is installed;

[0009] A connecting beam is installed on one side of the support base and is fixed in the floor. A cantilever beam is installed on the other side of the support base, and the cantilever beam extends outward after partially extending out of the floor.

[0010] A limiting beam is installed on the support base. The limiting beam passes through the support base and the floor and is detachably connected to the main building. A support structure for supporting the extension end of the cantilever beam is installed on the side wall of the limiting beam. A limiting mechanism for preventing the support base from moving upward is installed on the limiting beam.

[0011] In some technical solutions of the present invention, the limiting beam includes two beams arranged in pairs, a fixing seat is installed in the main body of the building, one beam is detachably connected to the fixing seat, and the other beam is installed in the support seat; the support seat is provided with a locking mechanism for locking the beam, an internal threaded sleeve is installed on the side wall of one beam, and a connecting rod that is threadedly connected to the internal threaded sleeve is opened in the other beam.

[0012] In some technical solutions of the present invention, the locking mechanism includes a locking block installed in the support seat, a first arc surface is provided on the side of the locking block opposite to the limiting beam, a first limiting block is slidably provided on the first arc surface, a plurality of toothed blocks are installed on the side wall of the first limiting block opposite to the limiting beam, and a mating block that meshes with the plurality of toothed blocks is installed on the outer side wall of the limiting beam.

[0013] In some technical solutions of the present invention, the limiting mechanism includes an installation port opened in the support seat, a limiting beam installed in the installation port, a first rack passing through the installation port, a gear structure rotatably provided in the support seat, the gear structure meshing with the first rack, a limiting plate installed on the first rack, a limiting groove opened on the side wall of the support seat, a portion of the limiting plate being embedded in the limiting groove, a locking protrusion installed on the free end of the limiting plate, and a portion of the locking protrusion passing through the limiting groove and embedded in the floor.

[0014] In some technical solutions of the present invention, a displacement seat is slidably provided on the limiting beam, a locking gear is rotatably provided inside the displacement seat, a second rack that meshes with the locking gear is installed on the outer side wall of the limiting beam, a support structure is installed on the displacement seat, and the free end of the support structure is connected to the cantilever beam.

[0015] In some technical solutions of the present invention, a ratchet structure is also included. The ratchet structure is mounted on the shaft of the locking gear, and a limiting tooth is installed on the inner side wall of the displacement seat. The limiting tooth is partially embedded in the ratchet tooth of the ratchet structure.

[0016] In some technical solutions of the present invention, a positioning plate is installed on the main floor structure, and a pull plate perpendicular to it is installed on the positioning plate. The pull plate is detachably connected to the connecting beam.

[0017] In some technical solutions of the present invention, a telescopic beam is slidably provided on the cantilever beam, and a hydraulic push rod is installed on the cantilever beam, with the telescopic end of the hydraulic push rod connected to the telescopic beam.

[0018] In some technical solutions of the present invention, a mounting base is also included at the end of the support structure, and a card holder is installed in the mounting base and embedded in the cantilever beam.

[0019] In some technical solutions of the present invention, the supporting structure is provided with a secondary supporting structure connected to the telescopic beam.

[0020] Compared with the prior art, the present invention has at least the following advantages or beneficial effects: multiple support structures form a grid-like layout around the floor, evenly distributing the concentrated load of the cantilever beam to the entire floor, avoiding stress concentration at single points, and reducing the risk of floor cracking or deformation; the cantilever beam, limiting beam, and support structure form a stable triangular structure, significantly improving bending and shear resistance, reducing the bending moment effect at the cantilever end, and enhancing the overall load-bearing capacity; the support structure transfers the cantilever load to the lower floor, distributing the force on the installation floor, avoiding local overload, and improving the collaborative load-bearing capacity of multiple floors; the support base is rigidly fixed to the floor through connecting beams. The design incorporates anchor points for the limiting beam to prevent the cantilever beam from floating or swaying. The locking mechanism (tooth block engagement and ratchet structure) increases the friction of the contact surface to resist horizontal loads. The limiting plate engages with the floor to further secure the support. The double beams adjust their length via threaded sleeves to accommodate different span requirements and are secured by friction with locking blocks, enhancing the reliability of the connection between the limiting beam and the support. The telescopic beam, in conjunction with a hydraulic push rod, enables dynamic adjustment of the cantilever end length to meet complex construction needs. The displacement seat slides along the limiting beam and, through the engagement of locking gears and racks, quickly adjusts the position of the support structure to adapt to cantilever beam deformation or load changes. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0022] Figure 2 This is a front view structural diagram of the present invention.

