JP2017002568A - Mounting construction method of cellular concrete panel to wooden outer wall and mounting structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mounting construction method of a panel, the method that facilitates construction even in a narrow ground with a narrow vacant space of an outer wall outside in mounting of an outer wall panel to a wooden building, while securing a predetermined performance such as fire resistance or outer surface strength.SOLUTION: A mounting construction method to a wooden outer wall is provided for mounting a panel comprising lightweight cellular concrete to an underlying wood for constituting a skeleton in an outer wall of a wooden building. The mounting construction method includes: (1) a step of fixing an upper mounting bracket on an upper part of a first panel and a second panel disposed in an upper side of the first panel, and fixing a lower mounting bracket engageable with the upper mounting bracket in the lower part of the first panel and the second panel; (2) a step of fixing the upper mounting bracket of the first panel to the underlying wood using a wood screw; and (3) a step of making the upper mounting bracket of the first panel fit to the lower mounting bracket of the second panel.SELECTED DRAWING: Figure 9

Description

  The present invention relates to a method for mounting a cellular concrete panel, which is a dry outer wall, to a wooden outer wall and a mounting structure.

Wooden exterior walls include dry exterior walls produced at the factory and wet exterior walls made at the construction site. Examples of dry outer walls include ALC (Autoclaved Lightweight Aerated Concrete) panels, GRC (Glassfiber Reinforced Cement) panels, extruded cement boards, fiber reinforced cement boards, composite metal siding and ceramic siding.
In recent years, from the viewpoint of urban disaster prevention, there is an increasing need for buildings with high fire resistance in confined areas such as densely built-up areas such as incombustibility of densely populated areas in cities and the spread of fireproof buildings. On the other hand, with the promotion of wooden construction, there is a need to build a large fire-resistant wooden building on a small site as much as possible. To that end, a lightweight and fire-resistant building material such as ALC is required. .
Since the ALC panel has high heat insulation and fire resistance, it is often used as an outer wall panel of a steel structure building or a wooden structure building. In particular, an ALC panel having a thickness of 50 mm or 50 mm or less is easy to handle, and is used by being fixed to a wooden column with, for example, a nail or a screw (for example, see Non-Patent Document 1).

Here, a mounting structure when a relatively thin ALC panel is fixed to a building will be described with reference to the drawings.
FIG. 10 shows a structure for fixing the ALC panel 51 from the outdoor side. As shown in FIG. 10, a method of fixing the ALC panel 51 to the base wood 50 by driving a screw 52 (wood base screw) so as to penetrate the ALC panel 51 from the outdoor side is widely adopted. At this time, in order to prevent the screw head from being exposed on the surface of the ALC panel, a general construction method is to tighten the screw head so that it is indented by about 7 to 10 mm from the panel surface, and to stuff a special repair material into this recess. It is.

However, with this construction method, the space outside the outer wall is small (narrow), and when working in confined areas, the working space for driving long wood base screws from the outside is narrow, and the wood base screws are driven in. There was a problem that it was difficult. In addition, the above-described repair of the dent has to be performed in a narrow space, and there is a problem that it is difficult to construct.
Furthermore, in order to increase the fire resistance of a wooden building, it is effective that the panel does not fall off in the event of a fire. To that end, using bonding materials (wood screws, wood screws, etc.) that penetrate the panel, The panel is fixed to the base wood. However, if the outer heat insulating construction method or the outer wall panel becomes thick, the length of the necessary joining material becomes longer, and the construction in a narrow open space becomes difficult.
In recent years, there are an increasing number of sites with a small (narrow) space around construction buildings, and there is a demand for a construction method in which any panel can be easily constructed even under such conditions.

The Architectural Institute of Japan “Standards for Building Work / Comments JASS 27 Dry Wall Construction” June 15, 2011, page 67

  The present invention has been proposed in view of such a conventional situation, and in attaching an outer wall panel to a wooden building, predetermined performance such as fire resistance and out-of-plane strength even in a narrow space where the empty space outside the outer wall is narrow. It is an object of the present invention to provide a panel mounting construction method, a mounting structure, and a mounting bracket that are easy to construct while securing the above.

