High-bearing-capacity super-strong suspended corner auxiliary supporting device for high-rise building

Abstract

The invention relates to the technical field of building construction, in particular to a high-bearing-capacity high-rise building super-strong suspended corner auxiliary supporting device which comprises a building external corner, a constraint protection assembly and a lateral lifting assembly. When the I-shaped cantilever steel is combined with a building external corner for cantilever supporting, the constraint protection assembly is arranged at the connecting position of the I-shaped cantilever steel and the building external corner, rotation loosening of the embedded connection assembly is limited, and the external environment is covered and protected; the long-term use stability after the corner supporting plate is connected with the building external corner is improved, more worry-saving and labor-saving effects are achieved when the H-shaped cantilever steel is subjected to turnover maintenance disassembling operation in the later period, in addition, the lateral lifting assembly can conduct auxiliary lifting supporting on the far end of the H-shaped cantilever steel, lateral supporting stress is stable, and the supporting effect is good. And the construction safety of the cantilever support is improved.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a high-load-bearing, high-rise building ultra-strong cantilever auxiliary support device. Background Technology

[0002] Cantilevered scaffolding is a type of scaffolding that is attached to the main structure of a building and transfers the load to the building structure through cantilevered components. It is often used in high-rise building construction or in scenarios where the main structure cannot be directly used to erect ground-based scaffolding. When providing rotational support for the external corner of a building, it is necessary to use steel sections for horizontal cantilever support and then build scaffolding on top of it.

[0003] Since the external corner of a building is a protruding corner on the wall, when constructing cantilever supports for these corners, it is common to use I-beams with L-shaped connectors to bolt and anchor them to the external corner of the building beam. Then, diagonal tie rods are installed above the I-beams away from the beam end. However, because the cantilever structure built at the external corner is located between the two sides of the building, it needs to withstand bidirectional shear and torque forces. A single beam needs to withstand a combination of tensile, compressive, and bending internal forces, and a single diagonal tie rod provides upward tension, resulting in a single stress. Therefore, it is necessary to ensure that the corner support is more stable. However, the existing connection method mainly uses a combination of high-strength bolts and pre-embedded connections. The stability effect depends in part on the connection stability of the high-strength bolts. However, after the existing high-strength bolts are connected to the nuts, the nuts are directly exposed, which causes inconvenience to the stability of the cantilever and subsequent turnover construction. Summary of the Invention

[0004] The purpose of this invention is to provide a high-load-bearing, high-strength cantilever auxiliary support device for high-rise buildings to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-load-bearing, high-strength cantilever auxiliary support device for high-rise buildings, comprising:

[0006] The building's external corner has an I-shaped cantilever steel on one side via a pre-embedded connecting assembly. The pre-embedded connecting assembly includes two pre-embedded sleeves and two high-strength bolts. Two pre-embedded sleeves are inserted into one side of each of the two high-strength bolts. A corner support plate is provided on one side of the I-shaped cantilever steel, and the two sides of the corner support plate are respectively attached to the two sides of the building's external corner.

[0007] The constraint protection component is located on the side of the corner support plate near the pre-embedded pipe sleeve. The constraint protection component includes a protective cover and a prismatic sleeve. A high-strength bolt passes through the corner support plate on the side away from the pre-embedded pipe sleeve and is inserted into the protective cover.

[0008] The lateral lifting assembly includes two auxiliary traction cables, with I-shaped cantilever steel and prismatic sleeves respectively inserted on both sides of each auxiliary traction cable.

[0009] Preferably, the two pre-embedded pipe sleeves are respectively pre-embedded on both sides of the external corner of the building. Each pre-embedded pipe sleeve is provided with a built-in high-strength threaded ring on one side. The two ends of the high-strength bolt are respectively provided with a first threaded head and a second threaded head. The first threaded head of the high-strength bolt is placed inside the pre-embedded pipe sleeve and is threadedly connected to the built-in high-strength threaded ring. The second threaded head of the high-strength bolt extends out of the pre-embedded pipe sleeve.

[0010] Preferably, the corner support plate has a through-hole for mounting, located at the center of one side of the protective cover. The second screw head of the high-strength bolt passes through the mounting slot and is placed inside the protective cover. A constraint sleeve is inserted into the mounting slot. A limiting pad is provided on one side of the constraint sleeve inside the protective cover. The cross-sectional area of ​​the limiting pad is larger than the cross-sectional size of the mounting slot, and the second screw head moves through the constraint sleeve and the limiting pad.

