JP3964034B2 - Renovation structure of ALC outer wall - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structure for repairing an existing outer wall surface made of an ALC member (lightweight cellular concrete) of a building or a structure with a new outer wall. More specifically, the connecting base material for attaching a new dry-type wall material is a take-out beam structure that is directly fixed to the building frame (base material) without applying a load (load) to the ALC outer wall. The present invention relates to a repair structure of an ALC outer wall that does not damage the outer wall and that also has a sufficient mounting strength for a new dry-type wall material.
[0002]
[Prior art]
Conventionally, renovation of outer walls using ALC members has been done by removing all existing ALC outer walls and forming new outer walls on existing base materials such as housings and trunk edges, or directly on the ALC outer wall surface. A structure in which a new dry wall material is brought into contact, the dry wall material is repaired by using a fixture such as a concrete anchor, and the ALC wall itself is used as a wall base material is generally known.
[0003]
[Problems to be solved by the invention]
However, in the structure in which all the existing ALC outer walls that have become old as described above are removed, and new outer walls are formed on the wall base materials such as the existing housing and trunk edges, the cost for removal and the removed waste materials are removed. In addition, there is a problem in the processing, and there is no outer wall during the construction, and there is a problem that it becomes impossible to live in the building or work or use the inside of the building during the construction period.
[0004]
In addition, in the structure in which the ALC outer wall is directly used 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 changes over time due to its properties. However, using this as a wall base has a problem in the mounting strength of the attached new wall material, and it 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 a new outer wall is constructed as it is, it is difficult to adjust the unevenness due to the irregularities, and irregularities are also generated on the new wall surface, which is inferior in aesthetics.
[0005]
[Means for Solving the Problems]
In order to eliminate such drawbacks, the present invention forms a through hole at a position where the base material of the existing ALC outer wall is disposed, inserts a connecting base material into the through hole, and fixes it to the base material. And, because the other end is fixed to the trunk edge through a sheet material arranged on the outer wall surface of the ALC, and a new dry wall material is fixed to this trunk edge, it is possible to work without damaging the dwelling during construction. Easy to install and reliable, and the connecting base material has an expansion / contraction function, so it is possible to cope with the difference in the thickness of the ALC outer wall and adjust the unevenness, so the aesthetics of the new dry wall material can be improved. In addition, the sheet material functions as a protective material for the ALC outer wall, and due to external pressure such as an earthquake, the ALC outer wall collapses from the old ALC outer wall itself and through-holes, and debris scatters. To prevent the material from being pressed In addition, the existing ALC outer wall can be replenished with the waterproofing, airtightness, heat insulation and strength deterioration lost by closing the through-hole and forming the through-hole, and the connecting base material is used as a take-out beam structure It proposes a repair structure of the ALC outer wall that can be repaired without any burden (load).
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the repair structure of the ALC outer wall according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing a typical example of the above-described repair structure of the ALC outer wall, FIG. 2 is an explanatory view showing a cross-sectional view thereof, A is a base material to be a mounting base of the building frame and the ALC outer wall B, It consists of horizontal members arranged in the horizontal direction as shown in the figure. More specifically, it is H-type steel, or although not shown, square steel, C-type steel (lip groove type steel), L-shaped angle material, groove It consists of a steel base material such as a steel mold.
[0007]
B is an existing ALC outer wall, which is fixed to a base material A made of an H-shaped steel material or the like via an angle a and a vertical plate b as shown in FIG. Note that FIG. 2 shows an example of the ALC outer wall B attached by a general insertion reinforcement method approaching the renovation time, and there are various other ways of attaching the ALC. It is not a thing. C is a filling joint material filled in the joint portion of the ALC outer wall B. Furthermore, makeup is applied on the surface of the ALC outer wall B with a makeup covering member (paint, etc., not shown). is there.
