JPH05302417A - Installation structure for stair - Google Patents

Abstract

PURPOSE:To secure a wide space on the front side of the first floor of a building by not protruding the first floor portion of a stair provided outside a wooden multi-story apartment building from the outer wall line of the building. CONSTITUTION:The first stair section 12a which is the first stair portion from the ground floor is formed to rise toward the inlet direction (outside direction) from the depth side of the stair installation area of a building, and the upper portion from the landing section 18a of a mezzanine is protruded outward from the outer wall line 200 of the building. Thereby, the first floor portion of the stair section 12 is not protruded, and the upper portion from the landing section 18a of the mezzanine is protruded outward from the outer wall line 200 of the building in an overhang type structure. No stair section 12 is protruded at the front portion of the first floor of the building, a wide space can be secured, and the wider space for the passage of people and vehicles can be secured on the front side of the building.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building structure, and more particularly to a building structure in which a wooden building body for a plurality of apartments is combined with an iron staircase.

[0002]

2. Description of the Related Art Stairs in an apartment house constructed on a plurality of floors and continuous left and right are usually installed on the front side of the building at predetermined intervals. And
A part of the stairs is formed so as to project outward from the outer wall line on the front side of the building.

FIG. 3 shows an example of a building structure having such a staircase, and is a schematic vertical sectional view of a stairway installation portion of a multi-storey building.

In the figure, a recessed space 100 for installing a staircase is provided at a predetermined location of the building body 10, and a staircase 12 is installed in this recessed space 100.

A part of the stair part 12 is the main body 10 of the building.
The outer wall surface line 200 is projected outward. Specifically, the outer side portion of the staircase portion 12 projects outward from the outer wall surface line 200 of the building body 10, and the first staircase portion 12a, which is the first ascending portion from the first floor to the second floor, is It is configured to rise from the entrance side of the building body 10 toward the back side. Therefore, a predetermined space 300 is required in front of the lowermost portion of the first staircase portion 12a. That is, if the door 16 is directly connected to the first stair part 12a, it is difficult for the stairs user to climb the stairs. Therefore, a small space 300 is provided between the door 16 and the first stair part 12a. ing. Therefore, in such a staircase structure, a structure projecting outward from the outer wall surface line 200 of the building is taken even on the first floor.

[0006]

However, according to the building structure as shown in FIG. 3, since there is not enough space in front of the first floor, the stairs are placed close to each other so that the other plural floors are opposed to each other. In the case of constructing a building or a wall close to the building, the projecting staircase 12 may hinder the passage of the first floor. That is, there is a problem that a sufficient space for a vehicle or the like cannot be secured. Further, when the building body 10 is made of a wood-based material, it is not preferable in terms of strength to overhang only the landing portion of the stairs, and a member for supporting the overhanging tip of the landing portion is required. However, there is a problem in that the operation of a vehicle or the like is hindered under the above conditions.

The present invention has been made to solve the above-mentioned problems, and an object thereof is to dispose the first floor portion of a staircase provided outside a wooden multi-storey apartment building outside the building. An object of the present invention is to provide a building structure that does not protrude from the wall line and can secure a wider space on the front side of the first floor of the building.

[0008]

In order to achieve the above object, a building structure according to the present invention is a wooden building body formed on a plurality of floors for an apartment house and having a recessed space for stair installation on one side wall. And a staircase made of iron installed in the recessed space of the building main body, wherein the stairway part is inclined from the back side of the recessed space to the upper outside in the first floor to form the entrance part. While matching the building exterior wall line,
It is characterized in that it is projected outward from the outer wall line of the building above the landing on the mezzanine floor.

[0009]

According to the building structure having the above-mentioned structure, the first rising part of the stairs from the ground floor is structured so as to face the entrance direction from the back side of the stairs installation area of the building. There is no need to provide a space on the side to start climbing stairs. That is, the landing area, which is the mezzanine, starts to rise from the back side of the stairs installation area and first projects from the outer wall line of the building.

Therefore, the entrance portion of the first floor of the building can be made to be in a state of being coincident with the outer wall surface line of the building rather than being projected from the outer wall surface line. In other words, the staircase portion above the mezzanine portion has an overhang shape projecting outward from the outer wall surface line of the building.

As a result, a large space is secured at the entrance of the first floor of the building, and even if two buildings are constructed close to each other at the positions where the stairs are opposed to each other or a wall is provided close to the first floor, the first floor is provided. Since there is no projecting portion of the staircase in the part, it is possible to secure a sufficient space for the passage of people or cars.

