JP2011226180A - Installation structure of roof facility supporting bolt and installation method of the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an installation structure and an installation method of a bolt for fixing a facility to a roof such as a roof floor on which a waterproof sheet is laid, the installation structure and the installation method of the bolt for supporting the facility on the roof comprising an excellent load bearing capacity and workability and surely maintains waterproof performance.SOLUTION: The installation structure of the bolt for supporting the facility comprises a facility supporting bolt 3 fixed to a bolt support hole 1c, a sealing material bracket 4 which is installed to the bolt 3 so as to cover an exposed base portion of the bolt 3, a cover sheet 5 which is attached to an upper surface of the sealing material bracket and a waterproof sheet 2 of an outer periphery of the bracket as a first sealing material, and a sealing washer 6 which is installed to the bolt 3 so as to cover a bolt inserting portion of the cover sheet and is tightened up by a nut 61 as a second sealing material. The cover sheet 5 secures air tightness between the sealing material bracket 4 and the waterproof sheet 2 of the outer periphery of the bracket 4, and the sealing washer 6 seals a minute gap between the sealing material bracket 4 and the bolt 3.

Description

  The present invention relates to a mounting structure for a roof equipment support bolt and a method for attaching the bolt, and more specifically, for equipment support for fixing equipment to a roof such as a roof where a waterproof sheet is laid on a concrete base. The present invention relates to a bolt mounting structure and a mounting method.

  As a waterproofing treatment for roofs such as rooftops of buildings, a dry construction method in which a waterproof sheet excellent in load resistance, weather resistance, and heat insulation, for example, a waterproof sheet having a multilayer structure mainly made of vinyl chloride is laid. ing. In such a construction method, as a waterproof sheet fixing hardware, a large number of steel plate disks with hot melt adhesive applied to the surface are arranged at predetermined intervals on the roof and fixed to the housing side with screws in advance, The workability is dramatically improved by heating the disk from the surface of the developed waterproof sheet with an electromagnetic induction heating device, melting the hot-melt adhesive on the surface, and sticking the waterproof sheet to the disk. (See Patent Documents 1 and 2).

  Moreover, on the roof, when installing the solar cell module etc. which are used for a solar power generation system, the mount is fixed to the housing side with the volt | bolt. As a method for fixing such a pedestal, a bolt support hole is opened from the surface of the waterproof sheet as described above, a base portion of the bolt is inserted into this hole and fixed with a resin, and then the tip of the bolt is attached to a required part. After placing the concrete around the bolt in a state protruding by the length to form a base in which the bolt base is embedded, and further forming a waterproof layer on the surface of the base and the surrounding roof surface, There has been proposed a method of placing a base on a base and fixing the base to a bolt (see Patent Document 3).

  Furthermore, as a rooftop facility, a structure in which a floor finish plate is installed using a pedestal provided with bolts in advance has been proposed in order to constitute a rooftop that is excellent in design and suitable for walking. In such a structure, after fixing the disk-shaped pedestal with the bolts standing and having the bottom surface covered with resin from the top of the waterproof sheet to the housing side with a screw, the surface of the pedestal is covered with an additional sheet, and The additional sheet is welded to the pedestal surface and a waterproof sheet around the pedestal, and the receiving part of the floor finish plate is fixed to the tip of the bolt (see Patent Document 4).

Japanese Patent No. 3872708 JP 2008-267059 A JP 2000-17802 A JP 2010-13873 A

  By the way, the above-mentioned technology for installing a solar cell module base is excellent in load resistance because it directly fixes the bolt to the housing, but it takes time to install the base, and when replacing or remodeling the equipment. In addition to the problem that it is difficult to remove the pedestal, there is a risk of damaging the waterproof sheet by placing concrete. Moreover, there is a problem that water easily penetrates to the back side of the waterproof sheet along the bolt, and the waterproof property on the roof is impaired.

