Connecting node

Abstract

The utility model provides a connecting node. The connecting node comprises a column pipe, a vertical web member, at least one lower chord member and at least one diagonal web member, the bottom end of the column pipe is fixed on the support, and a sealing plate is arranged at the top end of the column pipe; the bottom end of the vertical web member is fixed on a sealing plate of the column pipe; one end of the at least one lower chord member is fixed on the outer side surface of the column pipe; and one end of the diagonal web member is fixed at the crossed position of the lower chord member and the column pipe. By means of the connecting structure, the force transmission path between the space steel structure roof and the support can be more concise, and the stress reliability of a connecting joint is improved. Furthermore, the welding seam distance can be increased, the stress concentration effect is greatly reduced, and the node connection quality is improved.

Description

Technical Field

[0001] The present application relates to the technical field of support connection, and in particular to a connection node. Background Art

[0002] At present, the large-span space roofs of domestic railway passenger stations and other public buildings generally adopt spatial grid steel structure systems, and the connection between the steel structure roof and the support usually adopts cast steel connection nodes or stiffening plate connection nodes.

[0003] However, the casting process of the steel casting connection nodes is complicated and the cost is relatively high; the stiffening plate connection nodes are formed by welding together multiple steel plates, and the connection welds between the stiffening plates are relatively concentrated, which usually causes stress concentration. In addition, the stiffening plate connection nodes often need to be specially designed according to the specific project, and other special miscellaneous steel components need to be added when necessary, which makes the construction more complicated and the quality is difficult to guarantee, and may also have an adverse effect on the stress condition of the node.

[0004] In summary, since the connection nodes between the steel structure roof and the support in the prior art have the shortcomings as described above, how to propose a better connection node so as to make the force transmission path between the spatial steel structure roof and the support simpler and improve the force reliability of the connection node is a problem that needs to be urgently solved in this field. Utility Model Content

[0005] In view of this, the utility model provides a connection node, so that the force transmission path between the spatial steel structure roof and the support can be more concise, and the force reliability of the connection node can be improved.

[0006] The technical solution of the utility model is specifically achieved as follows:

[0007] A connection node comprises: a column tube, a vertical web member, at least one lower chord member and at least one diagonal web member;

[0008] The bottom end of the column tube is fixed on the support, and a sealing plate is arranged on the top of the column tube; the bottom end of the vertical web bar is fixed on the sealing plate of the column tube;

[0009] One end of the at least one lower chord is fixed to the outer side of the column tube; one end of the diagonal web is fixed at the intersection of the lower chord and the column tube.

[0010] Preferably, three lower chord bars and three diagonal web bars are provided respectively, and are arranged on three sides of the column tube respectively.

[0011] Preferably, the column tube is a square tube of preset length.

[0012] Preferably, the column tube is a round tube of preset length.

[0013] Preferably, the column tube is provided with cross stiffening ribs inside, and self-compacting high-strength concrete is poured inside the column tube.

[0014] As can be seen above, in the connection node of the utility model, the large-span space grid steel structure roof is connected to the support by using column tubes, vertical web members, at least one lower chord member and at least one diagonal web member, so that force can be directly transmitted along each tube or rod, making the force transmission path clearer and improving the force reliability of the connection node. Furthermore, by setting the column tube and fixing the vertical web members, lower chord members and diagonal web members to the column tube, the weld spacing can be enlarged compared to the spherical node, which greatly reduces the stress concentration effect and improves the quality of the node connection. Moreover, the present application can directly adopt the tube or rod structure connection, which has a simple processing technology and is easy to construct and install, thereby reducing the project cost. By setting cross stiffening ribs and self-compacting high-strength concrete in the column tube, the stiffness and bearing capacity of the connection node are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view of a connection node in an embodiment of the utility model.

[0016] Figure 2 It is a left view of the connection node in the embodiment of the utility model.

[0017] Figure 3 It is a cross-sectional view of a column tube in one embodiment of the utility model.

