JPH1181700A - Renovation structure for alc outer wall - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure efficiently renovating an ALC outer wall while improving strength and a beautiful appearance. SOLUTION: A through hole C is formed at the position where an H-steel A serving as the fitting substrate of an existing ALC outer wall B is arranged, and a connecting substrate material D formed with a base substrate material and an extension substrate material is inserted into the through hole C. One end section of the connecting substrate material D is pinched between the upper and lower flanges of the H-steel A, the other end is protruded on the surface of the ALC outer wall B, a furring strip E arranged on the surface of the ALC outer wall B is fixed, and a new dry wall material F is fixed to the furring strip E. Dwelling is not impaired during the work, execution is easy, fitting strength is assured, and the length of the connecting substrate material D itself can be adjusted. The difference of the thickness of the ALC outer wall B and an irregularity adjustment can be coped with, and the beautiful appearance and work execution property of the finish stretching of the new dry wall material F can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for repairing an existing outer wall composed of an ALC outer wall (lightweight cellular concrete) of a building or a building with a new outer wall.

[0002]

2. Description of the Related Art Conventionally, the renovation of an outer wall using an ALC outer wall has a structure in which all the old ALC outer walls are removed and a new outer wall is formed on a wall base material such as an existing skeleton or a rim. A new dry wall material is directly in contact with the outer wall surface of the ALC, and the dry wall material is fixed to the ALC using a fixture such as a concrete anchor.
A structure modified by using the LC wall itself as a wall base material is generally known.

[0003]

However, as described above, all of the old ALC outer walls that have become old have been removed,
In a structure in which a new outer wall is formed on the existing base material such as the skeleton and the rim, the cost for removal is enormous, and there is no outer wall during construction, living in the building during the construction period, Alternatively, there has been a problem that it is impossible to work or use the inside of the building. In addition, in the structure where the ALC outer wall is used as it is as a wall base material and a new wall material is constructed, the old ALC outer wall is cracked, partially dropped, and deteriorated in strength due to frost damage and aging due to its properties. However, the use of this as a wall foundation has a problem with the strength of the new wall material attached, and has a risk of falling off or peeling off due to an external impact such as a typhoon or an earthquake. Furthermore, the surface of the ALC outer wall has irregularities, and if the new outer wall is constructed as it is, it is difficult to adjust the unevenness due to the irregularities, and irregularities also occur on the raised new wall surface,
The appearance was also poor.

[0004]

According to the present invention, in order to eliminate such a drawback, a through hole is formed at a position where an H-shaped steel material serving as a base material of an existing ALC outer wall is provided, and the through hole is formed. , A connecting base material formed of two members, a base base material and an extended base material, is inserted, and one end of the connecting base material is set to H.
A structure in which a new dry-wall material is fixed to the ALC outer wall surface by fixing the body to the ALC outer wall surface, fixing the other end to the ALC outer wall surface, fixing the new dry wall material to the ALC outer wall surface. Therefore, the construction is easy and the installation strength is ensured without damaging the living room during construction, and since the connecting base material is formed by connecting two members, the length of the connecting base material itself can be adjusted to some extent, Even if the thickness of the existing ALC outer wall is different, it is possible to cope with the same connecting base material, and it is easy to adjust the unevenness, so that the aesthetic appearance and workability of the new dry-wall material are improved. It proposes a repair structure for the ALC outer wall.

[0005]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of an ALC outer wall repairing structure according to the present invention. FIG. 1 is a perspective view showing a typical example of the above-mentioned ALC outer wall repair structure, and FIG. 2 is an explanatory view showing a cross-sectional view thereof. A is an H-shaped steel material serving as a base material for mounting a building frame and an ALC outer wall B. As shown in the figure, this is a general one comprising upper and lower flanges 1 and 2 and a web 3 connecting between the flanges 1 and 2, and is arranged in a horizontal direction.

Reference numeral B denotes an existing ALC outer wall, which is fixed to the upper flange 1 and the lower flange 2 of the H-shaped steel member A by bolts and nuts α via angles a and Z clips b as shown in FIG. Is what it is. FIG. 2 shows the mounting of a general vertical ALC outer wall B, and there are various other mounting methods of the ALC, and the present invention is not limited to this. Further, c is a filling joint material to be filled in a joint portion of the ALC outer wall B for vertical stretching, and a makeup (not shown) is applied to the surface of the ALC outer wall B with a decorative covering member (paint or the like). Things.

