Double-layer towering curtain wall structure for cantilever structure

Abstract

The utility model relates to the technical field of building curtain walls, in particular to a double-layer towering curtain wall structure for a cantilever structure, which comprises a towering curtain wall arranged on the outer side of the cantilever structure, the bottom of the towering curtain wall is connected with the cantilever structure, and the top of the towering curtain wall penetrates through a large roof of the cantilever structure. The high-rise-shaped curtain wall extends to the position above the small roof of the cantilever structure and is connected with the small roof through a curtain wall supporting rod. The towering modeling curtain wall is arranged on the outer side of the cantilever structure, on one hand, the bottom of the towering modeling curtain wall is stably connected with the cantilever structure through the cantilever truss, on the other hand, the upper portion, exceeding the small roof, of the towering modeling curtain wall is connected with the small roof through the curtain wall supporting rod, and the height requirement of the towering modeling curtain wall can be met; and meanwhile, the towering modeling curtain wall can be stably and reliably connected and supported, so that the modeling of the part, exceeding the large roof, of the towering modeling curtain wall is richer, and the design requirement and the installation requirement of the towering modeling curtain wall are met.

Description

Technical Field

[0001] The utility model relates to the technical field of building curtain walls, in particular to a double-layer high-rise curtain wall structure for a cantilever structure. Background Art

[0002] In order to separate the indoor and outdoor spaces of a building and realize the architectural shape, the curtain wall forms generally used in buildings include maintenance curtain walls and shaping curtain walls.

[0003] Conventional curtain wall structures are generally independent of the main structure and are arranged along the four sides of the building. For example, the Chinese invention patent application with application number 202310135574.9 provides a curtain wall design structure based on a red brick style. The installation of the red brick retro curtain wall is completed by inserting the red brick decorative parts into the first groove of the base foundation plate.

[0004] However, with the development of the times, the shapes of shaped curtain walls are becoming more and more diversified, requiring buildings to have higher cantilevers and a spatial curved appearance. The shaped curtain walls extend from the bottom to the top of the roof along the facade of the building to form a towering curtain wall. The structure of conventional shaped curtain walls cannot meet the current installation requirements of towering shaped curtain walls. Utility Model Content

[0005] The purpose of the utility model is to provide a double-layer high-rise curtain wall structure for a cantilever structure, so as to solve the technical problem that the existing shaped curtain wall structure cannot meet the installation requirements of the high-rise curtain wall.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A double-layer high-rise curtain wall structure for a cantilever structure is characterized in that it includes a high-rise shaped curtain wall arranged on the outside of the cantilever structure, the bottom of the high-rise shaped curtain wall is connected to the cantilever structure, the top of the high-rise shaped curtain wall passes through the large roof of the cantilever structure and extends above the small roof of the cantilever structure, and the high-rise shaped curtain wall is connected to the small roof through curtain wall support rods.

[0008] It is further defined that the towering shaped curtain wall includes an outer shaped curtain wall and a roof shaped curtain wall located above the outer shaped curtain wall;

[0009] The outer shaped curtain wall is connected to the cantilever structure through a steel corbel. The outer shaped curtain wall is located below the large roof. The bottom end of the roof shaped curtain wall is movably connected to the steel corbel or the top of the cantilever structure. The upper part of the roof shaped curtain wall is connected to the small roof through a curtain wall support rod.

[0010] It is further defined that the bottom of the roof-shaped curtain wall is movably connected to the steel corbel or cantilever structure through a curtain wall support.

[0011] It is further defined that the curtain wall support is a spherical joint support.

[0012] It is further defined that the double-layer high-rise curtain wall structure for the cantilever structure also includes a maintenance curtain wall, which is located between the cantilever truss and the outer molding curtain wall, and the maintenance curtain wall is connected to the cantilever truss.

[0013] It is further defined that the roof-shaped curtain wall includes a plurality of towering curtain wall units connected in sequence according to the shape of the roof-shaped curtain wall, the number of the curtain wall supports and the number of the curtain wall struts are both multiple, and the multiple curtain wall supports are evenly arranged along the bottom of the roof-shaped curtain wall, and the curtain wall supports and the curtain wall struts are arranged in a one-to-one correspondence.

