Large-span string pipe truss prestressed roof structure

Abstract

The utility model provides a large span string pipe truss prestress roof structure, which relates to the technical field of roof construction, and comprises a string pipe truss, a plurality of cross beams, a plurality of angle plates and a plurality of flat plates, the string pipe truss is fixed on the ground through a plurality of support columns, the bottoms of the plurality of cross beams are fixedly connected with the top of the string pipe truss, and the flat plates are fixedly connected with the bottom of the string pipe truss. The angle plates are fixedly connected with the cross beam through the first fixing parts, the flat plates are fixedly connected with the cross beam through the second fixing parts, and the first fixing parts and the second fixing parts are of the same structure. The first clamping blocks are clamped with the first clamping grooves, the second clamping blocks are clamped with the second clamping grooves, and the third clamping blocks are clamped with the third clamping grooves, so that the side faces of the two adjacent flat plates or angle plates are attached to each other, the splicing seam is reduced, through the structure, the splicing seam can be reduced, the sealing performance is improved, and the service life is prolonged. The heat preservation performance of the roof is improved to a certain degree.

Description

Technical Field

[0001] The utility model relates to the technical field of roof construction, in particular to a large-span string-tube truss prestressed roof structure. Background Art

[0002] The large-span cable-string truss prestressed roof structure is a new type of spatial structure system, which mainly includes components such as upper chord, lower chord, cables and struts. This structure uses cables to apply prestress to the upper chord, so that the roof structure has a certain rigidity and stability, while reducing the deadweight of the structure and improving the bearing capacity of the structure. The advantages of the large-span cable-string truss prestressed roof structure include excellent force performance, strong adaptability, energy saving and environmental protection, good economy, good durability and outstanding visual effects. The structure can effectively transfer the load to the upper and lower chords and struts, give full play to the bearing capacity of each component, and make the overall structure more stable and safe. In addition, the structure has beautiful appearance and smooth lines, which can be coordinated with the surrounding environment and enhance the overall visual effect of the building.

[0003] The roof of a general large-span tube-string truss prestressed roof structure is laid in a roof panel manner, including a tube-string truss and multiple roof panels. A plurality of holes are opened on the top of the tube-string truss, and a plurality of through holes are opened on the tops of the multiple roof panels, respectively. Multiple bolts are passed through the through holes on the top of the roof panels, and the bolts are screwed into the holes on the top of the tube-string truss, so that the multiple roof panels are fixed on the top of the tube-string truss. The multiple roof panels are arranged in an array. However, since the distance between the multiple holes opened on the top of the tube-string truss is difficult to control, it will cause larger joints between the roof panels, resulting in lower sealing of the roof panels, thereby reducing the thermal insulation of this roof.

[0004] Therefore, it is necessary to provide a new large-span prestressed roof structure of the string-tube truss to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a large-span string-tube truss prestressed roof structure.

[0006] The utility model provides a large-span tube-string truss prestressed roof structure comprising a tube-string truss, a plurality of beams, a plurality of angle plates and a plurality of flat plates, wherein the tube-string truss is fixed to the ground via a plurality of support columns, the bottoms of a plurality of beams are fixedly connected to the tops of the tube-string truss, a plurality of angle plates are fixedly connected to the beams via a plurality of first fixing members, a plurality of flat plates are fixedly connected to the beams via a plurality of second fixing members, and the first fixing members and the second fixing members are of the same structure.

[0007] Preferably, a plurality of first snap-fitting blocks are respectively provided at both ends of the angle plate and at one end of the flat plate, a plurality of first snap-fitting grooves matching the first snap-fitting blocks are provided at one end of the flat plate away from the first snap-fitting blocks, a plurality of second snap-fitting blocks are provided on one side of the angle plate, a plurality of second snap-fitting grooves matching the second snap-fitting blocks are provided at one end of the angle plate away from the second snap-fitting blocks, a plurality of third snap-fitting blocks are provided on one side of the flat plate, and a plurality of third snap-fitting grooves matching the third snap-fitting blocks are provided on a side of the flat plate away from the third snap-fitting blocks.

[0008] Preferably, first grooves are respectively provided at both ends of the angle plate and at one end of the flat plate, a first protrusion is provided at the end of the flat plate away from the first groove, a second protrusion is provided on one side of the angle plate, a second groove is provided on the side of the angle plate away from the second protrusion, a third groove is provided on one side of the flat plate, and a third protrusion is provided on the side of the flat plate away from the third groove.

