JP4705859B2 - Support structure for folded plate roof - Google Patents

Description

  The present invention relates to a structure for supporting and supporting a metal roof folded board on a roof base.

  As a roofing structure suitable for large space buildings such as factories and warehouses and small-scale buildings with a simple structure, metal roof folding plates (hereinafter simply referred to as “folded plates”) are joined together. The so-called boltless folded roof is widely used.

  As shown in FIG. 16, the folded plate roof has a substantially trapezoidal tight plate in which a folded plate 1 having a substantially valley-shaped cross section having a bottom surface portion 11 at the center in the width direction is fixed to a top surface of a purlin or the like at a predetermined interval. While placing along the mountain-and-valley shape of the frame 2, the side edges of the adjacent folded plates 1 are joined to each other via a suspension 3 fixed to the top of the tight frame 2. A lower gob 12 is formed on one side edge (rake side) of each folded plate 1, and an upper gob 13 is formed on the other side edge (cover side). Is formed with a locking portion 31 having a substantially bowl-shaped cross section. Then, the lower goby portion 12 of the folded plate 1 is inserted below the locking portion 31, and the upper goby portion 13 of the adjacent folded plate 1 is covered with the locking portion 31, and these are tightened with a seamer or the like. Thus, the goby joint 4 having a substantially triangular or substantially trapezoidal cross section is formed.

  The folded plate roof thus constructed tends to expand and contract when exposed to severe changes in the outside air temperature, solar radiation, wind and rain. When the stress and frictional force are accumulated, the folded plate 1 is deformed like a wave and generates an explosive sound called buckling. Further, when a load due to repeated expansion and contraction is received, there is a possibility that the fasteners 5 such as bolts and nuts fixing the suspension 3 are loosened or damaged, or in the worst case, the roof is scattered. Such a problem becomes more serious as the length of the folded plate 1 increases.

Then, the technique which absorbs the thermal expansion-contraction of a folded-plate roof is proposed by patent document 1, for example. As shown in FIGS. 17 and 18, the roof support structure has long holes 21a and 21b and bolts 50a and 50b inserted through the long holes in the upper part of the tight frame 2a or the roof support member 2b corresponding thereto. By attaching the sliding members 3a and 3b corresponding to the above-described suspension member 3 through the shaft member, and forming the seam joint 4 of the folded plate 1 on the heads of the sliding members 3a and 3b, the folded plate 1 Is to be absorbed by the sliding of the sliding members 3a and 3b.
JP 2000-110307 A

  However, in the conventional roof support structure, when the amount of thermal expansion and contraction of the folded plate 1 is large, it is necessary to lengthen the long holes 21a and 21b formed in the sliding members 3a and 3b. The longer the long holes 21a and 21b are, the more easily the peripheral portions thereof are deformed and the weaker the strength against negative pressure for lifting the folded plate roof. Then, even if the sliding members 3a and 3b are not detached from the tight frame 2a and the roof support member 2b, there is a possibility that the sliding members 3a and 3b may be deformed to such an extent that sufficient water-stopping and airtightness cannot be maintained.

  Of the conventional roof support structure described above, particularly in the structure as shown in FIG. 17, the bolts and nuts are fastened with the sliding member 3a placed on the flat portion 22 of the tight frame 2a. In such a fixing structure, the strength against the negative pressure on the roof depends solely on the bolt 50a. Therefore, in the unlikely event that the bolt 50a breaks or the fastening loosens and falls off, There is a possibility that the moving member 3a is easily detached from the tight frame 2a and the roof is scattered.

  Further, among the conventional roof support structures described above, in particular, the structure as shown in FIG. 18 requires a dedicated roof support member 2b processed according to the shape of the sliding member 3b. Since the tight frame 2 cannot be used, the cost increases.

  The present invention has been made in view of such circumstances, and can be attached to a conventional general tight frame, and can be used to stably hold a folded plate with sufficient strength even when the folded plate has a large thermal expansion and contraction. It is an object of the present invention to provide a support structure for a plate roof.

