Beam reinforcing member, and beam reinforcing structure having the same

Abstract

To provide a beam reinforcing member that can ensure structural strength while reducing loss of a plate material during manufacturing of a beam reinforcing member, and to provide a beam reinforcing structure having the same.SOLUTION: A beam reinforcing member 20 that reinforces a hole 13 of a beam 10 includes a crescent-shaped first reinforcing member 30 that is joined to a periphery of the hole at an upper part based on a horizontal line passing through the center of the hole, and a crescent-shaped second reinforcing member 40 that is joined to a periphery of the hole at a lower part based on the horizontal line. The first reinforcing member and the second reinforcing member are spaced apart from each other.EFFECT: By producing a crescent-shaped beam reinforcing member by cutting, it is possible to ensure structural strength of the beam while reducing material loss.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a beam reinforcing member for reinforcing holes in a beam and a beam reinforcing structure having the same. [Background technology]

[0002] In general, in buildings, due to restrictions such as floor height, it is often necessary to form openings in the webs of steel beams to pass equipment pipes through them.

[0003] This reduces the strength of the steel beam, and to compensate for this, separate reinforcement materials must be installed. Methods for reinforcing steel beams can be broadly divided into methods using plate materials and methods using special ring-shaped products.

[0004] From the viewpoint of structural mechanics, reinforcing the circular opening with a ring shape along its edge is more efficient in increasing the lost shear strength and bending strength at the same time. It is also more rational from the viewpoint of design and is advantageous for easy design. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 5786060 (registered July 31, 2015) Summary of the Invention [Problem to be solved by the invention]

[0006] One aspect of the present disclosure provides a beam reinforcing member that can ensure structural strength while reducing loss of plate material during production of the beam reinforcing member, and a beam reinforcing structure having the same. [Means for solving the problem]

[0007] According to an embodiment of the present disclosure, in a beam reinforcing member for reinforcing a hole in a beam, The hole includes a first reinforcing member and a second reinforcing member that face each other with respect to a center of the hole, A beam reinforcement member can be provided in which the first reinforcement member and the second reinforcement member each include an arc-shaped outer periphery and an arc-shaped inner periphery, but the radial spacing between the outer periphery and the inner periphery varies at least partially along the circumferential direction of the beam reinforcement member.

[0008] The first reinforcing member and the second reinforcing member each include an outer periphery, an inner periphery, and a side portion connecting an end of the outer periphery and an end of the inner periphery.

[0009] The radii of the outer and inner circumferences may be the same.

[0010] The central point of the inner periphery may be located on a vertical line passing through the center of the hole.

[0011] A central point of the inner periphery may be in contact with the hole.

[0012] The height from the side of the first reinforcing member to the uppermost end of the outer periphery of the first reinforcing member may be smaller than the radius of the first reinforcing member, and the height from the side of the second reinforcing member to the lowermost end of the outer periphery of the second reinforcing member may be smaller than the radius of the second reinforcing member.

[0013] The horizontal spacing between the inner periphery and the holes may be greatest at an end of the inner periphery.

[0014] The first reinforcing member and the second reinforcing member may be symmetrical with respect to the horizontal line.

[0015] The first reinforcing member and the second reinforcing member may be symmetrical with respect to a vertical line passing through a center of the hole.

[0016] The first reinforcing member and the second reinforcing member may have a relatively higher yield strength than the beam.

[0017] The radial distance between the outer periphery and the inner periphery may increase as one moves away from the center of the hole.

[0018] At least a portion of the outer periphery, the sides and the inner periphery may be welded to the web.

[0019] The inner periphery may be welded to only a portion adjacent to the side portion.

[0020] In another aspect, according to one embodiment of the present disclosure, a beam reinforcement structure may be provided that includes a beam reinforcement member including a hole formed through a web of a beam and a first reinforcement member and a second reinforcement member coupled to a periphery of the hole to reinforce the beam and spaced apart above and below based on a horizontal line passing through a center of the hole, wherein the first reinforcement member and the second reinforcement member each include an arc-shaped outer periphery and an arc-shaped inner periphery, but the radial spacing between the outer periphery and the inner periphery varies along the circumferential direction of the beam reinforcement member.

[0021] The outer periphery and the inner periphery of the beam reinforcing member have the same diameter, and the beam reinforcing member further includes a linear side portion connecting ends of the outer periphery and the inner periphery.

[0022] A central point of the inner periphery of the beam reinforcement member may be positioned to abut the hole.

