JP2014152548A - Waterproof support structure and support anchor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a waterproof support structure without reducing existing waterproof performance, besides being resistible to bidirectional force of pushing-in directional force and extracting directional force.SOLUTION: The waterproof support structure is provided when installing a photovoltaic power generation device 6 on a roof 1 whose upper surface is covered with a waterproof sheet 11, and also comprises a base plate 21 installed above the waterproof sheet, a bolt material 22 joined to an upper surface of the base plate, a first machine screw 31 driven in up to a structure plate 12 so that an upper end surface is arranged on the under surface side of the base plate, a second machine screw 32 driven in up to the structure plate so that a head part is hitched on the upper surface side of the base plate and a reinforcement sheet 5 for covering the upper surface side of the base plate and whose edge part is superposed on the waterproof sheet.

Description

  The present invention provides a waterproof support structure used when a solar power generation device or a handrail is installed on a structure such as a roof or a balcony whose upper surface is covered with a waterproof treatment layer such as a waterproof sheet, and is used for the waterproof support structure. The present invention relates to a support anchor.

  A fixture and a support structure for installing a solar power generation device on a roof on which a waterproof sheet is laid are known (see Patent Documents 1-4). Here, since the waterproof sheet is laid before installing the solar power generation device or the like, when attaching a fixture or the like, it is necessary to treat the waterproof performance so as not to deteriorate (see Patent Document 1).

  The other fixtures of Patent Documents 2 and 3 are provided with through holes for allowing screws to pass through a rigid synthetic resin fixing body installed on a waterproof sheet. From this through hole, a nail or the like is driven so as to pierce the waterproof sheet, but since it can be closed with a cap, it is possible to prevent rainwater from entering.

  In this other article fixture, the load received from the photovoltaic power generation apparatus is transmitted directly to the waterproof sheet from the bottom surface of the fixed body. Therefore, a flexible hook-shaped portion is provided on the periphery of the fixed body so as to be stacked on the waterproof sheet, and the deterioration of the durability is prevented by elastically suppressing the deformation of the waterproof sheet.

  On the other hand, Patent Document 4 discloses a support structure that allows a leg of a heavy load to be placed even when a soft heat insulating material is laid under a waterproof sheet. In this support structure, a plurality of screws are driven up to the roof base material under the heat insulating material, a plate material is placed on the head of the screw, and the plate material and the surrounding waterproof sheet upper surface are covered with a patch sheet.

  With such a configuration, even if the legs of the load are placed on the plate material from above the patch sheet, the load will be transmitted to the roof base material through the heat insulating material, so the waterproof sheet will sink. Can be prevented.

Utility Model Registration No. 3163758 Japanese Patent Laid-Open No. 2005-220658 JP 2012-57374 A JP 2011-231597 A

  However, in the waterproof structure or other fixtures disclosed in Patent Documents 1-3, if the flexible waterproof sheet itself is thick or a heat-insulating material that is easily deformed is laid under the waterproof sheet, Due to the weight of the load transmitted through the fixture or the like, a dimple is formed on the surface of the waterproof sheet. Such a dent on the surface of the waterproof sheet causes problems such as damage to the waterproof sheet and water pooling.

  On the other hand, in the support structure of Patent Document 4, the waterproof sheet does not sink, but it is necessary to moor it separately with a wire so that the load does not move or fall due to wind or earthquake.

  Therefore, the present invention provides a waterproof support structure and a support anchor that can resist the force in both directions of the force in the pushing direction and the force in the pulling direction and that does not deteriorate the existing waterproof performance. It is an object.

  In order to achieve the object, the waterproof support structure of the present invention is a waterproof support structure provided when a supported object is installed on a structure whose upper surface is covered with a waterproof process layer, and the waterproof process layer A base plate installed above the base plate, a connecting material joined to the upper surface of the base plate for connecting the supported object, and the structure such that an upper end surface is disposed on the lower surface side of the base plate. A push-side support member that is driven up to the main body of the base plate, a pull-out side support member that is driven into the main body of the structure so that the head is hooked on the upper surface side of the base plate, and an edge portion that covers the upper surface side of the base plate and And a water-impervious sheet material stacked on the waterproof treatment layer. Here, the base plate is preferably configured to be covered with a synthetic resin material.

