H-shaped honeycomb steel beam having corrugated web and manufacturing method therefor

Abstract

The present invention relates to the technical field of structural engineering, and in particular to an H-shaped honeycomb steel beam having a corrugated web and a manufacturing method therefor. The H-shaped honeycomb steel beam having a corrugated web consists of a corrugated web, an upper flange plate, and a lower flange plate, wherein the corrugated web is welded between the upper flange plate and the lower flange plate; a plurality of holes are formed in the corrugated web, and the plurality of holes have the same hole shape and are arranged at equal intervals; and the cross section of the corrugated web is regularly corrugated. The present invention has the advantages that a corrugated web hole forming machining process can achieve manufacturing of a honeycomb steel beam while ensuring that no material is wasted, and is a novel process for efficient and energy-saving machining and manufacturing of the honeycomb steel beam having a corrugated web; and machining is convenient, the material is saved, the stress performance is good, the bearing capacity is high, and good engineering value is achieved.

Description

A corrugated web H-shaped honeycomb steel beam and its manufacturing method Technical Field

[0001] The present invention relates to the technical field of structural engineering, in particular to an H-shaped honeycomb steel beam with a corrugated web and a manufacturing method thereof. Background Art

[0002] In the past, a new type of steel beam with a series of equally spaced holes of the same shape was formed by cutting along the designed path on the web of a rolled or welded H-shaped steel beam and then staggered welding. This new type of steel beam is called an H-shaped honeycomb steel beam. Compared with the original solid-web steel beam, it has higher bending stiffness and bending bearing capacity. At the same time, the holes formed can pass through equipment pipelines, saving building space.

[0003] Traditional H-shaped honeycomb steel beams typically utilize flat webs, which present the following drawbacks that need to be overcome: Flat webs have weak out-of-plane stiffness and low shear buckling resistance, limiting the beam's expansion ratio and, consequently, its structural performance. Furthermore, given the rigidity requirements during manufacturing, transportation, and installation, the flat web's height-to-thickness ratio cannot be too high. To address these drawbacks, it is often necessary to increase the web thickness or weld transverse stiffeners. However, these measures not only increase steel consumption and manufacturing processes but also compromise the aesthetics of the honeycomb beam. Technical issues

[0004] The present invention addresses the shortcomings of the prior art by providing an H-shaped honeycomb steel beam with a corrugated web and a method for manufacturing the beam. By replacing flat webs with corrugated webs, the out-of-plane stiffness issue of flat webs can be effectively addressed without increasing steel usage or manufacturing steps, resulting in a higher shear buckling resistance. Furthermore, corrugated webs have a higher height-to-thickness ratio than flat webs, which helps increase the expansion ratio of the honeycomb steel beam, fully utilizing its structural performance and making it suitable for structures with larger spans.

[0005] The purpose of the present invention is achieved by the following technical solutions:

[0006] A corrugated web H-shaped honeycomb steel beam, characterized in that: the corrugated web H-shaped honeycomb steel beam is composed of a corrugated web and upper and lower flange plates, wherein the corrugated web is welded between the upper and lower flange plates, a plurality of openings are provided on the corrugated web, the hole shapes of the plurality of openings are the same and are arranged at equal intervals, and the cross-section of the corrugated web is regularly corrugated.

[0007] The corrugated web is formed by vertically welding two corrugated webs of the same specification.

[0008] The height-to-thickness ratio of the trapezoidal corrugated web is not greater than ,in is the steel yield strength of the trapezoidal corrugated web.

[0009] The plurality of openings are evenly arranged along the cross section of the corrugated web.

[0010] A method for manufacturing the above-mentioned corrugated web H-shaped honeycomb steel beam is characterized in that the manufacturing method comprises the following steps:

[0011] The flat plate is continuously pressed by a pressing device to form a corrugated web;

[0012] Cutting the corrugated web along a set cutting path to divide the corrugated web into a plurality of cutting units;

[0013] According to the corresponding relationship between the corrugated cross sections and the hole profiles of the cutting units, the corresponding cutting units are welded to form corrugated webs with the same hole profile and arranged at equal intervals;

[0014] The corrugated web is welded between the upper and lower flange plates.

[0015] The cutting paths are mirror images in a plane.

