A large cantilever structure support system and construction method thereof

Abstract

The present invention proposes a large cantilever structure support system and a construction method thereof, wherein the support system comprises an I-beam, the anchoring section of the I-beam is placed on the lower floor, a support assembly matched with the outer end of the anchoring section is arranged at the lower side beam of the lower floor, a positioning assembly is arranged on the lower floor or the upper side beam, auxiliary adjustment assemblies are arranged on both sides of the support assembly, the auxiliary adjustment assembly comprises a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod are both hinged to the support assembly, a detachable upper stopper is arranged at the inner end of the second connecting rod, the upper stopper is against the upper end of the anchoring section, a strip hole is arranged at the outer end of the second connecting rod, the inner end of the first connecting rod is hinged to the strip hole, a lower stopper is arranged at the outer end, and the lower stopper is against the lower end of the cantilever section. The present invention has a reverse force on the cantilever section and the anchoring section of the I-beam respectively through the cooperation of the support assembly and the auxiliary adjustment assembly, which is conducive to keeping the I-beam horizontal and is easy to install and disassemble.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, in particular to a large cantilever structure support system and a construction method thereof. Background Art

[0002] The existing cantilever support system mainly includes multiple cantilevered I-beams. The cantilever section of the I-beam is connected to the embedded bolts of the upper floor through the diagonal tie rod, and the anchor section of the I-beam is fixed to the lower floor through the embedded anchor ring. For building structures with long cantilever parts, the bearing capacity and stability of the support system need to be further enhanced. Especially for high-altitude sloping roofs with a cantilever length of more than 2.5m, because the cantilever part is long and located at high altitude, it is easily affected by factors such as wind, and the bearing capacity and stability of the support system are required to be higher.

[0003] In order to increase the bearing capacity and stability of the I-beam, the support structure added in the prior art is prone to problems such as requiring a lot of materials, complicated procedures, and difficulty in installation and disassembly. For example, an inclined support beam is added at the lower end of the cantilever section, and the inclined support beam is connected to the lower floor slab (the floor slab adjacent to the lower floor slab), such as Chinese patent documents CN 217205335 U and CN105298107B; or an external wall scaffolding for support is added below the cantilever section, and the external wall scaffolding is connected to the lower floor slab, etc., such as Chinese patent document CN108643544B. The above structures increase the time required for erection and dismantling, and are labor-intensive and material-intensive. In addition, in order to connect the inclined support beam or the external wall scaffolding to the floor slab, it is necessary to increase the number of embedded components on the floor slab, such as embedded bolts, etc. After the construction, the embedded bolts need to be cut off. Summary of the invention

[0004] The present invention proposes a large cantilever structure support system and a construction method thereof. Through the cooperation of a support component and an auxiliary adjustment component, a certain reverse force is exerted on the cantilever section and the anchor section of the I-beam respectively, which is beneficial for the I-beam to remain horizontal. The system is easy to install and disassemble without increasing the number of embedded bolts and the construction process.

[0005] The technical solution of the present invention is implemented as follows: a large cantilever structure support system includes a plurality of horizontal cantilevered I-beams, the I-beams include anchoring sections and cantilever sections, the anchoring sections are placed on the lower floor slab, a lower side beam is arranged at the lower end of the edge of the lower floor slab, an upper side beam is arranged at the lower end edge of the upper floor slab, embedded bolts are arranged on the upper side beams, and the cantilever sections are connected to the embedded bolts through inclined tie rods;

[0006] A support assembly matched with the outer end of the anchoring section is provided at the lower layer side beam, a positioning assembly is provided on the lower layer floor or the upper layer side beam, the positioning assembly is used to fix the support assembly, auxiliary adjustment assemblies are provided on both sides of the support assembly, the auxiliary adjustment assembly includes a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod are both hinged to the support assembly, a detachable upper stopper is provided between the inner ends of the two second connecting rods, the upper stopper is abutted against the upper end of the anchoring section, a strip hole is provided at the outer end of the second connecting rod, the inner end of the first connecting rod is hinged to the strip hole, a lower stopper is provided between the outer ends of the two first connecting rods, and the lower stopper is abutted against the lower end of the cantilever section;

[0007] Supporting uprights are arranged at intervals on the upper side of the outer end of the anchoring section, and a scaffold is arranged on the cantilever section, and the horizontal bars of the scaffold are connected with the supporting uprights.

