Fixing member

Abstract

To provide a fixing member capable of fixing a tight frame to a beam without performing welding work.MEANS: A fixing member comprises: a support portion configured to support an upper side of a tight frame in a vertical direction; a gripping portion configured to grip a beam to which the tight frame is fixed; and a pulling portion configured to pull the support portion toward the gripping portion.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present disclosure relates to a fixing member for fixing a roofing material-fixing frame to a beam. [Background technology]

[0002] Conventionally, tight frames have been fixed to beams by welding (Patent Document 1). Furthermore, there is a significant shortage of specialized workers at construction sites, which has led to serious problems with work delays and the quality of work. For this reason, there is a demand for technology at construction sites that allows for simple installation work without relying on specialized workers. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-124016 Summary of the Invention [Problem to be solved by the invention]

[0004] However, when considering the fastening of the tight frame, as in Patent Document 1, when welding the tight frame, the worker had to carry the welding equipment to the location where the tight frame was to be attached, i.e., at a high altitude, to perform the work. Furthermore, after welding, additional work such as rust prevention touch-ups had to be performed on the welded area, resulting in a labor-intensive overall work process. Another problem was that welding could not be performed in rainy weather or strong winds. Furthermore, when roofing materials such as corrugated sheets deteriorate over time and the tight frame is replaced when the roofing material is replaced, the welded portion between the tight frame and the beam may be peeled off by thermal melting, potentially reducing the strength of the beam.

[0005] The present invention has been made in consideration of such problems, and its object is to provide a fixing member that enables a tight frame to be fixed to a beam without welding work. [Means for solving the problem]

[0006] A fixing member according to an example of the present invention includes: a support portion for supporting the upper and lower raised sides of the tight frame; A gripping portion that grips a beam to which the tight frame is fixed; and a pulling portion that pulls the support portion toward the grip portion. [Effects of the Invention]

[0007] According to a fixing member according to an example of the present invention, it is possible to fix a tight frame to a beam without performing welding work. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a schematic external view of a building 1. [Figure 2] FIG. 2 is an exploded perspective view of the roof 15 in the range A in FIG. [Figure 3] FIG. [Figure 4] 1 is a flowchart showing the procedure for roof construction. [Figure 5] 1 is a cross-sectional view of a steel beam 23, a tight frame 33, and a fixing member 35. FIG. [Figure 6] 1 is a cross-sectional view of a steel beam 23, a tight frame 33, and a fixing member 35. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0009] An embodiment of the present invention will be described below with reference to the drawings. In the drawings, for convenience of explanation, directions in space are indicated using three axes, XYZ. In particular, the Z direction corresponds to the direction of gravity (vertical direction), the +Z direction indicates an upward direction, and the -Z direction indicates a downward direction. The X direction and the Y direction are both perpendicular to the Z direction, i.e., correspond to the horizontal direction. The X direction and the Y direction are perpendicular to each other. Note that the X direction is not limited to the direction shown in the drawings and can be any direction within a horizontal plane, and the Y direction can also be any direction accordingly.

[0010] Referring to FIG. 1, a schematic external view of a building 1 is shown. The building 1 includes a foundation 3 and a main body 5. The foundation 3 is a supporting structure formed below ground level and made of, for example, concrete. The main body 5 is, for example, a warehouse supported by the foundation 3 and formed on the ground. The main body 5 includes a framework 11, walls 13, and a roof 15. The framework 11 includes a plurality of steel columns 21 extending in the +Z direction from the foundation 3 and a plurality of steel beams 23 (beams) extending in the X and Y directions between the plurality of steel columns 21. The steel columns 21 and the steel beams 23 are, for example, H-shaped steel. Note that the steel columns 21 and the steel beams 23 may also be square columns. The wall 13 is, for example, a deck plate disposed on the side surface on the -Y side of the main body 5. The roof 15 is provided on top of the main body 5 and prevents raindrops and the like from entering the main body 5.

[0011] Referring to Figure 2, there is shown an exploded perspective view of the roof 15 in range A in Figure 1. The roof 15 includes folded plates 31, tight frames 33, and fixing members 35. As will be described in detail later, in the roof 15, the tight frames 33 are fixed to the steel beams 23 by the fixing members 35. The folded plates 31 of the roof 15 are fixed to the tight frames 33.