Reference numeral C denotes a through hole formed in the ALC outer wall B. The through hole is formed on the ALC outer wall B from the surface side of the ALC outer wall B at a constant pitch along a disposition position of the base material A using a device such as a hole saw. Is what you do. The through hole C functions as a path for inserting a connecting base material D described later, and its shape and size are arbitrary as long as the connecting base material D can be easily inserted and filled. In addition, AL
By forming the through hole C in the C outer wall B, the constructor can directly check the H-shaped steel material A visually from the surface side of the ALC outer wall B. Installation is secure.

Reference numeral D denotes a connecting base material which is inserted into a through hole C formed in the ALC outer wall B, one end of which is sandwiched and fixed between the upper and lower flanges 1 and 2 of the H-shaped steel material A, and the other end of which is described later. The H-shaped steel material A, which serves as a base material for mounting the ALC outer wall B, and the body edge E, which serves as a base material for mounting a new dry wall material F, are fixed to the body edge E, and the dry wall material F is mounted. This is to prevent the deterioration of the strength.

The shape of the connecting base material D is composed of two members: a base base material D1 shown in FIG. 3 and an extended base material D2 shown in FIG. 5, and the material is excellent in strength. Made of various steel materials, iron plates, stainless steel plates, aluminum materials and the like.

The base material D1 shown in FIG. 3 is formed by connecting upper and lower upper pedestals 4 and lower pedestals 5, and left and right left pedestals 6, right pedestals 7, and frame members 8 with pins 9. Moreover, while connecting the left pedestal 6 and the right pedestal 7 horizontally with the bolt 10,
A nut 11 is attached to a tip of a bolt 10.

Further, as shown by arrows in FIGS. 4A and 4B, a bolt 10 and left and right pedestals 6 and right pedestals 7 are provided.
Are formed with screw grooves, and each pedestal expands and contracts when the bolt 10 is rotated.

The extension base material D2 shown in FIG. 5 has an arbitrary cross-sectional shape, for example, a short U-shaped extension bar material 14 comprising a tongue piece 12 and a flat portion 13 in the figure, and a rod-like extension bolt on the back surface of the flat portion 13. 15 are integrally fixed by means such as welding or various adhesives. The extension bolt 15
Is formed with a spiral screw groove at the tip thereof.

The base substrate D1 and the extended substrate D2
1 and 2, as shown in FIG. 1 and FIG.
A nut 11 attached to the tip of one bolt 10
This is performed by screwing the extension bolt 15 of the extension base material D2.

The connected base material D thus connected and integrated is rotated by rotating the nut 11 so that
The length of the connection base material D itself can be adjusted to some extent. This can be achieved, for example, by using the same connecting base material D for the difference in the thickness of the ALC outer wall B, and at the same time as the mounting base material A for the ALC outer wall B and the body edge E serving as the mounting base for the new dry-type wall material F. When concatenating
It is possible to easily adjust uneven ground.

Further, as shown in FIGS. 1 and 2, the connection base material D is fixed to the H-shaped steel material A through a through hole C formed in the ALC outer wall B from the surface side of the ALC outer wall B. D
And the bolt 10 of the connecting base material D is sandwiched between the upper flange 1 and the lower flange 2 of the H-shaped steel material A such that the upper base 4 and the lower base 5 of the connecting base material D are sandwiched. The upper pedestal 4 and the lower pedestal 5 of the connecting base material D are rotated to press the upper flange 1 and the lower flange 2 of the H-shaped steel material A, thereby mounting the connection base material D.

In this method, the connecting base material D can be attached to the thick H-shaped steel material A without the troublesome and time-consuming driving of fixing tools such as screws and texes, thereby facilitating construction. It is.

Reference numeral E denotes a body edge, which is welded to the tip of the connecting base material D projecting from the surface of the ALC outer wall B as shown in FIGS. It is attached by a fixing means such as a fixing tool β such as an adhesive, a bolt-nut α, a screw, and a tex, and functions as a mounting base for a dry wall material F described later.

At this time, the extension bar member 14 is fixed so that the tip of the extension bar member 14 does not protrude from the surface of the rim E so as not to hinder the installation of the dry wall member F. In addition to the tongue piece 12 of the extension bar material 14, the body edge E has
It is also possible to install and mount on 3. Further, the body edge E has a space between the ALC outer wall B and the dry wall material F due to its thickness, functions as a flow passage for fresh air and the like, and can be effectively used for corrosion prevention and the like. It is.

Further, when fixing the body edge E to the tip of the connecting base material D, the length of the connecting base material D is adjusted so that unevenness is eliminated by adjusting the nut 11 of the connecting base material D. Things. As shown in FIGS. 1 and 2, the rim E is in the vertical direction (vertical direction) when the dry wall material F is a horizontal type, and when the dry wall material F is a vertical type (not shown). Is horizontal (horizontal)
Are arranged at an arbitrary pitch along the line.

