Attachment plate and roof underlayment construction method

Abstract

To simplify an installation of a frame base by reducing the number of parts.SOLUTION: An attachment plate (10) attaches a foundation (30) to a deck plate (120) formed by alternatingly connecting peaks (121) and valley bottoms (122) via wall sections (123), and comprises: a fixing section (11) that faces the wall sections (123) and is fixed via a fastening member (20); and a mounting section (13) that is formed integrally with the fixing section (11), at least a portion of which faces the peak sections (121), and to which the foundation (30) is directly attached.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to an attachment plate and a method for constructing a roof underlayment. [Background technology]

[0002] Roofs on which photovoltaic power generation equipment equipped with multiple solar cell modules is installed are known (see, for example, Patent Document 1). Such roofs are constructed by providing a base for the equipment on the top surface of a deck plate used as the roof substrate, laying insulation around the base, and further covering the insulation with a waterproof sheet. Conventional rack foundations include a foundation, an upper plate on which the foundation is mounted, a lower plate fitted into the deck plate, and a heat insulating material mounted between the upper plate and the lower plate. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-208361 Summary of the Invention [Problem to be solved by the invention]

[0004] When installing a mounting base on a deck plate, in addition to the upper plate, lower plate, and insulation material, screws are required to connect the upper plate, lower plate, and insulation material, and screws to connect the lower plate and deck plate. This creates the problem of a large number of parts and the time it takes to install the mounting base.

[0005] Therefore, the present invention has been made in consideration of the above-mentioned problems, and aims to provide a technique that can reduce the number of parts and make it easier to attach a rack base. [Means for solving the problem]

[0006] In order to solve the above problems, one aspect of the present invention is an attachment plate for attaching a foundation to a deck plate formed by alternating peaks and valley bottoms via wall portions, characterized in that it comprises a fixing portion that faces the wall portions and is fixed via a fastening member, and an attachment portion that is formed integrally with the fixing portion, at least a portion of which faces the peak portions, and to which the foundation is directly attached.

[0007] In the above aspect, it is preferable to further include an insulating portion provided on the surface of the fixing portion and the mounting portion facing the deck plate.

[0008] In the above aspect, it is preferable that the insulating portion has heat insulating properties.

[0009] In the above aspect, the fastening members are preferably bolts and nuts.

[0010] In the above aspect, it is preferable that the fastening member is formed so that the fastening portion is fixed to the deck plate by being inserted from the fastening portion toward the deck plate.

[0011] In the above aspect, it is preferable that the fixing portion is fixed to adjacent ones of the wall portions.

[0012] In the above aspect, it is preferable that the fixing portion is fixed to one of the wall portions other than the adjacent wall portion.

[0013] In the above aspect, it is preferable that the fixing device further includes a bent portion that is continuous with the attachment portion and is bent in a direction different from that of the fixing portion.

[0014] In order to solve the above problem, one aspect of the present invention is a method for constructing a roof underlayment using a mounting foundation comprising the above-mentioned attachment plate and a foundation directly attached to the attachment plate, characterized by comprising the steps of: fixing the attachment plate to which the foundation is directly attached to the wall portion of the deck plate with fastening members; laying insulation material on the upper surfaces of the deck plate and the attachment plate excluding the installation area of ​​the foundation; and laying waterproofing material on the upper surface of the insulation material excluding the installation area of ​​the foundation. [Effects of the Invention]

[0015] According to one aspect of the present invention, the number of parts can be reduced, making it easier to attach the rack base. [Brief explanation of the drawings]

[0016] [Figure 1] FIG. 1 is a perspective view schematically illustrating a roof underlayment using a platform foundation. [Figure 2] FIG. 2 is an enlarged cross-sectional view showing a portion of the rack foundation in the roof foundation shown in FIG. [Figure 3] FIG. 10 is a perspective view showing a state in which the rack foundation is attached to the deck plate. [Figure 4] FIG. [Figure 5] FIG. 10 is a diagram showing the process of attaching the base to the top of the deck plate. [Figure 6] 1A to 1C are diagrams showing the process of installing heat insulating materials, waterproofing materials, etc. [Figure 7] FIG. 3 is a diagram showing the heat transmission coefficient in each region of FIG. 2. [Figure 8] FIG. 10 is a side view showing an attachment plate in Modification 1. [Figure 9] FIG. 10 is a cross-sectional view showing an attachment plate in Modification 2. DETAILED DESCRIPTION OF THE INVENTION

[0017] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that in the following description, the drawings are schematic, and the dimensional relationships and ratios of the elements may differ from the actual ones. The dimensional relationships and ratios may also differ between the drawings.

