JP2002054240A - External wall joint structure and work execution method of external wall joint - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an external wall joint structure and a work execution method of an external wall joint capable of satisfactorily holding the quality of an appearance by suppressing the displacement of an inplane shear. SOLUTION: A pair of wall panel members 12 are stackingly installed between the external walls of a pair of building units 11 and 11 of a unit building 10 disposed adjacent to each other at positions moved backward a specified distance from an external wall edge 11b to provide a joint part 13 formed of both side edge parts 12a and 12a of the wall panel members 12 butted to each other apart a specified distance (w) from each other. A wooden spacer 8 is inserted between the external wall edges 11b and 11b of the joint part 13, and a plurality of pair of nails 6... are installed aslant on the right and left sides so as to extend from one external wall edge 11b side through the wooden spacer 8 to the other external wall edge 11b to fix the spacer so as to show a cross-shape in top view.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outer wall joint structure and an outer wall joint construction method for closing an abutting portion between building units arranged adjacent to a building such as a unit house or an outer wall member.

[0002]

2. Description of the Related Art In a conventional building such as a unit house, a unit building 1 is constituted by a plurality of building units 2 and 2 being arranged adjacent to each other as shown in FIG.

In such a structure, a joint portion 4 is formed between a pair of wall plate members 3 forming an outer wall.

[0004] The joining between adjacently arranged building units 2 and 2 is known using a sheet metal connector 5 as described in Japanese Patent Publication No. 5-38102 shown in FIG.

[0005] In such a structure, a connecting member 5 made of sheet metal is laid over the upper surfaces of the wall plate members 3 and 3 and the building units 2 and 2 are fixed to each other using a plurality of nails 6. I have.

Next, the operation of the conventional building will be described.

[0007] In the conventional structure having the above-described structure, the wall plate members 3 and 3 are joined by the sheet metal connecting device 5, and therefore, compared to a wooden head connecting member having a predetermined thickness.
The ceiling height of the upper-floor building units placed on these building units 2 and 2 can be set high.

[0008]

However, the conventional joint structure of the outer wall has the following problems.

That is, as shown by a two-dot chain line in FIG. 15, an external force acts on the building units 2 and 2 arranged adjacent to each other, so that an in-plane shear stress is applied to the joint 4 between the wall plate members 3 and 3. May be added.

For this reason, when a tile for decoration or the like is stuck on the joint portion 4, it is necessary to suppress the in-plane shear displacement caused by the shear stress.

It is an object of the present invention to solve the above-mentioned problems, to provide an outer wall joint structure and an outer wall joint construction method capable of suppressing in-plane shear displacement and maintaining good appearance quality. I have.

[0012]

In order to solve the above-mentioned problems, according to the first aspect of the present invention, between a pair of outer walls arranged adjacent to each other in a building, a pair of wall plate members are arranged closer to an outer wall edge. Also, by being retreated a predetermined distance, a spacer is interposed between the outer wall edges of the joint portion where the two side edges of the wall plate member are separated by a predetermined distance, and one of the outer wall edges is inserted. At least one pair of fixtures that penetrate the spacer and reach the other outer wall from the edge side are provided at least diagonally, and are characterized by an outer wall joint structure fixed in a cross shape when viewed from above.

[0013] In the outer wall joint structure according to claim 1, the pair of fixing members penetrate the spacer so as to reach the outer edge from the one outer wall to the other outer wall. Since the joints are provided at the joints, even if stresses in the in-plane shear direction are applied to the joints, at least one of the fixing members prevents relative movement between the outer walls and suppresses in-plane shear displacement. Is done.

According to a second aspect of the present invention, there is provided an outer wall joint structure according to the first aspect, wherein a tile is attached across the joint.

According to the second aspect of the present invention, since the pair of fixing members penetrating the spacer are provided in the joint portion in a cross shape as viewed from above, in-plane shear displacement is suppressed. You.

For this reason, the tiles straddling the joint are:
Even if it is stuck, it does not fall off or crack.

