Purlin-free net rack combined overhead roof structure

Abstract

The utility model relates to a purlin-free net rack combined overhead roof structure, which comprises a purlin-free net rack, a structural floor and an overhead roof, an upper chord in the purlin-free net rack adopts a rectangular steel pipe, an upper chord node adopts a cylindrical node, a lower chord and a diagonal web member adopt round pipes, a lower chord node adopts a hollow welding ball node, and the upper chord node adopts a hollow welding ball node. The rod pieces are assembled into a purlin-free net rack on site, and structural slope finding is conducted on the top face formed by connecting the assembled upper chord and the upper chord nodes; a structural floor slab is directly and fixedly installed on an upper chord and an upper chord node of the purlin-free net rack, a waterproof layer, a heat preservation layer and a rigid protection layer are sequentially arranged on the top face of the structural floor slab from bottom to top, all-purpose supports are fixed to the top of the rigid protection layer at intervals, the tops of all-purpose supports are located on the same horizontal plane, and glass fiber reinforced plastic cover plates are laid on the tops of all-purpose supports. Gaps are reserved between adjacent assembled glass fiber reinforced plastic cover plates, and roof surface layers are arranged on the upper portions of the glass fiber reinforced plastic cover plates. The self weight of the structure is reduced, the construction steps are simplified, and the manufacturing cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of fabricated building, concretely relates to a no-purlin net rack combined overhead roof structure. BACKGROUND

[0002] In order to make full use of urban space, more and more roof sports field projects are set up, which enrich the urban landscape and at the same time put forward more stringent and diversified requirements for the design and innovation of building structure. The traditional large-span space roof net rack structure adopts round pipe components and spherical connecting nodes for upper chord, and needs to weld column support and purline layer before roof structure layer construction, which is complex in process, low in construction efficiency and high in cost. At the same time, the existing roof adopts building pitch and water permeable layer laying for drainage, which is poor in drainage effect, easy to accumulate water on the roof, and increases the structural dead weight by building pitch, which requires high bearing capacity of the lower net rack structure. CONTENT OF THE UTILITY MODEL

[0003] The utility model discloses a no-purlin net rack combined overhead roof structure, which does not need to set up purline layer, simplifies the construction procedure, adopts structural pitch instead of building pitch, reduces the structural dead weight and improves the roof drainage effect.

[0004] In order to realize the above-mentioned purpose, the utility model adopts the technical scheme that:

[0005] A no-purlin net rack combined overhead roof structure, which comprises a no-purlin net rack, a structural floor and an overhead roof. The no-purlin net rack comprises upper chord rods, upper chord nodes, lower chord rods, welded spherical nodes and diagonal web rods. The upper chord nodes adopt cylindrical nodes, the upper chord rods adopt rectangular steel pipes, the lower chord nodes adopt hollow welded spherical nodes, and the lower chord rods and the diagonal web rods adopt round steel pipes. The upper chord nodes are connected by the upper chord rods, the lower chord nodes are connected by the lower chord rods, and the upper chord nodes and the lower chord nodes are connected by the diagonal web rods. The top surface formed by the connection of the upper chord rods and the upper chord nodes after the assembly of the no-purlin net rack is pitched. The structural floor is fixedly installed on the upper chord rods and the upper chord nodes of the no-purlin net rack. A waterproof layer is arranged on the top surface of the structural floor, an insulation layer is arranged on the top surface of the waterproof layer, a rigid protective layer is arranged on the top surface of the insulation layer, universal support devices are fixedly arranged at intervals on the top of the rigid protective layer, and the top of each universal support device is located on the same horizontal plane. The overhead roof comprises glass steel cover plates and a roof surface layer. The glass steel cover plates are arranged on the top of the universal support devices and are fixed to the universal support devices. Adjacent glass steel cover plates are arranged in abutment and have gaps between them. The roof surface layer is arranged on the upper part of the glass steel cover plates.

[0006] Further, the structural floor comprises a steel bar truss floor support plate, steel bar trusses, horizontal steel bars and vertical steel bars are arranged on the steel bar truss floor support plate, the horizontal steel bars and the vertical steel bars are fixedly bound to the steel bar trusses respectively, the steel bar truss floor support plate is fixed to the upper chord rods and the upper chord nodes by means of pegs, and the top of the steel bar truss floor support plate is poured with concrete.

[0007] Further, the length of the upper chord between adjacent upper chord nodes is less than the maximum unsupported span of the steel bar truss floor.

[0008] Further, the structure slope formed by the upper chord and the upper chord node is not less than 3%.

[0009] Further, the height of the universal support can be adjusted, and the lower part of the universal support is poured with concrete to form a concrete column pier, and the universal support is fixed on the rigid protection layer through the concrete column pier.

