JP3719549B2 - Exterior wall structure - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to an outer wall structure at the time of renovation of an existing outer wall and at the time of new construction.
[0002]
[Prior art]
Conventionally, as this type of external wall structure, in the case of (1) renovation, a dry wall material was constructed directly on an existing wall of mortar or concrete or via a vertical trunk edge. (2) In the case of a new construction, it was a structure in which a dry wall material was simply constructed on the main pillar and the studs via a waterproof sheet and a vertical trunk edge.
[0003]
[Problems to be solved by the invention]
However, in such an outer wall structure, at the time of (1) refurbishment, existing pillars and foundations are partially corroded and may not exhibit the conventional strength, and this defect is difficult to see from the existing wall. In some cases, a new wall could not be found and a new wall was formed on the existing wall without knowing it. (2) In the new construction, the strength of the wall is improved by putting a gap between the pillars, but the wall magnification (the strength of the wall surface) is still insufficient.
[0004]
[Means for Solving the Problems]
In order to eliminate such drawbacks, the present invention provides a plurality of metal band-like reinforcing plates for reinforcing the strength from the foundation to the base, the girder, the eaves girder, or the twill beam that constitute the frame, and thereby, (1) ▼ When renovating an existing wall with a new wall, the strength of the entire building can be improved while renovating. (2) The present invention also proposes an outer wall structure that can easily improve the wall magnification even when a new building is constructed.
[0005]
【Example】
Hereinafter, an embodiment of the outer wall structure according to the present invention will be described in detail with reference to the drawings. 1A and 1B, A is a building frame, B is an existing wall, C is a reinforcing plate, D is a new wall, E is a foundation, and F is an accessory.
[0006]
As shown in FIG. 1B, the frame A is a general structure composed of a main pillar 1 extending in the vertical direction, an inter-column 2, and a base 3, eaves girder, or span beam 4 extending in the horizontal direction. Of course, these are names in buildings having a wooden structure, and in a steel structure, H-type steel, square steel, C-type steel, etc. are arranged at these positions. In addition, in FIG.1 (b), the existing wall B is shown with the dashed-dotted line for convenience, and is abbreviate | omitted.
[0007]
In addition, the existing wall B is formed of, for example, a wood slider, a waterproof sheet, a lath sheet, and a mortar wall material in this order on the outer surface of the casing A, or is provided with a torso edge on the casing A so as to be waterproof. Sheets, metal siding, ceramic siding, ALC panels, tiles, those made of dry wall materials such as PVC extrusion siding, etc., and other concrete walls.
[0008]
Further, as shown in FIGS. 1 (a) and 1 (b), the reinforcing plate C is diagonally arranged on the existing wall B from the foundation F to the eaves girder or the girder 4 via the base 3, the main pillar 1, and the inter-column 2. As shown in the figure, two or more are arranged so as to intersect with each other. The reinforcing plate C is fixed at the lower end with a fixture α such as a concrete nail, a concrete anchor, a concrete nail, a nail, or a screw screw, and its upper end is fixed to the eaves or the end beam 4 with the fixture α. It is to be fixed. Of course, the strength can be further improved by fixing the main pillar 1, the intermediate pillar 2, and the base 3 crossing the reinforcing plate C with the fixture α.
[0009]
By providing the reinforcing plate C, it has the function of bracing that improves the strength of the old frame A and the existing wall B, and part of the main pillar 1, the intermediate pillar 2, and the base 3 are corroded. Even if there is a weak point in strength, it also has a function to compensate for it.
[0010]
1 (a) and 1 (b) show the outer wall structure at the time of renovation. At the time of new construction, only the existing wall B does not exist in FIGS. 1 (a) and (b). It becomes a similar structure, and by arranging the reinforcing plate C on the housing A at the time of new construction, the wall magnification can be easily improved, and a building having excellent durability and earthquake resistance can be obtained.
[0011]
Further, as shown in FIG. 2, the reinforcing plate C is, for example, a narrow and long thin metal plate (steel, stainless steel, titanium, aluminum / zinc alloy plated steel plate, enamel steel plate, clad steel plate, laminate (vinyl chloride steel plate, etc.)). Steel plates, sandwich steel plates, galvalume steel plates, etc.) and are made of metal strips.
[0012]
By making the reinforcing plate C made of metal, the wall magnification can be greatly improved due to the inherent stickiness and tensile strength of the metal, and by making the reinforcing plate C into a thin plate shape, the reinforcing plate C is doubled. Even if they are arranged in triplicate, the new wall can be directly constructed without disturbing its thickness.
