Connecting node of pipe truss chord member and gable column of greenhouse

Abstract

The utility model discloses a connecting node of a greenhouse pipe truss chord member and a gable column. A pipe truss comprises a truss lower chord member. The connecting node comprises a truss lower chord connecting sleeve and a gable column connecting sleeve; one end of the truss lower chord connecting sleeve is fixedly connected with the bottom of the truss lower chord, and the other end of the truss lower chord connecting sleeve is movably connected with the gable column connecting sleeve in a sleeving manner; the end, away from the truss lower chord connecting sleeve, of the gable column connecting sleeve is fixedly connected with the gable column. According to the connecting node of the pipe truss chord member and the gable column of the greenhouse, vertical deformation between the truss chord member and the gable column of the greenhouse can be effectively released, horizontal force can be effectively transmitted, and the node is easy and convenient to install and construct.

Description

Technical Field

[0001] The utility model relates to the technical field of long - span steel structures, and specifically refers to a connection node between the chord of a greenhouse pipe truss and a gable column. Background Technique

[0002] Pipe trusses are often used in large - span shed - type structures. For fully enclosed greenhouses, gable columns need to be set at the ends. The gable columns are usually also made into pipe truss structures. Generally, the gable columns do not transfer the vertical load of the main truss and mainly bear the lateral wind load. In fact, they act as wind columns. Therefore, in structural design, it is necessary to consider making the connection node between the gable column and the chord of the greenhouse pipe truss in a form that releases the vertical constraint. In small - and medium - span rigid - frame structures, the gable column is connected to the main rigid - frame beam through an elliptical hole node as shown in Figure 1 or a Z - shaped plate as shown in Figure 2 to form an effect of releasing the vertical constraint and only transmitting the horizontal force. For large - span shed - type truss structures, due to the large vertical displacement of large - span space structures, it is not appropriate to use traditional Z - shaped plates or elliptical bolt holes for connection, and they cannot adapt to large vertical deformations and effectively transmit horizontal forces. Content of the Utility Model

[0003] To overcome the deficiencies of the above - mentioned technology, the purpose of the utility model is to provide a connection node between the chord of a greenhouse pipe truss and a gable column. This node can effectively release the vertical deformation between the chord of the greenhouse truss and the gable column, effectively transmit the horizontal force, and the node installation and construction are simple and convenient.

[0004] To achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0005] A connection node between the chord of a greenhouse pipe truss and a gable column, the pipe truss includes a truss lower chord; the connection node includes a truss lower chord connection sleeve and a gable column connection sleeve; one end of the truss lower chord connection sleeve is fixedly connected to the bottom of the truss lower chord, and the other end is movably sleeved with the gable column connection sleeve; one end of the gable column connection sleeve away from the truss lower chord connection sleeve is fixedly connected to the gable column.

[0006] Preferably, the diameter of the truss lower chord connection sleeve is larger than that of the gable column connection sleeve, and one end of the gable column connection sleeve is inserted into the interior of the truss lower chord connection sleeve.

[0007] Preferably, an outer hoop ring of the gable column connection sleeve is fixedly arranged on the upper part of the outer side of the gable column connection sleeve.

[0008] Preferably, an upper end limit snap ring and a lower end limit snap ring are fixedly arranged on the inner surface of the truss lower chord connecting sleeve; the gable column connecting sleeve outer hoop is arranged between the upper end limit snap ring and the lower end limit snap ring, restricting the movement area of the gable column connecting sleeve outer hoop between the upper end limit snap ring and the lower end limit snap ring.

[0009] Preferably, a gap is left between the gable column connecting sleeve and the lower end limit snap ring, and a gap is left between the gable column connecting sleeve outer hoop and the truss lower chord connecting sleeve, so that the gable column connecting sleeve can move in the area between the upper end limit snap ring and the lower end limit snap ring.

[0010] Preferably, the gable column connecting sleeve and the gable column are connected by a flange.

