High-altitude large-span cantilever combined type supporting system

Abstract

The invention provides a high-altitude large-span overhanging combined type supporting system, relates to a high-altitude large-span overhanging concrete structure construction technology, and particularly discloses a plurality of supporting mechanisms arranged in a floor in a surrounding mode. Each supporting mechanism comprises a supporting seat, an assembling opening is formed in the floor, and the supporting seats are installed in the assembling openings. One side of the supporting seat is provided with a connecting beam, the connecting beam is fixed in a floor, the other side of the supporting seat is provided with a cantilever beam, and the cantilever beam partially extends out of the floor and then extends outwards; a limiting beam is installed on the supporting seat, the limiting beam penetrates through the supporting seat and a floor and then is detachably connected with a building body, a supporting structure used for supporting the extending end of the cantilever beam is installed on the side wall of the limiting beam, a limiting mechanism used for preventing the supporting seat from moving upwards is installed on the limiting beam, and the supporting structure transmits cantilever loads to a lower-layer building body. The stress of the installation floor is dispersed; the supporting seat is rigidly fixed to the floor through the connecting beam and the anchoring point design of the limiting beam, so that the cantilever beam is prevented from floating or deflecting.

Description

Technical Field

[0001] The present invention relates to the technical field of high-altitude large-span cantilever concrete structure construction, and in particular to a high-altitude large-span cantilever combined support system. Background Art

[0002] With the continuous innovation of structural design in the construction industry, some large-span, long-cantilever concrete structures have appeared in engineering construction. When constructing large-span, long-cantilever, and heavy-load concrete cantilever structures at high altitudes, the choice of support system is extremely important.

[0003] Currently, cantilever I-beam support systems and flower basket cantilever support systems are commonly used. The cantilever I-beam support system has long cantilever anchors and large sizes. This requires unloading, resulting in high-altitude support frame erection and construction difficulties. On-site high-altitude assembly is also difficult. Flower basket cantilever support systems have large I-beams and require lower support rods and wire ropes for unloading, which is computationally complex and requires on-site high-altitude assembly, making construction difficult. Summary of the Invention

[0004] The purpose of the present invention is to provide a high-altitude, large-span cantilevered combined support system, which can solve the problems raised by the above-mentioned background technology in view of the shortcomings of the existing technology.

[0005] The technical solution of the present invention is achieved as follows:

[0006] The invention provides a high-altitude large-span cantilever combined support system.

[0007] It includes a plurality of supporting mechanisms arranged around the floor;

[0008] The supporting mechanism includes a supporting seat, an assembly opening is opened in the floor, and the supporting seat is installed in the assembly opening;

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

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

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

[0012] In some technical solutions of the present invention, the locking mechanism includes a locking block installed in a supporting 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 tooth blocks are installed on the side wall opposite to the limiting beam of the first limiting block, and a matching block engaged with the plurality of tooth blocks is installed on the outer wall of the limiting beam.

[0013] In some technical solutions of the present invention, the limiting mechanism includes a mounting opening opened in the supporting seat, the limiting beam is installed in the mounting opening, a first rack is passed through the mounting opening, a gear structure is rotatably provided in the supporting seat, the gear structure is engaged with the first rack, a limiting plate is installed on the first rack, a limiting groove is opened on the side wall of the supporting seat, a part of the limiting plate is embedded in the limiting groove, a locking protrusion is installed on the free end of the limiting plate, and a part of the locking protrusion passes through the limiting groove and is embedded in the floor.

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

[0015] Some technical solutions of the present invention further include a ratchet structure, which is installed on the shaft of the locking gear. A limiting tooth is installed on the inner side wall of the displacement seat, and a part of the limiting tooth is 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 floor body, and a pull plate perpendicular to the positioning plate is installed on the positioning plate, and 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, a hydraulic push rod is installed on the cantilever beam, and a telescopic end of the hydraulic push rod is connected to the telescopic beam.

[0018] In some technical solutions of the present invention, a mounting seat is further included which is installed at the end of the supporting structure, a clamping seat is installed in the mounting seat, and the clamping seat is embedded in the cantilever beam.