[0018] 1 is a perspective view showing a schematic view of a roof underlayment 100 using a mounting base 1. The mounting base 1 is attached to a deck plate 120 used in the roof underlayment 100, and is a structure for installing equipment 200, such as a solar power generation system, a hot water unit for heating water, an outdoor unit for an air conditioner, or other equipment including signs, on the roof of a building.

[0019] <Roofing underlayment> The roof underlayment 100 includes a deck plate 120, a frame foundation 1, a heat insulating material 140, an insulating material 160, a waterproofing material 170, and a sealing material 180. In the following, the direction in which the deck plate 120 is bridged between beams (steel beams) B will be referred to as the longitudinal direction (length direction) L of the deck plate 120, and the direction in which the deck plate 120 extends, intersecting the longitudinal direction L, will be referred to as the transverse direction (width direction) W. A fixed rail 210 is fixed to the frame foundation 1 via screws 34 (see FIG. 4). The fixed rail 210 is, for example, a steel material with a substantially C-shaped cross section. The fixed rail 210 may alternatively be formed in a substantially Z-shape, or may be made of stainless steel or an aluminum alloy. The fixed rail 210 is provided along the longitudinal direction L with respect to one peak portion 121 of the deck plate 120. A support 220 extending from the equipment 200 is fixed to the fixed rail 210. In this way, the equipment 200 is installed on the roof underlayment 100. The fixed rail 210 may also be provided along the short-side direction W, or the equipment 200 may be installed directly on the roof underlayment 100 without the fixed rail 210.

[0020] (Deck plate) The rack foundation 1 can be attached to, for example, a deck plate 120, but the deck plate 120 to which the rack foundation 1 is attached is not particularly limited. FIG. 2 is an enlarged cross-sectional view showing the rack foundation 1 portion of the roof underlayment 100 shown in FIG. 1. The deck plate 120 is a corrugated steel plate formed by roll forming or the like of a thin steel plate that has been subjected to a surface treatment (plating treatment). The deck plate 120 has a peak portion 121, a valley bottom portion 122, and a wall portion 123. Note that the deck plate 120 does not necessarily have to be surface treated.

[0021] The deck plate 120 has a wave shape in which peaks 121 and valleys 122 each extending in the longitudinal direction L are continuous with each other in the lateral direction W via a wall 123 also extending in the longitudinal direction L. Each deck plate 120 is made up of two peaks 121, three valley bottoms 122, and two pairs of wall sections 123, and is formed in a wave shape in cross section along the short side direction W. Note that, depending on the dimension of the deck plate 120 in the short side direction W, only one peak 121 may be provided on one deck plate 120. Furthermore, when one deck plate 120 is connected to another deck plate 120 in the short side direction W, the connection portion between the deck plates 120 functions as a valley bottom 122. The deck plate 120 may be end-closed at both ends in the longitudinal direction L.

[0022] The peak portion 121 is a flat portion located above and spaced apart from the beam B when the beam B is bridged between the beams B, and is a plate-like portion extending in the longitudinal direction L. The peak portion 121 has a groove 1210. The groove 1210 is formed so as to be recessed toward the valley bottom portion 122. The groove 1210 extends in the longitudinal direction L, and when there is only one groove 1210, it is provided near the center in the lateral direction W. The groove 1210 in the peak portion 121 improves the strength of the peak portion 121. There is no need to form a single groove 1210 in the peak portion 121, and a plurality of grooves 1210 may be formed. Note that the groove 1210 does not necessarily have to be formed.