In the present invention, when attaching the outer wall panel, the upper mounting bracket and the lower mounting bracket are attached to the panel in advance, the upper mounting bracket is screwed to the base wood, and the lower mounting bracket is fitted to the upper mounting bracket. .
[1]
In the outer wall of a wooden building, it is a wooden outer wall mounting construction method in which a panel made of lightweight cellular concrete is attached to the base wood constituting the frame,
(1) An upper mounting bracket is fixed to the upper portion of the first panel and the second panel disposed above the first panel, and the upper mounting bracket is fitted to the lower portion of the first panel and the second panel. Fixing the lower mounting bracket that can be matched,
(2) fixing the upper mounting bracket of the first panel to the base wood using a wood screw;
(3) A method for attaching a wooden outer wall of a cellular concrete panel, comprising the step of fitting the upper mounting bracket of the first panel and the lower mounting bracket of the second panel.
[2]
The panel has embedded U-shaped or L-shaped embedded brackets at two or more locations on the panel, and the upper mounting bracket and the lower mounting bracket are mounted on the embedded bracket with screws for brackets. The method for attaching a wooden outer wall of a cellular concrete panel according to [1], which is fixed by the method.
[3]
The embedded metal fitting is disposed between a pair of mesh reinforcing members embedded at a predetermined interval in the thickness direction inside the panel, and is fixed so that at least one mesh reinforcing member is in contact with one surface. 1] or [2] A method for attaching a wooden outer wall of a cellular concrete panel according to [2].
[4]
The embedded metal fittings are arranged in the vertical direction of the panel, the upper mounting metal fittings are fixed to the upper part of the embedded metal fittings, and the lower mounting metal fittings are fixed to the lower part of the embedded metal fittings. ] The wooden outer wall mounting construction method of the cellular concrete panel according to any one of [3] to [3].
[5]
The wooden outer wall mounting construction method according to [2], wherein the metal fitting screw is a drill screw.
[6]
The upper mounting bracket is made of a substantially rectangular sheet metal, has a through hole for fixing to the panel on one end side, and has at least one notch inserted in the longitudinal direction on the other end side as a boundary. A part of the other end side is bent so as to be continuous with the one end side in parallel with each other through a step, and a through hole for fixing to the base wood side is provided in the bent part. Have
The lower mounting bracket is made of a sheet metal in which one end side and the other end side are continuous in parallel with each other through a step in the longitudinal direction, and has a through hole for fixing to the panel on the one end side,
In the step (3). By inserting the other end side of the lower mounting bracket into a slit defined between a bent portion and a flat portion on the other end side of the lower mounting bracket, the upper mounting bracket, The wooden outer wall mounting construction method according to any one of [1] to [5], wherein the lower mounting bracket is fitted.
[7]
The wooden structure of a cellular concrete panel according to any one of [1] to [6], wherein an edge of the one end side is bent in the same direction as the step in the upper mounting bracket and the lower mounting bracket. Exterior wall mounting method.
[8]
The method of attaching a wooden outer wall of a cellular concrete panel according to any one of [1] to [7], wherein the steps (1) to (3) are repeated a plurality of times.
[9]
The construction method for attaching a wooden outer wall of a cellular concrete panel according to any one of [1] to [8], wherein the lightweight cellular concrete is lightweight cellular concrete (ALC) cured by an autoclave.
[10]
In the outer wall of a wooden building, it is a wooden outer wall mounting structure for attaching a panel made of lightweight cellular concrete to the base wood constituting the frame,
A first panel and a second panel disposed above the first panel;
An upper mounting bracket fixed to the upper part of the first panel and the second panel, a lower mounting bracket fixed to the lower part of the first panel and the second panel, and engageable with the upper mounting bracket;
The upper mounting bracket of the first panel is fixed to the base wood with a wood screw, and the upper mounting bracket of the first panel and the lower mounting bracket of the second panel are fitted. A wooden structure for attaching external wall of cellular concrete panels.
[11]
On the outer wall of a wooden building, it is a mounting bracket for attaching a panel made of lightweight cellular concrete to the base wood constituting the frame,
It is made of a substantially rectangular sheet metal, has a through hole for fixing to the panel on one end side, and at least one notch inserted in the longitudinal direction on the other end side, part of the other end side Is bent so as to be continuous with the one end side in parallel with the one end side through a step, and an upper mounting bracket having a through hole for fixing to the base wood side in the bent portion,
One end side and the other end side are made of sheet metal that is continuous in parallel with each other through a step in the longitudinal direction, and includes a lower mounting bracket having a through hole for fixing to the panel on the one end side,
By inserting the other end side of the lower mounting bracket into a slit defined between a bent portion and a flat portion on the other end side of the lower mounting bracket, the upper mounting bracket, Mounting bracket that fits with the lower mounting bracket.

