Construction process of high-rise building overhanging plate cable-stayed anchoring

Abstract

The application discloses a high-rise building overhanging plate cable-stayed anchoring construction process, which comprises the following steps: step one, determining a large-area overhanging plate cable-stayed anchoring support construction scheme of a high-rise building; step two, constructing a concrete structure of a floor where the overhanging plate is located; step three, after the concrete strength of the overhanging plate reaches 85% of the design strength, presetting a through hole in the upper outer wall of the overhanging plate for an ordinary floor overhanging plate, and anchoring a middle anchoring end through bolt at the through hole position; and for a roof overhanging plate, installing a steel transfer column at a vertical embedded plate position on the top of the outer wall. The high-rise building overhanging plate cable-stayed anchoring construction process provided by the application utilizes a symmetrical cable-stayed mode to take the original floor or roof as a side tensile anchoring end, and the other side is assembled with an overhanging plate support, thereby forming a high-altitude cable-stayed anchoring structure which is reasonable in stress, safe and stable, and has a landscape effect, and the construction difficulty of a large-area concrete structure overhanging plate on the outer edge of a high-rise building can be effectively solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of building technology, more particularly, it relates to a high-rise building overhanging plate cable-stayed anchoring construction process. BACKGROUND

[0002] The construction difficulty of the high-rise building large-area concrete structure overhanging plate is the difficulty of bottom formwork support setting and the safety and stability of the support. The conventional mode is to use the outer wall and floor slab of the floor below the overhanging plate as the lower support structure, to set up the support by using the scaffold system, to be highly dependent on the lower concrete strength, and to exert a large eccentric additional load on the single side of the house, which is easy to cause the cracking and damage of the concrete structure formed for a short time and the safety risk of the support overturning.

[0003] Therefore, the present application provides a high-rise building overhanging plate cable-stayed anchoring construction process. SUMMARY

[0004] In view of the deficiencies in the prior art, the purpose of the present application is to provide a high-rise building overhanging plate cable-stayed anchoring construction process, which uses a symmetric cable-stayed method to form a high-altitude cable-stayed anchoring structure with reasonable stress, safety and stability and landscape effect by using the original floor or roof as a side tension anchoring end and assembling an overhanging plate support on the other side to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0006] A high-rise building overhanging plate cable-stayed anchoring construction process, comprising the following steps:

[0007] Step 1: Determine the high-rise building large-area overhanging plate cable-stayed anchoring support construction scheme, and make the floor or roof anchor plate, steel wire cable, intermediate anchoring end through bolt or vertical embedded plate, and steel transfer column welded on the vertical embedded plate, support and forming mold for preparing the overhanging plate involved in the construction scheme;

[0008] Step 2: Overhanging plate floor concrete structure construction, embed a plurality of anchor plates on the roof or roof, the anchor plate height is the same as the plate thickness, and the upper end is exposed to the cable anchoring screw end, embed the intermediate anchoring end through bolt in the outer wall of the floor or embed the vertical embedded plate on the top of the outer wall, embed two rows of foundation bolts on the outer side of the outer wall at the height of the overhanging plate, and strengthen the steel bars on the floor or roof of the overhanging plate floor according to the tension on the upper and lower surfaces of the overhanging plate, and complete the concrete pouring and curing of the overhanging plate floor;

[0009] Step 3: After the concrete strength of the overhanging plate reaches 85% of the design strength;

[0010] For ordinary floor cantilevered plate, a through hole is preset on the upper outer wall of the cantilevered plate, and a middle anchoring end pair of through bolts are anchored at the through hole position;

[0011] For roof cantilevered plate, a steel adapter column is installed at the vertical embedded plate on the top of the outer wall, and a middle anchoring end pair of through bolts are fixedly installed on the steel adapter column;

[0012] Step four: one end of the steel wire cable of the preceding construction is anchored on the cable anchoring screw end of the embedded anchor plate exposed on the floor or roof, and the other end is anchored on one end of the middle anchoring end pair of through bolts on the same side, and then the steel wire cable for pulling the support is symmetrically installed on the other end of the middle anchoring end pair of through bolts;

[0013] Step five: hoist the prefabricated support, weld a plurality of anchor plates on the upper part of the support, hoist the support, and connect one end of the support close to the outer wall to the embedded anchor bolt of the outer wall, and then connect the other end of the steel wire cable for pulling the support in step four to the cable anchoring screw end of the anchor plate on the upper part of the support;

