JP4904129B2 - Roof renovation metal fittings, renovation structure of existing roof, renovation method of existing roof - Google Patents

Description

  The present invention relates to a roof repair metal fitting used when renovating an existing roof using a corrugated slate plate, a repair structure of the existing roof using the same, and a repair method of the existing roof.

  Conventionally, as a method of repairing aging slate roofs used in factories and warehouses, existing slate plates are made of roll-formed steel sheets (painted steel sheets, galvalume-plated steel sheets, etc.) of about 0.4 to 0.6 mm. The refurbishment method that covers without removing the mainstream has become the mainstream due to measures such as countermeasures for industrial waste disposal and renovation work without stopping operation. Above all, due to recent problems such as asbestos pollution, so-called indirect fixing methods that can be installed without drilling or drilling holes in existing slate plates tend to gradually increase. It has been proposed (see, for example, Patent Document 1).

  When constructing an aging slate roof, it is difficult to detect cracks and reduced strength because the slate plate has accumulated many years of dirt on the surface, and it became obsolete during construction and pre-investigation. In some cases, the slate plate broke and tools and debris dropped, or in some cases, the installer stepped on the slate plate and dropped it, resulting in death.

  Therefore, safety has been improved by laying a safety net on the entire surface of the slate roof or laying a wooden or aluminum scaffolding board during construction, but there are problems with workability and functionality. was there. In addition, a method of laying and sliding a scaffolding plate between the main buildings has been developed recently, but there are many problems in securing safety, high cost, workability, etc. during the preliminary survey. However, since the slate plate cannot be penetrated with screws or the like, there was anxiety about strength against the wind-up of the scaffold plate.

In particular, a small wave slate plate having a low strength is often used for the roof. However, in this case, since the danger of stepping out is increased as compared with the large wave slate plate, the problem is great.
Japanese Patent No. 3809100

  The present invention was made in view of the above points, while preventing the slate plate from being stepped out with the scaffold plate and ensuring safety during construction and preliminary survey, blowing up the scaffold plate with wind, high cost, An object of the present invention is to provide a roof repair bracket, a repair structure of an existing roof, and a repair method of an existing roof that can reduce the poor workability.

  The metal fitting for roof repair A according to claim 1 of the present invention is disposed on the upper surface of the corrugated slate plate 2 in order to repair the roof by attaching a new roof material 3 above the corrugated slate plate 2 of the existing roof 1. The roof repair metal fitting A, which is placed on the upper side of the ridges 4 of the corrugated slate plate 2 and parallel to the longitudinal direction of the ridges 4 of the corrugated slate plate 2 of the placement portion 5. Projecting downward from both ends of the leg 7 that is disposed in the groove 6 of the corrugated slate plate 2 and projecting from the end of the mounting portion 5 perpendicular to the longitudinal direction of the ridge 4 of the corrugated slate plate 2; It is characterized by comprising a connecting piece 9 for connecting the scaffold plate 8 placed on the wavy slate plate 2.

  The repair structure of the existing roof according to claim 2 of the present invention is a repair structure of the existing roof 1 using the roof repair metal fitting A according to claim 1, and the mounting portion 5 of the roof repair metal fitting A is provided. A plurality of roof repair metal fittings A are arranged on the upper side of the ridges 4 of the corrugated slate plate 2 and the leg portions 7 of the roof repair metal fittings A are arranged in the concave grooves 6 on both sides of the ridges 4. Arranged on the upper surface of the plate 2, the scaffold plate 8 is placed on the corrugated slate plate 2, the scaffold plate 8 is connected to the connecting piece 9 of the roof repair bracket A, and a plurality of main building materials 10 are mounted on the roof repair bracket. It is mounted on the mounting portion 5 of A and is installed above the corrugated slate plate 2, and the new roofing material 3 is installed on the main building material 10.

  A method for repairing an existing roof according to claim 3 of the present invention is a method for repairing an existing roof 1 using the roof repair metal fitting A according to claim 1, wherein the mounting portion 5 of the roof repair metal fitting A is provided. A plurality of roof repair metal fittings A are arranged on the upper side of the ridges 4 of the corrugated slate plate 2 and the leg portions 7 of the roof repair metal fittings A are arranged in the concave grooves 6 on both sides of the ridges 4. The scaffolding plate 8 is disposed on the upper surface of the plate 2 and the scaffolding plate 8 is placed on the corrugated slate plate 2, and the scaffolding plate 8 is coupled to the coupling piece 9 of the roof repair metal fitting A, while an operator rides on the scaffolding plate 8. A plurality of main building materials 10 are mounted on the mounting portion 5 of the roof refurbishment bracket A and are installed above the corrugated slate plate 2, and a new roof material 3 is installed on the main building material 10. is there.