[0008]
C is a through-hole formed in the ALC outer wall B, and is formed from the surface side of the ALC outer wall B by using a device such as a hole saw at a constant pitch on the ALC outer wall B along the arrangement position of the base material A. is there. Further, the through-hole C functions as a path for inserting a connecting base material D, which will be described later, and its shape and size are such that the connecting base material D can be easily filled, and any if it is attached to the base material A It is. In addition, by forming the through-hole C in the ALC outer wall B, the installer can directly check the base material A from the surface side of the ALC outer wall B, and the connection base material D to be described later can be applied to the base material A. Installation is reliable.
[0009]
D is a connecting base material, which is inserted into a through-hole C formed in the ALC outer wall B, one end of which is fixed to the base material A, and the other end is fixed to a trunk edge E which will be described later. The material A and the trunk edge E which is the attachment base of the new dry wall material G are connected to prevent the attachment strength of the dry wall material G from being deteriorated. In addition, the attachment is made so that the through-hole C and the connecting base material D do not touch (not contact), and the ALC outer wall B is attached so as not to apply any load (load). Further, the connecting base material D also functions as a mounting base for the sheet material F described later.
[0010]
As an example of a specific shape of the connecting base material D, for example, as shown in FIG. 3B corresponding to a perspective view of FIG. 3A and a central sectional view of FIG. And the inner member D2 are composed of various steel materials having excellent strength, iron, stainless steel, aluminum, titanium, various synthetic resins reinforced with fibers, and the like. .
[0011]
Further, as shown in FIGS. 4A and 4B and the inner member D2 as shown in FIGS. 5A and 5B, the outer member D1 is a bottomed cylindrical body, and both are outer bottom portions. 1 and the inner bottom 2 are externally screwed together. That is, the male screw groove 3 is formed on the inner peripheral surface on the opening side of the outer member D1, and the female screw groove 4 is formed on the outer peripheral surface of the inner member D2.
[0012]
Further, one or more pilot holes 5 are formed in the outer bottom portion 1 of the outer member D1, and function as a guide hole when a fixture β such as a hex, a tex, or a screw screw is placed. The number is arbitrarily set according to the required mounting strength. Of course, as a fixing means of the base material A of the outer member D1, besides using the fixing tool β, it is possible to directly attach it by welding or to attach it firmly through an adhesive.
[0013]
A tool locking hole 6 is formed in the central portion of the inner bottom portion 2 of the inner member D2, and this inserts the tip of a tool such as a screwdriver when the inner member D2 is screwed to the outer member D1. For this purpose, the screw connection between the inner member D2 and the outer member D1 is facilitated.
[0014]
In this way, the outer member D1 and the inner member D2 are screw-coupled and integrated as a connecting base material D, so that the connecting base material D is provided with a length expansion / contraction function, so that one connection Even if the thickness of the ALC outer wall B is different depending on the base material D, it is possible to cope with it to some extent, and it is possible to easily adjust the unevenness of the base material A.
[0015]
F is a sheet material, for example, made of a long sheet-like material as shown in FIG. 6, and is disposed so as to cover the surface of the ALC outer wall B, the through hole C, and the inner bottom portion 2 of the inner member D2. It functions as a protective material for the ALC outer wall B. Due to external pressure such as an earthquake, the old ALC outer wall B itself and the through-hole C cause the ALC outer wall B to collapse and scatter debris. Is prevented, and the waterproofing, airtightness, heat insulation, and strength deterioration lost by forming the through-hole C by closing the through-hole C are supplemented.
[0016]
The material of the sheet material F requires a certain degree of strength, and is preferably reinforced with various fibers, for example, carbon fiber reinforced sheet, FRP sheet, glass fiber sheet, non-woven fabric, asphalt felt sheet, boron fiber sheet. , Polycarbonate sheet, vinyl chloride sheet, rubber sheet and the like.
[0017]
E is a trunk edge, and is attached to the front end of the connecting base material D protruding from the surface of the ALC outer wall B by a fixing means such as a fixture β through the sheet material F as shown in FIGS. Yes, it functions as a mounting base for the dry wall material G to be described later. Further, the trunk edge E has a space between the ALC outer wall B and the dry wall material G depending on the thickness thereof, and can function as a flow path for fresh air or the like, and can be used for corrosion prevention or the like.