[0011] Preferably, one end of the second screw head that passes through the limiting pad is provided with a pull nut through a threaded sleeve, and a push pad is provided between the pull nut and the second screw head. The push pad is sleeved on the second screw head, and a constraint aluminum sleeve is provided on the side of the constraint sleeve that is sleeved on the second screw head and close to the pre-embedded pipe sleeve. One side of the constraint aluminum sleeve is in contact with the pre-embedded pipe sleeve, and the inner diameter of the pre-embedded pipe sleeve is smaller than the diameter of the constraint aluminum sleeve.

[0012] Preferably, the constraint sleeve box has several expansion guide grooves on the side of the limiting pad that is close to the constraint aluminum sleeve, and several deformation extrusion rods are symmetrically arranged on one side of the pushing pad. The several deformation extrusion rods move through the several expansion guide grooves and extrude the outer periphery of the constraint aluminum sleeve.

[0013] Preferably, a prismatic combination hole is vertically opened on one side of the protective cover, and a prismatic sleeve is vertically and movably inserted into the prismatic combination hole. The prismatic sleeve passes through the upper and lower ends of the protective cover and is respectively provided with a pointing support and an extension tube. The cross-sectional area of ​​the pointing support is larger than the cross-sectional area of ​​the prismatic sleeve. The extension tube passes through the lower end of the protective cover and is provided with an assembly nut by thread.

[0014] Preferably, one side of the prismatic sleeve inside the protective cover abuts against one end of the pull nut, and a sealing cap is provided at the end of the protective cover away from the pull nut.

[0015] Preferably, the lower ends of the two sides of the I-shaped cantilever steel away from the corner support plate are respectively connected to anti-detachment pins, one end of the two auxiliary traction cables is respectively connected to the two anti-detachment pins, the center of the prismatic sleeve is provided with a through groove pointing to the support and the extension tube, and one end of the auxiliary traction cable is inserted into the upper end of the through groove.

[0016] Preferably, the horizontal height of the pointing bracket is higher than the horizontal height of the anti-detachment pin. The upper end of the pointing bracket is provided with a guide wheel groove. An annular guide wheel is rotatably provided in the guide wheel groove via a rotation shaft. One side of the auxiliary traction cable is inserted through the through groove and overlaps the upper end of the annular guide wheel. The lower end of the extension tube is rotatably inserted with a tensioning sleeve. One end of the auxiliary traction cable located in the through groove is provided with a tensioning rod. The lower end of the tensioning rod is threaded through the tensioning sleeve, and the length of the tensioning rod is greater than the sum of the lengths of the pointing bracket, the prismatic sleeve, and the extension tube.

[0017] Preferably, the upper end of the I-shaped cantilever steel away from the corner support plate is provided with a connecting lug, and a force-bearing tie rod is rotatably provided on the connecting lug via a pin. The end of the force-bearing tie rod away from the I-shaped cantilever steel is provided with a turnbuckle via a threaded connection.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] In this design, when the I-shaped cantilever steel is combined with the external corner of the building for cantilever support, a constraint protection component is installed at the connection point to restrict the rotation and loosening of the pre-embedded connection component and to protect it from external environmental factors. This improves the long-term stability of the corner support plate after it is connected to the external corner of the building. It also makes the disassembly operation of the I-shaped cantilever steel for turnover maintenance easier and less labor-intensive. In addition, the lateral lifting component can provide auxiliary lifting support for the far end of the I-shaped cantilever steel and ensure the stability of the lateral support force, thereby improving the construction safety of the cantilever support. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 For the present invention Figure 1 Schematic diagram of part A;

[0022] Figure 3 This is a side sectional view of the connection between the I-shaped cantilever steel of the present invention and the external corner of the building;

[0023] Figure 4 For the present invention Figure 3 Schematic diagram of part B;

[0024] Figure 5 For the present invention Figure 4 Schematic diagram of part C;

[0025] Figure 6 This is a side sectional view of the prismatic sleeve connection of the present invention;

[0026] Figure 7 For the present invention Figure 6 Schematic diagram of part D;

[0027] Figure 8 For the present invention Figure 7 Schematic diagram of part E;

[0028] Figure 9 This is a schematic diagram of the I-shaped cantilever steel structure of the present invention;

[0029] Figure 10 For the present invention Figure 9 Schematic diagram of part F;

[0030] Figure 11 This is an exploded view of the constraint sleeve connection of the present invention;

[0031] Figure 12 For the present invention Figure 11 Schematic diagram of part G;

[0032] Figure 13 For the present invention Figure 12 A schematic diagram of part H.