  In addition, a seat plate interposed between the base plate and the waterproof layer is provided, and a hole through which the push-side support member and the pull-out support member are inserted is formed in the seat plate. be able to. Furthermore, the structure which the through-hole utilized for positioning is perforated in the approximate center of the said seat plate may be sufficient.

  Further, a soft layer may be interposed between the main body of the structure and the waterproofing layer, and the distal ends of the pushing side support material and the extraction side support material may be embedded in the main body. .

  Furthermore, the support anchor of the present invention includes a disc-shaped base plate, a bolt material whose lower end surface is joined to the center of the upper surface of the base plate, and a push-side support material disposed on the lower surface side of the base plate. And a drawing-side support member that is inserted into the hole of the base plate and has a shape in which the head is hooked on the upper surface side.

  Here, a seat plate having a through hole in the center interposed under the base plate is provided, and the push-side support member is inserted into the seat plate at a position symmetrical to the through hole. The first hole and the second hole to be a pair through which the drawing-side support material is inserted are respectively drilled, and the first hole and the second hole are alternately arranged around the through hole. Can do.

  The waterproof support structure of the present invention configured as described above includes a pushing-side support material on the lower surface side of the base plate and a pull-out side support material on which the head is caught on the upper surface side of the base plate. And the upper surface side and circumference | surroundings of a base board are covered with the water-impervious sheet material.

  For this reason, it can be made to resist with respect to the force in both directions of the force in the pushing direction and the force in the pulling direction. Further, since the surface and the periphery of the base plate are covered with the water-impervious sheet material, the waterproof performance of the existing waterproof treatment layer is not deteriorated. Moreover, corrosion of the base plate can be prevented by covering the base plate with the synthetic resin material.

  Further, if the seat plate interposed between the base plate and the waterproof layer is provided with holes for inserting the pushing side support material and the drawing side support material, the pushing side support material and the drawing side support are set at a set interval. You can drive in the material. Further, if the through hole used for positioning is drilled in the seat plate, the supported object can be installed at an accurate position.

  Even if a soft layer such as a heat insulating material is interposed between the main body of the structure and the waterproofing layer, the surface of the waterproofing layer is submerged if the tip of the pushing-side support material is embedded in the main body. There is nothing.

It is explanatory drawing which showed the state which supported the solar power generation device with the waterproof support structure of embodiment of this invention. It is explanatory drawing which showed the structure of the support anchor of embodiment of this invention. It is a figure explaining the metal fitting which comprises a support anchor, Comprising: (a) is a top view, (b) is a side view. It is a figure explaining the structure of a seat board, Comprising: (a) is a top view, (b) is explanatory drawing which expanded and showed the periphery of the hole. It is the perspective view which showed the installation state of the waterproof support structure. It is explanatory drawing which showed the state which supported the handrail with the waterproof support structure.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The waterproof support structure of the present embodiment is provided when an object to be supported is installed on a structure whose upper surface is covered with a waterproof treatment layer.

  First, the case where the upper surface is applied to the roof 1 as a structure covered with a waterproof sheet 11 as a waterproof treatment layer will be described. Here, the object to be supported is the solar power generation device 6.

  The roof 1 includes a structural plate 12 spanned on the ceiling beams 14 and 14 and the steel beam 15 as a main body. The structural plate 12 is formed of a lightweight cellular concrete plate made of, for example, a reinforcing bar 12a and a lightweight concrete 12b.

  On the structural plate 12, a heat insulating material or the like is spread to form a heat insulating layer 13. Since the heat insulating material is a material that is more easily deformed than the structural plate 12, the heat insulating layer 13 can be said to be a soft layer. A waterproof sheet 11 is laid on the surface of the heat insulating layer 13.

  On the other hand, the solar panel 61 of the solar power generation device 6 is installed on the gantry 62 via the front legs 61a and the rear legs 61b. Here, the rear leg 61b is longer than the front leg 61a, and the solar panel 61 is installed obliquely.

