JP2018009302A - Fixing structure of waterproof sheet and renovation method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mechanical fixing method of a waterproof sheet capable of reducing the man-hour by facilitating positioning a fixing plate for renovation requiring no additional hole to be formed in a substrate when carrying out renovation.SOLUTION: A fixing structure of a waterproof sheet includes: a receiver attached to a substrate; an existing fixing plate disposed on the receiver; a fixing plate fastener which is detachably fixed to the receiver penetrating through the existing fixing plate; and a waterproof sheet which is laid over the substrate and is fixed by the existing fixing plate.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a waterproof sheet fixing structure and a repair method thereof.

  A waterproof sheet structure is used as a waterproof structure for rooftops, verandas, and balconies of buildings. Moreover, in order to shorten the construction period in the construction of the waterproof sheet structure, a simple construction method that does not require man-hours for construction is desired. A so-called mechanical fixing method is used in which the waterproof sheet is fixed using a fixing disk and fixing screws.

  The mechanical fixing method is a method that can shorten the construction period compared to the bonding method in which the waterproof sheet is fixed using an adhesive, in that there is no need to wait for the substrate to be adjusted and the moisture in the substrate to dry. is there.

This mechanical fixing method generally includes a front-end method and a post-attach method.
The front-end construction method is a method in which a fixing disk whose upper surface is covered with an adhesive layer is fixed on a waterproof base with a fixing screw, and after the waterproof sheet is laid on the waterproof base, the fixing disk and the waterproof sheet are joined. It is. And the method etc. of welding using an induction heating apparatus etc. are used for joining of a fixed disk and a waterproof sheet.
Further, the post-installation method is a method in which a waterproof sheet is laid on a waterproof base, and then a holding sheet is suppressed and fixed with a metal fixing screw, and a reinforcing sheet is joined and fixed from above.

  Here, the waterproof structure needs to be repaired due to deterioration over time. In the repair by the mechanical fixing method, it is necessary to fix the repair fixing disk to the base in order to lay and fix the waterproof sheet for repair. The fixed disk for repair is usually fixed while being shifted from the position of the existing fixed disk.

  As such a renovation method, Patent Document 1 discloses a method for renovating a waterproof sheet structure in which an existing waterproof sheet is laid and constructed by an insulation method, and a second bonding piece for refurbishment is provided between existing first bonding pieces. A method is disclosed in which a waterproof sheet for repairing is laid and bonded to a second joining piece for repair by dispersing and arranging at predetermined positions and fixing on an existing waterproof sheet.

Japanese Patent No. 4056634

However, such mechanical fixing method renovation requires a new fixing position of the fixing plate (fixing disk) for fixing the waterproofing sheet for repair, which takes time and increases the work period. There is a fear.
Furthermore, since the fixing plate is fixed to the base with a fixing screw, when fixing the fixing plate for refurbishment, it is necessary to newly drill the fixing screw in the base. Therefore, there is a concern about an increase in man-hours due to this new drilling. In addition, there is a concern that the sound and vibration generated by new drilling at the time of renovation may cause discomfort to indoor people.

  Therefore, the present invention has been made in consideration of the above points, and it becomes possible to reduce the number of man-hours for repair by facilitating positioning of the fixing plate for repair at the time of repair in the mechanical fixing method. It is an object of the present invention to provide a waterproof sheet fixing structure suitable for a repair method and a repair method for the waterproof sheet fixing structure that do not require a new perforation in the base during the repair.

The gist of the present invention is to removably fix a fixing plate for fixing the waterproof sheet to a receiving device driven into the base.
A receiving tool struck on the base, an existing fixing plate disposed on the receiving base, a fixing plate fastener that passes through the existing fixing plate and is detachably fixed to the receiving base, and is laid on the base And a waterproof sheet fixing structure including a waterproof sheet fixed by an existing fixing plate. Furthermore, a waterproof sheet may be laid on an existing fixing plate as a front-end construction method, and a waterproof sheet fixing structure in which the upper surface of the existing fixing plate and the lower surface of the waterproof sheet are joined may be used. Alternatively, an existing fixing plate may be fixed to the holder by a fixing plate fastener from above the existing waterproof sheet, and the waterproof sheet fixing structure may further include a reinforcing sheet that covers the existing fixing plate and is joined to the waterproof sheet.
Furthermore, as a method of repairing these waterproof sheet fixing structures, the fixing plate fastener is removed, a repair fixing plate is placed on the receiver, and the fixing plate fastener is passed through the existing fixing plate to the receiver. It can be set as the repair method of a waterproof sheet fixing structure provided with the process to fix and the process of laying the repair waterproof sheet for repair from on the existing waterproof sheet. In addition, a step of removing the fixing plate fastener, a fixing plate for repair on the receiver, a step of passing the fixing plate fastener through the existing fixing plate and fixing it to the receiver, and a top of the existing waterproof sheet Laying a repair waterproof sheet for repair,
It is good also as a repair method of a waterproof sheet fixing structure provided with. In addition, the process of removing the fixing plate fastener, the process of laying a repair waterproof sheet for repair on the existing waterproof sheet, and the repair fixing plate are arranged on the repair waterproof sheet to repair the fixing plate fastener A process of passing through the fixing plate and the repair waterproof sheet and fixing to the receiver, and a process of laying a repair reinforcing sheet on the repair fixing plate and joining the repair waterproof sheet for repair and the repair reinforcing sheet A repair method of the waterproof sheet fixing structure, a step of removing the fixing plate fastener, a step of removing a part of the existing fixing plate and the existing waterproof sheet, and a repair waterproof sheet for repair from the existing waterproof sheet. A method for fixing a waterproof sheet fixing structure, including a step of laying and a step of fixing a fixing plate for repair from above the receiver, and passing the fixing plate fastener through the existing fixing plate and fixing the fixing plate to the receiver. Removing the plate fastener and The process of removing a part of the existing fixing plate and the existing waterproof sheet, the step of placing the fixing fixture for repair on the receiver, passing the fixing plate fastener through the existing fixing plate and fixing it to the receiver, and the existing waterproofing A repair method for a waterproof sheet fixing structure comprising a step of laying a repair waterproof sheet for repair from above a sheet and a repair fixing plate, and a step of joining the repair fixing plate and the repair waterproof sheet for repair, The process of removing the fixing plate fastener, the process of removing a part of the existing fixing plate and the existing waterproof sheet, the process of laying a repair waterproof sheet for repair on the existing waterproof sheet, and the repair on the repaired waterproof sheet Fixing plate for fixing, fixing plate fastener through the fixing plate for repair and repair waterproof sheet and fixing it to the receiver, and laying the repair reinforcing sheet on the fixing plate for repair, Repair waterproof sheet and repair reinforcement sheet A step of bonding the bets may be new renewal method of the waterproof sheet fixed structure with.
Furthermore, as a refurbishment method that performs the second refurbishment after these refurbishment methods, a step of removing the fixing plate fastener, a new fixing plate is arranged on the receiver, and the fixing plate fastener is replaced with a new fixing plate. It is possible to provide a repair method for a waterproof sheet fixing structure that includes a step of passing through and fixing to a receiver and a step of laying a new waterproof sheet on the repair waterproof sheet.