According to the third aspect of the present invention,
3. The outer wall joint structure according to claim 1, wherein the building is a unit building in which a plurality of building units are combined, and the outer wall is provided in a neighboring building unit. 4.

According to the third aspect of the present invention, a tile is pasted on the outer wall in advance in a factory or the like, and a building unit is arranged adjacent to a construction site. By laying tiles that are substantially the same as the laid tiles, man-hours at the construction site can be reduced, and a uniform outer wall can be obtained over almost the entire area in a short period of time.

Further, according to the fourth aspect of the present invention, the wall plate member is retreated by a predetermined distance from the edge of the outer wall, and is straddled between the side edge of the wall plate member and the edge of the outer wall. A joint tape is stuck between the closing wall plate member and the sealing member.
Wherein the outer wall joint structure is characterized by at least one of the following.

According to the fourth aspect of the present invention, a joint tape is attached between the side edge of the wall plate member and the closing wall plate member. Since the joint tape is thin and relatively easy to match the thickness of the coating applied to the wall plate member in advance, the amount of unevenness can be reduced, and the tile or the like can be easily straddled over the joint.

Therefore, the appearance quality can be further improved.

According to the fifth aspect of the present invention, a pair of wall plate members are pasted a predetermined distance away from the outer wall edge between a pair of outer walls arranged adjacent to each other in the building. A spacer is interposed between the outer wall edges of the joint portion where the two side edges of the wall plate member are separated by a predetermined distance, and the spacer is penetrated from one of the outer wall edges to the other. An outer wall joint construction method is characterized in that a pair of fixing tools are obliquely penetrated so as to reach the outer wall and are fixed in a cross shape when viewed from above.

According to the fifth aspect of the present invention, the pair of fixing members are penetrated from the outer wall edge of the joint by using the portion where the wall plate member is retracted and attached. Since, for example, a blocking wall plate member is attached from above the fixing tool so as to cover the outer edge of the joint, the fixing tool can be hidden, and the appearance quality can be improved. You can do it.

[0024]

First Embodiment A first embodiment of the present invention will be described below with reference to the drawings. Parts that are the same as or equivalent to those in the conventional example will be described with the same reference numerals.

FIGS. 1 to 14 show an outer wall joint structure and an outer wall joint construction method according to a first embodiment of the present invention.

First, the structure will be described. In the first embodiment, as shown in FIG. 6, adjacently arranged building units 11, constituting a unit building 10 as a building.
11 is provided on each of the outer wall portions 11a, 11a.
2 and 12 are mounted as a pair.

As shown in FIG. 8, between the pair of wall plate members 12, 12, a predetermined distance w1 is set back from the outer wall edges 11 b, 11 b, so that these wall plate members 12 are bonded. , 12 are formed with joints 13 formed by abutting the side edges 12a, 12a of the wall plate members 12, 12 at a predetermined interval w.

The recesses 11c, 11c in which the wall plate member 12 is retreated from the outer wall edge 11b of the joint portion 13 and are attached.
Are attached with waterproof sheets 9 and 9 made of synthetic resin and having a substantially L-shaped horizontal cross section.

The outer wall edges 11b, 11b have
The closing wall plate member 1 having substantially the same thickness as the wall plate member 12
4 is stuck so as to straddle.

Further, in the first embodiment, a flat spray layer 15 of acrylic emulsion coating is provided on the surface of the closing wall plate member 14 and the surface of the wall plate member 12 in advance in the factory. A plurality of tiles (not shown) are attached to the surface of the flat blown layer 15 of the wall plate member 12.

A wooden spacer 8 having a predetermined thickness as shown in FIG. 5 is provided between the outer wall edges 11b.
Is inserted.

Next, the operation of the outer wall joint structure and the outer wall joint construction method according to the first embodiment will be described with reference to FIGS. 1 to 14 in accordance with the construction order of the flowchart shown in FIG.

