JP5876809B2 - Renovation method and equipment for metal thatched roof - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a repair method for repairing a roof that is covered with a metal plate, and a repair tool used in the repair.

  Conventionally, there are a straw-barbed roof and a folded-plate roof as a metal-roofed roof made of metal plates. A straw-bar-roofed roof is formed by fixing a straw bar to a field board and covering the field board and the straw bar with a metal plate. For this reason, a convex part will be formed in a straw bar thatched roof corresponding to the fixed position of a straw bar. Further, the folded plate roof is formed by bending a metal plate so that peaks and valleys can be alternately formed. In this folded plate roof, the mountain portion becomes a convex portion.

  When the metal plate of the metal thatched roof has deteriorated over time, it is repaired by covering the metal plate from above with a waterproof sheet. At the time of renovation, for example, as disclosed in Patent Document 1, a reinforcing piece is screwed to one convex portion of a metal plate, and further, a fixing piece is screwed to the reinforcing piece, and then a waterproof sheet on the roof The waterproof sheet is fixed to the fixing piece.

Japanese Patent No. 2978171

  By the way, the thickness of the metal plate of the straw-barbed roof and the folded-plate roof is often as thin as about 0.6 to 0.8 mm, and when the repair is necessary, the corrosion of the metal plate is proceeding. In some cases, it is considered that the strength of the convex portion of the metal plate is reduced.

  When the repair method of Patent Document 1 is used, a wind load acts on the reinforcing piece via the fixing piece of the waterproof sheet. At this time, the reinforcing piece is screwed to one convex portion of the metal plate. Therefore, it is conceivable that a wind load acts on one convex portion intensively, and a desired fixing strength cannot be obtained particularly in a strong wind.

  Further, in Patent Document 1, since the reinforcing piece is screwed to one convex portion of the metal plate, the fixing piece must be arranged so as to overlap the same convex portion. However, there was a problem that workability at the time of repair work was poor.

  The present invention has been made in view of such points, and the object of the present invention is to provide a strength sufficient to withstand wind loads when repairing a roof that is covered with a metal plate, and is waterproof. An object of the present invention is to improve the workability at the time of repair work by improving the degree of freedom of the arrangement position of the member for fixing the sheet.

  In order to achieve the above object, in the present invention, a reinforcing member is disposed so as to extend from the first convex portion to the second convex portion of the metal plate, and the reinforcing member is fixed to the first convex portion and the second convex portion. I did it.

1st invention arrange | positions a reinforcing member ranging from the 1st convex part formed in the metal plate of a straw-bar-roofed roof or a folded-plate roof to a 2nd convex part, The top part of the said 1st convex part in this reinforcing member Fixing each of the first side plate portion and the second side plate portion extending downward from both side edges of the upper plate portion extending from the top to the top of the second convex portion to the first convex portion and the second convex portion with screws. And a fixing member for fixing the waterproof sheet is disposed immediately above the concave portion between the first convex portion and the second convex portion, and the first convex portion and the second convex portion after the step of fixing to the reinforcing member by screws screwed to the reinforcing member from above so as to protrude between,
A method for refurbishing a metal thatched roof, characterized by covering the roof with the waterproof sheet and fixing the waterproof sheet to the fixing member.

  According to this configuration, since the reinforcing member is fixed to the first convex portion and the second convex portion, when the wind load acts on the reinforcing member via the fixing member, the first convex portion and the second convex portion Will be distributed. Therefore, the strength that can sufficiently withstand the wind load is obtained.

  In addition, since the reinforcing member extends from the first convex portion to the second convex portion, not only the first convex portion and the second convex portion are disposed, but the first convex portion and the second convex portion are disposed on the fixing member. It is possible to arbitrarily set between the two convex portions, and workability at the time of repair work is improved.

2nd invention is arrange | positioned ranging from the 1st convex part formed from the metal plate of the straw-barbed roof or the folded-plate roof to the 2nd convex part, and is fixed to the said 1st convex part and the said 2nd convex part. A reinforcing member,
A fixing member to which a waterproof sheet covering the roof is fixed;
The reinforcing member includes an upper plate portion extending from a top portion of the first convex portion to a top portion of the second convex portion, and a first side plate portion and a second side plate portion respectively extending downward from both side edges of the upper plate portion. Each of the first side plate portion and the second side plate portion is fixed to the first convex portion and the second convex portion with screws,
The fixing member is disposed immediately above a concave portion between the first convex portion and the second convex portion, and is projected from above so as to protrude between the first convex portion and the second convex portion. It is a metal thatched roof refurbishment tool that is fixed to the reinforcing member by screws screwed into the reinforcing member .