  According to the present invention, since the receiving device is driven into the base and the fixing plate fastener is penetrated through the fixing plate and fixed in a detachable manner with the receiving device, the fixing plate for repair can be positioned at the time of repair. By making it easy, it becomes possible to reduce the man-hour for repair. Furthermore, no new drilling is required in the base, and sound and vibration can be reduced.

It is sectional drawing which shows 1st Embodiment of this invention. It is sectional drawing which shows the modification of 1st Embodiment of this invention. It is sectional drawing which shows 2nd Embodiment of this invention. It is sectional drawing which shows the modification of 2nd Embodiment of this invention. It is sectional drawing which shows the modification of 1st Embodiment of this invention, 2nd Embodiment. It is sectional drawing which shows the modification of 1st Embodiment of this invention, 2nd Embodiment. It is sectional drawing which shows the modification of 1st Embodiment of this invention, 2nd Embodiment.

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

1 and 2 are sectional views of a waterproof sheet fixing structure before renovation according to the first embodiment. A receiver 2 is driven into the base 1, an existing fixing plate 3 is disposed thereon, and a fixing plate fastener 4 penetrates the existing fixing plate 3 and is fixed to the receiver 2. Further, the existing waterproof sheet 5 is laid on the base 1, and the existing waterproof sheet 5 is fixed by the existing fixing plate 3.
In the waterproof sheet fixing structure, the fixing plate fastener 4 is detachably fixed to the receiver 2, and the existing waterproof sheet 5 is fixed by the fixing plate fastener 4. Therefore, positioning at the time of repair becomes easy. Further, when the fixing plate fastener 4 is used for repairing the existing waterproof sheet 5, the fixing plate fastener 4 can be fixed without newly drilling a base. Thus, this embodiment has a waterproof sheet fixing structure suitable for renovation work.

  More specifically, the embodiment of FIG. 1 has a waterproof sheet fixing structure by a tipping method, and a support 2 is fixed to a base 1. The existing fixing plate 3 is disposed on the receiver 2, and the fixing plate fastener 4 penetrates the existing fixing plate 3 and is fastened to the receiver 2 toward the base. Then, the existing waterproof sheet 5 is laid so as to cover the existing fixing plate 3 and the base 1, and the existing waterproof sheet 5 is joined to the lower surface of the existing waterproof sheet 5 by joining the upper surface of the existing fixing plate 3 and the existing fixing plate 3. Fixed to. Thus, the existing waterproof sheet 5 is fixed to the base 1 through the existing fixing plate 3.

  The existing fixing plate 3 and the existing waterproof sheet 5 are joined by heat fusion, solvent welding, or the like, but in the embodiment of FIG. 1, they are joined by fusion using an induction heating device.

  FIG. 2 shows a waterproof sheet fixing structure by a retrofitting method as a modification of the first embodiment. An existing waterproof sheet 5 is laid on the base 1, a receiver 2 is driven into the base 1, an existing fixing plate 3 is disposed thereon, and the fixing plate fastener 4 penetrates the existing fixing plate 3 to the receiver 2. It is fastened. Further, an existing reinforcing sheet 6 is laid so as to cover a part of the existing fixing plate 3 and the existing waterproof sheet 5. The edge part of the existing reinforcing sheet 6 is joined to the existing waterproof sheet 5, and a sealer (not shown) is applied to the edge part.

  Here, the receiver 2 and the fixed plate fastener 4 may be detachable. As shown in FIG. 1, it is possible to form a concave-shaped receiving member 2 and a convex-shaped fixing plate fastener 4. Furthermore, the receiving device 2 and the fixing plate fastener 4 are preferable because they are threaded so that they can be easily detached and the fixing strength is maintained. Furthermore, it is more preferable that the receiver 2 has a female screw and the fixing plate fastener 4 has a male screw.

  The support 2 is driven into the ground and fixed. More specifically, after the base 1 is formed, the base 1 is driven into the base 1 and fixed. Therefore, the receiver 2 may be formed by drilling the base 1 to provide a pilot hole, and driving the receiver 2, or the base 2 may be directly punched by the base 2 and the receiver 2 may be driven into the base 1.

