CORRUGATED STEEL SHEET HAVING INCLINED PORTION IN WHICH POSITION OF COUPLING HOLE IS ADJUSTED AND JOINT CORRUGATED STEEL SHEET STRUCTURE USING SAME

Abstract

The present invention relates to a corrugated steel sheet, and provides a corrugated steel sheet (B) having an inclined portion in which the position of a coupling hole is adjusted, wherein: among a pair of corrugated steel sheets (A, B), a corrugated steel sheet (B) is overlapped and joined with the upper portion of a lower corrugated steel sheet (A) and has the same thickness as the lower corrugated steel sheet (A); a common bolt is coupled to both a coupling hole in the lower corrugated steel sheet (A) and a coupling hole in the corrugated steel sheet (B); and when assuming that the distance between the center of a middle crest portion coupling hole (111) and the center of an adjacent inclined portion coupling hole (141) is a coupling hole distance (a, b), the coupling hole distance (b) for the corrugated steel sheet (B) is calculated by equation 1. Therefore, the present invention can obtain a stable bolt coupling strength, can minimize the occurrence of a gap in a joint corrugated steel sheet structure in which the corrugated steel sheets are overlapped and joined together, thereby improving the waterproof performance thereof, and can facilitate bolt coupling work, thereby improving constructability on the site.

Claims

1. A corrugated steel sheet (B) having an inclined portion in which a position of a coupling hole is adjusted, which is one of a pair of upper and lower corrugated steel sheets (B, A), each of the upper and lower corrugated steel sheets (B, A) including: a W-shaped body (100) having one central ridge portion (110), two coupling ridge portions (120), two valley portions (130), and four inclined portions (140); and coupling holes (111, 121, 131, and 141) respectively formed in central sections of the one central ridge portion (110), the two coupling ridge portions (120), the two valley portions (130), and the four inclined portions (140), wherein the corrugated steel sheet (B) is superimposed on and coupled to the lower corrugated steel sheet (A) to form a corrugated steel sheet structure, wherein the thickness of the corrugated steel sheet (B) is the same as a thickness of the lower corrugated steel sheet (A), bolts are commonly coupled to the coupling holes of the lower corrugated steel sheet (A) and the coupling holes of the corrugated steel sheet (B), and when assuming that distances between centers of the coupling holes (111) of the central ridge portions and centers of the coupling holes (141) of the inclined portions are coupling hole distances (a, b), the coupling hole distance (b) of the corrugated steel sheet (B) is calculated in Equation 1:
b=a+kd0.2[Equation 1] in which a: the coupling hole distance (mm) of the lower corrugated steel sheet (A), b: the coupling hole distance (mm) of the corrugated sheet sheet (B), k: 1.3 to 1.6, and d: the thickness of the corrugated steel sheet (mm).

2. The corrugated steel sheet (B) of claim 1, wherein a depth (D) of the body (100) is 237 mm, a pitch (P) of the body (100) is 1000 mm, and a radius (R) of curvature of the ridge portions (110, 120) and the valley portions (130) is 80 mm.

3. The corrugated steel sheet (B) of claim 2, wherein a long diameter of the coupling holes is 32 mm, and a short diameter of the coupling holes is 26 mm.

4. The corrugated steel sheet (B) of claim 3, wherein the thickness (d) of the corrugated steel sheet is 3 to 12 mm.

5. The corrugated steel sheet (B) of claim 4, wherein when the thickness (d) of the corrugated steel sheet is 3 mm, the coupling hole distance (a) of the lower corrugated steel sheet (A) is 181.5 mm and the coupling hole distance (b) of the corrugated steel sheet (B) is 185.8 mm, when the thickness (d) of the corrugated steel sheet is 4 mm, the coupling hole distance (a) of the lower corrugated steel sheet (A) is 182.2 mm and the coupling hole distance (b) of the corrugated steel sheet (B) is 187.9 mm, when the thickness (d) of the corrugated steel sheet is 5 mm, the coupling hole distance (a) of the lower corrugated steel sheet (A) is 182.6 mm and the coupling hole distance (b) of the corrugated steel sheet (B) is 189.9 mm, when the thickness (d) of the corrugated steel sheet is 6 mm, the coupling hole distance (a) of the lower corrugated steel sheet (A) is 183.3 mm and the coupling hole distance (b) of the corrugated steel sheet (B) is 192.0 mm, when the thickness (d) of the corrugated steel sheet is 7.01 mm, the coupling hole distance (a) of the lower corrugated steel sheet (A) is 183.9 mm and the coupling hole distance (b) of the corrugated steel sheet (B) is 194.2 mm, when the thickness (d) of the corrugated steel sheet is 8 mm, the coupling hole distance (a) of the lower corrugated steel sheet (A) is 184.5 mm and the coupling hole distance (b) of the corrugated steel sheet (B) is 196.3 mm, when the thickness (d) of the corrugated steel sheet is 9 mm, the coupling hole distance (a) of the lower corrugated steel sheet (A) is 184.9 mm and the coupling hole distance (b) of the corrugated steel sheet (B) is 198.2 mm, when the thickness (d) of the corrugated steel sheet is 10 mm, the coupling hole distance (a) of the lower corrugated steel sheet (A) is 185.6 mm and the coupling hole distance (b) of the corrugated steel sheet (B) is 200.5 mm, when the thickness (d) of the corrugated steel sheet is 11 mm, the coupling hole distance (a) of the lower corrugated steel sheet (A) is 186.2 mm and the coupling hole distance (b) of the corrugated steel sheet (B) is 202.6 mm, and when the thickness (d) of the corrugated steel sheet is 12 mm, the coupling hole distance (a) of the lower corrugated steel sheet (A) is 186.8 mm and the coupling hole distance (b) of the corrugated steel sheet (B) is 204.8 mm.