[0023] The beam reinforcing member may be symmetrical with respect to a vertical line passing through the center of the hole.

[0024] The beam reinforcing member may be joined to the beam only at the outer periphery, the side, and a portion of the inner periphery adjacent to the side.

[0025] The holes may be positioned eccentrically relative to the center of the height of the web.

[0026] The hole may include a plurality of holes.

[0027] The beam reinforcing member may be disposed outside an inscribed circle tangent to the plurality of holes.

[0028] The plurality of holes may include a first circular hole and a second circular hole spaced apart from each other, and a central point of an inner periphery of the first reinforcing member may contact the first circular hole, and a central point of an inner periphery of the second reinforcing member may contact the second circular hole.

[0029] A beam reinforcement structure in which the thickness Tr of the beam reinforcement member is twice the thickness Tw of the web, and the ratio calculated by mathematical formula 1 satisfies 1.3 to 1.7.

[0030] [Mathematical formula 1] Ratio=2R / D Here, D is the diameter of the hole, and R is the distance from the center of the hole to the outer periphery of the beam reinforcement member. Effect of the Invention

[0031] According to an embodiment of the present disclosure, the crescent shaped beam reinforcement members can be fabricated by cutting, thereby reducing material loss while still ensuring the structural strength of the beam. [Brief description of the drawings]

[0032] [Figure 1] FIG. 1 is a perspective view of a beam reinforcement structure according to one embodiment of the present disclosure. [Diagram 2] 1 is a diagram illustrating a beam reinforcing member installed in a circular hole of a beam according to an embodiment of the present disclosure. [Diagram 3] FIG. 13 is a cross-sectional view of a beam reinforcement member installed in a circular hole in a beam according to one embodiment of the present disclosure. [Figure 4] 1 is a diagram illustrating a relationship between a circular hole and a beam reinforcing member according to an embodiment of the present disclosure. [Diagram 5] 1 is a diagram illustrating a beam reinforcing member manufactured by a cutting process according to an embodiment of the present disclosure. [Figure 6]1 is a diagram illustrating a schematic view of an application range of a beam reinforcing member according to an embodiment of the present disclosure. [Figure 7] 1 is a graph illustrating an analysis of the structural performance of a beam according to one embodiment of the present disclosure. [Figure 8] 1 is a diagram illustrating a beam reinforcing structure in which a beam reinforcing member according to an embodiment of the present disclosure is installed. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0033] The embodiments described in this specification are merely the most preferred embodiments of the present invention and do not represent the entire technical idea of ​​the present invention. It should be understood that various equivalents or modifications that can replace these at the time of filing this application are also included in the scope of the present invention.

[0034] Additionally, the same reference numbers or characters presented in the various figures of this disclosure indicate parts or components that perform substantially the same functions.

[0035] In addition, the terms used in this disclosure are used to describe the embodiments and are not intended to limit and / or restrict the disclosure. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this disclosure, terms such as "include" or "have" are intended to specify the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the disclosure, and do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0036] In addition, terms including ordinal numbers such as "first," "second," etc., used in this disclosure may be used to describe various components, but the components are not limited by the terms, and the terms are used only to distinguish one component from another component. For example, a first component may be named a second component, and similarly, the second component may be named a first component, without departing from the scope of the present disclosure. The term "and / or" includes a combination of multiple associated listed items or any of multiple associated listed items.

[0037] In addition, in this disclosure, the meaning of "identical" includes that attributes are similar to each other or are similar within a certain range. Also, identical means "substantially the same." The meaning of "substantially the same" should be understood to include numerical values ​​within the manufacturing error range or numerical values ​​that correspond to a difference within a range that has no meaning with respect to a reference numerical value as being included in the range of "being the same."

[0038] Furthermore, the terms "unit", "device", "block", "component", "module", etc. may refer to a unit that processes at least one function or operation. For example, the terms may refer to at least one hardware such as an FPGA (field-programmable gate array) / ASIC (application specific integrated circuit), at least one software stored in a memory, or at least one process that is processed by a processor.

[0039] The singular expression includes the plural expression unless the context clearly dictates otherwise.

[0040] Meanwhile, the terms "front," "rear," "left side," "right side," "upper," and "lower" used in the following description are defined based on the drawings, and these terms do not limit the shape and position of each component.