In the outer wall joint structure and the outer wall joint construction method according to the first embodiment configured as described above, first, as shown in FIG. The wall plate member 12 is attached.

Next, as shown in FIG. 2, a flat blown layer of an acrylic emulsion coating is previously formed in a factory so that the surface is substantially flat over the surface of the base material 16 and the surface of the wall plate member 12. 19 is spray-painted and dried, and a plurality of decorative tiles are attached.

The building units 11, 11 transported to the construction site are arranged adjacent to each other with the outer wall edges 11b, 11b facing each other as shown in FIGS.

At this time, the side edges 12a, 12a of the pair of wall plate members 12, 12 are arranged adjacent to each other so as to substantially coincide with each other in the height direction.

First, in Step 1, between the outer wall edges 11b, 11b of the joint portion 13, the wooden spacer 8,
8 are inserted at predetermined intervals along the vertical direction,
In step 2, waterproofing work is performed on the inter-unit wall.

Then, in Step 3, nails 6 as fasteners are driven from above the waterproof sheet members 9, 9 to stitch and fix the studs.

These nails 6 are connected to the one outer wall edge 1
From left and right sides, a plurality of left and right pairs are provided diagonally so as to penetrate the wooden spacer 8 and reach the other outer wall edge 11b, and are fixed so as to present a cross shape when viewed from above.

In Step 4, the application of the inter-unit drainage tape 7 is performed as shown in FIG.

In Step 5, as shown in FIGS. 9 and 10, a closing wall plate member 14 having substantially the same thickness as the wall plate member 12 extends between the outer wall edges 11b, 11b of the joint portion 13. It is pasted on.

Then, as shown in FIGS. 11 and 12,
The wall plate member 12 of the first embodiment has a side edge 12
a and both side edges 14 of the blocking wall plate member 14
Non-painted portions 20 and 21 are respectively formed on a and 14a.

In Step 6, as shown in FIG. 11, gasket members 23, 23 are inserted into the gaps formed between the side edges 12a, 12a and the side edges 14b, 14b of the closing wall plate member 14. Each is buried and mounted.

In Step 7, as shown in FIG. 12, the unpainted portion 20 of the wall plate member 12 and the unpainted portion 21 of the closing wall plate member 14 are placed on the gasket members 23, 23 from above.
The joint tapes 24, 24 are stuck between them. At this time, the pressing roller is pressed so as not to wrinkle.

In Step 8, a touch-up paint 27 containing a tube is applied to the unpainted portions 20, 21 to which the joint tape 24 is not attached, and is flattened with a rubber spatula or the like.

As described above, the side edge portion 1 of the wall plate member 12
Since the joint tapes 24 and 24 are attached to the non-coating portions 20 and 21 formed on the surface of 2a and on both side edges of the blocking wall plate member 14, the thickness of the joint tapes 24 and 24 is reduced by the coating layer. The unevenness is reduced by the thicknesses of the layers 25 and 26.

Therefore, even in the joint portion 13, a substantially flat outer wall can be relatively easily obtained by using the touch-up paint 27, and the appearance quality can be improved.

Furthermore, the amount of unevenness due to the joining of the joint tapes 24, 24 is reduced by the unpainted portions 20, 21, so that the finishing process of the outer wall can be simplified and the construction period can be shortened.

In Step 9, molding is performed, and in Step 10, as shown in FIG. 14, tiles 30 are attached across the joint portions 13.

As described above, so as to reach from the one outer wall edge 11b to the other outer wall edge 11b,
The plurality of pairs of nails 6, 6 penetrate the wooden spacer 8.
Are provided on the joint portion 13 in a cross shape as viewed from above.

For this reason, even if stress in the in-plane shear direction is applied to the joint portion 13, at least one nail 6 is inserted into the wedge-shaped edge 11b of the other outer wall, thereby forming a gap between the outer wall portions 11a. Relative movement is prevented, and in-plane shear displacement is suppressed.

