JPH08209876A - Stairs structure of unit type building - Google Patents

Abstract

PURPOSE: To reduce field work by performing most of producing work of stairs striding between two building units in a factory. CONSTITUTION: Stairs 20 in a unit type building 1 are formed of a unit part 21 which constitutes most of stairs and is manufactured in a factory beforehand and is installed and upper and lower plate-like parts 22A and 22B which are installed above and below the unit part 21 at a job site and constitute a residual part of the stairs. These stairs 20 are arranged so as to stride over lower floor building units 3A and 3B adjacent to each other in the horizontal direction as well as to stride over the lower floor building units 3A and 3B and an upper floor building unit 4B.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stair structure for a unit type building.

[0002]

BACKGROUND ART A unit-type building is built by combining a plurality of lower-floor building units and upper-floor building units produced in advance in a factory at a construction site. A staircase attached to such a unit-type building is provided with a plurality of steps and risers and sasara girders provided on both sides thereof, and each of these members is assembled on site to form a staircase. There is.

[0003]

By the way, in a unit type building, it is desirable to perform as much work as possible in a factory and minimize work on site. The stairs, on the other hand, lead to building units on the upper and lower floors, so
It is provided across two building units. For this reason, it is not possible to assemble the step plate and the riser plate and the like into a unit in advance at the factory. However, assembling all the step plates and riser plates on site to form the stairs of a unit-type building causes a problem that work efficiency is poor as the site work increases.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a staircase structure for a unit building in which most of the production work of a staircase extending between two building units can be performed in a factory and the work on site is reduced.

[0005]

A staircase structure for a unit-type building according to the present invention constitutes a large part of a staircase, and includes a unit part previously assembled in a building unit at a factory and upper and lower parts of the unit part. It is characterized in that at least one of them is provided with a plate-like portion that constitutes the rest of the stairs on site.

In the staircase structure of this unit type building,
The plate-shaped portion may be the uppermost step plate and the riser plate of the stairs, and in this case, a groove into which the uppermost riser plate is inserted may be formed in the second highest step plate. . In addition, the plate-shaped portion,
It may be the lowest step plate and the riser plate.

In the present invention, below the uppermost step plate,
You may provide the support material fixed to a handrail wall at both ends of the width of a staircase, and attaching the uppermost step board and fixing the uppermost riser board.

[0008]

According to the present invention as described above, since the unit portion constituting most of the stairs is installed in the building unit in the factory in advance, most of the production work of the stairs extending between two building units is performed in the factory. Can be done, which reduces on-site work.

In the stair structure of this unit type building,
If the plate-shaped part is the uppermost step plate and riser plate of the stairs, and the groove for inserting the uppermost riser plate is formed in the second uppermost step plate, the uppermost step When inserting the uppermost kicking plate after inserting the step plate, if you insert the uppermost kicking plate in the groove, the position of the kicking plate will be maintained and you do not need to support it, and nailing work is easy. Becomes

In the present invention, below the uppermost step plate,
If a support material is provided that is fixed to the handrail walls at both ends of the stairs in the width direction, and the top step plate is attached and the top riser plate is fixed, the top step plate is attached to this support material. Since it is only necessary to attach the riser plate, it is easy to position the step plate and the riser plate, which facilitates the attachment work.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a unit-type building 1 of this embodiment. This unit-type building 1 includes a plurality of lower-floor building units 3 arranged on a foundation 2 and a plurality of upper-floor building units 4 placed on these lower-floor building units 3.
And a roof 5 provided above the upper-floor building unit 4.

Each building unit 3 etc. is composed of four pillars 10 standing upright at four corners, and four upper and lower beams 11 and 12 connecting upper and lower ends of these pillars 10 to each other. The skeleton 13 is provided, and the ceiling surface material 1 is attached to the skeleton 13.
4, floor material 15, inner wall 16, outer wall 17, etc. are attached.