  In the present invention, the mounting bracket is fixed to the panel with the bracket screw in advance, and the mounting bracket is fastened to the base wood with the wooden screw.Therefore, a long screw screwed from the outside is not necessary even in a narrow construction site, and Since there is no need to repair the screw holes from the outside, it is easy to construct even in narrow construction sites, and the finish paint can be finished cleanly. Only the upper mounting bracket is screwed to the wood base, and the panel is hung only by fitting the lower mounting bracket to the upper mounting bracket, ensuring in-plane deformation followability and forming an outer wall with reduced earthquake damage. . As described above, in the present invention, it is possible to provide a panel mounting construction method and a mounting structure that can be easily constructed while ensuring predetermined performance such as fire resistance and out-of-plane strength even in a narrow area.

It is a perspective view which shows one structural example of the panel used by this invention. It is sectional drawing which shows one structural example of the panel used by this invention. It is sectional drawing which shows one structural example of the panel used by this invention. It is a figure which shows one structural example of the upper attachment metal fitting used by this invention. It is a figure which shows one structural example of the lower attachment metal fitting used by this invention. It is a perspective view which shows the state which attached the upper and lower attachment bracket to the panel. It is sectional drawing which shows the state which attached the upper and lower attachment metal fittings to the panel. It is sectional drawing which shows the state which fixed the 1st panel to the base wood. It is sectional drawing which shows the state which fitted the upper attachment metal fitting of the 1st panel, and the lower attachment metal fitting of the 2nd panel. It is a figure which shows the attachment construction method of the conventional ALC panel.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In addition, in the attachment construction method and the attachment structure of the present embodiment described below, when attaching the panel 1 constituting the outer wall of the building to the pillar (underlying wood 30) constituting the frame, the long side direction of the panel 1 is set laterally. It is a so-called horizontal structure that is arranged in the direction and arranged vertically. The pillars that make up the frame are wooden and include main pillars and studs. Therefore, the panel 1 is attached to the pillar through the attachment fittings at a plurality of positions in the longitudinal direction.

The construction method for a wooden outer wall according to the present invention is a construction method for a wooden outer wall in which the panel 1 made of lightweight cellular concrete is attached to the base wood 30 constituting the casing in the outer wall of the wooden building,
(1) The upper mounting bracket 10 is fixed to the upper part of the first panel 1A and the second panel 1B arranged above the first panel 1A, and the upper part is attached to the lower part of the first panel 1A and the second panel 1B. Fixing the lower mounting bracket 20 that can be fitted to the bracket 10;
(2) fixing the upper mounting bracket 10 of the first panel 1A to the base wood 30 using a wood screw;
(3) A step of fitting the upper mounting bracket 10 of the first panel 1A and the lower mounting bracket 20 of the second panel 1B.
The present invention proposes a construction method that is easy to construct even in a narrow space with little (narrow) space outside the outer wall. An embedded metal fitting 4 is embedded in the panel 1 in advance, and four or more attachment metal fittings are fastened to the embedded metal fitting 4 in advance so as to be vertically aligned with the panel 1. Then, the upper mounting bracket 10 of the first panel 1A is fixed to the base lumber 30 with screws for wood, and the upper mounting bracket 10 and the lower mounting bracket 20 of the second panel 1B are fitted and mounted. This is the panel mounting method.
In the present invention, the upper mounting bracket 10 and the lower mounting bracket 20 are screwed to the panel 1 in advance, and the upper mounting bracket 10 is fastened to the base wood 30 with a wood screw 9 (wood screw) (screw fastening). Therefore, it does not require long screws (screws) to be screwed from the outside even in narrow construction sites, and there is no need to repair screw holes from the outside, so construction is easy even in narrow construction sites, and finish coating It can be finished neatly. Only the upper mounting bracket 10 is screwed to the base wood 30 and the lower mounting bracket 20 is fitted to the upper mounting bracket 10 to hang the panel 1, ensuring in-plane deformation followability and reducing earthquake damage. The outer wall is constructed.

