JP2000282656A - External stairway mounting structure for unit building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an external stairway mounting structure for a unit building, preventing a narrower living space in a building. SOLUTION: A structure wherein an external stairway 7 is mounted on a unit building having a walking roof with its almost horizontal roof plane 6A possible to walk includes an upper floor unit 20 having a floor surface 25A at the same height as that of the roof plane 6A and protruded from the external wall of the unit building and an external stairway unit 21 with its upper end joined to the upper floor unit 20. As the external stairway 7 is formed to be protruded from the external wall of the unit building, the need for providing a stairway communicating with the walking roof in the building is eliminated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for attaching an external stair to a unit building constructed by combining a plurality of building units.

[0002]

2. Description of the Related Art In recent years, unit-type buildings have been constructed in which a plurality of building units are manufactured in a factory, and these building units are transported to a construction site and combined to build the building in order to shorten the on-site construction. This unit-type building has a walking roof (land roof) with a substantially horizontal roof surface that can be walked.
Is provided (JP-A-10-25814). This walking roof is placed above the building units that make up the top floor.

[0003] Stairs are provided to communicate between the interior of the building on the top floor and the walking roof. Conventionally, when installing the stairs, a tower is provided on the roof, and a stair for communicating with the walking roof is provided inside the tower (conventional example 1). Further, there is a construction in which a building unit provided with an outer staircase is provided next to a building unit constituting a living room on the top floor (conventional example 2).

[0004]

In the prior art 1, there is a problem that a space for providing stairs is required in a building unit arranged below the tower, so that the room space of the building unit is reduced. In Conventional Example 2, since the external stairs are provided inside the building unit, there is a problem that the living room space of the building is narrowed, as in Conventional Example 1.

It is an object of the present invention to provide an external staircase mounting structure for a unit-type building which does not reduce the room space inside the building.

[0006]

Therefore, the present invention provides an upper floor unit having a floor surface at the same height level as a horizontal roof surface, protruding from an outer wall surface of a unit-type building. Are joined together to achieve the above object. Specifically, the outer staircase mounting structure of the unit building according to the present invention, when described with reference to the attached drawings, is constructed by combining a plurality of building units 2 to 4 and has a substantially horizontal roof surface 6A. This is a structure in which an outer staircase 7 is attached to a unit building having a walkable roof that can be walked, and has a floor surface 25A at the same height level as the roof surface 6A and is provided so as to protrude from the outer wall surface of the unit building. An upper floor unit 20 is provided, and outer stair units 21 and 61 whose upper ends are joined to the upper floor unit 20 are provided.

In the present invention having this configuration, since the outer staircase 7 is formed so as to protrude from the outer wall surface of the unit-type building, it is not necessary to provide a stairway for communicating with the walking roof inside the building. Therefore, the living room space is not limited by the stairs. Moreover, in the present invention, since the upper floor unit 20 that connects the outer stair units 21 and 61 and the walking roof has a floor surface 25A at the same height level as the roof surface 6A of the walking roof, the upper floor unit 20 is There is no step with the walking roof, and it is possible to walk safely without tripping between them.

In the present invention, the lower end of the outer staircase unit 21 is joined to a lower floor unit 22 having a floor surface 38A at the same height as the floor of the predetermined floor. A structure that is provided to protrude from the outer wall surface of the type building may be used. In this structure, the lower floor unit 2 joined to the lower end of the outer stair unit 21
Since 2 is at the same height level as the floor of the predetermined floor (for example, the top floor), there is no step between the lower floor unit 22 and the floor of the predetermined floor, and the robot walks safely without tripping between them. be able to.

Further, the unit-type building may be provided with a shelter balcony 46, and a lower end of the outer staircase units 21, 61 may be joined to the floor 16 of the shelter balcony 46. In this structure, it is possible to safely move back and forth between the walking roof 6 and the lower barconi 46 by using the outer staircase units 21 and 61. Further, the outer stair unit 61
Is a spiral staircase having a pillar 71 at the center, and the lower end of the pillar 71 of the spiral staircase is connected to the floor 1 of the lower barconi 46.
6 may be used. In this structure, since the outer staircase 57 is a spiral staircase, the installation space thereof can be small, and therefore, the space of the lower floor balcony 46 to which the lower end of the spiral staircase 57 is joined may be small.

