A multi-directional support plate, a vee-truss unit thereof and a combined structure thereof

Abstract

The patent relates to structural members, in particular to a multi-directional support plate and its hollow web truss unit and combined structure. The multi-directional support plate (1) is a metal plate, comprising a plate upper chord (11), a plurality of web members (12) are formed by turning down the plate upper chord (11) body, the web member (12) is a hollow tubular structure, and the central axis (15) of the web member (12) is perpendicular to the plane of the plate upper chord (11). The multi-directional support plate forms the web member by directly turning over the base material, the web member forms a hollow tubular or circular truncated cone structure, the penetration connection of ultra-thin double steel plates or small space can be completed by welding the inner wall lower end of the tubular or circular truncated cone and the opposite side plate, the connection can be directly visually inspected, repaired, detected, and the production is convenient, practical and stable.

Description

TECHNICAL FIELD

[0001] The present patent relates to a multi-directional support plate, a multi-directional support plate truss unit and a combined structure thereof, in particular to a multi-directional support plate and a hollow truss unit and a combined structure thereof. BACKGROUND

[0002] Traditional multi-directional support plates are mostly flat plate structures, which are connected with other components through intermediate connecting pieces, and the welding amount is large; and the existing truss unit spacing is large, because people and equipment need to enter between the trusses to perform welding operations, and when the distance between the trusses is small, people or welding equipment cannot enter between the trusses to perform welding. SUMMARY

[0003] The present patent provides a method for forming a web by directly flipping the base material, which makes it possible to connect ultra-thin double steel plates or small space penetration, especially to form a hollow tubular or circular cone structure, so that the connection of the inner wall of the tubular or circular cone becomes a reality, and the connection can be directly visualized, inspected, repaired, and detected, and the near-end steel plate is used to form a semi-finished product with connecting pieces, which is directly connected with the plane of the far-end steel plate, and there is no need for precise fitting or matching size, so the production is convenient, practical, and stable.

[0004] To solve the above technical problems, the present patent solves the problems by the following technical solutions:

[0005] A multi-directional support plate, the multi-directional support plate is a metal plate, the multi-directional support plate includes a plate upper chord, the plate upper chord has a plurality of webs formed by flipping the plate upper chord body, the web is a hollow tubular structure, and the central axis of the web is perpendicular to the plane of the plate upper chord. The multi-directional support plate is composed of a plane and a plurality of regularly arranged web support feet to support a certain height and bear the load from the outside by the plane.

[0006] The commonly used multi-directional support plate is mostly composed of additional support feet and a plane plate connected by a shear force or by one side of the support feet being compressed and the other side being pulled. The connection between the support feet and the plane plate is a sensitive key node, and the industry mostly adopts a welding connection method. However, the connection or welding position is prone to fatigue, damage, cracking and other diseases, and since the number of support feet is large and located at the lower part of the plane plate, it is not easy to check and more likely to lose the best opportunity for maintenance.

[0007] Therefore, the multi-directional support plate of the patent adopts cold working or hot assisted forming to form a support structure of the panel base material pressing the self-turning web support foot, so that the connection of the panel and the web support foot is directly formed by the base material corner transition, and the fatigue resistance and defect probability of the base material corner are significantly better than the connection or welding of the traditional two parts.

[0008] Since the external load is mainly directly applied to the panel first, that is, the farther away from the panel, the more dispersed the load is, and the damage to the connection point or the support foot is smaller, the patent uses the base material to form the web support foot, cancels the connection point close to the panel in the traditional structure, or leads the connection point away from the panel to a farther position to form a support structure, which is beneficial to avoid the fatigue, damage and cracking of the traditional structure.

[0009] As a preferred, the webs are regularly arranged at intervals, the distance between the horizontally adjacent webs is a, the distance between the vertically adjacent webs is b, and the distance between the obliquely adjacent webs is c; a, b and c are fixed values. The webs are regularly arranged, and the arrangement mode of the adjacent webs is an isosceles triangle or a rectangle. Each web forms three or four axes with the adjacent webs, and the layout of each web on the panel is an isosceles triangle or a rectangle. The layout is to form a regular and stress flow smooth effective support structure for the web support foot, and to form a uniform lattice or radial force transmission path in multiple directions, so as to fully diffuse the load from the panel.