  The method for repairing an existing roof according to claim 4 of the present invention is the method for repairing an existing roof according to claim 3, wherein an operator rides on the scaffold plate 8 and the roof repair bracket A and the scaffold plate 8 above the scaffold plate 8. It is characterized by construction.

  The roof repair metal fitting A according to claim 1 of the present invention is provided on the upper surface of the corrugated slate plate 2, and then the scaffold plate 8 is connected to the connecting piece 9, whereby the corrugated slate plate 2 is stepped out by the scaffold plate 8. While securing the safety during construction and pre-investigation, it is possible to prevent the scaffolding board 8 from being blown up by the wind, and the scaffolding board can be laid or slid across the main building. Compared with the construction method such as, it is possible to reduce the cost and poor workability.

  The repair structure of the existing roof of claim 2 of the present invention can prevent the corrugated slate plate 2 from being stepped out by the scaffold plate 8 by connecting the scaffold plate 8 to the connecting piece 9 of the roof repair bracket A, While ensuring safety during construction and prior surveys, it is possible to prevent the scaffold board 8 from being blown up by the wind, and compared to construction methods such as laying and sliding the scaffold board over the entire main building. It is possible to reduce the cost and poor workability.

  The method of repairing an existing roof according to claim 3 of the present invention can prevent the corrugated slate plate 2 from being stepped on by the scaffold plate 8 by connecting the scaffold plate 8 to the connecting piece 9 of the roof repair bracket A. While ensuring safety during construction and prior surveys, it is possible to prevent the scaffold board 8 from being blown up by the wind, and compared to construction methods such as laying and sliding the scaffold board over the entire main building. It is possible to reduce the cost and poor workability.

  Hereinafter, the best mode for carrying out the present invention will be described.

  The repair structure of the existing roof 1 of the present invention is formed by covering the entire surface of the existing roof 1 provided with the corrugated slate plate 2 with the new roof material 3. The corrugated slate plate 2 has a cross-sectional shape in which the ridges 4 and the groove 6 are alternately and continuously provided, and the height difference between the ridges 4 and the grooves 6 is about 35 to 40 mm and adjacent ridges. 4. A large wave slate plate with an interval between 4 and 4 of about 120 to 140 mm, or a small wave with an interval between the adjacent ridges 4 and 4 of about 15 to 30 mm with a difference in height between the ridge 4 and the groove 6 of about 60 to 100 mm. Although there is a slate plate, the present invention can be applied to any existing roof 1 using any corrugated slate plate 2, and is particularly suitable for the existing roof 1 using a small-wave slate plate having a lower strength than the large-wave slate plate. Can be used.

  The repair structure of the existing roof 1 of the present invention can be formed using the roof repair bracket A, the purlin member 10, the new roof member 3, and the scaffold plate 8.

  The roof repair metal fitting A is a metal fitting made by bending or pressing a metal plate such as a stainless steel plate. As shown in FIGS. 1 (a), (b), and (c), the mounting portion 5 and the leg portion 7 are provided. The connecting piece 9 is formed. The upper part of the roof repair metal fitting A is formed as a substantially rectangular mounting part 5 in plan view, and a long groove part 20 is formed in a substantially central part of the upper surface of the mounting part 5 in the lateral direction. One leg portion 7 is provided on each side end (side end parallel to the longitudinal direction of the ridges 4 of the corrugated slate plate 2) of the roof repair metal fitting A. Each leg portion 7 and 7 is a mounting portion. 5 extends so as to protrude substantially vertically downward. Further, the lower end portion of the leg portion 7 is formed with an installation portion 21 having a substantially arc-shaped cross section by bending. The water side of the mounting part 5 (the end which is orthogonal to the longitudinal direction of the ridges 4 of the corrugated slate plate 2 and which faces the upper side of the roof slope when the roof repair fitting A is disposed on the existing roof 1 ) Is extended so that a protruding piece 22 protrudes substantially vertically downward, and a connecting piece 9 protruding on the opposite side (outside) from the mounting portion 5 side protrudes at the lower end of the protruding piece 22. It is provided substantially perpendicular to the piece 22.