[0023] The valley bottom 122 is parallel or approximately parallel to the peak 121, and is a flat portion that is placed on the beam B when the beam B is bridged between the beams B. The valley bottom 122 is a plate-like portion that extends in the longitudinal direction L. The valley bottom 122 does not overlap with the peak 121 in the lateral direction W. Note that the groove 1210 formed in the peak 121 may also be formed in the valley bottom 122.

[0024] The wall portion 123 is a portion that connects the peak portion 121 and the valley bottom portion 122, and is a plate-like portion that extends in the longitudinal direction L. The wall portion 123 extends obliquely from both end sides of the peak portion 121 toward the valley bottom portion 122 in the short direction W. The wall portions 123 adjacent to each other in the short direction W extend at an angle in different directions so as to move away from the peak portion 121. The wall portions 123 are inclined so as to form a predetermined angle, for example, an obtuse angle, with respect to the peak portion 121 and the valley bottom portion 122. Note that the grooves 1210 formed in the peak portion 121 may be formed in the wall portion 123. A plurality of embossed portions 1230 (see FIG. 3) are formed on the wall portion 123. The embossed portions 1230 are provided at predetermined intervals along the longitudinal direction L. The embossed portions 1230 are formed so as to protrude from the inside toward the outside of the deck plate 120. The embossed portions 1230 increase the rigidity of the deck plate 120. The intervals between the embossed portions 1230 can be set as desired; for example, the embossed portions 1230 may extend without any intervals along the longitudinal direction L. In the wall portion 123, a through hole for inserting a fastening member 20 is formed in a portion facing the through hole 14 of the fixing portion 11 of the attachment plate 10 (described later) to be attached.

[0025] A bulge 124 is formed at the transition between the valley bottom 122 and the wall 123. The bulge 124 is a portion that protrudes to opposite sides of a pair of wall 123 at one peak 121. That is, the bulge 124 is formed to face each other on a pair of wall 123 that face each other across the valley bottom 122, and bulges in directions that bring them closer to each other. An engagement groove (dovetail groove) 125 extending along the longitudinal direction L is formed between the bulge portion 124 and the valley bottom 122. The cross section of the engagement groove 125 along the short direction W is formed to be curved. The engagement groove 125 is formed in a pair of wall portions 123 at one peak portion 121 in directions approaching each other. That is, in a pair of wall portions 123 facing each other across the valley bottom 122 of the deck plate 120, the engagement grooves 125 are formed to face each other and curve in directions away from each other. Note that the engagement groove 125 may be formed with protrusions in the short direction W toward the valley bottom 122 at predetermined intervals along the longitudinal direction L by embossing.

[0026] (mounting foundation) Fig. 3 is a perspective view showing a state in which the cradle foundation 1 is attached to the deck plate 120. Fig. 4 is a perspective view of the cradle foundation 1. The frame base 1 is attached to the deck plate 120, and is used when the equipment 200 is attached to the deck plate 120 via fixed rails 210 and supports 220 that serve as the frame. The equipment 200 may also be attached directly to the deck plate 120 by the frame base 1. The mounting base 1 includes an attachment plate 10 and a base 30.

[0027] The attachment plate 10 is attached to the deck plate 120 so as to straddle one of the peaks 121 of the deck plate 120. The attachment plate 10 is a plate-shaped member made of, for example, stainless steel. The attachment plate 10 is formed by bending both ends in the short side direction toward one surface. The attachment plate 10 is provided on one of the peaks 121 of the deck plate 120 at a position where a fixed rail 210 to which a support column 220 of the equipment 200 is fixed is arranged along the longitudinal direction L or the short side direction W, or at a position where the support column 220 is arranged. The attachment plate 10 is a plate-like member that attaches a foundation 30 for installing equipment 200 to a deck plate 120 .