[0012]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 shows a building using a building structure according to an embodiment, and as shown in the drawing, a three-story building body 10
In the figure, there is shown a building of a type in which the stair part 12 formed separately from this is installed.

In the present embodiment, the building body 10 is constructed of wood, and the staircase portion 12 is constructed of iron members.

A recess space 100 for installing stairs is formed in the building body 10, and doors 11 for entrances and exits of each floor are attached to the inner wall portion of the recess space 100. Then, the staircase 12 is fitted and installed in the recessed space 100. As a result, the strength of the staircase can be made sufficient even in a wooden building, and the construction work of the staircase is made extremely easy.

A feature of this embodiment is that the first staircase portion 12a, which is the first staircase portion from the ground floor, rises from the back side of the stairway installation area of the building toward the entrance side (outside). It is configured as follows.

FIG. 2 is a schematic vertical sectional view of a building for clarifying such a structure. As shown in the drawing, the first staircase portion 12a, which is the starting portion from the first floor to the second floor, is a staircase. It is configured to rise from the back side of the part installation area toward the entrance. That is, the stairs user enters the building, proceeds once to the inner part of the stairs installation area, turns around, and climbs the stairs toward the entrance (outward direction).

Further, the installation structure is such that a part of the landing section 18a, which is the mezzanine, protrudes from the outer wall surface line 200 of the building.

Further, as for the stairway portion going up from the second floor to the third floor, the first ascending portion is constructed to go up from the back side of the building toward the front side.

That is, the landing section 18b between the second floor and the third floor
Is partially projected from the outer wall surface line 200.

With such a structure, it is possible to form the first floor entrance portion of the building body 10 so as to be flush with the building exterior wall surface line 200. That is, unlike the stair installation structure shown in FIG. 3, since the stairs rising start portion of the first floor portion does not rise from the entrance side to the back side, the outer wall line 200 outside the first floor portion of the building This is because it is not necessary to provide the space 300 in the.

With such a structure, the staircase 12 extends from the landing section 18a of the mezzanine to the exterior wall surface line 200 of the building.
The staircase 12 does not project to the front part of the first floor of the building body 10 because it has an overhang type structure that projects outward. Therefore, a wide space can be secured in that portion.

For example, even when the adjacent building is constructed such that the projecting staircases 12 face each other or a wall is provided in close proximity, the stairs projecting from the outer wall surface line 200 on the first floor portion. Since there are no sections, the space of the aisle becomes large, and it becomes easy to secure a space for pedestrians and vehicles.

Even in the case of the overhang type structure as described above, for example, by installing the pillar 12b of the stair part 12 in the outer wall line 200 of the building and supporting the landing parts 18a and 18b by this. , Its strength can also be sufficient.

A door 16 is provided at the entrance on the first floor, and a cover 14 such as a window is provided outside the stair 12 above the landing 18a. Therefore, the stairs
The space in which is installed is shut off from the outside air by the door 16 and the cover portion 14, and effectively prevents outside air from flowing into the room and from falling snow when the user goes in and out of the room. It is designed to form a windbreak chamber.

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

For example, although the three-story building is shown as an example in the above embodiment, the present invention is not limited to this, and the two-story building can also use the building structure according to the present invention.

As described above, according to the building structure of the present invention, the staircase portion does not protrude from the outer wall surface line of the building between the ground and the landing section of the mezzanine floor. Is possible. As a result, the staircase projecting from the building has an overhang structure, and a large space in front of the entrance on the first floor can be secured. Therefore, the passage space on the first floor can be widened even when other buildings are built close to each other with the stairs facing each other, or when a wall is provided near the stairs. It is easy to secure a space for

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a building using a building structure according to an embodiment.

FIG. 2 is a schematic vertical sectional view showing the operation of the building using the stairway installation structure of the present embodiment.

FIG. 3 is an explanatory diagram showing an example of a conventional building structure in which a staircase portion is configured to project outward from a first floor portion of a building.

[Explanation of symbols]

 10 Building Main Body 12 Staircase 12a First Staircase 14 Cover 16 Door 200 Exterior Wall Line

Claims (1)

[Claims] 1. A wooden building main body formed on a plurality of floors for an apartment house and having a recessed space for stair installation on one side wall, and an iron staircase installed in the recessed space of the building main body. In the building structure, the staircase portion inclines upward from the back side of the recessed space on the first floor so that the entrance coincides with the building outer wall line, and the building outer wall is located above the mezzanine landing area. A building structure characterized by being projected outward from the line.