JP4105925B2 - Exterior wall repair method - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a building exterior wall repair device in which an existing exterior wall material is composed of an ALC exterior wall material or the like.
[0002]
[Prior art]
ALC outer wall materials such as cellular concrete or lightweight cellular concrete are building materials excellent in heat insulation, sound insulation and fire resistance, and are widely spread as outer wall materials, partition wall materials, floor materials, and roof materials.
[0003]
If these existing exterior wall materials deteriorate, a method of replacing them with new exterior wall materials can be considered, but this is not a good measure in terms of adverse effects on the surrounding area (dust, noise, danger), waste material treatment, and construction costs.
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 11-93374 [Patent Document 2]
Japanese Patent Laid-Open No. 2002-138649
In order to solve the above-mentioned problems, for example, Patent Documents 1 and 2 have been developed as a method for attaching a new outer wall material to the surface of an existing outer wall material and maintaining the characteristics of the existing outer wall material while maintaining the building surface cleanly. Has been.
[0006]
Patent Documents 1 and 2 of the prior art have a structure in which a hole is formed in an existing outer wall material, a fixed base material is attached to a base steel frame (beam web) of the existing outer wall material, and a new outer wall material is attached to the fixed base material. The foundation steel frame of the existing outer wall material cannot be found well, the hole of the foundation steel frame is perforated to reduce the strength of the existing foundation, the beam web that becomes the foundation steel frame is deep, the fixed foundation does not reach, etc. There was a case that the problem of.
[0007]
[Problems to be solved by the invention]
In order to solve such problems, the present invention provides a repair device that receives a support fitting for attaching a new outer wall material to the outside of the existing outer wall material with the existing outer wall material so as not to damage the existing outer wall material. The purpose is that.
[0008]
[Means for Solving the Problems]
Insert the support fitting through the cored hole that penetrates the existing outer wall material, face the front and back plates of the support fitting between the front and back surfaces of the existing outer wall material, and penetrate the existing outer wall material A from the front plate to the back surface. It is fixed by screws inserted into the plate, a rib plate is abutted or fixed to the outside of the surface plate, and a base material such as a vertical trunk edge or a horizontal trunk edge is abutted or fixed on the rib plate. Thus, a method for repairing an outer wall material to which a new outer wall material is attached is provided.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Below, the repair method of the outer wall material which concerns on this invention is demonstrated using drawing. As shown in FIGS. 1 and 2 (a) to 2 (c), the support metal fitting 2 includes a square surface plate 3 having a side of 50 mm and a circular back plate 4 having a diameter of 50 mm at both ends, and a bridge having a rectangular cross section near the upper end. The central vertical cross section connected by the plate 5 is a U-shaped plate, and extends from the outer surface plate 3a to the outer plate 4a through the existing outer wall material A (existing ALC outer wall material that requires refurbishment, etc.). A variety of female screw mechanisms 7 into which the screws 8 can be fitted are processed in the through-hole 6 opened in advance, and in particular, the back plate 4. D is a frame of the existing outer wall material.
[0010]
3 and 4 show the base material B, FIG. 3 shows a rib plate B1, and FIG. 4 shows a base material B2 such as a vertical trunk edge or a horizontal trunk edge. The base material B is a base on which a new outer wall material C to be described later is applied.
[0011]
5-12 is explanatory drawing which shows a construction order. As shown in FIGS. 5 and 8, the cored hole 1 and the through hole 6 are formed in a predetermined place on the surface A1 of the existing exterior material with a φ50 hole saw and a φ10 hole. The cored hole 1 is inserted from the back plate 4 side of the support fitting 2 and dropped perpendicularly to the back surface A2 of the existing outer wall material A, and the screw 8 is passed through the through hole 6 from the outer surface plate 3a to the female screw mechanism 7 of the back plate. Fix it.
[0012]
When the fixing of the support bracket 2 is completed, the core 1a of the existing outer wall material A that has been removed is returned to its original position, a sealing material 10 (fireproof bond, ALC dedicated repair material, etc.) is injected into the gap, and a water stop treatment is performed. A fixed base on which the material B is applied is formed.
[0013]
Further, if necessary, although not shown, a rubber pad for unevenness adjustment is attached to the outer surface plate 3a to adjust unevenness with the base material B.
[0014]
FIG. 6 is an explanatory view showing a partially enlarged cross-section of the repair device 9 using the support fitting 2 of the present invention. The screw 8 is inserted into the through hole 6 from the outer surface plate outer side 3a toward the rear surface plate outer side 4a. A female screw mechanism 7 having a burring process 12 is formed below the back plate, thereby facilitating fitting and stability.
[0015]
The female screw mechanism 7 by the burring process 12 can process the back plate 4 main body as it is as shown in FIG. 6, but as shown in FIGS. It can also be formed and integrated with the back plate 4. 15 (a) to 15 (f), (a) is an inverted T type with an inner screw processed, (b) is a fallen H type with an inner screw, and (c) is a T with an inner screw processed. (D) is a tapered inverted T type, (e) is a tapered T type, and (f) is an inverted T type with internal and external threads.
[0016]
FIG. 7 shows a central longitudinal section of the repair device 9, but the screw 8 penetrates the existing outer wall material A to ensure the positioning of the repair device 9. In the embodiment, an example is shown in which the through-hole 6 is formed vertically downward, but it can be formed at an arbitrary position near the circumference around the core 1a.