[0028] The attachment plate 10 includes a fixing portion 11, a mounting portion 13, and an insulating portion 15. The fixing portions 11 face the wall portions 123 of the deck plate 120 that are inclined in different directions, and are fixed to the wall portions 123 via fastening members 20. The fixing portions 11 are fixed to adjacent ones of the wall portions 13, respectively. The fixing portions 11 are formed by bending both short-side ends of the attachment plate 10 toward one surface. That is, a pair of fixing portions 11 are formed. The fixing portions 11 are formed with through holes 14 that penetrate from the front surface to the back surface and through which the fastening members 20 are inserted. For example, two through holes 14 are formed. When the attachment plate 10 is attached to the deck plate 120 (hereinafter simply referred to as the "attached state"), the pair of fixing portions 11 are provided at both ends in the short direction W of the mounting portion 13, which extends along the longitudinal direction L, and extend along the wall portion 123. In other words, the fixing portions 11 extend away from each other from the mounting portion 13. The pair of fixing portions 11 may be elastically deformable so as to move toward and away from each other. The fixing portions 11 form, for example, an obtuse angle with the mounting portion 13. In the attached state, the tip ends of the fixing portions 11 reach the portions facing the embossed portions 1230 of the deck plate 120. The fixing portion 11 has a shape that conforms to the wall portion 123, and is in surface contact with the embossed portion 1230 of the wall portion 123 when attached. The engagement between the attachment plate 10 and the deck plate 120 increases the resistance to external forces that attempt to remove the attachment plate 10 from the deck plate 120. Furthermore, during installation, slippage in a temporary placement state can be suppressed, improving installation efficiency. Note that, depending on the surface shape of the wall portion 123, a gap may be formed between the wall portion 123 and the fixing portion 11. In an installed state, the attachment plate 10 is attached to the wall portion 123 of the deck plate 120 at its fixing portions 11 by a plurality of fastening members 20, such as bolts and nuts. When the fastening members 20 are bolts 21 and nuts 22, the bolts 21 are inserted into a plurality of through holes 14 in each fixing portion 11 along the longitudinal direction L, and the nuts 22 are screwed onto the fixing portion 11 from the opposite surface. Here, the fastening members 20 may be formed so that the fixing portion 11 is fixed to the deck plate 120 by being inserted from one surface of the fixing portion 11 toward the deck plate 120. Specifically, the fastening members 20 can be hollow nuts, one-sided bolts, or the like, and can be fastened from one side of the fixing portion 11.

[0029] The mounting portion 13 is formed integrally with the fixed portion 11 and extends between the pair of fixed portions 11. At least a portion of the lower surface of the mounting portion 13 faces at least one peak portion 121 and covers the peak portion 121, and the foundation 30 is directly attached to the upper surface of the mounting portion 13. The foundation 30 is directly attached to the upper surface of the mounting portion 13 by welding or the like. The mounting portion 13 is placed on the summit portion 121 in an attached state in which the attachment plate 10 is attached to the deck plate 120 . In the attached state, the attachment portion 13 is formed flat along the peak portion 121. The dimension of the attachment portion 13 in the short side direction W is the same as or approximately the same as the dimension of the peak portion 121 in the short side direction W. The mounting portion 13 may have a recess formed in a concave shape on the side to which the fixing portion 11 extends. For example, in the mounted state, the recess extends along the longitudinal direction L and engages with a groove 1210 formed in the crest portion 121. In this case, the recess increases the rigidity of the attachment plate 10, and engagement of the recess with the groove 1210 enables stable positioning of the attachment plate 10 relative to the deck plate 120 in the short-side direction W.

[0030] The insulating section 15 is provided to prevent electrolytic corrosion that occurs due to a potential difference when the different metals come into contact and the surface becomes wet with rainwater, because the foundation 30 is made of stainless steel to prevent rust due to rainwater, and the deck plate 120 is made of plated steel. In conventional rack foundations, there was no problem because a heat insulating material was provided between the foundation 30 and the deck plate 120, but the attachment plate 10 comes into direct contact with the deck plate 120, so the insulating section 15 is provided between the attachment plate 10 and the deck plate 120. The insulating portion 15 is provided on the underside of the attachment plate 10, on the surface facing the deck plate 120. The insulating portion 15 is provided over the entire area of ​​the fixed portion 11 and the mounting portion 13. Here, a through hole for inserting a fastening member 20 is formed in the portion of the insulating portion 15 facing the through hole 14 of the fixed portion 11. The insulating portion 15 is formed from an insulating material such as butyl rubber. The insulating material is not limited to butyl rubber, and resin may also be used. The insulating portion 15 is preferably made of a material that can be provided to follow the fixing portion 11 and the mounting portion 13 of the attachment plate 10. It is more preferable to use a material with excellent heat insulating and heat resistant properties for the insulating portion 15 among insulating materials. If the attachment plate 10 is dipped in resin, the problem of electrolytic corrosion does not arise, and therefore the insulating portion 15 does not need to be provided.