  According to this configuration, since the wind load is distributed to the first and second convex portions as in the first aspect of the invention, the strength sufficient to withstand the wind load can be obtained. Moreover, the freedom degree of the arrangement position of a fixing member improves, and the workability | operativity at the time of repair work becomes favorable.

Moreover , since the side plate portion functions like a rib of the upper plate portion, the strength of the reinforcing member is improved.

Moreover , since the 1st side plate part and 2nd side plate part which were mutually separated are fixed to a 1st convex part and a 2nd convex part, a reinforcement member comes to be stabilized in a fixed state.

  According to the first invention, the reinforcing member is arranged from the first convex portion to the second convex portion of the metal plate and fixed to both convex portions, and the fixing member of the waterproof sheet is fixed to the reinforcing member. As a result, it is possible to provide strength sufficient to withstand wind loads, and to improve the flexibility of the arrangement position of the fixing member of the waterproof sheet to improve workability at the time of repair work.

  According to 2nd invention, it arrange | positions ranging from a 1st convex part to a 2nd convex part, The reinforcement member fixed to a 1st convex part and a 2nd convex part, The fixing member for fixing a waterproof sheet, Since the fixing member is fixed to the reinforcing member, it can be given sufficient strength to withstand wind loads, and it is improved by improving the flexibility of the location of the fixing member for the waterproof sheet. Workability at the time of work can be improved.

Further , since the reinforcing member includes an upper plate portion extending from the top portion of the first convex portion to the top portion of the second convex portion and a side plate portion extending downward from the side edge of the upper plate portion, the strength of the reinforcing member is improved. The strength against wind load can be further increased.

Moreover , since the 1st side plate part and 2nd side plate part which were mutually separated can be fixed to a 1st convex part and a 2nd convex part, a reinforcement member can be stabilized in a fixed state.

It is a perspective view which shows the structure of the folded-plate roof after repair. It is a perspective view which shows the structure of the folded-plate roof before repair. It is a perspective view of a reinforcing member. It is an end view of a reinforcing member. It is a side view of a reinforcing member. It is a perspective view which shows the state which fixed the reinforcement member to the folded-plate roof. It is the VII-VII sectional view taken on the line of FIG. It is a perspective view which shows the structure of the straw bar thatched roof before repair. It is a perspective view which shows the structure of the straw bar thatched roof after repair. It is a perspective view which shows one structural example of the round goby folded-plate roof after repair. It is a perspective view which shows the other structural example of the round goby folded-plate roof after repair.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that the following description of the preferred embodiment is merely illustrative in nature, and is not intended to limit the present invention, its application, or its use.

  FIG. 1 is a partial cross-sectional view of a folded plate roof that has been repaired by applying the repairing method and the repairing tool 1 according to the embodiment of the present invention. The folded plate roof is a metal thatched roof formed by fixing a metal plate 101 on a beam 100 made of H-shaped steel or the like (a folded plate roof before repair is shown in FIG. 2). The metal plate 101 is formed by bending so that peaks and valleys can be alternately formed. The peaks become convex portions 102 A, 102 B,..., And the valleys become concave portions 103. The top part 102a of the convex parts 102A, 102B,... Is a flat surface. Further, both side surfaces 102b, 102b of the convex portions 102A, 102B,... Are common with both side surfaces of the concave portion 103, and the slope is inclined so that the width of the convex portions 102A, 102B,. It is composed of planes. Furthermore, the bottom surface of the recess 103 is a flat surface. The distance between the top portion 102a of the adjacent convex portion (first convex portion) 102A and the top portion 102a of the convex portion (second convex portion) 102B is set wider than the width of the top portion 102a (the left-right direction in FIG. 2). .

  As shown in FIG. 1 and FIG. 7, the repair tool 1 includes a reinforcing member 2 and a fixing member 3. The reinforcing member 2 is arranged from the convex portion 102A to the convex portion 102B adjacent to the convex portion 102A, and is fixed to the convex portion 102A and the convex portion 102B. The reinforcing member 2 is formed by bending a metal plate as shown in FIGS. 3 to 6, and the thickness of the plate is set to be thicker than the thickness of the metal plate 101 of the folded plate roof. Yes. Therefore, the reinforcing member 2 has high strength as a whole.