  In particular, when the base 1 is perforated and the pilot hole is provided, it is more preferable to provide a fixing means for sufficiently fixing the support 2 to the base 1. In this case, an epoxy-based or urethane-based adhesive may be injected into the prepared hole provided in the base 1, or a cushioning material having appropriate flexibility inserted into the prepared hole may be used. The cushioning material is inserted into the prepared hole, and the support 2 is driven from above. At this time, since the cushioning material has flexibility, it fills the space between the pilot hole and the receiving device 2 and assists in firmly fixing the receiving device 2 to the base 1. Therefore, it is preferable that the cushioning material is made of resin having appropriate flexibility and strength, and has a shape that is inserted into the pilot hole and receives the receiving member 2 inside thereof. In the case of a cylindrical receptacle as shown in FIG. 1, the cushioning material is preferably a cylinder having the same shape as the receptacle 2. A plurality of fixing means may be used, and an adhesive and a buffer material may be used in combination.

In addition, as another form of sufficiently fixing the receiver 2 to the base 1, the receiver 2 may have a fixing means. For example, the receiver 2 may be firmly fixed in the pilot hole by driving the receiver 2 into a pilot hole provided in the base 1 so that the outer shape of the receiver 2 is expanded or a protrusion is expanded. The distal end side of the receiving tool 2 inserted into the inner side of the base 1 has an extended portion, and the receiving portion 2 is firmly fixed to the base by extending the extended portion with respect to the base. Furthermore, the receiving device 2 has a cylindrical main body having a space inside and a core portion inserted inside the main body. The main body is provided with an extension portion having a slit, and the core portion is pushed into the main body. It is also possible to adopt a structure in which the extension part spreads in a skirt shape. Moreover, it is good also as a structure which a protrusion protrudes toward the outer side from a main body by pushing a core part inside a main body. Here, the core portion may be formed in a cone shape. And it becomes easy to attach or detach with the fixed plate fastener 4 which has a male screw by having a female screw inside the main body.
As another form, a brim-like portion may be provided on the opposite side to the base side of the receptacle 2 driven into the base 1, that is, on the upper side with respect to the base. For example, the main body of the receiving device 2 has a cylindrical shape having a female screw on the inside, and a form having a plate-like brim-like portion larger than the diameter of the main body portion along the circumference of one end edge of the main body can be exemplified. By having the brim-like portion in this way, the receiving device 2 becomes substantially T-shaped when viewed from the side. Therefore, the brim-shaped portion restricts the brim-shaped portion having a diameter larger than that of the main body from being stopped on the base 1 when the receiver 2 is driven into the base 1 so that the receiver 2 is not excessively driven into the base. Moreover, since the receiving device 2 is driven into a fixed position of the base 1 when the fixing plate fastener 4 is fixed, a problem that the length of the fixing plate fastener 4 is insufficient can be prevented. Further, the existing fixing plate 3 is disposed on the fixing plate and the fixing plate fastener 4 is fixed to the receiving tool 2 so that the existing fixing plate 3 is more stably fixed.

The fixing plate fastener 4 needs to be detachably fixed to the receiver 2 and preferably has a shape corresponding to the receiver 2. The fixing plate fastener 4 is a fastener for fixing the existing waterproof sheet 5 to the receiver 2, and screws, screws, bolts, nails or the like are used. As the material, steel materials such as carbon steel, alloy steel, and stainless steel can be used. The head of the fixing plate fastener 4 should be flat, flat, and pan so that the head does not protrude from the upper surface of the existing fixing plate 3, and the recessed shape of the seat surface to be hung with a screwdriver or wrench is a cross hole, hexagon Holes and square holes are preferred.
If the receiver 2 has a female screw, it is preferable that the fixing plate fastener 4 has a male screw because it is easy to attach and detach.
Further, when the fixing plate fastener 4 is fixed to the receiving device 2, an elastic body such as a washer, washer, rubber or the like is sandwiched between the fixing plate fastener 4 and the fixing plate such as the existing fixing plate 3. Also good.

The existing fixing plate 3 only needs to be able to fix the existing waterproof sheet 5. It is preferable to provide a hole for penetrating the fixing plate fastener 4 through the thickness direction. It is preferable that a counterbore for accommodating the head of the fixing plate fastener 4 is provided around the hole. The thickness of the existing fixed plate 3 is about 0.5 mm to 2.0 mm, and the shape is arbitrary such as a rectangular plate shape that is a square or a rectangle, a circular or elliptical disk shape, a long shape, and the size is One side or outer diameter can be formed to be about 50 mm to 100 mm. The existing fixing plate 3 is made of metal, hard synthetic resin, wood or the like. Metal is preferable from the viewpoint of strength and durability. As the material of the steel plate constituting the metal fixing plate, a steel plate that is resistant to rust even in high humidity, such as a stainless steel plate or a steel plate that has been subjected to rust prevention treatment such as zinc, aluminum, magnesium plating or galvanization, is suitable. used.
Here, the fixing plate for repair used for the repair described later, and the fixing plate for repair used for the second and subsequent repairs can be the same as the existing fixed plate.

  When the existing fixing plate 3 and the existing waterproof sheet 5 are joined by fusion as in the embodiment of FIG. 1, an adhesive layer is provided on the upper surface of the existing fixing plate 3. The adhesive layer of the existing fixing plate 3 includes various adhesives such as acrylic, urethane, epoxy, nitrile rubber, styrene-butadiene rubber, heat of polyvinyl chloride resin, polyolefin resin, acrylic resin, etc. The sealing material etc. which melt | dissolved the composition of the thermoplastic resin coating layer and thermoplastic resins, such as a polyvinyl chloride-type resin and an acrylic resin, in the solvent can be used. Considering the bonding strength, it is preferable to use the same material for the existing waterproof sheet 5 and the thermoplastic resin coating layer. When the existing waterproof sheet 5 is made of a polyvinyl chloride resin, The thermoplastic resin coating layer is also preferably made of a polyvinyl chloride resin. Further, the adhesive layer is not only provided in advance on the upper surface of the existing fixing plate 3, but may be newly provided at the time of construction.

