A new type of steel structure connection node

Abstract

This utility model relates to the technical field of steel structure components, and discloses a novel steel structure connection node, including diagonal web members, vertical web members, and chord members. A sealing plate perpendicular to the diagonal web member is welded to its end. A first connecting plate perpendicular to the sealing plate is provided on the outer side of the sealing plate, penetrating the sealing plate and inserted into the diagonal web member. The side of the sealing plate away from the diagonal web member is welded to the first connecting plate, and the side of the first connecting plate inserted into the diagonal web member is welded to the web plate of the diagonal web member. An end plate perpendicular to the vertical web member is welded to its end. A second connecting plate is welded between the end plate and the vertical web member, perpendicular to the end plate. The end plate is bolted to the chord member, and the second connecting plate is bolted to the first connecting plate. This connection node uses bolted connections, eliminating the need for on-site welding. The node design is simplified, facilitating transportation and on-site construction, and installation is easy. The components undergo hot-dip galvanizing without dead corners, resulting in high-quality rust prevention and a long service life.

Description

Technical Field

[0001] This utility model relates to the field of steel structure technology, and in particular to a novel steel structure connection node. Background Technology

[0002] Existing steel trestle bridges and steel pipe corridors for belt conveyors typically have spans of 18–30m, usually employing a steel truss structure. The height of a single vertical truss section is generally 3–6m. The conventional practice is to weld the vertical and diagonal web members to the chord members on-site. However, on-site welding is strictly prohibited at construction sites. If a single steel truss section is too tall to be packaged and transported as a whole after factory welding, the diagonal and vertical web members must be transported separately to the site and assembled using bolts. While conventional diagonal and vertical web members can be connected using end plate bolts, the chord members require a corbel welded in the factory to connect the vertical and diagonal web members. However, welding corbels to the chord members can result in excessively small angles between corbels and between the corbels and the chord members, leading to problems with proper protection of blind spots during hot-dip galvanizing or painting.

[0003] Therefore, meeting the requirement that welding is not allowed on site, improving the quality of components during hot-dip galvanizing, and achieving the convenience and reliability of construction of steel structure connection nodes with large truss dimensions are urgent problems to be solved. Utility Model Content

[0004] This utility model provides a novel steel structure connection node. This connection node uses bolt connections, eliminating the need for on-site welding. The node design is simplified, facilitating transportation and on-site construction, and installation is easy. Furthermore, the components undergo thorough hot-dip galvanizing without any dead angles, ensuring reliable rust prevention.

[0005] The above-mentioned objective of the utility model is achieved through the following technical solution:

[0006] A novel steel structure connection node includes diagonal web members, vertical web members, and chord members. The ends of the diagonal web members are welded to a sealing plate perpendicular to it. A first connecting plate perpendicular to it is provided on the outer side of the sealing plate. The first connecting plate passes through the sealing plate and is inserted into the diagonal web member. The side of the sealing plate away from the diagonal web member is welded to the first connecting plate. The side of the first connecting plate inserted into the diagonal web member is welded to the web plate of the diagonal web member. The ends of the vertical web members are welded to an end plate perpendicular to it. A second connecting plate is welded between the end plate and the vertical web member. The second connecting plate is perpendicular to the end plate. The end plate is bolted to the chord member, and the second connecting plate is bolted to the first connecting plate.

[0007] In the aforementioned novel steel structure connection node, the diagonal web member is a hollow tube with a cross-section that is square, rectangular, or circular.

[0008] In the aforementioned novel steel structure connection node, the outer edge of the sealing plate extends outward along the circumference of the diagonal web member.

[0009] In the aforementioned novel steel structure connection node, the sealing plate has a through groove on the bisecting surface along the length of the diagonal web member, and the diagonal web member has a slot communicating with the groove from its end along the bisecting surface along the length of the diagonal web member. The width of the first connecting plate is not less than the length of the groove; the width of the groove and the slot are the same and are adapted to the thickness of the first connecting plate.