[0017]
13 and 14 show another embodiment of the support fitting 2 used as a method for repairing an existing outer wall material according to the present invention.
[0018]
As shown in FIG. 10, the rib plate B1 is fixed to the outer surface plate 3a of the support fitting 2 via a fixture, and a base material B2 such as a vertical trunk edge or a horizontal trunk edge to be described later is used as the existing outer wall material A. In order to avoid interference (adverse effects) due to unevenness (non-land), painting conditions, decoration of tiles, etc., unevenness adjustment is performed.
[0019]
The figure shows a structure in which the base material B2 such as a vertical body edge or a horizontal body edge is formed vertically, and when it is formed horizontally, it is fixed by rotating 90 °. Of course, the construction direction of the base material B is determined depending on whether the new outer wall material C is horizontal or vertical. In addition, as a dimension of rib plate B1, plate | board thickness is 4.5 mm, 100 mm long x 100-120 mm wide, and rib depth is about 10-12 mm.
[0020]
As shown in FIG. 11, the base material B2 such as a vertical trunk edge or a horizontal trunk edge is formed on the rib plate B1 in several numbers, and functions as a construction base for the new outer wall material C.
[0021]
【The invention's effect】
As described above, according to the method for repairing an outer wall material according to the present invention, (1) since it is not necessary to dismantle the existing existing outer wall material, there is no problem in shortening the construction period, suspending residence or use, and the like. (2) It can be used for prefabricated houses. (3) Since it has a double wall structure consisting of an existing wall and a new wall, it has excellent heat insulation, soundproofing and fireproofing properties. {Circle around (4)} It can also be used for light steel structures and thin ALC (50 to 37 mm) buildings with wooden frame. (5) The load on the existing outer wall material can be minimized, and the mounting strength of the new outer wall material can be sufficiently secured. (6) By using the mounting guide, a stable support bracket can be constructed. (7) Since it is a renovation that leaves the existing outer wall material, the problem of fire prevention performance standards can be cleared. (8) It is not affected by the position of the structural frame of the existing outer wall material. (9) Since the thermal bridge does not reach the structural frame, it is easy to obtain individual recognition as a composite wall. There are features and effects.
[Brief description of the drawings]
FIG. 1 is an explanatory view showing a representative example of a repair device used in a method for repairing an existing outer wall material according to the present invention.
FIG. 2 is an explanatory view showing a representative example of a repair device used in a method for repairing an existing outer wall material according to the present invention.
FIG. 3 is an explanatory view showing a typical example of a base material used in the method for repairing an existing outer wall material according to the present invention.
FIG. 4 is an explanatory view showing a representative example of a base material used in the method for repairing an existing outer wall material according to the present invention.
FIG. 5 is an explanatory view showing a construction state of a method for repairing an existing outer wall material according to the present invention.
FIG. 6 is an explanatory view showing a construction state of a method for repairing an existing outer wall material according to the present invention.
FIG. 7 is an explanatory diagram showing a construction state of a method for repairing an existing outer wall material according to the present invention.
FIG. 8 is an explanatory view showing a construction state of the method for repairing an existing outer wall material according to the present invention.
FIG. 9 is an explanatory view showing a construction state of the method for repairing an existing outer wall material according to the present invention.
FIG. 10 is an explanatory view showing a construction state of the method for repairing an existing outer wall material according to the present invention.
FIG. 11 is an explanatory view showing a construction state of a method for repairing an existing outer wall material according to the present invention.
FIG. 12 is an explanatory view showing a construction state of the method for repairing an existing outer wall material according to the present invention.
FIG. 13 is an explanatory view showing another embodiment of the repair device used in the repair method of the existing outer wall material according to the present invention.
FIG. 14 is an explanatory view showing another embodiment of the repair device used for the repair method of the existing outer wall material according to the present invention.
FIG. 15 is an explanatory view showing another embodiment of the burring process of the repair device.
[Explanation of symbols]
A Existing exterior wall material A1 Surface of existing exterior wall material A2 Back surface of existing exterior wall material B Base material B1 Rib plate B2 Base material C such as vertical or horizontal trunk edge New exterior wall material D Frame of existing exterior wall material 1 Core hole 1a Core 2 Support metal fitting 3 Surface plate 3a Surface plate outside 4 Back plate 4a Back plate outside 5 Bridge plate 6 Through hole 7 Female screw mechanism 8 Screw 9 Repair device 10 Sealing material 11 Stopper piece 12 Burring processing

Claims (1)

Insert the support fitting from the core hole that penetrates the existing outer wall material, and face the surface plate of the support fitting and the back plate connected by the bridge plate at the upper end of the surface plate to the front and back sides of the existing outer wall material, The screw is fixed to the female screw mechanism formed on the back plate from the hole formed in the surface plate through the through hole formed in the existing outer wall material, and the rib plate is abutted or fixed to the outside of the surface plate. A method of repairing an outer wall material, characterized in that a base material such as a vertical trunk edge or a horizontal trunk edge is brought into contact with or fixed to the base material, and a new outer wall material is attached to the base material.

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