[0014] It is further defined that the towering curtain wall unit includes vertical trusses, horizontal trusses and conversion trusses, the number of the vertical trusses and the number of the horizontal trusses are both multiple, the multiple vertical trusses are arranged at intervals along the shaping structure, the horizontal trusses are located between two adjacent vertical trusses, the multiple horizontal trusses are arranged at intervals along the height direction of the vertical trusses, the bottoms of the multiple vertical trusses are connected to the curtain wall supports through conversion trusses, and the curtain wall support rods are connected to any vertical truss.

[0015] It is further defined that the vertical truss includes a vertical truss chord, a vertical truss vertical web and a vertical truss diagonal web;

[0016] The number of the vertical truss chords is two, and the two vertical truss chords are arranged on opposite sides of the horizontal truss along the width direction of the horizontal truss. The number of the vertical truss vertical webs is multiple, and the multiple vertical truss vertical webs are arranged at intervals along the height direction of the vertical truss chords. The vertical truss diagonal web is arranged between two adjacent vertical truss vertical webs.

[0017] It is further defined that the horizontal truss includes a horizontal truss chord, a horizontal truss vertical web and a horizontal truss diagonal web;

[0018] There are two horizontal truss chords, and the two horizontal truss chords are arranged at opposite ends of the vertical truss vertical webs. The horizontal truss vertical webs and the horizontal truss diagonal webs are both arranged between the two horizontal truss chords, and the horizontal truss diagonal webs are connected to the vertical truss chords.

[0019] It is further defined that the towering curtain wall unit also includes a horizontal tie rod, and the number of the horizontal tie rods is multiple, and the multiple horizontal tie rods are arranged at intervals along the height direction of the vertical trusses, and the horizontal tie rods are arranged between two adjacent horizontal trusses.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. The utility model arranges the towering curtain wall on the outside of the cantilever structure. On the one hand, the cantilever truss is used to stably connect the bottom of the towering curtain wall with the cantilever structure. On the other hand, the upper part of the towering curtain wall exceeding the small roof is connected to the small roof through the curtain wall support rod. It can not only meet the height requirements of the towering curtain wall, but also stably and reliably connect and support the towering curtain wall, making the shape of the towering curtain wall exceeding the large roof more diverse, meeting the design and installation requirements of the towering curtain wall.

[0022] 2. This utility model satisfies the building facade modeling effect through the outer modeling curtain wall, and satisfies the modeling requirements above the building through the roof modeling curtain wall; at the same time, the roof modeling curtain wall is connected to the cantilever structure by using the curtain wall support, providing stable support for the roof modeling curtain wall, and further ensuring the installation stability and reliability of the towering modeling curtain wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the roof curtain wall structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the installation of a double-layer high-rise curtain wall structure for a cantilever structure of the utility model;

[0025] Figure 3 This is a schematic diagram of the connection of the maintenance curtain wall of this utility model;

[0026] Figure 4 This is a schematic diagram of the high-rise curtain wall unit structure of the utility model;

[0027] In the figure: 10-cantilever structure; 11-floor beam; 12-frame column; 20-towering curtain wall; 21-exterior curtain wall; 22-roof curtain wall; 30-cantilever truss; 40-curtain wall support rod; 50-towering curtain wall unit; 51-vertical truss; 51a-vertical truss chord; 51b-vertical truss vertical web; 51c-vertical truss diagonal web; 52-horizontal truss; 52a-horizontal truss chord; 52b-horizontal truss vertical web; 52c-horizontal truss diagonal web; 53-transformation truss; 53a-transformation truss diagonal web; 54-horizontal tie rod; 60-curtain wall support; 70-maintenance curtain wall. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0029] The existing building curtain wall forms mainly include maintenance curtain wall and shaping curtain wall. The function of maintenance curtain wall is to separate indoor and outdoor spaces, and the function of shaping curtain wall is to realize architectural shaping.

[0030] Maintenance curtain walls are usually attached to the main structure and arranged along the perimeter of the building. The curtain wall structure is relatively easy to implement. For some super-high-rise buildings and large-scale, spatially irregular public buildings, the shaped curtain walls are usually simple in structure and low in height. However, in order to improve the beauty of the building, the appearance of the shaped curtain walls is more varied and the height is also higher. When the height of the shaped curtain wall exceeds the large roof and the small roof, the shaped curtain wall cannot provide stable support and connection for it according to the existing installation method. Therefore, the existing shaped curtain wall structure cannot meet the actual shaped curtain wall installation needs.

[0031] Among them, the big roof is the top of the cantilevered structure, and the floors above the big roof are small roofs.