[0010] In the aforementioned novel steel structure connection node, the second connection plate is located on the bisecting plane of the length direction of the vertical web member.

[0011] In the aforementioned novel steel structure connection node, the width of the end plate is greater than the width of the vertical web member, and the length of the end plate extends along the length direction of the chord member.

[0012] In the aforementioned novel steel structure connection node, the cross-sections of the vertical web members and chord members are both H-beams or I-beams.

[0013] In the aforementioned novel steel structure connection node, stiffening ribs are provided on the chord below the end plate.

[0014] In the aforementioned novel steel structure connection node, the first connecting plate and the second connecting plate have the same thickness.

[0015] In the aforementioned novel steel structure connection node, the bolts connecting the end plate and the chord are distributed on both sides of the second connecting plate and spaced apart along the length of the end plate.

[0016] In summary, the beneficial technical effects of this utility model are as follows:

[0017] The connection nodes of this utility model adopt bolt connection, which facilitates the installation of large steel trusses. No welding is required on site. The node form is simplified, which facilitates transportation and on-site construction. The installation is simple. The components do not need to be welded with horns. There are no dead corners during hot-dip galvanizing. The rust prevention treatment is of good quality and has a long service life. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of the present invention.

[0019] Figure 2 This is the front view of this utility model;

[0020] Figure 3 This is an exploded structural diagram of the inclined web member, sealing plate, and first connecting plate of this utility model.

[0021] The diagram shows: 1. Diagonal web member; 11. Slot; 2. Vertical web member; 3. Chord member; 4. Sealing plate; 41. Embedded groove; 5. First connecting plate; 6. End plate; 7. Second connecting plate; 8. Stiffening rib. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1-3 The present invention will be described in further detail below.

[0023] like Figure 1 , 2 As shown, a novel steel structure connection node includes a diagonal web member 1, a vertical web member 2, and a chord member 3. A sealing plate 4 perpendicular to the diagonal web member 1 is welded to the end of the diagonal web member 1. A first connecting plate 5 perpendicular to the sealing plate 4 is provided on the outer side of the sealing plate 4. The first connecting plate 5 penetrates the sealing plate 4 and is inserted into the diagonal web member 1. The side of the sealing plate 4 away from the diagonal web member 1 is welded to the first connecting plate 5, and the side of the first connecting plate 5 inserted into the diagonal web member 1 is welded to the web plate of the diagonal web member 1. An end plate 6 perpendicular to the vertical web member 2 is welded to the end of the vertical web member 2. A second connecting plate 7 is welded between the end plate 6 and the vertical web member 2. The second connecting plate 7 is perpendicular to the end plate 6. The end plate 6 is bolted to the chord member 3, and the second connecting plate 7 is bolted to the first connecting plate 5.

[0024] The diagonal web member 1 is a hollow tube, and its cross-section is one of a square, a rectangle, or a circle. In this embodiment, the cross-section of the diagonal web member 1 is a square.

[0025] like Figure 1 As shown, the outer edge of the sealing plate 4 extends outward along the circumference of the diagonal web member 1 to provide space for welding the sealing plate 4 to the web of the diagonal web member 1. In this embodiment, the straight-line distance from the outer edge of the sealing plate 4 to the outer wall of the corresponding web of the diagonal web member 1 is 2 cm.

[0026] like Figure 3 As shown, in order to improve the strength of the connection node, the sealing plate 4 of this embodiment has a through groove 41 on the bisecting surface along the length direction of the diagonal web member 1. The diagonal web member 1 has a slot 11 connected to the groove 41 inward from its end along the bisecting surface along the length direction of the diagonal web member 1. The width of the first connecting plate 5 is not less than the length of the groove 41. The width of the groove 41 and the slot 11 are the same and are adapted to the thickness of the first connecting plate 5.

[0027] The cross-sections of vertical web member 2 and chord member 3 are both either H-beams or I-beams.