[0016] When a corrugated board is used, the cutting path includes a size cutting path for equally dividing the corrugated board and a forming and dividing path, and the forming and dividing path includes two cutting paths in a mirror image relationship.

[0017] When two corrugated plates are used, forming and dividing paths are respectively provided on the two corrugated plates, and the forming and dividing paths on the two corrugated abdomens are in a mirror image relationship.

[0018] The advantages of the present invention are:

[0019] 1) The corrugated web hole forming process can realize the manufacture of honeycomb steel beams without wasting materials. It is a new process for the manufacture of honeycomb steel beams with high efficiency and energy saving.

[0020] 2) Honeycomb steel beams have higher out-of-plane stiffness and shear buckling resistance without increasing the amount of steel used and the manufacturing process;

[0021] 3) The height-to-thickness ratio limit of honeycomb steel beam web can be relaxed to ,in To increase the yield strength of the web steel, the corrugated web can be made high and thin, which is beneficial to improve the expansion ratio of the honeycomb steel beam, give full play to the structural performance of the honeycomb steel beam, and be suitable for larger span structures;

[0022] 4) The corrugated web of the honeycomb steel beam greatly improves the out-of-plane stiffness of the honeycomb steel beam and the upright stiffness required during transportation, making it easier to transport and install;

[0023] 5) Honeycomb steel beams have a different architectural appearance, providing designers with another choice of architectural appearance style;

[0024] 6) Easy to process, save materials, good mechanical performance, high bearing capacity, and great engineering value.

[0025] BRIEF DESCRIPTION OF THE DRAWINGS

[0026] FIG1 is a schematic structural diagram of an H-shaped honeycomb steel beam with rectangular hole-shaped corrugated webs according to the present invention;

[0027] FIG2 is an elevation view of each cutting unit in FIG1 ;

[0028] FIG3 is an elevation view and a plan view of an H-shaped honeycomb steel beam with rectangular hole-shaped corrugated webs according to the present invention;

[0029] FIG4 is a schematic diagram of a cutting method for an H-shaped honeycomb steel beam with a rectangular hole-shaped corrugated web according to the present invention;

[0030] FIG5 is a schematic diagram of a second cutting method for an H-shaped honeycomb steel beam with a rectangular hole-shaped corrugated web according to the present invention;

[0031] FIG6 is a cutting unit elevation view of an H-shaped honeycomb steel beam with hexagonal corrugated webs according to the present invention;

[0032] FIG7 is an elevation view and a plan view of an H-shaped honeycomb steel beam with hexagonal corrugated webs according to the present invention;

[0033] FIG8 is a schematic diagram of a cutting method for an H-shaped honeycomb steel beam with a hexagonal corrugated web according to the present invention;

[0034] FIG9 is a cutting unit elevation view of another H-shaped honeycomb steel beam with hexagonal corrugated webs according to the present invention;

[0035] FIG10 is an elevation and plan view of another H-shaped honeycomb steel beam with hexagonal corrugated webs according to the present invention;

[0036] FIG11 is a schematic diagram of a cutting method for another H-shaped honeycomb steel beam with hexagonal corrugated webs according to the present invention;

[0037] FIG12 is a schematic elevation and cross-sectional view of an H-shaped honeycomb steel beam with elliptical corrugated webs according to the present invention;

[0038] FIG13 is an elevational view of each cutting unit in FIG12 according to the present invention;

[0039] FIG14 is a schematic diagram of a cutting method for an H-shaped honeycomb steel beam with an elliptical hole corrugated web according to the present invention;

[0040] FIG15 is a schematic diagram of a cutting method for an H-shaped honeycomb steel beam with an elliptical hole corrugated web according to the present invention;

[0041] FIG16 is a schematic diagram of a cutting method for an H-shaped honeycomb steel beam with an elliptical hole corrugated web according to the present invention;

[0042] FIG17 is a schematic diagram of a cutting method for an H-shaped honeycomb steel beam with an elliptical hole corrugated web according to the present invention.