  On the other hand, the above technique of installing a floor finish plate has the advantage that it can be constructed by a nearly dry method, but because the pedestal is fixed with a small-diameter screw, the load supporting force of one pedestal is small and the equipment is heavy. More pedestals must be installed when applied to Further, there is a problem that water that has permeated from the base end of the bolt easily permeates to the back side of the waterproof sheet along the pedestal fixing screw, and the waterproof property on the roof is impaired as in the above case.

  Whatever equipment is used, when installing equipment on a roof such as a rooftop, it is extremely important to maintain waterproof performance in addition to being excellent in load bearing capacity and workability. The present invention has been made in view of the above circumstances, and its purpose is a bolt mounting structure and a mounting method for fixing equipment to a roof such as a roof where a waterproof sheet is laid on a concrete base. Then, it is excellent in load support power and workability, and is providing the installation structure of the installation support bolt which can maintain the waterproof performance of a roof reliably, and the installation method of the said bolt.

  In order to solve the above-described problems, in the present invention, an inverted shallow dish-like shape for applying a waterproof sealing material to a bolt for supporting a facility directly fixed to a roof frame on which a waterproof sheet is laid. A sealing material receiver, a cover sheet as a first sealing material, and a seal washer as a second sealing material are sequentially attached, and the base of the bolt is covered with the sealing material receiver and sealed. Adhering the cover sheet to the top surface of the material receiving material and the waterproof sheet on the outer peripheral side of the sealing material receiving material ensures airtightness between the sealing material received material and the surrounding waterproof sheet. By tightening a seal washer on the sealing material receiver with a nut, a minute gap between the sealing material receiver and the bolt is sealed, and water permeation along the bolt is suppressed.

  That is, the first gist of the present invention is a mounting structure for equipment supporting bolts on a roof on which a waterproof sheet is laid, a bolt supporting hole opened at a predetermined position on the roof where the equipment is to be disposed, and the waterproof sheet. A bolt for supporting the equipment that is fixed in the bolt support hole by penetrating through, and a sealant receiving material that is formed in an inverted shallow dish shape and covers the exposed base of the bolt, A cover sheet as a first sealing material which is made of a water-impermeable sheet and is attached to the bolt and attached to the upper surface of the sealing material receiver and the waterproof sheet on the outer peripheral side of the sealing material receiver And a seal washer as a second sealing member that is attached to the bolt so as to cover the bolt insertion portion of the cover sheet and is tightened with a nut to the sealing material receptacle through the cover sheet. ing Preparative consists in mounting structure of the equipment supporting bolt roof characterized by.

  Further, the second gist of the present invention is a method for mounting equipment supporting bolts on a roof on which a waterproof sheet is laid, wherein a bolt support hole is opened from the surface of the waterproof sheet to a predetermined position on the roof where the equipment is to be placed. Then, after fixing the bolts for supporting the equipment in the bolt support holes, an inverted shallow dish-shaped sealing material receiver is attached to the bolts to cover the exposed bases of the bolts, and then a water-impermeable sheet A cover sheet as a first sealing material consisting of the above is attached to the bolt, and the cover sheet is attached to the upper surface of the sealing material receiver and the waterproof sheet on the outer peripheral side of the sealing material receiver, Attaching a seal washer as a second sealing material to the bolt to cover the bolt insertion portion of the cover sheet, and tightening the seal washer with a nut to the sealing material receiving material via the cover sheet Characterize It resides in the method of mounting the root of equipment support for the bolt.

  According to the present invention, since it can be constructed mainly using only the bolts for supporting the equipment, the sealant receiving material, the cover sheet, the seal washer and the nut, the workability can be further improved, and the bolts for supporting the equipment. Since it is directly fixed to the housing, a larger load supporting force can be obtained. Then, the base of the bolt is covered with the encapsulant receiving material, and a cover sheet as the first encapsulating material is adhered to secure the airtightness between the encapsulating material received and the surrounding waterproof sheet, Tighten the sealing washer as the sealing material of 2 with a nut from the top of the cover sheet, seal the minute gap between the sealing material receiving object and the bolt, and suppress water permeation along the bolt. Without impairing the function of the roof, the waterproof performance of the roof can be reliably maintained.

