Pipe truss and its transition joint

Abstract

The application discloses a pipe truss and a turning node thereof, wherein the turning node of the pipe truss comprises a chord section (10) and a plug-in plate section (20), the chord section (10) comprises a first chord (11) and a second chord (12) which are fixed at an angle with each other to form a corner, and the first chord (11) and the second chord (12) are further connected through the plug-in plate section (20) at the corner. By arranging the plug-in plate section, the connection of the first chord and the second chord can be reinforced through the plug-in plate section, so that the reliable transmission of the axial force and the bending moment of the turning node is ensured. In addition, since the connection of the first chord and the second chord is reinforced through the plug-in plate section, the butt welding seam of the first chord and the second chord can not be required to be too high, so that the construction difficulty is reduced and the node safety is ensured.

Description

Technical Field

[0001] This application relates to the field of architecture, and more specifically, to a tubular truss and its turning nodes. Background Technology

[0002] Steel pipe trusses, as a commonly used spatial structure, can achieve many different architectural shapes. For example, architectural shapes can be achieved by designing bent pipe trusses. However, when the bending angle is large, for example... Figure 1 As shown, at the bend in the string (e.g.) Figure 1 The bending positions P1 of the upper chord and P2 of the lower chord require the formation of inclined end faces, which makes welding difficult and makes it impossible to guarantee the quality of the weld. Consequently, the strength of the bending points and the entire truss may not meet the design requirements.

[0003] Therefore, how to simplify construction and ensure structural safety is the technical problem that this application needs to solve. Summary of the Invention

[0004] In view of this, this application proposes a tubular truss to simplify construction and improve the structural strength at the turning points.

[0005] A turning point of a tubular truss, wherein the turning point of the tubular truss includes a chord portion and a plate portion, the chord portion including a first chord and a second chord fixed at an angle to each other to form a turn, and at the turn, the first chord and the second chord are also connected by the plate portion.

[0006] Optionally, the insert plate portion includes an insert plate, and the connecting end of the first chord and the second chord is provided with a slot for inserting the insert plate, and the insert plate is welded to the slot.

[0007] Optionally, the insert plate portion includes a wing plate portion disposed on the outer side of the corner, the wing plate portion being connected to the edge of the insert plate and perpendicular to the plate surface of the insert plate.

[0008] Optionally, the wing plate portion includes a first wing plate disposed parallel to the axis of the first chord and a second wing plate disposed parallel to the axis of the second chord.

[0009] Optionally, the thickness of the insert plate, the first wing plate, and the second wing plate is not less than the wall thickness of the chord section, the length of the first wing plate and the second wing plate is not less than twice the outer diameter of the chord section, and the width of the first wing plate and the second wing plate is not less than the outer diameter of the chord section.

[0010] Optionally: the distance from the first wing plate to the first chord is 45mm-55mm, and the distance from the second wing plate to the second chord is 45mm-55mm; and / or, the first wing plate and the second wing plate are respectively welded to the insert plate.

[0011] Optionally, a third wing plate is provided on the inner side of the corner, the third wing plate being connected to the edge of the insert plate and perpendicular to the surface of the insert plate.

[0012] Optionally: the thickness of the third wing plate is not less than the wall thickness of the chord portion, and the width of the third wing plate is not less than the outer diameter of the chord portion; and / or, the third wing plate is welded to the insert plate.

[0013] Optionally, a web member is provided on the inner side of the corner, and the web member is provided with a web member slot for inserting the insert plate.

[0014] This application also provides a tubular truss, wherein the tubular truss includes the turning nodes of this application.

[0015] According to the technical solution of this application, by setting the insert plate, the connection between the first chord and the second chord can be strengthened through the insert plate, ensuring the reliable transmission of axial force and bending moment at the turning point. Furthermore, since the connection between the first chord and the second chord is strengthened by the insert plate, the requirements for the butt welds of the first chord and the second chord do not need to be too high, thus reducing the construction difficulty and ensuring the safety of the joint.

[0016] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application, and the illustrative embodiments and descriptions thereof are used to explain this application. In the drawings:

[0018] Figure 1 This is a structural schematic diagram of the turning point of the tubular truss;

[0019] Figure 2 This is a structural schematic diagram of a turning node of a tubular truss according to one embodiment of this application;

[0020] Figure 3 for Figure 2 Enlarged view at P1';

[0021] Figure 4 for Figure 3 A partial sectional view;

[0022] Figure 5 for Figure 2 Enlarged view at P2';

[0023] Figure 6 for Figure 5 A partial sectional view. Detailed Implementation

[0024] The technical solution of this application will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] According to one aspect of this application, a turning point of a tubular truss is provided, wherein the turning point of the tubular truss includes a chord portion 10 and a plate portion 20, the chord portion 10 including a first chord 11 and a second chord 12 fixed at an angle to each other to form a corner, wherein at the corner, the first chord 11 and the second chord 12 are also connected by the plate portion 20.

