JP2014194112A - Method for reinforcing folded-plate roof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reinforce an existing folded-plate roof in a simply configured manner without execution of reroofing work.SOLUTION: A method for reinforcing a folded-plate roof 2, which includes a horizontally-elongated roof beam 4 and a folded plate 5 fixed to the roof beam 4, includes: a step S1 of providing an opening 20 in the folded-plate roof 2; a step S2 of arranging a reinforcement member 22 for connecting the roof beam 4 and the folded plate 5 together by means of a bolt fitting 21, from the opening 20; and a step S3 of closing the opening 20.

Description

  The present invention relates to a method for reinforcing a folded plate roof that can easily reinforce an existing folded plate roof that has been aged and that can easily install a solar panel on the existing folded plate roof.

  From the viewpoint of energy saving, a method of installing a solar panel on a folded-plate roof has been widely proposed. As such a construction method, for example, a method of fixing a panel base of a solar panel to a tight frame that supports a folded plate of a folded plate roof or fixing a panel base to the folded plate itself is generally known. (For example, refer to Patent Documents 1 and 2.)

  However, the durability of the folded-plate roof varies greatly depending on the location conditions and maintenance of the building. For example, if it is built in an area close to the sea, or if appropriate maintenance (such as regular painting treatment) is not performed, rust is generated on the folded plate itself or tight frame, and roof strength Incurs a decline.

  Therefore, when a solar panel is attached to an existing folded-plate roof that has been built, the construction period can be extended, such as refurbishing the roof, etc. at the same time, in order to ensure sufficient strength. There is a problem that the construction cost is greatly increased.

JP 2002-30773 A JP 2011-032646 A

  Therefore, the present invention is a folding plate roof that can easily reinforce an existing folded plate roof that has passed the construction age without performing replacement work, and can easily install a solar panel on the existing folded plate roof. It aims to provide a reinforcement method.

In order to solve the above problems, the invention of claim 1 of the present application is a method for reinforcing a folded plate roof, including a roof beam extending horizontally and a folded plate fixed to the roof beam,
Providing an opening in the folded plate roof;
A step of arranging a reinforcing member for connecting the roof beam and the folded plate from the opening using a bolt metal fitting;
And a step of closing the opening.

Further, in claim 2, the roof beam includes an eaves side roof beam extending in the ridge direction on the eave side, and the folded plate roof includes a beam cover that covers and hides the roof beam on the eave side.
The opening is formed by removing the beam cover.

  According to a third aspect of the present invention, the reinforcing member includes an eaves side reinforcing member, and the eaves side reinforcing member includes a supporting hardware fixed to the eaves side roof beam, and a lower side fixed to the supporting hardware and an upper part. The side includes a reinforcing tight frame fixed to the folded plate.

  According to a fourth aspect of the present invention, the reinforcing tight frame has a folded plate-like support portion extending in the ridge direction along the unevenness of the inner surface of the folded plate on the upper side.

Further, in claim 5, the roof beam includes a ridge-side roof beam arranged between eaves on both sides,
The opening is formed by cutting out the upper position of the roof beam on the ridge side in the folded plate,
The reinforcing member includes a ridge-side reinforcing member disposed on the ridge-side roof beam, and the ridge-side reinforcing member is fixed to the flange of the ridge-side roof beam and the upper end side is the folded plate. It is characterized by being fixed to.

  According to a sixth aspect of the present invention, the reinforcement member on the ridge side includes a cylindrical portion disposed between a flange of the roof beam on the ridge side and the folded plate, and an upper portion of the folded plate disposed on the folded plate. The pressure plate includes a cover plate, and a bolt that penetrates the cylindrical portion and fastens the pressure plate and the flange of the roof beam on the ridge side.

Further, in claim 7, the roof beam includes a pair of eaves side roof beams extending in the ridge direction on the eaves side, and a ridge side roof beam disposed between eaves on both sides,
While performing the step of arranging the reinforcing member on each roof beam,
The method further includes a step of fixing a rail member for placing a solar panel on the folded plate roof,
The step of fixing the rail member is characterized in that both ends of the rail member are fixed to the folded plate roof using the bolt metal fittings of the reinforcing member.