[0014] Step six: pre-press the support to eliminate deformation and adjust the tightening force of the steel wire cable to achieve stable and flat support, then install the forming template on the outer side of the support, and ensure that the forming template meets the template accuracy requirements, and then pour the cantilevered plate concrete;

[0015] Step seven: after the cantilevered plate concrete strength meets the requirements,

[0016] For ordinary floor cantilevered plate, remove the forming template, steel wire cable and middle anchoring end pair of through bolts outside the cantilevered plate;

[0017] For high-rise building roof cantilevered plate, remove the forming template, retain the middle anchoring end pair of through bolts and the steel wire cable, form a symmetrical cable-stayed anchoring structure on the high-rise building roof, enhance the wind lifting resistance of the cantilevered plate, and form a certain modeling landscape effect.

[0018] The high-rise building cantilevered plate cable-stayed anchoring construction technology uses the symmetrical cable-stayed method to form a high-altitude cable-stayed anchoring structure with reasonable stress, safety and stability, and landscape effect, which can effectively solve the construction difficulty of large-area cantilevered plate of high-rise building concrete structure.

[0019] The high-rise building cantilevered plate cable-stayed anchoring construction technology, wherein the support includes a plurality of unit modules, and the hoisting operation method of the support is as follows:

[0020] One of the unit modules is hoisted, and one end of the hoisted unit module is positioned close to the outer wall and is threadedly connected with the embedded anchor bolt of the outer wall, and then the remaining unit modules are fastened or welded at the end away from the anchor bolt of the already installed unit module, and whenever one unit module is installed, the steel wire cable on the outer side of the outer wall is connected to the cable anchoring screw end of the anchor plate on the upper part of the corresponding unit module, and then the hoisting equipment is removed to prevent the installed unit module from falling.

[0021] The support formed by the above technical solution is composed of a plurality of unit modules, which can effectively reduce the difficulty and construction risk of constructing a large-area concrete structure overhanging plate of a high-rise building.

[0022] The overhanging plate cable-stayed anchoring construction process for a high-rise building, wherein each unit module comprises two steel plates, each of which is provided with a mounting hole, and two layers of steel bars are fixedly installed between the two steel plates, and a plurality of reinforcing bars are welded between the two layers of steel bars, and the anchor plate on the upper part of the unit module is welded on the upper part of the upper layer of steel bars.

[0023] Each unit module designed by the above technical solution is composed of a steel plate, two layers of steel bars and a plurality of reinforcing bars, so that the entire unit module can serve as the steel bars required inside the overhanging plate, so that the support does not need to be disassembled after the overhanging plate is constructed, which not only effectively enhances the anti-fracture capability of the overhanging plate, but also greatly improves the work efficiency.

[0024] The overhanging plate cable-stayed anchoring construction process for a high-rise building, wherein the anchor plate comprises a steel base plate and a steel triangular plate, the steel base plate is welded on the upper part of the upper layer of steel bars, and the steel triangular plate is welded on the upper part of the steel base plate, and the top corner of the steel triangular plate is welded with the cable anchoring screw end.

[0025] The anchor plate composed of the above technical solution mainly comprises a steel base plate, a steel triangular plate and a cable anchoring screw end, so that the structure of the anchor plate is relatively stable, and the stability of the overhanging plate can be improved.

[0026] The overhanging plate cable-stayed anchoring construction process for a high-rise building, wherein steel triangular reinforcing bars are welded between the two side faces of the steel triangular plate and the upper part of the steel base plate.

[0027] The steel triangular reinforcing bar of the above technical solution can further improve the stability of the anchor plate structure.

[0028] The overhanging plate cable-stayed anchoring construction process for a high-rise building, wherein the middle anchoring end through bolt is made of a steel cylindrical rod with threads on the surface.

[0029] The intermediate anchoring end through bolt has simple structure and is convenient to prepare.

[0030] The high-rise building overhanging plate cable-stayed anchoring construction process has the following characteristics: the length of each anchor plate is 280-320 mm, the width is 180-220 mm, and the height is 110-150 mm.

[0031] The anchor plate meets the construction process requirements.

[0032] The high-rise building overhanging plate cable-stayed anchoring construction process has the following characteristics: the distance between the two rows of foundation bolts is 80-120 mm.

[0033] The two rows of foundation bolts meet the construction process requirements.