Further, since a pair of right and left nails 6, 6 penetrating the wooden spacer 8 are provided in the joint portion 13 in a cross shape as viewed from above, in-plane shear displacement is suppressed, and a step is formed in the in-plane and out-of-plane directions. It is less likely to occur.

For this reason, in the joint portion 13, particularly in the first embodiment, even if the tile 30 is stuck over the joint tape 24 at the portion where the gasket 23 is inserted, the tile 30 falls off or cracks. Nothing.

Then, tiles 30 are pasted on the wall plate members 12 of the outer wall in advance in a factory or the like, and the building units 11 are arranged adjacently at the construction site.
By attaching the tile 30 substantially the same as the tile 30 attached to the outer wall, man-hours at the construction site can be reduced, and a uniform outer wall can be obtained over almost the entire area in a short period of time.

Further, a joint tape 24 is attached between the side edge 12 a of the wall plate member 12 and the closing wall plate member 14. The joint tape 24 is thin, and is relatively thin.
2 can be easily adjusted to the thickness of the pre-applied coating.
It is easy to lay over and stick.

Therefore, the appearance quality can be further improved.

Further, a plurality of pairs of nails 6, 6 are penetrated from the outer wall edges 11b, 11b of the joint portion 13 by using the concave portions 11c in which the wall plate members 12, 12 are retreated and stuck. . For this reason, the outer wall edge 11b of this joint part 13
By attaching the closing wall plate member 14 from above these nails 6 and 6 so as to cover b, the nails 6 and 6 can be hidden, and the appearance quality can be improved. .

Although the first embodiment of the present invention has been described in detail with reference to the drawings, the specific configuration is not limited to the first embodiment, and there are design changes and the like without departing from the gist of the present invention. Even this is included in the present invention.

For example, in the first embodiment, the case where the outer wall joint structure and the outer wall joint construction method are applied to the unit building 10 constituted by combining a plurality of the building units 11 and 11 has been described. The present invention is not limited to this, and it is natural that other prefabricated construction methods or conventional wooden structures may be used as long as joints are formed between a pair of outer walls.

[0060]

As described above, according to the first aspect of the present invention, the pair of fixtures penetrate the spacer so as to reach from the one outer wall edge to the other outer wall. Since it is provided in the joint portion in a visual cross shape, even if stress in the in-plane shear direction is applied to the joint portion, at least one of the fixing members prevents relative movement between the outer walls,
In-plane shear displacement is suppressed.

According to the second aspect of the present invention, since the pair of fixing members penetrating the spacer are provided in the joint portion in a cross shape as viewed from above, the in-plane shear displacement is suppressed.

For this reason, the tile straddling the joint is
Even if it is stuck, it does not fall off or crack.

In the third aspect,
In a factory or the like in advance on the outer wall, a tile is pasted, and a building unit is arranged adjacently at a construction site, and then, at a joint, by pasting a tile substantially the same as the tile pasted on the outer wall, By reducing man-hours at the construction site, it is possible to obtain a uniform outer wall over almost the entire area in a short period of time.

Further, according to the fourth aspect, a joint tape is attached between the side edge of the wall plate member and the closing wall plate member. Since the joint tape is thin and relatively easy to match the thickness of the coating applied to the wall plate member in advance, the amount of unevenness can be reduced, and the tile or the like can be easily straddled over the joint.

Therefore, the appearance quality can be further improved.

According to the fifth aspect of the present invention, since the pair of fixing members are penetrated from the outer wall edge of the joint using the portion where the wall plate member is retreated and attached. ,
By attaching, for example, a blocking wall plate member from above the fixing tool so as to cover the outer edge of the joint portion, the fixing tool can be hidden, and the appearance quality can be improved. It is possible to exhibit a practically useful effect of being able to do so.

[Brief description of the drawings]

FIG. 1 is a horizontal cross-sectional view at a position along a line CC in FIG. 2 in the outer wall joint structure and the outer wall joint construction method according to the first embodiment of the present invention.