  And the girder material 62a which supports the mount frame 62 is connected to the support anchor 20 which comprises the waterproof support structure of this Embodiment. FIG. 2 is a cross-sectional view showing the configuration of the support anchor 20.

  The support anchor 20 includes a connection fitting 2 having a base plate 21 and a bolt material 22 as a connection material, a first screw 31 as a pushing-side support material, a second screw 32 as a drawing-side support material, and a base It is mainly comprised by the seat plate 4 arrange | positioned under the board 21. FIG. And the structure which covered this support anchor 20 with the reinforcement sheet | seat 5 as a water-impervious sheet material turns into a waterproof support structure.

  As shown in FIG. 3, the connection fitting 2 can be manufactured by joining the lower end surface of the bolt material 22 to the approximate center of the upper surface of a base plate 21 made of a steel plate formed into a disk shape by welding. .

  The bolt material 22 can have an arbitrary diameter and length in consideration of the magnitude of the load to be supported and the ease of mounting work. A pair of screw holes 21 a and 21 a are drilled in the base plate 21 at positions that are point-symmetric with respect to the bolt material 22.

  The screw hole 21a is a hole through which the second screw 32 is inserted. That is, the second screw 32 is inserted into the screw hole 21a as shown in FIG. 2, and the head 32a of the second screw 32 is hooked on the flange 21b shown in FIG. With this configuration, the second screw 32 can prevent the base plate 21 from moving upward.

  The base plate 21 of the connection fitting 2 is covered with a covering layer 23 as shown by a two-dot chain line in FIG. The covering layer 23 is formed by attaching a synthetic resin material such as vinyl chloride to the entire surface of the base plate 21 with a predetermined thickness.

  As shown in FIGS. 2 and 4, the seat plate 4 disposed on the lower surface side of the base plate 21 is formed into a disk shape having substantially the same diameter as the base plate 21 by a steel plate. A through hole 43 used for positioning is drilled in the approximate center of the seat plate 4. Through the through hole 43, a mark marked for positioning on the waterproof sheet 11 can be confirmed.

  A pair of first holes 41 and 41 and a pair of second holes 42 and 42 are formed in the seat plate 4 at positions that are point-symmetric with respect to the through hole 43. Here, the first hole 41 is a hole through which the first screw 31 is inserted.

  As shown in FIG. 4B, the first screw 31 is inserted into the first hole 41, and the head portion 31a of the first screw 31 is hooked on the flange portion 41a. Moreover, the 2nd holes 42 and 42 are provided on the line which passes along the through-hole 43 substantially orthogonal to the line | wire which connects the 1st holes 41 and 41 (refer Fig.4 (a)).

  That is, the line connecting the first holes 41 and 41 and the line connecting the second holes 42 and 42 are orthogonal to each other, and the center of the through hole 43 is the intersection. The first holes 41 and the second holes 42 are alternately arranged around the through hole 43 (circumferential direction).

  Furthermore, the second holes 42 and 42 are provided at positions projected onto the screw holes 21 a and 21 a when the base plate 21 is stacked on the seat plate 4. In short, the second screw 32 is driven into the roof 1 through the second hole 42 after passing through the screw hole 21a.

  Here, as shown in FIG. 2, the periphery of the seat plate 4 is formed in a shape that is bent downward as compared to the center. By setting it as such a shape, the periphery of the seat board 4 can be stuck to the upper surface of the waterproof sheet 11.

  The first screw 31 driven into the roof 1 through the first hole 41 of the seat plate 4 is formed in such a length that the tip is embedded in the structure plate 12 as shown in FIG. That is, the length of the first screw 31 is set to be equal to or greater than the thickness of the heat insulating layer 13 plus the length embedded in the structural plate 12 that can sufficiently secure the necessary supporting force.

  Further, as shown in FIGS. 2 and 4B, the upper end surface of the head 31a of the first screw 31 is formed into a flat surface so that the lower surface of the base plate 21 can be stably placed. For example, as shown in FIG. 4B, the upper end surface of the first screw 31 and the upper surface of the seat plate 4 are adjusted to be flat (substantially flush).