[0008] Furthermore, the hinge of the first connecting rod is close to the lower stop rod, the inner end of the first connecting rod is heavier, the hinge of the second connecting rod is far away from the upper stop rod, the upper stop rod of the second connecting rod is heavier, and the intersection of the first connecting rod and the second connecting rod is in a horizontal state.

[0009] Furthermore, the support assembly includes two spaced-apart limit baffles, a cantilever support plate is fixed between the outer ends of the limit baffles, a vertical support plate is fixed at the lower end of the cantilever support plate, the vertical support plate is abutted against the lower side beam, the inner end of the limit baffle is placed on the lower floor slab, and the outer end of the anchoring section is placed between the two limit baffles.

[0010] Furthermore, a positioning assembly is provided on the upper side beam, and the positioning assembly includes a positioning top plate, which is located on the inner side of the upper side beam, connected to the embedded bolts and abutted against the upper floor slab, a positioning groove matched with the supporting vertical pole is fixed at the lower end of the positioning top plate, the upper end of the supporting vertical pole is placed in the positioning groove and abutted against the positioning top plate, a U-shaped socket with an opening facing downward is fixed at the lower end of the supporting vertical pole, and a slot matched with the U-shaped socket is provided on the limit baffle.

[0011] Furthermore, a detachable positioning plate is provided at the upper end between the two limit baffles, and a positioning assembly is provided on the lower floor slab, the positioning assembly comprising a first embedded anchor ring, the first embedded anchor ring is embedded in the edge of the lower floor slab, the threaded end of the first embedded anchor ring passes through the limit baffle and the positioning plate in turn, and is screwed with a locking nut. The limit baffle and the positioning plate are fixed by the first embedded anchor ring, and the I-beam is also fixed by the positioning plate.

[0012] Furthermore, the inner end of the anchoring section is connected to the lower floor slab through a second embedded anchor ring; or a reinforcing pole is arranged on the upper side of the inner end of the anchoring section, the lower end of the reinforcing pole is a U-shaped seat with an opening facing downward, the U-shaped seat abuts against the anchoring section, and the upper end of the reinforcing pole abuts against the upper floor slab. By setting this structure, the inner end of the anchoring section is fixed, the stability of the I-beam is further increased, and it is conducive to maintaining its horizontality.

[0013] Furthermore, a first reinforcing steel plate is provided on the outer side of the lower side beam and the upper side of the lower floor slab, a second reinforcing steel plate is provided on the inner side of the upper side beam and the lower side of the upper floor slab, and embedded steel mesh is fixed on the first reinforcing steel plate and the second reinforcing steel plate. The embedded steel mesh increases the fixing stability of the first reinforcing steel plate and the second reinforcing steel plate, and is also conducive to increasing the structural strength of the floor slab edge and side beam, avoiding damage to the support system.

[0014] The method for using the large cantilever structure support system comprises the following steps:

[0015] (1) Place a support assembly at the edge of the lower floor slab, place an I-beam on the lower floor slab, and let the I-beam pass through the support assembly. Fix the support assembly with a positioning assembly, and install a support pole at the outer end of the anchor section.

[0016] (2) Install the upper stopper of the auxiliary adjustment assembly so that the upper stopper abuts against the upper end of the anchoring section and the lower stopper abuts against the lower end of the cantilever section;

[0017] (3) Connect the cantilever section with the embedded bolts through the diagonal rods, and finally install the scaffolding and connect the horizontal bars of the scaffolding with the supporting vertical bars.

[0018] Furthermore, the method for fixing the supporting assembly by the positioning assembly is as follows: the I-beam passes through two limit baffles, the U-shaped holder is placed in the slot, and the U-shaped holder is abutted against the upper end of the I-beam, and the length of the supporting upright is adjusted so that the upper end of the supporting upright is placed in the positioning slot and abuts against the positioning top plate.

[0019] Beneficial effects of the present invention:

[0020] The present invention enhances the support for the I-beam through the cooperation of the supporting assembly and the auxiliary adjustment assembly. The upper baffle rod abuts against the upper end of the anchoring section, and the lower baffle rod abuts against the lower end of the cantilever section. The cantilever section is subjected to force and tilted downward, and the anchoring section is subjected to force and tilted upward. Through the cooperation of the first connecting rod and the second connecting rod, the upper baffle rod and the lower baffle rod respectively exert a certain reverse force on the cantilever section and the anchoring section of the I-beam, which is beneficial for the I-beam to remain horizontal and enhance the bearing capacity and stability of the I-beam.