[0041] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0042] FIG. 1 is a perspective view of a beam reinforcement structure according to an embodiment of the present disclosure. FIG. 2 is a diagram illustrating a beam reinforcement member installed in a circular hole of a beam according to an embodiment of the present disclosure. FIG. 3 is a cross-sectional view of a beam reinforcement member installed in a circular hole of a beam according to an embodiment of the present disclosure. FIG. 4 is a diagram illustrating a relationship between a circular hole and a beam reinforcement member according to an embodiment of the present disclosure. FIG. 5 is a diagram illustrating a beam reinforcement member manufactured by a cutting process according to an embodiment of the present disclosure.

[0043] 1 to 5, a beam reinforcing member 20 according to an embodiment of the present disclosure is a member for reinforcing a hole 13 formed through a web 11 of a beam 10.

[0044] The beam 10 may include an H-shaped steel having flanges 12 at the top and bottom of a web 11. A hole 13 for passing a pipe or the like may be formed in the web 11 of the beam 10. The hole 13 formed in the web 11 may be formed in various shapes depending on the arrangement structure of the pipe or the like. For example, the hole 13 may include an elliptical shape, a circular shape, a polygonal shape, etc. In the following, a case where the hole 13 is a circular hole will be described, but the present invention is not limited thereto.

[0045] Beam reinforcement members 20 may be joined to the web 11 around the circular hole 13 .

[0046] The beam reinforcement member 20 may have a relatively higher yield strength than the beam 10 .

[0047] The beam reinforcing member 20 may be manufactured through a cutting process that cuts a steel plate. The cutting process may include gas cutting or laser cutting. Through this, the beam reinforcing member 20 may be easily manufactured without special equipment, and the degree of reinforcement may be flexibly adjusted according to the size of the circular hole 13. In addition, the beam reinforcing member 20 may be manufactured at a lower cost than casting or forging.

[0048] As shown in Fig. 5(a), the beam reinforcing member 20 can be manufactured in a crescent shape by cutting the steel plate 15 by a cutting process. Such a shape can significantly reduce the amount of steel plate wasted by cutting when manufacturing the beam reinforcing member 20. For example, as shown in Fig. 5(b), if a steel plate 15 having the same size is used to manufacture a segmented ring-shaped member 16, the amount of wasted steel plate can significantly increase.

[0049] The beam reinforcement member 20 includes a first reinforcement member 30 and a second reinforcement member 40 .

[0050] The first reinforcing member 30 and the second reinforcing member 40 may face each other with the center of the circular hole 13 as a reference. For example, the first reinforcing member 30 may be located on one side with the imaginary line HL passing through the center of the circular hole 13 as a reference, and the second reinforcing member 40 may be located on the other side with the imaginary line HL passing through the center of the circular hole 13 as a reference. Here, the imaginary line HL is illustrated as the horizontal extension direction of the beam 10, i.e., a horizontal line passing through the center of the circular hole 13, but is not limited thereto. In addition, the beam reinforcing member 20 may include three or more reinforcing members facing each other with the center of the circular hole 13 as a reference. Hereinafter, a case where the beam reinforcing member 20 is two reinforcing members facing each other with the horizontal line HL passing through the center of the circular hole 13 as a reference will be described.

[0051] The first reinforcing member 30 may be located at an upper portion based on a horizontal line HL passing through the center of the circular hole 13, and the second reinforcing member 40 may be located at a lower portion based on the horizontal line HL passing through the center of the circular hole 13.

[0052] The first reinforcing member 30 and the second reinforcing member 40 may be vertically symmetrical with respect to a horizontal line HL passing through the center of the circular hole 13 .

[0053] The first reinforcing member 30 and the second reinforcing member 40 may be spaced apart from each other by a predetermined distance with respect to the horizontal line HL.

[0054] The distance d between the first reinforcing member 30 and the second reinforcing member 40 may be set to be relatively larger than the thickness Tr of the beam reinforcing member 20 .

[0055] For example, the separation distance between the first reinforcing member 30 and the second reinforcing member 40 may be set to be 1.5 times or more the thickness Tr of the beam reinforcing member 20. This can ensure a space for the welded portion when joining the beam reinforcing member 20 to the web 11, improving workability.

[0056] The thickness Tr of the beam reinforcement member 20 may be relatively thicker than the thickness Tw of the web 11. By way of example, the thickness Tr of the beam reinforcement member 20 may be more than twice the thickness Tw of the web 11.

[0057] The first reinforcing member 30 and the second reinforcing member 40 may be symmetrical with respect to a vertical line VL passing through the center of the circular hole 13 .

[0058] The first reinforcing member 30 and the second reinforcing member 40 may be configured to have the same shape. The first reinforcing member 30 and the second reinforcing member 40 may include outer peripheries 31, 41, inner peripheries 32, 42, and side portions 33, 43, respectively.

