JPH108676A - Method for constructing stair zone and stair zone structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To restrain the risk of damaging a wall part when a stair zone is constructed with the use of a stair unit which has been previously integrally formed between opposed wall parts, and simplify the work at a job-site. SOLUTION: In a zone where a first wall part, a second wall part 14 and a third wall part 16 are planted in a U-like pattern around a stair installation zone, a support wall part 40 is planted on a floor surface part 80 below the stair. Further, one of side parts of a first stair unit 50 is made into contact with the first wall part so as to arrange the first stair unit 50 extending from the floor part 80 to the support wall part 50. Then, a landing 70 is constructed in a zone which is off from the first stair unit 50 toward the second wall part 14, and between the first wall part and the third wall part 16. Next, the other side part of the first stair unit 50 is brought into contact with the associated wall surface, and an intermediate wall part 50 is planted on the floor surface 80 in parallel with the first wall part and the second wall part 16. Thereafter, one and the other of side parts of a second stair unit 60 are brought into contact with the third wall part 16 and the intermediate wall part 30, respectively, and the second stair unit 60 is arranged extending between the landing 70 and the floor surface part 80.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a staircase region using a staircase unit and a staircase region structure constructed by this construction method.

[0002]

Background Art and Problems to be Solved by the Invention
When constructing a staircase indoors, place a receiving material on the upper position where the staircase is to be constructed, attach a girders to each of the walls provided facing the staircase installation area, The stairs were constructed by attaching the step board and the riser at predetermined intervals. Then, a decorative step board is attached, and finishing work of the entire stairs is performed by a skirting board or the like.

However, the above-mentioned conventional method of constructing a staircase portion involves individually attaching the members constituting the staircase to the wall portion, and the mounting work is complicated and time-consuming, and all the work is performed at a building site. However, there was a problem that the construction period could be lengthened.

Therefore, Sasara girder,
A staircase construction method has been used in which a staircase unit in which a stepboard and a riser plate are integrated is formed, and the staircase unit is mounted between opposing walls. When the stair unit integrated in this way is installed between the upright walls, first, an adjusting member is attached to the wall surface along the mounting position of the sasara girder forming the stair unit, and the adjusting member is inserted through the adjusting member. A method of mounting a stair unit on a wall was used. After that, the mounting material is divided into upper and lower wall surfaces and a finishing material such as a gypsum board is mounted thereon. However, even in this method, the work of attaching the adjusting material is necessary, and the finishing material needs to be divided and attached, so that the work on site is also time-consuming.

On the other hand, in order to simplify the on-site construction by further promoting industrialization in recent years, a wall panel with a finishing material in which a finishing material is previously attached to the surface of the wall panel is formed.
Walls have come to be constructed by connecting them at the construction site. When a staircase unit is installed between walls constructed using such a wall panel with a finishing material, it is difficult to use an adjusting material on the wall as in the conventional case, and moreover, it is difficult to mount the staircase unit on the wall during installation work. There is a problem that there is a great risk of damaging the device.

[0006] Furthermore, when constructing a region including a staircase, it is desired to construct a staircase region in which the space under the stairs can be effectively utilized in order to make the living space wider.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems and needs, and has as its object to construct a staircase region using a staircase unit previously integrated between opposing walls. It is an object of the present invention to provide a method of constructing a staircase region that can reduce the possibility of damaging the stairs, simplify the on-site work, and effectively use the space under the staircase.

[0008]

In the following, the means for achieving the above object will be described by associating the reference numerals of the embodiments of the present application with the respective constituent elements of the claims of the present application. .