[0018]
As a specific example of the trunk edge E, for example, as shown in FIG. 7, a flat steel material 9 is attached to the head 8 of the hat-type steel material 7 by welding and integrated. Of course, this is an example of the trunk edge E. For example, a square steel material (square pipe), a hat type steel material, a lip groove type steel material, a groove type steel material, a flat type steel material or the like can be used as the trunk edge E. As the material, various steel materials having excellent strength, iron plates, stainless steel plates, aluminum materials, wood, laminated materials, plastic composite materials, and the like can be used.
[0019]
Furthermore, the trunk edge E has a horizontal trunk edge E1 extending in the horizontal direction and a vertical trunk edge E2 extending in the vertical direction, and the types of dry wall materials G (vertical type, horizontal type) to be described later, and necessary trunk edges. It is arbitrarily arranged on the surface of the ALC outer wall B depending on the pitch.
[0020]
In addition, the overlapping part of the horizontal trunk edge E1 and the vertical trunk edge E2 has the same surface shape so that the distance between the ALC outer wall B and the dry-type wall material G does not become long (so-called dandruff does not appear). For example, the connection fitting H1 as shown in FIG. 8A is used as shown in FIG. 9 or the connection fitting H2 as shown in FIG. 8B is used as shown in FIG. It is preferred to do as shown.
[0021]
That is, the connecting metal fitting H1 shown in FIG. 8A has an angle piece shape formed by bending the connecting tongue pieces 10 to each other, and each connecting tongue piece 10 has a bottom serving as a positioning guide for the fixture β. A hole 11 is formed.
[0022]
As shown in FIG. 9, the connecting metal fitting H <b> 1 connects the horizontal trunk edge E <b> 1 and the vertical trunk edge E <b> 2 by driving a fixing tool β from the side surface portion 12 to fix it. A total of four connecting fittings H1 on the left and right sides are used to firmly connect the trunk edges E together.
[0023]
8B is formed by cutting a square steel material (square pipe) into short pieces.
[0024]
As shown in FIG. 10, the connecting metal fitting H2 is inserted into the groove portion 13 of the vertical trunk edge E2, and the lip portion 14 of the horizontal trunk edge E1 and the side face portion 12 of the vertical trunk edge E2 are respectively fixed by the fixture β. By placing, the horizontal trunk edge E1 and the vertical trunk edge E2 are connected. In this case, it is possible to minimize the dandruff caused by the head of the fixing device β by making the fixing device β to be placed on the lip portion 14 of the horizontal waist edge E1 into a pan head or a dish head shape. It is possible to prevent the installation of the dry wall material G.
[0025]
The new dry wall material G covers the surface of the old ALC outer wall B and forms a new wall surface. It mainly functions as a decorative material, waterproofing material, heat insulating material, fireproofing material, and fireproofing material. In order not to place a burden on the existing base material A, for example, a lightweight metal panel, a metal siding material, various ceramic siding materials and the like as shown in FIG. 11 are preferable.
[0026]
That is, the dry-type wall material G shown in FIG. 11 is made of a sandwich plate material in which the core material 17 is sandwiched between the front surface material 15 and the back surface material 16.
[0027]
When the surface material 15 and the back material 16 are made of a thin metal plate, for example, iron, aluminum, copper, stainless steel, titanium, aluminum / zinc alloy plated steel plate, galbarium steel plate, enamel steel plate, clad steel plate, fluororesin steel plate, laminated steel plate (vinyl chloride) Steel plates, etc.), sandwich steel plates (damping steel plates, etc.), and (of course, including color plates coated with various colors) are formed into a predetermined shape by extrusion molding, roll molding, press molding.
[0028]
Further, when the front surface material 15 and the back surface material 16 are made of a synthetic resin plate, for example, a vinyl 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, the metal plate and the synthetic resin plate may be laminated and combined.