  In order to achieve the above-described object, the folded-plate roof support structure of the present invention has a suspension holder attached to a tight frame fixed on the roof construction surface, and the suspension element is attached to the suspension holder in the flow direction of the roof. In the folded-plate roof support structure in which the folded portion is formed on the engaging portion formed on the top portion of the hanging piece, the hanging piece holding tool is formed on the tight frame. A bottom plate portion that is applied to the flat portion from below and fixed to the flat portion, and a suspension presser portion that is raised from the bottom plate portion with the tight frame sandwiched in the flow direction. The suspension is formed in a groove shape that opens downward, and the suspension is formed in a groove shape in which the cross section of the lower portion opens upward, and the lower portion is suspended by the flat portion of the tight frame and the suspension holder. Inserted between the presser foot and the opening Characterized in that it is held in the stomach combined engagement.

  In the present invention, the “tight frame” is a roof support material that is fixed on the roof construction surface at an appropriate interval perpendicular to the flow direction of the roof, and a strip made of steel or the like has a substantially trapezoidal shape or other shape. This is a general term for members in which a flat portion having an appropriate width is formed at or near the top portion by bending it.

  According to this support structure, since the suspension retainer is fixed to the tight frame from the lower side of the tight frame, when a negative pressure is applied to the roof, the suspension retainer lifts the tight frame from below. Therefore, the load acting on the bolts, nuts and other fasteners for fixing the suspension holder to the tight frame is greatly reduced, and a stable fixed state is maintained. In addition, even if the above fastener is loosened or damaged, the suspension holder will not be detached from the tight frame due to the negative pressure acting on the roof, and the worst situation of roof scattering will be avoided. Can do.

  In addition, this support structure does not employ a sliding mechanism called a long hole and a shaft member inserted therethrough, and engages the retainer pressing portion that opens downward and the lower portion of the suspension that opens upward facing each other. By doing so, the hanger is slidably held, so that a high holding strength is exhibited particularly for negative pressure. Even when the sliding stroke of the hanging member is extended, it is only necessary to lengthen the hanging member, and the strength is not reduced.

  In addition, since this support structure is for attaching a suspension holder from the lower side of the tight frame, various forms including a conventional general tight frame can be used as long as an appropriate flat portion is provided on the tight frame. The roof support material can be used effectively. Therefore, it contributes to reduction of material management cost and construction cost. Of course, a dedicated tight frame can be used.

  As a further configuration of the present invention, in the support structure described above, a liner material made of a highly-lubricating resin material is interposed between the hanger retainer part of the hanger holder and the flat part of the tight frame and the lower part of the hanger. It is characterized by being disguised. Here, examples of the “highly lubricious resin material” include polyolefin, polyacetal, fluororesin, polyamide, polyester, ABS resin, polycarbonate, phenol resin, and the like. By interposing the liner material made of these resin materials between the suspension presser and the tight frame and the suspension, the suspension can be smoothly slid by following the expansion and contraction of the folded plate.

  The liner material can be divided into two parts in the flow direction, and can be configured to be inserted into the suspension holder from the water side and the water side of the suspension holder, respectively. In addition, the bottom plate part of the hanging element holder applied to the flat part of the tight frame from below and the liner holder applied to the flat part from above are fixed with the tight frame sandwiched vertically. A hanging member may be inserted through a liner material between the hanging member pressing portion of the child holding member and the liner receiving member. With these configurations, workability can be improved.

  According to the support structure of the folded plate roof of the present invention configured as described above, even when the thermal expansion and contraction of the folded plate is large, it is possible to hold the suspension and the suspension holder firmly and stably over a long period of time. It is possible to reduce the load on the fastener against negative pressure on the roof. In addition, since a tight frame with a special shape is not required, the construction cost can be reduced.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 to 7 show a first embodiment of the present invention. FIG. 1 is a perspective view of main constituent members, FIGS. 2 to 5 are perspective views showing their assembly procedures, and FIGS. 6 to 7 are sectional views after construction. The exemplary support structure is constituted by the tight frame 20, the suspension holder 60a, the liner material 70a, the suspension 30, the folded plate 1, and the like.