  The reinforcing member 2 includes an upper plate portion 20 that extends from the convex portion 102 </ b> A to the convex portion 102 </ b> B, and a first side plate portion 21 and a second side plate portion 22 that extend downward from both side edges of the upper plate portion 20. As shown in FIG. 6, the upper plate portion 20 includes a contact portion 20a that comes into contact with the top portion 102a of the convex portion 102A from above and a contact portion 20b that comes into contact with the top portion 102a of the convex portion 102B from above. . These contact parts 20a and 20b extend along the top part 102a.

  The first side plate portion 21 is formed over the vicinity of both ends in the longitudinal direction of the upper plate portion 20. As shown in FIG. 6, the vertical dimension of the first side plate portion 21 is set to be separated upward from the bottom portion 103a of the recessed portion 103 of the folded plate roof in a state where the reinforcing member 2 is installed on the folded plate roof. Thus, the first side plate portion 21 does not interfere with the bottom portion 103 a of the recess 103.

  A first fixed plate portion 23 and a second fixed plate portion 24 are respectively provided at both ends of the first side plate portion 21 in the longitudinal direction. The first fixing plate portion 23 is fixed to the convex portion 102A by screws. The first fixed plate portion 23 is formed by bending the first side plate portion 21 so as to protrude to the side opposite to the second side plate portion 22 side and along the side surface 102b of the convex portion 102A. Is formed. As shown in FIGS. 3 and 4, the first fixing plate portion 23 is formed with a screw insertion hole 23 a through which the screw 29 is inserted.

  The second fixed plate portion 24 is fixed to the convex portion 102B by screws. The second fixed plate portion 24 is also formed by bending the first side plate portion 21 so as to protrude to the opposite side to the second side plate portion 22 side, and is formed along the side surface 102b of the convex portion 102B. ing. The second fixing plate portion 24 is also formed with a screw insertion hole 24a through which the screw 29 is inserted.

  The second side plate portion 22 is configured in the same manner as the first side plate portion 21, and extends substantially parallel to the first side plate portion 21. A first fixing plate portion 25 and a second fixing plate portion 26 are respectively provided at both ends in the longitudinal direction of the second side plate portion 22, and the first fixing plate portion 25 is fixed to the convex portion 102A by screws, 2 The fixed plate portion 26 is fixed to the convex portion 102B by screws. A screw insertion hole 25 a is formed in the first fixed plate portion 25, and a screw insertion hole 26 a is formed in the second fixed plate portion 26.

  The fixing member 3 shown in FIG. 7 has a metal plate formed in a circular shape in plan view, and is screwed to the reinforcing member 2. A screw insertion hole 3 a through which the screw 30 is inserted is formed at the center of the fixing member 3. A recess 31 that is recessed downward is formed around the screw insertion hole 3 a of the fixing member 3. On the peripheral edge of the fixing member 3, a ridge portion 32 that protrudes downward and extends in the circumferential direction is formed. A resin material layer 33 made of a resin material welded to the waterproof sheet is integrally provided on the upper surface of the fixing member 3.

  Next, a method for repairing the folded plate roof performed using the repair tool 1 configured as described above will be described. First, as shown in FIG. 6, the reinforcing member 2 is fixed to the metal plate 101 of the folded roof. That is, the reinforcing member 2 is moved from the upper side to the lower side of the metal plate 101, the abutting portion 20a of the reinforcing member 2 is brought into contact with the top portion 102a of the convex portion 102A, and the abutting portion 20b is made to be the top portion 102a of the convex portion 102B. Abut. In this state, the upper plate part 20 extends from the convex part 102A to the convex part 102B and is in a bridged state. Further, the first fixed plate portion 23 of the first side plate portion 21 extends along the side surface 102b of the convex portion 102A, and the second fixed plate portion 24 of the first side plate portion 21 extends along the side surface 102b of the convex portion 102B. The first fixed plate portion 25 of the second side plate portion 22 extends along the side surface 102b of the convex portion 102A, and the second fixed plate portion 26 of the second side plate portion 22 extends to the side surface 102b of the convex portion 102B. Extend along.

