CN210887774U

CN210887774U - Super bearing aluminum alloy truss of span more than 50m

Info

Publication number: CN210887774U
Application number: CN201921478454.4U
Authority: CN
Inventors: 刘顺平; 梁维旺; 徐意智; 李卫东; 李二辉
Original assignee: Shanghai Pengguan Performance Equipment Co ltd
Current assignee: Shanghai Pengguan Performance Equipment Co ltd
Priority date: 2019-09-04
Filing date: 2019-09-04
Publication date: 2020-06-30
Anticipated expiration: 2029-09-04

Abstract

The utility model discloses a super bearing aluminum alloy truss of span more than 50m, including being responsible for, pipe chute, standpipe and auxiliary pipe, be responsible for, auxiliary pipe and standpipe set up along length, width and the direction of height of aluminum alloy truss structure respectively to adjacent standpipe constitutes a truss constitutional unit as the border on being responsible for length direction along being responsible for. The rhombic supporting truss structure unit with the included angle of 42-48 degrees enables an aluminum alloy truss with the length of 760mm x 600mm to be contained between the inclined struts, connection of the primary truss and the secondary truss is easily achieved, the secondary pipe is connected in the width direction, matching of the main component and the splicing node is optimized, and bearing capacity and safety are further improved; and the main pipe is sequentially connected by utilizing the sleeve splicing joint along the length direction of the aluminum alloy truss structure, and the connection reliability of the main pipe and the sleeve part is further improved directly through the guarantee of the double-channel vertical shear pin.

Description

Super bearing aluminum alloy truss of span more than 50m

Technical Field

The utility model belongs to the technical field of truss structure, concretely relates to super bearing aluminum alloy truss of span more than 50 m.

Background

The truss is a supporting beam structure formed by connecting rod pieces at two ends by hinges through welding, riveting or bolts. Its advantages are high tension and pressure resistance, high strength, saving material, low dead weight and high rigidity. The trusses may be classified into triangular trusses, trapezoidal trusses, polygonal trusses, open-web trusses, and truss bridges according to the structure. In modern industries such as exhibition and performance, the aluminum truss is also widely used, for example, the aluminum truss with the specification of 1200mm × 600mm is mostly used to build an integral frame of a stage.

In the traditional design, due to the diversification of the actual stress condition, weak links in the traditional design may influence the bearing capacity of the whole frame, so that certain optimized space exists in the whole and local space design. In the existing truss structure, the conditions that the size of part of a main pipe is small, the size of an inclined pipe is large, the matching of the main pipe, the inclined pipe and a sleeve bolt is unreasonable, the process characteristics on a welding line and a splicing node are insufficient and the like exist, so that the nonuniformity of the overall structure strength is caused, and the potential safety hazard on a local assembly position exists in the use process, so that the adaptability of modern exhibition performance and the like to the safe bearing and bearing requirements of the truss can not be met;

in addition, the conventional truss with 1200mm x 600mm is mainly used as a main beam for bearing, and is fixedly connected with the secondary beam trusses with the specifications of 600mm x 400mm, 400mm x 300mm and the like in the vertical or horizontal direction to form a complete stress body for arrangement of various facility devices. However, in practical processes, it is found that the support orientation of the existing vertical and inclined trusses causes that 600mm x 400mm secondary trusses cannot be placed in the gap space in the middle, so that additional splicing nodes are required for connecting the primary trusses and the secondary trusses. On one hand, the workload of node connection is increased to influence the construction process, and on the other hand, the potential safety hazard caused by the increase of the number of nodes is increased;

the truss is mainly spliced by adopting a welding mode, the bearing capacity of a welding line is limited, and the welding line is mainly limited by the requirements of manual technology, so that the stability of the welding position of the node is required to be enhanced and ensured.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model discloses aim at developing the super bearing aluminum alloy truss of span more than 50m, realize optimizing the whole spatial structure of truss for make things convenient for the installation between primary and secondary roof beam isotructure, and improve the connection structure of splice point department, strengthen overall stability, make greatly reduced potential safety hazard.