  The tight frame 20 includes a flat portion 22 at a position one step lower than the top portion. Two bolt insertion holes 23 are formed in the flat portion 22 at an appropriate interval in the plate width direction of the tight frame 20, that is, the flow direction of the roof.

  The suspension retainer 60a is a member made of steel or other metal material, and includes a bottom plate portion 61 having an appropriate length (about 3 to 4 times the plate width of the tight frame 20) in the flow direction, and one of the bottom plate portions 61. And a reinforcing rib 63a raised from the other side edge of the bottom plate portion 61. The suspension presser portions 62 are provided in a pair of front and rear portions that are separated from each other by the plate width of the tight frame 20 in the flow direction, and are formed in a groove shape that is opened downward and includes standing pieces 64, horizontal pieces 65, and hanging pieces 66. It has a cross-sectional shape. As shown in FIG. 2 to FIG. 3, the suspension holder 60 a is applied from the lower side of the tight frame 20 with the flat portion 22 of the tight frame 20 sandwiched between the front and rear suspension retainers 62. The part 61 is overlaid on the lower side of the flat part 22. Near the center of the bottom plate portion 61, two bolt insertion holes 67 that coincide with the bolt insertion holes 23 formed in the tight frame 20 are formed, but at this stage, the suspension holder 60a is not yet fixed. .

  The liner material 70a is a member made of a highly-lubricating resin material, and is divided into two in the flow direction so as to form a symmetrical shape with the tight frame 20 in between. Each liner material 70a includes a hanger guide portion 71 formed so as to be inscribed in a hanger presser portion 62 of the hanger retainer 60a, and a tight frame presser piece 72 protruding from one end of the hanger guide portion 71. It has. A substantially U-shaped guide groove 73 for inserting a lower part of the hanging element 30 described later is formed in the hanging element guide portion 71. The tight frame pressing piece 72 protrudes at a position overlapping the upper surface of the flat portion 22 of the tight frame 20 when the hanging piece guide portion 71 is inserted into the hanging piece holding portion 62. Each tight frame holding piece 72 has one hexagonal hole 74 formed therein.

  As shown in FIG. 3 to FIG. 4, in a state in which the suspension retainer 60 a is applied to the lower side of the tight frame 20, each liner from the both sides in the flow direction (the water side and the water upper side) of the suspension retainer 60 a. When the material 70 a is inserted into the retainer presser part 62, the tight frame presser piece 72 overlaps the upper side of the flat part 22, and the flat part 22 is temporarily sandwiched between the tight frame presser piece 72 and the bottom plate part 61. Stopped. Here, when the hexagonal bolt 51 is inserted into the hexagonal hole 74 and the bolt insertion holes 23 and 67 of the tight frame holding piece 72 from above, and the washer 52 and the nut 53 are attached from below and fastened, the suspension is held on the tight frame 20. The tool 60a and the liner material 70a are fixed. The tight frame pressing piece 72 of the liner material 70a is formed so that the thickness thereof is larger than the thickness of the head of the hexagon bolt 51, whereby the bottom surface of the guide groove 73 becomes flat.

  The hanging member 30 is a member formed by bending a metal plate material, and a locking portion 31 for forming a roof fastening portion of the roof material is provided at the top of the upright portion. At the lower part of the upright part, a horizontal bottom part 32 and an upright part 33 are formed so as to form a groove-shaped cross section that opens upward. At both ends in the flow direction of the horizontal bottom portion 32, retaining protrusions 34 are provided, and one of them is bent downward in advance. As shown in FIGS. 4 to 7, the lower part of the hanging element 30 is inserted into the guide groove 73 of the liner material 70 a along the flow direction, and the other retaining protrusion 34 faces downward after the insertion. It will be bent. With such a structure, the suspension 30 is held on the tight frame 20 so as to be slidable in the flow direction via the liner material 70a made of a highly-lubricating resin material. Since the lower part of the hanging element 30 is pressed from above in an engaged state in which the opening of the hanging element holder 60 a and the opening part 62 are opposed to each other, a high strength is exhibited even against negative pressure. Further, the upward reinforcing ribs 63a formed on the suspension retainer 60a increase the bending rigidity of the suspension retainer 60a, and also support the side portions of the liner material 70a, thereby contributing to an improvement in lateral strength.