According to the first aspect of the present invention, the first (12) and the second (1) are provided in a U-shape around the step installation area.
A step unit (50, 6) in which a plurality of step plates (54) are attached at a predetermined interval between a pair of sasaras girders (52) in a region surrounded by 4) and the third wall portion (16).
0) to the upper floor (8) from the lower floor (80).
2), the lower part formed by the first stair unit (50), the upper part formed by the second stair unit (60), and provided between the lower part and the upper part. A landing section (70), and a support wall (40) erected in the area and supporting the first stair unit and the landing section
And a middle wall portion (30) erected between the first stair unit and the second stair unit, the method comprising: Erecting the support wall at right angles to the first wall on the lower floor at a joint position with the landing, and moving one side of the first stair unit to the first Arranging the first stair unit from the lower floor portion to the support wall portion in contact with the first wall portion, and on the second wall portion side of the first stair unit, and Constructing the landing section in an area surrounded by the first wall section, the second wall section, and the third wall section; and the other side of the first stair unit and the middle wall. Part of the wall (3
6) abutting against the first wall portion and the third wall portion, and erecting an intermediate wall portion on the lower floor surface portion in parallel with the first wall portion and the third wall portion, and one side of the second staircase unit Abut against the second wall portion and the other side portion against the middle wall portion, respectively.
Arranging the second stair unit from the landing section to the upper floor section.

According to the first aspect of the present invention, the first staircase unit is configured such that the first wall portion is erected only on one of the side portions without being dropped between the wall portions from above. The first wall is disposed with its side abutting. After that, an inner wall portion is erected in contact with the other side portion of the first stair unit, and a first wall is provided between the first wall portion and the inner wall portion.
Of staircase units will be provided. Therefore, the risk of damaging the wall surface is reduced, and the first integrated staircase unit can be easily arranged between the opposing wall surfaces.

Further, since the first stair unit is supported by the floor surface portion below the floor and the supporting wall portion, the first stair unit can be provided even when the middle wall portion is not erected on the other side. Can be provided. The support wall supports the first stair unit and defines a space below the landing. Therefore, at the same time as constructing the staircase region, a predetermined region partitioned under the landing can be formed, and a staircase region that can effectively utilize the space under the stairs can be constructed.

According to a second aspect of the present invention, in the first aspect, the middle wall portion covers a lower side area excluding an upper side area of the second stair unit, and the second stair unit is disposed. And a step of constructing an upper middle wall portion (34) covering the upper side area of the second staircase unit at the upper end of the middle wall portion.

According to the second aspect of the present invention, the second stair unit is dropped between the third wall portion after the middle wall portion is erected, and is arranged over the landing portion and the upper floor portion. However, since this middle wall covers the lower side area excluding the upper side area of the second stair unit,
When mounting the second staircase unit, the risk of damaging the wall is reduced, and the work of mounting the second staircase unit is also facilitated. Then, by erection of the upper middle floor portion on the floor, one side portion of the second staircase unit is covered by the wall portion over the entire area, and a handrail or the like can be attached.

According to a third aspect of the present invention, in the first or second aspect, the first wall portion, the third wall portion, and the middle wall portion are provided on both sides of a framed frame (24). One or more wall panels (20) on which inorganic facing materials (27, 28) as a finishing material are directly attached and formed are erected, and the first stair unit has its side portions (53a, 53b). On the first wall and the middle wall, the second stair unit has its side on the third wall and the middle wall,
It is characterized in that each is directly abutted and fixed.

According to the third aspect of the present invention, the first wall, the third wall, and the middle wall constituting the staircase region structure are preliminarily provided with an inorganic surface material as a finishing material. Since the wall panel is constructed by the wall panel, the wall panel to which the finishing material is attached is constructed only by transporting the wall panel to the site and standing upright at a predetermined position, and does not require a finishing material attaching operation or the like. Therefore, the construction work of the staircase region is simplified.

Further, the wall panel is formed by directly attaching an inorganic surface material as a finishing material to both sides of a framed frame, and the stair unit is directly abutted and fixed to the wall surfaces of these walls. Therefore, the width of the steps of the stairs is smaller than that of a conventional configuration in which a stair unit is attached to a wall portion to which a finishing material is attached via a face material forming a wall surface. Can be widened, and no mounting material is required, so that the number of members can be reduced and the mounting operation can be simplified.

According to a fourth aspect of the present invention, in any one of the first to third aspects, the landing portion is located at a position higher than a half of a height from the lower floor to the upper floor by a predetermined distance. It is characterized by being constructed in.

According to the fourth aspect of the present invention, the area under the landing that can be used as an effective space is:
It can be widely secured as a region having a height. This area can be effectively used as, for example, a toilet or a storage. Further, since the number of steps of the second stair unit attached between the middle wall portion and the third wall portion that are already erected can be reduced, the work of attaching the second stair unit can be simplified. can do.