The utility model aims at realizing through the following technical scheme:

a super bearing aluminum alloy truss with span of more than 50m comprises a main pipe, inclined pipes, vertical pipes and auxiliary pipes, wherein the main pipe, the auxiliary pipes and the vertical pipes are respectively arranged along the length direction, the width direction and the height direction of an aluminum alloy truss structure, the adjacent vertical pipes in the length direction of the main pipe are used as boundaries to form a truss structure unit, and a plurality of repeated truss structure units are finally formed, a triangular supporting structure is arranged between the adjacent vertical pipes in each truss structure unit, inclined slotted holes are horizontally and uniformly distributed on the side surface of the main pipe, the triangular supporting structure is composed of two inclined pipes and a main pipe, the two inclined pipes are connected between the two main pipes, an included angle formed between the two inclined pipes is 62-67 degrees, one vertex of the triangular supporting structure is a middle point of the main pipe, and the auxiliary pipes are connected to the middle points of the two main pipes in the width direction in each truss structure unit, the main pipes are sequentially connected in the length direction of the aluminum alloy truss structure through sleeve splicing joints.

Further, the inner diameter of each inclined slotted hole is slightly larger than the outer diameter of the inclined pipe, the outward inclination included angle between each pair of two adjacent inclined slotted holes is about 42-48 degrees, a mounting hole is formed in the horizontal middle of each pair of inclined slotted holes, the inner diameter of each mounting hole is slightly larger than the outer diameter of the vertical pipe, and the mounting hole and the inclined slotted holes are communicated with the inner cavity of the main pipe.

Furthermore, two ends of the vertical pipe respectively penetrate through the mounting holes and are arranged in the inner cavities of the two parallel main pipes, the vertical pipes at two tail ends of the main pipes are arranged, the included angle between the vertical pipes and the two main pipes is fixedly provided with a neck adding plate, and the two adjacent vertical pipes and the two horizontal main pipes form a unit body of the truss by taking the boundaries.

Furthermore, two pairs of inclined slotted holes with outward inclination included angles of about 132-138 degrees are formed in the two side faces of the middle part of the vertical pipe, and the inclined slotted holes on the surface of the vertical pipe and the inclined slotted holes on the corresponding main pipes in the same structural unit have the same inclination.

Furthermore, a welding part is arranged between the upper end part of the inclined pipe and the bottom end face of the main pipe, the upper end of the inclined pipe in the same structural unit is arranged in the inner cavity of the main pipe through an inclined slotted hole, and the lower end of the inclined pipe is arranged in the inner cavity of the vertical pipe through an inclined slotted hole.

Further, the sleeve splicing joint comprises a connecting part and an embedding part, the connecting part is connected with the same horizontal main pipe through a connecting pin, and the back end face of the connecting part is fixedly connected with the embedding part.

Furthermore, the right end of the embedding part is provided with a vertical through hole, the left end of the embedding part is provided with a cross through hole which is mutually perpendicular and communicated, the whole embedding part is arranged in the inner cavity of the main pipe, and the main pipe, the vertical pipe and the sleeve splicing joint are fixedly connected through the through hole which is formed in the front surface of the main pipe through the shear pin.

Furthermore, the cross section of the aluminum alloy truss is 1480mm 750mm, the aluminum alloy truss is an aluminum alloy structure with the height of less than 1500mm, can span 50m-70m and has certain bearing capacity, and the secondary truss with the cross section of 760mm 600mm and the specification below can be installed between the inclined pipes to be directly inserted without bolts and accessories.

Further, the main pipe is a circular pipe with the diameter of 110mm and the wall thickness of 10 mm; the auxiliary pipe and the vertical pipe are round pipes with the diameter of 50mm and the wall thickness of 4mm, round pipes with the diameter of 70mm and the wall thickness of 6mm, the inclined pipe is a round pipe with the diameter of 50mm and the wall thickness of 4mm, and the main pipe, the auxiliary pipe, the inclined pipe and the vertical pipe are all made of 6082-T6.