[0026] By providing the insert plate 20, the connection between the first chord 11 and the second chord 12 can be strengthened, ensuring reliable transmission of axial force and bending moment at the turning point. Furthermore, since the connection between the first chord 11 and the second chord 12 is strengthened by the insert plate 20, the requirements for the butt welds of the first chord 11 and the second chord 12 do not need to be too stringent, thus reducing construction difficulty and ensuring node safety.

[0027] Specifically, the direct connection between the first chord 11 and the second chord 12 ensures the reliable transmission of axial force at the turning point. The insert plate 20 strengthens the connection between the first chord 11 and the second chord 12 on the one hand, and ensures the reliable transmission of bending moment at the turning point on the other hand.

[0028] The insert portion 20 can be of a suitable form to connect the first chord 11 and the second chord 12. Specifically, such as... Figure 3 and Figure 5 As shown, the insert plate portion 20 may include an insert plate 21. The connecting end of the first chord 11 and the second chord 12 is provided with a slot for inserting the insert plate 21, and the insert plate 21 is welded to the slot. The slot can be configured as needed, and may be located at appropriate positions on the first chord 11 and the second chord 12. Preferably, to ensure smooth load transmission, such as... Figure 4 and Figure 6 As shown, the slots can be arranged along the axial longitudinal section of the first chord 11 and the second chord 12, so that after welding, the surface of the insert plate 21 lies within the plane formed by the axes of the first chord 11 and the second chord 12. Furthermore, to allow the insert plate 21 to be inserted into the entire cross-section of the first chord 11 and the second chord 12, both the first chord 11 and the second chord 12 can be provided with paired through slots, the paired slots being radially opposite each other. The insert plate 21 can be inserted into the slots and extend radially out of the first chord 11 and the second chord 12, as shown. Figure 4 and Figure 6 As shown.

[0029] To further improve the strength and stiffness at the turning point, preferably, the insert plate portion 20 may include a wing plate portion disposed on the outer side of the corner, the wing plate portion being connected to the edge of the insert plate 21 and perpendicular to the surface of the insert plate 21. Thus, the tensile strength of the turning point can be improved by the wing plate portion.

[0030] The wing section can take an appropriate form, specifically, such as... Figure 3 and Figure 5 As shown, the wing plate portion may include a first wing plate 22 disposed parallel to the axis of the first chord 11 and a second wing plate 23 disposed parallel to the axis of the second chord 12. The first wing plate 22 and the second wing plate 23 are respectively welded to the insert plate 21. Furthermore, the first wing plate 22 and the second wing plate 23 can be connected to each other, for example, by welding them together at their intersection. Specifically, one of the first wing plate 22 and the second wing plate 23 can extend beyond the other for welding at the intersection. For ease of construction, one can extend beyond the other by at least 20mm, and the insert plate 21, the first wing plate 22, and the second wing plate 23 are welded together using double-sided fillet welds.

[0031] Understandably, to ensure the turning point achieves the required strength and stiffness, the corresponding parameters (e.g., length, width, thickness) of the insert plate 21, the first wing plate 22, and the second wing plate 23 can be set according to the material, diameter, and wall thickness of the chord section 10. Preferably, the thickness of the insert plate 21, the first wing plate 22, and the second wing plate 23 is not less than the wall thickness of the chord section 10, the length of the first wing plate 22 and the second wing plate 23 is not less than twice the outer diameter of the chord section 10, and the width of the first wing plate 22 and the second wing plate 23 is not less than the outer diameter of the chord section 10.

[0032] To facilitate welding operations, appropriate spacing can be provided between the first flange 22, the second flange 23 and the corresponding first chord 11 and second chord 12. For example, the distance from the first flange 22 to the first chord 11 can be 45mm-55mm, and the distance from the second flange 23 to the second chord 12 can be 45mm-55mm.

[0033] Furthermore, the materials of the insert plate 21, the first wing plate 22, and the second wing plate 23 can be selected as needed to match and weld with the material of the chord section 10. For example, if the chord section 10 is in the form of a steel pipe, then the insert plate 21, the first wing plate 22, and the second wing plate 23 can be plates of the same material.

[0034] For different chord sections 10 of the tubular truss, other auxiliary reinforcement measures can be applied according to different stress requirements and structures.

[0035] For example, in Figure 3 and Figure 4 In the illustrated embodiment, the inner side of the turning point is unsupported. Therefore, a third wing plate 24 can be provided on the inner side of the corner. The third wing plate 24 is connected to the edge of the insert plate 21 and perpendicular to the surface of the insert plate 21. By providing the third wing plate 24, the compressive strength of the turning point can be enhanced.

[0036] The third wing plate 24 can be welded to the insert plate 21. Furthermore, its parameters can be set according to the material, pipe diameter, and wall thickness of the chord member 10. Preferably, the thickness of the third wing plate 24 is not less than the wall thickness of the chord member 10, and the width of the third wing plate 24 is not less than the outer diameter of the chord member 10. The length of the third wing plate 24 can be set according to the angle of the turning point, so that its two ends are as close as possible to the first chord member 11 and the second chord member 12 respectively, facilitating welding construction.