According to a fifth aspect of the present invention, the first wall portion (12) and the second wall portion (12) are constructed by the method for constructing a staircase region according to any one of the first to fourth aspects. 1
4) and a third wall (16), a first stair unit (50) and a second stair unit (60), a landing (70), a middle wall (30), and a support wall (40)
Wherein the support wall has a frame (46) framed in a rectangular shape, and a face material is attached to at least one surface (47) of the frame. A support wall panel (42) which is not constructed, with the one surface facing the second wall portion, and a lower end of the landing portion on the side of the first staircase unit, the support wall portion being provided. The riser plate (94) supported by the support plate is attached, and one side surface (97) of the riser plate member is arranged flush with one surface (47) of the frame of the support wall, and An inorganic surface material (110) as a finishing material is continuously attached to one side surface of the embedding plate material and one surface of the support wall so as to cover both surfaces.

In the staircase region structure according to the fifth aspect of the present invention, a region that can be effectively used as, for example, a toilet or a storeroom can be secured below the landing.

When the area under the landing is used as a restroom or a storage room, finishing materials are attached and cross-attached to the wall formed by the supporting wall and the riser plate connecting the landing. Finish processing is required.

According to the fifth aspect of the present invention, the side surface of the riser plate on the landing portion side and one surface of the frame of the support wall are arranged flush with each other, and the inorganic surface material forming the finishing material covers both surfaces. By being attached continuously, it is possible to eliminate the seam of the inorganic surface material and cover the both surfaces without any step. Therefore, the appearance of the side wall surface of the landing section formed by the riser plate and the support wall is good in appearance, and it is possible to prevent cross cut when performing a cross-bonding as a finishing treatment on the inorganic surface material.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a structure of a staircase region 10 constructed by a method of constructing a staircase region according to the present embodiment.
2 is a cross-sectional view as viewed from above, and FIG. 2 is a cross-sectional view as viewed from above.

The step area 10 is constructed in a predetermined step installation area inside the building. As shown in FIG. 1 and FIG. 2, the staircase region 10 forms a round staircase that is provided between the upright walls and the walls, and has a lower portion and an upper portion with the landing portion 70 interposed therebetween. And a staircase.

As shown in FIG. 2, the first wall 12 and the second wall 12 are provided in a U-shape around the step installation area.
A wall portion 14 and a third wall portion 16, an intermediate wall portion 30 erected between the first wall portion 12 and the third wall portion 16 erected in parallel to each other, and As shown in FIG. 1, a support wall 40 is provided which is perpendicular to the first wall 12 and is erected in parallel with the second wall 14. In addition, the staircase section includes a first staircase unit 50 serving as a lower tier, a second staircase unit 60 serving as an upper tier, and a landing 70.

The first wall portion 12, the second wall portion 14, and the third wall portion 16 are constructed by connecting a plurality of wall panels 20 in series. The wall panel 20 is a so-called pre-finish type architectural panel formed in a factory or the like and having in advance inorganic surface materials 26 and 28 serving as wall finishing materials on both surfaces thereof.

As shown in FIG. 6, the wall panel 20 includes a frame 24 in which a plurality of frame members 22 are framed in a rectangular shape, a horizontal rail 25 incorporated in the frame 24 in a lattice shape, and a vertical It is formed to include a crosspiece 26 and inorganic face materials 27 and 28 attached to both surfaces of the frame 24, respectively. The inorganic surface materials 27 and 28 constitute wall finishing materials, and in the present embodiment, cement boards mixed with fibers are used. These inorganic surface materials 27 and 28 are directly attached to both surfaces of the frame 24 without using a surface material such as plywood.

Further, on both sides of the horizontal rails 25, 25 across the vertical rail 26 and on the side of the inorganic surface material 27, the horizontal rail 2
Notches 25a penetrating through holes 5 and 25 are formed, respectively. The notch 25a is used as a wiring hole for passing a wiring when wiring or the like is provided in the wall panel 20.

As shown in FIG. 1, the middle wall portion 30 includes three wall panels 32a and 32 standing upright on the lower floor portion 80.
b and 32c are connected in series. A wall panel 32d for constructing the upper middle floor portion 34 is attached to the upper end of the wall panel 32a.