[0012] The folded plate 31 is a roofing material formed by bending a flat plate to form alternating concave and convex stripes. While the meanings of concave and convex stripes are clear to those skilled in the art, for example, a concave strip refers to the path of a concave-shaped folded line when translated in a direction perpendicular to the plane containing the curve, and a convex strip refers to the path of a convex-shaped folded line when translated in a direction perpendicular to the plane containing the curve. The tight frame 33 is a metal fitting formed to correspond to the concave and convex stripes of the folded plate 31 when viewed in the Y direction. The tight frame 33 extends in the X direction and is disposed on the upper surface 63 of the flange 61 of the steel beam 23, as shown in FIG. 5 (described later). The tight frame 33 also has a bolt 34 extending from its upper end 33a in the +Z direction, as shown in FIG. 5. The bolt 34 penetrates the folded plate 31 through a fastening hole 31a formed in the folded plate 31. That is, the folding plate 31 is fixed to the tight frame 33 by inserting the bolt portion 34 into the fastening hole 31a and screwing the nut 31b onto the bolt portion 34.

[0013] Referring to FIG. 3, a perspective view of the fixing member 35 is shown. The fixing member 35 includes a support portion 41, a gripping portion 43, and a tensioning portion 45. The fixing member 35 is a strip-shaped member formed by integrally integrating the support portion 41, the gripping portion 43, and the tensioning portion 45. An opening 51 is formed in the support portion 41. The opening 51 is a hole with a diameter large enough to insert the bolt portion 34 of the tight frame 33. The gripping portion 43 is a portion capable of gripping the flange 61 of the steel beam 23. The gripping portion 43 includes a vertical portion 53 and a folded portion 55. The vertical portion 53 is a flat portion extending in the Z direction along the Y-direction end of the flange 61. The folded portion 55 is a flat portion extending in the Y direction along the underside 65 of the flange 61.

[0014] The tensioning portions 45 are formed to extend from both Y-direction ends of the support portion 41 toward the Z-side ends of the gripping portions 43 on both Y-direction sides. The tensioning portions 45 are formed, for example, to curve in the Y direction as they progress in the -Z direction. The tensioning portions 45 are flexible and / or elastic, and can be configured to function, for example, as leaf springs. The material of the fixing member 35 (particularly the tensioning portions 45) can be selected arbitrarily by those skilled in the art, and specific examples are described below. The tensioning portions 45 can be made of stainless steel, iron, copper, or the like. Aluminum alloys, titanium, Inconel, or the like may also be used.

[0015] When using a stainless steel material, for example, SUS301-CSP, SUS304-CSP, SUS420J2-CSP, SUS631-CSP, SUS631J1-CSP, NSS431 DP-2, NSSHT1770, etc. can be used.

[0016] When an iron-based material is used, for example, carbon tool steel or hardened ribbon steel (for example, SK85, SK5, NKS80), or bainite steel (for example, S55C-CSPB, S60C-CSPB, SK5-CSPB), etc. can be used.

[0017] When a copper-based material is used, for example, brass, phosphor bronze (for example, C5191P, C5210P, C5210), nickel silver (for example, C7521, C7701), beryllium copper (for example, C1700, C1720), etc. can be used.

[0018] The material of the tensile portion 45 may be alloy tool steel, Fe-based superalloy, Ni-based superalloy, or the like.

[0019] A surface treatment may be applied to the tension portion 45. When the tension portion 45 is made of steel, the surface may be subjected to electrogalvanization, high corrosion resistance plating, painting, hot dip galvanization, Geomet treatment, or the like.

[0020] It should be noted that the above are merely examples, and the material of the puller 45 is not limited to these.

[0021] The material of the parts of the fixing member 35 other than the tensioning portion 45 (for example, the support portion 41 and the gripping portion 43) can be selected arbitrarily by a person skilled in the art, but may be the same material as the tensioning portion 45, may be the material described above for the tensioning portion 45, or may be another material.