1 to 3 are diagrams showing one configuration example of a panel used in the present invention, FIG. 1 is a perspective view, and FIGS. 2 and 3 are sectional views.
In this embodiment, the panel (outer wall panel) 1 is made of lightweight cellular concrete, preferably lightweight cellular concrete (ALC) cured by autoclave (high temperature and high pressure steam), and this panel 1 is a narrowly defined ALC, that is, JIS A5416. A panel composed of the corresponding ALC (ALC panel) is mainly referred to.
Such an ALC panel 1 includes a thick type (≧ 75 mm) and a thin type (<75 mm). In the present embodiment, a thin ALC panel is assumed as the ALC panel 1. The thickness of the ALC panel 1 used in this embodiment may be 50 mm, 37 mm, or 35 mm. The specific gravity of such an ALC panel 1 is, for example, 0.45 to 0.55, and the compressive strength is, for example, 3 N / mm ² or more. The ALC panel 1 is, for example, a rectangular plate having a thickness of 50 mm, a width of 600 mm, and a length of 1820 mm.

In the ALC panel 1 used in the present embodiment, a net-like reinforcing member 3 and an embedded metal fitting 4 are embedded. As shown in FIGS. 2 and 3, the ALC panel 1 includes a panel body 2 formed in a rectangular plate shape by ALC, and a pair of mesh reinforcements embedded in the panel body 2 at predetermined intervals in the thickness direction. The members 3a and 3b and the embedded metal fitting 4 fixed between the pair of mesh reinforcing members 3a and 3b are provided. In addition, in ALC panel 1 shown in FIG. 1, illustration of mesh-like reinforcement members 3a and 3b is omitted.
The net-like reinforcing members 3a and 3b are planar net-like members made of a metal lath, a wire lath, or the like, and a wire net, a lath net, an expanded metal, or the like can be used. For example, the wire diameter of the iron wire used for the wire mesh and the thickness of the lath mesh or the expanded metal may be determined in consideration of the reinforcing effect and workability at the time of drilling, and about 0.6 mm to 1.2 mm. preferable. The size of the mesh may be determined in consideration of the adhesion of the mesh reinforcing members 3a and 3b to the panel body 2 (ALC base material) or the interval between the through holes and the openings, and is preferably about 10 mm to 60 mm.
When the mesh reinforcing members 3a and 3b are lath nets, flat laths such as No. 3 and 4 or corrugated laths such as No. 1 and 2 can be employed.

As shown in FIGS. 2 and 3, the embedded metal fitting 4 has a U-shaped (FIG. 2) or L-shaped (FIG. 3) cross section, and at least one of the net-like reinforcing members 3a is L-shaped or It arrange | positions between both mesh-shaped reinforcement members 3a and 3b, and is fixed so that one surface of a U-shape may contact | connect. The embedded metal fitting 4 may be in contact with both of the net-like reinforcing members 3a and 3b. The width of one surface of the embedded metal fitting 4 is not particularly limited, but is, for example, 5 cm. As shown in FIG. 1, the embedded metal fitting 4 is arranged over the vertical direction of the panel 1 (here, the short side direction of the panel 1).
As will be described later, an upper mounting bracket 10 and a lower mounting bracket 20 are fixed to the embedded bracket 4 by a bracket screw 8. As the metal fitting screw 8, for example, a screw can be used. The upper mounting bracket 10 is fixed to the upper portion of the embedded bracket 4, and the lower mounting bracket 20 is fixed to the lower portion of the embedded bracket 4.
The embedded metal fittings 4 are embedded at least at two locations on both ends of the panel 1, and preferably at three locations in the central portion in addition to both ends. When high out-of-plane mounting strength is required, the number of the embedded metal fittings 4 (and the attachment metal fittings 10 and 20) may be increased.
Such an ALC panel 1 is obtained by embedding the net-like reinforcing members 3a and 3b and the embedded metal fitting 4 inside the panel body 2 at the stage of manufacturing the ALC panel 1 at a factory.