[0043] DETAILED DESCRIPTION

[0044] The features of the present invention and other related features are further described in detail below through embodiments in conjunction with the accompanying drawings to facilitate understanding by those skilled in the art:

[0045] As shown in Figure 1-17, the marks in the figure respectively represent: first cutting unit 1, second cutting unit 2, third cutting unit 3, fourth cutting unit 4, cut-off portion 5, corrugated plate 6, corrugated plate 7, cutting line M, cutting line N, cutting line Q, lower cutting line X1, upper cutting line X2, lower cutting line X3, upper cutting line X4.

[0046] Example 1: As shown in Figures 1 to 3, the corrugated web H-type honeycomb steel beam in this embodiment is a rectangular hole corrugated web H-type honeycomb steel beam, which is composed of a corrugated web and upper and lower flange plates, wherein the corrugated web is welded between the upper and lower flange plates, and a plurality of rectangular openings are provided on the corrugated web, and the hole shapes of the plurality of rectangular openings are the same and are arranged at equal intervals, and the cross section of the corrugated web is a regular corrugation.

[0047] As shown in FIG1 , the processing of the rectangular hole-shaped corrugated web H-shaped honeycomb steel beam includes the following steps:

[0048] 1) Continuously press the flat plate through the press equipment to form a corrugated web;

[0049] 2) Cut the corrugated web along the set cutting path to divide the corrugated web into several cutting units.

[0050] Specifically, as shown in Figure 3, two corrugated webs, whose cross-sections have been molded into trapezoidal corrugations, are cut along the dotted forming cutting paths, namely, cutting lines M and N. These cutting lines M and N are mirror images in a plane and divide the corrugated webs into two equal parts. As shown in Figure 2, the first cutting unit 1, the second cutting unit 2, the third cutting unit 3, and the fourth cutting unit 4 are the four cutting units formed by cutting two corrugated webs. The first cutting unit 1 and the second cutting unit 2 are two parts cut from one corrugated web, and the third cutting unit 3 and the fourth cutting unit 4 are two parts cut from another corrugated web.

[0051] 3) According to the corresponding relationship between the corrugated cross sections and the hole profiles of the cutting units, the corresponding cutting units are welded to form corrugated webs with the same hole profile and arranged at equal intervals.

[0052] As shown in Figures 2 and 3 , in this embodiment, the first cutting unit 1 and the fourth cutting unit 4 are two corresponding cutting units, and the transverse semi-rectangular holes formed by the two units correspond to each other. The second cutting unit 2 and the third cutting unit 3 are two corresponding cutting units, and the transverse semi-rectangular holes formed by the two units correspond to each other. The first cutting unit 1 and the fourth cutting unit 4 are welded, and the second cutting unit 2 and the third cutting unit 3 are welded.

[0053] In this embodiment, as shown in Figure 3, the sub-unit composed of the first cutting unit 1 and the fourth cutting unit 4 has a vertical semi-rectangular hole on the right side of the figure, and the sub-unit composed of the second cutting unit 2 and the third cutting unit 3 has a vertical semi-rectangular hole on the left side of the figure. After the two sub-units are welded horizontally, the two vertical semi-rectangular holes are combined to form a complete rectangular hole and have the same hole shape as the remaining rectangular holes.

[0054] 4) Weld the corrugated web between the upper and lower flange plates.

[0055] Based on this, it can be seen from Figures 1 to 3 that the manufacturing method of this embodiment fully utilizes straight steel plates, eliminating any material waste. Furthermore, compared to the conventional processing method of forming honeycomb corrugated steel webs by molding (or bending) after staggered welding of straight plates, this embodiment has significant advantages, including:

[0056] (1) The back-pressing method limits the wave height range of the honeycomb corrugated steel web due to the geometric constraint relationship between the inclination angle θ of the corrugated plate and the hole clearance and hole specifications, thereby limiting its application range. The manufacturing method in this embodiment avoids this constraint.

[0057] 2) Avoid the possibility of deformation of the hole appearance due to post-molding errors, and effectively ensure manufacturing accuracy.

[0058] 3) Post-pressing involves two highly concentrated superposition processes, namely, the superposition of welding residual stress and the stress peak generated during the molding process. This can easily lead to tearing at the weld, and buckling deformation and high stress concentration problems at the edge of the orifice. The present embodiment proposes a process of first cutting the corrugated web and then assembling the processing technology, which can avoid the superposition of welding stress and the peak stress of the cold pressing of the corrugated web, thereby minimizing processing defects and avoiding damage to the weld interface and weak parts of the orifice during processing.