[0023] Figure 3 This is a schematic diagram of the front sectional structure of the present invention.

[0024] Figure 4 This is a schematic diagram of the internal structure of the support base in this invention.

[0025] Figure 5 This is a schematic diagram of the installation structure of the cantilever beam and the telescopic beam in this invention.

[0026] Figure 6 This is a schematic diagram of the combined structure of the locking block and the limiting beam in this invention.

[0027] Figure 7 This is a side view schematic diagram of the combined structure of the card holder and the mounting base in this invention.

[0028] Reference numerals: 1. Floor; 2. Support seat; 3. Cantilever beam; 4. Connecting beam; 5. Tie plate; 6. Positioning plate; 7. Support structure; 8. Displacement seat; 9. Fixed seat; 10. Limiting beam; 11. Push rod structure; 12. Secondary support structure; 13. Card seat; 14. Mounting seat; 15. Locking block; 16. Hydraulic push rod; 17. Guide plate; 18. Telescopic beam; 19. Guide groove; 20. Limiting seat; 21. Locking gear; 22. Locking rod; 23. Locking protrusion; 24. Limiting groove; 25. Beam body; 26. First rack; 27. Gear structure; 28. Internal threaded sleeve; 29. ​​Connecting rod; 31. Tooth block; 32. Mating block; 33. Second rack. Detailed Implementation

[0029] 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, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0031] Example

[0032] This invention provides a high-altitude, large-span cantilevered combined support system, such as... Figures 1-6 As shown, this technology mainly addresses the problem that in existing technologies, the installation of the cantilever beam 3 structure causes significant damage to the structural integrity of the floor. The load added to the cantilever beam 3 is mainly concentrated on the floor 1 where the cantilever beam 3 is installed, often resulting in stress concentration on the floor 1 and affecting the overall strength of the floor structure. To solve the problem of damage to the floor installation surface caused by the cantilever beam 3 structure, this structure arranges several support mechanisms around the floor 1, with equal spacing between any two adjacent support structures 7. At this time, the several support mechanisms form a grid-like support network within the floor 1, which can evenly distribute the gravity applied to the cantilever beam 3, avoiding pressure concentration at one point. This prevents the cantilever beam 3 structure at a certain location from bearing excessive gravity, leading to stress fatigue, fracture, downward movement, or deflection, and causing quality problems in the dimensions and construction of the constructed cantilever structure.

[0033] Each support mechanism includes a support seat 2, which is a rectangular structure welded from steel. A rectangular assembly opening is prefabricated in the floor 1, and the support seat 2 is installed in the assembly opening. Furthermore, the outer wall of the support seat 2 fits into the inner wall of the assembly opening, which can improve the friction between the two.

[0034] A connecting beam 4 is installed on one side of the support base 2. A portion of the connecting beam 4 is embedded in a first rectangular slot opened in the side wall of the support base 2. Lugs are provided on the side wall of the connecting beam 4, and these lugs are fixedly connected to the outer side wall of the support base 2 by bolts. The connecting beam 4 is fixed to the floor 1 by bolts to prevent the support base 2 from floating or shifting under the action of the cantilever beam 3. A cantilever beam 3 is installed on the side of the support base 2 opposite to the connecting beam 4. A portion of the cantilever beam 3 is embedded in a second rectangular slot opened in the side wall of the support base 2. Lugs are provided on the side wall of the cantilever beam 3, and these lugs are fixedly connected to the outer side wall of the support base 2 by bolts. Most of the cantilever beam 3 extends outward beyond the floor 1. With this setup, the support base 2 is rigidly connected to the main body of the floor 1 via the connecting beam 4. A cantilever beam 3 is installed on the other side of the support base 2. The cantilever beam 3 extends partially out of the floor 1 to form an outward cantilever structure, which is used to form the outer support structure 7. The length of the cantilever beam 3 can be adjusted according to the size of the cantilever structure to adapt to different cantilever requirements.