Further, the walking roof 6 may be constituted by a walking roof unit having a floor frame 18, and the floor frame 18 and the upper floor unit 20 may be joined to each other. In this structure, since the walking roof is composed of a unit, the unit can be manufactured together with other building units at a factory and combined at a construction site, thereby shortening the roof construction time at the site. Moreover,
Since the upper floor unit 20 is joined to the floor frame 18 as a structure, the outer stair units 21 and 61 can be firmly attached to the walking roof unit without being accidentally detached.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. Here, in each embodiment, the same components are denoted by the same reference numerals, and description thereof will be omitted or simplified.
1 to 5 show a first embodiment of the present invention. FIG. 1 is a perspective view showing the entire configuration of the first embodiment. In FIG. 1, the unit-type building has a three-story building body 5 which is provided on a foundation 1 and is constructed by combining a plurality of building units 2 to 4, and a substantially horizontal roof surface can be walked. A plurality of walking roof units 6,
And an external staircase 7 protruding from the outer wall surface of the building body 5.

A plurality of building units 2 to 4 (6 in the figure)
), The first-floor building unit 2 constituting the first-floor portion,
A three-story building unit 3 comprising a plurality (six in the figure) of the first-floor part constituting the first floor part and a plurality of (six in the figure) a three-story building unit 4 constituting the third-floor part Is done. Each of these building units 2 to 4 has a basic configuration in which a floor panel 15 is attached to a frame 14 formed in a substantially box shape from columns 11, an upper beam 12, and a lower beam 13, as shown in FIG. I have. Interior parts such as an outer wall panel, an inner wall panel, and a kitchen, which are not shown, are attached to the skeleton 14 as needed for each of the building units 2 to 4.

In FIG. 1, a plurality of walking roof units 6 (six in the figure) constitute a walking roof, and the walking roof is substantially horizontal and can be walked.
A is formed. This walking roof unit 6 is shown in FIG.
As shown in FIG. 1, the floor 16 includes a handrail 17 formed from the edge of the floor 16. The floor portion 16 includes a floor frame 18 formed of four steel materials in a rectangular shape, a joist (not shown) provided on the floor frame 18, and a floor panel 19 (not shown) provided on the upper surface of the floor frame 18. FIG. 1). The size of the floor frame 18 on the plane is the same as the size of the frame 14 of the building units 2 to 4 on the plane.
The handrail portion 17 has a structure in which a wall panel or the like is attached to a framework (not shown).

FIG. 4 shows a specific structure of the outer staircase 7. In FIG. 4, an outer staircase 7 includes an upper floor unit 20 protruding from an outer wall surface of the building body 5 and an outer staircase unit 2 having an upper end joined to the upper floor unit 20.
1 and a lower floor unit 22 joined to the lower end of the outer staircase unit 21. 1 and 4
, The upper floor unit 20 includes a frame 23 formed of four steel members in a rectangular shape in a plane, a reinforcing steel member 24 provided inside the frame 23, and a floor panel 25 provided on the upper surface of the frame 23. And a handrail 26 erected on the frame 23. The floor surface 25A of the floor panel 25 is formed at the same height level as the roof surface 6A of the walking roof unit 6.

Two corners of the frame 23 of the upper floor unit 20 are formed as mounting portions 23A, and the frame 23 and the floor frame 18 of the walking roof unit 6 are joined at the mounting portions 23A. FIG. 5 shows the structure of the mounting portion 23A. In FIG. 5, the floor frame 18 of the walking roof unit 6 is provided with a bracket 30 whose side surface is formed in a U-shape from an upper plate 27, a lower plate 28 and a front plate 29, and the front plate 29 of the bracket 30 includes: At the center thereof, a positioning pin 31 is projected, and
A bolt insertion hole 29A is formed around 1.

