Roof space structure composed of three-way steel trusses

Abstract

The utility model provides a roof space structure composed of three-way steel trusses, and relates to the technical field of large-span roof supporting structures, and the roof space structure is characterized in that outer column frames are arranged at the bottoms of the two ends of a horizontal transverse steel truss, and a core tube shear wall is arranged at one end of each of two horizontal longitudinal steel trusses; the core tube shear wall is arranged on the inner side of the high cantilever roof curtain wall framework, the horizontal transverse steel truss and the core tube shear wall are located at the two ends of the horizontal longitudinal steel truss respectively, and the two vertical wind-resistant steel trusses are supported at the bottom of one side of the high cantilever roof curtain wall framework. According to the technical key points, a spatial three-way truss is formed by a horizontal transverse steel truss, a horizontal longitudinal steel truss and a vertical wind-resistant steel truss, so that a spatial structure which is clearly stressed and reasonably arranged is formed below a roof formed at the top of a high-cantilever roof curtain wall framework, and the overall anti-seismic and wind-resistant performance of the roof structure can be improved; and the phenomenon that the whole structure generates resonance due to local vortex vibration of the roof component can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of large-span roof supporting structures, in particular to a roof space structure composed of three-way steel trusses. Background Art

[0002] Roof refers to the surface of the roof of a building, and also refers to the part between the ridge and the eaves. This part occupies a large area of ​​the roof, or the roof is the larger part of the roof. Roof generally includes cast-in-place concrete floor, cement mortar leveling layer, thermal insulation layer, waterproof layer, cement mortar protective layer, drainage system, parapet and lightning protection measures, etc. In special projects, there is also tile construction.

[0003] The top floors of high-rise towers are often equipped with large-scale column-free spaces, and the tower roofs have curtain wall structures with large cantilever heights. For coastal areas with large wind loads, after the roof is arranged in a plane structure, due to the large span of the roof and the high roof cantilever curtain wall structure, the large-span roof components cannot be directly connected to the main vertical components. The traditional method of increasing the cross-section of roof components and setting a single row of wind-resistant columns on the roof cannot be applied to complex local spatial relationships, nor can it meet the design requirements of the structure for load bearing and deformation. Vortex-induced vibration of the roof frame structure may also occur, causing resonance of the overall structure, posing a greater safety hazard. Utility Model Content

[0004] In order to overcome the problem that the top floors of existing high-rise building towers cannot be directly connected to the main vertical components due to the large roof span and the high roof cantilever curtain wall structure, the traditional method of increasing the cross-section of the roof components and setting a single row of wind-resistant columns on the roof cannot be applied to complex local spatial relationships, nor can it meet the design requirements of the structure for load-bearing and deformation. Vortex-induced vibration of the roof frame structure may also occur, resulting in resonance with the overall structure. The embodiment of the present application provides a roof space structure composed of three-way steel trusses. By adopting the form of a spatial three-way truss composed of horizontal transverse steel trusses, horizontal longitudinal steel trusses and vertical wind-resistant steel trusses, a spatial structure with clear force and reasonable layout is formed under the roof formed at the top of the high cantilever roof curtain wall structure, which solves the structural design problems of the existing roof with large span, unfavorable support conditions and high cantilever roof frame, improves the overall structural performance of the roof structure in terms of earthquake resistance and wind resistance, has good structural load-bearing and deformation resistance, has strong applicability to complex building spaces, and can effectively avoid the phenomenon of resonance of the overall structure caused by local vortex vibration of the roof components.

[0005] The technical solution adopted by the embodiment of the present application to solve the technical problem is:

[0006] A roof space structure composed of three-way steel trusses, including a horizontal transverse steel truss, a horizontal longitudinal steel truss and a vertical wind-resistant steel truss, wherein two horizontal longitudinal steel trusses are provided, and are respectively located at the two ends of the horizontal transverse steel truss;

[0007] Two vertical wind-resistant steel trusses are provided, each located at the top of one end of the two horizontal longitudinal steel trusses;

[0008] Among them, outer column frames are provided at the bottom of both ends of the horizontal transverse steel trusses, a core tube shear wall is provided at one end of the two horizontal longitudinal steel trusses, and the core tube shear wall is arranged on the inner side of the high cantilever roof curtain wall frame. The horizontal transverse steel trusses and the core tube shear wall are respectively located at the two ends of the horizontal longitudinal steel trusses, and the two vertical wind-resistant steel trusses are supported at the bottom of one side of the high cantilever roof curtain wall frame.