[0035] A limiting beam 10 is installed on the support base 2. The limiting beam 10 passes through the support base 2 and the floor 1 on which the support base 2 is installed, and is perpendicular to the support base 2. The limiting beam 10 is fixedly connected to the main building structure via a detachable connection, forming a pull-out anchor point with the main building structure, thereby improving the connection strength between the support base 2 and the main building structure. A support structure 7 is installed on the side wall of the limiting beam 10 to support the extension end of the cantilever beam 3. The free end of the support structure 7 is connected to the extension end of the cantilever beam 3, which can transfer the cantilever load carried by the cantilever beam 3 to the main building structure of the lower floor, dispersing the load-bearing capacity of the floor where the cantilever beam 3 is installed. Furthermore, the triangular structure formed by the cantilever beam 3, the limiting beam 10, and the support structure 7 can improve the overall load-bearing capacity of the structure and the structural strength when supporting the cantilever beam 3. A limiting mechanism is installed on the limiting beam 10 to prevent the support base 2 from moving upward. By adding a limiting mechanism to the limiting beam 10, the cantilever beam 3 connected to the support seat 2 can be fixed to the floor panel, preventing the cantilever beam 3 from swaying when subjected to lateral or vertical loads.

[0036] In some technical solutions of the present invention, the limiting beam 10 includes two beams 25 arranged in pairs. A fixing seat 9 is installed inside the main building body. The fixing seat 9 is fixed to the floor below the floor where the cantilever beam 3 is installed by at least four high-strength bolts. One beam 25 is detachably connected to the fixing seat 9, that is, the beam 25 is slidably disposed in the guide groove 19 opened on the fixing seat 9 through the limiting seat 20, and the beam 25 is connected to the limiting seat 20 by welding or bolting. The other beam 25 is installed in the support seat 2; the support seat 2 is provided with a locking mechanism for locking the beam 25. An internal threaded sleeve 28 is rotatably provided on the side wall of one beam 25, and a connecting rod 29 threadedly connected to the internal threaded sleeve 28 is opened in the other beam 25. The paired beams 25 can be quickly assembled by the threaded sleeve and the connecting rod 29, and the actual length of the two beams 25 can be adjusted by the cooperation of the threaded sleeve and the connecting rod 29 to adapt to different span requirements.

[0037] In some technical solutions of the present invention, the locking mechanism includes a locking block 15 installed in the support seat. A first arc surface is provided on the side of the locking block 15 opposite to the limiting beam 10. A first limiting block is slidably provided on the first arc surface. A plurality of toothed blocks 31 are installed on the side wall of the first limiting block opposite to the limiting beam 10. A mating block 32 that meshes with the toothed blocks 31 is installed on the outer side wall of the limiting beam 10. When the internal threaded sleeve 28 on the connecting rod 29 gradually approaches the fixed seat 9, the beam 25 placed in the support seat 2 will move closer to the fixed seat 9 under the pull of the internal threaded sleeve 28. At this time, the mating block 32 will pull the first limiting block that meshes with it to move downward on the first arc surface, thereby pulling the locking block 15 to rotate in the assembly port. At this time, the beam 25 gradually applies a downward pulling force to the locking block 15, and the first arc surface on the locking block 15 gradually moves closer to the outer side wall of the beam 25, thereby using the friction between the two to lock the limiting beam 10 in the support seat 2.