[0033] In the diagram: 1. Building corner; 2. I-shaped cantilever steel; 3. Corner support plate; 4. Load-bearing tie rod; 5. Turnbuckle; 6. Embedded pipe sleeve; 7. Built-in high-strength threaded ring; 8. High-strength bolt; 9. First threaded head; 10. Second threaded head; 11. Protective cover; 12. Mounting slot; 13. Push pad; 14. Constraint aluminum sleeve; 15. Deformation extrusion rod; 16. Expanding guide groove; 17. Prism-shaped combination hole; 18. Prism-shaped sleeve; 19. Pointing support; 20. Extension tube; 21. Through slot; 22. Guide wheel groove; 23. Ring guide wheel; 24. Assembly nut; 25. Tensioning threaded sleeve; 26. Tensioning tie rod; 27. Auxiliary traction cable; 28. Anti-detachment pin; 29. ​​Limiting pad; 30. Reinforcing rib; 31. Connecting ear; 32. Pull nut; 33. Constraint sleeve; 34. Sealing cap. Detailed Implementation

[0034] 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see the appendix Figure 1-13 This application provides the following technical solutions.

[0036] Example 1: A high-load-bearing, high-strength corner support device for high-rise buildings includes a building corner 1. One side of the building corner 1 is provided with an I-shaped cantilever steel 2 via a pre-embedded connecting assembly. The pre-embedded connecting assembly includes two pre-embedded pipe sleeves 6 and two high-strength bolts 8. Two pre-embedded pipe sleeves 6 are respectively inserted into one side of each of the two high-strength bolts 8. A corner support plate 3 is provided at one end of the I-shaped cantilever steel 2. The two sides of the corner support plate 3 are respectively abutted against the two sides of the building corner 1. The two pre-embedded pipe sleeves 6 are respectively pre-embedded on both sides of the building corner 1. Each side of the embedded pipe sleeve 6 is provided with a built-in high-strength threaded ring 7. The two ends of the high-strength bolt 8 are respectively provided with a first threaded head 9 and a second threaded head 10. The first threaded head 9 of the high-strength bolt 8 is placed inside the embedded pipe sleeve 6 and is threadedly connected to the built-in high-strength threaded ring 7. The second threaded head 10 of the high-strength bolt 8 extends out of the embedded pipe sleeve 6. The embedded pipe sleeve 6 is pre-embedded to a fixed length before the external corner 1 of the building is poured, and the error should be less than 5mm. After the external corner 1 of the building is poured, the high-strength bolt 8 is first connected to the built-in high-strength threaded ring 7 of the embedded pipe sleeve 6 through the first threaded head 9.

[0037] A constraint protection component is installed to constrain and protect the high-strength bolt 8 connected to the tie nut 32. The constraint protection component is located on the side of the corner support plate 3 near the embedded pipe sleeve 6. The constraint protection component includes a protective cover 11 and a prismatic sleeve 18. The side of the high-strength bolt 8 away from the embedded pipe sleeve 6 passes through the corner support plate 3 and is inserted into the protective cover 11. An installation slot 12 is provided through the center of the corner support plate 3 on one side of the protective cover 11. The second threaded head 10 of the high-strength bolt 8 passes through the installation slot 12 and is placed inside the protective cover 11. A constraint sleeve 33 is inserted into the slot 12. The constraint sleeve 33 is located inside the protective cover 11 and has a limiting pad 29 on one side. The cross-sectional area of ​​the limiting pad 29 is larger than the cross-sectional size of the mounting slot 12. The second screw head 10 moves through the constraint sleeve 33 and the limiting pad 29. When the constraint sleeve 33 is inserted into the mounting slot 12, it can slide left and right but cannot rotate. When the corner support plate 3 is engaged with the high-strength bolt 8, the constraint sleeve 33 is simultaneously fitted onto the second screw head 10 and then inserted into the mounting slot 12.