4A and 4B are views showing the lower mounting bracket 20, wherein FIG. 4A is a perspective view and FIG. 4B is a side view. The lower mounting bracket 20 is made of a sheet metal in which one end side 20a and the other end side 20b are continuous in parallel with each other through a step 20c, and has a through hole 21 for fixing to the ALC panel 1 on the one end side 20a.
In addition, a bent piece 22 is provided at the edge corner of the lower end fitting 20 on one end side 20a. The bending direction of the step 20c reaching the other end side 20b and the bending direction of the bent piece 22 are the same with respect to the surface of the one end side 20a. The shape of the bent piece 22 is not particularly limited, but can be formed by bending a sheet metal by pressing, and any shape can be adopted. The number of the bent pieces 22 may be provided in at least one place, but may be provided in two or more places. By making the bent pieces 22 into two or more places, the panel 1 can be supported at more parts and can be attached to the base wood 30 without wobbling.

The size of the lower mounting bracket 20 is not particularly limited, and is appropriately selected according to the required mounting strength. For example, as for the dimensions of the lower mounting bracket 20 shown in FIG. 4, the sheet metal thickness T is 1.0 mm, the width W is 60 mm, and the length L is 70 mm. Further, the height H _{1 of the} step 20c (the difference in height between the uppermost surface of the lower mounting bracket 20 and the upper surface of the other end side 20b) is the same as the sheet metal thickness T (1.0 mm in this example). The height H _{2 of} 22 (the difference between the uppermost surface of the lower mounting bracket 20 and the height of the upper surface of the bent piece 22) is twice the sheet metal thickness T (2.0 mm in this example).

  5A and 5B are views showing the upper mounting bracket 10, wherein FIG. 5A is a perspective view and FIG. 5B is a side view. The upper mounting bracket 10 is made of a substantially rectangular sheet metal, and has a through hole 11 for fixing to the ALC panel 1 on one end side 10a. Further, the other end side 10b has two cuts 12 inserted in the longitudinal direction, and the central part of the other end side 10b is parallel to each other through the one end side 10a and the step 10c with the cut 12 as a boundary. Are bent so as to be continuous with each other, and both ends are kept flat. The bent portion 13 at the center has a through hole 14 for fixing to the base wood 30.

Moreover, in the upper attachment metal fitting 10, the bending piece 15 is provided in the edge corner part of the one end side 10a. The bending direction and height of the step 10c reaching the bending portion 13 and the bending direction and height of the bent piece 15 are substantially the same with respect to the surface of the one end side 10a. Although the shape of the bending piece 15 is not particularly limited, it can be formed by bending a sheet metal with a press, and any shape can be adopted. The number of the bent pieces 15 may be provided at least at one place, but may be provided at two or more places. By making the bent pieces 15 into two or more places, the panel 1 can be supported at more parts and can be attached to the base wood 30 without wobbling.
The dimensions of the upper mounting bracket 10 are not particularly limited, and are appropriately selected according to the required mounting strength. For example, the upper mounting bracket 10 shown in FIG. 5 has a sheet metal thickness t of 1.0 mm, a width w of 60 mm, and a length l of 100 mm. Further, the height h _{1 of the} step 10c (difference between the upper surface of the bent portion 13 and the height of the uppermost surface of the one end side 10a) and the height h _{2 of the} bent piece ₁₅ (the upper surface and one end side of the bent piece 15) The difference from the height of the top surface of 10a is 2.0 mm.