[0022] 4, a flowchart showing the steps of roof construction is shown. This flowchart shows an example of a method of using the fixing members 35, and in particular, shows an example of a method of fixing the roof 15 to the steel beams 23 using the fixing members 35 in a method of constructing the building 1.

[0023] Prior to step S1, the steel beam 23 is joined to the steel column 21. In step S1, the tight frame 33 is placed on the steel beam 23 (placement step). In step S2, the fixing members 35 are attached to the tight frame 33 and the steel beam 23 (fixing member attachment step). Details of step S2 will be described later. In step S3, the folded plate 31 is fixed to the tight frame 33 (folded plate attachment step).

[0024] 5 and 6, cross-sectional views of the steel beam 23, the tight frame 33, and the fixing member 35 are shown. These figures relate to step S2. In particular, FIG. 5 shows a state at one point in time when the work of installing the fixing member 35 is in progress, and FIG. 6 shows a state after the fixing member 35 has been installed (i.e., after step S2 has been completed).

[0025] Here, the steel beam 23 has a flange 61 extending in the Y direction (i.e., horizontal direction). That is, the tight frame 33 is placed on an upper surface 63 of the flange 61.

[0026] In the above-mentioned step S2 (fixing member attachment step), the worker first passes the bolt portion 34 through the opening 51. At this time, the worker holds the fixing member 35 so that the folded portion 55 is on the lower side, and inserts the bolt portion 34 of the tight frame 33 into the opening 51. That is, the support portion 41 of the fixing member 35 has an opening 51 formed at a position corresponding to the bolt portion 34, into which the bolt portion 34 is inserted.

[0027] In step S2 (fixing member attachment process), the worker then attaches the gripping portion 43 to the steel beam 23. At this time, the worker causes the gripping portion 43 to grip both edges (both left and right ends of the paper shown in Figures 5 and 6) of the steel beam 23 (particularly the flange 61). Here, since the pulling portion 45 has flexibility and / or elasticity as described above, it can bend or stretch, which allows the worker to easily cause the gripping portion 43 to grip the steel beam 23.

[0028] When the gripping portion 43 is attached to the steel beam 23, the folded portion 55 comes into contact with the lower surface 65 of the flange 61. Furthermore, the vertical portion 53 clamps both edges 67 of the flange 61 facing inward.

[0029] As a result, the fixing member 35 can support the upper and lower sides of the tight frame 33 by passing the bolt portion 34 of the tight frame 33 through the opening 51 of the support portion 41. Also, the gripping portion 43 of the fixing member 35 (particularly, the folded portion 55 of the gripping portion 43 in the example of FIGS. 5 and 6) abuts against the lower surface 65 of the flange 61. This allows the gripping portion 43 of the fixing member 35 to grip the flange 61 of the steel beam 23.

[0030] As shown in Figure 6, when the fixing member 35 is attached, the tensioning portions 45 can be configured to generate tension in the directions of arrows F1 and F2 due to their flexibility and / or elasticity. The support portions 41 of the fixing member 35 support the upper and lower sides of the tight frame 33. The gripping portions 43 grip the steel beam 23 to which the tight frame 33 is fixed. The tensioning portions 45 curve from both edges of the flange 61 toward the tight frame 33, thereby pulling the support portions 41 toward the gripping portions 43 (arrow F2) and pulling the gripping portions 43 toward the support portions 41 (arrow F1).

[0031] In this way, the tight frame 33 is biased and pressed toward the steel beam 23, so that the fixing member 35 can fix the tight frame 33 to the steel beam 23.

[0032] As described above, the fixing member 35 according to one embodiment of the present invention includes support portions 41 that support the upper and lower elevated sides of the tight frame 33, gripping portions 43 that grip the steel beam 23 to which the tight frame 33 is fixed, and tensioning portions 45 that pull the support portions 41 toward the gripping portions 43. This configuration allows the fixing member 35 to more specifically achieve its effect of fixing the tight frame 33. That is, the fixing member 35 supports the upper and lower elevated sides of the tight frame 33 with the support portions 41 while gripping the steel beam 23 with the gripping portions 43, and can pull the support portions 41 toward the gripping portions 43 on both sides in the Y direction due to the flexibility and / or elasticity of the tensioning portions 45. Therefore, the fixing member 35 can properly support the upper and lower elevated sides of the tight frame 33, and therefore the tight frame 33, to the steel beam 23 by pulling the support portions 41 in both the +Y direction and the -Y direction and downward with the tensioning portions 45.

