JP6873430B2 - Folded plate structure and mounting method - Google Patents

Description

The present invention relates to a folded plate structure including a corrugated steel plate having continuous concave portions and convex portions, and a mounting method for attaching a plate-shaped member to the corrugated steel plate.

Various types of folded plate structures have been conventionally known. Japanese Patent Application Laid-Open No. 2004-285810 describes a folded plate roof. The folded plate roof includes a folded plate having concave portions and convex portions, and a flat-roofed base reinforcing material and a flat-roofed iron plate that are hung over a plurality of convex portions of the folded plate. The folded plate is provided with a protrusion such as a ventilation port or a top light.

Further, in the above-mentioned publication, a water collecting sheet cylinder, a connecting cylinder and a drainage port arranged in a concave portion of a folded plate are hung on a plurality of convex portions above the water collecting sheet cylinder, the connecting cylinder and the drainage port. A box cover and a water drainage device equipped with a water cover are described. In this water upper rain closing device, the folded plate has a slope, and rainwater or the like flowing through the recess of the folded plate flows out from the drain port through the water collecting sheet cylinder and the connecting cylinder to discharge the rainwater or the like.

Japanese Unexamined Patent Publication No. 2004-285810

In the above-mentioned folded plate roof, a flat-roofed iron plate that is hung over a plurality of convex portions formed on the folded plate is provided, and in the water-top rain storage device, the flat-roofed iron plate is hung over the plurality of convex portions. A box cover is provided. Both the flat-roofed iron plate and the box cover are flat plate members extending in the horizontal direction. Therefore, when the flat plate member is stepped on by a worker or the like, or when a heavy object is placed on the flat plate member, there is a concern that the flat plate member may be recessed at a position facing the concave portion of the folded plate. When the flat plate member is dented, there may be a problem that rainwater or the like collects in the dented portion.

An object of the present invention is to provide a folded plate structure and a mounting method capable of making it difficult for water to collect and making it difficult to dent.

The folded plate structure according to the present invention is a folded plate structure including a corrugated steel plate having continuous concave portions and convex portions and a plate-shaped member that bridges at least three convex portions, and is a support provided on the convex portions. The plate-shaped member is supported by the support portion in a state where the lower surface of the plate-shaped member faces the upper surface of the support portion, and the support portion is located on both ends in a continuous direction in which the concave portion and the convex portion are continuous. A first support portion to be formed and a second support portion located between a plurality of first support portions in a continuous direction are included, and the height of the upper surface of the second support portion is the height of the upper surface of the first support portion. Higher than height. The height of the upper surface of the second support portion with respect to the recess may be higher than the height of the upper surface of the first support portion with respect to the recess.

In this folded plate structure, a plate-shaped member that bridges at least three convex portions is supported by a first support portion and a second support portion above the convex portions. The lower surface of the plate-shaped member includes an upper surface of a first support portion located on both ends of the concave and convex portions in the continuous direction and an upper surface of a second support portion located between the plurality of first support portions in the continuous direction. The height of the upper surface of the second support portion is higher than the height of the upper surface of the first support portion. Therefore, the lower surface of the plate-shaped member is curved upward from the first support portion on both end sides toward the second support portion on the center side. Therefore, since the lower surface of the plate-shaped member is curved upward toward the center side, the out-of-plane rigidity of the plate-shaped member can be increased, so that the plate-shaped member is dented when the plate-shaped member is stepped on. Can be suppressed. Therefore, since it is possible to prevent the formation of a dented portion, it is possible to prevent water from accumulating on the plate-shaped member.

Further, the plate-shaped member may be supported by the first support portion and the second support portion in a state of being bent by elastic deformation. In this case, the plate-shaped member is supported by the first support portion and the second support portion in a state of being bent by elastic deformation. Therefore, by bending a flat plate member having a uniform thickness by elastic deformation, it is possible to form a plate-shaped member that curves upward toward the center side. Therefore, even if a flat plate member is used as the plate-shaped member, the same effect as described above can be obtained, so that the flat plate member having a simple structure can be used and the cost of the plate-shaped member can be suppressed.