It is a longitudinal cross-sectional view which shows the attachment structure of the equipment support volt | bolt of the roof which concerns on this invention. It is an expansion | deployment perspective view which shows the main members used for the attachment structure and attachment method of the roof equipment support volt | bolt which concern on this invention. It is a partial perspective view of the roof which shows the example of laying a waterproof sheet, and the example of arrangement of the equipment support bolt in a partially broken manner.

  Embodiments of a roof equipment support bolt mounting structure (hereinafter abbreviated as “mounting structure”) and a roof equipment support bolt mounting method (hereinafter abbreviated as “mounting method”) according to the present invention. Is described based on the drawings. The present invention is applied to a roof such as a roof of a building in which a frame is constructed of concrete such as a reinforced concrete structure, a precast concrete structure, and a lightweight cellular concrete structure, and a waterproof sheet is laid on the concrete base. Hereinafter, the form applied to the roof of the building which is one of the roofs will be described.

  As the waterproof sheet indicated by reference numeral 2 in FIG. 3, for example, a sheet mainly made of vinyl chloride is used. Such a waterproof sheet 2 has a multilayer structure of vinyl chloride resin, or a structure in which a glass fiber layer is interposed therebetween, and is designed to have a thickness of about 1.5 to 3 mm. The waterproof sheet 2 as described above is stipulated in JIS A6008 “general composite PVC sheet”, and is widely used in the building field as, for example, the trade name “Diaforte (registered trademark)” manufactured by Ryoxing Plastics. ing.

As shown in FIG. 3, the waterproof sheet 2 is laid on the roof using a steel plate disk 9 which is a hardware for fixing the waterproof sheet. The disc 9 is formed in an inverted shallow dish shape having a thickness of 0.8 mm and a diameter of 88 mm by, for example, punching a steel plate, and is provided with a screw hole in the center. It is fixed with screws at a rate of about 5 pieces / m ² . A hot melt adhesive is applied to the surface of the disk 9, and the waterproof sheet 2 is heated from the surface by an electromagnetic induction heating device in a state where the waterproof sheet 2 is unfolded on the roof surface. It is affixed to the disk 9.

  Moreover, the edge part of the waterproof sheet 2 is using the flat plate 91 made from the steel plate by which the hot-melt-adhesive was apply | coated to the surface, and is being fixed to the housing side like the above, The upper edge of the waterproof sheet 2 of a fence part The portion is fixed and sealed to the water return portion by a presser plate 92. Further, a base sheet 21 made of foamed polyethylene and having a thickness of about 2 mm may be preliminarily laid on the surface of the concrete base 1 in order to achieve thermal insulation between the waterproof sheet 2 and the concrete base 1. Further, similarly to the conventional heat insulating waterproofing method, a heat insulating material made of expanded polyethylene, expanded polystyrene, expanded polyurethane, expanded phenol or the like is provided between the waterproof sheet 2 and the concrete base 1 or between the base sheet 21 and the concrete base 1. It may be laid between them. The waterproof sheet 2 can also be laid by a conventional wet construction method using an adhesive.

  First, the mounting structure of the present invention on the roof will be described. In FIG. 3, the code | symbol S has shown the bolt attachment part to which this invention is applied. As shown in FIGS. 1 and 2, the mounting structure of the present invention is fixed to the bolt support hole 1c through the bolt support hole 1c opened at a predetermined position on the roof where the equipment is to be placed and the waterproof sheet 2. A bolt 3 for supporting the equipment, a sealing material receiving member 4 formed in an inverted shallow dish shape and covering the exposed base of the bolt 3, and a non-permeable sheet and the bolt 3, a cover sheet 5 as a first sealing material that is attached to the upper surface of the sealing material receiver 4 and the waterproof sheet 2 on the outer peripheral side of the sealing material receiver, and a bolt of the cover sheet 5 A seal washer 6 is provided as a second sealing material that is attached to the bolt 3 so as to cover the insertion portion and is fastened to the sealing material receiver 4 with a nut 61 via the cover sheet 5.