[0038] In some technical solutions of the present invention, the limiting mechanism includes an installation port opened in the support seat 2, a limiting beam 10 installed in the installation port, a first rack 26 passing through the installation port, a gear structure 27 rotatably installed in the support seat 2, the gear structure 27 meshing with the first rack 26, a limiting plate installed on the first rack 26, a limiting groove 24 opened on the side wall of the support seat 2, a portion of the limiting plate being embedded in the limiting groove 24, and a locking protrusion 23 installed on the free end of the limiting plate, a portion of the locking protrusion 23 passing through the limiting groove 24 and embedded in the floor 1. This is used to lock the support seat 2 in the floor 1, improving the stability of the support seat 2 during installation.

[0039] In some technical solutions of the present invention, a displacement seat 8 is slidably provided on the limiting beam 10, and a locking gear 21 is rotatably provided inside the displacement seat 8. A second rack 33 that meshes with the locking gear 21 is installed on the outer side wall of the limiting beam 10. A support structure 7 is installed on the displacement seat 8, and the free end of the support structure 7 is connected to the cantilever beam 3. The displacement seat 8 slides along the limiting beam 10, and the position of the support structure 7 is adjusted by the locking gear 21 and the second rack 33 to adapt to the deformation of the cantilever beam 3. In order to prevent the displacement seat 8 from suddenly slipping, a locking hole is provided on the outer side wall of the displacement seat 8, and a locking rod 22 passes through the locking hole. A limiting hole that matches the locking rod 22 is provided on the outer side wall of the limiting beam 10. The above structure can prevent the displacement seat 8 from suddenly slipping.

[0040] In some technical solutions of this invention, the limiting mechanism includes a ratchet structure, which is mounted on the shaft of the locking gear 21. Limiting teeth are installed on the displacement seat, and a portion of the limiting teeth is embedded within the ratchet teeth of the ratchet structure. The locking block 15 meshes with the toothed block 31 of the limiting beam 10, increasing the friction of the contact surface and resisting horizontal loads. The limiting beam 10 is anchored to the main building structure, and combined with the ratchet locking, prevents the cantilever end from overturning. The ratchet structure is not shown in the figures.

[0041] In some technical solutions of this invention, a positioning plate 6 is installed on the main body of the floor slab 1, and a tie plate 5 perpendicular to it is installed on the positioning plate 6. The tie plate 5 is detachably connected to the connecting beam 4. The tie plate 5 and the positioning plate 6 are vertically connected by welding, which enhances the torsional resistance and facilitates disassembly and turnover, improving the flexibility of the structure during construction.

[0042] In some technical solutions of this invention, a telescopic beam 18 is slidably mounted on the cantilever beam 3. Two guide plates 17 are integrally formed on the telescopic beam 18, with the distance between the guide plates 17 being the width of the cantilever beam 3. The guide plates 17 are embedded within the cantilever beam 3. A hydraulic push rod 16 is mounted on the cantilever beam 3, with its telescopic end connected to the telescopic beam 18. In practice, the telescopic end of the hydraulic push rod 16 is connected to the guide plate 17. The hydraulic push rod 16 drives the telescopic beam 18 to adjust the cantilever length, and the secondary support structure 12 adapts to complex load changes. The support structure 7 and the secondary support structure 12 are connected to the cantilever beam 3 via a mounting bracket 13, forming an oblique support and reducing the bending moment at the cantilever end.

[0043] In some technical solutions of the present invention, a mounting base 14 is also included, which is installed at the end of the support structure 7. A retaining seat 13 is rotatably mounted in the mounting base 14 via a pin. The retaining seat 13 is L-shaped and is embedded in the cantilever beam 3. A return spring is installed between the retaining seat 13 and the mounting base 14.

[0044] In some technical solutions of the present invention, the supporting structure 7 is provided with a secondary supporting structure 12 connected to the telescopic beam 18. The secondary supporting structure 12 includes a push rod structure 11 and a strut. The strut is a telescopic rod structure. The strut and the supporting structure 7 are rotatably connected by a pin. One side of the push rod structure 11 is hinged to the supporting structure 7, and the other side of the push rod structure 11 is hinged to the strut. In this way, the cantilever beam 3, the supporting structure 7, and the secondary supporting structure 12 work together to bear the force, reducing the amount of steel used. The length of the telescopic beam 18 can be adjusted as needed to avoid redundant design.

