Triangular transformation-dendritic connection ladder bracket steel column structure and manufacturing method thereof

Abstract

The application provides a triangular tree-shaped connecting ladder-shaped bracket steel column structure and a manufacturing method thereof, and belongs to the technical field of metal supporting members in buildings. The structure comprises a connecting steel column, stiffening ribs and ladder-shaped brackets. The connecting steel column is increased in size from bottom to top, and the cross section is triangular. Three stiffening ribs are arranged on the top of the connecting steel column, and the inclination angle is 120°. One ladder-shaped bracket is arranged on each stiffening rib, and the ladder-shaped brackets are connected in a tree shape on the top of the connecting steel column. The application solves the problems of stress, design and manufacturing of the triangular column and the tree-shaped connecting ladder-shaped bracket structure, and has the advantages of reasonable structure design, beautiful appearance, high practicability and the like.

Description

Technical Field

[0001] This application relates to a triangular-to-tree-shaped connected trapezoidal corbel steel column structure and its manufacturing method, belonging to the technical field of metal support components in buildings. Background Technology

[0002] The application of steel structure buildings in the construction industry is becoming increasingly widespread, especially in large-span buildings such as stadiums, airports, and train stations. Steel structures have the advantages of superior safety performance, beautiful appearance, and strong plasticity.

[0003] With the widespread application of steel structures, the requirements for building design are becoming increasingly stringent. While considering the design and meeting the structural stress requirements, the effective transfer of forces should be achieved by optimizing the joints to ensure the structural safety.

[0004] Corbels are a common component in steel structures. They work in conjunction with H-beams, beams, and columns to achieve the overall shape of a building. However, during use, we have found that the positioning of corbels can be inaccurate due to multiple angles during the construction of other components. This can lead to additional torque and bending moment during the building's stress process, which is detrimental to the building's safety.

[0005] How to ensure the compatibility of the corbel structure with the overall appearance of the building and precise positioning from multiple angles during the stress process, thereby giving the building both aesthetics and safety, is the problem that this application urgently needs to solve. Summary of the Invention

[0006] In view of this, this application provides a triangular to tree-like connected trapezoidal corbel steel column structure, which not only realizes the transformation of the triangular structure to the tree-like connection, but also realizes the bending and torsion fit under stress.

[0007] Specifically, this application is implemented through the following scheme: A triangular-to-tree-shaped connected trapezoidal corbel steel column structure includes connecting steel columns, stiffening ribs, and trapezoidal corbels. The connecting steel columns have increasing dimensions from bottom to top and a triangular cross-section. The stiffening ribs are provided in three parts, distributed at the top of the connecting steel column, and the inclination angle is 120°. Each stiffening rib is fitted with a trapezoidal bracket, which forms a tree-like connection at the top of the connecting steel column.

[0008] The above structure uses a triangular cross-section connecting steel column as the main body, with stiffening ribs set at the top. By controlling the inclination angle of the stiffening ribs, the trapezoidal brackets installed on them are distributed in a tree-branch-like structure, thus solving the problem of bifurcation bending moment of the trapezoidal brackets during the stress process.

[0009] Furthermore, as a preferred option: The connecting steel column is provided with several column end sealing plates, which are horizontally distributed and increase in size along the axial direction of the connecting steel column.

[0010] The trapezoidal brackets are connected by bracket end plates, which are located directly above the column end plate. More preferably, the stiffening ribs are located at the center of the column end plate and inserted into the middle of the trapezoidal brackets, with the three stiffening ribs intersecting at 60° angles at the center of the column end plate. The stiffening ribs have a star-shaped structure.

[0011] The trapezoidal bracket and the connecting steel column are connected by a connecting plate with an arc-shaped structure, achieving a transition between the two on their outer surfaces. More preferably, an exterior sealing plate is also provided on the outside of the connecting plate, which is smaller than the connecting plate to enhance the strength of the connecting plate.

[0012] The trapezoidal corbel includes an upper wing plate, a lower wing plate, and a web plate connecting the upper wing plate and the lower wing plate. Both the upper wing plate and the lower wing plate are trapezoidal plates, and the web plate is a bent-twist plate. The web plate and the lower wing plate are connected by chamfer welding.