[0031] The foundation 30 is directly attached to the attachment plate 10 and is connected to the deck plate 120 via the attachment plate 10. In the attached state, the support columns 220 or fixed rails 210 of the equipment 200 are attached to the foundation 30. The base 30 includes a cylindrical portion 32, a top surface portion 33, and a screw 34. The cylindrical portion 32 is a cylindrical member formed from, for example, steel, resin, or the like, and having an elliptical or circular cross section. One end of the cylindrical portion 32 is covered by a plate-like top surface portion 33 formed from, for example, steel, resin, or the like. The outer diameter of the top surface portion 33 is the same as or approximately the same as the outer diameter of the cylindrical portion 32. The top surface portion 33 is integrally and concentrically connected to the cylindrical portion 32, for example, by welding. The shape of the top surface portion 33 is not particularly limited, as long as it corresponds to the shape of the cylindrical portion 32. A screw 34 is attached to the center of the top surface portion 33, that is, on an axis passing through the center of the cylindrical portion 32. The screw 34 is fixed to the top surface portion 33 by, for example, welding. The screw 34 is adapted to be screwed directly into the fixed rail 210 to which the support column 220 of the equipment 200 is fixed, or into the support column 220. The other end of the cylindrical portion 32 opposite the top surface portion 33 abuts against the upper surface of the mounting portion 13 of the attachment plate 10 and is directly attached to the attachment plate 10 by, for example, welding.

[0032] (heat insulation, insulating materials, waterproofing materials, sealing materials) The heat insulating material 140 is a plate-like member formed from a lightweight material (foam material, etc.) containing air, such as phenolic foam. The heat insulating material 140 is laid over the entire roof underlayment 100 on the deck plate 120, except for the area around the foundation 30. The insulating material 160 is used to insulate the heat insulating material 140 from the waterproof material 170, and is, for example, a sheet made of an insulating material such as polyethylene. The insulating material 160 is laid on top of the heat insulating material 140. Depending on the material of the heat insulating material 140, the insulating material 160 may be omitted. The waterproofing material 170 is, for example, a synthetic resin sheet or an asphalt sheet, and although there are no limitations on the material or thickness, it has a predetermined environmental adaptability (the property of being resistant to deterioration when exposed to sunlight or raindrops). The waterproofing material 170 is laid on top of the insulating material 140. Furthermore, sheathing boards (not shown), which are plate-shaped members made of, for example, cemented wood wool boards, may be provided above, below, or above and below the insulating material 140. The sealing material 180 is made of, for example, a silicone-based sealing material, a rubber asphalt-based sealing material, etc., and is applied to the joints of the waterproofing material 170 and hardens to prevent rainwater from penetrating into the heat insulating material 140 and the insulating material 160.