[0011] Preferably, a gable column connecting flange is fixedly arranged on the gable column; a gable column connecting sleeve connecting flange is fixedly arranged on the gable column connecting sleeve; the gable column connecting flange is fixedly connected to the gable column connecting sleeve connecting flange.

[0012] Preferably, the gable column connecting flange and the gable column connecting sleeve connecting flange are fixedly connected by flange connecting bolts.

[0013] Preferably, the distance L1 between the lower end of the upper end limit snap ring and the upper end of the gable column connecting sleeve outer hoop is greater than the vertical downward deflection generated by the load on the pipe truss except for its own weight; the distance L2 between the upper end of the lower end limit snap ring and the lower end of the gable column connecting sleeve outer hoop is greater than the vertical upward deflection generated by the pipe truss under the action of wind load.

[0014] Preferably, the distance L3 between the lower end of the truss lower chord connecting sleeve and the top of the flange connecting bolt is greater than the distance L1 between the lower end of the upper end limit snap ring and the upper end of the gable column connecting sleeve outer hoop.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] By adopting a connection node between the chord of the greenhouse pipe truss and the gable column provided by the present utility model, the vertical deformation between the greenhouse truss chord and the gable column can be effectively released, and the horizontal force can be effectively transmitted. Moreover, the node installation and construction are simple and convenient, and it has the advantage of a wide application range, especially suitable for large-span shed truss structures. Description of the Drawings

[0017] Figure 1 It is a structural schematic diagram of an elliptical hole node in the prior art;

[0018] Figure 2 It is a connection schematic diagram of a Z-shaped plate and a rigid frame beam in the prior art;

[0019] Figure 3 It is a schematic layout diagram of the greenhouse gable structure;

[0020] Figure 4 It is a schematic structural diagram of the release connection node between the chord member of the greenhouse pipe truss and the sleeve of the gable column in the present utility model;

[0021] Figure 5 It is Figure 4 the schematic A - A sectional view in

[0022] Figure 6 It is Figure 4 the schematic B - B sectional view in

[0023] Figure 7 It is Figure 4 the schematic C - C sectional view in

[0024] Figure 8 It is Figure 4 the schematic D - D sectional view in

[0025] In the figure: 1. Pipe truss; 2. Support short column; 3. Gable horizontal support truss; 4. Gable column; 5. Lower chord member of the truss; 6. Connection node; 7. Connection sleeve of the lower chord member of the truss; 8. Connection sleeve of the gable column; 9. Connection flange of the connection sleeve of the gable column; 10. Connection flange of the gable column; 11. Flange connection bolt; 12. Outer hoop of the connection sleeve of the gable column; 13. Upper end limit snap ring; 14. Lower end limit snap ring;

[0026] L1: The distance between the lower end of the upper end limit snap ring and the upper end of the outer hoop of the connection sleeve of the gable column; L2: The distance between the upper end of the lower end limit snap ring and the lower end of the outer hoop of the connection sleeve of the gable column; L3: The distance from the lower end of the connection sleeve of the lower chord member of the truss to the top of the flange connection bolt of the gable column sleeve; D1: The outer diameter of the lower chord member of the truss; D2: The outer diameter of the connection sleeve of the lower chord member of the truss; D3: The outer diameter of the gable column; D4: The outer diameter of the connection sleeve of the gable column. Specific embodiments

[0027] In order to better explain the present utility model, the main content of the present utility model will be further clarified below in conjunction with specific embodiments, but the content of the present utility model is not limited to the following embodiments only.

[0028] Embodiment 1

[0029] As Figure 1 shown, the greenhouse gable structure includes a pipe truss 1, a support short column 2, a gable horizontal support truss 3, and a gable column 4. The steel pipe truss 1 includes a lower chord member 5 of the truss, and the lower chord member 5 of the truss is connected to the gable column 4 through a connection node 6.