[0013]
The new wall D is made of a metal siding material, or a dry outer wall material made of a ceramic siding material, a PVC extrusion siding material, an ALC panel, a tile, a metal panel, etc., and particularly from a metal thin plate as shown in FIG. A metal siding in which a core material 7 made of a synthetic resin foam is sandwiched between a surface material 5 and a back material 6 made of a sheet-like material is preferable because it is lightweight and excellent in strength and easy to construct.
[0014]
In addition, as shown in FIGS. 1A and 1B, the new wall D is directly connected to the main pillar 1 from the reinforcing plate C and the existing wall B at the time of renovation and directly from above the reinforcing plate C at the time of new construction. , Which are sequentially attached to the housing A such as the intermediary pillar 2 via the fixture α, and further improve the design, heat insulation, soundproofing, fireproofing, etc., with many exterior surfaces of the building. Of course, when the new wall D is formed, an accessory F such as a drainer, a starter, a stop edge, a joiner, a protruding corner, an entering corner, or the like is disposed as necessary.
[0015]
Next, the construction method of the outer wall structure according to the present invention will be described. First, as shown in FIGS. 1 (a) and 1 (b), on the existing wall B made of a mortar wall or the like for renovation, on the frame A for new construction, a long length as shown in FIG. Two strip-shaped reinforcing plates C are arranged so as to cross diagonally from the four corners of the wall surface of the building, and the lower end portion of the reinforcing plate C is set to the base E and the upper end portion is attached to the eaves girder or the girder 4 by the fixture α. Fix each one. And the part of the main pillar 1, the cross pillar 2, and the base 3 which cross | intersect the reinforcement board C is each fixed with the fixing tool (alpha), and the intensity | strength of the housing A and the existing wall B is reinforced and improved.
[0016]
Then, a new wall D made of a metal siding material as shown in FIG. 3 is sequentially attached and constructed from the reinforcing plate C to the housing A such as the main column 1 and the inter-column 2 using a fixture α such as a nail. It is. In addition, a cosmetic mortar and a makeup spraying material can be constructed on the lower end of the reinforcing plate C appearing on the surface of the foundation E and the foundation E, and concealed inside to improve the beauty.
[0017]
What has been described above is one embodiment of the outer wall structure according to the present invention, and the structure shown in FIGS. 4 to 14 or each member can be used.
[0018]
That is, FIGS. 4A to 4F show other examples of dry wall materials used for the new wall D, FIGS. 4A to 4C are metal siding, and FIG. PVC siding (formed with hard resin surface material 5), FIGS. 4 (e) and 4 (f) show cross-sectional shapes of ceramic siding.
[0019]
5A is an example in which a waterproof sheet G is interposed between the reinforcing plate C and the new wall D, and FIG. 5B is an attachment base of the new wall D between the reinforcing plate C and the new wall D. FIG. 6 shows an example in which the trunk edge 8 is interposed, and FIG. 6 shows an example in which the new wall D is a vertically stretched dry wall material.
[0020]
FIG. 7A shows the number of reinforcing plates C arbitrarily increased depending on the area of the existing wall B to be repaired. FIG. 7B shows an example of the arrangement of the reinforcing plate C when the existing wall B to be repaired has openings β such as windows and entrances. The reinforcing plates C are provided on the left and right of the opening β. By arranging the reinforcing plates C extending horizontally at the upper and lower portions of the opening β, the strength can be improved even if the existing wall B has the opening β. is there.
[0021]
FIG. 8 shows an example when the building has two or more floors. When the building has two or more floors, a case A in which a torso 9 is interposed between the base 3 and the eaves girder or the girder 4 is shown. It is an example which shows the structure of. In FIG. 7 and FIG. 8, the existing wall B is indicated by a one-dot chain line for convenience, and the existing wall B does not exist at the time of new construction.
[0022]
FIG. 9 shows how to fix the portion where the reinforcing plate C intersects the casing A extending in the vertical direction. For example, in the case of the main pillar 1 having a width as shown in FIG. A three-point fixture α is placed. Further, in the case of the narrow pillar 2 as shown in FIG. 9B, the two fixtures α are respectively fixed in the vertical direction.
[0023]
FIG. 10 shows a portion where the upper end portion of the reinforcing plate C is fixed to the eaves girder or the cross beam 4 of the frame A. The upper end portions are cut out and about 5 places are fixed by the fixing tool α. In addition, the eaves girder or the girder 4 is fixed to about three places where the main pillar 1 intersects.
[0024]
FIG. 11 shows a mounting bracket H used for fixing the lower end portion of the reinforcing plate C to the foundation E without the slack of the reinforcing plate C. That is, the mounting bracket H is made of a rectangular plate-shaped metal object, has three lower lower holes 10 at the lower end portion, cuts out a substantially central portion of the upper end portion, and forms tongue pieces 14 on both sides. 14, two upper lower holes 11 are formed, and further, a hollow hole 12 is formed at the center of the mounting bracket H, and a notch 13 is formed at the center of the side.