[0010] Further, the height of the concrete column pier is 100mm.

[0011] Further, the spacing of the universal support is 600mm.

[0012] Further, the glass steel cover plate includes a glass steel grid at the lower part and a glass steel panel at the upper part, and the glass steel cover plate is fixed on the universal support through the fixing clamp.

[0013] Further, the roof surface layer is formed by using a water permeable material.

[0014] Further, the roof surface layer is formed by using any one of silicon PU plastic, plastic track, artificial turf and water permeable exposed aggregate.

[0015] The utility model discloses a no prop net rack combined overhead roof structure, and the advantages are as follows:

[0016] (1), the structure floor slab does not need to set up support and purline, is directly installed on the net rack, saves the material, and simplifies the construction technology, and simultaneously, adopts the net rack to adopt structure to find the slope, and omits the building to find the slope layer, can reduce the load, reduces the structural member section size, reduces the cost, and shortens the construction period.

[0017] (2), the building roof layer adopts the universal support ware overhead roof, and rainwater penetrates to the roof rigid protection layer through the gap between the glass steel cover plate, and then flows to the roof both sides drainage ditch through the structure slope quickly, reduces the roof area water leakage risk.

[0018] (3), the construction period is short, can lay the foundation one side and lay the plastic one side, reduces the construction period of the traditional foundation maintenance period, and the flexibility is higher, and the construction sequence is not subject to the eye.

[0019] (4), uses the fabricated material, and the glass steel panel and the universal support can be repeatedly used, and the demolition is quick, and a large amount of construction waste is not produced.

[0020] (5) Strong adaptability: flexible adaptation to different sports venues, more optional surface layer materials, no matter how large the original roof slope is, the original roof drainage function is not changed, and the national standard range of sports venues can be adjusted. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 Structure diagram of the non-purlin net rack in the embodiment;

[0022] Figure 2 Structure diagram of the connection node between the structural floor and the upper chord of the non-purlin net rack;

[0023] Figure 3 Structure diagram of the overhead roof in the embodiment.

[0024] Reference signs:

[0025] 1, lower chord node; 2, lower chord rod; 3, inclined web member; 4, upper chord node; 5, upper chord rod; 6, structural floor; 61, steel bar truss floor support plate; 62, stud; 63, transverse steel bar; 64, concrete; 7, waterproof layer; 8, thermal insulation layer; 9, rigid protective layer; 10, universal support; 11, concrete column pier; 12, glass steel cover plate; 13, roof surface layer. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.

[0027] The embodiment discloses a non-purlin net rack combined overhead roof structure, which comprises a non-purlin net rack, a structural floor 6 and an overhead roof. Figure 1As shown, the bracing-free space truss is assembled by welding in situ the upper chord bars 5, the upper chord nodes 4, the lower chord bars 2, the lower chord nodes 1 and the diagonal web bars 3. The structural floor 6 in the embodiment comprises a steel bar truss floor slab 61, which is directly installed on the top of the bracing-free space truss without the need of installing purlins and supports. In order to facilitate the fixation of the steel bar truss floor slab 61, the upper chord nodes 4 in the embodiment are short cylindrical nodes, the upper chord bars 5 are rectangular steel pipes, the lower chord nodes 1 are hollow welded spherical nodes, the lower chord bars 2 and the diagonal web bars 3 are circular steel pipes, the adjacent upper chord nodes 4 are fixedly connected by the upper chord bars 5, the adjacent lower chord nodes 1 are fixedly connected by the lower chord bars 2, and the upper chord nodes 4 and the lower chord nodes 1 are fixedly connected by the diagonal web bars 3, thereby forming the bracing-free space truss in the embodiment. In order to realize the drainage of the roof, the structural slope is used to replace the traditional building slope in the embodiment, and the building slope layer is omitted to reduce the structural load. Therefore, the top surface formed by the connection of the upper chord bars 5 and the upper chord nodes 4 after the assembly of the bracing-free space truss in the embodiment has a certain inclination with respect to the ground, and the inclination is not less than 3%. The height of the short cylindrical upper chord nodes 4 is greater than the height of the rectangular upper chord bars 5 connected thereto, and the diameter of the short cylinder is greater than the greater value of the width of the rectangular upper chord bars 5 connected thereto. The length of the upper chord bars 5 between the adjacent upper chord nodes 4 is less than the maximum unsupported span of the steel bar truss floor slab 61 laid on the upper portion of the upper chord bars 5.