The shape of the body edge E is, for example, as shown in FIG. 6, made of a long bar material having an arbitrary cross-sectional shape (for example, a short L-shape in the figure), and the material is excellent in strength. Made of various steel materials, iron plates, stainless plates, aluminum materials, wood, laminated materials, plastic composite materials, and the like.

The new dry wall material F covers the surface of the old ALC outer wall B and forms a new wall surface.
It functions as a decorative material, a waterproofing material, a heat insulating material, a fireproofing material, and a fireproofing material. For example, a lightweight metal siding material as shown in FIG. Siding materials are preferred.

That is, the dry wall material F shown in FIG. 7 is made of a siding material in which a core material 18 is sandwiched between a front material 16 and a back material 17.

When the front surface member 16 and the back surface member 17 are made of a thin metal plate, for example, iron, aluminum, copper, stainless steel,
Titanium, aluminum / zinc alloy plated steel sheets, galvalume steel sheets, enameled steel sheets, clad steel sheets, fluoroplastic steel sheets, laminated steel sheets (PVC steel sheets, etc.), sandwich steel sheets (damping steel sheets, etc.), (of course, these are painted in various colors) (Including a plate) is formed into a predetermined shape by extrusion molding, roll molding, and press molding.

When the front surface member 16 and the back surface member 17 are made of a synthetic resin plate, for example, a PVC resin, a polycarbonate resin, or the like is formed into a predetermined shape by extrusion molding, press molding, roll molding, or the like. Of course, a material obtained by laminating these metal plates and a synthetic resin plate may be used.

Further, especially, the back material 17 is made of aluminum-evaporated paper, asbestos paper, kraft paper, asphalt felt, metal foil (Al, Fe, Pb, Cu), synthetic resin sheet, rubber sheet, cloth sheet, gypsum paper, hydroxide Aluminum paper,
It can also be formed from a laminate of one or two or more of glass fiber nonwoven fabrics, or a sheet-like material subjected to waterproof treatment and flame retardant treatment.

The core material 18 mainly functions as a heat insulating material, a fireproof material, and a bulk material of the dry wall material F, and includes a synthetic resin such as polyurethane, polyisocyanurate, phenol, vinyl chloride, polyethylene, polystyrene, and urea. The foam, or an inorganic material such as calcium silicate, calcium carbonate, aluminum hydroxide, or the foam, or a fibrous mat such as glass fiber, ceramic fiber, rock wool, asbestos, or a plaster board. is there.

The integration of the core member 18 with the front surface member 16 and the back surface member 17 is performed, for example, by utilizing the self-adhesive property of the core member 18 when the core member 18 is a synthetic resin foam, and in other cases. It is laminated and sandwiched separately via an adhesive (not shown).

FIG. 7 shows a dry wall material F having a male connecting portion 19 at one end and a female connecting portion 20 at the other end. 21 is an example showing a general horizontal-type metal-based siding material in which 21 is formed. In the figure, a single soft sealing material 22 is interposed in the female connecting portion 20 to improve the waterproofness of the joint.

Further, the attachment of the dry wall material F is shown in FIGS.
As shown in the figure, the male connecting portion 19 is fixed to the rim E by using a fixing tool β such as a tapping screw, a tex screw, a self-drilling screw screw, and the male connecting portion 19 and the female connecting portion 20 are connected to each other. , Are connected and attached by female fitting.

Here, a method of constructing the ALC outer wall repair structure according to the present invention will be briefly described. First, as shown in FIG. 8, a through hole is formed from the surface side of the ALC outer wall B using a device such as a hole saw at a pitch L in the vertical direction and a pitch P in the horizontal direction along the disposition position of the H-shaped steel material A. Form C.

Next, as shown in FIG. 9, the base base material D1 is inserted from the surface of the ALC outer wall B through the through hole C, and positioned between the upper flange 1 and the lower flange 2 of the H-shaped steel material A. At the same time, the bolt 10 is rotated so that the upper pedestal 4 and the lower pedestal 5
Is mounted so that the distance between the upper flange 1 and the lower flange 2 is increased.

Then, as shown in FIG.
The extension bolt 15 of the extension base material D2 is fastened to the first nut 11 and the nut 11 is adjusted to adjust the length of the connection base material D so as to eliminate the unevenness of the H-shaped steel material A.