[0013] In addition, the applicant also provided a method for constructing the aforementioned triangular-to-tree-shaped connected trapezoidal corbel steel column structure, the steps of which are as follows: Step 1: Connect the three steel plates at their thickest points to form a connecting column with a triangular cross-section that is larger at the top and smaller at the bottom. The top and bottom of the connecting column are both horizontal to the horizontal plane.

[0014] Step 2: Based on the relative relationship and angle of the panels, bevel the relevant plates. The main corners of the triangular column components are sharp, and welding backings are added at the specified positions according to the weld strength requirements.

[0015] Step 3: Based on the end section of the overall component, place the connecting steel column flat on the welding platform, adjust the angle and cross-sectional dimension relationship between the relevant plates, and fix the dimensions and add the jig.

[0016] Step four: According to the assembly and cross-sectional dimension requirements, assemble the relevant plates and stiffening plates, and use CO2 gas shielded welding to weld the stiffening plates and the welds of the connecting steel columns.

[0017] Step 5: Based on the dimensions of the jig and the outline of the component, assemble the end cap plate of the column and adjust the cross-sectional dimensions of the upper and lower ends of the connecting steel column.

[0018] Step 6: Based on the component outline and drawing dimensions, assemble the stiffening rib weld at the center of the top column end cap plate. The three stiffening ribs are welded together with equal strength according to the actual situation.

[0019] Step 7: Based on the component outline and drawing dimensions, assemble the connecting plate at the connection node between the trapezoidal corbel and the connecting steel column.

[0020] Step 8: Based on the component outline and drawing dimensions, assemble the upper and lower flanges and one side web of the trapezoidal corbel. The other side web will be assembled and welded after the stiffening ribs are welded to the inside of the trapezoidal corbel.

[0021] Step 9: Based on the component outline and drawing dimensions, complete the overall assembly and welding of the trapezoidal bracket, and then complete the appearance sealing plates at the top and sides of the trapezoidal bracket.

[0022] The above scheme realizes the trapezoidal corbel steel column structure with triangular to tree-like connection. The assembly and welding sequence is reasonably designed. On the basis of ensuring manufacturing accuracy, the overall structure is mainly composed of triangular connecting columns, tree-like trapezoidal corbels and internal stiffening ribs, which reduces the overall deformation and residual stress of the components. It has the advantages of reasonable structural design, beautiful appearance and strong practicality. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the axonal structure of this application; Figure 2 This is a schematic diagram of the split structure of this application; Figure 3 This is a schematic diagram of the trapezoidal bracket structure in this application; Figure 4 This is a detailed drawing of the welded joint of the main steel column connecting to the main body of this application; Figure 5 A schematic diagram showing the dimensions of a small trapezoidal bracket; Figure 6 A schematic diagram showing the dimensions of a large trapezoidal bracket; Figure 7 Detailed drawing of the welding bevel for the main wing plate and web plate of the trapezoidal corbel.

[0024] Numbered in the diagram: 1. Connecting steel column; 2. Connecting plate; 3. Trapezoidal corbel; 31. First trapezoidal corbel; 32. Second trapezoidal corbel; 33. Third trapezoidal corbel; 3a. Wing plate; 3b. Web plate; 4. Stiffening rib; 41. First stiffening rib; 42. Second stiffening rib; 43. Third stiffening rib; 5. Column end cap; 51. Gasket; 6. Corbel end cap; 7. Exterior cap. Detailed Implementation

[0025] This embodiment describes a triangular-to-tree-like connection structure with trapezoidal corbel steel columns, such as... Figure 1 As shown, it includes a connecting steel column 1, a connecting plate 2, a trapezoidal corbel 3, a stiffening rib 4, a column end cap 5, a corbel end cap 6, and an exterior cap 7.

[0026] Combination Figure 2The connecting steel column 1 is an equilateral triangular columnar structure composed of three plates. Its cross-section extends upwards for 5m from small to large. The interior of the connecting steel column 1 is equipped with 60mm thick column end sealing plates 5 at different heights.