  A required number of bolt support holes 1c are provided at predetermined positions according to the arrangement of the equipment. The bolt support hole 1c is opened with a diameter corresponding to about 110 to 130% of the diameter of the bolt 3 in order to fill the bolt fixing material 10 to be described later. Is set so that the bolt 3 is embedded by about 50 mm. The bolt support hole 1c may be provided before the waterproof sheet 2 is laid, or may be opened from the surface of the existing waterproof sheet 2 as will be described later.

  The bolt 3 is inserted into the bolt support hole 1 c and is vertically fixed to the bolt support hole by a bolt fixing material 10. The specifications of the bolt 3 vary depending on the equipment to be supported. For example, when installing a solar cell module, the bolt 3 is a stainless steel or steel bolt having a diameter of about 8 to 12 mm and a length of about 100 to 150 mm. Is used. As the bolt fixing material 10 for fixing the bolt 3, a thermosetting resin such as epoxy acrylate can be used. From the viewpoint of workability, adhesive strength, and weather resistance, a two-pack type epoxy adhesive is preferable.

  The sealing material receiver 4 is a member made of a steel plate that works in cooperation with first and second sealing materials described later to exhibit a waterproof function, and has a thickness of, for example, 1 by punching the steel plate. It is formed in the shape of an inverted shallow dish with a diameter of 2 mm and a diameter of 64 mm, and the insertion hole for the bolt 3 is provided at the center thereof. The sealing material receiver 4 is inserted into the bolt in a state of covering the exposed base portion of the bolt 3 by relatively inserting the bolt 3 fixed to the bolt support hole 1c with respect to the central bolt insertion hole. It is installed. Further, an adhesive layer made of a vinyl chloride resin or the like may be applied and formed on the upper surface of the sealing material receiver 4 in order to adhere the cover sheet 5 described later by solvent or hot air fusion.

  The cover sheet 5 is disposed to seal the boundary between the outer peripheral edge of the sealing material receiver 4 and the waterproof sheet 2. The cover sheet 5 is made of a material similar to that of the above-described waterproof sheet 2 and is formed in a disk shape having a diameter larger than that of the sealing material receiver 4, for example, a diameter of 150 mm. A hole is provided. The cover sheet 5 is attached to the bolt 3 so as to cover the sealing material receiver 4 by inserting the bolt 3 relative to the insertion hole in the center, and a solvent such as tetrahydrofuran, methyl ketone, or hot air is generated. The hot air of the apparatus is used to adhere to the waterproof sheet 2 on the upper surface of the sealing material receiver 4 and the outer peripheral side of the sealing material receiver 4. In addition, the boundary part with the waterproof sheet 2 of the outer periphery of the cover sheet 5 may be further sealed with, for example, a sealing material formed by adding vinyl chloride to tetrahydrofuran.

  The seal washer 6 is mounted to seal the gap between the bolt insertion hole at the center of the sealing material receiver 4 and the bolt 3. The seal washer 6 is made of a stainless steel or the like and is formed into a short-cylinder reverse-bottomed cylindrical shape, and a short-axis cylindrical shape having a longer length than the metal cannula, and is fitted into the metal cannula. And a soft rubber sealing material such as fluorine rubber, silicon rubber, and EPDM.

  That is, the seal washer 6 has bolt insertion holes that overlap each other in the center of the metal jacket and the center of the rubber seal material, and the rubber seal material is in a state where its lower end portion slightly protrudes. It is built into the jacket. When such a rubber sealing material is tightened with a nut 61, a deformed portion of the sealing material due to the tightening, in other words, a protruding portion is a minute portion of the cover sheet 5, the sealing material receiver 4 and the bolt 3. It is designed to bite into the gap.