[0059] The outer periphery 31, 41 and the inner periphery 32, 42 may be formed in an arc shape. As shown in FIG. 4, the outer periphery 31, 41 and the inner periphery 32, 42 may have the same radius R.

[0060] The sides 33 and 43 may be formed in a straight line shape connecting the ends of the outer periphery 31 and 41 and the ends of the inner periphery 32 and 42. The sides 33 and 43 may be parallel to a horizontal line HL passing through the center of the circular hole 13.

[0061] When the beam reinforcing member 20 is joined to the web 11 of the beam 10, the central points 32a, 42a of the inner peripheries 32, 42 may be located on a vertical line VL passing through the center of the circular hole 13.

[0062] When the beam reinforcing member 20 is joined to the web 11 of the beam 10, the central points 32a, 42a of the inner peripheries 32, 42 may contact the circular hole 13. As an example, the inner periphery 32 of the first reinforcing member 30 may contact the upper end of the circular hole 13, and the inner periphery 42 of the second reinforcing member 40 may contact the lower end of the circular hole 13.

[0063] The height H of the upper and second reinforcing members 30, 40 may be less than the radius R of the upper and second reinforcing members 30, 40. The height H of the first reinforcing member 30 may be defined as the distance from the side 33 of the first reinforcing member 30 to the top end of the periphery 31 of the first reinforcing member 30, and the height H of the second reinforcing member 40 may be defined as the distance from the side 43 of the second reinforcing member 40 to the bottom end of the periphery 41 of the second reinforcing member 40.

[0064] The first reinforcing member 30 and the second reinforcing member 40 may have radial spacing hr between the outer periphery 31, 41 and the inner periphery 32, 42, respectively, that varies along the circumferential direction of the beam reinforcing member 20.

[0065] The radial distance hr between the outer circumferential portion 31 and the inner circumferential portion 32 of the first reinforcing member 30 may decrease from the top end of the first reinforcing member 30 toward the side portion 33. The radial distance hr between the outer circumferential portion 31 and the inner circumferential portion 32 of the first reinforcing member 30 may be maximum on the vertical line VL.

[0066] The second reinforcing member 40 may have a radial distance hr between the outer circumferential portion 41 and the inner circumferential portion 42 that decreases from the bottom end of the second reinforcing member 40 toward the side portion 43. The second reinforcing member 40 may have a maximum radial distance hr between the outer circumferential portion 41 and the inner circumferential portion 42 on the vertical line VL.

[0067] The distance hr between the first reinforcing member 30 and the second reinforcing member 40 may increase as the distance increases from the horizontal line HL.

[0068] The horizontal distance S between the inner periphery 32 of the first reinforcing member 30 and the circular hole 13 may be maximum at an end of the inner periphery 32 of the first reinforcing member 30. Here, the end of the inner periphery 32 may be defined as a corner where the side portion 33 and the inner periphery 32 of the first reinforcing member 30 meet.

[0069] The horizontal distance S between the inner periphery 42 of the second reinforcing member 40 and the circular hole 13 may be maximum at an end of the inner periphery 42 of the second reinforcing member 40. Here, the end of the inner periphery 42 may be defined as a corner where the side portion 43 and the inner periphery 42 of the second reinforcing member 40 meet.

[0070] The beam reinforcing members 20 may be joined to the webs 11 of the beams 10 by welding.

[0071] The beam reinforcing member 20 may be welded circumferentially around the first reinforcing member 30 and the second reinforcing member 40. The beam reinforcing member 20 may be joined to the web 11 by a fillet weld.

[0072] As shown in FIG. 2, the welded portion 50 of the beam reinforcing member 20 joined to the web 11 may be composed of only the outer periphery 31, 41, the side 33, 43, and a part of the inner periphery 32, 42 adjacent to the side 33, 43. For example, the first reinforcing member 30 may be finished by welding the outer periphery 31 and the side 33 along the circumference and then welding a part of the inner periphery 32 adjacent to the side 33, and the second reinforcing member 40 may be finished by welding the outer periphery 41 and the side 43 along the circumference and then welding a part of the inner periphery 42 adjacent to the side 43. Here, the welded part of the inner periphery 32, 42 may be at least twice the length of the side 33, 43. The beam reinforcing member 20 of the present disclosure can ensure the structural performance of the beam 10 reinforced by the beam reinforcing member 20 even if only a part of the inner periphery 32, 42 is welded, and can improve workability by minimizing the welded part of the beam reinforcing member 20. In addition, the beam reinforcing member 20 divided into the first reinforcing member 30 and the second reinforcing member 40 can be easily lifted when being installed on the beam 10 for reinforcement, thereby improving workability.