[0009] Preferably, the first fixing member includes a rotating column and a rotating block, a through hole is opened at the top of the angle plate, a hole is opened at the top of the cross beam, the bottom end of the rotating column passes through the through hole and is located in the hole, a thread is provided on the surface of the rotating column, the surface of the rotating column is threadedly connected to the inner wall of the hole, the top of the rotating column is fixedly connected to the bottom of the rotating block, and the bottom of the rotating block fits with the top of the angle plate.

[0010] Preferably, the cross-sectional diameter of the rotating column is smaller than the inner diameter of the through hole.

[0011] Preferably, a water retaining ring is fixedly provided on the top of the angle plate, an annular groove is provided on the bottom of the rotating block, and the water retaining ring is located in the water retaining groove.

[0012] A plurality of friction blocks for increasing friction are arranged at the bottom of the rotating block.

[0013] Compared with the related art, the large-span prestressed roof structure of the string-tube truss provided by the utility model has the following beneficial effects:

[0014] When assembling multiple flat panels, the multiple third snap-fitting blocks on one side of the flat panel are respectively snapped into the multiple third snap-fitting grooves on one side of another adjacent flat panel, and the first snap-fitting block at one end of the flat panel is snapped into the first snap-fitting groove at one end of another flat panel, so that the multiple flat panels are spliced. When assembling multiple angle panels, the multiple first snap-fitting blocks at both ends of the angle panels are respectively snapped into the multiple first snap-fitting grooves at one end of two adjacent flat panels, and the multiple second snap-fitting blocks on one side of the angle panels are respectively snapped into the multiple second snap-fitting grooves on one side of the adjacent angle panels. The first snap-fitting blocks are snapped into the first snap-fitting grooves, the second snap-fitting blocks are snapped into the second snap-fitting grooves, and the third snap-fitting blocks are snapped into the third snap-fitting grooves, so that the side surfaces of two adjacent flat panels or angle panels are fit together, thereby reducing the joint. Through the above structure, the joint can be reduced, thereby improving the sealing, and to a certain extent, improving the thermal insulation of the roof. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the overall structure of a large-span string-tube truss prestressed roof structure provided by the utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of shown;

[0017] Figure 3 for Figure 1 The overall structural diagram of the angle plate shown;

[0018] Figure 4 for Figure 1 The overall structural diagram of the plate shown;

[0019] Figure 5 for Figure 2 A schematic diagram of the installation structure of the first fixing member shown;

[0020] Figure 6 for Figure 5 Schematic diagram of the enlarged structure of B shown.

[0021] Numbers in the figure: 1, string-tube truss; 2, crossbeam; 3, angle plate; 4, flat plate; 5, first snap-fit ​​block; 6, second snap-fit ​​block; 7, third snap-fit ​​block; 8, first groove; 9, first protrusion; 10, second groove; 11, second protrusion; 12, third groove; 13, third protrusion; 14, rotating column; 15, rotating block; 16, water retaining groove; 17, annular groove; 18, friction block. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0023] Please refer to Figure 1-Figure 6 ,in, Figure 1A schematic diagram of the overall structure of a large-span string-tube truss prestressed roof structure provided by the utility model; Figure 2 for Figure 1 A schematic diagram of the enlarged structure of shown; Figure 3 for Figure 1 The overall structural diagram of the angle plate shown; Figure 4 for Figure 1 The overall structural diagram of the plate shown; Figure 5 for Figure 2 A schematic diagram of the installation structure of the first fixing member shown; Figure 6 for Figure 5 Schematic diagram of the enlarged structure of B shown.

[0024] In the specific implementation process, Figure 1-Figure 6 As shown, a large-span string-tube truss prestressed roof structure includes a string-tube truss 1, a plurality of beams 2, a plurality of angle plates 3 and a plurality of flat plates 4, the string-tube truss 1 is fixed to the ground through a plurality of support columns, the bottoms of the plurality of beams 2 are fixedly connected to the top of the string-tube truss 1, the plurality of angle plates 3 are fixedly connected to the beams 2 through a plurality of first fixing members, the plurality of flat plates 4 are fixedly connected to the beams 2 through a plurality of second fixing members, and the first fixing members and the second fixing members are of the same structure;

[0025] The string-tube truss 1 is provided with cables, and both ends of the cables are connected to the inner wall of the shoulder of the string-tube truss 1 through cable connection ear plates. The cables are used to provide prestress, and a certain prestress is applied to the string-tube truss 1. Under the action of the prestress, the string-tube truss 1 has a greater rigidity, thereby improving the bearing capacity of the string-tube truss 1, thereby achieving a large span of the string-tube truss 1. In addition, the use of high-strength materials, such as high-performance steel or aluminum alloy, can further improve the bearing capacity and rigidity of the string-tube truss 1, thereby achieving a large span;

