Joist steel for connection
By designing inclined gaps and bent extensions at the break points of the I-beam vertical plates and connecting them by welding, the problem of weak I-beam connections was solved, and the stability and load-bearing capacity at the connection points were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XUCHANG JUNFU STEEL STRUCTURE ENGINEERING CO LTD
- Filing Date
- 2025-07-04
- Publication Date
- 2026-04-17
AI Technical Summary
In existing technologies, I-beam connections are not secure and are prone to breakage at the joints, affecting their performance.
By designing inclined gaps and bent extensions at the break points of the vertical plates of the I-beams, and then welding them together, a matching structure of the left and right vertical plates is formed, thereby enhancing the connection strength.
This design ensures that the I-beam joints are less prone to breakage, have strong load-bearing capacity, reduce bending deformation fatigue of the cross plates, and improve the stability of the connection.
Smart Images
Figure CN224134059U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of I-beam connection technology, specifically to I-beams for connection. Background Technology
[0002] The connecting I-beams include two I-beams, namely a left I-beam on the left and a right I-beam on the right. Each I-beam includes an upper horizontal plate, a lower horizontal plate, and a middle vertical plate. The upper horizontal plate, lower horizontal plate, and vertical plate of the left I-beam are respectively an upper left horizontal plate, a lower left horizontal plate, and a left vertical plate. The upper horizontal plate, lower horizontal plate, and vertical plate of the right I-beam are respectively an upper right horizontal plate, a lower right horizontal plate, and a right vertical plate. The upper left and upper right horizontal plates are of the same height, the lower left and lower right horizontal plates are of the same height, and the left and right vertical plates are of the same height.
[0003] In the existing technology, the connection of two I-beams involves neatly disconnecting and connecting the ends of the two I-beams. This method has the disadvantages of being unstable and prone to breakage at the connection point, which affects the performance of the connected I-beams. Summary of the Invention
[0004] The purpose of this invention is to address the aforementioned shortcomings by providing an I-beam with a connection that is less prone to breakage and has a strong load-bearing capacity.
[0005] The technical solution of this utility model is implemented as follows: The connected I-beams include two I-beams, namely a left I-beam on the left and a right I-beam on the right. Each I-beam includes an upper horizontal plate, a lower horizontal plate, and a middle vertical plate. The upper horizontal plate, lower horizontal plate, and vertical plate of the left I-beam are respectively an upper left horizontal plate, a lower left horizontal plate, and a left vertical plate. The upper horizontal plate, lower horizontal plate, and vertical plate of the right I-beam are respectively an upper right horizontal plate, a lower right horizontal plate, and a right vertical plate. The upper left and upper right horizontal plates have the same height, the lower left and lower right horizontal plates have the same height, and the left and right vertical plates have the same height.
[0006] The left vertical plate has a left vertical plate break on the right side, and the upper left horizontal plate has a gap extending to the left from the left vertical plate break. This gap is the upper left gap, which is to the left of the left vertical plate break and extends to the left vertical plate. The gap extending on the left vertical plate is the left vertical plate gap. The lower left horizontal plate has a right-direction extension, which is the lower left extension. This lower left extension is to the right of the left vertical plate break and bends upward to form an upper left bend extension.
[0007] The right vertical plate has a right vertical plate break on the left side, and the lower right horizontal plate has a gap extending to the right from the right vertical plate break. This gap is the lower right gap, which is to the right of the right vertical plate break and extends to the right vertical plate. The gap extending on the right vertical plate is the right vertical plate gap. The upper right horizontal plate has a leftward extension, which is the upper right extension. This upper right extension is to the left of the right vertical plate break and bends downward to form a lower right bend extension.
[0008] The left and right vertical plate breaks are connected by welding, the upper left gap and the upper right extension are connected by welding, the left vertical plate gap and the lower right bent extension are connected by welding, the lower left extension and the lower right gap are connected by welding, and the upper left bent extension and the right vertical plate gap are connected by welding.
[0009] Furthermore, the left vertical plate gap is a structure that tilts to the left from below; the right vertical plate gap is a structure that tilts to the right from above; the upper left bend extension is formed by bending the lower left horizontal plate, and the lower right bend extension is formed by bending the upper right horizontal plate.
[0010] The beneficial effects of this utility model are: the I-beams with such connections have the advantages of being less prone to breakage at the joint and having strong load-bearing capacity. Attached Figure Description
[0011] Figure 1 This is a side view of the connecting I-beam structure of this utility model.
[0012] Figure 2 This is a side view diagram of the left-hand I-beam structure.
[0013] Figure 3 This is a schematic diagram of the side structure of the right-hand I-beam.
[0014] Figure 4 yes Figure 1 A cross-sectional view along the A-A direction of one embodiment.
[0015] Figure 5 yes Figure 1 A cross-sectional schematic diagram along the B-O-O-B direction of one embodiment.
[0016] Among them: 1. Left H-beam 2. Right H-beam 3. Upper horizontal plate 3A, upper left horizontal plate 3B, upper right horizontal plate 4. Lower horizontal plate 4A, lower left horizontal plate 4B, lower right horizontal plate 5. Vertical plate 5A, left vertical plate 5B, right vertical plate 51A, left vertical plate break 52A, left vertical plate gap 31A, upper left gap 41A, lower left extension 53A, upper left bent extension 51B, right vertical plate break 41B, lower right gap 52B, right vertical plate gap 31B, upper right extension 53B, lower right bent extension. Detailed Implementation
[0017] The present invention will be further described below with reference to the accompanying drawings.