[0033] <How to construct a roof underlayment> Next, a method for constructing the roof foundation will be described. Fig. 5 shows the process of attaching the rack foundation 1 to the peak 121 of the deck plate 120. Fig. 6 shows the process of installing the heat insulating material 140, the waterproofing material 160, etc. First, the frame foundation 1 is installed at a position on the deck plate 120 where the equipment 200 will be placed, specifically, at a predetermined position on the summit 121 of the deck plate 120 where the fixed rails 210 or supports 220 to which the equipment 200 will be fixed will be placed. The base 30 is directly attached to the attachment plate 10 of the frame foundation 1 by welding or the like, and the attachment plate 10 is installed so as to fit into the summit 121 from the fixed portion 11 side. Because the fixed portions 11 of the attachment plate 10 sandwich the summit 121, it is possible to prevent the attachment plate 10 from shifting from a desired position relative to the deck plate 120 in the longitudinal direction L and the lateral direction W. Next, a hole is drilled through the deck plate 120 in the thickness direction at a position facing the through hole 14 formed in the fixing portion 11 of the attachment plate 10. Note that the through hole 14 formed in the fixing portion 11 of the attachment plate 10 may be formed at the same time as the hole drilled in the deck plate 120 after the attachment plate 10 has been installed on the deck plate 120. Next, the bolt 21 of the fastening member 20 is inserted through the through hole 14 formed in the fixing portion 11 of the attachment plate 10, and the bolt 21 is passed through the fixing portion 11, the insulating portion 15 and the wall portion 123, and then the nut 22 is screwed in from the opposite side of the fixing portion 11, thereby fixing the attachment plate 10 to the deck plate 120. Next, the heat insulating material 140 is laid on the upper surface of the deck plate 120 and the attachment plate 10 except for the installation area of ​​the foundation 30. Next, the waterproof material 160 is laid on the upper surface of the heat insulating material 140 except for the area where the foundation 30 is installed. Next, the waterproofing material 160 including the foundation 30 is covered with a reinforcing material 170 , and the joints of the reinforcing material 170 are sealed with a sealant 180 . Through the above steps, the roof underlayment 100 can be constructed.

[0034] According to this type of rack foundation 1, the foundation 30 is attached directly to the attachment plate 10, and the attachment plate 10 is fastened to the deck plate 120 with bolts 21 and nuts 22. This eliminates the need to separate the base into an upper plate and a lower plate as in conventional rack foundations, and eliminates the need for insulating material or screws to connect the upper plate, lower plate, and insulating material. This reduces the number of parts of the rack foundation 1, making it easier to install the rack foundation 1. Furthermore, an insulating portion 15 is provided on the surface of the attachment plate 10 facing the deck plate 120, so even if the attachment plate 10 and the deck plate 120 are made of different metals, the presence of the insulating portion 15 can prevent electrolytic corrosion. Furthermore, by providing insulating portion 15 with heat insulating properties, the heat insulating effect of the roof can be improved. Furthermore, by using bolts 21 and nuts 22 as fastening members 20 to fix the attachment plate 10 to the deck plate 120, the fastening strength per fastening point can be increased compared to when screws are used, thereby reducing the number of parts and shortening the construction period. Furthermore, by using hollow nuts or one-sided bolts as the fastening members 20, the attachment plate 10 can be fixed to the deck plate 120 from only one side of the attachment plate 10.

[0035] Here, the influence of the case where no heat insulating material is provided on the frame foundation 1 will be described. Fig. 7 is a diagram showing the thermal conductivity in each region of Fig. 2. As shown in Fig. 7, region A is a region where the rack base 1 is not provided, region B is a region around the base 30 of the rack base 1 (a region where the heat insulating material 140 and the attachment plate 10 overlap), and region C is a region where the base 30 of the rack base 1 is provided (a region where the heat insulating material 140 is not provided), and the thermal conductivity is compared for each region. The thermal conductivity in area A is 0.42121 W / m 2 ·k, the thermal conductivity in region B is 0.41849 W / m 2 ·k, the thermal conductivity in region C is 4.63753W / m 2 ·k, is. Here, the average thermal conductivity of the roof underlayment 100 calculated based on the thermal conductivity and area ratio of each of areas A to C is 0.42167 W / m 2 ·k, which is only about 0.1% different from the area A where the insulation material 140 is provided. In other words, since the area occupied by the frame foundation 1 is very small compared to the area of ​​the roof underlayment 100, there is almost no effect on the insulation performance even if insulation material is not provided in the frame foundation 1. Therefore, it is possible to omit the insulation material provided in conventional frame foundations, and reduce the number of parts.

