JP6699156B2 - Existing outer wall repair structure and existing outer wall repair method - Google Patents

Description

  The present invention relates to a structure for repairing an existing outer wall and a method for repairing an existing outer wall.

  A method of repairing an existing outer wall in which a three-dimensional fiber material is attached to an existing outer wall, the three-dimensional fiber material is fixed by an anchor pin, and a new exterior material is further attached, and a repair structure formed by the above-described method are already well known.

JP, 9-317199, A

  In such a method and structure for repairing an existing outer wall, there is a step of stretching a three-dimensional fiber material and a new exterior material before and after the anchor pin is driven, and it takes a lot of time and labor in the field work. In addition, it took a long time to complete the construction because curing was required between the processes.

  The present invention has been made in view of the above conventional problems, and a main object thereof is to provide a repair structure and a repair method for an existing outer wall that facilitates on-site work.

The main invention is
An existing outer wall having an existing outer wall hole,
A new exterior material having a new exterior material hole, a three-dimensional fiber material having a three-dimensional fiber material hole, and a washer provided between the new exterior material and the three-dimensional fiber material and having a washer hole are integrated. An integrated repair material, which is a repair material, wherein the three-dimensional fiber material is located closer to the existing outer wall than the new exterior material,
An adhesive material that adheres the existing outer wall and the integrated repair material, and has an adhesive hole,
The existing outer wall hole, the adhesive material hole, the three-dimensional fiber material hole, a body portion driven into the washer hole, and a collar portion located in the new exterior material hole and in contact with the washer. Anchor pin,
It is a refurbished structure of an existing outer wall characterized by having
Other features of the present invention will become apparent from the description of this specification and the accompanying drawings.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the repair structure and repair method of the existing outer wall which the field work becomes easy.

It is the schematic diagram which showed the existing outer wall 10 (existing finishing layer 12) which concerns on this Embodiment. It is a schematic diagram for demonstrating the base mortar application process which concerns on this Embodiment. It is a schematic diagram for demonstrating the integrated repair material sticking process which concerns on this Embodiment. It is a schematic diagram for explaining the anchor pin driving step according to the present embodiment. It is a schematic diagram which showed the integrated repair material 30. It is the schematic diagram which showed the existing outer wall 10 (existing finishing layer 12) which concerns on a comparative example. It is a schematic diagram for demonstrating the base mortar application process which concerns on a comparative example. It is a schematic diagram for demonstrating the three-dimensional fiber material sticking process which concerns on a comparative example. It is a schematic diagram for demonstrating the anchor pin driving process which concerns on a comparative example. It is a schematic diagram for demonstrating the decorative molding sheet sticking process which concerns on a comparative example. It is a schematic diagram for demonstrating the hidden material accommodation process which concerns on other embodiment.

  At least the following matters will be made clear by the description in the present specification and the accompanying drawings.

An existing outer wall having an existing outer wall hole,
A new exterior material having a new exterior material hole, a three-dimensional fiber material having a three-dimensional fiber material hole, and a washer provided between the new exterior material and the three-dimensional fiber material and having a washer hole are integrated. An integrated repair material, which is a repair material, wherein the three-dimensional fiber material is located closer to the existing outer wall than the new exterior material,
An adhesive material that adheres the existing outer wall and the integrated repair material, and has an adhesive hole,
Anchor having the existing outer wall hole, the adhesive material hole, the three-dimensional fiber material hole, a body portion housed in the washer hole, and a collar portion located in the new exterior material hole and in contact with the washer. idea,
An existing outer wall refurbishment structure characterized by having.

  In such a case, the same purpose as performing the three-dimensional fiber material attaching step and the new exterior material attaching step can be achieved only by attaching the integrated repair material. Therefore, the time and effort required for field work can be reduced. Further, since it is not necessary to cure between the integrated repair material attaching step and the new exterior material attaching step, the time required to complete the construction can be shortened. Therefore, it is possible to provide a structure for repairing the existing outer wall, which facilitates on-site work.