  On the other hand, a second screw 32 having a length substantially the same as that of the first screw 31 can be used. Further, the upper end surface of the head 32a of the second screw 32 is formed into a flat surface so as to be flat (substantially flush) with the upper surface of the base plate 21.

  The upper end surfaces of the base plate 21 and the second screw 32 are covered with the reinforcing sheet 5 as shown in FIGS. The reinforcing sheet 5 can be formed into a circular shape by a water-proof sheet material of the same quality as the waterproof sheet 11. Further, a hole 51 for inserting the bolt material 22 is drilled in the center of the reinforcing sheet 5.

  The diameter of the reinforcing sheet 5 is, for example, about twice the diameter of the base plate 21. As shown in FIGS. 2 and 5, the annular edge of the reinforcing sheet 5 protruding from the outer edge of the base plate 21 is overlaid on the waterproof sheet 11. Then, the upper surface of the waterproof sheet 11 and the lower surface of the reinforcing sheet 5 are joined by heat fusion, solvent welding, adhesive, or the like.

  Next, a method for installing the solar power generation device 6 using the waterproof support structure of the present embodiment will be described.

  First, ink marking is performed at a position where the support anchor 20 is installed on the upper surface of the roof 1 on which the waterproof sheet 11 is laid. In this positioning by marking, vertical lines and horizontal lines that are orthogonal to each other are attached to the waterproof sheet 11.

  Therefore, the seat plate 4 is installed so that the intersection of the vertical line and the horizontal line coincides with the center of the through hole 43. Then, the first screws 31 and 31 are screwed into the first holes 41 and 41 of the seat plate 4.

  The first screws 31, 31 penetrate through the waterproof sheet 11, pass through the heat insulating layer 13, and the tip is driven into the structure plate 12. This driving is performed until the upper end surface of the first screw 31 becomes substantially flat with the upper surface of the seat plate 4 as shown in FIG.

  Subsequently, the connection fitting 2 is placed on the seat plate 4. Then, alignment is performed so that the positions of the screw holes 21a, 21a of the base plate 21 and the positions of the second holes 42, 42 of the seat plate 4 overlap each other.

  Further, the second screws 32 and 32 are screwed into the screw holes 21 a and 21 a of the base plate 21. The second screws 32 and 32 pass through the waterproof sheet 11 through the second holes 42 and 42 of the seat plate 4, and then are driven into the structural plate 12 through the heat insulating layer 13. This driving is performed until the upper end surface of the second screw 32 becomes substantially flat with the upper surface of the base plate 21 as shown in FIG.

  Subsequently, the reinforcing sheet 5 is put on the base plate 21 through the bolt material 22 in the hole 51 of the reinforcing sheet 5. The reinforcing sheet 5 and the upper surface of the covering layer 23 of the base plate 21 are joined by heat fusion. Moreover, the location where the edge of the reinforcing sheet 5 is overlapped on the waterproof sheet 11 is also joined by thermal fusion.

  Then, as shown in FIG. 1, the first nut 22a is attached to a predetermined position of the bolt material 22 of the support anchor 20, and the girder material 62a is lowered from above, and bolts are inserted into holes (not shown) in the girder material 62a. The material 22 is passed. Further, a second nut 22b is mounted on the bolt member 22 from above, and the second nut 22b is tightened with a predetermined torque.

  In this way, the gantry 62, the solar panel 61, and the like are sequentially installed on the beam member 62a fixed to the roof 1. Although not shown in FIG. 1, a plurality of support anchors 20 and girders 62 a are installed at intervals in the axial direction of the gantry 62.

  Although the case where the solar power generation device 6 is a supported object has been described above, a case where the handrail 8 as the supported object is installed on the balcony 7 as the structure will be described below with reference to FIG. To do.

  This balcony 7 has as its main body a structural plate 72 formed of a lightweight cellular concrete plate or the like. On the structural plate 72, a gradient layer 73 formed so that the upper surface becomes an inclined surface (water gradient) is laminated.

  Since the gradient layer 73 is formed of urethane foam or the like so as to be easily processed, it is more easily deformed than the structural plate 72. For this reason, the gradient layer 73 can be said to be a soft layer. A waterproof sheet 71 is laid on the surface of the gradient layer 73.