The beneficial effects of the utility model reside in that:

the truss structure unit is supported by adopting a diamond shape, two double-herringbone inclined struts are formed by four inclined tubes and two main tubes, an included angle formed between the two inclined tubes is 42-48 degrees, one vertex of the diamond-shaped support structure is used as a middle point of the main tubes, the structure enables an aluminum alloy truss with the diameter of 760mm to 600mm to be directly inserted between the herringbone inclined struts, the connection of primary and secondary trusses can be easily realized, and the middle points of the two main tubes are connected with secondary tubes along the width direction;

the second, adopt and utilize sleeve splice joint to connect gradually the person in charge along the length direction of aluminum alloy truss structure, by the embedding portion of the both sides of connecting portion, nested inside the person in charge of both sides to run through spacingly through the shear pin, prevent that the integral connection under the traditional butt weld atress destruction condition from becoming invalid. And the sleeve and the main pipe are connected without welding seams, and the connection reliability of the main pipe and the sleeve part is further improved by directly ensuring the double-channel vertical shear pin.

Drawings

In order to make the purpose, technical scheme and beneficial effect of the utility model clearer, the utility model provides a following figure explains:

FIG. 1 is a schematic view of the whole structure of a super load-bearing aluminum alloy truss with a span of more than 50m of the utility model;

FIG. 2 is an overall side view of the super load-bearing aluminum alloy truss with a span of more than 50m according to the present invention;

FIG. 3 is a schematic structural diagram of a unit body of the super load-bearing aluminum alloy truss with a span of more than 50m of the utility model;

fig. 4 is the utility model discloses a joint structure schematic diagram is spliced to sleeve of super bearing aluminum alloy truss of span more than 50 m.

In the figure: 1. the pipe comprises a main pipe, 2, an auxiliary pipe, 3, an inclined pipe, 4, a vertical pipe, 5, an inclined slotted hole, 6, a sleeve splicing joint, 7, a mounting hole, 8, a neck plate, 9, a welding part, 10, a connecting pin, 11, a shear pin, 61, a connecting part, 62 and an embedded part.

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are for purposes of illustration only and are not intended to limit the scope of the present invention.

As shown in fig. 1-4, a super load-bearing aluminum alloy truss with a span of more than 50m comprises a main pipe 1, an auxiliary pipe 2, an inclined pipe 3 and a vertical pipe 4, wherein the main pipe 1, the auxiliary pipe 2 and the vertical pipe 4 are respectively arranged along the length direction, the width direction and the height direction of an aluminum alloy truss structure, a truss structure unit is formed by taking the adjacent vertical pipe 4 along the length direction of the main pipe 1 as a boundary, and a plurality of repeated truss structure units are finally formed, in each truss structure unit, a triangular support structure is arranged between the adjacent vertical pipes 4, inclined slotted holes 5 are horizontally and uniformly distributed on the side surface of the main pipe 1, the triangular support structure is formed by two inclined pipes 3 and the main pipe 1, the two inclined pipes 3 are connected between the two main pipes 1, the included angle formed between the two inclined pipes 3 is 62-67 degrees, one vertex of the triangular support structure is the midpoint of the main pipe 1, the middle points of the two main pipes 1 in the width direction are connected with the auxiliary pipes 2, and the main pipes 1 are sequentially connected through sleeve splicing joints 6 in the length direction of the aluminum alloy truss structure.

In this embodiment, the inner diameter of each inclined slot 5 is slightly larger than the outer diameter of the inclined tube 3, the outward inclination angle between each pair of two adjacent inclined slots 5 is about 42-48 °, a mounting hole 7 is formed in the horizontal middle of each pair of inclined slots 5, the inner diameter of the mounting hole 7 is slightly larger than the outer diameter of the vertical tube 4, and the mounting hole 7 and the inclined slots 5 are both communicated with the inner cavity of the main tube 1.

In this embodiment, the both ends of standpipe 4 pass mounting hole 7 respectively and arrange in the inner chamber of two parallel person in charge 1, and arrange in the standpipe 4 of being responsible for two ends of 1, all fixed being equipped with the contained angle department of two person in charge 1 with add neck plate 8, two adjacent standpipes 4 and two person in charge 1 of level are the cell cube that the boundary constitutes the truss, add neck plate 8 and make pipe end portion intensity obtain improving.

In this embodiment, two pairs of inclined slots 5 with outward inclination included angles of about 132-.

In this embodiment, a welding part 9 is provided between the upper end of the inclined tube 3 and the bottom end face of the main tube, and the upper end of the inclined tube 3 in the same structural unit is disposed in the inner cavity of the main tube 1 through the inclined slot 5, the lower end is disposed in the inner cavity of the vertical tube 4 through the inclined slot 5, and the welding part 9 realizes the auxiliary fixing function.