  As will be described later, on the other end side 10 b of the upper mounting bracket 10, a slit 17 is defined between the bent portion 13 at the center portion and a portion 16 that continues flat on both sides. When the other end side 20b of the lower mounting bracket 20 is inserted, the upper mounting bracket 10 and the lower mounting bracket 20 are fitted.

  As shown in FIG. 6, these mounting brackets 10, 20 are connected to one end side 10 a. It is fixed with metal fitting screws 8 (for example, screws) inserted through the through holes 11 and 21 of 20a.

The construction method on site will be described.
(1) First, as shown in FIGS. 6 and 7, the upper mounting bracket 10 is fixed to the upper portion of the first panel 1A and the second panel 1B arranged on the upper side of the first panel 1A, and the first panel 1A is fixed. The lower mounting bracket 20 is fixed to the lower part of the second panel 1B. The mounting brackets 10 and 20 are fixed on the surface (the housing side) facing the base wood 30. The base wood 30 is, for example, a wooden pillar constituting a frame, but is not limited thereto.
By driving a metal screw 8 (screw) into the ALC panel 1 through the panel fixing through holes 11 and 21 provided on one end side 10a of the upper mounting bracket 10 and one end side 20a of the lower mounting bracket 20, The mounting bracket 10 and the lower mounting bracket 20 are fixed to the ALC panel 1. At this time, as shown in FIGS. 2B and 3B, the upper mounting bracket 10 and the lower mounting bracket 20 are fixed to the embedded bracket 4 embedded in the ALC panel 1 by the bracket screw 8. . By fixing the upper mounting bracket 10 and the lower mounting bracket 20 to the embedded bracket 4 instead of the ALC panel 1, it is possible to prevent a decrease in strength due to the collapse of the ALC around the bracket screw 8. The metal fitting screw 8 is preferably a drill screw (for example, a self-tapping screw when a screw is used). There is no need to make a pilot hole for the ALC panel 1 in advance, and the workability is improved.

As shown in FIG. 7, the lower mounting bracket 20 is fixed to the ALC panel 1 with the bracket screws 8 so that the one end side 20a faces upward and the bent other end side 20b protrudes toward the base wood 30 side. Is done. At this time, the height of the other end side 20 b is fixed so as to be slightly retracted from the lower end of the ALC panel 1. Further, a gap 23 is defined between the panel 1 and the other end 20b.
The upper mounting bracket 10 is fixed to the ALC panel 1 by the bracket screw 8 so that the one end side 10a faces downward and the bent portion 13 is convex toward the base wood 30 side. At this time, the step 10 c is fixed so as to be almost the same height as the upper end of the ALC panel 1, and the bent portion 13 protrudes upward from the upper end of the panel 1.

  The upper mounting bracket 10 and the lower mounting bracket 20 are fixed to two or more, preferably three or more, respectively, in the upper and lower portions of the ALC panel 1. In the example shown in FIG. 6, the mounting brackets 10 and 20 are fixed to the embedded brackets 4 embedded at least at both ends of the panel 1 and in addition to the central portion. When high out-of-plane mounting strength is required, the number of the embedded metal fittings 4 and the attachment metal fittings 10 and 20 may be further increased.

(2) Next, as shown in FIG. 8, the upper mounting bracket 10 of the first panel 1 </ b> A is screwed to the base wood 30.
The first panel 1 </ b> A is handled at a predetermined position for attachment to the base wood 30, and the upper mounting bracket 10 is screwed to the base wood 30.
The first panel 1 </ b> A is fixed to the base wood 30 by driving the wood screws 9 into the base wood 30 through the through holes 14 formed in the bent portion 13 on the other end side 10 b of the upper mounting bracket 10. As the wood screw 9, for example, a wood screw can be used.
The ALC panel 1 is attached to the base wood 30 not by passing through the panel 1 with a long screw (screw) from the outdoor side as in the conventional construction method, but only by fastening the upper mounting bracket 10 with the wood screw 9. Therefore, it can be installed even indoors and can be easily installed even in narrow construction sites.