[0036] <Modification> 8 is a side view showing an attachment plate 10A in Modification 1. Note that the same components as those in the attachment plate 10 are given the same reference numerals and the description thereof will be omitted. The attachment plate 10A has a bent portion 17 that is continuous with the mounting portion 13 and is bent in a direction different from that of the fixed portion 11. The bent portion 17 extends in a direction substantially perpendicular to the surface of the mounting portion 13. By providing such a bent portion 17, the strength of the attachment plate 10A can be increased, and the strength of the frame base 1 can be increased.

[0037] 9 is a cross-sectional view showing an attachment plate 10B in Modification 2. Note that the same components as those in the attachment plate 10 are given the same reference numerals and the description thereof will be omitted. The attachment plate 10B is not fixed to one peak portion 121, but is fixed across multiple peak portions 121. That is, the fixing portion 11b of the attachment plate 10B is fixed to the wall portions 123 other than the adjacent wall portions 123 among the wall portions 123. Because attachment plate 10B is fixed across multiple peaks 121, the length of mounting portion 13b along the short side direction (width direction) W is longer than that of attachment plate 10A. In addition, since mounting portion 13 is longer, insulating portion 15b is also longer. When attachment plate 10B is provided across an odd number of peaks 121, base 30 is disposed above peaks 121, and when attachment plate 10B is provided across an even number of peaks 121, base 30 is disposed above valley bottom 122.

[0038] <Other> Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above embodiments and includes all aspects encompassed by the concept of the present invention and the scope of the claims. Furthermore, each configuration may be appropriately and selectively combined to achieve at least some of the above-described problems and effects. Furthermore, for example, the shape, material, arrangement, size, etc. of each component in the above embodiments may be appropriately modified depending on the specific use of the present invention. The number of fastening members 20 that secure the attachment plates 10, 10A, 10B to the deck plate 120 is not particularly limited. The equipment and equipment rails attached to the screws 34 of the frame base 1 are not limited to the equipment 200, fixed rails 210, and support posts 220 described in the above embodiment. [Explanation of symbols]

[0039] 1...Frame foundation 10, 10A, 10B...Attachment plate 11, 11b...Fixed part 13, 13b...Mounting part 14...Through hole 15, 15b...insulation section 17...Bending part 20 Fastening members 21...Bolt 22...Nut 30…Basics 100...Roof underlayment 120...Deck plate 121...Mountain top 122...valley bottom 123...Wall part 140...Insulation material 160...insulating material 170…Waterproof material 180...Sealing material 200…Equipment

Claims

1. An attachment plate for attaching a foundation to a deck plate formed by alternating mountain peaks and valley bottoms via wall portions, a fixing portion facing the wall portion and fixed via a fastening member; a mounting portion formed integrally with the fixing portion, at least a portion of which faces the summit portion, and to which the foundation is directly attached; An attachment plate comprising:

2. 2. The attachment plate according to claim 1, further comprising insulating portions provided on surfaces of the fixing portion and the mounting portion facing the deck plate.

3. 3. The attachment plate according to claim 2, wherein the insulating portion has heat insulating properties.

4. 4. The attachment plate according to claim 1, wherein the fastening members are bolts and nuts.

5. 4. The attachment plate according to claim 1, wherein the fastening member is formed so that the fixing portion is fixed to the deck plate by being inserted through the fastening member from the fixing portion toward the deck plate.

6. 4. The attachment plate according to claim 1, wherein the fixing portions are fixed to adjacent ones of the wall portions.

7. 4. The attachment plate according to claim 1, wherein the fixing portion is fixed to one of the wall portions other than the adjacent wall portion.

8. 4. The attachment plate according to claim 1, further comprising a bent portion that is continuous with the mounting portion and is bent in a direction different from that of the fixing portion.

9. A method for constructing a roof foundation using a platform foundation comprising the attachment plate according to any one of claims 1 to 3 and a foundation directly attached to the attachment plate, a step of fixing the attachment plate, to which the foundation is directly attached, to the wall portion of the deck plate by a fastening member; a step of laying a heat insulating material on the upper surfaces of the deck plate and the attachment plate except for the installation area of ​​the foundation; A step of laying a waterproof material on the upper surface of the heat insulating material except for the installation area of ​​the foundation; A method for constructing a roof foundation, comprising:

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