Further, the second support portion is a separate member with respect to the corrugated steel plate, and the second support portion has a protrusion in which the lower surface of the plate-shaped member faces and protrudes upward, and an obliquely downward portion from the lower end of the protrusion. It may have a pair of inclined extending portions that extend to the corrugated steel sheet and come into contact with the corrugated steel sheet. By configuring the second support portion to include a protrusion and a pair of inclined extending portions in this way, the configuration of the second support portion can be simplified. Therefore, by attaching the second support portion having a simple structure to the corrugated steel plate, a structure for supporting the plate-shaped member can be easily provided, and the cost for the second support portion can be suppressed.

The mounting method according to the present invention is a mounting method in which a plate-shaped member is hung on at least three convex portions of a corrugated steel sheet having continuous concave portions and convex portions, and the plate-shaped member is mounted on a support portion provided on the convex portion. The support portion includes a first support portion located on both ends in a continuous direction in which the concave portion and the convex portion are continuous, and a second support portion located between a plurality of first support portions in the continuous direction. The height of the upper surface of the two support portions is higher than the height of the upper surface of the first support portion, and the lower surface of the plate-shaped member faces the upper surface of the first support portion and the upper surface of the second support portion to support the first support. A step of attaching a plate-shaped member to the portion and the second support portion is provided. The height of the upper surface of the second support portion with respect to the recess may be higher than the height of the upper surface of the first support portion with respect to the recess.

In this mounting method, a plate-shaped member is hung on at least three convex portions, and the plate-shaped member is mounted on the first support portion and the second support portion above the convex portion. At this time, the lower surface of the plate-shaped member is the second support portion located between the upper surface of the first support portion located on both end sides of the concave portion and the convex portion in the continuous direction and the plurality of first support portions in the continuous direction. Facing the top surface of. Further, the height of the upper surface of the second support portion is higher than the height of the upper surface of the first support portion. Therefore, since the lower surface of the plate-shaped member is curved upward from the first support portion on both end sides toward the second support portion on the center side, the out-of-plane rigidity of the plate-shaped member can be increased. Therefore, when the plate-shaped member is stepped on, the dent of the plate-shaped member can be suppressed. Therefore, since it is possible to prevent the formation of a dented portion, it is possible to prevent water from accumulating on the plate-shaped member.

Further, in the step of attaching the plate-shaped member, the plate-shaped member may be attached to the first support portion and the second support portion in a state in which the plate-shaped member is elastically deformed and bent. In this case, the plate-shaped member is supported by the first support portion and the second support portion in a state where the plate-shaped member is bent by elastic deformation. Therefore, by bending a flat plate member having a uniform thickness by elastic deformation, a plate-shaped member having a raised center side can be obtained. Therefore, a flat plate member having a simple structure can be used as the plate-shaped member, and the cost of the plate-shaped member can be suppressed.

According to the present invention, it is possible to make it difficult for water to collect and to make it difficult to dent.

It is sectional drawing which shows the folded plate structure which concerns on embodiment. It is a cross-sectional view of the folded plate structure of FIG. It is an enlarged cross-sectional view of the 2nd support part of the folded plate structure of FIG.

Hereinafter, embodiments of the folded plate structure and mounting method according to the present invention will be described with reference to the drawings. In the description of the drawings, the same or corresponding elements are designated by the same reference numerals, and duplicate description will be omitted as appropriate.

As shown in FIG. 1, the folded plate structure 1 according to the present embodiment includes a corrugated steel plate 10 in which a concave portion 11 and a convex portion 12 are continuous, and a plate-shaped member 20 attached to an upper portion of the corrugated steel plate 10. The folded plate structure 1 is a folded plate roof. The plate-shaped member 20 is provided on the water side of, for example, a chimney provided with an exhaust port of a roof fan, but the plate-shaped member 20 can be installed in various places.