[0027] Combination Figure 4 The lower inner contour of the connecting steel column 1 is an equilateral triangle with a side length of 600mm. The outer contour retains the natural angle of the 60mm main material plate, with an angle of 120°. The distance between the angles of the two main material plates is 104mm. The thickness of the base plate is 60mm. The upper inner contour is an equilateral triangle with a side length of 800mm. The outer contour retains the natural angle of the 60mm main material plate, with an angle of 120°. The distance between the angles of the two main material plates is 104mm. The thickness of the base plate is 60mm.

[0028] The steel column 1 is connected to the upper branch-shaped trapezoidal brackets 3 by a connecting plate 2, which is formed by an irregularly shaped, multi-section arc-shaped cast steel component. The connecting plate 2 is 60mm thick, similar to 1 / 4 of a 400mm diameter, 60mm thick circular pipe.

[0029] The stiffening rib 4 adopts a cross-shaped structure and serves as the internal stiffening rib of the column end cap 5 and the trapezoidal bracket 3, with a plate thickness of 60mm. The three stiffening ribs 4 are located at the center of the column end cap 5 and inserted into the middle of the trapezoidal bracket 3. The three cross-shaped stiffening ribs 4 are at a 60° angle and intersect at the center of the column end cap 5. They can be welded in sections according to the actual situation.

[0030] The main material of trapezoidal bracket 3 is 40mm thick plate, combined with Figure 3 It includes a wing plate 5a and a web plate 5b. The wing plate 5a is a trapezoidal plate, wherein the upper wing plate is as follows: Figure 5 The shape shown is a trapezoid with dimensions of 600*300*800, and the lower flange is as follows: Figure 6 The dimensions shown are trapezoidal, 800*400*800 mm, forming a 120° angle with the horizontal plane; the webs 5b are all bent-torsional plates, and the webs 5b and the lower flanges 5a must be connected by a... Figure 7 The chamfered corners and special welding techniques shown ensure that the connection thickness on this side is 60mm.

[0031] The end cap of the corbel is a 373mm equilateral triangle with a thickness of 40mm.

[0032] The exterior cover plate 7 is located at the side connection of the trapezoidal bracket 3. It is a 40mm bent plate, and is a combination of an equilateral triangle with a side length of approximately 226mm and an isosceles triangle with a side length of 300*300*226. The bending position of the exterior cover plate 7 is at the connection at 226mm, and the bending angle is 120°.

[0033] The manufacturing method of the above structure is as follows: Step 1: The three main plates of the steel column are all trapezoidal 60mm thick steel plates, connected to each other at the apex of the plate thickness to ensure that the upper and lower ends are level with the horizontal plane.

[0034] Step 2: Open the relevant plate bevels. The main corner of the triangular column component is in the form of a sharp corner. The bevels are opened according to the relative relationship and angle of the panels, and welding backing 51 is added at the specified position according to the weld strength requirements.

[0035] Step 3: Based on the end section of the overall component, place the main body of the triangular steel column flat on the welding platform, adjust the angle and cross-sectional dimension relationship between the remaining main body plates, fix the dimensions, and add the jig.

[0036] Step four: According to the assembly and cross-sectional size requirements, assemble the main panel and internal stiffening plate, and use CO2 gas shielded welding to weld the stiffening plate and the main body weld.

[0037] Step 5: Based on the dimensions of the jig and the outline of the components, assemble the end caps 5 at the top and bottom of the triangular steel column, and adjust the cross-sectional dimensions of the top and bottom of the main body of the triangular steel column.

[0038] Step 6: According to the component outline and drawing dimensions, assemble the 60mm stiffening rib 4 weld in the center of the upper end cap plate. The three stiffening ribs (first stiffening rib 41, second stiffening rib 42, and third stiffening rib 43) can be disconnected and welded with equal strength according to the actual situation.

[0039] Step 7: Based on the component outline and drawing dimensions, assemble the arc-shaped connecting plate 2 of the connection node between the trapezoidal corbel 3 and the triangular steel column.