  8 to 15 show a second embodiment of the present invention. FIG. 8 is a perspective view of main constituent members, FIGS. 9 to 13 are perspective views showing their assembling procedures, and FIGS. 14 to 15 are sectional views after construction. The exemplary support structure includes the tight frame 20, the suspension holder 60 b, the liner receiver 80, the liner material 70 b, the suspension 30, the folded plate 1, and the like.

  The configurations of the tight frame 20 and the hanging member 30 are the same as those in the first embodiment.

  The hanging device holder 60b is similar to the hanging device holding device 60a according to the first embodiment, and includes a bottom plate portion 61 having an appropriate length in the flow direction, and a tight edge of the tight frame 20 from one side edge of the bottom plate portion 61. In this embodiment, the reinforcing rib 63b is bent downward from the other side edge of the bottom plate portion 61. . It is the first embodiment that two bolt insertion holes 67 are formed in the bottom plate portion 61, and that the retainer presser portion 62 has a groove-like cross-sectional shape composed of a standing piece 64, a horizontal piece 65, and a hanging piece 66. Similar to the example. As shown in FIGS. 9 to 10, the suspension holder 60 b is also applied from the lower side of the tight frame 20 so as to sandwich the flat portion 22 of the tight frame 20 between the front and rear suspension retainers 62. The part 61 is overlaid on the lower side of the flat part 22.

  The liner receiver 80 is a member made of a metal plate having substantially the same length as that of the suspension holder 60b, and includes an upright portion 81 and a horizontal portion 82. A tight frame is provided near the center of the horizontal portion 82. Two bolt insertion holes 83 that coincide with the bolt insertion holes 23 formed in 20 are formed. On the lower side of the horizontal portion 82, a leg piece 84 that is partially cut back and folded downward, and a leg piece 85 that extends downward from the edge of the horizontal portion 82, respectively, is at least the tight frame 20 in the flow direction. A pair of front and rear projections are provided apart by the width of the plate. The height of these leg pieces 84 and 85 is equal to the thickness of the flat portion 22 of the tight frame 20. As shown in FIGS. 10 to 11, the liner receiver 80 is formed on the flat portion 22 of the tight frame 20 and the bottom plate portion 61 of the suspension holder 60 b so that the leg pieces 84 and 85 straddle the tight frame 20. Overlaid.

  In this embodiment, the liner material 70b is formed as a single member having a length approximately the same as that of the suspension retainer 60b. The liner material 70b communicates a pair of front and rear suspension guide portions 71 inscribed in a space surrounded by the suspension retainer 62 and the liner receiver 80 of the suspension retainer 60b, and the front and rear suspension guide portions 71. And a flat fixing portion 75. A substantially U-shaped guide groove 73 for inserting the lower part of the hanging element 30 is formed in the hanging element guide portion 71. Further, the fixing portion is formed to have a thickness larger than the thickness of the head of the hexagon bolt 51, and two hexagon holes 74 are formed near the center.

  As shown in FIGS. 11 to 12, the suspension holder 60 b is applied to the lower side of the tight frame 20 and the liner holder 80 is placed on the tight frame 20. When the liner material 70b is inserted into the suspension retainer 62 from one side (underwater or above water), the suspension holder 60b, the liner receiver 80, and the liner material 70b become the flat portion 22 of the tight frame 20. It is temporarily fixed in the state where it is inserted. Here, the hexagon bolts 51 are inserted from above into the hexagon holes 74 of the liner material 70b and the bolt insertion holes 83, 23, 67 of the liner receiver 80, the tight frame 20, and the suspension holder 60b, and the washer 52 from below. When the nut 53 is attached and fastened, the suspension holder 60b, the liner receiver 80, and the liner material 70b are fixed to the tight frame 20.