[0009] In a possible implementation, the horizontal transverse steel truss includes a second lower chord and a second upper chord, a plurality of second diagonal web members are arranged between the second upper chord and the second lower chord, two second vertical web members are processed between both ends of the second upper chord and the second lower chord, the plurality of second diagonal web members are welded and combined with the second lower chord and the second upper chord, and the bottoms of the two second vertical web members located on the inner side are respectively connected to the interior of the two outer column frames, and extend to the bottom to the interior of the next floor of the building.

[0010] In a possible implementation, the horizontal transverse steel truss further includes a plurality of second stiffening ribs, and the plurality of second stiffening ribs are respectively welded between the second lower chord, the second upper chord, the second vertical web member, and the second diagonal web member.

[0011] In a possible implementation, the horizontal longitudinal steel truss includes a first lower chord and a first upper chord, a plurality of first diagonal web members are arranged between the first lower chord and the first upper chord, a first vertical web member is processed at one end of the first upper chord and the first lower chord, a steel frame is arranged inside the core tube shear wall, a plurality of the first diagonal web members are welded and combined with the first upper chord and the first lower chord, the first vertical web member and the second vertical web member are connected together, the first upper chord, the first lower chord and the first diagonal web member all extend into the interior of the core tube shear wall and are rigidly connected to the steel frame.

[0012] In a possible implementation, the horizontal longitudinal steel truss further includes a plurality of first stiffening ribs, and the plurality of first stiffening ribs are respectively welded between the first lower chord, the first upper chord, the first diagonal web member, and the first vertical web member.

[0013] In a possible implementation, the vertical wind-resistant steel truss includes a wind-resistant upper chord, a wind-resistant lower chord is processed on one side of the top of the wind-resistant upper chord, a plurality of wind-resistant web members are welded between the wind-resistant upper chord and the wind-resistant lower chord, and a plurality of wind-resistant stiffening ribs are processed between the top of the wind-resistant upper chord and the wind-resistant lower chord, between the bottom of the wind-resistant lower chord and the top of the first upper chord, and between the bottom of the wind-resistant upper chord and the top of the first upper chord.

[0014] In summary, the present invention includes at least one of the following beneficial technical effects:

[0015] 1. This application adopts a spatial three-way truss consisting of horizontal transverse steel trusses, horizontal longitudinal steel trusses and vertical wind-resistant steel trusses, and forms a spatial structure with clear force and reasonable layout under the roof formed on the top of the high cantilever roof curtain wall frame, which solves the structural design problems of the existing roof with large span, unfavorable support conditions and high cantilever roof frame, improves the overall structural performance of the roof structure in terms of earthquake resistance and wind resistance, has good structural bearing and deformation resistance capabilities, has strong applicability to complex building spaces, and can effectively avoid the phenomenon of resonance of the overall structure caused by local vortex vibration of roof components;

[0016] 2. This application adopts the form of configuring two vertical wind-resistant steel trusses with horizontal transverse steel trusses with extended sections, which solves the problem that long-span components cannot be directly supported on vertical components and the layout of the supporting end building is limited, provides strong supporting conditions for long-span components, and significantly improves the safety and stability of the roof structure system;

[0017] 3. The present application adopts the form of horizontal longitudinal steel trusses and horizontal transverse steel trusses with extended sections to jointly support two vertical wind-resistant steel trusses, thereby providing a solid and reliable root constraint condition for the high cantilever roof curtain wall structure, improving the bearing and deformation capacity of the high cantilever roof curtain wall structure under the influence of wind loads in coastal areas, avoiding the possibility of vortex vibration of the high cantilever roof curtain wall structure causing resonance of the overall structure, and improving the safety and comfort of building living. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the installation position structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 3 It is a cross-sectional view of the horizontal transverse steel truss of the utility model;

[0021] Figure 4 It is a cross-sectional view of the vertical wind-resistant steel truss of the utility model.