[0021] If the support assembly of the present invention is fixed by the first embedded anchor ring, the embedded anchor ring already available in the prior art can be used, and there is no need to add additional anchoring devices such as embedded bolts, etc., and the construction process is not increased, and the time required for installation and disassembly is basically not increased. If the support assembly of the present invention is positioned and fixed by positioning the top plate, the support pole, the U-shaped holder, etc., the fixing of the support assembly and the I-beam is completed synchronously with the installation of the support pole, so that the installation and disassembly process is simple and convenient, and the embedded anchor ring on the lower floor slab can be omitted, and there is no need to install the locking nut, and there is no need to cut off the embedded anchor ring later. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is a schematic diagram of the structure of the support system of Example 1;

[0024] Figure 2 A schematic diagram of the structure of the auxiliary adjustment component;

[0025] Figure 3 for Figure 2 A partial enlarged view of middle A;

[0026] Figure 4 is a schematic structural diagram of a first pre-buried anchor ring;

[0027] Figure 5 is a structural schematic diagram of an upper gear lever;

[0028] Figure 6 It is a structural schematic diagram of the support system of Example 2;

[0029] Figure 7 It is a structural schematic diagram of a U-shaped card holder.

[0030] Anchoring section 1, cantilever section 2, lower floor slab 3, lower side beam 4, upper floor slab 5, upper side beam 6, embedded bolts 7, diagonal tie rod 8, first reinforcing steel plate 9, limit baffle 10, cantilever support plate 11, vertical support plate 12, positioning plate 13, first embedded anchor ring 14, locking nut 15, second embedded anchor ring 16, square wood 17, first connecting rod 18, second connecting rod 19, upper baffle rod 20, embedded steel bars 21, strip hole 22, lower baffle rod 23, supporting vertical pole 24, scaffolding 25, limit nut 26, positioning top plate 27, second reinforcing steel plate 28, positioning groove 29, U-shaped holder 30, slot 31, lower adjusting rod 32, upper vertical pole 33, reinforcement vertical pole 34, U-shaped seat 35, rotating shaft 36, elastic member 37. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Example 1

[0033] like Figure 1 As shown, a large cantilever structure support system includes multiple horizontal cantilevered I-beams, the I-beams include anchoring sections 1 and cantilever sections 2, the anchoring sections 1 are placed on the lower floor slab 3, and the cantilever sections 2 extend out of the lower floor slab 3 and are suspended in the air. A lower layer side beam 4 is vertically fixed to the lower end of the edge of the lower floor slab 3, an upper layer side beam 6 is vertically fixed to the lower end edge of the upper floor slab 5, and embedded bolts 7 are pre-embedded on the upper layer side beam 6, and the cantilever section 2 is connected to the embedded bolts 7 through a diagonal tie rod 8.

[0034] The outer side of the lower side beam 4 and the upper side of the lower floor slab 3 are fixed with a first reinforcing steel plate 9, and embedded steel mesh is fixed on the first reinforcing steel plate 9. The embedded steel mesh is embedded in the lower side beam 4 and the lower floor slab 3, which increases the stability of the first reinforcing steel plate 9, and at the same time increases the load-bearing capacity and strength of the edge of the lower floor slab 3 and the lower side beam 4, avoiding damage due to the installation of subsequent support components and I-beams.

[0035] like Figure 1 , 2 As shown in Figure 4, a support assembly that cooperates with the outer end of the anchoring section 1 is provided at the lower layer side beam 4, and the support assembly includes two spaced limit baffles 10, and a cantilever support plate 11 is fixed between the outer ends of the limit baffles 10, and the cantilever support plate 11 is used to support the I-beam. A vertical support plate 12 is fixed to the lower end of the cantilever support plate 11, and a reinforcing rib is fixed between the cantilever support plate 11 and the vertical support plate 12, and the vertical support plate 12 is against the outer side of the lower layer side beam 4. The inner end of the limit baffle 10 is placed on the lower floor slab 3, and the outer end of the anchoring section 1 is placed between the two limit baffles 10. A detachable positioning plate 13 is fixed to the upper end between the two limit baffles 10, and the positioning plate 13 is used to prevent the anchoring section 1 from being tilted upward due to force.