  In the method for reinforcing a folded plate roof according to the present invention, as described above, the roof beam and the folded plate are separately connected by a reinforcing member using a bolt metal fitting. Therefore, even when rust or the like occurs in an existing tight frame, the folded plate can be supported by the reinforcing member, and the folded plate roof can be easily reinforced to ensure sufficient roof strength. . Even when a solar panel is installed, the solar panel can be supported by the reinforcing member, not the existing folded plate or tight frame, so that excellent strength and durability can be secured.

  In addition, a part of the folded plate roof is opened, and a reinforcing member is inserted from the opening and attached to the roof beam without requiring a roof replacement work. Therefore, the work does not become a large scale, and the number of work steps is small, and the work can be performed at a low cost with a short construction period.

1 is a perspective view schematically showing a house having a folded roof reinforced by a reinforcing method of the present invention. It is sectional drawing at right angles to the ridge direction which shows the folded-plate roof before reinforcement. It is a perspective view which shows the attachment state to the roof beam of a folded plate. It is a disassembled perspective view explaining the attachment to the roof beam of the eaves side reinforcement member. (A)-(C) are sectional drawings explaining attachment to the roof beam of the eaves side reinforcement member. It is a perspective view explaining attachment to the roof beam of the ridge side reinforcement member. It is sectional drawing explaining the attachment to the roof beam of the ridge side reinforcement member. It is a disassembled perspective view explaining attachment of the rail member for mounting a solar panel on the upper part of a folded-plate roof. (A), (B) is sectional drawing which shows the attachment state of a rail member.

Hereinafter, embodiments of the present invention will be described in detail.
FIG. 1 is a perspective view of a house 1 having a folded plate roof 2 reinforced by the reinforcing method of the present invention. In this example, a plurality of solar panels 3 are installed on the folded plate roof 2. ing.

  FIG. 2 is a sectional view showing the folded plate roof 2A before reinforcement, and includes a roof beam 4 extending horizontally and a folded plate 5 fixed to the roof beam 4. FIG. Specifically, the folded plate roof 2A of the present example includes the roof beam 4, the folded plate 5, the tight frame 6 that supports the folded plate 5, the beam cover 7 that covers and covers the roof beam 4A on the eaves side, It comprises a parapet 8 that covers and hides the eaves end of the folded plate 5.

  Here, the roof beam 4 includes a pair of eaves side roof beams 4A extending in the ridge direction F on the eaves side, and a ridge side roof beam 4B disposed between eaves on both sides. In this example, the case where there is one roof beam 4B on the ridge side is shown, but a plurality of roof beams 4B on the ridge side may be arranged. Each of the roof beams 4 has a base body 10 made of a steel material having an I-shaped cross section in which the upper and lower flanges 10U and 10L are joined by a vertical web 10A in this example. The base body 10 of this example is integrally provided with a pair of hanging pieces 11, 11 that hang down from both side edges of the lower flange 10 </ b> L, and constitutes an outer wall, an inner wall, and the like between the hanging pieces 11, 11. The upper end of the wall member 12 is fixed.

  Further, as shown in FIG. 3, the folded plate 5 is formed of a steel plate material molded in a trapezoidal wave shape. Specifically, the folded plate 5 has a cross-sectional concavo-convex shape in which a substantially trapezoidal chevron portion 5A composed of a top surface portion 5a1 and an inclined surface portion 5a2 is sequentially connected by a bottom surface portion 5B. It is fixed to the roof beam 4.