The wall panels 32a, 32b, 32
Each of c and 32d is configured to include a frame in which a plurality of frame members are framed in a predetermined shape, and an inorganic surface material directly attached to both surfaces of the frame without interposing the surface material. Crosspieces are appropriately incorporated in the frame. These wall panels 3
Like the wall panel 20, 2a, 32b, 32c, and 32d are also formed in advance in a factory or the like and transported to the site.

The support wall portion 40 is constructed by erecting a support wall panel 42 on the floor below the floor, and the support wall panel 42 is a frame 4 having a plurality of frame members framed in a rectangular shape.
6 and an inorganic face material 48 attached to one surface of the frame body 46. A crosspiece is appropriately incorporated in the frame body 46. Similarly to the above-mentioned wall panel, the supporting wall panel 42 is formed in advance in a factory or the like and is transported to the site.

In the staircase region 10, the lower part of the staircase is constructed using the first staircase unit 50, and the upper part is constructed using the second staircase unit 60.

The first stair unit 50 has a first wall 1
Between the lower wall 2 and the middle wall 30, the lower wall is disposed from the lower floor 80 to the upper end of the support wall 40. Also, the second
The staircase unit 60 is disposed between the third wall portion 16 and the middle wall portion 30 from the landing portion 70 to the upper floor portion 82. The landing section 70 is constructed in an area surrounded by the first wall section 12, the second wall section 14, and the third wall section 16 between the first stair unit 50 and the second stair unit 60. ing.

As shown in FIG. 3, the first staircase unit 50 has a plurality of step plates 54 and a riser plate 56 mounted at a predetermined interval between a pair of slab beams 52, and is integrated in advance. . Further, the first staircase unit 50 is configured as a unit having a length attached between the upper end of the support wall portion 40 and the lower floor portion 80. Further, the first stair unit 50 projects from the upper end of the slab 52 toward the support wall 40 located on the upper side of the stairs, and
4a is provided.

The structure of the second staircase unit 60 is the same as that of the first staircase unit 50, except that the number of steps is smaller than that of the first staircase unit 50.
A plurality of step plates 64 and a riser plate 66 are attached at predetermined intervals therebetween, and are integrated in advance. Sasara girder 62
Is provided with an uppermost step plate 64a protruding toward the upper floor surface portion 82 located on the upper side of the stairs. In addition, the second staircase unit 60 is configured as a unit having a length attached between the landing 70 and the upper floor 82.

The landing section 70 is constituted by a landing panel 72, and the landing panel 72 is formed by attaching a face member 78 to the upper surface of a frame 76 in which a plurality of frame members are framed in a rectangular shape.

In the step area 10, the landing 70
Are the two landing panels 72a, 7 as shown in FIG.
2b are arranged side by side with a step. Details will be described later.

Next, a construction method for constructing the step region 10 will be described.

First, the first wall portion 12, the second wall portion 14, and the third wall portion 16 are formed in a U-shape by arranging a predetermined number of wall panels 20 around the stair installation area. Erected in

Next, as shown in FIG. 1, the support wall panel 42 is perpendicular to the first wall portion 12 and the inorganic face material 48
The support wall 40 is constructed by standing upright on the lower-floor floor 80 so that the surface on which the is not attached faces the second wall 14.

Then, the first staircase unit 50 is
As shown in the figure, the lower floor portion 8 is placed with the lower end thereof placed on the lower floor portion 80 and the projecting portion 55 of the uppermost step board 54a, which is the upper end portion, placed on the upper end of the support wall portion 40.
It is arranged from 0 to the upper end of the support wall 40 to construct a lower step. At this time, as shown in FIG. 4 (A), the side surface 53a of the one sash girder 52a on the first wall portion 12 side is brought into direct contact with the wall surface of the first wall portion 12, and an adhesive, a nail, By this, the stair unit 50 and the wall surface are fixed.

In the state where the first staircase unit 50 is provided, as shown in FIG. 1, the protruding portion 55 of the step board 54a makes the upper end surface of the support wall portion 40 face the second wall portion 14 side. It is placed in a state excluding a predetermined range.

Next, the landing section 70 is constructed using the landing panels 72a and 72b.