FIG. 2 is an exploded perspective view illustrating an overall configuration of a unit building in the outer wall joint structure and the outer wall joint construction method according to the first embodiment.

FIG. 3 is a cross-sectional view taken along a line DD in FIG. 2 in the outer wall joint structure and the outer wall joint construction method according to the first embodiment;

FIG. 4 is a front view of a joint in the outer wall joint structure and the outer wall joint construction method according to the first embodiment;

FIG. 5 is a perspective view of a wooden spacer used for the outer wall joint structure and the outer wall joint construction method according to the first embodiment;

FIG. 6 is a plan view of a unit building to which the outer wall joint structure and the outer wall joint construction method of the first embodiment are applied.

FIG. 7 is a flowchart illustrating a procedure of an outer wall joint construction method according to the first embodiment;

FIG. 8 is a perspective view of a joint portion to which an inter-unit draining tape is attached in the outer wall joint structure and the outer wall joint construction method according to the first embodiment.

FIG. 9 is a perspective view illustrating a state in which a blocking wall plate member is stuck by the outer wall joint structure and the outer wall joint construction method of the first embodiment.

FIG. 10 is a diagram illustrating a state in which a blocking wall plate member is stuck by the outer wall joint structure and the outer wall joint construction method according to the first embodiment;
It is sectional drawing in the position along middle AA line.

FIG. 11 is a perspective view illustrating a state in which a joint material is attached in the outer wall joint structure and the outer wall joint construction method according to the first embodiment;

FIG. 12 is a perspective view illustrating a state in which a joint tape is attached in the outer wall joint structure and the outer wall joint construction method according to the first embodiment;

FIG. 13 is a perspective view of a joint to which a touch-up paint is applied in the outer wall joint structure and the outer wall joint construction method according to the first embodiment;

FIG. 14 is a horizontal cross-sectional view of a joint portion to which a tile is attached in the outer wall joint structure and the outer wall joint construction method according to the first embodiment.

FIG. 15 is a schematic diagram illustrating in-plane shear displacement in a conventional unit building.

FIG. 16 is a perspective view illustrating a connection between building units in a conventional unit building.

[Explanation of symbols]

 6 Nail (Fixing Tool) 8 Wooden Spacer (Spacer) 10 Unit Building (Building) 11a Outer Wall (Wall) 11b Outer Wall Edge 12 Wall Plate Member 12a Side Edge 13 Joint 14 Plugging Wall Plate 24 Jointing Tape 30 Tile

Claims (5)

[Claims] 1. A pair of wall plate members are attached between a pair of adjacent outer walls of a building so as to recede a predetermined distance from an edge of the outer wall, so that both side edges of the wall plate member are attached. A spacer is interposed between the outer wall edges of the joint portion butted at a predetermined interval, and at least one pair of fixing tools that penetrate the spacer and reach the other outer wall from one outer wall edge side. And an outer wall joint structure fixed to a cross shape when viewed from above. 2. The outer wall joint structure according to claim 1, wherein a tile is stuck over the joint portion. 3. The building is a unit building in which a plurality of building units are combined, and the outer wall is
The outer wall joint structure according to claim 1, wherein the outer wall joint structure is provided in a building unit arranged adjacently. 4. A method according to claim 1, wherein a side wall portion of the wall plate member that is attached and retracted a predetermined distance from the outer wall edge and a closing wall plate member that is attached across the outer wall edge. An outer wall joint structure according to any one of claims 1 to 3, wherein a joint tape is attached. 5. A pair of wall plate members are attached between a pair of adjacent outer walls of the building so as to be receded by a predetermined distance from an edge of the outer wall, so that both side edges of the wall plate members are attached. A spacer is interposed between the outer wall edges of the joint portion butted against each other at a predetermined interval, and a pair of fixing tools are arranged to penetrate the spacer from one outer wall edge side to reach the other outer wall. The outer wall joint construction method, characterized in that the outer wall is obliquely penetrated and fixed in a cross shape when viewed from above.