[0029]
Furthermore, in particular, the back material 16 is made of aluminum vapor-deposited paper, asbestos paper, craft paper, asphalt felt, metal foil (Al, Fe, Pb, Cu), synthetic resin sheet, rubber sheet, cloth sheet, gypsum paper, aluminum hydroxide paper, It can also be formed from a laminate of one or two or more glass fiber nonwoven fabrics, or a sheet-like material that has been subjected to a waterproof treatment or a flame retardant treatment.
[0030]
The core material 17 functions mainly as a heat insulating material, a fireproof material, and a bulk material of the dry wall material G, and a synthetic resin such as polyurethane, polyisocyanurate, phenol, vinyl chloride, polyethylene, polystyrene, urea, and its foam. Or an inorganic material such as calcium silicate, calcium carbonate, aluminum hydroxide, or a foam thereof, or a fiber mat such as glass fiber, ceramic fiber, rock wool, asbestos, gypsum board, or the like.
[0031]
Further, the integration of the core material 17 with the front surface material 15 and the back surface material 16 uses, for example, the self-adhesiveness when the core material 17 is a synthetic resin foam, and otherwise separate adhesive. (Not shown) are laminated together and sandwiched.
[0032]
Further, FIG. 11 shows a general horizontal type metal siding material having a phased shape in which a male connecting portion 18 is formed at one end of the dry wall material G and a female connecting portion 19 is formed at the other end. It is an example to show. In the figure, a single soft sealing material 20 is interposed in the female connecting part 19 to improve the waterproofness of the joint part.
[0033]
Further, as shown in FIGS. 1 and 2, the dry wall material G is fixed to the body edge E by fixing the male connecting portion 18 to the body edge E using a fixing tool β such as a tapping screw, a tex screw, or a self-drilling screw screw. The male connecting portion 18 and the female connecting portion 19 are connected and attached by male and female fitting.
[0034]
Here, the construction method of the repair structure of the ALC outer wall according to the present invention will be briefly described. First, as shown in FIG. 12, the through-hole C is formed from the surface side of the ALC outer wall B using a device such as a hole saw at an arbitrary pitch on the ALC outer wall B along the position where the base material A is disposed. At this time, as the pitch of the through holes C, the horizontal pitch P = 600, 900, 1200, about 1500 mm, and the vertical pitch L varies depending on the type of building, but is generally the height of one layer. It is about 3500 mm.
[0035]
Next, as shown in FIG. 13, the outer member D1 of the connecting base material D is inserted into the through-hole C, and the outer bottom portion 1 is brought into contact with the web of the H-type steel material that is the base material A. And attach with the fixture β. At this time, care should be taken that the outer periphery of the outer member D1 does not touch the through hole C so as not to apply a load to the ALC outer wall B.
[0036]
Then, as shown in FIG. 14, the inner member D2 is screwed and attached to the outer member D1 while adjusting the unevenness. At this time, if the tool 21 such as a screwdriver is inserted into the tool locking hole 6 of the inner member D2 and rotated, the operation becomes easier.
[0037]
Next, as shown in FIG. 15, a sheet material F is laid so as to cover the through hole C, the inner bottom surface 2 of the inner member D2, and the surface of the ALC outer wall B. At that time, the sheet material F may be fixed to the inner member D1 using the fixing tool β.
[0038]
Next, as shown in FIG. 16, the groove portion 13 of the long horizontal trunk edge E1 is fixed via a fixture β. And as shown in FIG. 17, the vertical trunk edge E2 is fixed to the horizontal trunk edge E1 at intervals of the pitch P1, using the connecting metal fittings H1 and H2. The pitch P1 at this time is determined by the necessary trunk edge pitch of the dry wall material G to be attached, the wind pressure strength due to the ground height, and the like, for example, 600, 900, 1200, 1500, 2000 mm, and the like. 16 and 17, the sheet material F is indicated by a one-dot chain line for convenience.
[0039]
Finally, as shown in FIG. 1, a horizontal type dry wall material G is attached to the lip portion 14 of the vertical trunk edge E2 by using a fixture β, and the repair is completed. Of course, although not shown, a new outer wall surface is formed by constructing various accessories such as a draining material, a starter material, a stiffener material, a protruding corner material, a corner material, an opening member, and a sealing material as required. is there.