  A bolt insertion hole 23 is formed in a substantially central portion of the bottom portion of the groove portion 20 provided in the mounting portion 5. The bolt insertion hole 23 is formed as a long hole that is long in a direction substantially parallel to the longitudinal direction (lateral direction) of the groove 20. Further, crimping holes 24, 24 are provided at the bottom of the groove 20 on both sides in the longitudinal direction of the bolt insertion hole 23. The caulking hole 24 is also formed as a long hole that is long in a direction substantially parallel to the longitudinal direction of the groove 20. The groove 20 is provided with a locking tool 25. The locking tool 25 is formed by providing a bolt insertion hole 36 at a substantially central portion of a rectangular metal plate and projecting a pair of opposing locking pieces 27 at the edge of the bolt insertion hole 36 by cutting and raising. It is. Then, the eyelet rods 26, 26 are attached so as to penetrate both ends of the locking tool 25, and the eyelet eyelets 26, 26 are inserted into the caulking holes 24, 24 of the groove portion 20. By crushing and caulking 26, the locking tool 25 is attached to the upper surface of the bottom of the groove 20. The eyelet lid 26 is inserted so as to be movable along the longitudinal direction of the caulking hole 24, whereby the locking tool 25 is formed to be slidable along the longitudinal direction of the groove portion 20.

  As the main building material 10, a long metal material such as a shape steel can be used, and for example, it can be formed in a substantially hat-shaped cross section. The main body material 10 having a substantially hat-shaped cross section is composed of a support portion 10a having a substantially U-shaped cross section whose bottom surface is open, and support pieces 10b and 10b projecting outward from both lower ends of the support portion 10a.

  Any new roofing material 3 can be used as long as it is a known roofing material. For example, a metal folded plate having a cross-sectional shape in which peak portions 30 and valley portions 31 are alternately and continuously repeated can be used.

  The scaffold plate 8 can be anything as long as it is a plate that has been conventionally used as a scaffold plate. For example, a coated steel plate, an aluminum plate, a wooden plate, or the like can be used. Square wave molded products are preferred in terms of strength and size. For example, the scaffold 8 preferably has a working width of about 250 to 500 mm and a thickness of about 0.35 to 0.6 mm.

  And the repair method of the existing roof 1 of this invention is performed as follows.

  First, the above-described roof refurbishment bracket A is disposed on the uppermost surface of the existing roof 1 on the lowermost side (the lowermost side in the roof gradient of the existing roof 1 and usually the eaves side). In this case, as shown in FIG. 2, the top of the existing roof 1 protrudes from the tip of a bolt 28 that fixes the corrugated slate plate 2 to a structural material such as a purlin of the building. Attach the repair bracket A. That is, the roof repairing bracket A is brought close to the bolt 28 protruding so as to pass through the ridges 4 of the corrugated slate plate 2, and the bolt 28 is inserted into the bolt insertion hole 23 of the groove portion 20 from the lower side. The tip of 28 is inserted into the bolt insertion hole 36 of the locking tool 25 from below, and the tip of this bolt 28 is also inserted between the pair of locking pieces 27, 27 of the locking tool 25 from below. . Then, the roof repair metal fitting A is pushed down to the corrugated slate plate 2 side until the installation portion 21 at the lower end of the leg portion 7 of the roof repair metal fitting A reaches the groove 6. In this way, as shown in FIG. 3, the roof refurbishment bracket A can be attached to the bolt 28, and the end of the locking pieces 27, 27 is locked to the thread on the outer periphery of the bolt 28. The metal fitting A can be fixed so as not to come off from the bolt 28. Further, as shown in FIGS. 4A and 4B, the roof repair fitting A is disposed so as to straddle the ridges 4. That is, the mounting portion 5 and the connecting piece 9 are positioned above the ridge 4, and the leg portions 7 and 7 are positioned in the concave grooves 6 and 6 on both sides of the ridge 4, respectively. Moreover, the connection piece 9 is arrange | positioned toward the water upper side (the upper side in the roof gradient of the existing roof 1, and usually a ridge side).