  As is well known, the tight frame 6 includes a substrate portion 13 extending in the ridge direction F on the upper flange 10U, and a plurality of folded plate-like support portions 14 that are integrally fixed to the substrate portion 13. The substrate portion 13 of this example is bolted to the upper surface of the upper flange 10U, but may be welded. Each support portion 14 bends in a trapezoidal shape along the irregularities on the inner surface of the folded plate 5. Specifically, the support portion 14 includes an oblique side portion 14b along the inner surface of the slope portion 5a2 and a top side portion 14a along the inner surface of the top surface portion 5a1. Further, a sword tip bolt 15 projects from the top surface of the top side portion 14a, and the top surface portion 5a1 of the folded plate 5 is fixed by using the sword tip bolt 15.

  As shown in FIG. 2, the beam cover 7 has a well-known structure and is detachably fixed to the eaves side roof beam 4A via bolts or the like. The beam cover 7 includes a cover main body 7A that covers the front surface of the roof beam 4A, and a face door portion 7B that is attached to the cover main body 7A and closes the mountain-shaped portion 5A of the folded plate 5. In this face door portion 7B, a louver for ventilation is formed in this example.

  The parapet 8 also has a well-known structure, and is fixed on the top surface portion 5a1 of the folded plate 5 through a bolt or the like, and is disposed at the front end of the fixed plate portion 8A. A parapet main body 8B covering the eaves tip of the plate 5 is provided. The parapet main body 8B is provided with a well-known eaves bowl 8B1 that receives rainwater from the folded plate 5.

  Then, the existing folded plate roof 2A is reinforced by the reinforcing method of the present invention using the reinforcing member 22.

The reinforcing method is:
(1) Step S1 of providing an opening 20 in the folded plate roof 2A;
(2) Step S2 of arranging a reinforcing member 22 for connecting the roof beam 4 and the folded plate 5 from the opening 20 using a bolt metal fitting 21;
(3) The process S3 which closes the said opening part 20 is included.

  Specifically, the reinforcing method of the present example includes an eaves side reinforcing method for reinforcing the folded plate roof 2A on the eaves side, and a ridge side reinforcing method for reinforcing on the ridge side. And this eaves-end side reinforcement method and ridge side reinforcement method are comprised including said process S1, S2, S3, respectively.

  Below, the eaves side reinforcement method and the ridge side reinforcement method are demonstrated in order. In the eaves side reinforcement method, step S1 is a step of forming an opening 20A that exposes the front side of the roof beam 4A. In this example, at least the beam cover 7 is removed to form the opening 20A. The In this example, the parapet 8 is also removed. In this step S1, the opening 20A may be formed by partially removing the beam cover 7 or partially cutting it.

  Next, as shown in FIGS. 4 and 5 (A) to (C), the reinforcing member 22A on the eaves side is attached in the step S2. The eaves side reinforcement member 22A includes a support metal 23 fixed to the eaves side roof beam 4A, and a reinforcement tight frame 24 whose lower side is fixed to the support metal 23 and whose upper side is fixed to the folded plate 5. Including. The support metal 23 and the reinforcing tight frame 24 are inserted from the opening 20A.

  In this example, the support metal 23 is connected to the web 10A of the roof beam 4A from the eaves side via a bolt metal 21 and is connected to the vertical piece 23a via a bent part 23b. A horizontal mounting piece 23c. The mounting piece 23c has substantially the same height as the flange 10U on the roof beam 4A, and is adjacent to the flange 10U on the eaves side.

  The reinforcing tight frame 24 has substantially the same configuration as the tight frame 6, and includes a substrate portion 25 straddling between the attachment pieces 23 c and 23 c, and a plurality of folded plates that are integrally fixed to the substrate portion 25 and arranged in the ridge direction. And a support 26 having a shape. The substrate portion 25 is bolted to the upper surface of the attachment piece portion 23c. Further, the support portion 26 bends in a trapezoidal shape along the unevenness of the inner surface of the folded plate 5. Specifically, the support portion 26 includes an oblique side portion 26b along the inner surface of the slope portion 5a2, and a top side portion 26a along the inner surface of the top surface portion 5a1. Further, a screw hole 27 is formed in the top side portion 26 a and is fixed to the top surface portion 5 a 1 of the folded plate 5 through a bolt metal fitting 21.