  The foundation 1 is a building roof, a veranda, a balcony or the like, and a concrete foundation, metal foundation, lightweight foamed concrete (ALC), steel, wood, or the like is used. Moreover, you may laminate | stack other layers, such as an inorganic board and a mortar material layer, on the foundation | substrate 1. FIG.

As the existing waterproof sheet 5, a thermoplastic resin waterproof sheet is preferably used, and a polyvinyl chloride resin, a polyolefin resin, an acrylic resin, or the like can be used.
The existing waterproof sheet 5 may be a single layer of a thermoplastic resin layer, but a multi-layer product in which base layers such as glass cloth, glass nonwoven fabric, polyester cloth, and polyester nonwoven fabric are laminated from the viewpoint of excellent dimensional stability and tensile strength. preferable. The base material layer may be provided in the lowermost layer, but may be provided in the middle of the thermoplastic resin layer. The thermoplastic resin layer may be a single layer or a plurality of layers, and the composition of each layer may be different.
Here, the repair waterproof sheet used for the repair described later and the repair waterproof sheet used for the second and subsequent repairs can be the same as the existing waterproof sheet.

The existing reinforcing sheet 6 can be the same sheet as the existing waterproof sheet 5, a thermoplastic resin waterproof sheet is preferably used, and a vinyl chloride resin, a polyolefin resin, an acrylic resin, or the like can be used. The existing reinforcing sheet 6 may be a single layer of a thermoplastic resin layer, or may be a multilayer product in which base layers such as glass cloth, glass nonwoven fabric, polyester cloth, and polyester nonwoven fabric are laminated. The thermoplastic resin layer may be a single layer or a plurality of layers, and the composition of each layer may be different.
Here, the repair reinforcement sheet used for the repair mentioned later and the repair reinforcement sheet used for the second and subsequent repairs can be the same as the existing reinforcement sheet.

  In the present invention, members other than those described above may be further provided. For example, you may use the heat insulating material used as a heat insulation layer for a base | substrate, an inorganic board, a buffer sheet, etc.

As a second embodiment, a modification of the first embodiment will be described.
In the second embodiment, the fixing plate fastener is removed from the receiving device driven into the base, and the fixing plate for repairing is fixed by fixing the fixing plate for repairing to the receiving device with the fixing plate for repairing. The gist is to fix a waterproof sheet for repair. Since the support is fixed to the groundwork, the fixing plate for repair can be arranged according to the support when fastening the fixing plate for repair at the time of repair, and the positioning work of the fixing plate for repair becomes simple. The number of repair work will be reduced. In addition, since the receiving tool is repeatedly used even during refurbishment, there is no need to drill new holes in the groundwork, and noise and vibration during renovation can be reduced.

In the waterproof sheet fixing structure of FIGS. 1 and 2, a repair method for the waterproof sheet fixing structure of the second embodiment will be described with reference to FIGS. 3 and 4. The fixed plate fastener 4 is removed by cutting the existing waterproof sheet 3 or the existing reinforcing sheet 6 covering the fixed plate fastener 4. Then, the repaired waterproof sheet 8 is laid from above the existing waterproof sheet 5, and the fixed plate fastener 4 is fixed to the receiver 2 through the repair fixing plate 7 arranged on the receiver 2. The repair waterproof sheet 8 is fixed by a repair fixing plate 7.
As described above, the repair method according to the second embodiment can be applied to any of the pre-fix method and the post-fix method. In addition, if the pre-renovation method is the front-end construction method, either the front-end method or the retrofitting method can be applied. Similarly, if the pre-renovation method is the retrofitting method, the front-end method or the rear-end method is applied. can do.
Here, at the time of repair, at least one of the existing waterproof sheet 5 and the existing fixed plate 3 may be removed. Further, the existing waterproof sheet 5 and the existing fixing plate 3 may be repaired without being removed. Next, the case where both the existing waterproof sheet 5 and the existing fixing plate 3 are removed will be further described.

The modification of the tip construction method will be described with reference to FIGS.
The existing waterproof sheet 5 is cut open, the fixing plate fastener 4 is removed, the existing waterproof sheet 5 around the existing fixed plate 3 is cut, and the cut existing waterproof sheet 5 and the existing fixed plate 3 are removed. Then, the fixing plate 7 for repair is placed on the receiving device 2 and fixed to the receiving device 2 with the fixing plate fastener 4. Next, the repair waterproof sheet 8 is laid on the base 1 from the top of the existing waterproof sheet 5, the repair waterproof sheet 8 and the repair fixing plate 7 are joined, and the repair waterproof sheet 8 is fixed.
The fixing plate 7 for repair and the waterproof sheet 8 for repair are bonded by heat, welding by a solvent, or the like, similar to the bonding of the existing waterproof sheet 5 and the existing fixing plate 3, but the embodiment of FIG. Are joined by fusion using an induction heating device.