[0032] Example 1

[0033] refer to Figure 1 This embodiment provides a double-layer high-rise curtain wall structure for a cantilever structure, including a high-rise curtain wall 20 arranged on the cantilever structure 10, the bottom of the high-rise curtain wall 20 is connected to the cantilever structure 10, and the top of the high-rise curtain wall 20 extends through the large roof to above the small roof, and the small roof is connected to the upper part of the high-rise curtain wall 20 through the curtain wall support rod 40.

[0034] The cantilever structure 10 is used to stably connect the bottom of the towering curtain wall 20, and the curtain wall support rod 40 is used to provide support or tensioning force for the towering curtain wall 20, thereby achieving a stable connection between the towering curtain wall 20 and the cantilever structure 10, meeting the installation requirements of the towering curtain wall 20.

[0035] At the same time, the top of the towering curtain wall 20 can be extended to the top of the small house roof, which can meet the height design requirements and shape design requirements of the towering curtain wall 20.

[0036] Specifically, the lower part of the towering curtain wall 20 is located on the peripheral side of the cantilever structure 10 to meet the building facade shaping effect. Therefore, the thickness of the bottom of the towering curtain wall 20 is relatively thin; while the upper part of the towering curtain wall 20 protrudes higher from the large roof and presents an architectural shape, and is relatively thick, which makes the thickness of the towering curtain wall 20 inconsistent. At this time, the vertical bearing capacity of the towering curtain wall 20 at the large roof is discontinuous. Therefore, it is chosen to disconnect the towering curtain wall 20 at the large roof to adapt to its stress characteristics and improve the stability and reliability of the connection.

[0037] That is, the towering shaped curtain wall 20 includes an outer shaped curtain wall 21 and a roof shaped curtain wall 22. The outer shaped curtain wall 21 is arranged on the surrounding side of the cantilever structure 10 to provide a facade shaped effect for the building. The outer shaped curtain wall 21 is located below the large roof. The outer shaped curtain wall 21 is connected to the cantilever structure 10 through a steel corbel.

[0038] The roof-shaped curtain wall 22 is continuous with the outer-shaped curtain wall 21 in spatial shape. The roof-shaped curtain wall 22 is a spatial two-way curved surface located on the large roof, and the height of the roof-shaped curtain wall 22 is not fixed, which meets the actual design requirements. The upper part of the roof-shaped curtain wall 22 is connected to the small roof through the curtain wall support rod 40. Both sides of the roof-shaped curtain wall 22 are outdoor spaces, and there are two situations of outward and inward inclination relative to the building boundary. Therefore, in addition to its own weight, the roof-shaped curtain wall 22 is subjected to wind loads superimposed by "wind blowing" on the windward side and "wind sucking" on the leeward side. The resultant wind load is large, and is affected by the uncertainty of the direction of the wind load. Therefore, the curtain wall support rod 40 is in two stress states of tension and compression.

[0039] Therefore, it is preferred that the curtain wall support rod 40 can be selected as a herringbone structure, the top of the curtain wall support rod 40 is connected to the small roof, and the bottom ends of the curtain wall support rod 40 are connected to the roof-shaped curtain wall 22. The curtain wall support rod 40 can be selected as a round steel pipe. At this time, the curtain wall support rod 40 can withstand both tension and pressure, and the herringbone arrangement provides two connection fulcrums for the roof-shaped curtain wall 22 in the vertical direction, which can effectively reduce the thickness of the roof-shaped curtain wall 22.

[0040] The curtain wall support rods 40 are respectively connected to the roof molding curtain wall 22 and the cantilever structure 10 by adopting pin connections to release the bending moment of the rod ends of the curtain wall support rods 40 .

[0041] The bottom of the roof-shaped curtain wall 22 is connected to the main roof through a curtain wall support 60. The curtain wall support 60 is located on the main roof or connected to the main roof through a steel corbel. It is used to provide reliable vertical support for the roof-shaped curtain wall 22 to ensure the connection stability and reliability of the roof-shaped curtain wall 22. The curtain wall support 60 can be selected as a spherical joint support.

[0042] To further illustrate, a cantilever structure 10 is provided in the cantilever structure 10, and the cantilever truss 30 serves as the main vertical load-bearing member, which not only bears part of the floor load of the cantilever structure 10, but also serves as a vertical load-bearing member of the roof curtain wall 22, so that the towering curtain wall structure system can be established.