  The nut 61 is a nut that fixes the above-described sealing material receiver 4, the cover sheet 5, and the seal washer 6 around the bolt 3 and pressurizes the seal washer. As such a nut 61, a normal nut can be used, but a locking nut is preferably used in order to prevent deformation due to temperature change and loosening due to vibration of the casing.

  Examples of the locking nut include a so-called friction ring nut in which a friction ring, which is a spring, is integrated on the upper surface of the nut by caulking. When such a locking nut is rotated in the disengagement direction, the friction ring in contact with the screw thread acts on the screw thread in the direction toward the base end of the bolt, and the stress and its reaction force By pressurizing the screw thread, the friction torque is generated and the rotation in the direction of detachment is restricted. The locking nut as described above is generally used as a machine part under the name “U nut” manufactured by Fuji Seimitsu Co., Ltd., for example.

  In the mounting structure of the present invention, the equipment is mounted on the front end side of the bolt 3. FIG. 1 exemplifies a state in which a solar cell module mounting base is supported by bolts 3, and reference numeral 8 in the drawing denotes a module base made of lip groove steel. That is, a device receiving nut 71, a washer 72, a washer 73, and a device fixing nut 74 are sequentially screwed onto the bolt 3, and the gantry 8 is attached to the bolt 3 using a bolt insertion hole provided on one side surface thereof. It is fixed. The device receiving nut 71 is a nut for adjusting the support height of the gantry 8 and supporting a vertical load, and the device fixing nut 74 is a nut for tightening the gantry 8. In addition, by using a locking nut similar to that described above as the device fixing nut 74, it is possible to prevent loosening due to vibration or the like.

  Next, the mounting method of the present invention on the above-mentioned roof using the above mounting structure will be described. In the present invention, first, the bolt support hole 1c is opened from the surface of the waterproof sheet 2 using a concrete drill at a predetermined position on the roof where the equipment is to be arranged. Then, the bolt support hole 1c is filled with an epoxy acrylate resin as the bolt fixing material 10, the bolt 3 is inserted, the bolt fixing material 10 is cured and cured, and the bolt 3 is fixed vertically.

  Next, after mounting the above-described sealing material receiver 4 on the bolt 3 and covering the exposed base portion of the bolt 3 with the sealing material receiver 4, the above-described first sealing material comprising a water-impermeable sheet A cover sheet 5 is attached to the bolt 3. And the cover sheet 5 is adhere | attached on the waterproof sheet 2 of the outer peripheral side of the upper surface of the sealing material acceptance object 4, and the said sealing material acceptance object using the above-mentioned solvent or the hot air of a hot air generator.

  Subsequently, a seal washer 6 as a second sealing material is attached to the bolt 3 to cover the bolt insertion portion of the cover sheet 5. Then, a nut 61 is screwed onto the bolt 3, and the seal washer 6 is fastened to the sealing material receiver 4 through the cover sheet 5. By tightening the nut 61, the rubber seal material of the seal washer 6 is deformed, and the deformed portion is a gap between the cover sheet 5 and the seal material receiving material 4 and the bolt 3, that is, the cover sheet 5 and the seal material. It can be made to bite into the inner peripheral portion of the bolt insertion hole of the receiving piece 4.

  As described above, according to the present invention, the installation can be performed by using only the bolt 3 for supporting the equipment, the sealing material receiving material 4, the cover sheet 5, the seal washer 6 and the nut 61, so that the installation is extremely easy. Thus, the workability can be further improved and the construction period can be further shortened. Moreover, since the equipment supporting bolt 3 is directly fixed to the housing, a larger load supporting force can be obtained. And the base part of the volt | bolt 3 is covered with the sealing material receiving material 4, and the cover sheet 5 as a 1st sealing material is stuck, and airtightness of the sealing material receiving material 4 and the surrounding waterproof sheet 2 is ensured. Further, a seal washer 6 as a second sealing material is fastened with a nut 61 from the top of the cover sheet 5, and a minute gap between the sealing material receiver 4 and the bolt 3 is sealed along the bolt 3. Therefore, the waterproof performance of the rooftop can be reliably maintained without impairing the function of the waterproof sheet 2.

