JP2001132199A - Improvement structure for outer wall - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an improvement structure for an outer wall having sufficient fitting strength of a new outer wall material without damaging an ALC (lightweight cellular concrete) outer wall by fixing a furring strip for fitting the new dry wall material directly to the skeleton (substrate material) of a building in a construction method for improving the existing outer wall face of a building or a structure, particularly the existing outer wall face mainly made of an ALC member, with the new outer wall. SOLUTION: This improvement structure is constituted of an adjusting metal E formed with a fixed piece 11 and a fitting piece 12 kept in parallel and a connecting piece 13 connecting the fixed piece 11 and the fitting piece 12 and fixing the fixed piece 11 in contact with the face of the existing outer wall C, the furring strip F fitted to the fitting piece 12 of the adjusting metal E, and the new outer wall material G arranged on the surface side of the furring strip F. The adjusting metal E can adjust the horizontal distance between the fixed piece 11 and the fitting piece 12 by changing the angle between the connecting piece 13, the fixed piece 11, and the fitting piece 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for repairing an existing outer wall surface of a building or a structure, particularly an existing outer wall surface mainly of an ALC member (lightweight cellular concrete) with a new outer wall. More specifically, by fixing the rim for attaching a new drywall material directly to the building frame (base material) of the building, the outer wall does not damage the ALC outer wall and has sufficient installation strength for the new outer wall material. It relates to the renovation structure.

[0002]

2. Description of the Related Art Conventionally, the renovation of an outer wall using an ALC member has been carried out by removing all of the old ALC outer wall and forming a new outer wall 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 renovation method using the LC wall itself as a wall base material is generally known.

[0003]

However, in the construction method in which all the outer walls of the old ALC and the like as described above are removed and a new outer wall is formed on the existing base material such as the frame and the rim, There was a problem in increasing the cost for removal and disposal of the removed waste material, and there was a problem that the inside of the building could not be used during the construction period because there was no outer wall during the construction.

Further, in the construction method in which the ALC outer wall is used as it is as a wall base material and a new outer 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. The use of this as a wall base has a problem with the strength of the new wall material that has been installed, and has the risk of falling off or peeling off due to external impacts such as typhoons and earthquakes. . 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,
Irregularities also occurred on the new wall surface that had risen, and the appearance was inferior.

[0005] In order to eliminate such disadvantages, the present invention provides:
An adjusting bracket formed of a fixing piece and a mounting piece parallel to each other, a connecting piece for connecting the fixing piece and the mounting piece, and fixing the fixing piece while abutting the existing outer wall surface; And a new outer wall material arranged on the front side of the body edge.The adjustment bracket can adjust the horizontal distance between the fixing piece and the mounting piece by changing the angle formed by the connecting piece, the fixing piece, and the mounting piece. We propose a certain exterior wall repair structure. By adjusting the distance between the fixing piece and the mounting piece, it becomes possible to adjust the unevenness of the new outer wall material attached to the mounting piece via the fuselage, and it is possible to beautifully finish the appearance of the renovated outer wall. is there.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of an outer wall repairing structure according to the present invention. FIG. 1 is a perspective view showing a typical example of a modified ALC outer wall using the present invention, FIG. 2 is an explanatory view showing a cross-sectional view thereof, A is a modified outer wall, B is a base material, C is an existing outer wall, D is a fixture, E is an adjustment bracket, F is a rim, and G is a new outer wall material.

The base material B is composed of a building frame and an existing outer wall C.
And is composed of horizontal members arranged in the horizontal direction as shown in the figure. More specifically, H-shaped steel materials, or square steel materials (not shown) and C-shaped steel materials (lip grooved steel materials) ), An L-shaped angle material, a steel base material such as a grooved steel material, or a wooden pillar material.

The existing outer wall C is fixed to a base material B made of H-shaped steel or the like via an angle a and a vertical cover plate b. FIG. 2 shows an example of an ALC outer wall which is attached by a general insertion bar construction method which has come to be rehabilitated. In addition to the above, there are various ways of attaching an existing outer wall C, and the method is limited to this. Not something. In addition, c is a filler joint material to be filled in the joint part of the existing outer wall C.

The fixture D is made of various steel materials having excellent strength, such as iron, stainless steel, aluminum, titanium, and various synthetic resins reinforced with fibers. As shown in FIG. Screw portions 2 and 3 are formed near the distal end portion of the body 1 and the head 4, respectively. The head 4 has a structure having a washer 5 and a holding portion 6 in order from the shaft body 1 side. The washer 5 is separated from the shaft body 1 and the holding portion 6 at a portion abutting on the existing outer wall C, and the fixture D is moved by allowing the screw portion 2 to reach the base material B while abutting on the surface of the existing outer wall C. Securely fix. When the fixing tool D is driven, the holding part 6 is formed in a shape that matches the driving part of the tool. The holding part 6 has a diameter equal to or smaller than the diameter of the washer 5, and here, a hexagon nut is used. I do.