An end plate 32 is fixed to an end of the frame 23 of the upper floor unit 20. A pin insertion hole 32A through which the positioning pin 31 is inserted is formed in the end plate 32, and a plurality of bolt insertion holes 32B are formed around the pin insertion hole 32A. The upper floor unit 20 and the walking roof unit 6 are joined by screwing the bolt 33 inserted into the bolt insertion holes 29A and 32B with the nut 34.

In FIG. 1 and FIG.
Reference numeral 1 denotes two side girders 35 arranged to face each other, a plurality of step boards 36 provided between these side girders 35, and side girders 3
5 is a straight staircase composed of a handrail 37 erected at 5. The upper edge of the side beam 35 is joined to the frame 23 of the upper floor unit 20, and the lower edge of the side beam 35 is joined to the lower floor unit 22.

The lower floor unit 22 is connected to the upper floor unit 20.
And the basic configuration is the same. That is, the lower floor unit 22
Is a frame 2 formed in a plane rectangular shape from four steel materials.
3, a reinforcing steel member 24 provided inside the frame 23, and a floor panel 38 provided on the upper surface of the frame 23.
And a handrail 26 erected on the frame 23. The floor panel 38 has a floor surface 38A at substantially the same height level as the floor of the building unit 4 for the third floor. Above the lower floor unit 22, an entrance 4A is formed in the building unit 4 for the third floor. Two corners of the frame 23 of the lower floor unit 22 are formed as mounting portions 23A, and the frame 23 and the upper beam 12 of the building unit 3 for the second floor are joined by the mounting portions 23A. The structure of the mounting portion 23A is shown in FIG. 5, and the specific configuration is the same as the joint structure between the walking roof unit 6 and the upper floor unit 20.

In the first embodiment having the above construction, the building units 2 to 4, the walking roof unit 6, and the upper floor unit 20, the outer stair unit 21, and the lower floor unit 22 constituting the outer stairs 7 are manufactured in a factory. . These units are transported to the construction site and assembled on the foundation 1 to be built. The upper floor unit 20, the outer staircase unit 21, and the lower floor unit 22 constituting the outer staircase 7 may be combined at a factory to form the outer staircase 7, and installed in the building body 5 in this state, or , Upper floor unit 20, outer staircase unit 21, and lower floor unit 22
May be combined at the construction site.

Therefore, the first embodiment has the following advantages. When attaching the outer stairs 7 to a unit building having a walking roof whose substantially horizontal roof surface 6A is made walkable,
Since the outer staircase 7 is formed so as to protrude from the outer wall surface of the unit-type building, it is not necessary to provide a stair that communicates with the walking roof inside the building. Therefore, the living room space of the building main body 5 is not limited by the stairs. The outer staircase 7 has a floor surface 25 at the same height level as the roof surface 6A.
The upper floor unit 20 having the upper floor unit 20 and the outer stair unit 21 having an upper end joined to the upper floor unit 20 has an upper floor unit 20. Since there is a floor surface 25A at the same height level as the roof surface 6A of the roof, there is no step between the upper floor unit 20 and the walking roof. Therefore, it is possible to walk safely without tripping between them.

The lower end of the outer staircase unit 21 is joined to a lower floor unit 22 having a floor surface 38A at the same height as the third floor, and the lower floor unit 22 is provided so as to protrude from the outer wall surface of the unit building. Configuration
Since the lower floor unit 22 is at the same height level as the third floor, there is no step between the lower floor unit 22 and the third floor. Therefore, it is possible to safely walk between the lower floor unit 22 and the third floor without tripping.

Since the walking roof is composed of the walking roof unit 6 having the floor frame 18, the walking roof unit 6 is manufactured together with the other building units 2 to 4 at the factory and combined at the construction site to provide a walking roof unit. Roof construction can be performed accurately in a short time. Since the upper floor unit 20 is joined to the floor frame 18 functioning as a structure, the outer staircase 7 can be firmly attached to the walking roof unit 6. Therefore, the outside stairs 7 do not accidentally come off, and safety can be ensured. Since the lower floor unit 22 is joined to the upper beam 12 functioning as a structure of the building unit 3, the outer staircase 7 can be firmly attached to the building unit 3. for that reason,
The outside stairs 7 do not accidentally come off, and safety can be ensured.