[0022] Description of reference numerals:

[0023] 1. Vertical wind-resistant steel truss; 101. Wind-resistant upper chord; 102. Wind-resistant lower chord; 103. Wind-resistant web member; 104. Wind-resistant stiffening rib;

[0024] 2. Horizontal longitudinal steel truss; 201. first lower chord; 202. first upper chord; 203. first diagonal web member; 204. first stiffening rib; 205. first vertical web member;

[0025] 3. Horizontal transverse steel truss; 301. second lower chord; 302. second upper chord; 303. second vertical web member; 304. second diagonal web member; 305. second stiffening rib;

[0026] 4. High cantilever roof curtain wall structure; 5. External column frame; 6. Core tube shear wall; 7. Steel frame. DETAILED DESCRIPTION

[0027] The technical solution in the embodiment of the present application is to solve the problems of the above-mentioned background technology, and the overall idea is as follows:

[0028] Embodiment 1:

[0029] This embodiment introduces a specific structure of a roof space structure composed of three-way steel trusses. Figure 1-Figure 4 As shown, it includes a horizontal transverse steel truss 3, two horizontal longitudinal steel trusses 2 respectively located at both ends of the horizontal transverse steel truss 3, and two vertical wind-resistant steel trusses 1 respectively located at the top of one end of the two horizontal longitudinal steel trusses 2. The bottoms of both ends of the horizontal transverse steel truss 3 are provided with outer column frames 5, and one end of the two horizontal longitudinal steel trusses 2 is provided with a core tube shear wall 6;

[0030] like Figure 3 As shown, the horizontal transverse steel truss 3 includes a second lower chord 301 and a second upper chord 302, a plurality of second diagonal web members 304 are arranged between the second upper chord 302 and the second lower chord 301, two second vertical web members 303 are processed between both ends of the second upper chord 302 and the second lower chord 301, and the plurality of second diagonal web members 304 are welded and assembled with the second lower chord 301 and the second upper chord 302, and the horizontal transverse steel truss 3 also includes a plurality of second stiffening ribs 305;

[0031] like Figure 4 As shown, the horizontal longitudinal steel truss 2 includes a first lower chord 201 and a first upper chord 202, a plurality of first diagonal web members 203 are arranged between the first lower chord 201 and the first upper chord 202, a first vertical web member 205 is processed at one end of the first upper chord 202 and the first lower chord 201, a steel frame 7 is arranged inside the core tube shear wall 6, and the horizontal longitudinal steel truss 2 also includes a plurality of first stiffening ribs 204;

[0032] Meanwhile, the vertical wind-resistant steel truss 1 comprises a wind-resistant upper chord 101, a wind-resistant lower chord 102 is processed on one side of the top of the wind-resistant upper chord 101, and a plurality of wind-resistant web members 103 are welded between the wind-resistant upper chord 101 and the wind-resistant lower chord 102;

[0033] Among them, by arranging the core tube shear wall 6 on the inner side of the high cantilever roof curtain wall frame 4, the horizontal transverse steel truss 3 and the core tube shear wall 6 are respectively located at the two ends of the horizontal longitudinal steel truss 2. When the two vertical wind-resistant steel trusses 1 are used to support the bottom of one side of the high cantilever roof curtain wall frame 4, the core tube shear wall 6, the vertical wind-resistant steel truss 1, the horizontal longitudinal steel truss 2 and the horizontal transverse steel truss 3 can be combined to support the bottom of the inner side of the high cantilever roof curtain wall frame 4;

[0034] At the same time, the bottoms of the two second vertical web members 303 located on the inner side are respectively connected to the inside of the two outer column frames 5, and extend to the bottom to the inside of the next floor of the building. In order to ensure the overall structural strength of the horizontal longitudinal steel truss 2, its cross-sectional form is determined according to the force calculation, usually H-shaped or box-shaped. The plane of the first lower chord 201 can be arranged with steel secondary beams and roof panels to transfer all roof loads to the horizontal longitudinal steel truss 2, so as to realize the roof's demand for large span space and the bearing target of the roof load, and meet the established building functions;

[0035] Secondly, the planes where the two vertical wind-resistant steel trusses 1 are located are respectively in the same plane as the two horizontal longitudinal steel trusses 2. The wind-resistant upper chord 101 on the vertical wind-resistant steel truss 1 is close to the inner side of the building curtain wall on the outside, and the wind-resistant lower chord 102 is as close to the inner skin of the building as possible, so as to maximize the height of the vertical wind-resistant steel truss 1 and improve the bearing and deformation capacity of the vertical wind-resistant steel truss 1 (the vertical wind-resistant steel truss 1 can be a triangular truss, a rectangular solid truss or a rectangular hollow truss, which is not specifically specified here).

[0036] Furthermore, a plurality of wind-resistant stiffening ribs 104 are processed between the top of the wind-resistant upper chord 101 and the wind-resistant lower chord 102, between the bottom of the wind-resistant lower chord 102 and the top of the first upper chord 202, and between the bottom of the wind-resistant upper chord 101 and the top of the first upper chord 202. A plurality of second stiffening ribs 305 are respectively welded between the second lower chord 301, the second upper chord 302, the second vertical web member 303 and the second diagonal web member 304. A plurality of first stiffening ribs 204 are respectively welded between the first lower chord 201, the first upper chord 202, the first diagonal web member 203 and the first vertical web member 205, which is conducive to achieving a completely rigid connection at each node and improving the overall structural strength.