In such a unit-type building 1, stairs 20 leading from the lower floor to the upper floor are provided.
Is formed of a unit portion 21 that constitutes the majority of the stairs, and upper and lower plate-shaped portions 22A and 22B that are attached above and below the unit portion 21 and constitute the rest of the stairs. The stairs 20 are provided so as to straddle the lower floor building units 3A and 3B that are horizontally adjacent to each other and to straddle the lower floor building units 3A and 3B and the upper floor building unit 4B. In addition, the staircase 20 includes a plurality of step plates 23 and a plurality of riser plates 24, and is formed by connecting both ends of the step plate 23 and the riser plates 24 with a sara 25.

The unit portion 21 is attached to the lower-floor building unit 3B, and has a second step plate 23B and a riser plate 2.
4B to the twelfth step plate 23L and the riser plate 24L are joined by the sasara girder 25 and are supported by the columns 26. Such a unit portion 21 is manufactured in advance in a factory and is attached to the lower-floor building unit 3B.

As shown in FIGS. 2 and 3, the upper plate-shaped portion 22A is formed by the uppermost thirteenth step plate 23M attached to the upper floor building unit 4B and the riser plate 24M. . That is, the lower beam 12 of the upper floor building unit 4B
A groove-shaped intermediate beam 18 similar to the lower beam 12 is hung at a position in the vicinity of, and a square-shaped attachment member 30 continuous in the width direction of the stairs 20 is attached to the intermediate beam 18. Further, at a position adjacent to the mounting member 30, a cross section L
While the mold-shaped receiving member 31 is fixed to the handrail wall 19,
The stairs 20 are arranged and provided at both ends in the width direction.
The upper surfaces of the mounting member 30 and the receiving member 31 are flush with each other.
However, it is designed to be attached on site, for example, with nails.

A thirteenth step riser plate 24M is attached to the front surface of the receiving member 31. At this time, a single groove 27 along the width direction of the stairs is formed on the inner side of the twelfth step plate 23L in the unit portion 21, and the lower end of the riser plate 24M is formed in the groove 27. Is then inserted, and then the upper part is pressed against the front stepped portion of the step plate 23M and fixed by, for example, a nail 28 or the like. When inserting the lower end of the riser plate 24M into the groove 27, the groove 27 may be filled with an adhesive. Also,
Reference numeral 15A in FIG. 2 is a floor material for joints, and reference numeral 6 is a connecting plate for connecting upper and lower floor building units.

As shown in FIG. 4, the lower plate-like portion 22B is formed by a first step plate 23A which is the lowest step of the stairs 20 and a riser plate 24A, and the lower floor building units 3A and 3B.
It is installed so that it can be installed on site. That is, in the field, on the floor material 15A for joints stretched between the floor beams 12 of the lower-floor building units 3A and 3B that are horizontally adjacent to each other, on the floor surface material for joints that is continuous with the surface girders 25 of the unit portion 21, the field surface salary. The beam 35 is attached, and a square-shaped attachment plate 36 arranged across the width direction of the stairs 20 is attached.

Further, the first step plate 23 extends over the on-site sarus girder 35 and the sasara girder 25 of the unit section 21.
A is attached by, for example, nailing, adhesion, or the like, and the riser plate 24A of the first stage is attached to the front surface of the attachment plate 36.

FIG. 5 shows an example in which the cover member 40 is covered on the front surface of the thirteenth step plate 23M, and in particular, the carpet is placed on the floor material 15 such as the upper floor building unit 4B. This is the case where the floor finishing material 45 consisting of is laid. According to this, the cover member 40 is in the shape of a numeral 7 in cross section, and after the step plate 23M and the riser plate 24M are joined by the nails 41, the cover member 40 is covered with the adhesive or the like on the front part of the step plate 23M, As a result, the nail 41 is hidden. In addition, the upper surface of the cover member 40 and the upper surface of the floor finishing material 45 have substantially the same height. The cover member 40
Can also be used when a floor finish made of flooring is laid on the floor material 15.