Further, as shown in FIG.
The tip of the connecting base material D protruding from the surface of the LC outer wall B,
That is, welding, adhesive,
It is attached in the vertical direction by fixing means such as bolt-nut α and fixing tool β. Lastly, as shown in FIG. 1, a horizontal wall type dry wall material F is attached to the rim of the body to complete the repair. Of course, though not shown, various external parts such as a draining material, a starter material, a closing edge material, a corner material, a corner material, an opening member and the like are constructed as necessary to form a new outer wall surface.

The above is an embodiment of the ALC outer wall repairing structure according to the present invention. The structure shown in FIGS. 12 to 15 or the use of various members as shown in FIGS. The structure can also be changed.

That is, FIG. 12 shows a contact portion between the upper base 4 of the connecting base material D and the upper flange 1 of the H-shaped steel material A, and the lower base 5 of the connecting base material D and the lower flange 2 of the H-shaped steel material A. This shows an example of a structure in which an adhesive layer 23 is interposed in order to improve the mounting strength at a contact portion with the adhesive layer. Examples of the adhesive layer 23 used at this time include various adhesives, particularly an epoxy-based adhesive or an acrylic-based adhesive (for example, trade name) which has a strong adhesive strength and is used for civil engineering and bridge connection. : Metal grips, manufactured by Sumitomo 3M Ltd.)
Or a double-sided tape or the like.

The structure shown in FIG. 13 is an example of a structure in which a connecting base material D is inserted into a through hole C formed in an ALC outer wall B, and then a filler G is filled to fill the through hole C. Examples of the filler G include mortar, rock wool, in-situ foamed synthetic resin foam, and the like, which are lost by forming the through hole C in the ALC outer wall B, and have waterproofness, heat insulation, fire resistance, It supplements airtightness and the like.

The structure shown in FIGS. 14 and 15 is obtained by attaching a horizontal body edge E1 extending in a horizontal direction to a body edge E extending in a vertical direction at an arbitrary pitch. This is an example of a structure used in a mold or around an opening such as a window or a door. In FIG. 14, the horizontal edge E1 is placed on the edge E, and in FIG.
It shows an example in which a horizontal torso edge E1 is mounted between them.

FIG. 16 shows another example of the base base material D1 constituting the connecting base material D. The packing material 2 for improving the adhesion between the upper pedestal 4 and the lower pedestal 5 with the H-shaped steel material A is shown in FIG.
This is an example in which No. 4 is adhered.

FIGS. 17 (a) to 17 (f) show modified examples of the shape of the extension base material D2 constituting the connection base material D. FIG.
FIG. 17A shows the shape of the cross section of the extension bar member 14 as a C-shape.
FIG. 17C shows a hollow square shape, FIG. 17C shows a hat shape, and FIG.
FIG. 7D shows an example of a crank shape, and FIG. 17E shows an example of an L shape. FIG. 17F shows an example using a flat steel material.

FIGS. 18A to 18F show the body edge E (horizontal body edge E).
18 (a) includes a C-shaped cross section, FIG. 18 (b) a hollow square shape, FIG. 18 (c) a hat shape, and FIG. 18 (d). Is shaped like a crank, FIG.
(E) is an example formed in a T-shape. FIG. 18 (f)
Shows an example using a flat steel material.

FIGS. 19 to 22 are cross-sectional views showing other examples of the dry wall material F. FIGS. 19A to 19D show a drop-in type dry wall material F mainly used for horizontal stretching. Example, FIG.
0 (a) to (c) are examples of dry wall materials F which are plug-in type and mainly used for vertical stretching.

A dry wall material F shown in FIG. 21 is a cross-sectional view showing an example of a large double-sided metal sandwich panel. In particular, FIG. 21 (b) has waterproofness and fire resistance inside the male connecting portion 19. This is an example in which a fireproof packing material 25 and a waterproof sealing material 26 are interposed in the female connection portion 20 to improve the waterproofness and fire resistance of the joint joint.

Further, the dry wall material F shown in FIG.
Is an example in which a non-combustible member 27 arbitrarily formed so as to conform to the shapes of the male connecting portion 19 and the female connecting portion 20 is mounted in each connecting portion, and the non-combustible member 27 is formed of dry wall materials F. In addition, since the joint joints are improved in fire resistance and fire resistance, and are filled at the ends of the male joint 19 and the female joint 20, the core 18 at the end of the dry wall material F Of the core material 18 and the foamability and spreadability of the core material 18 are also improved. The non-combustible member 27 is made of at least one non-combustible member such as a calcium silicate plate, a high density phenol resin plate, a wood wool cement plate, a rock wool plate, and an aluminum hydroxide plate.

The dry type wall material F shown in FIG. 22 is an example of a box-type sandwich panel in which the front surface material 16 and the back surface material 17 are formed in a rectangular or rectangular shape.