In this embodiment, the sleeve joint 6 is composed of a connecting portion 61 and an embedded portion 62, the connecting portion 61 is connected to the horizontal main pipe 1 by a connecting pin 10, a back end surface of the connecting portion 61 is fixedly connected to the embedded portion 62, and the connecting portion 61, the embedded portion 61 and the main pipe 1 are designed by adopting the equal strength principle.

In this embodiment, the right end of the embedded portion 62 is provided with a vertical through hole, the left end is provided with a cross through hole which is perpendicular to each other and is communicated with each other, the whole embedded portion 62 is arranged in the inner cavity of the main pipe 1, and the main pipe 1, the vertical pipe 4 and the sleeve splicing joint 6 are fixedly connected with each other through the through hole which is formed on the front surface of the main pipe 1 through the shear pin 11.

In this embodiment, the aluminum alloy truss has a cross section size of 1480mm × 750mm, and is an aluminum alloy structure with a height of 1500mm or less, which can span 50m-70m and has a certain bearing capacity, and sub-trusses with a cross section size of 760mm × 600mm or less can be installed between the inclined tubes 3 (directly inserted without bolts and fittings).

In this embodiment, the main pipe 1 is a circular pipe with a diameter of 110mm and a wall thickness of 10 mm; the auxiliary pipe 2 and the vertical pipe 4 are round pipes with the diameter of 50mm and the wall thickness of 4mm, round pipes with the diameter of 70mm and the wall thickness of 6mm, the inclined pipe 3 is a round pipe with the diameter of 50mm and the wall thickness of 4mm, and the main pipe 1, the auxiliary pipe 2, the inclined pipe 3 and the vertical pipe 4 are all made of 6082-T6.

The working principle is as follows: the cross section size of this practical aluminum alloy truss is 1480mm 750 mm. The aluminum alloy truss structure is an aluminum alloy structure which has a height of less than 1500mm, can span 50-70 m and has certain bearing capacity, a rhombic supporting structure formed by four inclined pipes 3 is arranged between adjacent vertical pipes 4 in each truss structure unit, the four inclined pipes 3 are connected between two main pipes 1 to form a herringbone inclined strut, an included angle formed between the two inclined pipes is 42-48 degrees, one vertex of the triangular supporting structure is a middle point of the main pipe 1, the herringbone inclined strut can accommodate 760mm x 600mm aluminum alloy trusses to be directly inserted into the herringbone inclined struts, connection of primary and secondary trusses can be easily achieved, and a secondary pipe 12 is connected to the middle point of the two main pipes 1 in the width direction;

in addition, the main pipes are sequentially connected in the length direction of the aluminum alloy truss structure through sleeve splicing joints 6. Be fixed in the both sides of connecting portion 61 by embedding portion 62, the nested is inside being responsible for 1 of both sides to it is spacing to run through shear pin 11, prevents that the integral connection under the traditional butt weld atress destruction condition from becoming invalid. The sleeve and the main pipe 1 are connected without welding seams. The connection reliability of the main pipe 1 and the sleeve part is further improved directly by the guarantee of the double-channel vertical shear pin 11.

Finally, the embodiments described above are described to facilitate understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.

Claims

1. The utility model provides a super bearing aluminum alloy truss of span more than 50m, is including being responsible for (1), auxiliary pipe (2), pipe chute (3) and standpipe (4), its characterized in that: the main pipe (1), the secondary pipes (2) and the vertical pipes (4) are arranged along the length direction, the width direction and the height direction of the aluminum alloy truss structure respectively, a truss structure unit is formed by taking the adjacent vertical pipes (4) along the length direction of the main pipe (1) as boundaries, a plurality of repeated truss structure units are finally formed, in each truss structure unit, a triangular supporting structure is arranged between the adjacent vertical pipes (4), inclined slotted holes (5) are horizontally and uniformly distributed on the side surface of the main pipe (1), the triangular supporting structure is formed by two inclined pipes (3) and the main pipe (1), the two inclined pipes (3) are connected between the two main pipes (1), an included angle formed between the two inclined pipes (3) is 62-67 degrees, one vertex of the triangular supporting structure is the middle point of the main pipe (1), in each truss structure unit, the secondary pipes (2) are connected at the middle points of the two main pipes (1) along the width direction, the main pipes (1) are sequentially connected through sleeve splicing joints (6) along the length direction of the aluminum alloy truss structure.