[0026] A plurality of first snap-fitting blocks 5 are respectively provided at both ends of the angle plate 3 and at one end of the flat plate 4, a plurality of first snap-fitting grooves matching the first snap-fitting blocks 5 are provided at one end of the flat plate 4 away from the first snap-fitting blocks 5, a plurality of second snap-fitting blocks 6 are provided at one side of the angle plate 3, a plurality of second snap-fitting grooves matching the second snap-fitting blocks 6 are provided at one end of the angle plate 3 away from the second snap-fitting blocks 6, a plurality of third snap-fitting blocks 7 are provided at one side of the flat plate 4, a plurality of third snap-fitting grooves matching the third snap-fitting blocks 7 are provided at one side of the flat plate 4 away from the third snap-fitting blocks 7, and the first snap-fitting blocks 5 are snap-fitted with the first snap-fitting grooves, the second snap-fitting blocks 6 are snap-fitted with the second snap-fitting grooves, and the third snap-fitting blocks 7 are snap-fitted with the third snap-fitting grooves, so that the side surfaces of two adjacent flat plates 4 or angle plates 3 are fitted together, thereby reducing the joints;

[0027] The first grooves 8 are respectively formed at both ends of the angle plate 3 and at one end of the flat plate 4, a first convex block 9 is formed at one end of the flat plate 4 away from the first groove 8, a second convex block 11 is formed at one side of the angle plate 3, a second groove 10 is formed at one side of the angle plate 3 away from the second convex block 11, a third groove 12 is formed at one side of the flat plate 4, and a third convex block 13 is formed at one side of the flat plate 4 away from the third groove 12. By making the first convex block 9, the second convex block 11 and the third convex block 13 respectively inserted into the first groove 8, the second groove 10 and the third groove 12, the joints are staggered, and the sealing performance can be further improved;

[0028] The first fixing member includes a rotating column 14 and a rotating block 15. A through hole is provided at the top of the angle plate 3, and a hole is provided at the top of the cross beam 2. The bottom end of the rotating column 14 passes through the through hole and is located in the hole. A thread is provided on the surface of the rotating column 14. The surface of the rotating column 14 is threadedly connected with the inner wall of the hole. The top of the rotating column 14 is fixedly connected with the bottom of the rotating block 15. The bottom of the rotating block 15 fits with the top of the angle plate 3. The cross-sectional diameter of the rotating column 14 is smaller than the inner diameter of the through hole. A water retaining ring is fixedly provided on the top of the angle plate 3. An annular groove 17 is provided at the bottom of the rotating block 15. The water retaining ring is located in the water retaining groove 16. A plurality of friction blocks 18 for increasing friction are provided at the bottom of the rotating block 15. By rotating The bottom end of the column 14 passes through the through hole and is located in the hole. By rotating the rotating block 15, the rotating block 15 drives the rotating column 14 to rotate in the hole. Since the surface of the rotating column 14 is threadedly connected to the inner wall of the hole, the rotating column 14 moves deeper into the hole, so that the rotating block 15 squeezes the top of the angle plate 3, thereby fixing the angle plate 3. The water retaining ring on the top of the angle plate 3 is used to prevent rainwater from seeping into the through hole. Since the cross-sectional diameter of the rotating column 14 is smaller than the inner diameter of the through hole, the position of the angle plate 3 can be adjusted to a certain extent. The friction block 18 is used to increase the friction between the rotating block 15 and the angle plate 3 to avoid sliding after the angle plate 3 is fixed.