[0028] In this embodiment, both the vertical web member 2 and the chord member 3 are made of I-beams.

[0029] The welding process of the diagonal web member 1, the sealing plate 4, and the first connecting plate 5 is as follows: First, the sealing plate 4 is vertically set at the end of the diagonal web member 1. The sealing plate 4 is welded to the outer side of the web of the diagonal web member 1 along the circumferential direction. Then, the groove 41 on the sealing plate 4 and the slot 11 on the diagonal web member 1 are opened on the bisecting surface along the length direction of the diagonal web member 1. Finally, the first connecting plate 5 is inserted into the groove 41 and the slot 11. The sealing plate 4 on the side away from the diagonal web member 1 is welded to the first connecting plate 5 on both sides. The connection between the outer side of the web of the diagonal web member 1 and the first connecting plate 5 is welded.

[0030] In one embodiment, the second connecting plate 7 is located on the bisecting plane of the length direction of the vertical web member 2.

[0031] In one embodiment, the width of the end plate 6 is greater than the width of the vertical web member 2 so as to allow space for welding of the end plate 6 and the vertical web member 2, and the length of the end plate 6 extends along the length direction of the chord member 3.

[0032] To improve the strength of the connection node, in one embodiment, a stiffening rib 8 is provided on the chord 3 below the end plate 6.

[0033] In this embodiment, the first connecting plate 5 and the second connecting plate 7 have the same thickness.

[0034] like Figure 1 As shown, in order to improve the strength of the connection node, the bolts connecting the end plate 6 and the chord 3 are distributed on both sides of the second connecting plate 7 and spaced apart along the length of the end plate 6.

[0035] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A new type of steel structural connection joint comprising diagonal web members, vertical web members and chord members, characterized in that, The end of the diagonal web member is welded to a sealing plate perpendicular to it. A first connecting plate perpendicular to it is provided on the outside of the sealing plate. The first connecting plate passes through the sealing plate and is inserted into the diagonal web member. The side of the sealing plate away from the diagonal web member is welded to the first connecting plate. The side of the first connecting plate inserted into the diagonal web member is welded to the web plate of the diagonal web member. The end of the vertical web member is welded to an end plate perpendicular to it. A second connecting plate is welded between the end plate and the vertical web member. The second connecting plate is perpendicular to the end plate. The end plate is bolted to the chord. The second connecting plate is bolted to the first connecting plate.

2. The new steel structure connection joint according to claim 1, characterized in that, The inclined web member is a hollow tube with a cross-section that is square, rectangular, or circular.

3. The new steel structure connection joint according to claim 2, characterized in that, The outer edge of the sealing plate extends outward along the circumference of the diagonal web member.

4. The new steel structure connection joint according to claim 3, characterized in that, The sealing plate has a through groove along the bisecting surface of the diagonal web member. The diagonal web member has a slot that communicates with the groove from its end along the bisecting surface of the diagonal web member. The width of the first connecting plate is not less than the length of the groove. The width of the groove and the slot are the same and are adapted to the thickness of the first connecting plate.

5. The new steel structural connection joint according to claim 1, wherein The second connecting plate is located on the bisecting plane of the length direction of the vertical web member.

6. The new steel structural connection joint according to claim 1, wherein The width of the end plate is greater than the width of the vertical web member, and the length of the end plate extends along the length direction of the chord member.

7. The new steel structural connection joint according to claim 1, characterized in that, The cross-sections of the vertical web members and chord members are both H-beams or I-beams.

8. The new steel structural connection joint according to claim 1, characterized in that, The chord below the end plate is provided with stiffening ribs.

9. The new steel structural connection joint according to claim 1, characterized in that, The first connecting plate and the second connecting plate have the same thickness.

10. The new steel structural connection joint according to claim 1, characterized in that, The bolts connecting the end plate to the chord are distributed on both sides of the second connecting plate and spaced apart along the length of the end plate.

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