6. A corrugated steel sheet structure comprising: the corrugated steel sheet (B) claimed in any one of claims 1 to 5; the lower corrugated steel sheet (A) superimposed on and coupled to a lower portion of the corrugated steel sheet (B); and bolts of a diameter of 22 mm commonly coupled to the coupling holes of the lower corrugated steel sheet (A) and the coupling holes of the corrugated sheet sheet (B).

Description

DESCRIPTION OF THE DRAWINGS

[0027] FIGS. 1 to 7 are cross-sectional views of a conventional corrugated steel sheet.

[0028] FIG. 8 is a cross-sectional view of a coupling hole.

[0029] FIGS. 9 to 15 are cross-sectional views of a coupling structure of the conventional corrugated steel sheet.

[0030] FIGS. 16 to 32 illustrates an embodiment of the present invention, in which:

[0031] FIGS. 16 to 22 are cross-sectional views of a corrugated steel sheet;

[0032] and

[0033] FIGS. 23 to 32 are cross-sectional views of a coupling structure of the corrugated steel sheet.

DESCRIPTION OF REFERENCE NUMERALS

[0034] 100: body [0035] 110: Central ridge portion [0036] 111: central hole [0037] 120: coupling ridge portion [0038] 121: coupling hole [0039] 130: valley portion [0040] 131: coupling hole [0041] 140: inclined portion [0042] 141: coupling hole [0043] A: lower corrugate steel sheet [0044] a: coupling hole distance of lower corrugated steel sheet [0045] B: corrugated steel sheet [0046] b: coupling hole distance of corrugated steel sheet [0047] d: thickness of corrugated steel sheet

BEST MODE

[0048] Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0049] As illustrated in the drawings starting from FIG. 1, the present invention relates to a corrugated steel sheet B having an inclined portion in which a position of a coupling hole is adjusted, which is one of a pair of upper and lower corrugated steel sheets B and A, each of the upper and lower corrugated steel sheets B and A including: a W-shaped body 100 having one central ridge portion 110, two coupling ridge portions 120, two valley portions 130, and four inclined portions 140; and coupling holes 111, 121, 131, and 141 formed in central sections of the one central ridge portion 110, the two coupling ridge portions 120, the two valley portions 130, and the four inclined portions 140.

[0050] Among the pair of corrugated steel sheets A and B, the corrugated steel sheet B is superimposed on and coupled to the lower corrugated steel sheet A, the thickness of the corrugated steel sheet B is the same as the thickness of the lower corrugated steel sheet A, and bolts are commonly coupled to the coupling holes of the lower corrugated steel sheet A and the coupling holes of the corrugated steel sheet B.

[0051] Here, when assuming that distances between the centers of the coupling holes 111 of the central ridge portions and the centers of the coupling holes 141 of the inclined portions are coupling hole distances a and b, the coupling hole distance b of the corrugated steel sheet B is calculated in Equation 1.

b=a+kd0.2[Equation 1] [0052] a: the coupling hole distance (mm) of the lower corrugated steel sheet (A), [0053] b: the coupling hole distance (mm) of the corrugated sheet sheet (B), [0054] k: 1.3 to 1.6 [0055] d: the thickness of the corrugated steel sheet

[0056] That is, there is a problem of not being able to form a wide through-hole (a through-hole formed through alignment of the coupling holes of the two corrugated steel sheets) at a section in which the coupling hole 141 of the inclined portion of the lower corrugated steel sheet A and the coupling hole 141 of the inclined portion of the corrugated steel sheet B meet each other due to the influences of the thicknesses of the two corrugated steel sheets and the radii of curvature of the ridge portions and the valley portions, and the problem is solved by changing the locations of the coupling hole 141 of the corrugated steel sheet B.

[0057] According to Equation 1, because the position of the coupling hole 141 of the inclined portion of the lower corrugated steel sheet A is determined while taking the distance increased from the coupling hole distance a of the lower corrugated steel sheet A by a product of the thickness d of the corrugated steel sheet and the constant k, as the coupling hole distance b of the corrugated steel sheet B, the widths of the coupling holes formed as the coupling holes 141 of the inclined portions of the two corrugated steel sheets A and B meet each other can be sufficiently ensured, making it possible to couple the bolts 20 (having a diameter of 22 mm) stably.

[0058] Because Equation 1 is obtained with the premise of a corrugated steel sheet of the international standards, a stable effect can be expected according to the international standards.