First, a step board member 90 and a riser board member 94 are attached to the end of the landing panel 72a on the first stair unit side (see FIG. 5). Then, the landing panel 72a to which the step board member 90 and the riser board member 94 are attached is placed on the upper end of the support wall part 40 with the riser board member 96, and as shown in FIG. The end surfaces on the second wall portion 14 side are disposed by directly abutting and fixing the respective wall surfaces with an adhesive, nails, or the like. In this state, the side surface 97 of the riser plate member 96 is flush with the surface 47 of the support wall portion 40 on the second wall portion 14 side. Landing panel 7
The structure in which the connecting portion between 2a and the first staircase unit 50 is accommodated will be described later.

Next, a lower receiving member 92 is attached to the end surface of the landing panel 72b on the side of the second unit 60 (see FIG. 1), and the second wall portion 14 and the third wall portion are similarly provided to the landing panel 72a. The end surface on the 16 side is disposed by directly abutting and fixing to each wall surface with an adhesive, a nail, or the like, and the landing section 70 is constructed.

As shown in FIG. 1, the third wall 16
The landing panel 72b arranged on the side and the landing panel 72a arranged on the first wall portion 12 side are provided with a step of one step, and the landing panel 72b is a landing panel 72a.
It is arranged at a position one step higher than that. The landing panel 72a and the landing panel 72b are connected by a riser 74.

Further, the position of the landing 70 is set to a position higher than 1/2 of the distance from the lower floor 80 to the upper floor 82 where the stairs are provided. That is, as shown in FIG. 1, the distance l ₂ from the lower floor 80 to the landing 70 is greater than l _1, which is half the distance from the lower floor 80 to the upper floor 82.

Next, the three wall panels 32 connected in advance
a, 32b, 32c are connected to the first wall 12 and the third wall 1
6, the middle wall 30 is constructed by standing on the lower floor 80 in parallel with these walls.

The inner wall portion 30 is in contact with the landing portion 70 at its end surface, and its surface 36 on the first wall portion 12 side directly abuts against the side surface 53b of the other slab beam 52b of the first stair unit 50. Place it in contact. At the time of constructing the middle wall portion 30, the side surface 53b of the other slab beam 52b of the first staircase unit 50 is fixed to the wall surface of the middle wall portion 30 with an adhesive, a nail, or the like. Thus, the first staircase unit 50 is directly fixed and supported by the first wall portion 12 and the middle wall portion 30 (see FIG. 4A).

After that, the second stair unit 60 is attached between the landing section 70 and the upper floor section 82 to construct the upper section.

The upper floor portion 82 is constructed by laying floor panels 100. The floor panel 100 includes a frame member 102 having a plurality of frame members framed in a rectangular shape, and a face member 104 attached to an upper surface of the frame member 102. At the end supporting the upper part of the floor panel 100, a gap 106 is attached. At the upper end of the gap 106, the thickness of the uppermost step board 64 a of the second stair unit 60 is provided. The concave portion 108 corresponding to
Is formed in accordance with the width of.

The second stair unit 60 is connected to the third wall 16
And the lower wall portion 30 and the lower end thereof is supported on the lower receiving member 92 attached to the landing panel 72b. The protruding portion 65 of the uppermost step plate 64a is set in the concave portion 108 formed at the upper end of the body gap 106.

As shown in FIG. 1, the middle wall portion 30 covers only the lower three steps of the second staircase unit 60. Then, in this state, the side surface of one of the girders of the second staircase unit 60 is directly applied to the third wall portion 16, and only the portion of the side surface of the other girders that is covered by the middle wall portion 30 is directly on the respective wall surfaces. Abut and fix with adhesives, nails, etc.

Thereafter, a wall panel 32d is erected on the upper end of the wall panel 30a constituting the middle wall section 30 to construct the upper middle wall section 34, and the construction of the staircase region 10 is completed.

The upper middle floor portion 34 completely covers the upper side of the second staircase unit 60. The portion of the side surface of the other girder covered by the upper middle wall portion 34 is brought into direct contact with the wall surface of the upper middle wall portion 34, and is fixed with an adhesive or a nail. Thus, the second stair unit 60 is connected to the third wall 1
6 and the middle wall portion 30 and the upper floor middle wall portion 34 are abutted and fixed.