[0030] A connecting node between the chord member of a greenhouse pipe truss and a gable column of the present utility model is used to connect the lower chord member 5 of the truss and the gable column 4, which can effectively release the vertical deformation between the chord member of the greenhouse pipe truss and the gable column 4 and effectively transfer the horizontal force.

[0031] As Figures 4 to 8 shown, the connecting node of the present utility model mainly consists of a lower chord member connecting sleeve 7 of the truss, a gable column connecting sleeve 8, a gable column connecting sleeve connecting flange 9, and a gable column connecting flange 10.

[0032] Among them, between the gable column 4 and the lower chord member 5 of the truss, they are movably nested and connected through the lower chord member connecting sleeve 7 of the truss and the gable column connecting sleeve 8, that is, one end of the lower chord member connecting sleeve 7 is fixedly connected to the bottom of the lower chord member 5 of the truss, and the other end is sleeved with the gable column connecting sleeve 8. The diameter of the lower chord member connecting sleeve 7 is larger than that of the gable column connecting sleeve 8, and the gable column connecting sleeve 8 is nested inside the lower chord member connecting sleeve 7.

[0033] An outer hoop ring 12 of the gable column connecting sleeve is provided on the outer surface of the upper part of the gable column connecting sleeve 8 so that the gable column connecting sleeve 8 can have a certain contact surface with the lower chord member connecting sleeve 7 of the truss to facilitate the transfer of horizontal loads.

[0034] In order to release the vertical constraint, a 3mm gap is reserved between the outer hoop ring 12 of the gable column connecting sleeve and the lower chord member connecting sleeve 7 of the truss, and upper and lower limit retaining rings are provided on the inner surface of the lower chord member connecting sleeve 7 of the truss, namely the upper limit retaining ring 13 and the lower limit retaining ring 14. The outer hoop ring 12 of the gable column connecting sleeve is arranged between the upper limit retaining ring 13 and the lower limit retaining ring 14, restricting the movement area of the outer hoop ring 12 of the gable column connecting sleeve between the upper limit retaining ring 13 and the lower limit retaining ring 14. A 3mm gap is reserved between both the upper limit retaining ring 13 and the lower limit retaining ring 14 and the gable column connecting sleeve 8.

[0035] The distance between the lower end of the upper limit retaining ring 13 and the upper end of the outer hoop ring 12 of the gable column connecting sleeve is L1, and L1 needs to be greater than the vertical downward deflection generated by the load other than the self-weight of the greenhouse pipe truss 1. The distance between the upper end of the lower limit retaining ring 14 and the lower end of the outer hoop ring 12 of the gable column connecting sleeve is L2, and L2 needs to be greater than the vertical upward deflection generated by the greenhouse pipe truss 1 under the action of wind load. The distance from the lower end of the lower chord member connecting sleeve 7 to the top of the gable column sleeve flange connecting bolt 11 is L3, and L3 needs to be greater than L1.

[0036] The gable column connecting sleeve 8 and the gable column 4 are connected by flange connecting bolts 11 to the gable column connecting sleeve connecting flange 9 and the gable column connecting flange 10. The gable column connecting flange 10 is fixedly arranged on the gable column 4; the gable column connecting sleeve connecting flange 9 is fixedly arranged on the gable column connecting sleeve 8; the gable column connecting flange 10 and the gable column connecting sleeve connecting flange 9 are fixedly connected by flange connecting bolts 11.

[0037] During construction, first weld and install the components between the gable column connecting sleeve connecting flange 9 and the truss lower chord connecting sleeve 7 on the truss lower chord 5. After the truss is hoisted, then hoist the gable column 4, and fasten the flange with bolts to connect the gable column 4 and the truss lower chord 5, and the construction operation is convenient and fast.