[0038] The second screw head 10 passes through the limiting pad 29 and is threadedly fitted with a pull nut 32. A push pad 13 is provided between the pull nut 32 and the second screw head 10. The push pad 13 is fitted with the second screw head 10. A constraint sleeve 33 is fitted with the second screw head 10 and is provided with a constraint aluminum sleeve 14 on the side close to the pre-embedded pipe sleeve 6. One side of the constraint aluminum sleeve 14 is in contact with the pre-embedded pipe sleeve 6, and the inner diameter of the pre-embedded pipe sleeve 6 is smaller than the diameter of the constraint aluminum sleeve 14. Several expansion guide grooves 16 are opened in the constraint sleeve 33 through the limiting pad 29 on the side close to the constraint aluminum sleeve 14. Several deformable extrusion rods 15 are symmetrically provided on one side of the push pad 13. The deformable extrusion rods 15 move through the several expansion guide grooves 16 and extrude the outer periphery of the constraint aluminum sleeve 14. When the pull nut 32 approaches the limiting pad 29 through the thread, the pull nut 32 first contacts the push pad 13. The mounting slot 12 cannot move to the side of the pre-embedded pipe sleeve 6 under the action of the limiting pad 29. At this time, when the tie nut 32 pushes the pushing pad 13 to move to the position of the limiting pad 29, the pushing pad 13 controls several deformable extrusion rods 15 to continue moving along several expansion guide grooves 16, thereby abutting the easily deformable constraint aluminum sleeve 14, causing the constraint aluminum sleeve 14 to deform and clamp the high-strength bolt 8 to one side inside the constraint aluminum sleeve 14. At this time, the mounting slot 12 and the constraint aluminum sleeve 14 cannot rotate. The deformed constraint aluminum sleeve 14 presses the threads of the second screw head 10, preventing the high-strength bolt 8 and the second screw head 10 from rotating. Thus, the connection between the high-strength bolt 8 and the pre-embedded pipe sleeve 6 is strengthened to prevent loosening. Then, as the installation of the tie nut 32 is completed, the corner support plate 3 is stably attached to the building corner 1 by the double padding of the limiting pad 29 and the pushing pad 13.

[0039] A lateral lifting assembly is installed to provide multi-directional auxiliary support for the I-shaped cantilever steel 2 away from the building's external corner 1. The lateral lifting assembly includes two auxiliary tension cables 27, with the I-shaped cantilever steel 2 and a prismatic sleeve 18 inserted into both sides of each auxiliary tension cable 27. A prismatic combination hole 17 is vertically opened on one side of the protective cover 11, and a prismatic sleeve 18 is vertically and movably inserted into the prismatic combination hole 17. The prismatic sleeve 18 passes through the upper and lower ends of the protective cover 11 and has a pointing support 19 and an extension tube 20, respectively. The cross-sectional area of ​​the pointing support 19 is larger than that of the prismatic sleeve 18, and the extension tube 20 passes through the protective cover 11. The lower end is provided with an assembly nut 24 via a threaded connection. One side of the prismatic sleeve 18 located inside the protective cover 11 abuts against one end face of the pull nut 32. The end of the protective cover 11 away from the pull nut 32 is provided with a sealing cap 34. After the prismatic sleeve 18 is inserted into the protective cover 11, the prismatic sleeve 18 cannot rotate, and consequently the support 19 and extension tube 20 cannot rotate. The support 19 and the assembly nut 24 are tightly fitted together, preventing water leakage. Then, with the sealing cap 34, the protective cover 11 covers and protects the position of the pull nut 32 connected to the high-strength bolt 8, improving turnover efficiency during later disassembly and turnover.

[0040] Anti-detachment pins 28 are respectively connected to the lower ends of the two sides away from the corner support plate 3 of the I-shaped cantilever steel 2. One end of the two auxiliary traction cables 27 is connected to the two anti-detachment pins 28 respectively. The center of the prismatic sleeve 18 is provided with a through groove 21 that runs through the support 19 and the extension tube 20. One end of the auxiliary traction cable 27 is inserted into the upper end of the through groove 21. The horizontal height of the support 19 is higher than the horizontal height of the anti-detachment pins 28. The height difference between the support 19 and the anti-detachment pins 28 can be customized according to the scaffolding requirements set above the I-shaped cantilever steel 2.