The middle wall portion 30 and the upper floor middle wall portion 34 include:
A handrail or the like can be appropriately attached.

As described above, according to the method of constructing the staircase region according to the present embodiment, the first wall portion 12, the second wall portion 14, and the second The third wall portion 16 and the middle wall portion 30 are constructed by a wall panel to which an inorganic surface material as a finishing material is attached in advance.
By simply transporting these wall panels to the site and erecting them at predetermined positions, a wall portion to which the finishing material is attached is constructed, and the work of attaching the finishing material is not required. Further, since the steps forming the stairs are constructed from the first and second stairs units 50 and 60 which are integrated in advance, the steps are constructed by disposing the stairs at predetermined positions. No need for complicated stairs assembling work. Therefore, the site work can be significantly simplified.

After the first wall portion 12 is erected and the first stair unit 50 is provided, the middle wall portion 30 is constructed, whereby the previously integrated first stair unit 5 is formed.
Even when the stairs are constructed using 0, the risk of damaging the wall is reduced, and the lower step of the stairs can be easily constructed between the standing walls.

Further, since the first stair unit 50 is supported by the floor portion 80 below the floor and the supporting wall portion 40, even if the middle wall portion 30 is not erected on the other side surface, the first stair unit 50 is provided. A unit 50 can be provided. Support wall 40
Supports the first stair unit 50 and partitions the area below the landing 70. Therefore, at the same time when the staircase region 10 is constructed, a predetermined region partitioned under the landing 70 can be formed, and a staircase region in which the space under the stairs can be effectively used can be obtained.

Further, since the landing section 70 is set at a position higher than half the distance from the lower floor section 80 where the stairs are provided to the upper floor section 82, the landing section 70 has A relatively large area with a high ceiling can be secured, and the space can be effectively used as a toilet, a storage room, or the like.

The second stair unit 60 is erected between the third wall 16 and the middle wall 30 erected opposite to each other. As shown in FIG. The second stair unit 60 forming a part has a smaller number of steps than the first stair unit 50, and the middle wall portion 30 has the second stair unit 6.
Since only the lower part is covered and the upper part is not covered, the risk of damaging the wall surface in the mounting work of the second stair unit 60 is reduced, and the mounting work is also easy.

Furthermore, the first staircase unit 50 is
As shown in (A), the first wall 12 and the middle wall 30
The side surfaces of the second staircase unit 60 are fixed directly to the third wall portion 16, respectively.
2. Since the intermediate wall portion 30 and the third wall portion 16 are each composed of a panel in which the finishing material is directly attached to the frame, the finishing material is attached via the face material forming the wall surface as in the related art. Compared to a configuration in which a stair unit is attached to a wall via a mounting member, the width of the step portion of the stairs can be made wider, and the number of members can be reduced since no mounting material is required. It is possible, and the mounting work is easy.

Similarly, the landing panels 72a and 72b also
As shown in FIG. 4 (B), since the first and second walls 12, 14 and 16 are directly abutted and fixed, the landing section can be made wider. In addition, the number of members can be reduced, and the mounting operation is easy.

Next, the fitting structure of the connecting portion between the landing panel 72a and the first staircase unit 50, which is a characteristic structure of the staircase region 10, will be described with reference to FIG.

In the staircase region 10 according to the present embodiment, as described above, a predetermined region defined by the wall provided around the installation region and the support wall 40 below the landing area 70 is formed. Secured. This area is effectively used, for example, as a toilet, a storage, or the like. When the space below the landing 70 is used as such a region, the inner wall below the landing 70 needs to be finished with a wall surface.

As described above, the step board 90 and the riser 94 are attached to the end of the landing panel 72a on the first stair unit side (see FIG. 5).

Here, the step board member 90 is a landing panel 72.
The upper surface of the step board 90 and the upper surface of the landing panel 72a are flush with each other.

The riser 94 is made of two plywoods having different heights, and the first riser 96 and the landing panel 72a attached to the first stair unit 50 are provided below the step 90. Second riser 9 mounted on the side
8 is provided. The first riser 96 has its lower end placed on the upper end of the support wall 40 to form the side wall 97 of the first riser 96 on the landing panel 72 a side and the support wall 40. The support wall panel 42 is attached such that the surface 47 of the frame body 46 on the second wall portion 14 side is flush with the support wall panel 42. In addition, the second riser 98 serves as an adjusting material for filling between the end of the landing panel 72a and the first riser 96, and the lower surface of the second riser 98 and the landing panel 72a. The lower surface is flush with the lower surface.