[0034] The high-rise building overhanging plate cable-stayed anchoring construction process has the following characteristics: the bottom of the vertical buried plate is welded with at least three steel reinforcing bars, the steel reinforcing bars are poured inside the top of the outer wall, and the bottom of the vertical buried plate and the top of the outer wall are filled with concrete.

[0035] The vertical buried plate has stable structure and meets the construction process requirements.

[0036] The high-rise building overhanging plate cable-stayed anchoring construction process has the following characteristics: the profile steel adapter column is made of a square hollow steel column, the thickness of the side wall of the profile steel adapter column is not less than 1 cm, and the side wall of the profile steel adapter column is provided with a through hole for installing the intermediate anchoring end through bolt.

[0037] The profile steel adapter column has simple structure and is convenient to prepare.

[0038] In summary, the present application mainly has the following advantages:

[0039] The high-rise building overhanging plate cable-stayed anchoring construction process uses the symmetric cable-stayed method to use the original floor or roof as one side of the tension anchoring end, and the other side is assembled with an overhanging plate support to form a high-altitude cable-stayed anchoring structure that is reasonable in stress, safe and stable, and has landscape effect, which can effectively solve the construction difficulty of the large-area concrete structure overhanging plate of a high-rise building. BRIEF DESCRIPTION OF DRAWINGS

[0040] Figure 1 Fig. 1 is a schematic diagram of the construction results of the high-rise building overhanging plate cable-stayed anchoring construction process of one embodiment;

[0041] Figure 2 Fig. 2 is a schematic diagram of the construction results of the high-rise building overhanging plate cable-stayed anchoring construction process of one embodiment;

[0042] Figure 3 Fig. 3 is a schematic diagram of the construction result of the high-rise building overhanging plate cable-stayed anchoring construction process according to an embodiment;

[0043] Figure 4 Fig. 4 is a schematic diagram of the construction result of the high-rise building overhanging plate cable-stayed anchoring construction process according to an embodiment;

[0044] Figure 5 Fig. 5 is a schematic diagram of the construction result of the high-rise building overhanging plate cable-stayed anchoring construction process according to an embodiment;

[0045] Figure 6 Fig. 6 is a schematic diagram of the construction result of the high-rise building overhanging plate cable-stayed anchoring construction process according to an embodiment;

[0046] Figure 7 Fig. 7 is a schematic diagram of the construction result of the high-rise building overhanging plate cable-stayed anchoring construction process according to an embodiment;

[0047] Figure 8 Fig. 8 is a schematic diagram of the construction result of the high-rise building overhanging plate cable-stayed anchoring construction process according to an embodiment;

[0048] Figure 9 Fig. 9 is a schematic diagram of the construction result of the high-rise building overhanging plate cable-stayed anchoring construction process according to an embodiment.

[0049] In the drawings:

[0050] 1, outer wall; 2, roof or roof; 3, overhanging plate; 4, steel wire cable; 41, steel wire rope; 42, first regular hexagonal hollow base; 43, first threaded cylinder; 44, first round piece; 45, second round piece; 46, second regular hexagonal hollow base; 47, second threaded cylinder;

[0051] 5, intermediate anchoring end through bolt; 6, forming template;

[0052] 7, support; 71, unit module; 711, steel plate; 712, steel bar; 713, reinforcing rib;

[0053] 8, anchor plate; 81, steel base plate; 82, steel triangular plate; 83, cable anchoring screw end; 84, steel triangular reinforcing rib plate;

[0054] 9, anchor bolt; 10, fastening bolt; 11, vertical embedded plate; 12, steel adapter column. DETAILED DESCRIPTION

[0055] The following will be described in detail in combination with the accompanying drawings Figures 1-8 The application will be further described in detail. Example 1

[0056] Reference Figures 1-8 The embodiment provides a high-rise building overhanging plate cable-stayed anchoring construction process, in order to solve the construction difficulty of large-area concrete structure overhanging plate of high-rise building, and specifically comprises the following steps:

[0057] Step one: determine the large-area overhanging plate cable-stayed anchoring support construction scheme of high-rise building, and make the floor or roof anchor plate 8, steel wire cable 4, intermediate anchoring end through bolt 5 or vertical embedded plate 11 and steel profile transfer column 12 welded on the vertical embedded plate 11, support 7 and forming template 6 for preparing overhanging plate 3 involved in the construction scheme;