Further, in addition to the above, a refurbished structure of the ALC outer wall can be obtained by combining these members.

[0046]

As described above, according to the ALC according to the present invention,
According to the renovation structure of the outer wall, it is not necessary to dismantle the existing ALC outer wall, so the construction man-hour can be omitted, the construction period can be greatly reduced, and there is no hindrance to living and use during construction. Absent. Since a new outer wall is formed on an existing ALC outer wall, construction is simple and cost can be saved. It has a double wall structure of the existing ALC outer wall and a new dry wall material, and has a structure with excellent heat insulation, soundproofing, and fireproofing properties.
By forming through-holes in the ALC outer wall, the installer can directly check the base material from the front side of the ALC outer wall by eye, and the connection of the connecting base material to the base material is assured, and the dry wall material is used. The mounting strength does not deteriorate. By using two connecting base materials, the length of the connecting base material itself can be adjusted to some extent, and even if the thickness of the existing ALC outer wall is different, it is possible to cope with the same connecting base material. This makes it easier to adjust unevenness, so that the aesthetic appearance and workability of the new drywall material are improved. When connecting the connecting base material to the H-shaped steel material, it is sandwiched and fixed between the upper and lower flanges of the H-shaped steel material. The connection base material can be attached without driving, and the construction becomes easy. There are effects and features such as.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a typical example of a repair structure of an ALC outer wall according to the present invention.

FIG. 2 is an explanatory view showing a typical example of a repair structure of an ALC outer wall according to the present invention.

FIG. 3 is an explanatory view showing an example of a connection base material used in the present invention.

FIG. 4 is an explanatory view showing an example of a connection base material used in the present invention.

FIG. 5 is an explanatory view showing an example of a connection base material used in the present invention.

FIG. 6 is an explanatory view showing an example of a body edge used in the present invention.

FIG. 7 is an explanatory view showing an example of a dry wall material used in the present invention.

FIG. 8 is an explanatory diagram showing a construction order of a repair structure of an ALC outer wall according to the present invention.

FIG. 9 is an explanatory view showing a construction order of the ALC outer wall repair structure according to the present invention.

FIG. 10 is an explanatory view showing a construction order of a repair structure of an ALC outer wall according to the present invention.

FIG. 11 is an explanatory view showing a construction order of a repair structure of an ALC outer wall according to the present invention.

FIG. 12 is an explanatory view showing another example of the ALC outer wall repair structure according to the present invention.

FIG. 13 is an explanatory view showing another example of the ALC outer wall repair structure according to the present invention.

FIG. 14 is an explanatory view showing another example of the ALC outer wall repair structure according to the present invention.

FIG. 15 is an explanatory view showing another example of the repair structure of the ALC outer wall according to the present invention.

FIG. 16 is an explanatory view showing another example of the base base material constituting the connection base material.

FIG. 17 is an explanatory diagram showing another example of the extended base material constituting the connected base material.

FIG. 18 is an explanatory view showing another example of the body edge.

FIG. 19 is an explanatory view showing another example of the dry wall material.

FIG. 20 is an explanatory view showing another example of the dry wall material.

FIG. 21 is an explanatory view showing another example of the dry wall material.

FIG. 22 is an explanatory diagram showing another example of the dry wall material.

[Explanation of symbols]

 A H-type steel material B ALC outer wall C Through hole D Connecting base material D1 Base base material D2 Extended base material E Body edge E1 Side body edge F Dry wall material G Filling α Bolt-nut β Fixture a Angle b Z clip c Filling Joint material 1 Upper flange 2 Lower flange 3 Web 4 Upper pedestal 5 Lower pedestal 6 Left pedestal 7 Right pedestal 8 Framed material 9 Pin 10 Bolt 11 Nut 12 Tongue piece 13 Flat portion 14 Extension bar 15 Extension bolt 16 Surface material 17 Back material Reference Signs List 18 core material 19 male connecting portion 20 female connecting portion 21 decorative rib 22 sealing material 23 adhesive layer 24 packing material 25 fire-resistant packing material 26 sealing material 27 non-combustible member

Claims (1)

[Claims] An existing A attached to an H-section steel material
In the structure to renovate the LC outer wall with new drywall material,
A through-hole is provided in the existing ALC outer wall, a connecting base material is inserted into the through-hole, and one end of the connecting base material is sandwiched and fixed between upper and lower flanges of the H-shaped steel. The other end is fixed to a body edge provided on the surface of the ALC outer wall, and a new dry wall material is fixed to the body edge, and the connection base material is at least a base base material and an extension base material. A repair structure for an ALC outer wall, wherein the ALC outer wall is formed from two members.