  After arranging a plurality of roof repair metal fittings A, A... In a line on the most underwater side of the existing roof 1 as described above, connecting pieces 9 of these roof repair metal fittings A, A. Connect the scaffolding plate 8 to 9. That is, the scaffolding plate 8 is disposed on the water upper side of the roof repair brackets A, A... Attached to the existing roof 1, and the screw plate screw having a length of 10 to 15 mm is connected to the connecting piece 9 at the lower end of the scaffolding plate 8. Fix it with a fixture such as Here, when the scaffold board 8 is rectangular, the direction perpendicular to the roof gradient (the direction perpendicular to the longitudinal direction of the main purlin of the building and the direction of the beam) is made to coincide with the longitudinal direction of the scaffold board 8. To. Further, a plurality of scaffolding plates 8, 8... May be used side by side in a direction orthogonal to the roof gradient. Further, one scaffold plate 8 may be connected and fixed to a plurality of roof repair metal fittings A connecting pieces 9, or a plurality of roof repair metal fittings A, A. You may connect and fix to.

  After the scaffolding plate 8 is laid on the corrugated slate plate 2 of the existing roof 1 as described above, the bolts 28 arranged in the direction perpendicular to the roof gradient on the water upper side than the scaffolding plate 8, that is, the most water. .. Are further attached to the bolts 28, 28..., Which are arranged in the second row in a direction perpendicular to the roof slope, counting from the bolts 28 arranged on the lower side. The mounting method of the second roof repair metal fitting A is the same as described above. Next, the scaffolding plate 8 is connected and laid to the connecting pieces 9, 9... Of the roof repair fittings A, A. The method for connecting the second scaffolding plate 8 to the connecting piece 9 and the laying method are the same as described above.

  As shown in FIG. 5, the construction is sequentially performed from the water side to the water side while alternately repeating the arrangement of the roof repair metal fitting A and the laying of the scaffolding plate 8. Here, the first roof repair metal fitting A and the scaffolding board 8 to be arranged on the most underwater side are constructed without being placed on the corrugated slate board 2 of the existing roof 1, but the second and subsequent roof repair metal fittings A As shown in FIG. 6, the installation work of the scaffolding plate 8 can be performed on the scaffolding plate 8 constructed before that. Therefore, the operator can not get on the corrugated slate plate 2 directly and the stepping of the corrugated slate plate 2 can be prevented, and safety can be ensured.

  Next, as shown in FIGS. 7 and 8, a plurality of purlins are placed above the corrugated slate plate 2 by placing the purlin material 10 on the roof refurbishment brackets A, A. The materials 10, 10 ... are installed. At this time, the support piece 10b of the purlin member 10 is placed on the mounting portion 5 of the roof repair metal fitting A, and the support piece 10b and the mounting portion 5 are connected by a fixing tool such as a screw screw, and the roof repair metal fitting. A purlin member 10 is fixed to A. In addition, the tip of the bolt 28 protruding above the groove 20 is positioned on the inner side (lower side) of the support portion 10 a of the purlin material 10. Further, the purlin member 10 is arranged so that its longitudinal direction is substantially parallel to a direction orthogonal to the roof gradient of the existing roof 1. The construction of the purlin material 10 can also be carried out on the scaffolding plate 8 laid as described above, so that the operator can no longer ride directly on the corrugated slate plate 2 to prevent the corrugated slate plate 2 from being stepped on. Can be secured.

  Next, as shown in FIGS. 7 and 8, the new roofing material 3 is placed over the support portions 10 a of the plurality of purlin members 10, 10... A plurality of new roofing materials 3, 3,. At this time, the new roofing material 3 is arranged so that the longitudinal direction of the peak part 30 and the valley part 31 is substantially parallel to the direction of the roof gradient of the existing roof 1. Further, the new roof material 3 is fixed to the support portion 10a with a fixing tool such as a bolt. Thus, the existing roof 1 can be repaired by attaching the new roof material 3 above the corrugated slate plate 2 and covering the entire existing roof 1 with the new roof material 3. And since the construction of the new roofing material 3 can be carried out on the scaffolding plate 8 laid as described above, the operator can no longer get on the corrugated slate plate 2 and step on the corrugated slate plate 2. Can be prevented and safety can be ensured.