[0010] As a preferred, the diameter of the web close to one end of the plate upper chord is greater than the diameter of the web away from the one end of the plate upper chord; the wall thickness of the web close to the one end of the plate upper chord is greater than the wall thickness of the web away from the one end of the plate upper chord.

[0011] The web is a hollow tubular structure, and the hollow tubular structure has different diameters and wall thicknesses in the range from the outermost side of the metal plate to the farthest end. Since the load comes from the outside and first acts on the surface layer metal plate, and is continuously diffused under the shearing and force transmission of the web support foot, the closer to the outer side of the surface layer metal plate, the earlier the contact with the load, and when the load is a dynamic load, the earlier the impact is borne, and vice versa, the farther away from the outer side of the surface layer metal plate to the farthest end of the web support foot, due to the effect of force transmission and diffusion, the stress working condition tends to be benign.

[0012] Therefore, the patent configures corresponding diameters and wall thicknesses on the pipe body diameter and wall thickness of the web support foot, and generally the closer to the outer side of the panel metal, the greater the diameter and wall thickness, and vice versa, the farther away from the outer side of the panel metal, the smaller the diameter and wall thickness. In this way, the cross-sectional configuration is guaranteed to be matched with the stress working condition, and the total amount of metal migration of the formed part is reduced, and the reasonable matching of product function and manufacturing process is guaranteed.

[0013] Meanwhile, the thickness of the above-mentioned web support foot changes in a way that the closer to the panel, the more complex the stress working condition, and the farther from the panel, the more relaxed the stress working condition. Through the thickness change, the above-mentioned function is economically matched.

[0014] As a preferred embodiment, the web is a hollow circular straight tube, a hollow circular truncated cone, a hollow trumpet or a hollow polygon. The circular truncated cone is formed by rolling or rotating in the process of pressing, and the axial non-uniform thickness connection structure is formed. By adjusting the thickness change, the stiffness of the connection member can be changed to match the shear force or other stress, so that the stress and deformation of each connection member tend to be close. At the same time, the circular truncated cone web has the advantages of high stability, convenient penetration welding, visible welding process and verifiable welding quality.

[0015] As a preferred embodiment, the distance from the end of the web to the panel upper chord is 20-60mm. That is, the height of the web is 20-60mm, so the hollow web truss unit in the present patent is a small cavity double steel plate structure, and the pain point and difficulty is the connection between the small cavity plates.

[0016] As a preferred embodiment, the edge of the metal plate panel upper chord is folded downward to form an upper chord flange. The lower end of the upper chord flange of the outer edge of the metal plate is welded to the lower chord member, and the outer edge of the adjacent metal plate without the upper chord flange is lap welded to the metal plate with the upper chord flange.

[0017] A hollow web truss unit, comprising the above-mentioned multidirectional support plate and the lower chord member, the hollow end face of the lower end of the web is in contact with the lower chord member, and the end of the web is connected to the lower chord member.

[0018] As a preferred embodiment, the inner wall of the web tube is welded to the lower chord member. The inner wall of the end of the web is connected to the lower chord member by welding.

[0019] As a preferred embodiment, the lower chord member is a metal flat plate or a curved plate, and the multidirectional support plate and the lower chord member are made of one of steel, aluminum alloy or titanium alloy.

[0020] A truss unit combined structure, comprising the above-mentioned hollow web truss unit, and a filling body is arranged between the multidirectional support plate and the lower chord member.

[0021] As a preferred embodiment, the filling body is concrete injected by pressure injection, and exhaust and grout holes are arranged at the junction of the web and the panel upper chord. When the concrete is poured under pressure, the exhaust and grout holes arranged at the junction of the web and the panel upper chord ensure the structural strength and stability, and avoid the gap between the concrete and the proximal plate, which affects the overall structural stability.