Then, with the first riser plate 96 of the landing panel 72a placed and supported on the upper end of the support wall 40, the side surface 97 of the first riser plate 96 and the support wall 4
0 and the first riser 9
An inorganic face material 110 serving as a finishing material is continuously attached so as to cover the side face 97 of the sixth member 6 and the face 47 of the support wall portion 40. The work of attaching the inorganic surface material 110 is performed on site after the landing panel 72a is supported on the upper end of the support wall 40.

As described above, since the side surface 97 of the first riser plate member 96 and the surface 47 of the support wall portion 40 are flush with each other, the inorganic surface member 110 is continuously attached so as to cover both surfaces. be able to. Therefore, the inorganic surface material 110
The joint between the riser plate member 96 and the supporting wall portion 40 has a good appearance on the side of the landing portion 70 side formed by the riser plate member 96 and the support wall portion 40 without any level difference. Can be prevented.

The present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the present invention.

For example, in this embodiment, in this embodiment, the wall constituting the staircase region is constructed of a panel in which a finishing material is directly adhered to a frame in advance. The present invention is not limited thereto, and the method of constructing a staircase region according to the present invention can be applied to a case where a wall is made of a panel to which a finishing material is not directly applied in advance, or a case where the wall is not a so-called panel.

Further, the position of the landing section is not necessarily limited to a position higher than a half of the distance from the lower floor to the upper floor, and may take various positions. Even when the position of the landing is set to a position lower than a half of the distance from the lower floor to the upper floor, a predetermined area defined by the support wall is secured below the landing. Thus, the space can be effectively used.

[0075]

According to the first aspect of the present invention, even when the stair portion region is constructed using the previously integrated stair unit, the risk of damaging the wall surface is reduced, and the stair unit is placed between the opposing wall surfaces. It can be easily arranged, and simplification and simplification of on-site work can be achieved.

Further, at the same time as constructing the staircase region, a predetermined region defined by the wall can be formed below the landing, and the staircase region where the space under the stairs can be effectively used can be formed. Obtainable.

According to the second aspect of the present invention, the second stair unit is dropped between the third wall portion after the middle wall portion is erected, and is disposed over the landing portion and the upper floor surface portion. However, since this middle wall portion covers the lower side region excluding the upper side region of the second stair unit, the wall portion may be damaged when the second stair unit is attached. Therefore, the work of attaching the second staircase unit becomes easy. Then, by erection of the upper middle floor portion on the floor, one side portion of the second staircase unit is covered by the wall portion over the entire area, and a handrail or the like can be attached.

According to the third aspect of the invention, the wall panel to which the finishing material is attached is constructed only by transporting the wall panel to the site and erecting the wall panel at a predetermined position. Therefore, the construction work of the staircase region is further simplified.

Further, the wall panel is formed by directly attaching an inorganic surface material as a finishing material to both sides of a framed frame, and the stair unit is directly abutted and fixed to the wall surfaces of these walls. Therefore, the width of the steps of the stairs is smaller than that of a conventional configuration in which a stair unit is attached to a wall portion to which a finishing material is attached via a face material forming a wall surface. Can be widened, and no mounting material is required, so that the number of members can be reduced and the mounting operation can be simplified.

According to the fourth aspect of the invention, the area under the landing that can be used as an effective space can be widely secured as a high area. This area can be effectively used as, for example, a toilet or a storage. Further, since the number of steps of the second stair unit attached between the middle wall portion and the third wall portion that are already erected can be reduced, the work of attaching the second stair unit can be simplified. can do.

According to the fifth aspect of the present invention, it is possible to eliminate the seam of the inorganic surface material and cover the landing portion side wall surface formed by the riser plate and the support wall without any step. Therefore, the appearance of the side wall surface of the landing section formed by the riser plate and the support wall is good in appearance, and it is possible to prevent cross cut when performing a cross-bonding as a finishing treatment on the inorganic surface material.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a staircase region constructed by a method of constructing a staircase region according to the present embodiment, viewed from a first wall surface side.