[0033] Furthermore, in the fixing member 35 according to one embodiment of the present invention, the support portion 41 has openings 51 formed at positions corresponding to the bolt portions 34 formed on the upper and lower upper sides of the tight frame 33, into which the bolt portions 34 are inserted. In this way, the fixing member 35 can position the tight frame 33 in the horizontal direction with a simple configuration.

[0034] In addition, in the fixing member 35 according to one embodiment of the present invention, the steel beam 23 has a flange 61 extending horizontally, the tight frame 33 is placed on the upper surface 63 of the flange 61, and the gripping portion 43 abuts against the lower surface 65 of the flange 61. In this way, the fixing member 35 can fix the tight frame 33 to the flange 61 in such a way that it pulls the tight frame 33 downward.

[0035] Furthermore, in the fixing member 35 according to one embodiment of the present invention, the pulling portion 45 has flexibility, which makes the fixing member 35 easier to attach.

[0036] Furthermore, in the fixing member 35 according to one embodiment of the present invention, the tensioning portion 45 is curved toward the tight frame 33. This allows the tensioning force of the fixing member 35 to be used to fix the tight frame. This also allows the tensioning portion 45 to be formed with a simple configuration.

[0037] In addition, in the fixing member 35 according to one embodiment of the present invention, the support portion 41, the grip portion 43, and the pulling portion 45 are an integrally formed band-like member, which makes it easy to manufacture the fixing member 35.

[0038] This concludes the description of the fixing member according to the present invention, but the present invention is not limited to the above embodiment and can be modified within the scope of the invention. For example, in this embodiment, the steel beam 23 is joined to the steel column 21 before step S1, but the steel beam 23 may be joined to the steel column 21 after the tight frame 33 is attached to the steel beam 23 using the fixing member 35. This allows the worker to perform the work of attaching the tight frame 33 (i.e., steps S1 to S2) on the ground.

[0039] The specific configuration of the fixing member 35 can be modified. For example, other positioning structures may be provided instead of the opening 51. The tensioning portion 45 may be configured as a flat plate (even in this case, it can have flexibility and / or elasticity). In this embodiment, the support portion 41, tensioning portion 45, vertical portion 53, and folded portion 55 are clearly separated. However, these components may be configured in a manner that does not clearly separate them. For example, they may be formed as a continuous curved surface. Even in such a case, it is possible to define a support portion that supports the tight frame 33, a gripping portion that grips the steel beam 23, a tensioning portion that pulls the support portion toward the gripping portion, etc., in relation to the fixing member 35, the tight frame 33, and the steel beam 23. In particular, although the tensioning portion 45 is formed to curve in the Y direction as it progresses in the -Z direction in this embodiment, it may also be formed linearly (i.e., not curved). [Explanation of symbols]

[0040] 23 Steel beam (beam) 33 Tight Frame 34 Bolt section 35 Fixing member 41 Support part 43 Gripping part 45 tension section 51 Aperture 61 flange 63 Top surface 65 Bottom side

Claims

1. a support portion for supporting the upper and lower raised sides of the tight frame; A gripping portion that grips a beam to which the tight frame is fixed; a pulling portion that pulls the support portion toward the grip portion. A fixing member characterized by:

2. The support portion has an opening formed at a position corresponding to the bolt portion formed on the upper and lower sides of the tight frame, into which the bolt portion is inserted. The fixing member according to claim 1 .

3. the beam has a horizontally extending flange; The tight frame is placed on an upper surface of the flange, The gripping portion abuts against a lower surface of the flange. The fixing member according to claim 1 .

4. The tensioning portion has flexibility. The fixing member according to claim 1 .

5. The support portion, the grip portion, and the tension portion are integrally formed band-shaped members. The fixing member according to claim 1 .

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