[0028] As shown in the fixing structure of the structural floor 6 in the embodiment, Figure 2 After the assembly of the bracing-free space truss is completed in situ, the steel bar truss floor slab 61 is directly laid on the bracing-free space truss, and the steel bar truss floor slab 61 is fixed on the upper chord bars 5 by means of the nails 62. The horizontal steel bars 63 and the vertical steel bars are arranged on the steel bar truss floor slab 61, and the horizontal steel bars 63 and the vertical steel bars are respectively fixedly connected with the steel bar trusses arranged on the top of the steel bar truss floor slab 61. Finally, the concrete 64 is poured on the top of the steel bar truss floor slab 61 to form the structural floor 6 in the embodiment.

[0029] After the construction of the structural floor 6 is completed, the structural floor 6 also has an inclination with respect to the ground, as shown in Figure 3As shown, waterproof layer 7, thermal insulation layer 8 and rigid protection layer 9 are sequentially arranged on the top of structural floor 6 from bottom to top, and the top surface of the formed rigid protection layer 9 also has a slope relative to the ground. After the construction of rigid protection layer 9 is completed, measurement is performed on rigid protection layer 9, universal support devices 10 (professional name: "adjustable support base", the height of which can be adjusted) are arranged on rigid protection layer 9 at intervals of 600mm x 600mm, and 100mm-thick concrete is poured on the base of each universal support device 10 to form concrete column pier 11. After the installation of universal support device 10 is completed, the top elevation of all universal support devices 10 on rigid protection layer 9 is adjusted to the same height, then glass steel cover plate 12 is laid on the top of universal support device 10, the size of glass steel cover plate 12 needs to be determined according to the interval of universal support device 10, and a panel with specifications of 600mm x 600mm x 40mm can be used, glass steel cover plate 12 is fixed on universal support device 10 by using a fixing clamp, and roof surface layer 13 is laid on the top of glass steel cover plate 12. Glass steel cover plate 12 in the embodiment includes a lower glass steel grid and an upper glass steel panel, and a gap needs to be left between adjacent assembled glass steel cover plates 12, so that the rainwater permeated by roof surface layer 13 can permeate along the gap between glass steel cover plates 12 to rigid protection layer 9, and then be drained along the slope to a roof drainage ditch. Roof surface layer 13 is formed by using a water-permeable material, such as silicon PU plastic, plastic track, artificial turf, water-permeable exposed aggregate, etc.

[0030] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A lattice roof assembly of a combined frame and lattice roof construction, characterized in that: The structure floor is fixedly installed on the upper chord and the upper chord node of the net rack without columns, a waterproof layer is arranged on the top surface of the structure floor, an insulation layer is arranged on the top surface of the waterproof layer, a rigid protection layer is arranged on the top surface of the insulation layer, universal support devices are fixedly arranged on the top of the rigid protection layer at intervals, and the top of each universal support device is located on the same horizontal plane; the roof is composed of a glass steel cover plate and a roof surface layer, the glass steel cover plate is arranged on the top of the universal support device and fixed to the universal support device, and gaps are arranged between adjacent glass steel cover plates, and the roof surface layer is arranged on the upper portion of the glass steel cover plate. The structure floor includes a steel bar truss floor support plate, the steel bar truss floor support plate is provided with a steel bar truss, horizontal steel bars and vertical steel bars, the horizontal steel bars and the vertical steel bars are respectively fixedly connected to the steel bar truss, the steel bar truss floor support plate is fixed to the upper chord and the upper chord node through nails, and the top of the steel bar truss floor support plate is poured with concrete.

2. A combined lattice roof structure according to claim 1, characterized in that: The length of the upper chord between adjacent upper chord nodes is less than the maximum unsupported span of the steel bar truss floor support plate.

3. A combined lattice roof structure according to claim 2, characterized in that: The structure slope formed by the upper chord and the upper chord node is not less than 3%.

4. A combined lattice roof structure according to claim 1, characterized in that: The height of the universal support device is adjustable, the lower portion of the universal support device is poured with concrete to form a concrete column pier, and the universal support device is fixed to the rigid protection layer through the concrete column pier.

5. A combined lattice roof structure according to claim 1, characterized in that: The height of the concrete column pier is 100 mm.

6. A combined lattice roof structure according to claim 5, characterized in that: The spacing of the universal support device is 600 mm.

7. A combined lattice shell and space frame roof construction according to claim 1, wherein: The glass steel cover plate includes a glass steel grid arranged on the lower portion and a glass steel panel arranged on the upper portion, and the glass steel cover plate is fixed to the universal support device through a fixing clamp.

8. A combined lattice shell and space frame roof construction according to claim 1, wherein: The roof surface layer is formed of a water-permeable material.

9. A combined lattice shell and space frame roof construction according to claim 1, wherein: The roof surface layer is formed of any one of a silicon PU plastic, a plastic track, an artificial lawn and a water-permeable exposed aggregate.

10. A combined lattice roof structure according to claim 9, characterized in that: ​

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