A structure for refurbishing such an existing outer wall,
It is desirable that a concealing material for concealing the collar portion is provided in the new exterior material hole.

  In such a case, it is possible to improve the designability of the existing outer wall repair structure.

Next, a step of applying an adhesive to the existing outer wall,
A new exterior material having a new exterior material hole, a three-dimensional fiber material having a three-dimensional fiber material hole, and a washer provided between the new exterior material and the three-dimensional fiber material and having a washer hole are integrated. A step of attaching a repair material to the adhesive so that the three-dimensional fiber material is located closer to the existing outer wall than the new exterior material;
Anchor pins are sequentially inserted into the new exterior material hole, the washer hole, and the three-dimensional fiber material hole, and the existing state until the collar portion of the anchor pin is located in the new exterior material hole and contacts the washer. The process of driving into the outer wall,
A method for rehabilitating an existing outer wall, which comprises:

  In such a case, the same purpose as performing the three-dimensional fiber material attaching step and the new exterior material attaching step can be achieved only by attaching the integrated repair material. Therefore, the time and effort required for field work can be reduced. Further, since the curing between the integrated repair material attaching step and the new exterior material attaching step is not necessary, the time until the completion of construction can be shortened. Therefore, it is possible to provide a method for repairing an existing outer wall that facilitates on-site work.

A method of repairing such an existing outer wall,
A method for repairing an existing outer wall, comprising a step of accommodating a concealing material for concealing the collar portion in the new exterior material hole.

  In such a case, it is possible to improve the designability of the existing outer wall repair structure.

=== Remodeling method and structure of existing outer wall according to the present embodiment ===
A method of repairing an existing outer wall and a repair structure according to the present embodiment will be described with reference to FIGS. 1 to 5. FIG. 1 is a schematic diagram showing an existing outer wall 10 (existing finish layer 12) according to the present embodiment, and is a diagram showing a state before the method for repairing an existing outer wall according to the present embodiment is executed. .. FIG. 2 is a schematic diagram for explaining the base mortar coating step according to the present embodiment. FIG. 3 is a schematic diagram for explaining the integrated repair material attaching step according to the present embodiment. FIG. 4 is a schematic diagram for explaining the anchor pin driving step according to the present embodiment, and is a diagram showing a state after the completion of the method for repairing the existing outer wall. Further, FIG. 4 also shows a repair structure of the existing outer wall according to the present embodiment. FIG. 5 is a schematic diagram showing the integrated repair material 30.

  In the method for repairing the existing outer wall according to the present embodiment, the existing outer wall 10 of the building is left, and the surface is subjected to a pin net method (a method of attaching a fiber net and driving an anchor pin) to perform a new finish. Is the way. The existing outer wall repairing method includes a base mortar coating step, an integrated repair material sticking step, and an anchor pin driving step, and these steps are performed in this order. And if these processes are implemented, the repair structure of the existing outer wall will be formed. The details will be described below.

  FIG. 1 is a diagram showing an existing outer wall 10 (existing finishing layer 12). Here, as the existing outer wall 10, a tiled outer wall in which the existing tile 10b is attached to the existing concrete 10a will be described as an example, but the existing outer wall 10 is not limited to this, and any kind of existing outer wall 10 can be used. Good. For example, it may be a mortar-coated outer wall or a decorative molded sheet.

  First, as shown in FIG. 2, the worker applies a base mortar 20 (polymer cement mortar) as an example of an adhesive to the existing outer wall 10 (existing finishing layer 12) (base mortar applying step). The base mortar 20 is an adhesive for attaching the integrated repair material 30 in the next step.

  Next, as shown in FIG. 3, the worker attaches the integrated repair material 30 to the underlying mortar 20 immediately after the application of the underlying mortar 20 (integrated repair material attaching step).