The mounting pitch of the fixture D is arbitrary as long as it is within a range that satisfies the mounting strength (wind pressure resistance) necessary and sufficient for the new outer wall material H described later. 900, 1200, 1500m
The m-level and vertical pitch vary depending on the type of building, but are generally about 3500 mm high for one story.

As shown in FIG. 3A, the adjusting bracket E includes a fixing piece 11 and a mounting piece 12 which are parallel to each other, and
And a connecting piece 13 for connecting the mounting piece 12 to fix the fixing piece 11 in contact with the existing outer wall C surface. The fixing piece 11 facilitates driving of the fixing tool D onto the existing outer wall C by forming a pilot hole 11a through which the shaft body 1 of the fixing tool D passes. This is where F is attached. As shown in FIG. 4B, the adjustment bracket E is provided with a fixing piece 1 by changing an angle formed by the fixing piece 11 and the mounting piece 12 with the connecting piece 13.
The horizontal distance between 1 and the mounting piece 12 can be adjusted, and a modified outer wall A having a beautiful appearance can be formed by adjusting the unevenness when the new outer wall material G is mounted. In addition,
It is also possible to prepare a plurality of types of adjustment fittings E in which the horizontal distance between the fixing piece 11 and the mounting piece 12 is slightly different from each other.

FIG. 5 shows an example of the rim F.
The body edge F is vertically attached on the attachment piece 12 and functions as a base on which the new outer wall material G is attached. The body edge F is a hat-shaped long body having a substantially sectional shape, and has a smooth fixed piece 21 and a fixed piece. It has a mounting piece 22 that is parallel to 21 and protrudes outward from the fixed piece 21. Note that, between the existing outer wall material G and the existing outer wall C, the horizontal distance between the fixing piece 11 and the mounting piece 12 and the body edge F
The ventilation space 23 having a width corresponding to the thickness of the air gap is secured.

FIG. 6 shows an example of the new outer wall material G. That is, the new outer wall material G includes the front surface material 33 and the back surface material 34.
The core member 35 is sandwiched between the upper and lower ends of the male connecting portion 31, which can be fitted respectively.
The female connecting portion 32 is formed. A new outer wall material G is continuously arranged up and down while engaging the male connecting portion 31 and the female connecting portion 32 to cover the entire surface of the existing outer wall C, thereby completing the renovated outer wall A having a good appearance. It is.

The surface material 33 is made of a metal plate, for example, one of iron, aluminum, copper, stainless steel, titanium, aluminum / zinc alloy-plated steel plate and enameled steel plate (of course, a color plate coated with these in various colors) or plastic. Thin plate, F
It is made of a synthetic resin plate such as RP, vinyl chloride, polycarbonate or the like, or a combination thereof, and is formed by forming one or more of them by roll forming, press forming, extrusion forming or the like. Male connector 31,
The female connecting portion 32 is formed such that the upper and lower ends of the surface material 33 can be fitted respectively.

The back material 34 is made of asbestos paper, kraft paper,
Asphalt felt, metal foil (Al, Fe, Pb, C
u), one or two or more of synthetic resin sheet, rubber sheet, cloth sheet, gypsum paper, aluminum hydroxide paper, glass fiber nonwoven fabric, etc., or waterproof treatment,
It is made of a sheet-like material subjected to a flame-retardant treatment, or made of the same material as the surface material 33.

The core material 35 is made of a new outer wall material G,
It has fire resistance, polyurethane foam,
Polyisocyanurate foam, phenol foam,
It is made of vinyl chloride foam, polyethylene foam, polystyrene foam, urea foam and the like.
By arranging the new outer wall material G having the core material 35 on the entire surface of the existing outer wall C, not only the appearance of the renovated outer wall A can be beautifully finished, but also the heat insulating property, the prevention of fire, and the fire resistance can be improved.

The process of forming the modified outer wall A of the present invention will be described below. First, as shown in FIG. 7, a predetermined tool is used to drive the shaft 1 of the fixture D through the existing outer wall C while passing through the lower hole 11a of the adjusting bracket E and drive the shaft 1 into the base material B. Fix to outer wall C surface. At this time, FIG.
As shown in (b), the angle between the fixing piece 11 and the mounting piece 12 of the adjustment fitting E and the connecting piece 13 is changed, and the unevenness of the mounting piece 12 is adjusted. By performing unevenness adjustment of the mounting piece 12, it becomes possible to mount the body edge F and the existing outer wall C without being affected by unevenness of the existing outer wall C.
Can be beautifully finished.