As a more specific example, a receiver 2 is driven and fixed to a concrete base 1 in FIG. The support 2 is cylindrical and has a female screw on the inside. And the existing fixing plate 3 which has a polyvinyl chloride resin layer as an adhesive layer on the upper surface with a circular steel plate is arranged on the base 1 in accordance with the position of the receiving device 2, and is fixed to the receiving device 2. Thus, the existing fixing plate 3 is fixed. The fixed plate fastener 4 is a screw, has a male screw, and can be screwed in corresponding to the receiver 2. An existing waterproof sheet 5 made of polyvinyl chloride resin covering the base 1 and the existing fixing plate 3 is laid, and the lower surface of the existing waterproof sheet 5 and the adhesive layer of the existing fixing plate 3 are melt-bonded by an induction heating device.
At the time of refurbishment in FIG. 3, a part of the existing waterproof sheet 5 is incised, and the fixing plate fastener 4 screwed into the receiver 2 is removed by rotating it in reverse. The existing waterproof sheet 5 is cut around the existing fixed plate 3, and the existing waterproof sheet 5 is removed together with the existing fixed plate 3. And the fixing plate 7 for repair is arrange | positioned according to the position of the receiving tool 2, and the male screw part of the fixing plate fixing tool 4 is screwed and fixed to the female screw part of the receiving tool 2 from on the fixing plate 7 for repairing. The repair fixing plate 7 is fixed to the base 1. The repair waterproof sheet 8 is laid so as to cover the existing waterproof sheet 5 and the repair fixing plate 7. The repairing fixing plate 7 and the repairing waterproof sheet 8 are the same as the existing fixing plate 3 and the existing waterproofing sheet 5. And the lower surface of the repair waterproof sheet 8 and the adhesive layer of the repair fixing plate 7 are melt-bonded by an induction heating device.

  Here, since the existing fixing plate 3 and the existing waterproof sheet 5 are joined, when it is not easy to peel the existing waterproof sheet 5 from the existing fixing plate 3, the repair fixing plate 7 is used as a new fixing plate. It is preferable to use it. In particular, when the existing fixing plate 3 and the existing waterproof sheet 5 are joined by fusion using an induction heating device, even if the existing waterproof sheet 5 is peeled off from the existing fixing plate 3, the existing waterproof sheet 5 does not peel cleanly. In addition, since the adhesive layer (not shown) of the existing fixing plate 3 is difficult to reuse, it is preferable to use a new fixing plate for the repair fixing plate 7.

  Further, when the existing fixing plate 3 is removed, the existing waterproof sheet 5 is cut off, but at least the existing waterproof sheet 3 on the fixing plate fastener 4 may be cut off. The existing waterproof sheet 5 may be cut out larger than the existing fixed plate 3. In FIG. 3, the existing waterproof sheet 5 cut out has a size corresponding to the existing fixed plate 3, and the remaining existing waterproof sheet 5 is laid on the base 1.

  To remove the existing fixing plate 3, the fixing plate fastener 4 is removed. The head of the fixing plate fastener 4 is exposed by cutting out or making an incision in the existing waterproof sheet 5, and the fixing plate fastener 4 using a screwdriver or a drill or the like in the recess provided in the head of the fixing plate fastener 4. Can be removed.

  In this way, by removing the existing fixing plate 3 and the existing waterproof sheet 5, the receiver 2 can be visually recognized. Accordingly, the repair fixing plate can be easily arranged and fixed on the receiver 2 with the receiver 2 as a guide.

  Since the receiver 2 is fixed to the base 1 and the fixing plate fastener 4 is detachably fixed to the receiver 2, there is no need to perforate the base when fixing the fixing plate fastener to the base. For this reason, noise and vibration in the renovation work can be reduced. Here, when a person is in a room regardless of the date and time, such as a hospital or an apartment, sound and vibration at the time of renovation become a problem. In such a case, since the fixing plate fastener 4 is detachably fixed to the receiver 2, drilling at the time of repair becomes unnecessary, and sound and vibration can be reduced.

  Next, the modification of the embodiment of FIG. 2 will be described with reference to FIGS. The existing reinforcing sheet 6 around the existing fixing plate 3 is cut, the fixing plate fastener 4 is further removed, and the cut existing reinforcing sheet 6 is removed. The repaired waterproof sheet 8 is laid on the existing waterproof sheet 5 and the receiver 2. Then, the repair fixing plate 7 is arranged on the repair waterproof sheet 8 at the upper portion of the receiving device 2 and fixed to the receiving device 2 by the fixing plate fastener 4. Since the fixing plate 7 for repair can be arranged with the support 2 as a guide, positioning becomes easy. The fixed plate fastener 4 may be an existing fixed plate fastener or may be replaced with a new fixed plate fastener. It is preferable to replace with a new fixing plate fastener in terms of durability. A repair reinforcing sheet 9 is laid and fixed from above the repair waterproof sheet 8 so as to cover the repair fixing plate 7. In FIG. 4, the periphery of the repair reinforcing sheet 9 and the repair waterproof sheet 8 are joined. Bonding between the periphery of the repair reinforcing sheet 9 and the repair waterproof sheet 8 can be performed by fusion by heat, welding by a solvent, adhesion by an adhesive, or the like. A sealer (not shown) is applied to the edge of the repair reinforcing sheet 9 for water stop.