  Here, the integrated repair material 30 will be described with reference to FIG. The integrated repair material 30 includes a three-dimensional fiber material 32 (fiber net), a stone-like decorative molding sheet (hereinafter simply referred to as a decorative molding sheet 34) as an example of a new exterior material, a three-dimensional fiber material 32, and a decorative molding. A washer 36 is provided between the seat 34 and the seat 34. That is, the integrated refurbishment material 30 is formed by adhering the three members together with an organic adhesive or the like in a state where the washer 36 is sandwiched between the three-dimensional fiber material 32 and the decorative molding sheet 34. The integrated repair material 30 is manufactured in advance at a factory, not at a construction site.

  Further, the washer 36 is provided with a hole (for convenience, referred to as a washer hole 36a) in advance, but a hole (for convenience, a position corresponding to the washer hole 36a of the three-dimensional fiber material 32 and the decorative molding sheet 34 is also provided. A three-dimensional fiber material hole 32a and a decorative molding sheet hole 34a as an example of a new exterior material hole) are provided. That is, in the integrated repair material 30, holes are provided in advance in the three-dimensional fiber material 32, the washer 36, and the decorative molding sheet 34, and these holes are located at the same position on the surface of the integrated repair material 30. Is located in. An anchor pin 40, which will be described later, can be inserted into these holes. Note that a plurality of holes are provided at predetermined intervals so that a plurality of anchor pins 40 can be inserted.

  In the integrated repair material attaching step, such an integrated repair material 30 is attached to the base mortar 20 (in other words, to the existing outer wall 10 via the base mortar 20). At this time, the integrated repair material 30 is bonded so that the three-dimensional fiber material 32 is located closer to the existing outer wall 10 than the decorative molding sheet 34. That is, not the surface side of the decorative molded sheet 34, but the side of the three-dimensional fiber material 32 is attached to the base mortar 20.

  Next, the worker drives the anchor pin 40 as shown in FIG. 4 (anchor pin driving process). The anchor pin 40 includes a body portion 40a and a collar portion 40b having a diameter (diameter) larger than that of the body portion 40a and located at the tip of the anchor pin 40.

  First, the operator punches the base mortar 20 and the existing outer wall 10, and at this time, corresponds to the above-mentioned holes (three-dimensional fiber material hole 32a, decorative molding sheet hole 34a, washer hole 36a) of the integrated repair material 30. The holes are formed at the desired positions (the holes formed by the holes are referred to as the base mortar holes 20a and the existing outer wall holes 10c, which are examples of the adhesive holes). That is, the base mortar 20 and the existing outer wall are arranged so that the three holes of the integrated repair material 30, the base mortar hole 20a, and the existing outer wall hole 10c are aligned in a straight line (and in the normal direction of the surface of the decorative molding sheet 34). Make a hole in 10.

  After the perforation, the worker inserts the anchor pin 40 into the decorative molded sheet hole 34a, the washer hole 36a, the three-dimensional fiber material hole 32a, the base mortar hole 20a, and the existing outer wall hole 10c in order. Then, the anchor pin 40 is driven into the existing outer wall 10 until (at least a part of) the collar portion 40b of the anchor pin 40 comes into contact with the washer 36 in a state of being located inside the decorative molded sheet hole 34a. That is, the diameter (diameter) of the collar portion 40b is larger than the diameter (diameter) of the washer hole 36a, but smaller than the diameter (diameter) of the decorative molded sheet hole 34a. Therefore, when the anchor pin 40 is driven, the collar portion 40b can enter into the decorative molded sheet hole 34a. Finally, the back side surface of the collar portion 40b comes into contact with the washer 36, and the three-dimensional fiber material 32 can be pressed against the existing outer wall 10 by the anchor pin 40. In this step, the method for repairing the existing outer wall is completed, and the new exterior material (decorative molding sheet 34) is applied to the existing outer wall 10. A plurality of anchor pins 40 are inserted at a predetermined interval.

=== Effectiveness of the existing outer wall repair structure and repair method according to the present embodiment ===
Next, the effectiveness of the method and structure for modifying the existing outer wall according to the present embodiment will be described. Prior to the description, a comparative example will be described first, and the effectiveness will be described in comparison with the comparative example.