[0036] like Figure 1 and 4 As shown, a positioning assembly is provided on the lower floor 3, and the positioning assembly includes a first embedded anchor ring 14, which is a U-shaped clamping ring with an opening facing upwards. The first embedded anchor ring 14 is embedded in the edge of the lower floor 3, and the threaded end of the first embedded anchor ring 14 passes through the limit baffle 10 and the positioning plate 13 in turn, and is screwed with a locking nut 15 to complete the fixation of the limit baffle 10 and the positioning plate 13, thereby limiting the position of the I-beam to prevent it from shifting. The inner end of the anchoring section 1 is connected to the lower floor 3 through the second embedded anchor ring 16, and the second embedded anchor ring 16 is also a U-shaped clamping ring, and its U-shaped end is embedded in the lower floor 3. The gaps between the first embedded anchor ring 14 and the second embedded anchor ring 16 and the I-beam are wedged with square wood 17 to prevent the I-beam from twisting. Embedded steel bars 21 are added on both sides of the bottom of the first embedded anchor ring 14 and the second embedded anchor ring 16 to prevent the floor from cracking due to stress.

[0037] like Figure 1 , 2 As shown in , 3 and 5, auxiliary adjustment components are provided on both sides of the support assembly, and the auxiliary adjustment components include a first connecting rod 18 and a second connecting rod 19. The first connecting rod 18 and the second connecting rod 19 are both hinged to the limit baffle 10. A detachable upper baffle 20 is provided between the inner ends of the two second connecting rods 19. For example, a socket is provided at the inner end of the second connecting rod 19, and the end of the upper baffle 20 passes through the socket and is screwed with a limit nut 26. When the upper baffle 20 needs to be removed, the limit nut 26 can be removed. Before installing the I-beam, remove the upper baffle 20 first to facilitate the installation of the I-beam. The upper baffle 20 is abutted against the upper end of the anchoring section 1, and a strip hole 22 is provided at the outer end of the second connecting rod 19. The inner end of the first connecting rod 18 is hinged to the strip hole 22. A lower baffle 23 is fixed between the outer ends of the two first connecting rods 18, and the lower baffle 23 is abutted against the lower end of the cantilever section 2.

[0038] The hinge of the first link 18 is close to the lower stopper 23, so that the inner end of the first link 18 is heavier and tends to move downward under the action of gravity, so that the lower stopper 23 tends to move upward, but the inner end of the first link 18 cannot move downward due to the restriction of the I-beam on the lower stopper 23. The hinge of the second link 19 is far away from the upper stopper 20, so that the upper stopper 20 of the second link 19 is heavier, and the upper stopper 20 cannot move downward due to the restriction of the I-beam. Therefore, when the I-beam is kept horizontal, the intersection of the first link 18 and the second link 19 is also in a horizontal state, and at the same time, the upper stopper 20 and the lower stopper 23 are always in close contact with the surface of the I-beam, and a certain reverse force is exerted on the cantilever section 2 and the anchor section 1 of the I-beam, respectively, which is conducive to keeping the I-beam horizontal.

[0039] If the cantilever section 2 of the I-beam tends to tilt downward due to the force, the lower baffle rod 23 is subjected to downward force and tends to move downward, the inner end of the first connecting rod 18 will drive the outer end of the second connecting rod 19 to move upward, thereby causing the inner end of the second connecting rod 19 to drive the upper baffle rod 20 to move downward, and the upper baffle rod 20 applies a downward force to the anchor section 1 of the I-beam to prevent the anchor section 1 from warping up, thereby improving the problem of the cantilever section 2 tilting downward, and then keeping the I-beam in a horizontal state.

[0040] like Figure 1 As shown, a support pole 24 is provided at intervals on the upper side of the outer end of the anchoring section 1. The support pole 24 is a pole with adjustable length, the upper end of which is against the upper floor 5, and the lower end is against the anchoring section 1. The cantilever section 2 is provided with a scaffold 25, and the horizontal rod of the scaffold 25 is connected to the support pole 24. The support pole 24 further improves the stability of the entire support system.