[0040]
What has been described above is one embodiment of the repair structure of the ALC outer wall according to the present invention, but a structure using members as shown in FIGS.
[0041]
18 shows an example of deformation of the cross-sectional shape of the trunk edge E, and FIG. 18A shows an example of the trunk edge E formed by bending one member into a predetermined shape by roll forming. . FIG. 18B is an example of the trunk edge E formed by integrating two U-shaped groove steel members 22 and the flat steel member 9 by welding to form a predetermined shape. FIG. 18C is an example of the trunk edge E made only of the hat-type steel material 7.
[0042]
19 to 22 are sectional views showing other examples of the dry wall material G, and FIGS. 19A to 19D are drop-types, examples of the dry wall material G mainly used for horizontal stretch, 20 (a)-(c) is an example of the dry-type wall material G which is a plug-in type and is mainly used for vertical stretching.
[0043]
21 is a sectional view showing an example of a large double-sided metal sandwich panel. In particular, FIG. 21 (b) shows a fireproof packing having waterproof and fireproof properties in the male connecting portion 18. This is an example in which a waterproof sealant 24 is interposed in the female connecting portion 19 to improve the waterproofness and fire resistance of the connecting joint.
[0044]
Furthermore, the dry wall material G shown in FIG. 21B is an example in which incombustible members 25 arbitrarily formed so as to match the shapes of the male connecting portion 18 and the female connecting portion 19 are mounted in each connecting portion. The non-combustible member 25 improves the fire resistance and fire resistance of the connection joint formed by the dry wall materials G, and fills the ends of the male connection portion 18 and the female connection portion 19. Therefore, the lack of the core material 17 at the end of the dry wall material G is prevented, and the foamability and spreadability of the core material 17 are also improved. The incombustible member 25 is made of one or more incombustible members such as a calcium silicate plate, a high-density phenolic resin plate, a wood wool cement plate, a rock wool plate, and an aluminum hydroxide plate.
[0045]
A dry wall material G shown in FIG. 22 is an example of a box-type sandwich panel in which the front surface material 15 and the back surface material 16 are formed in a square shape or a rectangular shape.
[0046]
FIG. 23 shows an example of a structure in which a gap ΔT is formed between the surface of the ALC outer wall B and the body edge E by adjusting the screw connection between the outer member D1 and the inner member D2 of the connecting base material D. .
[0047]
FIG. 24 shows an example of the mounting arrangement of the trunk edge E when the dry-type wall material G is a vertically stretched mold. In this case, the intermediate horizontal trunk edge is arranged at a desired arbitrary pitch between the vertical trunk edges E2. By attaching and arranging E3, the horizontal trunk edge E1 and the intermediate horizontal trunk edge E3 function as the base of the dry wall material G. In this case, an L-shaped angle member, a hollow square pipe, or the like can be used for the intermediate horizontal trunk edge E3.
[0048]
【The invention's effect】
As described above, according to the repair structure of the ALC outer wall according to the present invention, (1) since it is not necessary to dismantle the existing ALC outer wall, the construction man-hour can be omitted, and the construction period can be greatly shortened. Moreover, there will be no hindrance to residence and use during construction. (2) Since a new outer wall is formed on the existing ALC outer wall, construction is easy and cost can be saved. (3) A double wall structure consisting of an existing ALC outer wall and a new dry-type wall material, and a structure rich in heat insulation, soundproofing and fireproofing. (4) By forming a through-hole in the outer wall of the ALC, the builder can directly check the base material from the surface side of the ALC outer wall, and the attachment of the connected base material to the base material is ensured. The installation strength of the dry wall material does not deteriorate. (5) By making the connecting base material into two members and having an expansion / contraction function, it is possible to easily adjust the unevenness of the base material, making the construction easier, and improving the aesthetics of the dry wall material. . (6) Since the connecting base material is a take-out beam structure, it does not touch any through-holes or existing ALC outer wall, so it can be repaired without applying any load (load) to the existing ALC outer wall. The mounting strength of the material is sufficient and the ALC outer wall is not damaged. (7) The sheet material functions as a protective material for the ALC outer wall. Due to external pressure such as earthquake, the old ALC outer wall itself and the through-holes cause the ALC outer wall to collapse and splinter debris. Can be prevented, and the waterproofness, airtightness, heat insulation, and strength deterioration lost by filling the through-hole and forming the through-hole can be supplemented. There are features and effects.