Next, as shown in FIG. 8, a fixing tool α (hex, tex, screw screw, etc.) is driven into the fixing piece 21 while abutting the fixing piece 21 on the mounting piece 12, thereby fixing the body edge F. Then, as shown in FIG.
2. A modified outer wall A as shown in FIG. 1 is formed by fixing with a fixing tool β on the upper surface and attaching the male connecting portion 31 and the female connecting portion 32 while engaging them from below. It is.

What has been described above is one embodiment of the outer wall repairing structure according to the present invention, and FIGS. 10 to 11 (a) to (f).
Or a member can be used. That is, FIG. 10 is an example of a modified outer wall A provided with a pilot hole 41 for driving the shaft 1 of the fixture D. Shaft 1
By drilling the prepared hole 41 having a diameter slightly larger than the diameter of the outer wall C with a hole saw or the like, it is not necessary to punch out the existing outer wall C with the fixture D, and the driving can be facilitated.

FIGS. 11A to 11F show modified examples of the adjusting bracket E. FIG. That is, FIGS. 11 (a) and 11 (b)
Is an example in which mounting pieces 12 are formed on both sides of the fixing piece 11,
It is easy to keep the fixing piece 11 and the mounting piece 12 parallel even when the unevenness is adjusted. FIG. 11C shows an example in which the shape of the connection piece 13 is changed, and FIG. 11D shows an example in which the angle of the connection piece 11 is changed. FIG. 11E shows an example in which an elastic body 14 is provided on the mounting piece 12 and FIG.

[0021]

As described above, according to the outer wall repair structure according to the present invention, it is not necessary to dismantle the existing outer wall, so that the number of construction steps can be reduced and the construction period can be greatly reduced. It does not hinder any living or use inside. Since the new outer wall is formed on the existing outer wall, construction is easy and cost can be saved. It will be a double-wall construction method with existing exterior walls and new exterior wall materials, and will be a construction method that is rich in heat insulation, soundproofing, and fireproofing. By changing the angle between the fixing piece and the mounting piece of the adjustment bracket and the connecting piece, the unevenness can be adjusted by adjusting the horizontal distance between the fixing piece and the mounting piece, and the appearance of the renovated outer wall can be beautifully finished. There are features and effects such as.

[Brief description of the drawings]

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

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

FIG. 3 is an explanatory view of a fixture.

FIG. 4 is an explanatory view of an adjustment fitting.

FIG. 5 is an explanatory diagram of a body edge.

FIG. 6 is an explanatory diagram of a new outer wall material.

FIG. 7 is an explanatory view showing a repair procedure of the outer wall repair structure according to the present invention.

FIG. 8 is an explanatory view showing a repair procedure of the outer wall repair structure according to the present invention.

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

FIG. 10 is another example of the outer wall repair structure according to the present invention.

FIG. 11 is another example of the outer wall repair structure according to the present invention.

[Explanation of symbols]

 α Fixture β Fixture a Angle b Vertical cover plate c Filled joint material A Renovation outer wall B Base material C Existing outer wall D Fixture E Adjustment bracket F Body edge G New outer wall material 1 Shaft 2 Screw 3 Screw 4 Head Reference Signs List 5 washer 6 holding part 11 fixing piece 11a pilot hole 12 mounting piece 13 connecting piece 14 elastic body 21 fixing piece 22 mounting piece 31 male connecting part 32 female connecting part 33 surface material 34 back material 35 core material 41 core hole

 ──────────────────────────────────────────────────続 き Continued on the front page F-term (reference) 2E110 AA02 AA33 AA42 AB04 AB22 BA02 BA12 BC17 BD02 BD23 CA04 CA09 CC04 CC19 CC25 DA10 DA16 DC12 EA01 EA05 EA06 GA32X GA33W GA42X GB02W GB02Z GB03W GB03Z GB06W GB06Z GB16X GB19 GB GB55X GB56X GB63X 2E176 AA02 BB25

Claims (1)

[Claims] 1. An adjusting bracket formed of a fixing piece and a mounting piece that are parallel to each other, a connecting piece that connects the fixing piece and the mounting piece, and fixing the fixing piece while abutting the existing outer wall surface, and mounting the adjusting metal fitting. It consists of a body edge attached to the piece and a new outer wall material arranged on the surface side of the body edge, and the adjustment bracket changes the angle between the connection piece and the fixed piece and the mounting piece to change the horizontal distance between the fixed piece and the mounting piece. Exterior wall renovation structure characterized in that it can be adjusted.