[0041] The method for using the large cantilever structure support system comprises the following steps:

[0042] (1) Place a support assembly at the edge of the lower floor 3, place an I-beam on the lower floor 3, and pass the I-beam through the support assembly, and fix the support assembly through the positioning assembly, and install a support upright 24 at the outer end of the anchor section 1, specifically: abut the vertical support plate 12 against the outer side of the lower side beam 4, and install the limit baffle 10 on the first embedded anchor ring 14, then place the I-beam on the lower floor 3, and pass the I-beam between the two limit baffles 10, install the positioning plate 13 on the first embedded anchor ring 14, tighten the locking nut 15, thereby fixing the limit baffle 10 and the positioning plate 13, and finally install the support upright 24, so that the upper end of the support upright 24 abuts against the upper floor 5, and the lower end abuts against the anchor section 1;

[0043] (2) Install the upper stopper 20 of the auxiliary adjustment assembly so that the upper stopper 20 abuts against the upper end of the anchoring section 1 and the lower stopper 23 abuts against the lower end of the cantilever section 2;

[0044] (3) Connect the cantilever section 2 to the embedded bolts 7 via the diagonal tie rods 8, and finally install the scaffolding 25, and connect the horizontal bars of the scaffolding 25 to the supporting vertical bars 24.

[0045] Example 2

[0046] This embodiment is basically the same as embodiment 1, except that Figure 6 and 7 As shown, a positioning assembly is provided on the upper side beam 6, and the positioning assembly includes a positioning top plate 27, and the positioning top plate 27 is located on the inner side of the upper side beam 6, and the inner side of the upper side beam 6 and the lower side of the upper floor 5 are fixed with a second reinforcing steel plate 28, and the second reinforcing steel plate 28 is fixed with an embedded steel mesh, and the embedded steel mesh is embedded in the upper side beam 6 and the upper floor 5 to enhance the load-bearing and strength of the place.

[0047] The end of the positioning top plate 27 is connected to the embedded bolts 7, the upper end of the positioning top plate 27 is abutted against the upper floor 5, and the lower end of the positioning top plate 27 is fixed with a positioning groove 29 that cooperates with the support upright 24. The upper end of the support upright 24 is placed in the positioning groove 29 and abuts against the positioning top plate 27. The lower end of the support upright 24 is fixed with a U-shaped holder 30 with an opening facing downward. The limiting baffle 10 is provided with a slot 31 that cooperates with the U-shaped holder 30. The U-shaped holder 30 is placed at the slot 31 and abuts against the anchoring section 1 of the I-beam. The position of the positioning top plate 27 is fixed by the embedded bolts 7, and the position of the support upright 24 is fixed by the positioning groove 29. Then the support assembly is fixed by the U-shaped holder 30 and the slot 31, and the I-beam is also fixed. The support rod 24 includes a lower adjustment rod 32 , the lower end of the lower adjustment rod 32 is fixed to the U-shaped holder 30 , and the upper end is screwed with an upper rod 33 . The length of the support rod 24 can be adjusted by rotating the upper rod 33 .

[0048] A reinforcing rod 34 is provided on the upper side of the inner end of the anchoring section 1, and the lower end of the reinforcing rod 34 is a U-shaped seat 35 with an opening facing downward, the U-shaped seat 35 abuts against the anchoring section 1, and the upper end of the reinforcing rod 34 abuts against the upper floor 5. The structure of the reinforcing rod 34 is the same as that of the supporting rod 24. The gaps between the U-shaped seat 30 and the U-shaped seat 35 and the I-beam are wedged tightly with square wood 17.