<<<Repair structure and repair method of existing outer wall according to comparative example>>>
FIG. 6 is a schematic diagram showing the existing outer wall 10 (existing finishing layer 12) according to the comparative example, and is a view showing a state before the method for repairing the existing outer wall according to the comparative example is executed. FIG. 7 is a schematic diagram for explaining a base mortar coating step according to a comparative example. FIG. 8: is a schematic diagram for demonstrating the three-dimensional fiber material sticking process which concerns on a comparative example. FIG. 9 is a schematic diagram for explaining an anchor pin driving step according to a comparative example. FIG. 10 is a schematic diagram for explaining the decorative molded sheet attaching step according to the comparative example, and is a diagram showing a state after the completion of the method for repairing the existing outer wall. Further, FIG. 10 also shows a repair structure of the existing outer wall according to the comparative example.

  Similarly to the above-described embodiment (hereinafter also referred to as the present example), the method for repairing the existing outer wall according to the comparative example also leaves the existing outer wall 10 of the building, and the pin net construction method (attachment of fiber net and anchor pin This is a method of applying a construction method by driving in and applying a new finish. Unlike the present example, the existing outer wall repairing method includes a base mortar applying step, a three-dimensional fiber material attaching step, an anchor pin driving step, and a decorative molded sheet attaching step, and these steps are performed in this order. And if these processes are implemented, the repair structure of the existing outer wall will be formed. The details will be described below.

  FIG. 6 is a view showing the existing outer wall 10 (existing finishing layer 12), which is similar to FIG. 1 of the present example. First, as shown in FIG. 7, the worker applies the base mortar 20 (polymer cement mortar) to the existing outer wall 10 (existing finishing layer 12) (base mortar applying step). This step is similar to the step shown in FIG. 2 of the present example.

  Next, as shown in FIG. 8, the worker applies the three-dimensional fiber material 132 (fiber net) to the underlying mortar 20 immediately after applying the underlying mortar 20 (three-dimensional fiber material applying step). In the comparative example, unlike the present example, the three-dimensional fiber material is not integrated with the washer or the decorative molded sheet. That is, the three members are separated and attached individually. When the three-dimensional fiber material 132 is attached, the three-dimensional fiber material 132 should not be completely buried in the base mortar 20. That is, the three-dimensional fiber material 132 is laid down on the base mortar 20 so that a part of the surface side of the three-dimensional fiber material 132 is exposed from the base mortar 20 (in other words, napped).

  Next, as shown in FIG. 9, the worker, after curing, fixes the three-dimensional fiber material 132 to the existing outer wall 10 with the anchor pin 40 (anchor pin driving step). That is, a hole is drilled at a predetermined position, and the anchor pin 40 is inserted into the hole. A plurality of anchor pins 40 are inserted at a predetermined interval. The anchor pin 40 is inserted so as to pass through the three-dimensional fiber material 132, the base mortar 20, and the existing outer wall 10 (existing finish layer 12), whereby the three-dimensional fiber material 132 can be pressed against the existing outer wall 10. In addition, in FIG. 9, a member indicated by reference numeral 136 is a washer.

  Next, as shown in FIG. 10, the worker attaches the decorative molding sheet 134 to the three-dimensional fiber material 132 with an organic adhesive or the like (decorative molding sheet bonding step). In this step, the method for repairing the existing outer wall is completed, and the new exterior material (decorative molding sheet 134) is applied to the existing outer wall 10.

<<< Effectiveness of the existing outer wall repair structure and repair method according to the present embodiment>>
As described above, the renovation structure of the existing outer wall according to the present embodiment has the existing outer wall 10 including the existing outer wall hole 10c, the decorative molding sheet 34 including the decorative molding sheet hole 34a, and the three-dimensional fiber material hole 32a. An integrated repair material 30 in which a fiber material 32 and a washer 36 having a washer hole 36a located between the decorative molded sheet 34 and the three-dimensional fiber material 32 are integrated, and the three-dimensional fiber material 32 is a decorative molded sheet. The integrated repair material 30 located closer to the existing outer wall 10 than 34, the existing outer wall 10 and the integrated repair material 30 are bonded, and the base mortar 20 having the base mortar hole 20a and the existing outer wall hole 10c, An anchor pin 40 having a base mortar hole 20a, a three-dimensional fiber material hole 32a, a body portion 40a housed in a washer hole 36a, and a collar portion 40b located in the decorative molding sheet hole 34a and in contact with the washer 36. , And.