[0059] That is, it is preferable that this is applied to the corrugated steel sheet in which the depth D of the body 100 is 237 mm, the pitch P of the body 100 is 1000 mm, and the radius R of curvature of the ridge portions 110 and 120 and the valley portions 130 is 80 mm.

[0060] Further, it is preferable that the present invention is applied to the corrugated steel sheet which has coupling holes of a slot structure having a long diameter of 32 mm and a short diameter of 26 mm.

[0061] It is suitable to use bolts having a diameter of 22 mm in the coupling holes (4 mm is a marginal part for a coupling operation).

[0062] Hereinafter, in order to identify the effects of the present invention, an embodiment to which the present invention is applied for a corrugated steel sheet having a thickness d of 3 to 12 mm will be described.

[0063] It could be identified that when the thickness d of the corrugated steel sheet is 3 mm, the coupling hole distance a of the lower corrugated steel sheet A is 181.5 mm, the coupling hole distance b of the corrugated steel sheet B is 185.8 mm, and stable through-holes for bolting are formed as the coupling holes 141 of the inclined portions of the two corrugated steel sheets meet each other (FIGS. 1, 16, and 23).

[0064] It could be identified that when the thickness d of the corrugated steel sheet is 4 mm, the coupling hole distance a of the lower corrugated steel sheet A is 182.2 mm, the coupling hole distance b of the corrugated steel sheet B is 187.9 mm, and stable through-holes for bolting are formed as the coupling holes 141 of the inclined portions of the two corrugated steel sheets meet each other (FIGS. 2, 17, and 24).

[0065] It could be identified that when the thickness d of the corrugated steel sheet is 5 mm, the coupling hole distance a of the lower corrugated steel sheet A is 182.6 mm, the coupling hole distance b of the corrugated steel sheet B is 189.9 mm, and stable through-holes for bolting are formed as the coupling holes 141 of the inclined portions of the two corrugated steel sheets meet each other (FIGS. 3, 18, and 25).

[0066] It could be identified that when the thickness d of the corrugated steel sheet is 6 mm, the coupling hole distance a of the lower corrugated steel sheet A is 183.3 mm, the coupling hole distance b of the corrugated steel sheet B is 192.0 mm, and stable through-holes for bolting are formed as the coupling holes 141 of the inclined portions of the two corrugated steel sheets meet each other (FIGS. 4, 19, and 26).

[0067] It could be identified that when the thickness d of the corrugated steel sheet is 7.01 mm, the coupling hole distance a of the lower corrugated steel sheet A is 183.9 mm, the coupling hole distance b of the corrugated steel sheet B is 194.2 mm, and stable through-holes for bolting are formed as the coupling holes 141 of the inclined portions of the two corrugated steel sheets meet each other (FIGS. 5, 20, and 27).

[0068] It could be identified that when the thickness d of the corrugated steel sheet is 8 mm, the coupling hole distance a of the lower corrugated steel sheet A is 184.5 mm, the coupling hole distance b of the corrugated steel sheet B is 196.3 mm, and stable through-holes for bolting are formed as the coupling holes 141 of the inclined portions of the two corrugated steel sheets meet each other (FIGS. 6, 21, and 28).

[0069] It could be identified that when the thickness d of the corrugated steel sheet is 9 mm, the coupling hole distance a of the lower corrugated steel sheet A is 184.9 mm, the coupling hole distance b of the corrugated steel sheet B is 198.2 mm, and stable through-holes for bolting are formed as the coupling holes 141 of the inclined portions of the two corrugated steel sheets meet each other (FIGS. 7, 22, and 29).

[0070] It could be identified that when the thickness d of the corrugated steel sheet is 10 mm, the coupling hole distance a of the lower corrugated steel sheet A is 185.6 mm, the coupling hole distance b of the corrugated steel sheet B is 200.5 mm, and stable through-holes for bolting are formed as the coupling holes 141 of the inclined portions of the two corrugated steel sheets meet each other (FIG. 30).

[0071] It could be identified that when the thickness d of the corrugated steel sheet is 11 mm, the coupling hole distance a of the lower corrugated steel sheet A is 186.2 mm, the coupling hole distance b of the corrugated steel sheet B is 202.6 mm, and stable through-holes for bolting are formed as the coupling holes 141 of the inclined portions of the two corrugated steel sheets meet each other (FIG. 31).

[0072] It could be identified that when the thickness d of the corrugated steel sheet is 12 mm, the coupling hole distance a of the lower corrugated steel sheet A is 186.8 mm, the coupling hole distance b of the corrugated steel sheet B is 204.8 mm, and stable through-holes for bolting are formed as the coupling holes 141 of the inclined portions of the two corrugated steel sheets meet each other (FIG. 32).

[0073] Since the above description is merely a description of some of the preferred embodiments which may be realized by the present invention, the scope of the present invention should not be construed to be limited to the above embodiment as known and the technical spirit of the present invention, which has been described above, and the technical spirit having the common basic concept as that of the present invention will fall within the scope of the present invention.