As a more specific example, the receiver 2 is driven and fixed to the concrete base 1 in FIG. The support 2 is cylindrical and has a female screw on the inside. An existing waterproof sheet 5 made of polyvinyl chloride resin is laid on the base, and the existing fixing plate 3 is disposed on the existing waterproof sheet 5. The existing fixed plate 3 is a circular steel plate and has a polyvinyl chloride resin layer on the upper surface and the lower surface. A fixed plate fastener 4 passes through the existing fixed plate 3 and is fixed to the receiver 2. Here, the fixing plate fastener 4 is a screw having a male screw, and can be screwed in corresponding to the receiving member 2 having a female screw inside. Therefore, the existing fixing plate 3 is fixed by the fixing plate fastener 4 and the existing waterproof sheet 5 is fixed to the substrate by being fastened by the substrate 1 and the existing fixing plate 3. Furthermore, the existing reinforcing sheet 6 made of polyvinyl chloride resin is arranged on the existing fixing plate 3 so that the back surface (lower surface) of the existing reinforcing sheet 6 and the front surface (upper surface) of the existing fixing plate 3 are joined. The outer edge portion of the existing reinforcing sheet 6 formed larger than the fixing plate 3 is joined to the existing waterproof sheet 5. Furthermore, a water stop treatment is performed around the existing reinforcing sheet 6 by a sealer (not shown).
At the time of refurbishment in FIG. 4, the existing reinforcing sheet 6 around the existing fixing plate 3 is cut, the existing reinforcing sheet 6 is cut open, the fixing plate fastener 4 is removed, and the cut existing reinforcing sheet 6 and the existing fixing are fixed. Remove the plate 3. Here, the existing reinforcing sheet 6 and the existing fixing plate 3 are joined and can be removed at the same time. A modified waterproof sheet 8 made of polyvinyl chloride resin is laid on the existing waterproof sheet 5 and the receiver 2. Then, the repair fixing plate 7 whose upper and lower surfaces are covered with the polyvinyl chloride resin layer is disposed on the repair waterproof sheet 8 above the receiving device 2. The fixing plate fastener 4 having a male screw is turned around and fixed to the receiving member 2 having a female screw. As a result, the repair fixing plate 7 is fixed to the base, and the repair waterproof sheet 8 is fixed by being fastened by the repair fixing plate 7 and the base 1. A repair reinforcing sheet 9 made of polyvinyl chloride resin is arranged on the repair waterproof sheet 8 so as to cover the repair fixing plate 7. The rear surface of the repair reinforcing sheet 9 is joined to the polyvinyl chloride resin layer (not shown) of the repair fixing plate 7 and the repair waterproof sheet 8, and the edge portion is water-stopped with a sealer (not shown).

Next, a case where the existing fixing plate 3 is not removed at the time of repair will be described.
The repair method that does not remove the existing fixed plate 3 at the time of repair is different from the repair method shown in FIGS. 3 and 4 in that the existing fixed plate 3 is not removed. 6 and FIG. 7, the repair method of laying the repair waterproof sheet 8 for repair on the existing waterproof sheet 5 and the existing fixture 3 and the repair fixing plate 7 for repair are arranged on the upper part of the receiver 2. Then, the fixing plate 7 has a step of passing through the fixing plate 7 for fixing and fixing it to the receiving device 2, and the fixing waterproof sheet 8 is fixed by the fixing plate 7 for repair.
Hereinafter, FIGS. 6 and 7 will be described in more detail.

  The repair method in the prior method shown in FIG. 1 will be described with reference to FIG. A part of the existing waterproof sheet 5 on the fixed plate fastener 4 is cut open, and the fixed plate fastener 4 is removed. Then, the existing waterproof sheet 5 and the existing fixing plate 3 are arranged on the receiving fixture 2 without removing the existing fixing plate 3, and the fixing fixing plate 7 is fixed to the receiving fixture 2 with the fixing plate fastener 4. Next, the repair waterproof sheet 8 is laid on the base 1 from the top of the existing waterproof sheet 5, the repair waterproof sheet 8 and the repair fixing plate 7 are joined, and the repair waterproof sheet 8 is fixed.

  Next, the repair method in the retrofitting method shown in FIG. 2 will be described with reference to FIG. A part of the existing reinforcing sheet 6 on the fixed plate fastener 4 is cut open, and the fixed plate fastener 4 is removed. The modified waterproof sheet 8 is laid on the existing waterproof sheet 5 and the support 2 without removing the existing fixing plate 3. Then, the repair fixing plate 7 is placed on the receiving device 2 from above the repair waterproof sheet 8 and fixed to the receiving device 2 with the fixing plate fastener 4. A repair reinforcing sheet 9 is laid and fixed from above the repair waterproof sheet 8 so as to cover the repair fixing plate 7. In FIG. 7, the periphery of the repair reinforcing sheet 9 and the repair waterproof sheet 8 are joined. Bonding between the periphery of the repair reinforcing sheet 9 and the repair waterproof sheet 8 can be performed by fusion by heat, welding by a solvent, adhesion by an adhesive, or the like. The edge of the repair reinforcing sheet 9 is water-stopped with a sealer (not shown).

  As described above, in the repair method, the existing fixing plate 3 and the existing waterproof sheet 5 may be removed or left. Further, either one of the existing fixing plate 3 and the existing waterproof sheet 5 may be removed. Here, it is preferable to remove the existing fixing plate 3 and the existing waterproof sheet in that the thickness of the waterproof structure after the repair is reduced and the design and safety during walking are increased. On the other hand, leaving the existing fixing plate 3 and the existing waterproof sheet 5 is preferable in that the number of man-hours for removing them can be reduced and waste materials can be reduced. Further, the existing reinforcing sheet 6 may be removed in the same manner, or may be repaired while being attached.

  Moreover, the example of using a front-end construction method for the modification of the front-end construction method and using the back-end construction method for the rear-end construction method was shown. However, the post-attachment method may be used for the modification of the pre-attachment method, or the pre-attachment method may be used for the modification of the post-attachment method.