[0022] Preferably, the venting and grouting holes are residual holes formed by the flange of the parent material, with the flange plate located on the inner side of the web member near the upper chord of the plate. The web member has a flange plate folded towards the central axis, and the flange plate and web member are made of the same material. After folding, the flange plate leaves a corresponding folded hole on the web member. The flange plate can serve as a connecting key during concrete pouring, increasing the connection between the multi-directional support plate and the concrete. The folded hole, i.e., the venting and grouting hole, can be used as a venting and grouting hole during concrete pouring.

[0023] Preferably, inverted studs are welded to the upper chord of the plate. By setting inverted studs, an organic combination of double-linked web members of double steel plates and single-linked studs is formed, resulting in a stronger bond between the concrete and the open-web truss unit in the entire open-web truss unit combination structure.

[0024] This patent provides a method for forming a web member by directly flipping the base material. The web member forms a hollow tubular or frustum-shaped structure. By welding the lower end of the inner wall of the tubular or frustum-shaped structure to the opposite side panel, it is possible to complete the penetration connection of ultra-thin double steel plates or small spaces. Moreover, this connection can be directly visually inspected, repaired, and tested. In terms of assembly, a semi-finished product is first formed by adding a connector to the near end steel plate, which is then directly fitted and connected to the plane of the far end steel plate. There are no precise or matching dimensions, making it convenient and practical to manufacture, and with good stability. Attached Figure Description

[0025] Figure 1 This is a perspective view of Embodiment 1 of this patent.

[0026] Figure 2 for Figure 1 Cross-sectional view.

[0027] Figure 3 for Figure 2 Enlarged view of the middle section (I).

[0028] Figure 4 for Figure 1 Enlarged view from section II.

[0029] Figure 5 This is a schematic diagram of the layout of Embodiment 1 of this patent.

[0030] Figure 6 This is a schematic diagram of the layout of Embodiment 2 of this patent.

[0031] Among them, 1—multi-directional support plate, 2—lower chord component, 3—inverted bolt, 11—plate-type upper chord, 12—web member, 13—flanged plate, 14—venting and grouting hole, 15—central axis, and 16—upper chord flange. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1 To be continued Figure 6 The present patent will be further described in detail with reference to specific embodiments: Example 1

[0033] A multi-directional support plate, such as Figure 1 to the accompanying Figure 5 As shown, the multi-directional support plate 1 is a metal plate, which comprises a plate upper chord 11, and a plurality of web members 12 formed by turning down the body of the plate upper chord 11. The web members 12 are hollow tubular structures, and the central axis 15 of the web members 12 is perpendicular to the plane of the plate upper chord 11. The multi-directional support plate is composed of a plane and a plurality of regularly arranged web members 12 support feet, to support a certain height and to bear the load from the outside by the plane.

[0034] The web members 12 are regularly arranged, and the distance between the horizontally adjacent web members 12 is a, the distance between the vertically adjacent web members 12 is b, and the distance between the diagonally adjacent web members 12 is c. a, b, and c are fixed values.

[0035] The web members 12 are regularly arranged, and the distance between the horizontally adjacent web members 12 is a, the distance between the vertically adjacent web members 12 is b, and the distance between the diagonally adjacent web members 12 is c. a, b, and c are fixed values, that is, the horizontal distance between adjacent web members 12 is constant, the vertical distance between adjacent web members 12 is constant, and the diagonal distance between adjacent web members 12 is constant. The web members 12 are regularly arranged, and the arrangement of adjacent web members 12 is an isosceles triangle or a rectangle. Each web member 12 forms three or four axes with adjacent web members 12, and the layout of each web member 12 on the panel is an isosceles triangle or a rectangle. The purpose of this layout is to form a regular, stress flow unobstructed effective support structure for the web support feet, and to form a uniform lattice or radial force transmission path in multiple directions, thereby fully dispersing the load from the panel.