[0040] Step 8: Based on the component outline and drawing dimensions, assemble the upper and lower flanges 5a and one side bent web 5b of the trapezoidal corbel 3. The other side bent web needs to be assembled and welded after the cross-shaped stiffening ribs 4 are welded to the inner side of the trapezoidal corbel 3.

[0041] Step 9: Based on the component outline and drawing dimensions, complete the overall assembly and welding of the trapezoidal bracket, and then complete the appearance sealing plate 7 at the top and side of the trapezoidal bracket.

[0042] The above embodiments and figures are not intended to limit the product form and style of the present invention. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of the present invention.

Claims

1. A triangular-to-tree-shaped connected trapezoidal corbel steel column structure, characterized in that: This includes connecting steel columns, stiffening ribs, and trapezoidal corbels. The connecting steel columns have increasing dimensions from bottom to top and a triangular cross-section. The stiffening ribs have a star-shaped structure, with three ribs distributed at the top of the connecting steel columns, and an inclination angle of 120°. Each stiffening rib is fitted with a trapezoidal bracket, which forms a tree-like connection at the top of the connecting steel column. The trapezoidal brackets are connected by bracket end plates, which are located directly above the column end plates. The stiffening ribs are located at the center of the column end plates and inserted into the middle of the trapezoidal brackets. The three stiffening ribs intersect at 60° angles at the center of the column end plates. The fabrication method for the above-mentioned triangular-to-tree-shaped connected trapezoidal corbel steel column structure is as follows: Step 1: Connect the three steel plates at their thickest points to form a connecting column with a triangular cross-section that is larger at the top and smaller at the bottom, and ensure that the top and bottom of the connecting column are level with the horizontal plane. Step 2: According to the relative relationship and angle of the panels, bevel the relevant plates. The main corners of the triangular column components are sharp, and welding backing is added at the specified positions according to the weld strength requirements. Step 3: Based on the end section of the overall component, place the connecting steel column flat on the welding platform, adjust the angle and cross-sectional dimension relationship between the relevant plates, and fix the dimensions and add the jig; Step 4: Assemble the relevant plates and stiffening plates, and use CO2 gas shielded welding to weld the stiffening plates and the welds of the connecting steel columns; Step 5: Based on the dimensions of the jig and the outline of the component, assemble the end caps of the column and adjust the cross-sectional dimensions of the upper and lower ends of the connecting steel column. Step 6: Assemble the stiffening rib weld at the center of the top column end cap plate, wherein the three stiffening ribs are welded separately with equal strength according to the actual situation; Step 7: Install connecting plates at the connection nodes between the trapezoidal corbel and the connecting steel column; Step 8: Assemble the upper and lower flanges and one side web of the trapezoidal corbel. The other side web will be assembled and welded after the stiffening ribs are welded to the inside of the trapezoidal corbel. Step 9: After completing the overall assembly and welding of the trapezoidal bracket, complete the exterior sealing plates for the top and sides of the trapezoidal bracket.

2. The triangular-to-tree-shaped connected trapezoidal corbel steel column structure according to claim 1, characterized in that: The connecting steel column is provided with several column end sealing plates, which are horizontally distributed and increase in size along the axial direction of the connecting steel column.

3. The triangular-to-tree-shaped connected trapezoidal corbel steel column structure according to claim 1, characterized in that: The trapezoidal bracket is connected to the connecting steel column by a connecting plate, which has an arc-shaped structure.

4. The triangular-to-tree-shaped connected trapezoidal corbel steel column structure according to claim 3, characterized in that: An exterior sealing plate is also provided on the outside of the connecting plate, and the exterior sealing plate is smaller than the connecting plate.

5. The triangular-to-tree-shaped connected trapezoidal corbel steel column structure according to claim 1, characterized in that: The trapezoidal corbel includes an upper wing plate, a lower wing plate, and a web plate connecting the upper wing plate and the lower wing plate. Both the upper wing plate and the lower wing plate are trapezoidal plates, and the web plate is a bent-twist plate. The web plate and the lower wing plate are connected by chamfer welding.

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