FIG. 2 is a cross-sectional view showing, from above, a staircase region constructed by the method of constructing a staircase region according to the present embodiment.

FIG. 3 is a perspective view showing a first staircase unit and a support wall which form a staircase region.

FIG. 4A is a cross-sectional view showing a state where the first stair unit is mounted between the first wall portion and the middle wall portion, and FIG. 4B is a cross-sectional view of the landing panel; Is a cross-sectional view showing a state in which is attached to a second wall.

FIG. 5 is a cross-sectional view illustrating a fitting structure of a connecting portion between the landing panel and the first stair unit.

FIG. 6 is a perspective view showing a wall panel forming a first wall portion, a second wall portion, and a third wall portion.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Stair part area 12 1st wall part 14 2nd wall part 16 3rd wall part 20 Wall panel 24 Frame 27, 28 Inorganic surface material 30 Middle wall part 32a, 32b, 32c, 32d Wall panel 34 Upper floor Middle wall portion 40 Support wall portion 42 Support wall panel 46 Frame 47 Surface on the second wall side of frame 48 Inorganic surface material 50 First stair unit 60 Second stair unit 70 Landing section 80 Lower floor section 82 Upstairs floor section 90 Step board material 94 Raised board material 96 First riser board material 97 Side face of first riser board material 98 Second riser board material 110 Inorganic face material

Claims (5)

[Claims] 1. A plurality of step plates are provided between a pair of sasaras girders in a region surrounded by first, second and third wall portions standing upright in a U-shape around a step portion setting region. A lower step formed by the first stair unit and an upper step formed by the second stair unit, which is constructed between the lower floor and the upper floor by using a pre-integrated stair unit attached at intervals, A landing section provided between the lower section and the upper section, a support wall section erected in the area to support the first stair unit and the landing section, and the first stair unit. An intermediate wall portion erected between the second stair unit,
A method of constructing a staircase region, comprising: setting the support wall perpendicular to the first wall on the downstairs floor at a joint position of the first staircase unit and the landing section. Providing the first stair unit with one side of the first stair unit in contact with the first wall, and arranging the first stair unit from the lower floor portion to the support wall portion. Constructing the landing section on the second wall side of the first stair unit and in an area surrounded by the first wall section, the second wall section, and the third wall section. And contacting the other side of the first stair unit with the wall of the middle wall, and on the lower floor portion in parallel with the first wall and the third wall. Erecting a middle wall portion, and one side portion of the second staircase unit as the second wall portion, And a step of arranging the second stair unit from the landing section to the upper floor surface section, wherein the second stair unit is arranged from the landing section to the upper floor surface section. . 2. The middle wall portion according to claim 1, wherein the middle wall portion covers a lower side region except for an upper side region of the second stair unit, and after the second stair unit is disposed. Constructing an upper middle wall covering the upper region of the second stair unit at the upper end. 3. The method according to claim 1, wherein the first wall portion, the third wall portion, and the middle wall portion are
At least one wall panel is formed by directly attaching and forming an inorganic surface material serving as a finishing material to both sides of a framed frame, and the first stair unit is configured to have a side portion of the first wall portion. And a method of constructing a staircase region, wherein a side portion of the second staircase unit is directly abutted and fixed to the third wall portion and the middle wall portion, respectively. 4. The landing section according to claim 1, wherein the landing section is constructed at a position higher than a half of a height from the lower floor section to the upper floor section by a predetermined distance. Method of constructing the staircase area. 5. The stepped area construction method according to claim 1, wherein the stepped area is constructed by a first wall section, a second wall section, and a third wall section. A staircase region structure including a staircase unit and a second staircase unit, a landing portion, a middle wall portion, and a support wall portion, wherein the support wall portion has a frame framed in a square shape. And a support wall panel having no surface material attached to at least one surface of the frame body, the one surface facing the second wall portion, and the first wall of the landing section being constructed. At the end of the stair unit, a riser plate whose lower end is supported by the support wall is attached, and one side surface of the riser plate is flush with one surface of the frame of the support wall. And one side of the riser plate and one side of the support wall are finished. Staircase area structure, characterized in that the inorganic surface material forming a is attached continuously over the both surfaces.