[0037] At the same time, multiple first diagonal web members 203 are welded together with the first upper chord 202 and the first lower chord 201, the first vertical web member 205 and the second vertical web member 303 are connected together, the first upper chord 202, the first lower chord 201 and the first diagonal web member 203 all extend into the interior of the core tube shear wall 6 and are rigidly connected to the steel frame 7.

[0038] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A roof space structure composed of three-way steel trusses, characterized in that: include: Horizontal transverse steel trusses (3); Two horizontal longitudinal steel trusses (2) are provided, and are respectively located at two ends of the horizontal transverse steel trusses (3); Two vertical wind-resistant steel trusses (1) are provided and are respectively located at the top of one end of the two horizontal longitudinal steel trusses (2); The bottoms of both ends of the horizontal transverse steel trusses (3) are provided with outer column frames (5), one end of the two horizontal longitudinal steel trusses (2) is provided with a core tube shear wall (6), the core tube shear wall (6) is arranged on the inner side of the high cantilever roof curtain wall structure (4), the horizontal transverse steel trusses (3) and the core tube shear wall (6) are respectively located at the two ends of the horizontal longitudinal steel trusses (2), and the two vertical wind-resistant steel trusses (1) are supported at the bottom of one side of the high cantilever roof curtain wall structure (4).

2. A roof space structure composed of three-way steel trusses as claimed in claim 1, characterized in that: The horizontal transverse steel truss (3) comprises a second lower chord (301) and a second upper chord (302), a plurality of second diagonal web members (304) are arranged between the second upper chord (302) and the second lower chord (301), and two second vertical web members (303) are processed between both ends of the second upper chord (302) and the second lower chord (301); Wherein, a plurality of the second diagonal web members (304) are welded together with the second lower chord member (301) and the second upper chord member (302), and the bottoms of the two second vertical web members (303) located on the inner side are respectively connected to the inside of the two outer column frames (5) and extend toward the bottom to the inside of the next floor of the building.

3. A roof space structure composed of three-way steel trusses as claimed in claim 2, characterized in that: The horizontal transverse steel truss (3) further comprises a plurality of second stiffening ribs (305), wherein the plurality of second stiffening ribs (305) are respectively welded between the second lower chord (301), the second upper chord (302), the second vertical web member (303) and the second diagonal web member (304).

4. The roof space structure composed of three-way steel trusses according to claim 1, characterized in that: The horizontal longitudinal steel truss (2) comprises a first lower chord (201) and a first upper chord (202), a plurality of first diagonal web members (203) are arranged between the first lower chord (201) and the first upper chord (202), a first vertical web member (205) is processed at one end of the first upper chord (202) and the first lower chord (201), and a steel frame (7) is arranged inside the core tube shear wall (6); Among them, a plurality of the first diagonal web members (203) are welded together with the first upper chord member (202) and the first lower chord member (201), the first vertical web member (205) and the second vertical web member (303) are connected together, and the first upper chord member (202), the first lower chord member (201) and the first diagonal web member (203) all extend into the interior of the core tube shear wall (6) and are rigidly connected to the steel frame (7).

5. A roof space structure composed of three-way steel trusses as claimed in claim 4, characterized in that: The horizontal longitudinal steel truss (2) further comprises a plurality of first stiffening ribs (204), wherein the plurality of first stiffening ribs (204) are respectively welded between the first lower chord (201), the first upper chord (202), the first diagonal web member (203) and the first vertical web member (205).

6. A roof space structure composed of three-way steel trusses as claimed in claim 4, characterized in that: The vertical wind-resistant steel truss (1) comprises a wind-resistant upper chord (101), a wind-resistant lower chord (102) is processed on one side of the top of the wind-resistant upper chord (101), a plurality of wind-resistant web members (103) are welded between the wind-resistant upper chord (101) and the wind-resistant lower chord (102), a plurality of wind-resistant stiffening ribs (104) are processed between the tops of the wind-resistant upper chord (101) and the wind-resistant lower chord (102), between the bottom of the wind-resistant lower chord (102) and the top of the first upper chord (202), and between the bottom of the wind-resistant upper chord (101) and the top of the first upper chord (202).

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