  In addition, the method for repairing the existing outer wall according to the present embodiment includes a step of applying the base mortar 20 to the existing outer wall 10, a decorative molding sheet 34 having the decorative molding sheet holes 34a, and a three-dimensional fiber having three-dimensional fiber material holes 32a. The material 32 and the integrated repair material 30 in which the washer 36 located between the decorative molded sheet 34 and the three-dimensional fiber material 32 and having the washer holes 36a are integrated are provided. The step of sticking the anchor pin 40 to the base mortar 20 so that the anchor pin 40 is located closer to the existing outer wall 10, and the anchor pin 40 is sequentially inserted into the decorative molding sheet hole 34a, the washer hole 36a, and the three-dimensional fiber material hole 32a. The step of driving the collar 40b into the existing outer wall 10 until it comes into contact with the washer 36 in a state where the collar 40b is located in the decorative molded sheet hole 34a.

  Therefore, it is possible to provide a repair structure and a repair method for an existing outer wall that facilitates on-site work.

  In the method and structure for repairing the existing outer wall according to the comparative example, the step of stretching the three-dimensional fiber material 132 and the decorative molding sheet 134 before and after the anchor pin driving step (that is, the three-dimensional fiber material bonding step and the decorative molding sheet bonding step) Existed, and it took a lot of time and labor in the field work. In addition, it took a long time to complete the construction because curing was required between the processes.

  On the other hand, the existing outer wall repairing method and structure according to the present embodiment have one less process than the comparative example. That is, the same purpose as performing the three-dimensional fiber material attaching step and the decorative forming sheet attaching step can be achieved by merely attaching the integrated repair material 30. Thus, by introducing the integrated repair material attaching step instead of the three-dimensional fiber material attaching step and the decorative molding sheet attaching step, the labor in the field work can be reduced. Further, since the curing between the integrated repair material attaching step and the three-dimensional fiber material attaching step is not necessary, the time until the completion of construction can be shortened. As described above, according to the existing outer wall repairing method and structure according to the present embodiment, it is possible to provide the existing outer wall repairing structure and method that facilitates on-site work.

  Further, in the method and structure for repairing the existing outer wall according to the comparative example, since the three-dimensional fiber material 132 and the decorative molding sheet 134 are separated, both of them are bonded at the construction site. In this case, another anchor pin different from the anchor pin 40 may be further attached after the decorative molding sheet 134 is attached in consideration of the fact that the two may not be surely adhered to each other depending on the skill level of the worker at the construction site. In some cases, an additional step of hitting the decorative molded sheet 134 and stopping the decorative molded sheet 134 on the three-dimensional fiber material 132 was performed.

  On the other hand, in the existing outer wall repairing method and structure according to the present embodiment, the three-dimensional fiber material 32 and the decorative molding sheet 34 are integrated in advance, and there is no need to bond the two together at the construction site (in the factory, Since both of them are firmly adhered at the time of manufacturing), such an additional step is not necessary, and in this respect, the field work is also simplified.

  Further, in the method and structure for repairing the existing outer wall according to the comparative example, it is necessary for the worker to carefully select an appropriate driving position when driving the anchor pin 40.

  On the other hand, in the method and structure for repairing the existing outer wall according to the present embodiment, the anchor pin 40 may be driven into the decorative molded sheet hole 34a (since the position to be driven is determined in advance). It is not necessary to select the position, and this also simplifies on-site work.

=== Other Embodiments ===
The above embodiment is for facilitating the understanding of the present invention and is not for limiting the interpretation of the present invention. It goes without saying that the present invention can be modified and improved without departing from the spirit thereof and that the present invention includes equivalents thereof. In particular, the embodiments described below are also included in the present invention.