2. The aluminum alloy truss of claim 1, wherein the span of 50m or more is superheavy, characterized in that: the inner diameter of each inclined slotted hole (5) is slightly larger than the outer diameter of the inclined pipe (3), the outward inclination included angle between each pair of two adjacent inclined slotted holes (5) is about 42-48 degrees, the horizontal middle part of each pair of inclined slotted holes (5) is provided with a mounting hole (7), the inner diameter of the mounting hole (7) is slightly larger than the outer diameter of the vertical pipe (4), and the mounting hole (7) and the inclined slotted holes (5) are communicated with the inner cavity of the main pipe (1).

3. The aluminum alloy truss of claim 1, wherein the span of 50m or more is superheavy, characterized in that: the two ends of the vertical pipe (4) respectively penetrate through the mounting holes (7) and are arranged in the inner cavities of the two parallel main pipes (1), the vertical pipes (4) at the two tail ends of the main pipes (1) are arranged, the neck adding plates (8) are fixedly arranged at included angles of the two main pipes (1), and the two adjacent vertical pipes (4) and the two horizontal main pipes (1) form a unit body of the truss by taking the boundary as a boundary.

4. The aluminum alloy truss of claim 1, wherein the span of 50m or more is superheavy, characterized in that: two pairs of inclined slotted holes (5) with outward inclination included angles of 132 DEG and 138 DEG are formed in the two side faces of the middle part of the vertical pipe (4), and the inclined slotted holes (5) on the surface of the vertical pipe (4) and the inclined slotted holes (5) on the corresponding main pipe (1) in the same structural unit are in the same inclination.

5. The aluminum alloy truss of claim 1, wherein the span of 50m or more is superheavy, characterized in that: a welding part (9) is arranged between the upper end part of the inclined pipe (3) and the bottom end face of the main pipe, the upper end of the inclined pipe (3) in the same structural unit is arranged in the inner cavity of the main pipe (1) through an inclined slotted hole (5), and the lower end of the inclined pipe is arranged in the inner cavity of the vertical pipe (4) through the inclined slotted hole (5).

6. The aluminum alloy truss of claim 1, wherein the span of 50m or more is superheavy, characterized in that: the sleeve splicing joint (6) is composed of a connecting portion (61) and an embedded portion (62), the connecting portion (61) is connected with the horizontal main pipe (1) through a connecting pin (10), and the back end face of the connecting portion (61) is fixedly connected with the embedded portion (62).

7. The aluminum alloy truss of claim 6, wherein the span of 50m or more is superheavy, characterized in that: the right end of embedding portion (62) is opened there is vertical through-hole, and open the cross through-hole that has mutually perpendicular intercommunication in the left end, and the whole of embedding portion (62) is arranged in the inner chamber of being responsible for (1), be responsible for (1) and standpipe (4), sleeve concatenation joint (6) and all pass through the through-hole fixed connection that is responsible for (1) positive surface and open and have through-hole through shear pin (11).

8. The aluminum alloy truss of claim 1, wherein the span of 50m or more is superheavy, characterized in that: the aluminum alloy truss has the cross section size of 1480mm 750mm, is an aluminum alloy structure with the height of 1500mm below, can span 50m-70m and has certain bearing capacity, and the secondary truss with the cross section of 760mm 600mm and below can be installed between the inclined pipes (3).

9. The aluminum alloy truss of claim 1, wherein the span of 50m or more is superheavy, characterized in that: the main pipe (1) is a circular pipe with the diameter of 110mm and the wall thickness of 10 mm; vice pipe (2) and standpipe (4) be diameter 50mm, wall thickness 4 mm's pipe and diameter 70mm, wall thickness 6 mm's pipe, pipe chute (3) be diameter 50mm, wall thickness 4 mm's pipe, the material of being responsible for (1), vice pipe (2), pipe chute (3) and standpipe (4) be 6082-T6.