[0041] A guide wheel groove 22 is provided at the upper end of the guide bracket 19. An annular guide wheel 23 is rotatably mounted within the guide wheel groove 22 via a rotating shaft. One side of the auxiliary traction cable 27 is inserted into the through-slot 21 and overlaps the upper end of the annular guide wheel 23. A tensioning sleeve 25 is rotatably inserted into the lower end of the extension tube 20. A tensioning rod 26 is located at one end of the auxiliary traction cable 27 within the through-slot 21. The lower end of the tensioning rod 26 passes through the tensioning sleeve 25 via a thread, and the length of the tensioning rod 26 is greater than the sum of the lengths of the guide bracket 19, the prismatic sleeve 18, and the extension tube 20. When the tensioning rod 26 passes through the tensioning sleeve 25, due to the relatively long length of the tensioning rod 26, when the tensioning sleeve... When the tension sleeve 25 rotates, the exposed end of the tension rod 26 needs to be restrained by a wrench or vise to rotate, so that the tension sleeve 25 rotates but the tension rod 26 does not rotate. At this time, the rotation of the tension sleeve 25 can control the tension rod 26 to move vertically. Then, the tension rod 26 pulls the auxiliary tension cable 27 to pull and support the far end of the I-shaped cantilever steel 2, improving the support strength of the end of the I-shaped cantilever steel 2 away from the building's external corner 1. At the same time, it tilts to both sides and pulls upward with the auxiliary tension cable 27, which can keep the lateral support of the I-shaped cantilever steel 2 stable. When the cantilever support has high load-bearing requirements, it shares the force of the tension support of the tension rod 4 and improves stability.

[0042] Example 2: Based on Example 1, a connecting lug 31 is provided on the upper side of the I-shaped cantilever steel 2 away from the corner support plate 3. A tension rod 4 is rotatably provided on the connecting lug 31 via a pin. A turnbuckle 5 is threadedly connected to the end of the tension rod 4 away from the I-shaped cantilever steel 2. A tension rod 4 is also provided at the end of the turnbuckle 5 away from the I-shaped cantilever steel 2. The tension rod 4 is connected to the beams and slabs of the upper floor of the building to provide tension support for the I-shaped cantilever steel 2. If the load-bearing requirements are high, multiple tension rods 4 and turnbuckles 5 can be added, as well as a support profile that overlaps with the lower building can be supported at the bottom of the I-shaped cantilever steel 2.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-load-bearing, high-strength cantilever auxiliary support device for high-rise buildings, characterized in that, include: The building corner (1) has an I-shaped cantilever steel (2) on one side through a pre-embedded connecting assembly. The pre-embedded connecting assembly includes two pre-embedded pipe sleeves (6) and two high-strength bolts (8). The two high-strength bolts (8) are respectively inserted into the two pre-embedded pipe sleeves (6). A corner support plate (3) is provided on one side of the I-shaped cantilever steel (2). The two sides of the corner support plate (3) are respectively attached to the two sides of the building corner (1). The constraint protection component is located on the side of the corner support plate (3) near the pre-embedded pipe sleeve (6). The constraint protection component includes a protective cover (11) and a prismatic sleeve (18). The high-strength bolt (8) passes through the corner support plate (3) and is inserted into the protective cover (11) on the side away from the pre-embedded pipe sleeve (6). The lateral lifting assembly includes two auxiliary traction cables (27), and each of the auxiliary traction cables (27) is respectively connected to an I-shaped cantilever steel (2) and a prismatic sleeve (18).

2. The high-load-bearing, high-rise building ultra-strong cantilever auxiliary support device according to claim 1, characterized in that: The two pre-embedded pipe sleeves (6) are respectively pre-embedded on both sides of the external corner (1) of the building. Each pre-embedded pipe sleeve (6) has a built-in high-strength screw ring (7) on one side. The two ends of the high-strength bolt (8) are respectively provided with a first screw head (9) and a second screw head (10). The first screw head (9) of the high-strength bolt (8) is placed inside the pre-embedded pipe sleeve (6) and threadedly connected to the built-in high-strength screw ring (7). The second screw head (10) of the high-strength bolt (8) extends out of the pre-embedded pipe sleeve (6).

3. The high-load-bearing, high-rise building ultra-strong cantilever auxiliary support device according to claim 2, characterized in that: The corner support plate (3) has a through-hole (12) at the center of one side of the protective cover (11). The second screw head (10) of the high-strength bolt (8) passes through the through-hole (12) and is placed inside the protective cover (11). A constraint sleeve (33) is inserted into the through-hole (12). A limiting pad (29) is provided on one side of the constraint sleeve (33) inside the protective cover (11). The cross-sectional area of ​​the limiting pad (29) is larger than the cross-sectional size of the through-hole (12), and the second screw head (10) moves through the constraint sleeve (33) and the limiting pad (29).