  In the above embodiment, the decorative molded sheet 34 is described as an example of the new exterior material, but the present invention is not limited to this. For example, it may be a tile.

  Further, in the above-described embodiment, the base mortar 20 is described as an example of the adhesive material for adhering the integrated repair material 30 to the existing outer wall 10, but the adhesive material is not limited to this. For example, a urethane resin-based or modified silicone-based organic adhesive may be used.

  In addition, in the above-described embodiment, the method of repairing the existing outer wall is completed in the anchor pin driving step. Therefore, although the collar portion 40b of the anchor pin 40 is buried in the decorative molded sheet hole 34a as shown in FIG. 4, it is in an exposed state (a state visible from the outside).

  Although such an embodiment may be adopted, a step of accommodating a concealing material for concealing the collar portion 40b may be added to the decorative molded sheet hole 34a. That is, the decorative molded sheet hole 34a may be provided with a concealing material for concealing the collar portion 40b.

  FIG. 11 is a schematic diagram for explaining the concealing material accommodating step according to another embodiment, and is a diagram showing a state after the completion of the method for repairing the existing outer wall according to another embodiment. In addition, FIG. 11 also shows a repair structure of an existing outer wall according to another embodiment. As the hidden material, the dedicated cap 50 is shown in FIG. 11, but it may be realized by painting. The pattern and color of the surface of the special cap 50 and the coating are preferably the same as the pattern and color of the surface of the decorative molding sheet 34.

  By doing so, it becomes possible to improve the designability of the existing outer wall repair structure.

10 Existing Outer Wall 10a Existing Concrete 10b Existing Tile 10c Existing Outer Wall Hole 12 Existing Finishing Layer 20 Base Mortar 20a Base Mortar Hole 30 Integrated Repair Material 32 Solid Fiber Material 32a Solid Fiber Material Hole 34 Decorative Molding Sheet 34a Decorative Molding Sheet Hole 36 Washer 36a Washer hole 40 Anchor pin 40a Body part 40b Collar part 50 Dedicated cap 132 Three-dimensional fiber material 134 Decorative molding sheet 136 Washer

Claims (4)

An existing outer wall having an existing outer wall hole,
A new exterior material having a new exterior material hole, a three-dimensional fiber material having a three-dimensional fiber material hole, and a washer provided between the new exterior material and the three-dimensional fiber material and having a washer hole are integrated. An integrated repair material, which is a repair material, wherein the three-dimensional fiber material is located closer to the existing outer wall than the new exterior material,
An adhesive material that adheres the existing outer wall and the integrated repair material, and has an adhesive hole,
The existing outer wall hole, the adhesive material hole, the three-dimensional fiber material hole, a body portion driven into the washer hole, and a collar portion located in the new exterior material hole and in contact with the washer. Anchor pin,
An existing outer wall refurbishment structure characterized by having. The existing outer wall repair structure according to claim 1,
A structure for repairing an existing outer wall, wherein a concealing material for concealing the collar portion is provided in the new exterior material hole. A step of applying an adhesive to the existing outer wall,
A new exterior material having a new exterior material hole, a three-dimensional fiber material having a three-dimensional fiber material hole, and a washer provided between the new exterior material and the three-dimensional fiber material and having a washer hole are integrated. A step of attaching a repair material to the adhesive so that the three-dimensional fiber material is located closer to the existing outer wall than the new exterior material;
Anchor pins are sequentially inserted into the new exterior material hole, the washer hole, and the three-dimensional fiber material hole, and until the collar portion of the anchor pin is located in the new exterior material hole and comes into contact with the washer, Driving into an existing outer wall hole pre-drilled in the existing outer wall ;
A method for rehabilitating an existing outer wall, which comprises: The method for repairing an existing outer wall according to claim 3,
A method for repairing an existing outer wall , comprising a step of boring the adhesive material and the existing outer wall at positions corresponding to the three-dimensional fiber material hole, the new exterior material hole, and the washer hole .

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