In the present embodiment, the corrugated steel plate 10 is a single folded plate in which the concave portion 11 and the convex portion 12 are alternately repeated, and the concave portion 11 and the convex portion 12 are continuous via the inclined portion 13. The corrugated steel plate 10 is, for example, a roof deck, and a galvalume steel plate (registered trademark) can be used as the corrugated steel plate 10.

The plate-shaped member 20 is supported above the corrugated steel plate 10 by a support portion 30 provided on the convex portion 12 of the corrugated steel plate 10. The plate-shaped member 20 includes, for example, a lower plate which is a refractory base plate having a uniform thickness and a flat plate member 23, and is composed of an opaque member that does not transmit light. The plate-shaped member 20 is supported so that the central side in the continuous direction D in which the concave portion 11 and the convex portion 12 are continuous is raised. The flat plate member 23 and the upper surface 21 and the lower surface 22 of the lower plate are curved upward toward the center in the continuous direction D. For example, the plate-shaped member 20 is curved in an arc shape.

The flat plate member 23 is provided on the upper surface 21 of the lower plate and surrounds the support portion 30. The flat plate member 23 has a plate shape that surrounds the support portion 30 from above and from the side, and is, for example, a galvalume steel plate (registered trademark). The end portion of the flat plate member 23 in the continuous direction D extends diagonally downward along the inclined portion 13 and is fixed to the side of the lower plate by the screw P1. Further, a plate-shaped folded plate joint may be provided at the end of the plate-shaped member 20 in the continuous direction D, which is interposed between the flat plate member 23 and the lower plate.

FIG. 2 is a cross-sectional view of the folded plate structure 1. As shown in FIG. 2, the support portions 30 are provided between a pair of first support portions 31 provided at both ends in the continuous direction D and a pair of first support portions 31 in the continuous direction D. It includes a second support portion 32. In the present embodiment, the plate-shaped member 20 bridges the four convex portions 12, and the two second support portions 32 are provided between the two first support portions 31 located at both ends in the continuous direction D. There is.

For example, the first support portion 31 may be a goby metal fitting that fixes the end portion of the plate-shaped member 20 in the continuous direction D to the convex portion 12. The first support portion 31 is a separate member from the corrugated steel plate 10. As an example, the first support portion 31 has a bolt accommodating portion having an internal space S1 into which a bolt B1 with a sealing material for fixing the lower plate of the plate-shaped member 20 to the first support portion 31 is inserted. The bolt B1 is screwed into the accommodating portion from above.

The plate-shaped member 20 is in a state where the lower surface 22 is in contact with the upper surface of the bolt accommodating portion of the first support portion 31. Then, the bolt B1 that is screwed into the lower plate of the plate-shaped member 20 from above and penetrates the plate-shaped member 20 vertically and the bolt B2 that penetrates the flat plate member 23 and the lower plate vertically are screwed into the first support portion 31. As a result, the plate-shaped member 20 is fixed to the first support portion 31.

As shown in FIGS. 2 and 3, the second support portion 32 includes a protrusion 32a projecting upward in a rectangular shape and a pair of inclined extension portions 32b extending obliquely downward from the lower end of the protrusion 32a. And have. The second support portion 32 is a separate member from the corrugated steel plate 10, and is, for example, a hat type as a whole. The height of the upper surface of the second support portion 32 is higher than the height of the upper surface of the first support portion 31. In the present specification, the "height of the upper surface of the support portion" indicates the height of the upper surface of the installed support portion, that is, the final installation position of the upper end of the support portion.

Specifically, the height of the protrusion 32a is higher than the height of the bolt accommodating portion of the first support portion 31 described above. The protrusion 32a has a top surface portion 32c to which the lower surface 22 of the plate-shaped member 20 contacts from above, and a side surface portion 32d bent downward at right angles from both ends of the top surface portion 32c in the continuous direction D.