[0059] 4) Due to welding process requirements, to avoid welding warping, the height-to-thickness ratio of the flat plate made by conventional manufacturing methods should not exceed 250. However, the corrugated web hole forming proposed in this patent is based on the corrugated web cut and assembled, and its height-to-thickness ratio can be relaxed to , where Based on this, the web of the corrugated web H-shaped honeycomb steel beam proposed in this embodiment can be made thinner and lighter, and can give full play to the structural performance of the corrugated web.

[0060] As shown in Figures 4 and 5, the corrugated web in this embodiment also has two cutting methods. Figure 4 shows that two corrugated webs with a height of H and a length of 2L+ψ are obtained by vertically cutting a corrugated plate with a height of H and a length of L. ψ is the cut-off portion 5 of the cutting method 1 in Figure 4, which can be optimized in combination with the specific design; Figure 5 shows that two corrugated plates 6 and 7 with a height of H and a length of L are obtained by horizontally cutting a corrugated plate with a height of 2H and a length of L along a cutting line Q.

[0061] As shown in Figure 1 or Figure 3, the inclination angle θ of the corrugated sheet must meet the process requirements for structural corrugated webs. λ is the wavelength of the corrugated sheet, f is the wave height, s is the width of the rectangular opening, h is the height of the rectangular opening, a is the horizontal projection length of the corrugated web's inclined section, and b is the length of the corrugated web's straight section.

[0062] In this embodiment, the structure of the corrugated web having a series of equally spaced holes of the same shape satisfies the following relationship:

[0063] s>a, s=a+b, m=b / 2, h2=h / 2, H=2h1+h2, λ=2b+2a.

[0064] Using the above relationship, a series of equally spaced corrugated webs with the same rectangular hole pattern can be obtained. However, in actual designs, even without using this relationship, corrugated webs for honeycomb beams can be obtained, for example, with different hole patterns or with holes in different positions. In general, the above relationship is a preferred solution for obtaining a series of equally spaced corrugated webs with the same hole pattern, but it is not the only solution. However, using this relationship can produce more aesthetically pleasing and regular honeycomb beams.

[0065] Example 2: As shown in Figures 6 to 8, this example differs from Example 1 in that the openings in the corrugated web are hexagonal. By calculating and planning the forming and segmentation paths, each segmentation unit forms a half of a hexagon. Welding is then performed using the same method as in Example 1: the first segmentation unit 1 is welded to the second segmentation unit 4, and the second segmentation unit 2 is welded to the third segmentation unit 3.

[0066] Example 3: As shown in Figures 9 to 11, the difference between this example and Example 2 is that the sizes of the hexagonal openings on the corrugated web are different. This difference is also achieved by calculating and planning the forming segmentation path.

[0067] Example 4: As shown in Figures 12 and 13, this example differs from the above examples in that the hole pattern on the corrugated web is elliptical. Based on this, as shown in Figures 14 and 15, in this example, in order to form elliptical openings, the forming cutting path arranged outside the equally divided cutting path includes two paths: the cutting between cutting unit 1 and cutting unit 2 is performed by the lower cutting line X3 and the upper cutting line X4, and the cutting between cutting unit 3 and cutting unit 4 is performed by the lower cutting line X1 and the upper cutting line X2. That is, a plate needs to be cut twice, wherein the lower cutting line X1 and the upper cutting line X4 are mirror images in the plane, and the upper cutting line X2 and the lower cutting line X3 are mirror images in the plane. The shaded portion shown in the figure is the cut-off portion; through the cooperation of the two forming cutting paths, a semi-elliptical hole is formed on each segmentation unit, and then the corresponding segmentation units are welded in pairs, thereby forming a corrugated web with a series of equally spaced elliptical holes.

[0068] As shown in Figures 16 and 17, the corrugated web in this embodiment also has two cutting methods. Figure 16 shows that two corrugated webs with a height of H and a length of 2L+ψ are obtained by vertically cutting a corrugated plate with a height of H and a length of L, where ψ is the cut-off portion 5 of the cutting method 1 in Figure 16, which can be optimized in combination with the specific design; Figure 17 shows that two corrugated plates 6 and 7 with a height of H and a length of L are obtained by horizontally cutting a corrugated plate with a height of 2H and a length of L along a cutting line Q.