[0058] Step two: concrete structure construction of the floor where the overhanging plate is located, embed a plurality of anchor plates 8 in the roof or roof 2, the height of the anchor plate 8 is the same as the thickness of the plate, and the upper end is exposed to the cable anchoring screw end 83, in order to meet the construction process requirements, the length of each anchor plate 8 is 280-320mm, the width is 180-220mm, and the height is 110-150mm, the intermediate anchoring end through bolt 5 is pre-buried in the outer wall 1 of the floor where the overhanging plate 3 is located or the vertical embedded plate 11 is pre-buried in the top of the outer wall 1, two rows of foundation bolts 9 are pre-buried on the outer side of the outer wall 1 at the height of the overhanging plate 3, in order to meet the construction process requirements, the distance between the two rows of foundation bolts 9 is set to 80-120mm, the steel bars of the floor or roof where the overhanging plate 3 is located are strengthened according to the fact that the upper and lower surfaces of the overhanging plate 3 are subjected to tension, and the concrete pouring and curing of the floor where the overhanging plate 3 is located are completed;

[0059] Step three: after the concrete strength of the overhanging plate 3 reaches 85% of the design strength;

[0060] For ordinary floor overhanging plate, preset a through hole in the upper outer wall of the overhanging plate 3, and anchor the intermediate anchoring end through bolt 5 at the through hole position;

[0061] For roof overhanging plate, install steel profile transfer column 12 at the preset vertical embedded plate 11 at the top of the outer wall, and fix the intermediate anchoring end through bolt 5 on the steel profile transfer column 12;

[0062] Step four: one end of the steel wire cable 4 constructed in advance is anchored on the cable anchoring screw end 83 of the pre-buried anchor plate 8 exposed on the floor or roof, the other end is anchored on one end of the intermediate anchoring end through bolt 5 on the same side, and then the steel wire cable 4 for pulling the support 7 is symmetrically installed on the other end of the intermediate anchoring end through bolt 5;

[0063] Step five: hoist the prefabricated support 7, weld a plurality of anchor plates 8 on the upper part of the support 7, hoist the support 7, and place one end of the support 7 close to the outer wall 1 and connect it with the foundation bolt 9 pre-buried in the outer wall 1, then connect the other end of the steel wire cable 4 for pulling the support 7 in step four away from the intermediate anchoring end through bolt 5 on the cable anchoring screw end 83 of the anchor plate 8 on the upper part of the support 7;

[0064] Step six: pre-pressing the support 7 to eliminate deformation and adjusting the fastening force through the steel wire cable 4 to achieve the stability of the support 7, then installing the forming template 6 outside the support 7, and ensuring that the forming template 6 meets the template accuracy requirements, and then pouring the cantilever slab 3 concrete;

[0065] Step seven: after the cantilever slab 3 concrete strength meets the requirements,

[0066] For ordinary floor cantilever slab, remove the forming template 6 outside the cantilever slab 3, the steel wire cable 4 and the middle anchoring end through bolt 5;

[0067] For high-rise building roof cantilever slab, remove the forming template 6, keep the middle anchoring end through bolt 5 and the steel wire cable 4, form a symmetrical cable-stayed anchoring structure on the high-rise building roof, enhance the wind uplift resistance of the cantilever slab 3 and form a certain modeling landscape effect.

[0068] The high-rise building cantilever slab cable-stayed anchoring construction process uses the above technical scheme, uses the symmetrical cable-stayed method on the original floor or roof as one side of the tension anchoring end, and the other side of the assembled cantilever slab support forms a high-altitude cable-stayed anchoring structure that is reasonable in stress, safe and stable, and has landscape effect, which can effectively solve the construction difficulty of large-area cantilever slab of high-rise building concrete structure.

[0069] Referring to Figure 1 and 6 In order to prevent the unit module 71 from falling after installation, the support 7 includes a plurality of unit modules 71, and the specific hoisting operation method of the support 7 is as follows:

[0070] One of the unit modules 71 is hoisted, and one end of the hoisted unit module 71 is close to the position of the outer wall 1 and is threadedly connected with the embedded anchor bolt 9 of the outer wall 1, and then the remaining unit modules 71 are fastened or welded to the end of the unit module 71 away from the anchor bolt 9, and whenever a unit module 71 is installed, the steel wire cable 4 outside the outer wall 1 is connected to the cable anchoring screw end 83 of the anchor plate 8 on the upper part of the corresponding unit module 71, and then the hoisting equipment is removed to prevent the unit module 71 from falling after installation. The hoisting operation method can effectively reduce the difficulty and construction risk of constructing large-area cantilever slab of high-rise building concrete structure.