  Thus, the support anchor 20 is installed on the upper surface of the balcony 7 covered with the waterproof sheet 71. About the structure and installation method of the support anchor 20, since it is the same as that of the case of the roof 1 mentioned above, detailed description is abbreviate | omitted.

  And the floor frame 81 is attached with respect to the bolt material 22 with which the 1st nut 22a was mounted | worn. After connecting to the floor frame 81, the second nut 22b is attached to the bolt member 22 and fastened.

  The frame body 82 and the decorative panel 83 on the floor frame 81 may be attached in advance, or may be sequentially installed after the floor frame 81 is fixed to the balcony 7 by the support anchor 20.

  Next, the operation of the waterproof support structure and the support anchor 20 of the present embodiment will be described.

  The waterproof support structure of the present embodiment configured as described above includes the first screw 31 on the lower surface side of the base plate 21 and the second screw 32 on which the head portion 32a is hooked on the upper surface side of the base plate 21. Yes. The upper surface side and the periphery of the base plate 21 are covered with the reinforcing sheet 5.

  For this reason, it can be made to resist with respect to the force in both directions of the force in the pushing direction and the force in the pulling direction. That is, the weight (downward force) of the solar power generation device 6 and the handrail 8 is transmitted to the heads 31 a and 31 a of the first screws 31 and 31 through the bolt material 22 and the base plate 21. Since the front ends of the first screws 31, 31 are embedded in the structural plate 12 (72), the base plate 21 does not drop and the surface of the waterproof sheet 11 does not sink.

  On the other hand, when the solar power generation device 6 or the handrail 8 receives a horizontal force or shakes due to a wind or an earthquake, an upward force is applied to the bolt material 22.

  The upward force acting on the bolt member 22 is also transmitted to the base plate 21, but when the base plate 21 is lifted, the heads 32a and 32a of the second screws 32 and 32 are caught. Movement will be blocked.

  Thus, in the case of the support anchor 20 of the present embodiment, the first screws 31, 31 driven below the base plate 21 and the second screws 32, 32 with the heads 32a, 32a hooked on the upper surface side, Thus, it is possible to resist against forces in both the upper and lower directions.

  Moreover, since the upper surface side and circumference | surroundings of the base board 21 are covered with the reinforcement sheet 5, the waterproof performance which the existing waterproof sheet 11 had is not reduced. Furthermore, by providing the covering layer 23 that covers the base plate 21 with a synthetic resin material, corrosion of the base plate 21 can be prevented.

  In addition, if holes (41, 42) through which the first screws 31 and the second screws 32 are inserted are formed in the seat plate 4 interposed between the base plate 21 and the waterproof sheet 11, the first interval 31 is set at a set interval. One screw 31 and second screw 32 can be driven.

  For example, if the first screws 31, 31 and the second screws 32, 32 are driven so as to be symmetrical, the reaction force acting positions received by the base plate 21 are also distributed in a balanced manner, and concentrated stress is generated. Can be suppressed.

  Moreover, if the through-hole 43 utilized for positioning is drilled in the seat board 4, the solar power generation device 6 and the handrail 8 can be installed in an exact position.

  Furthermore, even if a soft layer (13, 73) such as a heat insulating material is interposed between the structural plates 12, 72 and the waterproof sheets 11, 71, the first screw 31 that can resist the force in the pushing direction. , 31 is embedded in the structural plates 12, 72, the surface of the waterproof sheets 11, 71 is not submerged.

  The embodiment of the present invention has been described in detail above with reference to the drawings. However, the specific configuration is not limited to this embodiment, and design changes that do not depart from the gist of the present invention are not limited to this embodiment. Included in the invention.

  For example, in the above-described embodiment, the structure whose upper surface is covered with the waterproof sheets 11 and 71 has been described. However, the structure is not limited to this, and a waterproof coating film or asphalt roofing coated with a waterproof paint is waterproof. It may be a treatment layer.