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

[0020] Compared with the prior art, the present invention has at least the following advantages or beneficial effects: multiple support mechanisms form a grid-like layout around the floor, which evenly distributes the concentrated load of the cantilever beam to the entire floor, avoids single-point stress concentration, and reduces the risk of floor cracking or deformation; the cantilever beam, limit beam and support structure form a stable triangular structure, which greatly improves the bending and shearing resistance, reduces the bending moment effect of the cantilever end, and enhances the overall bearing performance; the support structure transfers the cantilever load to the lower floor, disperses the force of the installation floor, avoids local overload, and improves the coordinated bearing capacity of multiple floors; the support seat is rigidly fixed to the floor through the connecting beam , combined with the anchor point design of the limit beam to prevent the cantilever beam from floating or swinging, the locking mechanism (tooth block engagement, ratchet structure) increases the contact surface friction to resist horizontal loads; the limit plate is embedded in the floor to further fix the support seat; the double beam body is adjusted in length through the threaded sleeve to adapt to different span requirements, and the locking block is used for friction locking to enhance the connection reliability between the limit beam and the support seat; the telescopic beam is combined with the hydraulic push rod to realize dynamic adjustment of the cantilever end length to adapt to complex construction requirements; the displacement seat slides along the limit beam, and through the locking gear and rack, the position of the supporting structure is quickly adjusted to adapt to the deformation or load changes of the cantilever beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

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

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

[0024] Figure 4 Schematic diagram of the internal structure of the support seat in the present invention.

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

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

[0027] Figure 7 It is a schematic diagram of the side view of the combined structure of the clamping seat and the mounting seat in the present invention.

[0028] 1. Floor; 2. Support seat; 3. Cantilever beam; 4. Connecting beam; 5. Pull plate; 6. Positioning plate; 7. Support structure; 8. Displacement seat; 9. Fixed seat; 10. Limiting beam; 11. Push rod structure; 12. Auxiliary supporting structure; 13. Clamping 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. Gear block; 32. Matching block; 33. Second rack. DETAILED DESCRIPTION

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only 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 herein can be arranged and designed in various different configurations.

[0030] 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 as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0031] Example

[0032] The present invention provides a high altitude large span cantilever combined support system, such as Figures 1-6 As shown, the present technology mainly solves the problem in the prior art that the installation of the cantilever beam 3 structure causes great damage to the structural integrity of the floor level. The load attached to the cantilever beam 3 is mainly concentrated on the floor 1 where the cantilever beam 3 is installed, which often causes the stress of the floor 1 to be more concentrated, affecting the overall strength of the floor structure. In order to solve the damage of the cantilever beam 3 structure against the floor installation surface, the present structure surrounds and arranges a number of supporting mechanisms in the floor 1, and the spacing between any two adjacent supporting structures 7 is equal; at this time, the several supporting mechanisms form a grid-like supporting network in the floor 1, which can evenly distribute the gravity applied to the cantilever beam 3, avoiding the pressure from being concentrated at one point, causing the cantilever beam 3 structure at a certain position to bear too much gravity, resulting in the risk of stress fatigue or fracture or downward movement or deflection, causing quality problems in the size and construction of the constructed cantilever structure.

[0033] The supporting mechanism includes a supporting seat 2, which is a rectangular structure and is welded from steel. A rectangular assembly opening is prefabricated in the floor 1, and the supporting seat 2 is installed in the assembly opening; and the outer wall of the supporting seat 2 and the inner wall of the assembly opening fit together, which can increase the friction between the two.

[0034] A connecting beam 4 is mounted on one side of the support base 2. Partially recessed within a first rectangular notch in the sidewall of the support base 2, the sidewall of the connecting beam 4 is provided with tabs bolted to the outer sidewall of the support base 2. The connecting beam 4 is bolted to the floor 1 to prevent the support base 2 from floating or shifting under the influence of the cantilever beam 3. A cantilever beam 3 is mounted on the side of the support base 2 facing away from the connecting beam 4. Partially recessed within a second rectangular notch in the sidewall of the support base 2, the sidewall of the cantilever beam 3 is provided with tabs bolted to the outer sidewall of the support base 2. The majority of the cantilever beam 3 extends outward beyond the floor 1. After such arrangement, the support seat 2 is rigidly connected to the main body of the floor 1 through the connecting beam 4, and a cantilever beam 3 is installed on the other side of the support seat 2. The cantilever beam 3 partially extends out of the floor 1 to form an overhanging structure, which is used to form an outer support structure 7, and the length of the cantilever beam 3 can be adjusted according to the size of the cantilever structure, which can adapt to different cantilever requirements.

[0035] 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 for installing the support seat 2. The limiting beam 10 is perpendicular to the support seat 2. The limiting beam 10 is fixedly connected to the main body of the building through a detachable connection. The limiting beam 10 forms a pull-out anchor point on the floor main body, thereby improving the connection strength between the support seat 2 and the floor main body. A supporting structure 7 for supporting the extended end of the cantilever beam 3 is installed on the side wall of the limiting beam 10. The free end of the supporting structure 7 is connected to the extended end of the cantilever beam 3, and the cantilever load borne by the cantilever beam 3 can be transferred to the main body of the lower floor, dispersing the bearing force of the floor for installing the cantilever beam 3. The triangular structure formed by the cantilever beam 3, the limiting beam 10 and the supporting structure 7 can improve the overall bearing capacity of the structure and the structural strength when supporting the cantilever beam 3. A limiting mechanism for preventing the support seat 2 from moving upward is installed on the limiting beam 10. 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 using the limiting beam 10 to prevent the cantilever beam 3 from swinging when bearing lateral or vertical loads.