[0025]
Next, how to use the mounting bracket H will be described. First, as shown in FIG. 12 (a), cut grooves 15 are formed on the lower end of the reinforcing plate C from the respective sides, and as shown in FIG. 12 (b), The tongue piece 14 of the mounting bracket H is inserted into the cut groove 15 of the reinforcing plate C. Then, as shown by the arrow in FIG. 12B, the mounting bracket H is folded to some extent from the viewpoint of the hollow hole 12 and the notch 13 of the mounting bracket H.
[0026]
In this state, as shown in FIG. 13, the mounting bracket H is temporarily fixed to the foundation E using the fixture α through the lower lower hole 10 in the middle of the mounting bracket H. Next, as shown in FIG. 14 (a) and FIG. 14 (b) which is a cross-sectional view of FIG. 14 (a), fixing is performed from the upper lower hole 11 formed in the tongue piece 14 of the mounting bracket H to the lower lower hole 10. Insert the tool α and gradually push it into the foundation E to fix it. Then, at the same time that the mounting bracket H is gradually folded, the reinforcing plate C is pulled, and the reinforcing plate C can be fixed without bending.
[0027]
The mounting bracket H can be used not only at the lower portion of the reinforcing plate C (usually, the mounting bracket H is used only on the foundation E side so as not to work at a high place) but also at the upper portion.
[0028]
【The invention's effect】
As described above, according to the outer wall repair structure according to the present invention, (1) it is possible to easily improve the strength of the wall at the time of new construction or at the time of repair, and to make the building excellent in durability and earthquake resistance. Can do. {Circle around (2)} Since the reinforcing plate is attached to the foundation, the strength can be improved without being affected by even a portion of the base or pillar having corrosion or strength weak points. {Circle around (3)} Since the reinforcing plate is thin, a new wall can be easily formed without worrying about the thickness or level difference even when stacked. (4) Since the reinforcing plate is made of metal, the building is not destroyed at a stretch even when external pressure is applied, because the tension unique to the metal is strong. There are features and effects.
[Brief description of the drawings]
FIG. 1 is an explanatory view showing a typical example of an outer wall structure according to the present invention.
FIG. 2 is an explanatory view showing an example of a reinforcing plate used in the present invention.
FIG. 3 is an explanatory view showing an example of a new wall used in the present invention.
FIG. 4 is an explanatory diagram showing another example of a new wall.
FIG. 5 is an explanatory view showing another example of the outer wall structure according to the present invention.
FIG. 6 is an explanatory view showing another example of the outer wall structure according to the present invention.
FIG. 7 is an explanatory view showing another example of the outer wall structure according to the present invention.
FIG. 8 is an explanatory view showing another example of the outer wall structure according to the present invention.
FIG. 9 is an explanatory diagram showing an example of how to attach a reinforcing plate.
FIG. 10 is an explanatory diagram showing an example of how to attach a reinforcing plate.
FIG. 11 is an explanatory view showing an example of a mounting bracket that can be used when mounting a reinforcing plate.
FIG. 12 is an explanatory diagram showing an example of how to attach the mounting bracket.
FIG. 13 is an explanatory view showing an example of how to attach the mounting bracket.
FIG. 14 is an explanatory view showing an example of how to attach the mounting bracket.
[Explanation of symbols]
α Fixture β Opening A Housing B Prefabricated wall C Reinforcement plate D New wall E Foundation F Property G Waterproof sheet H Mounting bracket 1 Main column 2 Interstitial column 3 Base beam eaves or girder 5 Surface material 6 Back surface material 7 Core material 8 Body edge 9 Body insertion 10 Lower lower hole 11 Upper lower hole 12 Hollow hole 13 Notch 14 Tongue piece 15 Notch groove

Claims (2)

On the existing wall, there is a metal strip-shaped reinforcing plate that extends diagonally from the foundation of the building or structure to the eaves girder or the end beam, and at least the upper end of the reinforcing plate is fixed to the eaves girder or the end beam via the existing wall. The outer wall structure is characterized in that a lower end is fixed to a foundation, and a new wall is formed on the reinforcing plate so as to cover the existing wall. A metal band-shaped reinforcing plate extending obliquely from the foundation of the building or structure to the eaves or the twill beam is disposed, and at least the upper end of the reinforcing plate is fixed to the eaves or the end beam, and the lower end is the foundation The outer wall structure is characterized in that a wall is formed on the reinforcing plate.

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