[0069] As shown in Figure 12 or Figure 13, the inclination angle θ of the corrugated plate's inclined section must meet the process requirements for structural corrugated webs. λ is the wavelength of the corrugated plate, f is the wave height, s is the major axis of the elliptical hole, h is the minor axis of the elliptical hole, a is the horizontal projection length of the corrugated web's inclined section, b is the length of the corrugated web's straight section, and d is the hole clearance.

[0070] In this embodiment, the structure of the corrugated web having a series of equally spaced holes of the same shape satisfies the following relationship:

[0071] d>a, s=d+2k, d=a+2g, s=2h2, H=h1+h2+h3, λ=2b+2a.

[0072] Using the above relationship, a series of equally spaced corrugated webs with the same elliptical hole pattern can be obtained. However, in actual designs, even without using this relationship, corrugated webs for honeycomb beams can be obtained, such as those with different hole patterns or with holes in different positions. In general, the above relationship is a preferred solution for obtaining a series of equally spaced corrugated webs with the same hole pattern, but it is not the only solution. However, using this relationship can produce more aesthetically pleasing and regular honeycomb beams.

[0073] In the specific implementation of the above embodiments: In addition to the rectangular, hexagonal, and elliptical shapes embodied in the above embodiments, during the actual design and manufacturing process of the corrugated web H-shaped honeycomb steel beam, the openings may also be designed into other shapes, such as arcs, diamonds, circles, etc. Similarly, in addition to the regular trapezoidal corrugations of the cross-section of the corrugated web, arcuate corrugations may also be used.

[0074] Although the above embodiments have described in detail the concepts and embodiments of the present invention with reference to the accompanying drawings, ordinary technicians in this field can recognize that various improvements and modifications can still be made to the present invention without departing from the scope of the claims, so they are not described in detail here.

Claims

1. A corrugated web H-shaped honeycomb steel beam, characterized in that: The corrugated web H-shaped honeycomb steel beam is composed of a corrugated web and upper and lower flange plates, wherein the corrugated web is welded between the upper and lower flange plates, a plurality of openings are provided on the corrugated web, the hole shapes of the plurality of openings are the same and are arranged at equal intervals, and the cross section of the corrugated web is regularly corrugated.

2. The H-shaped honeycomb steel beam with corrugated web according to claim 1, characterized in that: The corrugated web is formed by vertically correspondingly welding two corrugated webs of the same specification.

3. The H-shaped honeycomb steel beam with corrugated web according to claim 1, characterized in that: The height-to-thickness ratio of the trapezoidal corrugated web is not greater than ,in is the steel yield strength of the trapezoidal corrugated web.

4. The H-shaped honeycomb steel beam with corrugated web according to claim 1, characterized in that: The plurality of openings are evenly arranged along the cross section of the corrugated web.

5. A method for manufacturing a corrugated web H-shaped honeycomb steel beam according to any one of claims 1 to 4, characterized in that: The manufacturing method comprises the following steps: The flat plate is continuously pressed by a pressing device to form a corrugated plate; Cutting the corrugated plate along a set cutting path so that the corrugated plate is divided into a plurality of cutting units; According to the corresponding relationship between the corrugated cross sections and the hole types of the cutting units, the corresponding cutting units are welded to form corrugated webs with the same hole type and arranged at equal intervals; The corrugated web is welded between the upper and lower flange plates.

6. The method for manufacturing a corrugated web H-shaped honeycomb steel beam according to claim 5, characterized in that: The cutting paths are mirrored in the plane.

7. The method for manufacturing a corrugated web H-shaped honeycomb steel beam according to claim 6, characterized in that: When a corrugated board is used, the cutting path includes a size cutting path for equally dividing the corrugated board and a forming and dividing path, and the forming and dividing path includes two cutting paths in a mirror image relationship.

8. The method for manufacturing a corrugated web H-shaped honeycomb steel beam according to claim 6, characterized in that: When two corrugated plates are used, forming and dividing paths are respectively arranged on the two corrugated plates, and the forming and dividing paths on the two corrugated abdomens are in a mirror image relationship.

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