[0073] FIG. 6 is a schematic diagram illustrating the application range of a beam reinforcing member according to one embodiment of the present disclosure.

[0074] 6, the area range (shaded area) that the beam reinforcing member 20 occupies on the web 11 can be adjusted according to the target reinforcing performance of the beam reinforcing member 20.

[0075] As an example, when the thickness Tr of the beam reinforcing member 20 is twice the thickness Tw of the web 11, if 2R / D=1.7 as shown in Fig. 6(a), the reinforcing effect of the beam without the circular hole can be achieved. Also, if 2R / D=1.5 as shown in Fig. 6(b), the reinforcing effect of the intermediate level can be achieved, and if 2R / D=1.3 as shown in Fig. 6(c), the reinforcing effect of the minimum level can be achieved. That is, if the thickness Tr of the beam reinforcing member 20 is twice the thickness Tw of the web 11, the ratio of the diameter 2R of the beam reinforcing member to the diameter D of the circular hole can satisfy 1.3 to 1.7, where D is the diameter of the circular hole and R is the distance from the center of the circular hole to the outer periphery of the beam reinforcing member.

[0076] FIG. 7 is a graph illustrating an analysis of the structural performance of a beam according to one embodiment of the present disclosure.

[0077] Referring to FIG. 7, (a) is the experimental result when measuring the shear force against the applied torque of a beam that does not have a circular hole formed through the web, (b) is the experimental result when measuring the shear force against the applied torque of a beam that does not have reinforcement in the circular hole formed through the web, (c) is the experimental result when measuring the shear force against the applied torque of a beam in which a complete ring-shaped reinforcing member is installed in the circular hole formed through the web, (d) is the experimental result when measuring the shear force against the applied torque of a beam in which an upper and lower segmented ring-shaped reinforcing member is installed in the circular hole formed through the web, and (e) is the experimental result when measuring the shear force against the applied torque of a beam in which a crescent-shaped reinforcing member of the present disclosure is installed in the circular hole formed through the web.

[0078] As shown in Figure 7, the beam with crescent-shaped reinforcing members (e) has slightly inferior structural performance to the complete ring-shaped reinforcing member (c) and the vertically segmented ring-shaped reinforcing member (d) shown in Figure 5(b), but since the amount of material used for reinforcement is less due to the crescent shape compared to the complete ring-shaped reinforcing member and the vertically segmented ring-shaped reinforcing member, the performance relative to the amount of reinforcement is outstanding. This makes it possible to reduce the amount of material required for beam reinforcement while still ensuring the structural strength required at the time of design.

[0079] FIG. 8 illustrates a beam reinforcing structure in which a beam reinforcing member according to one embodiment of the present disclosure is installed.

[0080] Referring to FIG. 8(a), the circular hole 13 formed through the beam 10 may be positioned at an eccentric position relative to the center of the height direction of the web 11, and the beam reinforcing member 20 may be installed so as to reinforce the circular hole 13 positioned at the eccentric position.

[0081] 8(b), the circular holes formed through the beam 10 may include a first circular hole 13a and a second circular hole 13b having different diameters. In this case, the beam reinforcing member 20 may be installed in sizes corresponding to the first and second circular holes 13a and 13b having different diameters.

[0082] 8(c), the circular holes formed through the beam 10 may include an upper circular hole 13c and a lower circular hole 13d arranged vertically, and the beam reinforcing member 20 may be installed outside the inscribed circle 60, which is in contact with the upper circular hole 13c and the lower circular hole 13d, and is regarded as a circular hole. In this case, the center point 32a of the inner circumference of the first reinforcing member 30 may be in contact with the upper circular hole 13c, and the center point 42a of the inner circumference of the second reinforcing member 40 may be in contact with the lower circular hole 13d.

[0083] Although the technical idea of ​​the present invention has been described above by way of specific examples, the scope of the present invention is not limited to these examples. Various embodiments that can be modified or changed by a person skilled in the art without departing from the spirit of the technical idea of ​​the present invention as defined in the claims are also included in the scope of the present invention. [Explanation of symbols]

[0084] 10: Beam 11: Web, 13: Circular Hall 20: Beam reinforcing member, 30: First reinforcing member 40: Second reinforcing member

Claims

1. A beam reinforcing member for reinforcing a hole in a beam, a first reinforcing member and a second reinforcing member facing each other with respect to a center of the hole; A beam reinforcement member, wherein the first reinforcement member and the second reinforcement member each include an arc-shaped outer periphery and an arc-shaped inner periphery, but the radial spacing between the outer periphery and the inner periphery varies at least partially along the circumferential direction of the beam reinforcement member.