Next, a second embodiment of the present invention will be described with reference to FIGS. The second embodiment differs from the first embodiment in the shape of the building body and the installation location of the lower floor unit, and the other configuration is the same as the first embodiment. FIG. 6 is a perspective view showing the overall configuration of the second embodiment. In FIG. 6, the unit-type building is a three-story building body 45 provided on the foundation 1, a walking roof unit 6 provided on the building body 45 to form a walking roof, and a building body 45.
And outer stairs 47 protrudingly provided on the outer wall surface.

The building body 45 includes a plurality of building units 2 to 4
However, two first-floor building units 2 and two-floor building units 3 are formed on the front side thereof so as to protrude. On the second-floor building unit 3 formed so as to protrude, a lower house balcony unit 46 constituting the lower house balcony is provided. The undercarriage balcony unit 46 has the same basic configuration as the walking roof unit 6. In other words, the subcontainer balcony unit 46 is connected to the floor 16
And a handrail portion 17 formed to rise from an edge of the floor portion 16. The floor portion 16 has a floor frame 18 formed in a planar rectangular shape, and an illustration provided on the floor frame 18. And a floor panel 19 (not shown) provided on the upper surface of the floor frame 18.

The specific structure of the outer stairs 47 is shown in FIG. 6 and 7, the outer stairs 47 include an upper floor unit 20 protruding from the outer wall surface of the building body 45, an outer stair unit 21 having an upper end joined to the upper floor unit 20, and an outer stair unit. And a joining member 52 for joining the lower end of the unit 21 to the floor 16 of the shelter balcony unit 46. The joining member 52 includes two first reinforcing steel members 53 provided between two opposed steel members of the floor frame 18, and a straight line of the side girders 35 provided between the first reinforcing steel members 53. 2 placed above
Book second reinforcing steel material 54 and these second reinforcing steel materials 5
4 and a bracket 55 for joining the lower end of the outer staircase unit 21 to each other.

Therefore, according to the second embodiment, in addition to the same operation and effect as the first embodiment, the following operation and effect can be obtained. The unit-type building includes a shed barconi unit 46,
Lower end of outer staircase unit 21 is Shimoya Balconi unit 4
Because it is joined to the floor 16 of the sixth floor, it is possible to use the outer stairs 47 to safely move between the walking roof and the undercarriage balcony. The lower end of the outer staircase unit 21 is joined to the floor 16 of the shelter balcony unit 46 via a joint 52, and the joint 52 is connected to the first reinforcing steel 53 provided on the floor frame 18 and the second reinforcing steel 53. (1) The outer stair unit 21 is composed of the second reinforcing steel member 54 provided on the reinforcing steel member 53 and the bracket 55 provided on the second reinforcing steel member 54.
Can be firmly joined to the subcontainer balcony unit 46.

Next, a third embodiment of the present invention will be described with reference to FIGS. The third embodiment is different from the second embodiment in the structure of the outer staircase unit.
This is the same as the embodiment. FIG. 8 is a perspective view showing the overall configuration of the third embodiment. In FIG. 8, the unit-type building is a three-story building body 45 provided on the foundation 1, a walking roof unit 6 provided on the building body 45 to form a walking roof, and the outside of the building body 45. And an outer staircase 57 protruding from the wall surface.

The specific structure of the outer stairs 57 is shown in FIG. 8 and 9, the outer stairs 57 include an upper floor unit 20 protruding from the outer wall surface of the building body 45, an outer stair unit 61 having an upper end joined to the upper floor unit 20, and an outer staircase 61. And a joining member 62 for joining the lower end of the unit 61 to the floor 16 of the shelter balcony unit 46. Outer stairs unit 61
Is a spiral staircase having a support 71, a plurality of step plates 72 spirally arranged around the support 71, and a handrail 73 provided at an edge of the step plate 72. The lower end of 71 is joined to the floor 16 of the shelter balcony unit 46 via a joining member 62. Joining member 6
2 is the floor frame 1 of the adjacent Shimonya Balconi unit 46
8 is formed from a bracket provided at the connection portion.