  In the above modified structure of the present invention, as shown in FIGS. 9 and 10, the scaffolding plate 8 remains laid after the construction of the new roofing material 3 (so-called laying down). Removal work can be eliminated, and complicated work can be reduced compared with the method of sliding the scaffolding plate, reducing the labor involved in construction and reducing poor workability and high cost. can do. In addition, in the above, the main building material 10 and the new roof material 3 are constructed after the construction of the scaffold board 8, but this is not the only case. It is also possible to lay only the scaffold board 8 and forward the unnecessary scaffold board 8 to a place necessary for the next construction. Further, the roof repair metal fitting A need not be attached to all the bolts 28, and the roof repair metal fitting A may be attached only to the necessary bolts 28 in consideration of the attachment strength of the scaffolding plate 8 and the like. For example, before constructing the main building material 10 or the new roof material 3, in the case of securing a scaffold to investigate the state of the corrugated slate plate 2 in advance, the installation interval of the roof repair brackets A and A is increased, The scaffold plate 8 can be temporarily fixed to the connecting piece 9 and laid.

The roof repair metal fitting of this invention is shown, (a) (b) is a perspective view, (c) is a bottom view. It is a perspective view which shows the existing roof in this invention. It is a perspective view which shows the state which attached the metal fitting for roof repair of this invention. The state which attached the metal fitting for roof repair of this invention is shown, (a) (b) is a perspective view. It is a perspective view which shows the state which attached the metal fitting for roof repair of this invention, and a scaffold board. It is a perspective view which shows the construction middle of this invention. It is the perspective view which abbreviate | omitted one part which shows the repair structure of this invention. It is the perspective view which abbreviate | omitted one part which shows the repair structure of this invention. It is a partial sectional view showing the repair structure of the present invention. It is a partial sectional view showing the repair structure of the present invention.

Explanation of symbols

A Roof repair metal fittings 1 Existing roof 2 Corrugated slate plate 3 New roofing material 4 Convex strip 5 Placement part 6 Concave groove 7 Leg part 8 Scaffold board 9 Connecting piece 10 Purlin material

Claims (4)

  In order to renovate the roof by attaching a new roofing material above the corrugated slate plate of the existing roof, it is a roof repair metal fitting disposed on the upper surface of the corrugated slate plate, above the ridge of the corrugated slate plate A mounting portion, a leg portion that protrudes downward from both side ends parallel to the longitudinal direction of the ridge of the wavy slate plate of the mounting portion, and is disposed in the groove of the wavy slate plate; A roof repairing fitting, comprising: a connecting piece that protrudes from an end perpendicular to the longitudinal direction of the ridges of the corrugated slate plate and connects a scaffold plate placed on the corrugated slate plate.   A repair structure of an existing roof using the roof repair bracket according to claim 1, wherein the mounting portion of the roof repair bracket is arranged on the upper side of the ridge of the corrugated slate plate and the leg of the roof repair bracket Are arranged in the concave grooves on both sides of the ridges, so that a plurality of roof repair fittings are arranged on the upper surface of the corrugated slate plate, and the scaffold plate is placed on the corrugated slate plate and the scaffold plate is used for roof repair. It is connected to the connecting piece of the metal fittings, and a plurality of main building materials are mounted on the mounting part of the roof repair metal fittings, installed above the corrugated slate plate, and a new roofing material is installed on the main building material. Renovation structure of the existing roof.   It is the repair method of the existing roof using the roof repair metal fitting of Claim 1, Comprising: The mounting part of a roof repair metal fitting is arrange | positioned above the protruding item | line of a corrugated slate board, and the leg part of a roof repair metal fitting Are arranged in the concave grooves on both sides of the ridges, so that a plurality of roof repair fittings are arranged on the upper surface of the corrugated slate plate, and the scaffold plate is placed on the corrugated slate plate and the scaffold plate is used for roof repair. Connected to the connecting piece of the metal fittings, while a worker rides on this scaffolding board, a plurality of main building materials are mounted on the mounting part of the roof repairing metal fittings and are installed above the corrugated slate plate and a new roofing material is used as the main building material A method of repairing an existing roof, characterized by laying down 4. The method for repairing an existing roof according to claim 3, wherein the roof repair bracket and the scaffold plate are constructed above the scaffold plate while an operator rides on the scaffold plate.

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