[0036] In some technical solutions of the present invention, the limiting beam 10 includes two beam bodies 25 arranged in pairs. A fixing seat 9 is installed within the main building body and fixed to the floor below the floor level where the cantilever beam is installed via at least four high-strength bolts. One beam body 25 is detachably connected to the fixing seat 9, namely, the beam body 25 is slidably mounted within a guide groove 19 provided in the fixing seat 9 via a limiting seat 20, and the beam body 25 and the limiting seat 20 are connected by welding or bolts. The other beam body 25 is installed within a support seat 2; a locking mechanism for locking the beam body 25 is provided within the support seat 2. One beam body 25 has an internally threaded sleeve 28 rotatably mounted on the side wall, and the other beam body 25 has a connecting rod 29 threadedly connected to the internally threaded sleeve 28. The paired beam bodies 25 can be quickly assembled using the threaded sleeve and connecting rod 29, and the threaded sleeve and connecting rod 29 can be used to adjust the actual length of the two beam bodies 25 to accommodate different span requirements.

[0037] In some technical solutions of the present invention, the locking mechanism includes a locking block 15 mounted within the support seat. The locking block 15 has a first curved surface on the side opposite the limiting beam 10. A first limiting block is slidably mounted on the first curved surface. A plurality of tooth blocks 31 are mounted on the side wall opposite the limiting beam 10. A mating block 32 is mounted on the outer wall of the limiting beam 10 to engage with the tooth blocks 31. When the internally threaded sleeve 28 on the connecting rod 29 gradually approaches the fixed seat 9, the beam body 25 disposed within the support seat 2 will move toward the fixed seat 9 under the pull of the internally threaded sleeve 28. At this time, the mating block 32 will pull the first limiting block engaged therewith downwardly on the first curved surface, thereby pulling the locking block 15 to rotate within the assembly opening. At this time, the beam body 25 gradually applies a downward tension to the locking block 15, and the first curved surface of the locking block 15 gradually approaches the outer wall of the beam body 25, thereby locking the limiting beam 10 within the support seat 2 by utilizing the friction between the two.

[0038] In some technical solutions of the present invention, the limiting mechanism includes an installation opening defined in the support base 2, the limiting beam 10 is installed in the installation opening, a first rack 26 is passed through the installation opening, a gear structure 27 is rotatably provided in the support base 2, the gear structure 27 meshes with the first rack 26, a limiting plate is mounted on the first rack 26, a limiting groove 24 is defined on the side wall of the support base 2, a portion of the limiting plate is embedded in the limiting groove 24, a locking protrusion 23 is installed on the free end of the limiting plate, a portion of the locking protrusion 23 passes through the limiting groove 24 and is embedded in the floor 1. This is used to lock the support base 2 in the floor 1 and improve the stability of the support base 2 during installation.

[0039] In some technical solutions of the present invention, a displacement seat 8 is slidingly provided on the limiting beam 10, a locking gear 21 is rotatably provided inside the displacement seat 8, a second rack 33 meshing with the locking gear 21 is installed on the outer wall of the limiting beam 10, and 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. 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 off, a locking hole is opened on the outer wall of the displacement seat 8, and a locking rod 22 is passed through the locking hole. A limiting hole adapted to the locking rod 22 is opened on the outer wall of the limiting beam 10. The above structure can prevent the displacement seat 8 from suddenly slipping off.

[0040] In some technical solutions of the present invention, the limiting mechanism includes a ratchet structure mounted on the shaft of the locking gear 21. The displacement seat is equipped with limiting teeth, which are partially embedded in the ratchet teeth of the ratchet structure. The locking block 15 engages with the tooth block 31 of the limiting beam 10, increasing the contact friction and resisting horizontal loads. The limiting beam 10 is anchored to the main building structure, and the ratchet lock prevents the cantilever end from overturning. The ratchet structure is not shown in the figure.

[0041] In some technical solutions of the present invention, a positioning plate 6 is mounted on the main body of the floor 1, and a pull plate 5 is mounted perpendicular thereto. The pull plate 5 is detachably connected to the connecting beam 4. The pull plate 5 and the positioning plate 6 are welded to form a vertical connection, which enhances torsional resistance, facilitates disassembly and turnover, and improves the flexibility of the structure during construction.