According to this embodiment as described above, the following effects can be obtained. That is, the second step plate 23A and the riser plate 24A, which form the majority of the stairs 20, to the twelfth step plate 23L and the riser plate 24L are joined by the sasara girder 25 and supported by the columns 26. Since the unit portion 21 is preliminarily attached at the factory, only the first step plate 23A and the riser plate 24A, and the thirteenth step plate 23M and the riser plate 24M are included. It can be installed on-site, which allows the majority of stair production work to be done at the factory, thus reducing on-site work.

Further, since the receiving member 31 is provided below the step plate 23M, the step plate 23M can be easily attached when the thirteenth step plate 23M is mounted on the site. Further, on the upper surface of the twelfth step plate 23L, the first
Groove 27 into which the riser plate 24M of the third stage riser plate 24M is inserted
When the riser plate 24M is attached after the thirteenth stage plate 23M is attached, the riser plate 2 is formed.
The lower end of 4M can be inserted into the groove 27 and the upper part of the riser plate 24M can be nailed to the step plate 23M, which facilitates the work.

A cover member 40 is attached to the front of the thirteenth step plate 23M.
Can be used for various floor finishing materials such as a floor finishing material 45 made of carpet and a floor finishing material made of flooring, and therefore can be used for various floor finishing materials with a small number of members.

The present invention is not limited to the above-described embodiments, but includes the following modifications as long as the object of the present invention can be achieved. For example, in the above-mentioned embodiment, the stairs 20 straddle the lower floor building units 3A and 3B that are horizontally adjacent to each other, and straddle the lower floor building units 3A and 3B and the upper floor building unit 4B. Although provided, it is not limited to this and may be a staircase that extends over one lower floor building unit 3B and one upper floor building unit 4B.

[0024]

As described above, according to the staircase structure of the unit type building of the present invention, since the unit part constituting most of the staircase is installed in the building unit in advance at the factory, two building units are installed. Most of the production work of the stairs spanning between can be performed in the factory, which has the effect of reducing the work on site.

[Brief description of drawings]

FIG. 1 is an overall view showing a unit-type building according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a main part of this embodiment.

FIG. 3 is a perspective view of FIG.

FIG. 4 is a cross-sectional view showing a main part of this embodiment.

FIG. 5 is a cross-sectional view showing a state in which a cover member is covered on the uppermost stage of the stairs of this embodiment.

[Explanation of symbols]

 1 unit type building 3 lower floor building unit 4 upper floor building unit 18 middle beam 20 stairs 21 unit part 22A upper plate part 22B lower plate part 23 step plate 23A first step plate 23L 12th step Step plate 23M 13th step plate 24 Raising plate 24A 1st step raising plate 24L 12th step raising plate 24M 13th stage raising plate 25 Sasara girder 27 Groove 31 Receiving member

Claims (5)

[Claims] 1. A unit part that constitutes a large part of a staircase and is installed in a building unit at a factory in advance, and at least one of the upper and lower parts of this unit part is attached on site and the remaining part of the staircase. A stair structure of a unit-type building, characterized in that it is configured by including a plate-like portion that constitutes a part. 2. The staircase structure of a unit type building according to claim 1, wherein the plate-shaped portion is a top step plate and a riser plate of the staircase. . 3. The staircase structure of a unit type building according to claim 1, wherein the plate-shaped portion is a bottom staircase and a riser board of the staircase. . 4. The stair structure for a unit-type building according to claim 2, wherein a groove into which the uppermost riser plate is inserted is formed in the second uppermost step plate. A stair structure in a unit building. 5. The stair structure for a unit-type building according to claim 2, wherein the uppermost stairs are below the stairs.
A unit type building characterized in that it is fixed to the handrail walls at both ends in the width direction of the stairs, and is provided with a support member for attaching the uppermost step plate and fixing the uppermost riser plate. Stair structure.