  Thereafter, the screw 29 is inserted into the screw insertion hole 23 a of the first fixing plate portion 23, and the screw 29 is screwed into the metal plate 101 to fix the first fixing plate portion 23. Similarly, the second fixed plate portion 24, the first fixed plate portion 25, and the second fixed plate portion 26 are fixed. Since the first fixed plate portion 23 and the first fixed plate portion 25 are separated from each other in the width direction of the reinforcing member 2 and the second fixed plate portion 24 and the second fixed plate portion 26 are also separated in the same manner, the reinforcing member 2 A plurality of locations separated in the width direction are fixed to the metal plate 101. Therefore, the reinforcing member 2 is stable.

  Next, as shown in FIG. 7, the heat insulating material 40 is placed on the metal plate 101, and the fixing member 3 is disposed on the upper surface of the heat insulating material 40 so as to correspond to the reinforcing member 2. At this time, since the reinforcing member 2 extends from the convex portion 102A to the convex portion 102B, if the fixing member 3 is disposed on the upper plate portion 20 of the reinforcing member 2, the convex portion 102A and the convex portion are arranged. It may be between the unit 102B and can be set arbitrarily, so that the workability at the time of repair work is improved.

  After determining the arrangement position of the fixing member 3, the screw 30 is inserted into the screw insertion hole 3 a of the fixing member 3 to penetrate the heat insulating material 40 and screwed to the upper plate portion 20 of the reinforcing member 2. As a result, the fixing member 3 is fixed to the reinforcing member 2, and the heat insulating material 40 is pressed and fixed to the reinforcing member 2 from above by the fixing member 3.

  Thereafter, the waterproof sheet 50 is laid on the entire folded plate roof so as to cover the heat insulating material 40. After the waterproof sheet 50 is laid, the waterproof sheet 50 is fixed to the fixing member 3 using a welder (not shown). That is, when the welder is disposed directly above the fixing member 3 from above the waterproof sheet 50, an electromagnetic induction action is caused by excitation of the induction coil provided in the welder, and the metal portion of the fixing member 3 generates heat. Due to the heat generated by the fixing member 3, the resin material layer 33 melts and adheres to the waterproof sheet 50, and when the resin material layer 33 is solidified, the waterproof sheet 50 is fixed to the fixing member 3.

  Instead of using a welder, the resin material layer 33 and the waterproof sheet 50 may be melted using a solvent to fix the waterproof sheet 50 to the fixing member 3.

  According to the repair method according to the present embodiment, the heat insulating material 40 can provide heat insulation to the folded plate roof, and the waterproof sheet 50 can provide water resistance.

  For example, a wind load acts on the reinforcing member 2 through the fixing member 3 in a strong wind. This wind load acts in a distributed manner from the reinforcing member 2 to the two convex portions 102A and the convex portions 102B. Therefore, the strength that can sufficiently withstand the wind load is obtained.

  As described above, according to this embodiment, the reinforcing member 2 is arranged from the convex portion 102A to the convex portion 102B of the metal plate 102 and fixed to the convex portions 102A and 102B, and the waterproof sheet 50 is fixed. Since the member 3 is fixed to the reinforcing member 2, it is possible to give the strength enough to withstand wind load, and to improve the degree of freedom of the arrangement position of the fixing member 3, and work at the time of repair work Can be improved.

  Moreover, since the 1st side board part 21 and the 2nd side board part 22 were provided in the upper board part 20 of the reinforcement member 2, the intensity | strength of the reinforcement member 2 can be improved and the waterproof sheet 50 can be fixed firmly.

  Moreover, since the 1st side board part 21 and the 2nd side board part 22 which were separated from each other were fixed to the convex part 102A and the convex part 102B, the reinforcing member 2 can be stabilized in a fixed state. Can be firmly fixed.

  In addition, the repair method and the repair tool 1 concerning this invention are applicable also when repairing the straw-barbed roof shown in FIG. 9 besides the folded-plate roof. When applied to a straw-bar-roofed roof, the shape of the reinforcing member 2 may be changed to correspond to the shape of the metal plate 201 of the straw-bar-roofed roof. As shown in FIG. 8, the roof with a straw bar is constructed by fixing a metal plate 201 on the beam 200. The metal plate 201 has convex portions 202A (first convex portions), 202B (second convex portions),... Corresponding to the arrangement positions of the straw bars. The side surface of the convex portion 202A extends substantially vertically. The distance between the convex portion 202A and the convex portion 202B is set wider than the width of the top portion 202a of the convex portion 202A.