FIG. 5 shows a structure of a rising wall portion such as a parapet as a modification of the first embodiment. The embodiment of FIG. 5 is a waterproof sheet fixing structure by a tipping method at a rising portion. The support 2 is fixed to the base 1 along the rising wall 10. An existing fixing plate 3 is fixed on the support 2 by a fixing plate fastener 4. In this modification, the existing fixed plate 3 is a rectangular plate shape, and the fixed plate fastener 4 penetrates the existing fixed plate 3 and is fastened to the receiver 2. More specifically, the existing fixing plate 3 is formed in an elongated shape along the direction in which the rising wall 10 such as a parapet extends. Then, the existing waterproof sheet 5 is laid so as to cover the existing fixing plate 3 and the base 1, and the upper surface and the lower surface of the existing waterproof sheet 5 are joined to the base of the existing fixing plate 3 so that the existing waterproof sheet 5 is existing. It is fixed to the fixed plate 3. Thus, the existing waterproof sheet 5 is fixed to the base 1 through the existing fixing plate 3. The upper surface of the existing fixing plate 3 is provided with the same polyvinyl chloride resin adhesive layer as the existing waterproof sheet 5, and the lower surface of the existing waterproof sheet 5 and the upper surface of the existing fixing plate 3 are fused by an induction heating device. It is joined.
In such a waterproof sheet fixing structure, the fixing plate fastener 4 is detachably fixed to the receiver 2, and the existing waterproof sheet 5 is fixed by the fixing plate fastener 4. Therefore, when using the fixing plate fastener 4 for renovating the existing waterproof sheet 5, the fixing plate fastener 4 can be fixed without newly perforating the base. Furthermore, since the existing fixed plate 3 is long and the receiving device 2 is arranged on the line along the existing fixed plate 3, positioning at the time of repair becomes easy. Thus, this modified example also has a waterproof sheet fixing structure suitable for repair work.

As a modification of the second embodiment, repair of the rising portion will be described with reference to FIG.
A notch is made at a position corresponding to the fixed plate fastener 4 of the existing waterproof sheet 5, the head of the fixed plate fastener 4 is exposed, and the fixed plate fastener 4 is removed. Next, the existing waterproof sheet 5 around the existing fixing plate 3 is cut, and the cut existing waterproof sheet 5 and the existing fixing plate 3 are removed from the support 2. Then, the repair fixing plate 7 is placed on the receiving tool 2, and the repair fixing plate 7 is fixed to the receiving tool 2 with the fixing plate fastener 4. Next, the repair waterproof sheet 8 is laid on the base 1 from the top of the existing waterproof sheet 5, the repair waterproof sheet 8 and the repair fixing plate 7 are joined, and the repair waterproof sheet 8 is fixed. The fixing plate 7 for repair and the waterproof sheet 8 for repair are joined by heat fusion. The fixing plate 7 for repair is formed in a rectangular plate shape like the existing fixing plate 3, and is formed in a long shape along the extending direction of the rising wall 10.
Here, in the present modification, the existing fixing plate 3 and the existing waterproof sheet 5 are removed, but the repair may be performed without removing any one or both of the existing waterproof sheets 5 of the existing fixing plate 3.

Next, the second and subsequent repair methods will be described. The second and subsequent repair methods are the same as in the second embodiment. The gist is that the fixing plate fastener is removed, the fixing plate for repair is fixed to the receiving device, and the waterproof sheet for repair is fixed with the fixing plate for repair. In the second and subsequent renovations, since the support is fixed to the base, the fixing plate can be placed in accordance with the support when fastening the fixed plate at the time of refurbishment. In addition, it is not necessary to drill new holes in the groundwork, reducing the man-hours and sound for repair work.
In the second repair (third construction method), the repair fixing plate 7 and the repair waterproof sheet 8 may be removed or left as in the first repair method. Also, the existing fixing plate 3 and the existing waterproof sheet 5 may be similarly removed or left.
Moreover, you may use either a front-end construction method or a post-attachment method also in the 2nd or subsequent renovation irrespective of the front-end construction method and the post-attachment construction method which were performed at the time of new construction and the first and subsequent renovation.

The second renovation (third construction method) in the case of a tip is explained. 3 (3-2), the repair waterproof sheet 8 around the repair fixing plate 7 is cut, the fixing plate fastener 4 is further removed, and the cut repair waterproof sheet 8 and the repair fixing plate 7 are received. Remove from 2. Then, a new fixing plate (not shown) is placed on the receiving tool 2. A new fixing plate (not shown) is fixed to the receiver 2 by a fixing plate fastener 4. Next, a new waterproof sheet (not shown) is laid on the base 1 from the modified waterproof sheet 8, the new waterproof sheet and a new fixing plate are joined, and the new waterproof sheet is fixed.
For joining the new fixing plate and the new waterproof sheet, heat fusion or solvent welding is used.

  The second renovation (third construction method) in the case of retrofitting will be described. In FIG. 4 (4-2), the repair waterproof sheet 8 and the repair reinforcement sheet 9 around the repair fixing plate 7 are cut, the fixing plate fastener 4 is removed, and the repaired waterproof sheet 8 and the repair reinforcement are cut. The sheet 9 for repair and the fixing plate 7 for repair are removed from the receiving tool 2. A new waterproof sheet (not shown) is laid from the top of the receiver 2. Then, a new fixing plate (not shown) is disposed on the new waterproof sheet 6 above the receiving device 2 and fixed to the receiving device 2 with the fixing plate fastener 4. A new reinforcing sheet is laid and fixed on the new waterproof sheet so as to cover the new fixing plate. For joining the periphery of the new reinforcing sheet and the new waterproof sheet 6, heat fusion, welding with a solvent, adhesion with an adhesive, or the like can be used.

  In the case where the repair is performed without removing the fixing plate as shown in FIGS. 6 and 7, the third and subsequent repairs can be performed in the same manner as the second repair. The fixing plate fastener 4 is removed, and the fixing plate for repairing is fixed to the receiving device 2 from the upper part of the fixing plate 2 which is already fixed, and the waterproof sheet for repairing is fixed by the fixing plate. To do.