[0043] Among them, the cantilever truss 30 is composed of multiple diagonal braces arranged in the cantilever structure 10, and the cantilever structure 10 is composed of multiple floor beams 11 and multiple frame columns 12. The floor beams 11 are all arranged horizontally and are spaced apart in the vertical direction; the frame columns 12 are all arranged vertically and are arranged in an array. The frame columns 12 are used to connect the floor beams 11 arranged above and below; the outermost frame columns 12 follow the architectural design. For example, when the outermost side of the building is inclined, the outermost frame columns 12 are arranged in the same direction as the corresponding end face of the outer side of the building. The diagonal braces are cross-connected between adjacent floor beams 11 and adjacent frame columns 12 to form the cantilever truss 30, which provides the required vertical bearing capacity and rigidity for the cantilevered part of the building and the towering curtain wall on the roof; the upper part of the cantilever truss 30 is the large roof, and some frame columns 12 extend above the large roof and are connected to the corresponding floor beams 11. At this time, the small roof is located above the floor beam 11.

[0044] A steel corbel is provided at the outermost end of the top floor beam of the cantilever truss 30 to extend outward from the outermost frame column, that is, the end of the top floor beam of the cantilever truss 30 extends to the outside of the outermost frame column, and the curtain wall support 60 is directly provided on the top of the outermost frame column, or the curtain wall support 60 is provided at the end of the steel corbel on the outer side of the top floor beam of the cantilever truss 30. In this case, the curtain wall support 60 is provided on the large roof.

[0045] For further explanation, see Figure 2 The shape of the roof-shaped curtain wall 22 on the large roof is determined according to the design. The height of the roof-shaped curtain wall 22 is generally 10m, and can reach a maximum of 24m in implementation. The shape of the roof-shaped curtain wall 22 is a spatial two-way curved surface structure.

[0046] For further explanation, see Figure 3 The double-layer high-rise curtain wall structure for the cantilever structure provided in this embodiment also includes a maintenance curtain wall 70, which is located between the outer modeling curtain wall 21 and the cantilever truss 30; specifically, the maintenance curtain wall 70 is directly connected to the outermost frame column and the floor beam 80 perpendicular to the outermost frame column, and the outer modeling curtain wall 21 is located on the outer side of the maintenance curtain wall 70, and the outer modeling curtain wall 21 is connected to the corresponding floor beam 11 through a steel corbel.

[0047] Example 2

[0048] refer to Figure 1 and Figure 4 , further explained, the roof-shaped curtain wall 22 provided in this embodiment includes a plurality of towering curtain wall units 50, and the plurality of towering curtain wall units 50 are connected in sequence according to the shape of the roof-shaped curtain wall 22.

[0049] Correspondingly, the number of curtain wall supports 60 and the number of curtain wall struts 40 are both multiple, and multiple curtain wall supports 60 are evenly arranged on the large roof along the roof-shaped curtain wall 22. The distance between two adjacent curtain wall supports 60 does not exceed 15m, and the positions of the curtain wall struts 40 and the curtain wall supports 60 correspond one to one.

[0050] The towering curtain wall unit 50 includes a vertical truss 51, a horizontal truss 52 and a conversion truss 53. The horizontal truss 52 is connected to the vertical truss 51. The conversion truss 53 is arranged at the bottom of the vertical truss 51. The vertical truss 51 is connected to the curtain wall support 60 through the conversion truss 53. The curtain wall support rod 40 is connected to the vertical truss 51.

[0051] The vertical trusses 51 bear the wind load and the load transmitted from the horizontal trusses 52; take the example of setting two curtain wall supports 60 in three consecutive tall curtain wall units 50. At this time, the tall curtain wall unit 50 in the middle is connected to the adjacent tall curtain wall unit 50. At this time, the distance between the two curtain wall supports 60 is 12m, and the curtain wall support rods 40 are set above the curtain wall supports 60.

[0052] There are multiple vertical trusses 51. Taking three as an example, the three vertical trusses 51 are arranged in sequence along the roof curtain wall 22. Preferably, the spacing between two adjacent vertical trusses 51 is equal, and the spacing between two adjacent vertical trusses 51 is 2m to 4m, preferably 3m.

[0053] At this time, it is preferred that the curtain wall support 60 is disposed below the vertical truss 51 located in the middle, and the curtain wall support rod 40 is connected to the vertical truss 51 .

[0054] The number of horizontal trusses 52 is at least two, and the number of horizontal trusses 52 is determined according to the height of the vertical trusses 51; when the number of horizontal trusses 52 is two, the two horizontal trusses 52 are respectively connected to the upper and lower ends of the vertical truss 51; when the number of horizontal trusses 52 is multiple, the multiple horizontal trusses 52 are connected at intervals along the height direction of the vertical truss 51.