4. The high-load-bearing, high-rise building ultra-strong cantilever auxiliary support device according to claim 3, characterized in that: The second screw head (10) is threaded through one end of the limiting pad (29) and is fitted with a pull nut (32). A push pad (13) is provided between the pull nut (32) and the second screw head (10). The push pad (13) is fitted with the second screw head (10). The constraint sleeve (33) is fitted with the second screw head (10) and is fitted with a constraint aluminum sleeve (14) on one side near the pre-embedded pipe sleeve (6). One side of the constraint aluminum sleeve (14) is in contact with the pre-embedded pipe sleeve (6), and the inner diameter of the pre-embedded pipe sleeve (6) is smaller than the diameter of the constraint aluminum sleeve (14).

5. A high-load-bearing, high-rise building ultra-strong cantilever auxiliary support device according to claim 4, characterized in that: The constraint sleeve (33) has several expansion guide grooves (16) through the limiting pad (29) on one side near the constraint aluminum sleeve (14). Several deformation extrusion rods (15) are symmetrically arranged on one side of the pushing pad (13). The several deformation extrusion rods (15) move through the several expansion guide grooves (16) and extrude the outer periphery of the constraint aluminum sleeve (14).

6. The high-load-bearing, high-rise building ultra-strong cantilever auxiliary support device according to claim 5, characterized in that: A prismatic combination hole (17) is vertically opened through one side of the protective cover (11). A prismatic sleeve (18) is vertically and movably inserted into the prismatic combination hole (17). The prismatic sleeve (18) passes through the upper and lower ends of the protective cover (11) and is respectively provided with a pointing support (19) and an extension tube (20). The cross-sectional area of ​​the pointing support (19) is larger than the cross-sectional area of ​​the prismatic sleeve (18). The extension tube (20) passes through the lower end of the protective cover (11) and is provided with an assembly nut (24) by threaded connection.

7. A high-load-bearing, high-rise building ultra-strong cantilever auxiliary support device according to claim 6, characterized in that: The prismatic sleeve (18) is located inside the protective cover (11) on one side, which abuts against one end of the pull nut (32). The protective cover (11) is provided with a sealing cap (34) at the end away from the pull nut (32).

8. A high-load-bearing, high-rise building ultra-strong cantilever auxiliary support device according to claim 7, characterized in that: The lower ends of the I-shaped cantilever steel (2) away from the corner support plate (3) are respectively connected to anti-detachment pins (28). One end of the two auxiliary traction cables (27) is connected to the two anti-detachment pins (28). The center of the prismatic sleeve (18) is provided with a through groove (21) that points to the support (19) and the extension tube (20). One end of the auxiliary traction cable (27) is inserted into the upper end of the through groove (21).

9. A high-load-bearing, high-rise building ultra-strong cantilever auxiliary support device according to claim 8, characterized in that: The horizontal height of the pointing support (19) is higher than that of the anti-detachment pin (28). The upper end of the pointing support (19) is provided with a guide wheel groove (22). A ring guide wheel (23) is rotatably provided in the guide wheel groove (22) via a self-rotating shaft. The auxiliary traction cable (27) is inserted into the through groove (21) on one side and overlaps the upper end of the ring guide wheel (23). The lower end of the extension tube (20) is rotatably inserted with a tensioning sleeve (25). One end of the auxiliary traction cable (27) located in the through groove (21) is provided with a tensioning rod (26). The lower end of the tensioning rod (26) is threaded through the tensioning sleeve (25), and the length of the tensioning rod (26) is greater than the sum of the lengths of the pointing support (19), the prismatic sleeve (18), and the extension tube (20).

10. A high-load-bearing, high-rise building ultra-strong cantilever auxiliary support device according to claim 9, characterized in that: The I-shaped cantilever steel (2) is provided with a connecting ear (31) on the upper side away from the corner support plate (3). A force-bearing tie rod (4) is provided on the connecting ear (31) through a pin shaft. A turnbuckle (5) is provided on the end of the force-bearing tie rod (4) away from the I-shaped cantilever steel (2) through a threaded connection.

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