[0018] As shown in the figure, the connected I-beams include two I-beams: a left I-beam 1 on the left and a right I-beam 2 on the right. Each I-beam includes an upper horizontal plate 3, a lower horizontal plate 4, and a middle vertical plate 5. The upper horizontal plate, lower horizontal plate, and vertical plate of the left I-beam are respectively the upper left horizontal plate 3A, the lower left horizontal plate 4A, and the left vertical plate 5A. The upper horizontal plate, lower horizontal plate, and vertical plate of the right I-beam are respectively the upper right horizontal plate 3B, the lower right horizontal plate 4B, and the right vertical plate 5B. The upper left and upper right horizontal plates have the same height, the lower left and lower right horizontal plates have the same height, and the left and right vertical plates have the same height.
[0019] The left vertical plate has a left vertical plate break portion 51A on the right side. The upper left horizontal plate has a gap extending to the left from the left vertical plate break portion, which is the upper left gap 31A. The upper left gap is on the left side of the left vertical plate break portion and extends to the left vertical plate. The gap extending on the left vertical plate is the left vertical plate gap 52A. The lower left horizontal plate has a right-direction extension portion, which is the lower left extension portion 41A. The lower left extension portion is on the right side of the left vertical plate break portion and bends upward to form an upper left bend extension portion 53A.
[0020] The right vertical plate has a right vertical plate break 51B on the left side, and the lower right horizontal plate has a gap extending to the right from the right vertical plate break, which is the lower right gap 41B. The lower right gap is on the right side of the right vertical plate break and extends to the right vertical plate. The gap extending on the right vertical plate is the right vertical plate gap 52B. The upper right horizontal plate has a left-direction extension, which is the upper right extension 31B. The upper right extension is on the left side of the right vertical plate break and bends downward to form a lower right bend extension 53B.
[0021] The left and right vertical plate breaks are connected by welding, the upper left gap and the upper right extension are connected by welding, the left vertical plate gap and the lower right bent extension are connected by welding, the lower left extension and the lower right gap are connected by welding, and the upper left bent extension and the right vertical plate gap are connected by welding.
[0022] The above-mentioned features of this utility model provide that the connected I-beams are less prone to breakage at the joint and have a strong load-bearing capacity.
[0023] Furthermore, the left vertical plate gap is a structure that tilts to the left from below; the right vertical plate gap is a structure that tilts to the right from above; the upper left bend extension is formed by bending the lower left horizontal plate, and the lower right bend extension is formed by bending the upper right horizontal plate.
[0024] The above-mentioned features of this utility model also have the advantages of reducing fatigue caused by bending deformation of the lower left horizontal plate and reducing fatigue caused by bending deformation of the upper right horizontal plate.
[0025] The upper left bend extension is formed by bending the lower left horizontal plate, and the lower right bend extension is formed by bending the upper right horizontal plate, and both have a large contact area; that is, the upper left bend extension and the lower right bend extension have a wide structure, so that the upper left bend extension 53A has a large contact area at the right vertical plate gap 52B, and the lower right bend extension 53B has a large contact area at the left vertical plate gap 52A.
[0026] The above description is only a specific embodiment of the present utility model, but the structural features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.
Claims
1. A connecting I-beam, comprising two I-beams, a left I-beam and a right I-beam, each I-beam including an upper horizontal plate, a lower horizontal plate, and a middle vertical plate. The upper horizontal plate, lower horizontal plate, and vertical plate of the left I-beam are respectively an upper left horizontal plate, a lower left horizontal plate, and a left vertical plate; the upper horizontal plate, lower horizontal plate, and vertical plate of the right I-beam are respectively an upper right horizontal plate, a lower right horizontal plate, and a right vertical plate. The upper left and upper right horizontal plates are of the same height, the lower left and lower right horizontal plates are of the same height, and the left and right vertical plates are of the same height. Its characteristic is: The left vertical plate has a left vertical plate break on the right side, and the upper left horizontal plate has a gap extending to the left from the left vertical plate break. This gap is the upper left gap, which is to the left of the left vertical plate break and extends to the left vertical plate. The gap extending on the left vertical plate is the left vertical plate gap. The lower left horizontal plate has a right-direction extension, which is the lower left extension. This lower left extension is to the right of the left vertical plate break and bends upward to form an upper left bend extension. The right vertical plate has a right vertical plate break on the left side, and the lower right horizontal plate has a gap extending to the right from the right vertical plate break. This gap is the lower right gap, which is to the right of the right vertical plate break and extends to the right vertical plate. The gap extending on the right vertical plate is the right vertical plate gap. The upper right horizontal plate has a leftward extension, which is the upper right extension. This upper right extension is to the left of the right vertical plate break and bends downward to form a lower right bend extension. The left and right vertical plate breaks are connected by welding, the upper left gap and the upper right extension are connected by welding, the left vertical plate gap and the lower right bent extension are connected by welding, the lower left extension and the lower right gap are connected by welding, and the upper left bent extension and the right vertical plate gap are connected by welding.
2. A connected I-beam according to claim 1 characterised by: Furthermore, the left vertical plate gap is a structure that tilts to the left from below; the right vertical plate gap is a structure that tilts to the right from above; the upper left bend extension is formed by bending the lower left horizontal plate, and the lower right bend extension is formed by bending the upper right horizontal plate.