[0071] In order to effectively enhance the fracture resistance of the cantilever plate 3, while greatly improving the work efficiency, each unit module 71 is provided with two steel plates 711, mounting holes are formed on each steel plate 711, and two layers of steel bars 712 are fixedly installed between the two steel plates 711, a plurality of reinforcing bars 713 are welded between the two layers of steel bars 712, and the anchor plate 8 at the upper part of the unit module 71 is welded to the upper part of the upper layer of steel bars 712. Each unit module 71 is composed of the steel plate 711, the two layers of steel bars 712 and the plurality of reinforcing bars 713, so that the entire unit module 71 can serve as the steel bar required inside the cantilever plate 3. After the cantilever plate 3 is constructed, the support 7 does not need to be disassembled, which not only effectively enhances the fracture resistance of the cantilever plate 3, but also greatly improves the work efficiency.

[0072] With reference to Figure 1 And 6 -7, in order to make the structure of the anchor plate 8 more stable and improve the stability of the cantilever plate 3, the anchor plate 8 is provided with a steel bottom plate 81 and a steel triangular plate 82, the steel bottom plate 81 is welded to the upper part of the upper layer of steel bars 712, the steel triangular plate 82 is welded to the upper part of the steel bottom plate 81 perpendicularly, and the top corner of the steel triangular plate 82 is welded with a cable anchoring screw end 83. The anchor plate 8 is mainly composed of the steel bottom plate 81, the steel triangular plate 82 and the cable anchoring screw end 83, so that the structure of the anchor plate 8 is more stable and the stability of the cantilever plate 3 can be improved.

[0073] In order to further improve the stability of the structure of the anchor plate 8, steel triangular reinforcing rib plates 84 are welded between the two side faces of the steel triangular plate 82 and the upper part of the steel bottom plate 81. The steel triangular reinforcing rib plates 84 can further improve the stability of the structure of the anchor plate 8.

[0074] With reference to Figure 7 In order to facilitate the preparation of the intermediate anchoring end-through bolt 5, the intermediate anchoring end-through bolt 5 is made of a steel cylindrical rod with threads on the surface. The intermediate anchoring end-through bolt 5 has a simple structure and is easy to prepare.

[0075] With reference to Figure 8 In order to improve the structural stability of the vertical embedded plate 11, at least three steel reinforcing bars are welded to the bottom of the vertical embedded plate 11, the steel reinforcing bars are poured into the top of the outer wall 1, and the bottom of the vertical embedded plate 11 and the top of the outer wall 1 are filled with concrete. The vertical embedded plate 11 has a stable structure and can meet the construction process requirements.

[0076] With reference to Figure 8In order to facilitate the preparation of the steel adapter column 12, the steel adapter column 12 is made of a square hollow steel column, and the thickness of the side wall of the steel adapter column 12 is not less than 1 cm. In order to facilitate the installation of the steel adapter column 12, a through hole for installing the intermediate anchoring end through bolt 5 is formed in the side wall of the steel adapter column 12. The steel adapter column 12 is simple in structure and convenient to prepare. The intermediate anchoring end through bolt 5 is welded in the through hole, and the two ends of the intermediate anchoring end through bolt 5 are exposed. Embodiment 2

[0077] Referring to Figure 7 The high-rise building cantilever plate cable-stayed anchoring construction process provided in the embodiment is different from that of embodiment 1 in that:

[0078] The steel wire cable 4 comprises a steel wire rope 41. One end of the steel wire rope 41 is fixedly installed with a first circular plate 44, and the other end of the steel wire rope 41 is fixedly installed with a second circular plate 45. Wherein:

[0079] The first circular plate 44 is externally rotatably sleeved with a first regular hexagonal hollow base 42. The first regular hexagonal hollow base 42 is fixedly installed with a first threaded cylinder 43 at an end away from the steel wire rope 41. The first threaded cylinder 43 is threadedly sleeved at one end of the intermediate anchoring end through bolt 5.