  In step S3 (not shown), the opening 20A is closed. As step S3, the opening 20A may be closed by reattaching the beam cover 7 and the parapet 8 removed in step S1. However, the opening 20 </ b> A can be closed using a new beam cover 7 and a parapet 8.

  Next, as shown in FIGS. 6 and 7, in the ridge side reinforcement method, in step S <b> 1, the opening 20 </ b> B is formed by cutting out the upper position of the ridge side roof beam 4 </ b> B in the folded plate 5. Specifically, the opening 20B is formed in the top surface part 5a1 of the folded plate 5, and thereby exposes a part of the flange 10U on the roof beam 4B located below.

  Next, in the step S2, a ridge-side reinforcing member 22B having a lower end fixed to the flange 10U on the ridge-side roof beam 4B and an upper end fixed to the folded plate 5 is used. Specifically, the ridge-side reinforcing member 22 </ b> B includes a cylindrical portion 30, a pressing plate 31, and a bolt metal member 21 in this example. The cylindrical portion 30 is formed of a pipe body having a rectangular or circular cross section, for example. The cylindrical portion 30 is inserted from the opening 20B and is disposed between the flange 10U on the roof beam 4B and the folded plate 5. At this time, the upper surface of the cylindrical portion 30 is substantially the same height as the upper surface of the top surface portion 5a1 of the folded plate 5.

  The pressing plate 31 is arranged on the upper side of the folded plate 5 and covers the opening 20B. The holding plate 31 of this example has a long plate shape extending in the ridge direction F and covers each of the plurality of openings 20B arranged in the ridge direction F. A sealing material such as a rubber elastic material is preferably attached to the bottom surface of the pressing plate 31, thereby ensuring waterproofness to the opening 20 </ b> B. In addition, you may give a waterproofing process separately.

  Further, the bolt fitting 21 of the reinforcement member 22B on the ridge side is a long bolt fitting extending through the cylindrical portion 30, and fastens the pressing plate 31 and the flange 10U of the roof beam 4B. Thereby, detachment of the folded plate 5 from the roof beam 4B is prevented. As the bolt metal fitting 21, a so-called one-side bolt of one-side construction can be suitably employed.

  Moreover, in this example, the process S3 which closes the said opening part 20B by the attachment of the pressing plate 31 by the said bolt metal fitting 21 is performed.

  And by using the said reinforcement method, it becomes possible to install the solar panel 3 firmly in the existing folded-plate roof 2A.

  In this case, the step S2 for arranging the reinforcing members 22A and 22B on the roof beams 4A and 4B, respectively, is performed, and the solar panel 3 is placed on the folded plate roof 2 as shown in FIG. Step S4 for fixing the rail member 35 is performed. In this step S <b> 4, both end portions of the rail member 35 are fixed to the folded plate roof 2 using the bolt fittings 21 of the reinforcing member 22.

  The rail member 35 of this example is a long body extending between the eaves on both sides. Then, as shown in FIG. 9A, both end portions of the rail member 35 in the length direction fold the bolt fitting 21 of the reinforcing member 22A on the eaves side, specifically, the top side portion 26a of the reinforcing tight frame 24. It is fastened together by a bolt metal fitting 21a that is fixed to the top surface portion 5a1 of the plate 5.

  On the other hand, as shown in FIG. 9B, the center side of the rail member 35 includes the bolt metal member 21 of the reinforcing member 22B on the ridge side, specifically, the pressing plate 31 and the flange 10U of the roof beam 4B. The bolts 21b are fastened together.

  The rail member 35 is formed to be shorter than the present example, one end of which is fixed by the bolt metal 21a of the eaves side reinforcing member 22A, and the other is fixed by the bolt metal of the ridge side reinforcing member 22B. You may fix with 21b. When there are a plurality of roof beams 4B on the ridge side, both end portions of the rail member 35 can be fixed by the bolt metal fittings 21b of the reinforcement member 22B on the ridge side.