[Brief description of the drawings]
FIG. 1 is an explanatory view showing a representative 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 connecting base material used in the present invention.
FIG. 4 is an explanatory view showing an example of an outer member constituting a connection base material.
FIG. 5 is an explanatory view showing an example of an inner member constituting a connection base material.
FIG. 6 is an explanatory diagram showing an example of a sheet material.
FIG. 7 is an explanatory view showing an example of a trunk edge.
FIG. 8 is an explanatory view showing an example of a connecting metal fitting.
FIG. 9 is an explanatory view showing an example of connection between a horizontal trunk edge and a vertical trunk edge.
FIG. 10 is an explanatory view showing an example of connection between a horizontal trunk edge and a vertical trunk edge.
FIG. 11 is an explanatory view showing an example of a dry wall material.
FIG. 12 is an explanatory view showing an example of a construction procedure of the repair structure of the ALC outer wall according to the present invention.
FIG. 13 is an explanatory view showing an example of a construction procedure of the repair structure of the ALC outer wall according to the present invention.
FIG. 14 is an explanatory diagram showing an example of a construction procedure of the repair structure of the ALC outer wall according to the present invention.
FIG. 15 is an explanatory diagram showing an example of a construction procedure for the repair structure of the ALC outer wall according to the present invention.
FIG. 16 is an explanatory view showing an example of a construction procedure for the repair structure of the ALC outer wall according to the present invention.
FIG. 17 is an explanatory diagram showing an example of a construction procedure for the repair structure of the ALC outer wall according to the present invention.
FIG. 18 is an explanatory view showing another example of the trunk edge.
FIG. 19 is an explanatory view showing another example of a dry wall material.
FIG. 20 is an explanatory view showing another example of a dry wall material.
FIG. 21 is an explanatory view showing another example of a dry wall material.
FIG. 22 is an explanatory view showing another example of a dry wall material.
FIG. 23 is an explanatory diagram showing another example of the repair structure of the ALC outer wall according to the present invention.
FIG. 24 is an explanatory view showing another example of the mounting arrangement of the trunk edge.
[Explanation of symbols]
β Fixture a Angle b Vertical cover plate c Filling joint material A Base material B ALC outer wall C Through hole D Connection base material D1 External material D2 Inner member E Trunk edge E1 Horizontal trunk edge E2 Vertical trunk edge E3 Intermediate horizontal trunk edge F Sheet Material G Dry type wall material H1 Connecting bracket H2 Connecting bracket 1 Outer bottom 2 Inner bottom 3 Male thread groove 4 Female thread groove 5 Lower hole 6 Tool locking hole 7 Hat type steel material 8 Head 9 Flat steel material 10 Connecting tongue 11 Lower hole 12 Side part 13 Groove part 14 Lip part 15 Surface material 16 Back surface material 17 Core material 18 Male connection part 19 Female connection part 20 Seal material 21 Tool 22 Groove type steel material 23 Fireproof packing material 24 Waterproof sealing material 25 Nonflammable member

Claims (1)

A through hole is provided in the existing ALC outer wall, and a connecting base material composed of an outer member and an inner member is inserted into the through hole, and one end of the outer member of the connecting base material is attached to the existing ALC outer wall. The other end of the outer member and one end portion of the inner member are connected with a telescopic function, and the other end of the inner member is connected to the body via a sheet material disposed on the ALC outer wall surface. A renovation structure of the outer wall of the ALC, which is fixed to the edge and has a new dry wall material fixed to the trunk edge.

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