The second repair (third construction method) in the case of the front-end of FIG. 6 (6-2) will be described. The fixing plate fastener is removed, and a new fixing plate (not shown) is disposed on the upper portion of the receiving device 2, and the new fixing plate is fixed to the receiving device 2 by the fixing plate fixing device 7. . Next, a new waterproof sheet (not shown) is laid on the base 1 from the modified waterproof sheet 8, the new waterproof sheet and 3 new fixing plates are joined, and the new waterproof sheet is fixed.
For joining the new fixing plate and the new waterproof sheet, heat fusion or solvent welding is used.

  A new repair (third construction method) in the case of the retrofit of FIG. 7 (7-2) will be described. The fixing plate fastener 4 is removed, and a new waterproof sheet (not shown) is laid on the repair reinforcement sheet 9, the repair waterproof sheet 8, and the receiver 2. Then, a new fixing plate (not shown) is arranged on the upper portion of the receiving tool 2, and the fixing plate is fixed by the fixing plate fastener 4. A new reinforcing sheet is laid and fixed on the new waterproof sheet so as to cover the new fixing plate. For joining the periphery of the new reinforcing sheet and the new waterproof sheet, fusion by heat, welding by a solvent, adhesion by an adhesive, or the like can be used. Then, a sealer (not shown) is applied around a new reinforcing sheet (not shown).

  The third and subsequent modifications (fourth construction) can be performed in the same manner as the second modification.

  The present invention is not limited to the embodiment described above, and can take various forms within the technical idea of the present invention.

DESCRIPTION OF SYMBOLS 1 Groundwork 2 Receptacle 3 Existing fixing board 5 Existing waterproof sheet 6 Existing reinforcement sheet 7 Repair fixing board 8 Repair waterproof sheet 9 Repair reinforcement sheet

Claims (10)

A receiving device struck by the groundwork,
An existing fixing plate disposed on the receptacle;
A fixing plate fastener that is detachably fixed to the receptacle through the existing fixing plate;
A waterproof sheet laid on the base and fixed by the existing fixing plate;
Waterproof sheet fixing structure with   The waterproof sheet fixing structure according to claim 1, wherein the waterproof sheet is laid on the existing fixing plate, and an upper surface of the existing fixing plate and a lower surface of the waterproof sheet are joined.   The existing fixing plate is fixed to the receiver by the fixing plate fastener from above the existing waterproof sheet laid on the base, and further includes a reinforcing sheet that covers the existing fixing plate and is joined to the waterproof sheet. The waterproof sheet fixing structure according to claim 1. A repair method for a waterproof sheet fixing structure according to any one of claims 1 to 3,
Removing the fixing plate fastener;
Arranging a fixing plate for repair on the receiver, passing the fixing plate fastener through the existing fixing plate, and fixing to the receiver;
Laying a repair waterproof sheet for repair from above the existing waterproof sheet;
Renovation method of waterproof sheet fixing structure with A repair method for a waterproof sheet fixing structure according to any one of claims 1 to 3,
Removing the fixing plate fastener;
Arranging a fixing plate for repair on the receiver, passing the fixing plate fastener through the existing fixing plate, and fixing to the receiver;
Laying a repair waterproof sheet for repair from above the existing waterproof sheet;
Renovation method of waterproof sheet fixing structure with A repair method for a waterproof sheet fixing structure according to any one of claims 1 to 3,
Removing the fixing plate fastener;
Laying a repair waterproof sheet for repair from above the existing waterproof sheet;
Arranging a repair fixing plate on the repair waterproof sheet, passing the fixing plate fastener through the repair fixing plate and the repair waterproof sheet, and fixing to the receiver;
Laying a repair reinforcement sheet on the repair fixing plate, and joining the repair waterproof sheet for repair and the repair reinforcement sheet;
Renovation method of waterproof sheet fixing structure with A repair method for a waterproof sheet fixing structure according to any one of claims 1 to 3,
Removing the fixing plate fastener;
Removing the existing fixing plate and a part of the existing waterproof sheet;
Laying a repair waterproof sheet for repair from above the existing waterproof sheet;
Arranging a fixing plate for repair from above the receiver, passing the fixing plate fastener through the existing fixing plate and fixing to the receiver;
Renovation method of waterproof sheet fixing structure with A repair method for a waterproof sheet fixing structure according to any one of claims 1 to 3,
Removing the fixing plate fastener;
Removing the existing fixing plate and a part of the existing waterproof sheet;
A step of arranging a fixing fixture for repair on the receiver, passing the fixing plate fastener through the existing fixing plate and fixing the fixing plate to the receiver;
Laying a repair waterproof sheet for repair on the existing waterproof sheet and the fixing plate for repair;
Joining the repair fixing plate and the repair waterproof sheet for repair;
Renovation method of waterproof sheet fixing structure with A repair method for a waterproof sheet fixing structure according to any one of claims 1 to 3,
Removing the fixing plate fastener;
Removing the existing fixing plate and a part of the existing waterproof sheet;
Laying a repair waterproof sheet for repair from above the existing waterproof sheet;
Arranging a repair fixing plate on the repair waterproof sheet, passing the fixing plate fastener through the repair fixing plate and the repair waterproof sheet, and fixing to the receiver;
Laying a repair reinforcement sheet on the repair fixing plate, and joining the repair waterproof sheet for repair and the repair reinforcement sheet;
Renovation method of waterproof sheet fixing structure with A method for further repairing the waterproof sheet fixing structure after the repair method for the waterproof sheet fixing structure according to any one of claims 4 to 9,
Removing the fixing plate fastener;
Arranging a new fixing plate on the receiver, passing the fixing plate fastener through the new fixing plate, and fixing to the receiver;
Laying a new tarpaulin on top of the repair tarpaulin;
Renovation method of waterproof sheet fixing structure with

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