[0055] Preferably, the tall curtain wall unit 50 also includes a horizontal tie rod 54, which is connected to the three vertical trusses 51 in sequence along the horizontal direction. The horizontal tie rod 54 is located between the upper and lower adjacent horizontal trusses 52. Horizontal tie rods 54 are provided on the front and rear sides of the vertical truss 51. Multiple horizontal tie rods 54 can be optionally provided between the upper and lower adjacent horizontal trusses 52. Therefore, the vertical truss 51 is also subjected to the load transmitted by the horizontal tie rod 54.

[0056] The spacing between two adjacent horizontal trusses 52 is no more than 6 m, the spacing between two adjacent horizontal tie rods 54 is no more than 1.5 m, and the spacing between two adjacent horizontal trusses 52 and horizontal tie rods 54 is no more than 1.5 m.

[0057] The conversion truss 53 can be optionally composed of multiple conversion truss diagonal members 53a, preferably four. One end of the four conversion truss diagonal members 53a is connected to the bottom end of the middle vertical truss 51, and the bottom end of the middle vertical truss 51 is connected to the curtain wall support 60. The other ends of the four conversion truss diagonal members 53a are connected to the four end corners of the bottom horizontal truss. A horizontal tie rod 54 is set at the bottom of the conversion truss diagonal member 53a, and the conversion truss diagonal member 53a is located between the vertical trusses 51 on both sides.

[0058] To further illustrate, the vertical truss 51 includes a vertical truss chord 51 a , a vertical truss vertical web 51 b , and a vertical truss diagonal web 51 c .

[0059] There are two vertical truss chords 51a, which are arranged on the front and rear sides of the horizontal truss 52 in the width direction to determine the thickness of the roof curtain wall 22. The horizontal truss 52 is connected between the front and rear vertical truss chords 51a.

[0060] There are multiple vertical truss web members 51b, and the multiple vertical truss web members 51b are arranged at intervals along the height direction of the vertical truss chord 51a. The vertical truss web members 51b are arranged between two vertical truss chords 51a. Preferably, the vertical truss web members 51b correspond one-to-one to the horizontal truss 52, so that the vertical truss web members 51b are located at the side ends and the middle position of the horizontal truss 52.

[0061] There are multiple vertical truss diagonal web members 51c, each of which is connected between two upper and lower adjacent vertical truss vertical web members 51b. The vertical truss vertical web members 51b are tilted, and the tilt directions of the two upper and lower adjacent vertical truss vertical web members 51b are opposite.

[0062] To further illustrate, the horizontal truss 52 includes a horizontal truss chord 52a, a horizontal truss vertical web 52b, and a horizontal truss diagonal web 52c.

[0063] There are two horizontal truss chords 52a, and the two horizontal truss chords 52a are respectively connected to the corresponding vertical truss chords 51a; the horizontal truss vertical web 52b is arranged between the two horizontal truss chords 52a, and preferably the horizontal truss vertical web 52b is vertically connected to the horizontal truss chord 52a; the horizontal truss diagonal web 52c is connected between the two horizontal truss chords 52a, and the horizontal truss diagonal web 52c is arranged at an angle.

[0064] Preferably, the number of horizontal truss vertical web members 52b is two, and the two horizontal truss vertical web members 52b are respectively located in the middle position of the two adjacent vertical truss chord members 51a. The number of horizontal truss diagonal web members 52c is preferably four, and the four horizontal truss diagonal web members 52c are respectively arranged on both sides of the two horizontal truss vertical web members 52b, and the two horizontal truss diagonal web members 52c are symmetrically arranged about the corresponding vertical truss vertical web members 51b.

[0065] The roof curtain wall 22 is made of overlapping steel round tubes. The vertical trusses 51, horizontal trusses 52, conversion trusses 53 and horizontal tie rods 54 are welded together. The isotropic stress characteristics of each component are utilized to adapt to the complex stress in the spatial structure, facilitate production and connection, reduce construction difficulty, and improve construction efficiency.