The top surface portion 32c is, for example, flat. A bolt B3 with a sealing material for fixing the plate-shaped member 20 is screwed into the top surface portion 32c. An internal space S2 into which the bolt B3 is inserted is formed between the protrusion 32a having the top surface portion 32c and the pair of side surface portions 32d and the convex portion 12 of the corrugated steel plate 10.

The plate-shaped member 20 is in a state where the lower surface 22 is in contact with the upper surface of the protrusion 32a. Further, the plate-shaped member 20 is screwed from above and the bolt B3 that penetrates the lower plate of the plate-shaped member 20 vertically and the bolt B4 that penetrates the flat plate member 23 and the lower plate vertically are screwed into the top surface portion 32c. Is supported by the second support portion 32.

The inclined extending portion 32b extends obliquely downward from each of the lower end of the protruding portion 32a and both ends in the continuous direction D. The inclination angle of the inclined extension portion 32b is, for example, the same as the inclination angle of the inclined portion 13 of the corrugated steel plate 10. The inclined extending portion 32b is fixed to the corrugated steel plate 10 by screwing the screw P2 with packing into the inclined extending portion 32b and the inclined portion 13 from the outside in a state where each inclined extending portion 32b is in contact with each inclined portion 13. Will be done.

Next, an attachment method for attaching the plate-shaped member 20 to the corrugated steel plate 10 will be described. First, as shown in FIG. 2, a lower plate of a flat plate-shaped member 20 having a uniform thickness is prepared. Then, the first support portion 31 and the second support portion 32 are fixed on the convex portion 12 of the corrugated steel plate 10, and the plate is attached to the first support portion 31 located on one end side (for example, the left side in FIG. 2) in the continuous direction D. The lower plate of the shape member 20 is fixed.

At this time, the lower surface 22 is brought into contact with the upper surface of the first support portion 31, and the bolt B1 is screwed into the lower plate of the plate-shaped member 20 and the first support portion 31 from above to provide the first support at one end in the continuous direction D. The lower plate is fixed to the portion 31. Then, the lower plate is elastically deformed so that the lower surface 22 is brought into contact with the protrusions 32a of each of the second support portions 32, and the bolts B3 are screwed into the lower plate and each of the second support portions 32 from above to make each of the second support portions 32. The lower plate is fixed to 32.

After that, the lower plate of the plate-shaped member 20 is further elastically deformed to fix the lower plate to the first support portion 31 located on the other end side (for example, the right side of FIG. 2) in the continuous direction D. Specifically, as described above, the lower surface 22 is brought into contact with the upper surface of the first support portion 31 and the bolt B1 is screwed into the lower plate and the first support portion 31 from above to bring the lower plate to the first support portion 31. Fix it.

After that, the flat plate member 23 is elastically deformed to cover the lower plate, the first support portion 31 and the second support portion 32 of the plate-shaped member 20 from above and from the side. Then, both ends of the flat plate member 23 in the continuous direction D are placed on the inclined portion 13, and the flat plate member 23 is fixed to the side of the lower plate with screws P1. Further, by screwing the bolt B2 into the flat plate member 23, the lower plate and the first support portion 31 from above, and screwing the bolt B4 into the flat plate member 23, the lower plate and the second support portion 32 from above, the plate-shaped member 20 Installation is complete (process of installing plate-shaped members).

Next, the action and effect obtained from the method of attaching the folded plate structure 1 and the plate-shaped member 20 will be described.

In the method of attaching the folded plate structure 1 and the plate-shaped member 20, the plate-shaped member 20 that bridges at least three (four in this embodiment) convex portions 12 is a first support portion 31 above the convex portions 12. And is supported by the second support portion 32. The lower surface 22 of the plate-shaped member 20 is located between the upper surface of the first support portion 31 located on both ends of the concave portion 11 and the convex portion 12 in the continuous direction D and the plurality of first support portions 31 in the continuous direction D. Facing the upper surface of the second support portion 32, the height of the upper surface of the second support portion 32 is higher than the height of the upper surface of the first support portion 31.