(3) Then, as shown in FIG. 9, the upper mounting bracket 10 of the first panel 1A and the lower mounting bracket 20 of the second panel 1B are fitted.
By inserting the other end side 20b of the lower mounting bracket 20 into a slit 17 formed between the bent portion 13 and the flat portion 16 on the other end side 10b of the upper mounting bracket 10 from above. The upper mounting bracket 10 and the lower mounting bracket 20 are fitted.
Thus, the second panel 1B is hung on the first panel 1A attached to the base wood 30. The upper mounting bracket 10 of the second panel 1B is fixed to the base wood 30 with a wood screw 9 (wood screw).
By repeating the steps (1) to (3), the construction of the multi-stage panel 1 is completed.

In the outer wall panel mounting structure constructed as described above, the sheet metal side forming the mounting brackets 10 and 20 is in contact with the ALC panel 1 side, and the bent portion 13 and the bent pieces 15 and 22 are on the base wood 30 side. It will be in contact. Thereby, a gap 32 corresponding to the thickness of the metal fitting is defined between the ALC panel 1 and the base wood 30. The gap 32 can be used as a ventilation layer in the outer wall ventilation method. There is no need to provide a ventilating rim for the base wood 30 and the workability is improved.
Furthermore, in each of the upper mounting bracket 10 and the lower mounting bracket 20, the bracket is supported with respect to the base wood 30 by two bent pieces 15 and 22 in addition to the bending portion 13. 1 can be attached to the base wood 30 without wobbling. In addition, the gap 32 between the ALC panel 1 and the base wood 30 described above can be reliably ensured without being crushed.

Thus, in this construction method, the upper mounting bracket and the lower mounting bracket are attached to the embedded bracket embedded in the panel in advance. According to this, the upper mounting bracket is fastened to the wood base with screws without tightening a long wood screw or wood screw or the like from the outside as in the conventional construction method, and the lower mounting bracket is fitted to the upper mounting bracket. This completes the installation.
The panel is attached to the base wood only by fastening the upper mounting bracket with a wood screw, so that it can be installed even indoors and can be easily installed even in narrow construction sites. Further, by attaching the mounting bracket to the panel in advance, it can be constructed without damaging the outside of the panel, so that it can be constructed even in a narrow site and a clean finish is possible. By adopting such a construction method, construction can be performed not from the outside of the building but also from the inside of the building, and construction in a confined area that has been difficult to perform conventionally becomes possible.

As mentioned above, although embodiment of this invention has been described, this invention is not limited to these, In the range which does not deviate from the meaning of invention, it can change suitably.
For example, in the above-described embodiment, the explanation has been given by taking the example of the horizontal structure in which the long side direction of the panel is arranged in the horizontal direction, but the present invention is not limited to this, and the long side direction of the panel is set in the vertical direction. The present invention can also be applied to a vertically-arranged structure arranged in the above.
In the above-described embodiment, the case where the mounting bracket is directly driven into the base wood has been described as an example, but the present invention is not limited thereto, and a moisture-permeable waterproof sheet or the like is interposed therebetween. The mounting bracket may be driven into the base wood.

  The present invention can be easily constructed while ensuring predetermined performance such as fire resistance and out-of-plane strength even in a narrow space where the empty space around the building is narrow. This is suitable when building a building. The present invention also contributes to the promotion of the spread of wooden buildings and the incombustibility of urban areas.

DESCRIPTION OF SYMBOLS 1: ALC panel 1A: 1st panel 1B: 2nd panel 2: Panel main body 3a, 3b: Reticulated reinforcement member 4: Embedded metal fitting 8: Screw for metal fitting 9: Screw for wood 10: Upper attachment metal fitting 10a: One end side 10b: Other end side 10c: Step 11: Through hole 12: Notch 13: Bending part 14: Through hole 15: Bending piece 17: Slit 20: Lower mounting bracket 20a: One end side 20b: Other end 20c: Step 21: Through Hole 22: bent piece 30: base wood

Claims (11)