[0049] The method for fixing the supporting assembly by the positioning assembly is as follows: place the I-beam on the lower floor 3, the I-beam passes through between the two limit baffles 10, place the U-shaped holder 30 in the slot 31, and the U-shaped holder 30 is against the upper end of the I-beam, adjust the length of the supporting upright 24, so that the upper end of the supporting upright 24 is placed in the positioning slot 29 and against the positioning top plate 27.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A large cantilever structure support system, comprising a plurality of horizontal cantilevered I-beams, the I-beams comprising an anchoring section and a cantilever section, the anchoring section being placed on the lower floor slab, a lower side beam being arranged at the lower end of the edge of the lower floor slab, an upper side beam being arranged at the lower end edge of the upper floor slab, embedded bolts being arranged on the upper side beam, and the cantilever section being connected to the embedded bolts via a diagonal tie rod; characterized in that: A support assembly matched with the outer end of the anchoring section is provided at the lower layer side beam, a positioning assembly is provided on the lower layer floor or the upper layer side beam, the positioning assembly is used to fix the support assembly, auxiliary adjustment assemblies are provided on both sides of the support assembly, the auxiliary adjustment assembly includes a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod are both hinged to the support assembly, a detachable upper stopper is provided between the inner ends of the two second connecting rods, the upper stopper is abutted against the upper end of the anchoring section, a strip hole is provided at the outer end of the second connecting rod, the inner end of the first connecting rod is hinged to the strip hole, a lower stopper is provided between the outer ends of the two first connecting rods, and the lower stopper is abutted against the lower end of the cantilever section; Supporting poles are arranged at intervals on the upper side of the outer end of the anchoring section, and a scaffold is arranged on the cantilever section, and the horizontal poles of the scaffold are connected to the supporting poles; The hinge of the first link is close to the lower stopper, the inner end of the first link is heavier, the hinge of the second link is far from the upper stopper, the upper stopper of the second link is heavier, and the intersection of the first link and the second link is in a horizontal state; The supporting assembly includes two spaced-apart limit baffles, a cantilever support plate is fixed between the outer ends of the limit baffles, a vertical support plate is fixed at the lower end of the cantilever support plate, the vertical support plate is abutted against the lower side beam, the inner end of the limit baffle is placed on the lower floor slab, and the outer end of the anchoring section is placed between the two limit baffles.

2. A large cantilever structure support system according to claim 1, characterized in that: A positioning assembly is provided on the upper side beam, and the positioning assembly includes a positioning top plate, which is located on the inner side of the upper side beam, is connected to the embedded bolts and abuts against the upper floor slab, a positioning groove matched with the supporting vertical rod is fixed at the lower end of the positioning top plate, the upper end of the supporting vertical rod is placed in the positioning groove and abuts against the positioning top plate, a U-shaped socket with an opening facing downward is fixed at the lower end of the supporting vertical rod, and a slot matched with the U-shaped socket is provided on the limit baffle.

3. A large cantilever structure support system according to claim 1, characterized in that: A detachable positioning plate is arranged at the upper end between the two limit baffles, and a positioning assembly is arranged on the lower floor slab. The positioning assembly comprises a first embedded anchor ring, which is embedded in the edge of the lower floor slab. The threaded end of the first embedded anchor ring passes through the limit baffle and the positioning plate in sequence, and is screwed with a locking nut.

4. The large cantilever structure support system according to claim 1 is characterized in that: The inner end of the anchoring section is connected to the lower floor slab through a second pre-buried anchor ring.

5. The large cantilever structure support system according to claim 1 is characterized in that: A reinforcing pole is arranged on the upper side of the inner end of the anchoring section, the lower end of the reinforcing pole is a U-shaped seat with an opening facing downwards, the U-shaped seat abuts against the anchoring section, and the upper end of the reinforcing pole abuts against the upper floor slab.

6. A large cantilever structure support system according to claim 1 or 2, characterized in that: A first reinforcing steel plate is arranged on the outer side of the lower side beam and the upper side of the edge of the lower floor slab, a second reinforcing steel plate is arranged on the inner side of the upper side beam and the lower side of the edge of the upper floor slab, and embedded steel meshes are fixed on the first and second reinforcing steel plates.

7. A method for using the large cantilever structure support system according to any one of claims 1 to 6, characterized in that: The following steps are involved: (1) Place a support assembly at the edge of the lower floor slab, place an I-beam on the lower floor slab, and let the I-beam pass through the support assembly. Fix the support assembly with a positioning assembly, and install a support pole at the outer end of the anchoring section. (2) Install the upper stopper of the auxiliary adjustment assembly so that the upper stopper abuts against the upper end of the anchoring section and the lower stopper abuts against the lower end of the cantilever section; (3) Connect the cantilever section with the embedded bolts through the diagonal rods, and finally install the scaffolding and connect the horizontal bars of the scaffolding with the supporting vertical bars.

8. The method of use according to claim 7, characterized in that: The method of fixing the supporting assembly with the positioning assembly is as follows: the I-beam passes through two limit baffles, the U-shaped holder is placed in the slot, and the U-shaped holder is against the upper end of the I-beam, and the length of the supporting vertical rod is adjusted so that the upper end of the supporting vertical rod is placed in the positioning slot and against the positioning top plate.

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