Therefore, according to the third embodiment, in addition to the same operation and effect as the second embodiment, the following operation and effect can be obtained. The outer staircase unit 61 is a spiral staircase having a support 71 at the center, and the lower end of the support 71 of the spiral stair is joined to the floor 16 of the shed balcony unit 46, so that the installation space of the spiral staircase is small. Yes. Therefore, the space of the lower house balcony where the lower end of the spiral staircase is joined may be small. In other words, the upper space is not obstructed by the stairs.

The present invention is not limited to the above-described embodiment, but includes modifications and improvements as long as the object of the present invention can be achieved. For example,
In the above embodiment, the walking roof is replaced with a plurality of walking roof units 6.
And the lower part balcony is composed of a plurality of lower part balcony units 46. In the present invention, these parts are
It may be constructed at a construction site using steel materials or the like. Further, the mounting structure between the upper floor unit 20 and the walking roof unit 6 is the mounting portion 23A shown in FIG. 5, but in the present invention,
Various mounting structures can be adopted. For example, the floor frame 18 of the walking roof unit 6 and the upper floor unit 20
May be simply joined by bolts and nuts, or may be welded.

[0031]

According to the present invention, there is an effect that the living room space inside the building is not narrowed.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an overall configuration of a first embodiment of the present invention.

FIG. 2 is a perspective view showing a basic configuration of a building unit.

FIG. 3 is a perspective view illustrating a basic configuration of a walking roof unit (a vault balcony unit).

FIG. 4 is a perspective view showing a main part of the first embodiment.

FIG. 5 is an exploded perspective view showing a main part of a joint structure between an outer staircase and a building body.

FIG. 6 is a perspective view showing an overall configuration of a second embodiment of the present invention.

FIG. 7 is a perspective view showing a main part of the second embodiment.

FIG. 8 is a perspective view illustrating an entire configuration of a third embodiment of the present invention.

FIG. 9 is a perspective view showing a main part of the third embodiment.

[Explanation of symbols]

 2-4 Building unit 5,45 Building body 6 Walking roof unit 7,47,57 Outer stairs 20 Upper floor unit 21,61 Outer stair unit 22 Lower floor unit 46 Shimoya Balconi unit

Claims (5)

[Claims] 1. A structure in which a plurality of building units are combined and built, and an outer staircase is attached to a unit-type building having a walking roof whose substantially horizontal roof surface is made walkable, the same as the roof surface. A unit comprising an upper floor unit having a floor surface at a height level and protruding from an outer wall surface of a unit-type building, and an outer stair unit having an upper end joined to the upper floor unit. Outer stairs mounting structure of a type building. 2. The outer stair mounting structure for a unit building according to claim 1, wherein a lower end of the outer stair unit is joined to a lower floor unit having a floor at the same height level as a floor of a predetermined floor. An outer staircase mounting structure for a unit-type building, wherein the lower floor unit is provided so as to protrude from an outer wall surface of the unit-type building. 3. The outer stair mounting structure for a unit building according to claim 1, wherein the unit building has a shelter balcony and a lower end of the outer stair unit is joined to a floor of the shelter balcony. Outer staircase mounting structure for a unit building. 4. The outer staircase mounting structure according to claim 3, wherein the outer staircase unit is a spiral staircase having a pillar in the center, and a lower end of the pillar of the spiral staircase is formed by the lower floor balcony. Outer staircase mounting structure for a unit building, which is joined to the floor. 5. The external staircase mounting structure for a unit-type building according to claim 1, wherein said walking roof comprises a walking roof unit having a floor frame, and said floor frame, said upper floor unit and The outer staircase mounting structure of a unit-type building, characterized by being joined.