[0037] Optionally, in Figure 5 and Figure 6 In the illustrated embodiment, a web member 30 is provided on the inner side of the corner, and the web member 30 is provided with a web member slot for inserting the insert plate 21. In this embodiment, the web member 30 can serve as an auxiliary measure to improve compressive strength. A radially opposing through-type web member slot can be provided on the web member 30 to allow the insert plate 21 to pass through the web member 30 and be welded to the web member slot.

[0038] According to another aspect of this application, a tubular truss is provided, wherein the tubular truss includes the turning node of this application.

[0039] By providing the insert plate 20, the connection between the first chord 11 and the second chord 12 can be strengthened, ensuring reliable transmission of axial force and bending moment at the turning point. Furthermore, since the connection between the first chord 11 and the second chord 12 is strengthened by the insert plate 20, the direct connection between the first chord 11 and the second chord 12 does not require excessive precision, thus reducing construction difficulty.

[0040] The tubular truss of this application may include at least one of the aforementioned turning nodes. For example, as... Figure 2 As shown, the tubular truss can form Figure 1 The shown transition method creates two transition nodes P1' and P2' on the upper and lower chords. At the transition node P1' of the upper chord, if a web member 30 is not provided, a transition node can be used... Figure 3 and Figure 4 It has the form of a third wing plate 24; at the turning node P2' of the lower chord, due to the presence of a web member 30, it can adopt... Figure 5 and Figure 6 As shown in the figure.

[0041] The following description, with reference to the accompanying drawings, illustrates the creation of the transition nodes in this application.

[0042] for Figure 3 and Figure 4 In the embodiment shown, slots can be pre-made on the first chord 11 and the second chord 12, and the insert plate 21, the first wing plate 22, and the second wing plate 23 can be welded together. Subsequently, the insert plate 21 can be inserted into the slot on site to complete the welding of the insert plate 21, the first chord 11, the second chord 12, and the third wing plate 24 to each other.

[0043] for Figure 5 and Figure 6 In the illustrated embodiment, slots can be pre-made on the first chord 11 and the second chord 12, and a slot can be made on the web member 30. The insert plate 21, the first wing plate 22, and the second wing plate 23 can then be welded together. Subsequently, the insert plate 21 can be inserted into the slot on-site to complete the welding of the insert plate 21, the first chord 11, the second chord 12, and the web member 30 together.

[0044] The preferred embodiments of this application have been described in detail above. However, this application is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this application, various simple modifications can be made to the technical solution of this application, and these simple modifications all fall within the protection scope of this application.

[0045] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this application will not describe the various possible combinations separately.

[0046] Furthermore, various different implementations of this application can be combined in any way, as long as they do not violate the spirit of this application, they should also be regarded as the content disclosed in this application.

Claims

1. A transition node for a tubular truss, characterized in that, The turning point of the tubular truss includes a chord section (10) and a plate section (20). The chord section (10) includes a first chord (11) and a second chord (12) fixed at an angle to each other to form a turning angle. At the turning angle, the first chord (11) and the second chord (12) are also connected by the plate section (20). The insert plate part (20) includes an insert plate (21), and the connecting end of the first chord (11) and the second chord (12) is provided with a slot for inserting the insert plate (21), and the insert plate (21) is welded to the slot; The insert plate portion (20) includes a wing plate portion disposed on the outer side of the corner, the wing plate portion being connected to the edge of the insert plate (21) and perpendicular to the plate surface of the insert plate (21); The wing plate portion includes a first wing plate (22) arranged parallel to the axis of the first chord (11) and a second wing plate (23) arranged parallel to the axis of the second chord (12). The thickness of the insert plate (21), the first wing plate (22), and the second wing plate (23) is not less than the wall thickness of the chord part (10), the length of the first wing plate (22) and the second wing plate (23) is not less than twice the outer diameter of the chord part (10), and the width of the first wing plate (22) and the second wing plate (23) is not less than the outer diameter of the chord part (10). The distance from the first wing plate (22) to the first chord (11) is 45mm-55mm, and the distance from the second wing plate (23) to the second chord (12) is 45mm-55mm; and / or, The first wing plate (22) and the second wing plate (23) are respectively welded to the insert plate (21).

2. The turning node of the tubular truss according to claim 1, characterized in that, A third wing plate (24) is provided on the inner side of the corner. The third wing plate (24) is connected to the edge of the insert plate (21) and is perpendicular to the plate surface of the insert plate (21).

3. The turning node of the tubular truss according to claim 2, characterized in that: The thickness of the third wing plate (24) is not less than the wall thickness of the chord section (10), and the width of the third wing plate (24) is not less than the outer diameter of the chord section (10); and / or, The third wing plate (24) is welded to the insert plate (21).

4. The turning node of the tubular truss according to claim 1, characterized in that, A web member (30) is provided on the inner side of the corner, and the web member (30) is provided with a web member slot for inserting the insert plate (21).

5. A tubular truss, characterized in that, The tubular truss includes the turning node as described in any one of claims 1-4.

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