[0018] Figure 4 It is a cross-sectional view of a column tube in another embodiment of the utility model. DETAILED DESCRIPTION

[0019] In order to make the technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] like Figures 1 to 4 As shown, the utility model provides a connection node, comprising: a column tube 1, a vertical web member 2, at least one lower chord member 3 and at least one diagonal web member 4;

[0021] The bottom end of the column tube 1 is fixed on the support 100, and a sealing plate 13 is provided on the top of the column tube 1; the bottom end of the vertical web bar 2 is fixed on the sealing plate 13 of the column tube 1;

[0022] One end of the at least one lower chord 3 is fixed to the outer side surface of the column tube 1 ; one end of the diagonal web 4 is fixed to the intersection of the lower chord 3 and the column tube 1 .

[0023] In the technical solution of the utility model, the vertical web member 2, at least one lower chord member 3 and at least one diagonal web member 4 can be welded to the large-span space grid steel structure roof by connecting the column tube with the support, so that the column tube 1, the vertical web member 2, at least one lower chord member 3 and at least one diagonal web member 4 can be used to connect the large-span space grid steel structure roof with the support, and the force can be directly transmitted along each tube or rod, so that the force transmission path is clearer and the force reliability of the connection node is improved. By setting the column tube 1, and fixing the vertical web member 2, the lower chord member 3 and the diagonal web member 4 on the column tube 1, compared with the spherical node, the weld spacing can be enlarged, the stress concentration effect is greatly reduced, and the quality of the node connection is improved. Moreover, the present application can directly adopt the tube or rod structure connection, the processing technology is simple, the construction and installation are simple, and the project cost is reduced.

[0024] In the technical solution of the present utility model, a variety of implementation methods can be used to implement the above-mentioned connection nodes. The following will take several implementation methods as examples to introduce the technical solution of the present utility model in detail.

[0025] For example, preferably, in a specific embodiment of the present invention, Figure 1 and Figure 2 As shown, the lower chord rod 3 and the diagonal web rod 4 can be provided with three respectively, and are respectively arranged on three sides of the column tube 1 (for example, they can be respectively arranged Figure 1 left side, right side, and rear side).

[0026] For another example, preferably, in a specific embodiment of the present utility model, Figure 3 As shown, the column tube 1 can be a square tube of a preset length.

[0027] In addition, as an example, in a preferred specific embodiment of the present utility model, as Figure 4 As shown, the column tube 1 may also be a round tube of a preset length.

[0028] In addition, as an example, in a preferred specific embodiment of the present utility model, as Figure 3 and Figure 4 As shown, the column tube 1 is provided with a cross stiffening rib 11 inside, and self-compacting high-strength concrete is poured inside the column tube 1, so that the cross stiffening rib and concrete can be used to improve the bearing capacity of the column tube and the rigidity of the connection node.

[0029] In summary, in the technical solution of the utility model, the large-span space grid steel structure roof is connected to the support by using the column tube 1, the vertical web member 2, at least one lower chord member 3 and at least one diagonal web member 4, so that the force can be directly transmitted along each tube or rod, so that the force transmission path is clearer and the force reliability of the connection node is improved. Furthermore, by setting the column tube 1, and fixing the vertical web member 2, the lower chord member 3 and the diagonal web member 4 on the column tube 1, compared with the spherical node, the weld spacing can be enlarged, the stress concentration effect is greatly reduced, and the quality of the node connection is improved. Moreover, the present application can directly adopt the tube or rod structure connection, the processing technology is simple, the construction and installation are simple, and the project cost is reduced. By setting cross stiffening ribs and self-compacting high-strength concrete in the column tube, the stiffness and bearing capacity of the connection node are improved.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A connection node, characterized in that: include: column tube, vertical web members, at least one lower chord and at least one diagonal web member; The bottom end of the column tube is fixed on the support, and a sealing plate is arranged on the top of the column tube; the bottom end of the vertical web bar is fixed on the sealing plate of the column tube; One end of the at least one lower chord is fixed to the outer side of the column tube; one end of the diagonal web is fixed at the intersection of the lower chord and the column tube.

2. The connection node according to claim 1, characterized in that: The lower chord bars and the diagonal web bars are provided in three numbers respectively and are arranged on three sides of the column tube respectively.

3. The connection node according to claim 1, characterized in that: The column tube is a square tube of a preset length.

4. The connection node according to claim 1, characterized in that: The column tube is a round tube of a preset length.

5. The connection node according to claim 1, characterized in that: The column tube is provided with cross stiffening ribs inside, and self-compacting high-strength concrete is poured inside the column tube.

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