[0036] The diameter of the web member 12 near one end of the plate upper chord 11 is greater than the diameter of the web member 12 away from one end of the plate upper chord 11, and the wall thickness of the web member 12 near one end of the plate upper chord 11 is greater than the wall thickness of the web member 12 away from the plate upper chord 11. The hollow tubular structure of the web member has different diameters and wall thicknesses within the range from the outermost side of the metal plate to the farthest end. Since the load comes from the outside and first acts on the surface layer metal plate, and is constantly dispersed under the shearing and force transmission of the web support feet, the closer to the outer side of the surface layer metal plate, the earlier the load is contacted, and when the load is dynamic, the impact is also earlier. Conversely, the farther away from the outer side of the surface layer metal plate to the far end of the web support feet, the force working condition tends to be benign due to the effect of force transmission and dispersion.

[0037] The web member 12 is a hollow circular straight tube. It is simple to make and can achieve the purpose of connecting with the lower chord member 2.

[0038] The distance from the end of the web 12 to the plate upper chord 11 is 20-60mm. That is, the height of the web 12 is 20-60mm, so the hollow web truss unit in the patent is a small cavity double steel plate structure, and the pain point and difficulty is the connection between the small cavity plates.

[0039] The edge of the metal plate of the plate upper chord 11 is folded downward to form an upper chord flange 16. The lower end of the upper chord flange 16 of the outer edge of the metal plate is welded to the lower chord member 2, and the outer edge of the adjacent metal plate without the upper chord flange 16 is lap welded on the side of the metal plate with the upper chord flange 16.

[0040] A hollow web truss unit, comprising the above-mentioned multidirectional support plate and lower chord member 2, the hollow end face of the lower end of the web 12 is in contact with the lower chord member 2 at the distal end, and the end of the web 12 is connected to the lower chord member 2. The inner wall of the web 12 tube is welded to the lower chord member 2. The inner wall of the web 12 end is connected to the lower chord member 2 by welding.

[0041] The lower chord member 2 is a metal plate, and the multidirectional support plate 1 and the lower chord member 2 are made of one of steel, aluminum alloy or titanium alloy.

[0042] A truss unit combined structure, comprising the above-mentioned hollow web truss unit, a filling body is provided between the multidirectional support plate 1 and the lower chord member 2. By pouring concrete between the hollow web truss units, it becomes a relatively thin concrete double plate, and the overall compression and shear resistance of the structure is effectively improved.

[0043] The filling body is concrete injected by pressure injection, and the junction of the web 12 and the plate upper chord 11 is provided with a venting and grouting hole 14. When the concrete is poured under pressure, the venting and grouting hole 14 at the junction of the web 12 and the plate upper chord 11 is used to vent excess air, ensuring the structural strength and stability, and avoiding the gap between the concrete and the proximal plate, ensuring the overall structural stability. At the same time, the pressure injection of concrete plays a role of external expansion and support for the multidirectional support plate 1 and the lower chord member 2, so that the multidirectional support plate 1 and the lower chord member 2 form a certain external drum, and the entire combined structure has better compression resistance when the concrete solidifies.

[0044] The venting and grouting hole 14 is a residual hole formed by the flanging of the parent material, and the flanged plate 13 is located on the side of the web 12 close to the plate upper chord 11. The web 12 is provided with a flanged plate 13 folded towards one side of the central axis 15, and the flanged plate 13 and the web 12 are made of the same material. The flanged plate 13 is folded to leave a corresponding flange hole on the web 12. The flanged plate 13 can be used as a connecting key during concrete pouring, increasing the combination of the multidirectional support plate 1 and the concrete, and the flange hole, i.e. the venting and grouting hole 14, can be used as a venting and grouting hole during concrete pouring.

[0045] The plate upper chord 11 is welded with the inverted hanging bolt nail 3. By setting the inverted hanging bolt nail, the double-link web member and the single-link bolt nail are organically combined, and the combination of the concrete and the open-web truss unit in the entire open-web truss unit combined structure is stronger.