[0045] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A high-altitude, long-span cantilevered combined support system, characterized in that, Includes several supporting structures arranged around the floor (1); The support mechanism includes a support base (2), and an assembly opening is provided in the floor (1). The support base (2) is installed in the assembly opening. A connecting beam (4) is installed on one side of the support base (2), the connecting beam (4) is fixed in the floor (1), and a cantilever beam (3) is installed on the other side of the support base (2), the cantilever beam (3) extends outward from the floor (1) in part; A limiting beam (10) is installed on the support seat (2). The limiting beam (10) passes through the support seat (2) and the floor (1) and is detachably connected to the main body of the building. A supporting structure (7) for supporting the extension end of the cantilever beam (3) is installed on the side wall of the limiting beam (10). A limiting mechanism for preventing the support seat (2) from moving upward is installed on the limiting beam (10). The limiting beam (10) includes two beams (25) arranged in pairs. A fixing seat (9) is installed inside the main body of the building. One beam (25) is detachably connected to the fixing seat (9), and the other beam (25) is installed in the support seat (2). The support seat (2) is provided with a locking mechanism for locking the beam (25). An internal threaded sleeve (28) is installed on the side wall of one beam (25), and a connecting rod (29) threadedly connected to the internal threaded sleeve (28) is opened in the other beam (25). The locking mechanism includes a locking block (15) installed in the support seat (2). The locking block (15) has a first arc surface on the side opposite to the limiting beam (10). A first limiting block is slidably provided on the first arc surface. A plurality of toothed blocks (31) are installed on the side wall opposite to the limiting beam (10). A mating block (32) that meshes with the plurality of toothed blocks (31) is installed on the outer side wall of the limiting beam (10). The limiting mechanism includes an installation port opened in the support seat (2), the limiting beam (10) is installed in the installation port, a first rack (26) is inserted in the installation port, a gear structure (27) is rotatably provided in the support seat (2), the gear structure (27) meshes with the first rack (26), a limiting plate is installed on the first rack (26), a limiting groove (19) is opened on the side wall of the support seat (2), a portion of the limiting plate is embedded in the limiting groove (19), a locking protrusion (23) is installed on the free end of the limiting plate, and a portion of the locking protrusion (23) penetrates the limiting groove (19) and is embedded in the floor (1).

2. The high-altitude, long-span cantilevered combined support system according to claim 1, characterized in that, The limiting beam (10) is slidably provided with a displacement seat (8), and a locking gear (21) is rotatably provided inside the displacement seat (8). A second rack (33) that meshes with the locking gear (21) is installed on the outer side wall of the limiting beam (10). The support structure (7) is installed on the displacement seat (8), and the free end of the support structure (7) is connected to the cantilever beam.

3. The high-altitude, long-span cantilevered combined support system according to claim 2, characterized in that, It also includes a ratchet structure, which is mounted on the shaft of the locking gear (21), and a limiting tooth is installed on the inner side wall of the displacement seat (8), with a portion of the limiting tooth embedded in the ratchet tooth of the ratchet structure.

4. The high-altitude, long-span cantilevered combined support system according to claim 1, characterized in that, A positioning plate (6) is installed on the main body of the floor (1), and a pull plate (5) perpendicular to it is installed on the positioning plate (6). The pull plate (5) is detachably connected to the connecting beam (4).

5. The high-altitude, long-span cantilevered combined support system according to claim 1, characterized in that, A telescopic beam (18) is slidably provided on the cantilever beam (3), and a hydraulic push rod (16) is installed on the cantilever beam (3). The telescopic end of the hydraulic push rod (16) is connected to the telescopic beam (18).

6. The high-altitude, long-span cantilevered combined support system according to claim 5, characterized in that, It also includes a mounting base (14) installed at the end of the support structure (7), and a card holder (13) is installed in the mounting base (14), which is embedded in the cantilever beam (3).

7. A high-altitude, long-span cantilevered combined support system according to claim 5, characterized in that, The support structure (7) is provided with a secondary support structure (12) that is connected to the telescopic beam (18).

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