Therefore, the lower surface 22 of the plate-shaped member 20 is curved upward from the first support portion 31 on both end sides toward the second support portion 32 on the center side. Therefore, the out-of-plane rigidity of the plate-shaped member 20 can be increased by bending the lower surface 22 of the plate-shaped member 20 upward toward the center side. Therefore, even if the plate-shaped member 20 is stepped on by a worker who attaches the plate-shaped member 20, it is possible to prevent the plate-shaped member 20 from being dented.

Further, by bending the plate-shaped member 20 upward toward the center side, it is possible to form a gradient in the flat plate member 23 in which the center side becomes higher. Therefore, since rainwater or the like can flow from the center side toward both ends, it is possible to prevent water from accumulating on the plate-shaped member 20.

Further, the plate-shaped member 20 is supported by the first support portion 31 and the second support portion 32 in a state of being bent by elastic deformation. Therefore, by bending a flat plate member having a uniform thickness by elastic deformation, it is possible to obtain a plate-shaped member 20 that curves upward toward the center side. Therefore, even if a flat plate member is used as the plate-shaped member 20, the same effect as described above can be obtained. Therefore, a simple flat plate member can be used as the plate-shaped member 20, and the cost of the plate-shaped member 20 can be suppressed. be able to.

Further, the end portion of the flat plate member 23 in the continuous direction D is bent downward along the side surface of the support portion 30. Therefore, the flat plate member 23 can be easily attached to the side surface of the support portion 30, and the strength in the vicinity of the side surface of the support portion 30 can be increased. Further, the end portion of the flat plate member 23 in the continuous direction D extends diagonally downward along the inclined portion 13 of the corrugated steel plate 10. Therefore, the flat plate member 23 can be easily installed along the inclined portion 13.

Further, the second support portion 32 is a separate member from the corrugated steel plate 10, and the second support portion 32 has a protrusion 32a and a protrusion 32a in which the lower surface 22 of the plate-shaped member 20 faces and protrudes upward. It has a pair of inclined extending portions 32b that extend diagonally downward from the lower end of the portion 32a and come into contact with the corrugated steel plate 10. By configuring the second support portion 32 to include the protrusion 32a and the pair of inclined extending portions 32b in this way, the configuration of the second support portion 32 can be simplified. Therefore, by attaching the second support portion 32 having a simple structure to the corrugated steel plate 10, the structure for supporting the plate-shaped member 20 can be easily provided, and the cost for the second support portion 32 can be suppressed. It becomes.

Although the embodiment of the folded plate structure and the mounting method according to the present invention has been described above, the present invention is not limited to the above-described embodiment and is modified without changing the gist described in each claim. , Or it may be applied to other things. That is, the present invention can be modified in various ways without changing the gist of each claim.

For example, in the above-described embodiment, the first support portion 31 and the second support portion 32, which are separate members from the corrugated steel plate 10, have been described. However, the first support portion and the second support portion may be integrated with the corrugated steel plate 10 or may be a part of the corrugated steel plate 10. For example, the first support portion and the second support portion may be formed by deforming the convex portion 12 of the corrugated steel plate 10.

Further, in the above-described embodiment, the example in which the first support portion 31 is a goby metal fitting has been described, but the shape, size, number, material, and arrangement mode of the first support portion can be appropriately changed. The same applies to the second support portion. For example, the first support portion may have the same hat type as the second support portion 32.

Further, in the above-described embodiment, the plate-shaped member 20 supported by the support portion 30 in a state of being bent by elastic deformation has been described. Here, the plate-shaped member may be supported by the support portion in a state of being bent by elastic deformation at the site, or may be supported by the support portion in a state of being bent by plastic deformation at the site. The plate-shaped member may be supported by the support portion in a bent state. Further, the plate-like member may be pre-bent (for example, before being transported to the site) or may be pre-bent.

Further, in the above-described embodiment, the plate-shaped member 20 including the flat plate-shaped member 23 having a uniform thickness and the lower plate has been described. The arrangement mode can be changed as appropriate. For example, a plate-like member whose central side is thicker than that on both end sides in the continuous direction D may be provided.