[0046] Embodiment 2

[0047] As shown in Figure 1 , 2 , 3, 4, 6, the difference between the present embodiment and embodiment 1 is that the web members 12 are regularly arranged at intervals, the distance between the transversely adjacent web members 12 is a, the distance between the vertically adjacent web members 12 is b, and the distance between the obliquely adjacent web members 12 is c; a=c.

[0048] The lower chord member 2 is a metal curved plate, and the multidirectional support plate 1 is made to be consistent with the curved radian of the lower chord member 2. When the two are welded and connected, a curved open-web truss unit is formed, which can be applied in special cases.

[0049] The web member 12 is a circular truncated cone pipe. In the process of pressing, the circular truncated cone is formed into an axial non-uniform thickness connection structure by rolling or rotating. By adjusting the thickness change, different stiffness of the connecting member can be formed, so as to match the size of the shear force or other stress, so that the stress and deformation of each connecting member tend to be close. At the same time, the circular truncated cone web member has the advantages of strong stability, convenient penetration welding, visible welding process, and verifiable welding quality. The web member 12 is provided with a flange plate 13 turned inward toward the web member 12, and a residual hole formed by the flange of the base material is left on the web member 12.

[0050] In summary, the above only describes the preferred embodiments of the present patent, and any equivalent changes and modifications made within the scope of the present patent application patent shall be covered by the scope of the present patent.

Claims

1. A truss unit composite structure, characterized in that: it comprises a kind of open-web truss unit, and the open-web truss unit comprises a multi-directional support plate (1) and a lower chord member (2); The multi-directional support plate (1) comprises a plate upper chord (11), and a plurality of web members (12) are formed by the plate upper chord (11) body being turned down in the plate upper chord (11);The web member (12) is a hollow tubular structure, and the central axis (15) of the web member (12) is perpendicular to the plane of the plate upper chord (11);The distance from the end of the web member (12) to the plate upper chord (11) is 20-60mm, the hollow end face of the lower end of the web member (12) is in contact with the distal end of the lower chord member (2), and the end of the web member (12) is connected with the lower chord member (2);A filling body is arranged between the multi-directional support plate (1) and the lower chord member (2), the filling body is concrete injected by pressure injection, and a venting and grouting hole (14) is formed at the junction of the web member (12) and the plate upper chord (11). The web members (12) are regularly arranged at intervals, the distance between the transversely adjacent web members (12) is a, the distance between the vertically adjacent web members (12) is b, and the distance between the obliquely adjacent web members (12) is c;a, b and c are fixed values. The diameter of the web member (12) near one end of the plate upper chord (11) is greater than the diameter of the web member (12) away from the other end of the plate upper chord (11);The wall thickness of the web member (12) near one end of the plate upper chord (11) is greater than the wall thickness of the web member (12) away from the other end of the plate upper chord (11). The web member (12) is a hollow circular straight pipe, a circular truncated hollow pipe, a horn-shaped or a polygonal hollow pipe.

2. A truss unit assembly according to claim 1, wherein: The edge of the plate upper chord (11) of the metal plate is turned down to form an upper chord flange (16).

3. A truss unit assembly according to claim 1, wherein: The inner wall of the web member (12) is welded to the lower chord member (2).

4. The truss unit assembly according to claim 1, wherein: The lower chord member (2) is a metal flat plate or a curved plate, and the multi-directional support plate (1) and the lower chord member (2) are one of steel, aluminum alloy or titanium alloy.

5. The truss unit assembly according to claim 1, wherein: The venting and grouting hole (14) is a residual hole formed by flanging the parent material, and the flanged plate (13) is located on the side of the web member (12) close to the plate upper chord (11) on the inside.

6. The truss unit assembly according to claim 1, wherein: The plate upper chord (11) is welded with a hanging bolt (3).

7. The truss unit assembly according to claim 1, wherein: ​ 8. The truss unit assembly according to claim 1, wherein: ​ 9. The truss unit assembly according to claim 1, wherein: ​

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