[0080] The second circular plate 45 is externally rotatably sleeved with a second regular hexagonal hollow base 46. The second regular hexagonal hollow base 46 is fixedly installed with a second threaded cylinder 47 at an end away from the steel wire rope 41. The second threaded cylinder 47 is threadedly sleeved on the cable anchoring screw rod end 83.

[0081] The first threaded cylinder 43 and the second threaded cylinder 47 at both ends of the steel wire cable 4 can be rotated by adopting the above technical solution. At the same time, the first regular hexagonal hollow base 42 and the second regular hexagonal hollow base 46 are arranged, so that the first threaded cylinder 43 and the second threaded cylinder 47 are convenient to connect with the intermediate anchoring end through bolt 5 and the cable anchoring screw rod end 83 through a wrench. The construction difficulty can be reduced and the construction efficiency can be improved. It is particularly important that the tension degree of the steel wire rope 41 can be adjusted conveniently. The construction precision requirement of the anchor plate 8 can be reduced, and the construction demand can be met.

[0082] In order to ensure the stability of the steel wire cable 4, the first circular plate 44, the second circular plate 45, the first regular hexagonal hollow base 42, the first threaded cylinder 43, the second regular hexagonal hollow base 46 and the second threaded cylinder 47 are all made of stainless steel material.

[0083] It is worth noting that: Figure 9 As shown in the figure, there are many groups of the cantilever plate 3 and the steel wire cable 4 on the construction site. In order to facilitate clear description, only one group is listed in the specification.

[0084] In conclusion, the high-rise building overhanging plate cable-stayed anchoring construction process, high-rise building overhanging plate cable-stayed anchoring construction process, using symmetrical cable-stayed mode in the original floor or roof as a side tension anchoring end, the other side assembly overhanging plate support, form reasonable stress, safe and stable with landscape effect of high altitude cable-stayed anchoring structure, can effectively solve the construction difficulty of high-rise building large area concrete structure overhanging plate.

[0085] The part not involved in the present application is the same as the prior art or can be realized by using the prior art. The specific embodiments are only an explanation of the present application, and are not a limitation of the present application. Those skilled in the art can make modifications to the embodiments without creative contribution after reading the specification, as long as the modifications are within the scope of the claims of the present application.

Claims

1. A high-rise building overhanging plate cable-stayed anchoring construction process, characterized in that: Comprise the following steps: Step one: determine the large area of high-rise building cantilever plate cable anchor support construction scheme, the construction scheme of the floor or roof anchor plate (8), steel wire cable (4), intermediate anchor end through bolt (5) or vertical embedded plate (11) and on the vertical embedded plate (11) welded steel transfer column (12), for preparing the cantilever plate (3) support (7) and forming template (6); Step two: the concrete structure construction of the floor where the cantilever plate is located, bury a plurality of anchor plates (8) on the roof or roof (2), the height of the anchor plate (8) is the same as the thickness of the plate, and the upper end is exposed from the cable anchor screw end (83), the intermediate anchor end through bolt (5) is pre-buried in the outer wall (1) of the floor, or the vertical embedded plate (11) is pre-buried on the top of the outer wall (1), two rows of anchor bolts (9) are pre-buried on the outer side of the outer wall (1) at the height of the cantilever plate (3), the reinforcement of the floor or roof of the floor where the cantilever plate (3) is located is strengthened according to the tension on the upper and lower surfaces of the cantilever plate (3), and the concrete pouring and curing of the floor where the cantilever plate (3) is located is completed; Step three: after the concrete strength of the cantilever plate (3) reaches 85% of the design strength; For ordinary floor cantilever plate, preset through hole on the upper outer wall of the cantilever plate (3), and anchor the intermediate anchor end through bolt (5) at the through hole position; For roof cantilever plate, install steel transfer column (12) at vertical embedded plate (11) on the top of the outer wall, and fix the intermediate anchor end through bolt (5) on the steel transfer column (12); Step four: one end of the steel wire cable (4) constructed in advance is anchored on the cable anchor screw end (83) of the pre-buried anchor plate (8) exposed on the floor or roof, the other end is anchored on one end of the intermediate anchor end through bolt (5) on the same side, and then the steel wire cable (4) for pulling the support (7) is symmetrically installed on the other end of the intermediate anchor end through bolt (5); Step five: hoist the prefabricated support (7), weld a plurality of anchor plates (8) on the upper part of the support (7), hoist the support (7), and connect one end of the support (7) close to the outer wall (1) to the anchor bolt (9) pre-buried in the outer wall (1), then connect the other end of the steel wire cable (4) for pulling the support (7) in step four to the cable anchor screw end (83) of the anchor plate (8) on the upper part of the support (7); Step six: pre-press the support (7) to eliminate deformation and adjust the tightness of the steel wire cable (4) to make the support (7) stable and flat, then install the forming template (6) on the outer side of the support (7), and ensure that the forming template (6) meets the template accuracy requirements, then pour the cantilever plate (3) concrete; Step seven: after the concrete strength of the cantilever plate (3) meets the requirements; For ordinary floor cantilever plate, remove the forming template (6), steel wire cable (4) and intermediate anchor end through bolt (5) outside the cantilever plate (3); For high-rise building roof overhanging plate demolition forming template (6), the middle anchoring end through bolt (5) and steel wire cable (4) are reserved, a symmetric cable-stayed anchoring structure is formed on the high-rise building roof, the wind lifting resistance of the overhanging plate (3) is enhanced, and certain modeling landscape effect is formed.