[0042] In some technical solutions of the present 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 spacing between the guide plates 17 being the width of the cantilever beam 3. Each guide plate 17 is embedded within the cantilever beam 3. A hydraulic push rod 16 is mounted on the cantilever beam 3, with the telescopic end of the hydraulic push rod 16 connected to the telescopic beam 18. The actual telescopic end of the hydraulic push rod 16 is also connected to the guide plates 17. The hydraulic push rod 16 drives the telescopic beam 18 to adjust the cantilever length, allowing the secondary support structure 12 to adapt to complex load variations. The support structure 7 and the secondary support structure 12 are connected to the cantilever beam 3 via a retaining bracket 13, forming an oblique support that reduces bending moments at the cantilever end.

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

[0044] In some technical solutions of the present invention, a secondary support structure 12 connected to a telescopic beam 18 is provided on the support structure 7. The secondary support structure 12 includes a push rod structure 11 and a support rod. The support rod is a telescopic rod structure, which is rotatably connected to the support structure 7 via a pin. One side of the push rod structure 11 is hinged to the support structure 7, and the other side of the push rod structure 11 is hinged to the support rod. In this way, the cantilever beam 3, the support structure 7, and the secondary support structure 12 are synergistically stressed, reducing steel consumption. The telescopic beam 18 can adjust its length 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. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A high-altitude, large-span cantilevered combined support system, characterized in that: It comprises a plurality of supporting mechanisms arranged around the floor (1); The supporting mechanism comprises a support seat (2), an assembly opening is provided in the floor (1), and the support seat (2) is installed in the assembly opening; A connecting beam (4) is installed on one side of the support seat (2), and the connecting beam (4) is fixed in the floor (1). A cantilever beam (3) is installed on the other side of the support seat (2), and a portion of the cantilever beam (3) extends outward after extending from the floor (1); A limiting beam (10) is installed on the support seat (2), and the limiting beam (10) is detachably connected to the building body after passing through the support seat (2) and the floor (1). A supporting structure (7) for supporting the extended end of the cantilever beam (3) is installed on the side wall of the limiting beam (10), and a limiting mechanism for preventing the support seat (2) from moving upward is installed on the limiting beam (10).

2. A high-altitude, large-span cantilevered combined support system according to claim 1, characterized in that: The limiting beam (10) comprises two beam bodies (25) arranged in pairs, a fixing seat (9) is installed in the main body of the building, one of the beam bodies (25) is detachably connected to the fixing seat (9), and the other beam body (25) is installed in the supporting seat (2); a locking mechanism for locking the beam body (25) is provided in the supporting seat (2), an internal threaded sleeve (28) is installed on the side wall of one of the beam bodies (25), and a connecting rod (29) threadedly connected to the internal threaded sleeve (28) is provided in the other beam body (25).

3. A high-altitude, large-span cantilevered combined support system according to claim 2, characterized in that: The locking mechanism comprises a locking block (15) installed in the support seat (2), 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 tooth blocks (31) are installed on the side wall of the first limiting block opposite to the limiting beam (10), and a matching block (32) engaged with the plurality of tooth blocks (31) is installed on the outer side wall of the limiting beam (10).

4. A high altitude large span cantilever combined support system according to claim 2 or 3, characterized in that: The limiting mechanism includes a mounting opening provided in the support seat (2), the limiting beam (10) is installed in the mounting opening, a first rack (26) is passed through the mounting opening, a gear structure (27) is rotatably provided in the support seat (2), the gear structure (27) is engaged with the first rack (26), a limiting plate is installed on the first rack (26), a limiting groove (19) is provided on the side wall of the support seat (2), a part 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 part of the locking protrusion (23) passes through the limiting groove (19) and is embedded in the floor (1).

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

6. The high-altitude, large-span cantilevered combined support system according to claim 5, characterized in that: It also includes a ratchet structure, which is mounted on the shaft of the locking gear (21). A limiting tooth is mounted on the inner side wall of the displacement seat (8), and a portion of the limiting tooth is embedded in the ratchet teeth of the ratchet structure.

7. The high-altitude, large-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), a pull plate (5) perpendicular to the positioning plate (6) is installed on the positioning plate (6), and the pull plate (5) is detachably connected to the connecting beam (4).

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

9. The high-altitude, large-span cantilevered combined support system according to claim 8, characterized in that: It also includes a mounting seat (14) mounted on the end of the supporting structure (7), a clamping seat (13) is mounted in the mounting seat (14), and the clamping seat (13) is embedded in the cantilever beam (3).

10. The high-altitude, large-span cantilevered combined support system according to claim 8, characterized in that: The supporting structure (7) is provided with a secondary supporting structure (12) connected to the telescopic beam (18).

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