[0066] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0067] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-layer high-rise curtain wall structure for a cantilever structure, characterized in that: The invention comprises a high-rise shaped curtain wall (20) arranged on the outside of the cantilever structure (10), wherein the bottom of the high-rise shaped curtain wall (20) is connected to the cantilever structure (10), the top of the high-rise shaped curtain wall (20) passes through the large roof of the cantilever structure (10) and extends to above the small roof of the cantilever structure (10), and the high-rise shaped curtain wall (20) is connected to the small roof via a curtain wall support rod (40).

2. The double-layer high-rise curtain wall structure for cantilever structure according to claim 1 is characterized in that: The towering molding curtain wall (20) comprises an outer molding curtain wall (21) and a roof molding curtain wall (22) located above the outer molding curtain wall (21); The outer molding curtain wall (21) is connected to the cantilever structure (10) through a steel corbel, and the outer molding curtain wall (21) is located below the large roof. The bottom end of the roof molding curtain wall (22) is movably connected to the steel corbel or the top of the cantilever structure (10), and the upper part of the roof molding curtain wall (22) is connected to the small roof through a curtain wall support rod (40).

3. The double-layer high-rise curtain wall structure for cantilever structure according to claim 2, characterized in that: The bottom of the roof-shaped curtain wall (22) is movably connected to the steel corbel or cantilever structure (10) through a curtain wall support (60).

4. The double-layer high-rise curtain wall structure for cantilever structure according to claim 3 is characterized in that: The curtain wall support (60) is a spherical joint support.

5. The double-layer high-rise curtain wall structure for cantilever structure according to claim 3, characterized in that: The double-layer high-rise curtain wall structure for the cantilever structure also includes a maintenance curtain wall (70), wherein the maintenance curtain wall (70) is located between the cantilever truss (30) and the peripheral modeling curtain wall (21), and the maintenance curtain wall (70) is connected to the cantilever truss (30).

6. The double-layer high-rise curtain wall structure for cantilever structure according to any one of claims 3 to 5, characterized in that: The roof-shaped curtain wall (22) includes a plurality of towering curtain wall units (50) connected in sequence according to the shape of the roof-shaped curtain wall (22), the number of the curtain wall supports (60) and the number of the curtain wall struts (40) are both multiple, and the multiple curtain wall supports (60) are evenly arranged along the bottom of the roof-shaped curtain wall (22), and the curtain wall supports (60) and the curtain wall struts (40) are arranged in a one-to-one correspondence.

7. The double-layer high-rise curtain wall structure for cantilever structure according to claim 6, characterized in that: The towering curtain wall unit (50) includes vertical trusses (51), horizontal trusses (52) and conversion trusses (53). The number of the vertical trusses (51) and the number of the horizontal trusses (52) are both multiple. The multiple vertical trusses (51) are arranged at intervals along the molding structure. The horizontal trusses (52) are located between two adjacent vertical trusses (51). The multiple horizontal trusses (52) are arranged at intervals along the height direction of the vertical trusses (51). The bottoms of the multiple vertical trusses (51) are connected to the curtain wall supports (60) through the conversion trusses (53). The curtain wall support rods (40) are connected to any vertical truss (51).

8. The double-layer high-rise curtain wall structure for cantilever structure according to claim 7, characterized in that: The vertical truss (51) includes a vertical truss chord (51a), a vertical truss vertical web (51b) and a vertical truss diagonal web (51c); There are two vertical truss chords (51a), which are arranged on opposite sides of the horizontal truss (52) along the width direction of the horizontal truss (52); there are multiple vertical truss webs (51b), which are arranged at intervals along the height direction of the vertical truss chord (51a); and the vertical truss diagonal web (51c) is arranged between two adjacent vertical truss webs (51b).

9. The double-layer high-rise curtain wall structure for cantilever structure according to claim 8, characterized in that: The horizontal truss (52) includes a horizontal truss chord (52a), a horizontal truss vertical web (52b) and a horizontal truss diagonal web (52c); The number of the horizontal truss chords (52a) is two, and the two horizontal truss chords (52a) are arranged at opposite ends of the vertical truss vertical web (51b). The horizontal truss vertical web (52b) and the horizontal truss diagonal web (52c) are both arranged between the two horizontal truss chords (52a), and the horizontal truss diagonal web (52c) is connected to the vertical truss chord (51a).

10. The double-layer high-rise curtain wall structure for cantilever structure according to claim 9, characterized in that: The towering curtain wall unit (50) further includes a plurality of horizontal tie rods (54), the plurality of horizontal tie rods (54) being arranged at intervals along the height direction of the vertical trusses (51), and the horizontal tie rods (54) being arranged between two adjacent horizontal trusses (52).

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