[0029] The working principle provided by the utility model is as follows: when assembling a plurality of flat plates 4, a plurality of third snap-fitting blocks 7 on one side of the flat plate 4 are respectively snapped into a plurality of third snap-fitting grooves on one side of another adjacent flat plate 4, and a first snap-fitting block 5 at one end of the flat plate 4 is snapped into a first snap-fitting groove at one end of another flat plate 4, so that the plurality of flat plates 4 are spliced; when assembling a plurality of angle panels 3, a plurality of first snap-fitting blocks 5 at both ends of the angle panels 3 are respectively snapped into a plurality of first snap-fitting grooves at one end of two adjacent flat plates 4, and a plurality of second snap-fitting blocks 6 on one side of the angle panels 3 are respectively snapped into a plurality of second snap-fitting grooves on one side of the adjacent angle panels 3; the first snap-fitting blocks 5 are snapped into the first snap-fitting grooves, the second snap-fitting blocks 6 are snapped into the second snap-fitting grooves, and the third snap-fitting blocks 7 are snapped into the third snap-fitting grooves, so that the side surfaces of the two adjacent flat plates 4 or angle panels 3 are fit together, thereby reducing the splicing seam. And by making the first protrusion 9, the second protrusion 11 and the third protrusion 13 respectively fit into the first groove 8, the second groove 10 and the third groove 12, the joints are staggered, which can increase the sealing performance. By making the bottom end of the rotating column 14 pass through the through hole and be located in the hole, by rotating the rotating block 15, the rotating block 15 drives the rotating column 14 to rotate in the hole. Since the surface of the rotating column 14 is threadedly connected with the inner wall of the hole, the rotating column 14 moves deeper into the hole, so that the rotating block 15 squeezes the top of the angle plate 3, thereby fixing the angle plate 3. The water retaining ring on the top of the angle plate 3 is used to prevent rainwater from seeping into the through hole. Since the cross-sectional diameter of the rotating column 14 is smaller than the inner diameter of the through hole, the position of the angle plate 3 can be adjusted to a certain extent. The friction block 18 is used to increase the friction between the rotating block 15 and the angle plate 3 to prevent the angle plate 3 from moving after being fixed.

[0030] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0031] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A large-span prestressed roof structure with a string-tube truss, characterized in that: The invention comprises a tube-string truss (1), a plurality of cross beams (2), a plurality of angle plates (3) and a plurality of flat plates (4), wherein the tube-string truss (1) is fixed on the ground via a plurality of support columns, the bottoms of the plurality of cross beams (2) are fixedly connected to the top of the tube-string truss (1), the plurality of angle plates (3) are fixedly connected to the cross beams (2) via a plurality of first fixing members, and the plurality of flat plates (4) are fixedly connected to the cross beams (2) via a plurality of second fixing members, wherein the first fixing members and the second fixing members have the same structure.

2. A large-span prestressed roof structure of a string-tube truss according to claim 1, characterized in that: A plurality of first snap-fitting blocks (5) are respectively provided at both ends of the angle plate (3) and at one end of the flat plate (4); a plurality of first snap-fitting grooves matching the first snap-fitting blocks (5) are provided at one end of the flat plate (4) away from the first snap-fitting blocks (5); a plurality of second snap-fitting blocks (6) are provided at one side of the angle plate (3); a plurality of second snap-fitting grooves matching the second snap-fitting blocks (6) are provided at one end of the angle plate (3) away from the second snap-fitting blocks (6); a plurality of third snap-fitting blocks (7) are provided at one side of the flat plate (4); a plurality of third snap-fitting grooves matching the third snap-fitting blocks (7) are provided at one side of the flat plate (4) away from the third snap-fitting blocks (7).

3. The large-span prestressed roof structure of the string-tube truss according to claim 2 is characterized in that: The two ends of the angle plate (3) and one end of the flat plate (4) are respectively provided with a first groove (8); the end of the flat plate (4) away from the first groove (8) is provided with a first protrusion (9); one side of the angle plate (3) is provided with a second protrusion (11); the side of the angle plate (3) away from the second protrusion (11) is provided with a second groove (10); one side of the flat plate (4) is provided with a third groove (12); and the side of the flat plate (4) away from the third groove (12) is provided with a third protrusion (13).

4. The large-span prestressed roof structure of the string-tube truss according to claim 3 is characterized in that: The first fixing member comprises a rotating column (14) and a rotating block (15); a through hole is formed at the top of the angle plate (3); a hole is formed at the top of the cross beam (2); the bottom end of the rotating column (14) passes through the through hole and is located in the hole; a thread is formed on the surface of the rotating column (14); the surface of the rotating column (14) is threadedly connected to the inner wall of the hole; the top of the rotating column (14) is fixedly connected to the bottom of the rotating block (15); and the bottom of the rotating block (15) fits the top of the angle plate (3).

5. The large-span prestressed roof structure of the string-tube truss according to claim 4 is characterized in that: The cross-sectional diameter of the rotating column (14) is smaller than the inner diameter of the through hole.

6. The large-span prestressed roof structure of the string-tube truss according to claim 5, characterized in that: A plurality of friction blocks (18) for increasing friction are provided at the bottom of the rotating block (15).

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