Further, in the above-described embodiment, the plate-shaped member 20 provided with the flat plate member 23 and the lower plate has been described, but the lower plate can be omitted. Further, the plate-shaped member according to the present invention may be a single member or may be composed of a plurality of members. That is, the plate-shaped member may be, for example, a flat plate member and a lower plate integrated. Further, the plate-shaped member may be integrated with the support portion. That is, the support portion may be a part of the plate-shaped member. In this case, the integrated plate-shaped member and the support portion can be easily installed on the corrugated steel plate.

Further, in the above-described embodiment, the corrugated steel plate 10 which is a single folded plate has been described, but the corrugated steel plate according to the present invention is not limited to the single folded plate. The corrugated steel sheet may be a double-folded sheet in which a heat insulating material such as glass wool is sandwiched therein, and the shape, size and material of the corrugated steel sheet are not particularly limited. Further, in the above-described embodiment, the folded plate structure 1 which is a folded plate roof has been described, but the folded plate structure according to the present invention can be applied to a structure other than the roof such as a floor.

1 ... Folded plate structure, 10 ... Corrugated steel plate, 11 ... Concave, 12 ... Convex part, 13 ... Inclined part, 20 ... Plate-shaped member, 21 ... Upper surface, 22 ... Lower surface, 23 ... Flat plate member, 30 ... Support part, 31 ... 1st support, 32 ... 2nd support, 32a ... Protrusion, 32b ... Inclined extension, 32c ... Top surface, 32d ... Side, B1, B2, B3, B4 ... Bolt, D ... Continuous direction, P1, P2 ... screw, S1, S2 ... internal space.

Claims (7)

A corrugated steel plate in which concave portions and convex portions are continuous, and a plate-shaped member that bridges at least three of the convex portions.
It is a folded plate structure equipped with
A support portion provided on the convex portion is provided, and the support portion is provided.
The plate-shaped member is supported by the support portion in a state where the lower surface of the plate-shaped member faces the upper surface of the support portion.
The support portion includes a first support portion located on both ends in a continuous direction in which the concave portion and the convex portion are continuous, and a second support portion located between a plurality of the first support portions in the continuous direction. Includes
The height of the upper surface of the second support portion is higher than the height of the upper surface of the first support portion.
Folded plate structure. The height of the upper surface of the second support portion with respect to the recess is higher than the height of the upper surface of the first support portion with respect to the recess.
The folded plate structure according to claim 1. The plate-shaped member is supported by the first support portion and the second support portion in a state of being bent by elastic deformation.
The folded plate structure according to claim 1 or 2. The second support portion is a separate member from the corrugated steel plate.
The second support portion includes a protrusion that projects upward while the lower surfaces of the plate-shaped member face each other, and a pair of inclined extension portions that extend diagonally downward from the lower end of the protrusion and come into contact with the corrugated steel plate. And have,
The folded plate structure according to any one of claims 1 to 3. A mounting method in which a plate-shaped member is hung on at least three convex portions of a corrugated steel sheet having continuous concave portions and convex portions, and the plate-shaped member is attached to a support portion provided on the convex portion.
The support portion includes a first support portion located on both ends in a continuous direction in which the concave portion and the convex portion are continuous, and a second support portion located between a plurality of the first support portions in the continuous direction. Including
The height of the upper surface of the second support portion is higher than the height of the upper surface of the first support portion.
A step of attaching the plate-shaped member to the first support portion and the second support portion by making the lower surface of the plate-shaped member face the upper surface of the first support portion and the upper surface of the second support portion.
Mounting method. The height of the upper surface of the second support portion with respect to the recess is higher than the height of the upper surface of the first support portion with respect to the recess.
The mounting method according to claim 5. In the step of attaching the plate-shaped member, the plate-shaped member is attached to the first support portion and the second support portion in a state of being elastically deformed and bent.
The mounting method according to claim 5 or 6.

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