2. The beam reinforcement member of claim 1 , wherein the first reinforcement member and the second reinforcement member each include a side portion connecting an end of the outer periphery and an end of the inner periphery.

3. The beam reinforcement member of claim 2 , wherein the outer periphery and the inner periphery have the same radius.

4. The beam reinforcement member of claim 2 , wherein the center point of the inner periphery is located on a vertical line passing through the center of the hole.

5. The beam reinforcement member of claim 2 , wherein a center point of the inner periphery is in contact with the hole.

6. a height from the side portion of the first reinforcing member to an uppermost end of the outer periphery of the first reinforcing member is smaller than a radius of the first reinforcing member; The beam reinforcement member of claim 2 , wherein a height from the side of the second reinforcement member to a bottom end of the outer periphery of the second reinforcement member is less than a radius of the second reinforcement member.

7. The beam reinforcement member of claim 2 , wherein the horizontal spacing between said inner periphery and said holes is greatest at an end of said inner periphery.

8. The beam reinforcement member according to claim 1 , wherein the first reinforcement member and the second reinforcement member are symmetrical with respect to an imaginary line passing through the center of the hole.

9. The beam reinforcement member of claim 1 , wherein the first reinforcement member and the second reinforcement member are symmetrical with respect to a vertical line passing through the center of the hole.

10. The beam reinforcement member of claim 1 , wherein the first reinforcement member and the second reinforcement member have a relatively higher yield strength than the beam.

11. The beam reinforcing member of claim 1 , wherein the radial distance between the outer periphery and the inner periphery increases with increasing distance from the center of the hole.

12. The beam reinforcing member of claim 2 , wherein at least a portion of said outer periphery, said side portion and said inner periphery are welded to said beam.

13. The beam reinforcing member according to claim 12, wherein only a portion of the inner periphery adjacent to the side portion is welded and joined.

14. A beam reinforcement structure, comprising: a hole formed through the web of the beam; a beam reinforcing member including a first reinforcing member and a second reinforcing member coupled to a periphery of the hole to reinforce the beam and spaced apart from each other above and below the horizontal line passing through the center of the hole; Including, A beam reinforcement structure, wherein the first reinforcement member and the second reinforcement member each include an arcuate outer periphery and an arcuate inner periphery, but the radial spacing between the outer periphery and the inner periphery varies along the circumference of the beam reinforcement member.

15. The beam reinforcement structure according to claim 14 , wherein the outer periphery and the inner periphery of the beam reinforcement member have the same diameter, and further include a straight side portion connecting ends of the outer periphery and the inner periphery.

16. The beam reinforcement structure of claim 14 , wherein a center point of the inner periphery of the beam reinforcement member is positioned to be tangent to the hole.

17. The beam reinforcement structure of claim 14, wherein the beam reinforcement member is symmetrical about a vertical line passing through the center of the hole.

18. The beam reinforcement structure according to claim 15 , wherein only a portion of the outer periphery, the side, and the inner periphery adjacent to the side of the beam reinforcement member is joined to the beam.

19. 15. The beam reinforcement structure of claim 14, wherein the holes are eccentrically positioned relative to the center of the height of the web.

20. The beam reinforcement structure of claim 14 , wherein the holes include a plurality of holes.

21. The beam reinforcement structure according to claim 20, wherein the beam reinforcement member is disposed outside an inscribed circle tangent to the plurality of holes.

22. the plurality of holes includes a first circular hole and a second circular hole spaced apart from each other, 21. The beam reinforcement structure of claim 20, wherein a center point of an inner periphery of the first reinforcement member abuts the first circular hole, and a center point of an inner periphery of the second reinforcement member abuts the second circular hole.

23. The beam reinforcement structure of claim 14, wherein the thickness (Tr) of the beam reinforcement member is twice the thickness (Tw) of the web, and the ratio calculated by mathematical formula 1 satisfies 1.3 to 1.

7. [Mathematical formula 1] Ratio = 2R / D Here, D is the diameter of the hole, and R is the distance from the center of the hole to the outer periphery of the beam reinforcement member.

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