  Therefore, as shown in FIG. 9, the reinforcing member 2 for the straw-bar-roofed roof is disposed from the convex portion 202A to the convex portion 202B, and is fixed to the convex portion 202A and the convex portion 202B. The first to fourth fixing plate portions of the reinforcing member 2 extend substantially vertically along the side surfaces of the convex portions 202A and 202B. Also in this case, the wind load can be distributed to the convex portions 202A and the convex portions 202B. Moreover, the freedom degree of the arrangement | positioning position of the fixing member 3 of the waterproof sheet 50 can be improved, and workability | operativity at the time of repair work can be made favorable.

  Moreover, as shown in FIG.10 and FIG.11, this invention can also be applied when repairing a round goby folded-plate roof. The round goby folded-plate roof is a kind of folded-plate roof, and two metal plates 101 are bent and joined together at a convex portion 102A. Therefore, the joint portion 104 that protrudes upward is formed on the convex portion 102A. In the structural example shown in FIG. 10, the heat insulating material 40 is placed on the upper end of the joint 104 of the round goby folded plate roof, and there is a space between the reinforcing member 2 and the heat insulating material 40. The heat insulating material 40 is fixed to the reinforcing member 2 using screws 30.

  Moreover, in the structural example shown in FIG. 11, the contact portions 20a and 20b of the reinforcing member 2 are in contact with the joint portions 104 and 104 of the round goby roof from above. And the heat insulating material 40 is mounted in the upper surface of the reinforcement member 2, and is fixed similarly to the case of the folded-plate roof shown in FIG.

  In the above embodiment, the reinforcing member 2 is screwed to the side surfaces 102b and 102b of the convex portions 102A and 202A and the convex portions 102B and 202B. However, the present invention is not limited to this, and for example, screws are fixed to the top portions 102a and 102a. You may make it do.

  Moreover, the screwing location of the reinforcing member 2 is not limited to four, and can be set to an arbitrary number.

  As described above, the method and tool for repairing a metal thatched roof according to the present invention can be applied to, for example, a straw-bar roof or a folded-plate roof.

DESCRIPTION OF SYMBOLS 1 Repair tool 2 Reinforcing member 3 Fixing member 20 Upper plate part 21 First side plate part 22 Second side plate part 23 First fixed plate part 24 Second fixed plate part 25 First fixed plate part 26 Second fixed plate part 40 50 waterproof sheet 101, 201 metal plate 102A, 202A first convex portion 102B, 202B second convex portion

Claims (2)

A reinforcing member is arranged from the first convex portion to the second convex portion formed on the metal plate of the straw bar-roofed roof or the folded-plate roof, and the second convex portion from the top of the first convex portion in the reinforcing member. Fixing each of the first side plate portion and the second side plate portion extending downward from both side edges of the upper plate portion extending to the top portion of the upper plate portion to the first convex portion and the second convex portion with screws, and fixing the waterproof sheet A fixing member for arranging the first convex portion and the second convex portion so as to protrude between the first convex portion and the second convex portion. after the step of fixing to the reinforcing member by screws screwed to the reinforcing member from above,
A method of repairing a metal thatched roof, wherein the roof is covered with the waterproof sheet and the waterproof sheet is fixed to the fixing member. A reinforcing member that is arranged from the first convex portion to the second convex portion formed of a metal plate of a straw-bar-roofed roof or a folded-plate roof, and is fixed to the first convex portion and the second convex portion;
A fixing member to which a waterproof sheet covering the roof is fixed;
The reinforcing member includes an upper plate portion extending from a top portion of the first convex portion to a top portion of the second convex portion, and a first side plate portion and a second side plate portion respectively extending downward from both side edges of the upper plate portion. Each of the first side plate portion and the second side plate portion is fixed to the first convex portion and the second convex portion with screws,
The fixing member is disposed immediately above a concave portion between the first convex portion and the second convex portion, and is projected from above so as to protrude between the first convex portion and the second convex portion. A metal-roofed roof refurbishment tool fixed to the reinforcing member by a screw screwed into the reinforcing member .

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