  The rail member 35 of this example is mounted on the top surface portion 5a1 of the folded plate 5 and is fixed to the reinforcing member 22 (22A or 22B) by the bolt metal fitting 21 (21a or 21b). And an upper mounting plate portion 35c connected through a standing piece portion 35b rising from one side edge of the lower mounting plate portion 35a. The support frame 36 of the solar panel 3 is bolted to the upper mounting plate portion 35a.

  In this way, when the solar panel 3 is installed, the rail member 35 that supports the solar panel 3 is supported by the roof beam 4 via the reinforcing member 22. Therefore, even when the existing tight frame 6 is deteriorated in strength due to rust or the like, the solar panel 3 can be safely supported by the newly installed reinforcing member 22 without causing insufficient strength.

  Further, in the reinforcing method of the present invention, a roof replacement work is not required, a part of the folded plate roof 2 is opened, and the reinforcing member 22 is inserted from the opening to be attached to the roof beam 4. Therefore, the number of work steps is small, and the work can be performed at a low cost with a short construction period.

2 Folded plate roof 3 Solar panel 4 Roof beam 4A Eaves side roof beam 4B Building side roof beam 5 Folded plate 7 Beam cover 10U Flange 20 Opening 21 Bolt fitting 22 Reinforcement member 23 Support hardware 24 Reinforcement tight frame 26 Support unit 30 Cylindrical part 31 holding plate 35 rail member S1-S4 process

Claims (7)

A method for reinforcing a folded-plate roof, comprising a roof beam extending horizontally and a folded plate fixed to the roof beam,
Providing an opening in the folded plate roof;
A step of arranging a reinforcing member for connecting the roof beam and the folded plate from the opening using a bolt metal fitting;
And a step of closing the opening. The roof beam includes an eaves side roof beam extending in the ridge direction on the eave side, and the folded plate roof includes a beam cover that covers and hides the roof beam on the eave side,
The method for reinforcing a folded plate roof according to claim 1, wherein the opening is formed by removing the beam cover.   The reinforcing member includes an eaves side reinforcing member, the eaves side reinforcing member is fixed to the eaves side roof beam, the lower side is fixed to the supporting metal, and the upper side is fixed to the folded plate. The method for reinforcing a folded plate roof according to claim 2, further comprising: a reinforced tight frame.   The said reinforcement tight frame has the folded-plate-shaped support part extended in the ridge direction along the unevenness | corrugation of the inner surface of the said folded plate on the said upper side, The reinforcing method of the folded-plate roof of Claim 3 characterized by the above-mentioned. The roof beam includes a ridge-side roof beam arranged between eaves on both sides,
The opening is formed by cutting out the upper position of the roof beam on the ridge side in the folded plate,
The reinforcing member includes a ridge-side reinforcing member disposed on the ridge-side roof beam, and the ridge-side reinforcing member is fixed to the flange of the ridge-side roof beam and the upper end side is the folded plate. The method for reinforcing a folded plate roof according to any one of claims 1 to 4, wherein the folded plate roof is fixed to the roof.   The reinforcement member on the ridge side includes a cylindrical portion disposed between a flange of the roof beam on the ridge side and the folded plate, a pressing plate disposed on the upper side of the folded plate and covering the opening, 6. The method for reinforcing a folded-plate roof according to claim 5, further comprising: a bolt fitting that penetrates the tubular portion and fastens the pressing plate and the flange of the roof beam on the ridge side. The roof beams include a pair of eaves side roof beams extending in the ridge direction on the eaves side, and a ridge side roof beams arranged between eaves on both sides,
While performing the step of arranging the reinforcing member on each roof beam,
A step of fixing a rail member for mounting a solar panel on the folded plate roof;
The step of fixing the rail member includes fixing both end portions of the rail member to the folded plate roof using the bolt metal fittings of the reinforcing member. Method of reinforcing folded roof.

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