DESCRIPTION OF SYMBOLS 1: Concrete base 10: Bolt fixing material 1c: Bolt support hole 2: Waterproof sheet 21: Base sheet 3: Bolt 4: Sealing material receiving object 5: Cover sheet 6: Seal washer 61: Nut 71: Device receiving nut 74: Device fixing nut 8: Base 9: Disc 91: Flat plate 92: Presser plate S: Bolt mounting part

Claims (8)

  A structure for mounting a bolt for supporting a facility on a roof on which a waterproof sheet is laid, wherein the bolt support hole is opened at a predetermined position on the roof where the facility is to be placed, and is fixed to the bolt support hole through the waterproof sheet. A bolt for supporting the equipment, a sealing material receiver formed in an inverted shallow dish shape and covering the exposed base of the bolt, and a non-water-permeable sheet. A cover sheet as a first sealing material that is attached and attached to the upper surface of the sealing material receiver and the waterproof sheet on the outer peripheral side of the sealing material receiver, and covers the bolt insertion portion of the cover sheet A roof equipment support, comprising: a seal washer as a second sealant attached to the bolt in a state and fastened with a nut to the sealant receiving material through the cover sheet for Belt of the mounting structure.   The mounting structure according to claim 1, wherein the cover sheet is bonded to the waterproof sheet on the upper surface of the sealing material receiver and the outer peripheral side of the sealing material receiver using a solvent or hot air.   The seal washer is made of a metal mantle formed in a short shaft reverse bottomed cylindrical shape, and a rubber made of a short shaft that is longer than the metal mantle and fitted in the metal mantle. The mounting structure according to claim 1, wherein the rubber seal material includes a deformed portion formed by tightening a nut that is caught in a gap between the cover sheet and the seal material receiving material and the bolt.   The mounting structure according to any one of claims 1 to 3, wherein the nut for tightening the seal washer is a locking nut formed by integrating a friction ring on an upper surface of the nut.   A method of mounting equipment support bolts on a roof on which a waterproof sheet is laid, wherein a bolt support hole is opened from the surface of the waterproof sheet at a predetermined position on the roof where the equipment is to be placed, and the bolt support hole is used for equipment support. After fixing the bolt, an inverted shallow dish-shaped sealing material receiver is attached to the bolt to cover the exposed base of the bolt, and then a cover as a first sealing material made of a water-impermeable sheet A sheet is attached to the bolt, the cover sheet is adhered to the waterproof sheet on the upper surface of the sealing material receiver and the outer peripheral side of the sealing material receiver, and a seal washer as a second sealing material Mounting the bolt on the cover sheet, covering the bolt insertion portion of the cover sheet, and fastening the seal washer with a nut to the sealing material receiver through the cover sheet Law.   The attachment method according to claim 5, wherein the cover sheet is bonded to the waterproof sheet on the upper surface of the sealing material receiver and the outer peripheral side of the sealing material receiver using a solvent or hot air.   As a seal washer, a metal mantle formed in a short-axis reverse-bottomed cylindrical shape, and a rubber mantle formed in a short-axis cylinder longer than the metal mantle and fitted in the metal mantle 6. A washer composed of a sealing material is used, and a deformed portion of the rubber sealing material of the sealing washer is fitted into a gap between the cover sheet and the sealing material receiving object and the bolt by tightening a nut. Or the attachment method of 6.   The attachment method according to any one of claims 5 to 7, wherein a locking nut formed by integrating a friction ring on an upper surface of the nut is used as a nut for fastening the seal washer.

Images