  As shown in FIGS. 12 to 15, the lower part of the hanging element 30 is inserted into the guide groove 73 of the liner material 70 b along the flow direction, and after the insertion, the other retaining protrusion 34 faces downward. It will be bent. With such a structure, the hanging element 30 is held on the tight frame 20 and the liner receiver 80 so as to be slidable in the flow direction via the liner material 70b made of a highly lubricating resin material. Similarly to the first embodiment, the lower part of the hanging element 30 is pressed from above with the hanging element holding portion 62 of the hanging element holding tool 60b and the respective openings facing each other. Even high strength is exhibited. In this embodiment, the downward reinforcing ribs 63 formed on the suspension retainer 60b increase the bending rigidity of the suspension retainer 60b, while the upright portion 81 of the liner receiver 80 supports the side portion of the liner material 70b. Contributes to the improvement of lateral strength. Furthermore, in this embodiment, by forming a flat surface on the tight frame 20 by the liner receiver 80 placed on the tight frame 20, the height dimension of the liner material 70b is reduced, and the high lubricity resin material is made. The amount used can be saved.

It is a perspective view of the main component members concerning a 1st embodiment of the present invention. It is a perspective view which shows the assembly procedure of the said embodiment. Similarly, it is a perspective view which shows the assembly procedure following FIG. Similarly, it is a perspective view which shows the assembly procedure following FIG. Similarly, it is a perspective view which shows the assembly procedure following FIG. It is sectional drawing of the direction orthogonal to the flow direction which shows the state after construction of the said embodiment. It is sectional drawing of the flow direction which shows the state after construction of the said embodiment. It is a perspective view of the main component members concerning a 2nd embodiment of the present invention. It is a perspective view which shows the assembly procedure of the said embodiment. Similarly, it is a perspective view which shows the assembly procedure following FIG. Similarly, it is a perspective view which shows the assembly procedure following FIG. Similarly, it is a perspective view which shows the assembly procedure following FIG. Similarly, it is a perspective view which shows the assembly procedure following FIG. It is sectional drawing of the direction orthogonal to the flow direction which shows the state after construction of the said embodiment. It is sectional drawing of the flow direction which shows the state after construction of the said embodiment. It is sectional drawing which shows the support structure of the conventional common folded-plate roof. It is a perspective view which shows the structure which absorbs the thermal expansion and contraction of the folded-plate roof described in patent document 1. FIG. Similarly, it is a perspective view which shows the other structure which absorbs the thermal expansion and contraction of the folded-plate roof described in patent document 1. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Folding plate 20 Tight frame 22 Flat part 30 Hanging element 31 Locking part 60a Hanging element holder 60b This hanging element holder 61 Bottom plate part 62 Hanging element presser part 70a Liner material 70b Liner material 80 Liner holder

Claims (4)

A suspension retainer is attached to a tight frame fixed on the roof construction surface, and the suspension retainer is slidably held along the flow direction of the roof, and is formed on the top of the suspension. In the support structure of the folded-plate roof that forms the seam joint of the folded plate in the part,
The hanging device holder is applied to the flat portion formed on the tight frame from below and fixed to the flat portion, and the suspension is raised from the bottom plate portion with the tight frame sandwiched in the flow direction. And a child presser part, and the cross section of the handle presser part is formed in a groove shape that opens downward,
The hanging part is formed in a groove shape in which a cross section of the lower part is opened upward, and the lower part is inserted between the flat part of the tight frame and the hanging part of the hanging part holder, The support structure of the folded-plate roof characterized by being hold | maintained in the engagement state which faced the opening of each part and each other.   In the support structure of the folded-plate roof of Claim 1, the liner material which consists of a highly-lubricating resin material is provided between the hanger holding part of a hanger holder, the flat part of a tight frame, and the lower part of a hanger. A folded roof support structure characterized by being interposed.   The support structure of the folded-plate roof of Claim 2 WHEREIN: A liner material is divided into 2 to a flow direction, and it is inserted in a suspension retainer from the water side and the water upper side of a suspension retainer, respectively. Characteristic support structure for folded plate roof.   The support structure of the folded-plate roof of Claim 2 WHEREIN: The bottom plate part of the suspension holder applied from the lower side to the flat part of the tight frame, and the liner receiver applied from the upper side to the flat part Is supported with a tight frame sandwiched between top and bottom, and a suspension is inserted between the suspension retainer holding portion of the suspension retainer and the liner receiver via a liner material. Construction.

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