  Moreover, although the said embodiment demonstrated the case where the heat insulation layer 13, the gradient layer 73, etc. were interposed between the structural boards 12 and 72 and the waterproof sheets 11 and 71, it is not limited to this, Even when the soft layer is not interposed, the waterproof structure 11, 71 itself is a thick and flexible material, and the support structure of the present invention can be applied even when it is depressed when a load is applied.

  Further, in the above-described embodiment, the case where the first screw 31, 31 and the second screw 32, 32 are used in pairs is described. However, the present invention is not limited to this, and two or more pairs can be used. . Further, it is not necessary to match the number and shape of the pushing side supporting material and the drawing side supporting material, and it can be arbitrarily set according to the magnitude of the acting force.

  And although the case where a screw was used as a support material (31, 32) was demonstrated in the said embodiment, it is not limited to this, A screw material other than a nail or a screw may be used. Further, the heads (31a, 32a) of the support member can be deformed into an arbitrary shape in accordance with a necessary function. For example, the contact area with the base plate 21 can be increased by widening the head of the pushing-side support member. By doing so, the stress is dispersed and the stability of the base plate 21 can be improved.

  Furthermore, in the said embodiment, although the seat board 4 was interposed between the base board 21 and the waterproof sheet 11, it is not limited to this, The base board 21 is directly omitted by omitting the seat board 4. The structure installed on the waterproof sheet 11 may be sufficient.

  Moreover, in the said embodiment, although the bolt material 22 was demonstrated to the example as a connection material, it is not limited to this, The structure which can connect a to-be-supported object and the base board 21, and can transmit force. Any form may be used.

1 roof (structure)
11 Waterproof sheet (waterproof layer)
12 Structure board (main body)
13 Heat insulation layer (soft layer)
20 Support anchor 2 Connection bracket 21 Base plate 21a Screw hole (hole)
22 Bolt material (connection material)
23 coating layer 31 first screw (indentation side support material)
31a Head 32 Second screw (withdrawal support)
32a Head 4 Seat plate 41 1st hole 42 2nd hole 43 Through hole 5 Reinforcement sheet (water-proof sheet material)
6 Solar power generation equipment (supported object)
7 Balcony (structure)
71 Waterproof sheet (waterproof layer)
72 Structure board (main body)
73 Gradient layer (soft layer)
8 Handrail (supported object)

Claims (7)

A waterproof support structure provided when installing a supported object on a structure whose upper surface is covered with a waterproof treatment layer,
A base plate installed above the waterproof layer;
A connecting material joined to the upper surface of the base plate to connect the supported object;
A push-side support material that is driven to the main body of the structure so that an upper end surface is disposed on the lower surface side of the base plate;
A drawing-side support material that is driven to the main body of the structure so that the head is caught on the upper surface side of the base plate;
A waterproof support structure comprising: a water shielding sheet material which covers an upper surface side of the base plate and an edge portion is stacked on the waterproof treatment layer.   The waterproof support structure according to claim 1, wherein the base plate is covered with a synthetic resin material.   A seat plate interposed between the base plate and the waterproof layer is provided, and a hole through which the push-side support member and the extraction-side support member are inserted is drilled in the seat plate. The waterproof support structure according to claim 1 or 2.   The waterproof support structure according to claim 3, wherein a through hole used for positioning is drilled at a substantially center of the seat plate.   The soft body is interposed between the main body of the structure and the waterproof layer, and the leading ends of the push-side support member and the pull-out side support member are embedded in the main body. The waterproof support structure as described in any one of thru | or 4. A disc-shaped base plate;
A bolt member whose lower end surface is joined to the center of the upper surface of the base plate;
A push-side support member disposed on the lower surface side of the base plate;
A support anchor, comprising: a drawing-side support member inserted into the hole of the base plate and having a shape in which a head is hooked on an upper surface side.   The seat plate is provided with a seat plate having a through-hole drilled in the center interposed under the base plate, and the push-side support member is inserted into the seat plate at a position symmetrical to the through-hole. The first hole and the second hole to be a pair through which the drawing-side support material is inserted are respectively drilled, and the first hole and the second hole are alternately arranged around the through hole. 7. A support anchor according to 6.