In the outer wall of a wooden building, it is a wooden outer wall mounting construction method in which a panel made of lightweight cellular concrete is attached to the base wood constituting the frame,
(1) An upper mounting bracket is fixed to the upper portion of the first panel and the second panel disposed above the first panel, and the upper mounting bracket is fitted to the lower portion of the first panel and the second panel. Fixing the lower mounting bracket that can be matched,
(2) fixing the upper mounting bracket of the first panel to the base wood using a wood screw;
(3) A method for attaching a wooden outer wall of a cellular concrete panel, comprising the step of fitting the upper mounting bracket of the first panel and the lower mounting bracket of the second panel.   The panel has embedded U-shaped or L-shaped embedded brackets at two or more locations on the panel, and the upper mounting bracket and the lower mounting bracket are mounted on the embedded bracket with screws for brackets. The wooden outer wall mounting construction method for cellular concrete panels according to claim 1, which is fixed by the above-described method.   The embedded bracket is arranged between a pair of mesh reinforcing members embedded in the panel at a predetermined interval in the thickness direction, and is fixed so that at least one mesh reinforcing member is in contact with one surface. Item 3. A method for attaching a wooden outer wall of a cellular concrete panel according to item 1 or 2.   The embedded bracket is arranged over the vertical direction of the panel, the upper mounting bracket is fixed to an upper portion of the embedded bracket, and the lower mounting bracket is fixed to a lower portion of the embedded bracket. The wooden exterior wall mounting construction method of the cellular concrete panel as described in any one of 1-3.   The wooden outer wall mounting construction method according to claim 2, wherein the metal fitting screw is a drill screw. The upper mounting bracket is made of a substantially rectangular sheet metal, has a through hole for fixing to the panel on one end side, and has at least one notch inserted in the longitudinal direction on the other end side as a boundary. A part of the other end side is bent so as to be continuous with the one end side in parallel with each other through a step, and a through hole for fixing to the base wood side is provided in the bent part. Have
The lower mounting bracket is made of a sheet metal in which one end side and the other end side are continuous in parallel with each other through a step in the longitudinal direction, and has a through hole for fixing to the panel on the one end side,
In the step (3). By inserting the other end side of the lower mounting bracket into a slit defined between a bent portion and a flat portion on the other end side of the lower mounting bracket, the upper mounting bracket, The wooden outer wall mounting construction method according to any one of claims 1 to 5, wherein the lower mounting bracket is fitted.   The wooden structure of the cellular concrete panel according to any one of claims 1 to 6, wherein an edge portion on the one end side is bent in the same direction as the step in the upper mounting bracket and the lower mounting bracket. Exterior wall mounting method.   The wooden outer wall mounting construction method according to any one of claims 1 to 7, wherein the steps (1) to (3) are repeated a plurality of times.   The construction method for attaching a wooden outer wall of the cellular concrete panel according to any one of claims 1 to 8, wherein the lightweight cellular concrete is lightweight cellular concrete (ALC) cured by an autoclave. In the outer wall of a wooden building, it is a wooden outer wall mounting structure for attaching a panel made of lightweight cellular concrete to the base wood constituting the frame,
A first panel and a second panel disposed above the first panel;
An upper mounting bracket fixed to the upper part of the first panel and the second panel, a lower mounting bracket fixed to the lower part of the first panel and the second panel, and engageable with the upper mounting bracket;
The upper mounting bracket of the first panel is fixed to the base wood with a wood screw, and the upper mounting bracket of the first panel and the lower mounting bracket of the second panel are fitted. A wooden structure for attaching external wall of cellular concrete panels. On the outer wall of a wooden building, it is a mounting bracket for attaching a panel made of lightweight cellular concrete to the base wood constituting the frame,
It is made of a substantially rectangular sheet metal, has a through hole for fixing to the panel on one end side, and at least one notch inserted in the longitudinal direction on the other end side, part of the other end side Is bent so as to be continuous with the one end side in parallel with the one end side through a step, and an upper mounting bracket having a through hole for fixing to the base wood side in the bent portion,
One end side and the other end side are made of sheet metal that is continuous in parallel with each other through a step in the longitudinal direction, and includes a lower mounting bracket having a through hole for fixing to the panel on the one end side,
By inserting the other end side of the lower mounting bracket into a slit defined between a bent portion and a flat portion on the other end side of the lower mounting bracket, the upper mounting bracket, Mounting bracket that fits with the lower mounting bracket.

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