[0038] The working principle of the connection node of the present utility model: After the node is installed, the horizontal load borne by the gable column 4 is transmitted through the outer hoop ring 12 of the gable column connecting sleeve of the node; a free travel L1 is reserved at the upper end of the gable column connecting sleeve 8 to release the vertical downward deflection generated by the remaining loads of the structure except its own weight; a free travel L2 is reserved at the lower end of the outer hoop ring 12 of the gable column connecting sleeve to release the vertical upward deflection generated by the wind load of the structure; the main function of the lower end limit retaining ring 14 provided is to prevent the gable column 4 from falling off from the truss chord under extreme working conditions and ensure the structural safety; the main function of the upper end limit retaining ring 13 provided is to prevent the gable column 4 from directly contacting the truss lower chord 5 when the vertical displacement of the structure exceeds the limit under extreme working conditions, and uniformly contact and bear the force through the upper end limit retaining ring 13 to avoid impact wear of the truss lower chord 5.

Claims

1. A connection node between a greenhouse pipe truss chord and a gable column, the pipe truss comprising a truss lower chord (5); characterized in that: The connection node comprises a truss lower chord connecting sleeve (7) and a gable column connecting sleeve (8); one end of the truss lower chord connecting sleeve (7) is fixedly connected to the bottom of the truss lower chord (5), and the other end is movably sleeved with the gable column connecting sleeve (8); the end of the gable column connecting sleeve (8) away from the truss lower chord connecting sleeve (7) is fixedly connected to the gable column (4).

2. The connection node according to claim 1, characterized in that: The diameter of the truss lower chord connecting sleeve (7) is larger than that of the gable column connecting sleeve (8), and one end of the gable column connecting sleeve (8) is inserted into the interior of the truss lower chord connecting sleeve (7).

3. The connection node according to claim 2, characterized in that: A gable column connecting sleeve outer hoop (12) is fixedly arranged on the upper outer side of the gable column connecting sleeve (8).

4. The connection node according to claim 3, characterized in that: An upper end limit clamp ring (13) and a lower end limit clamp ring (14) are fixedly arranged on the inner surface of the truss lower chord connecting sleeve (7); the outer hoop ring (12) of the gable column connecting sleeve is arranged between the upper end limit clamp ring (13) and the lower end limit clamp ring (14), limiting the movable area of ​​the outer hoop ring (12) of the gable column connecting sleeve to be between the upper end limit clamp ring (13) and the lower end limit clamp ring (14).

5. The connection node according to claim 4, characterized in that: A gap is left between the gable column connecting sleeve (8) and the lower end limit clamping ring (14), and a gap is left between the gable column connecting sleeve outer hoop (12) and the truss lower chord connecting sleeve (7), so that the gable column connecting sleeve (8) can move in the area between the upper end limit clamping ring (13) and the lower end limit clamping ring (14).

6. The connection node according to any one of claims 1 to 5, characterized in that: The gable column connecting sleeve (8) is connected to the gable column (4) via a flange.

7. The connection node according to claim 6, characterized in that: The gable column (4) is fixedly provided with a gable column connecting flange (10); the gable column connecting sleeve (8) is fixedly provided with a gable column connecting sleeve connecting flange (9); the gable column connecting flange (10) is fixedly connected to the gable column connecting sleeve connecting flange (9).

8. The connection node according to claim 7, characterized in that: The gable column connecting flange (10) and the gable column connecting sleeve connecting flange (9) are fixedly connected via flange connecting bolts (11).

9. The connection node according to claim 4, characterized in that: The distance L1 between the lower end of the upper end limiting clamp (13) and the upper end of the gable column connecting sleeve outer hoop (12) is greater than the vertical downward deflection of the tube truss caused by loads other than its own weight; and the distance L2 between the upper end of the lower end limiting clamp (14) and the lower end of the gable column connecting sleeve outer hoop (12) is greater than the vertical upward deflection of the tube truss caused by wind load.

10. The connection node according to claim 8, characterized in that: The distance L3 between the lower end of the truss lower chord connecting sleeve (7) and the top of the flange connecting bolt (11) is greater than the distance L1 between the lower end of the upper end limiting clamp (13) and the upper end of the gable column connecting sleeve outer hoop (12).

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