2. The construction process for the high-rise building overhanging plate cable-stayed anchoring according to claim 1, characterized in that: The support (7) comprises a plurality of unit modules (71), and the specific hoisting operation method of the support (7) is as follows: One of the unit modules (71) is hoisted, and one end of the hoisted unit module (71) is close to the position of the outer wall (1) and is threadedly connected with the embedded anchor bolt (9) of the outer wall (1), then the remaining unit modules (71) are fastened or welded to one end of the already installed unit module (71) away from the anchor bolt (9) through fastening bolts (10), whenever one unit module (71) is installed, the steel wire cable (4) located outside the outer wall (1) is connected to the cable anchoring screw end (83) of the anchor plate (8) on the upper part of the corresponding unit module (71), and then the hoisting equipment is removed, so as to prevent the installed unit module (71) from falling.

3. The construction process for the high-rise building overhanging plate cable-stayed anchoring according to claim 2, characterized in that: Each unit module (71) comprises two steel plates (711), mounting holes are formed in each steel plate (711), and two layers of steel bars (712) are fixedly installed between the two steel plates (711), a plurality of reinforcing bars (713) are welded between the two layers of steel bars (712), and the anchor plate (8) on the upper part of the unit module (71) is welded to the upper part of the upper layer of steel bars (712).

4. The construction process for the high-rise building overhanging plate cable-stayed anchoring according to claim 3, characterized in that: The anchor plate (8) comprises a steel bottom plate (81) and a steel triangular plate (82), the steel bottom plate (81) is welded to the upper part of the upper layer of steel bars (712), and the steel triangular plate (82) is welded to the upper part of the steel bottom plate (81) perpendicularly, and the top corner of the steel triangular plate (82) is welded with the cable anchoring screw end (83).

5. The construction process for the high-rise building overhanging plate cable-stayed anchoring according to claim 4, characterized in that: Steel triangular reinforcing rib plates (84) are welded between the two side faces of the steel triangular plate (82) and the upper part of the steel bottom plate (81).

6. The construction process for the high-rise building overhanging plate cable-stayed anchoring according to claim 1, characterized in that: The middle anchoring end through bolt (5) is made of a steel cylindrical rod with threads on the surface.

7. The construction process for the high-rise building overhanging plate cable-stayed anchoring according to claim 1, characterized in that: The length of each anchor plate (8) is 280-320mm, the width is 180-220mm, and the height is 110-150mm.

8. The construction process for the high-rise building overhanging plate cable-stayed anchoring according to claim 1, characterized in that: The distance between the two rows of anchor bolts (9) is 80-120mm.

9. The construction process for the high-rise building overhanging plate cable-stayed anchoring according to claim 1, characterized in that: At least three steel reinforcing bars are welded to the bottom of the vertical embedded plate (11), the steel reinforcing bars are poured into the inside of the top of the outer wall (1), and the bottom of the vertical embedded plate (11) and the top of the outer wall (1) are filled with concrete.

10. The construction process for the high-rise building overhanging plate cable-stayed anchoring according to claim 1, characterized in that: The profile steel adapter column (12) is made of a square hollow steel column, the thickness of the side wall of the profile steel adapter column (12) is not less than 1cm, and a through hole for installing the middle anchoring end through bolt (5) is formed in the side wall of the profile steel adapter column (12).

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