JPH04124362A - Structure of stairway - Google Patents

Abstract

PURPOSE:To enhance the efficiency of construction by a method in which a folded framework and upper and lower step frames are attached to the first and second intermediate horizontal parts provided between side columns and central column and the first and second back horizontal parts provided to the back wall. CONSTITUTION:The first and second intermediate horizontal parts 9 and 10 are set at different levels between the first and second side columns 5 and the central column 7 in a stairway. The first and second back horizontal parts 11 and 12 of the same level as the parts 9 and 10 are fixed to the back wall panel 23. A folded framework 16, a lower step frame 14, and an upper step frame are supported on the parts 9, 10, 11, and 12 to form a vertically lapped curved step. The construction work can thus be made easier.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention can be formed by sequentially stacking bending staircases provided on the outer wall of a high-rise house, for example, in an upward direction. This invention relates to the structure of a staircase that can reduce the site area and streamline the work of installing stairs leading to the upper floors.

[Conventional technology]

For example, in a multi-story house such as a multi-story apartment complex, a U-shaped winding staircase is often provided to connect the upper and lower hallways in order to make effective use of the site.

Conventionally, such stairs have been constructed using support pillars a, as shown in Fig. 8.
A landing C was formed by a pedestal supported by a platform, and the landing C was connected to the upper and lower floors by staircases d and d.

[Problem to be solved by the invention]

However, in such a structure in which the staircase part d is supported by a trestle, in order to add a bending staircase leading to the third floor, for example, it is necessary to erect a new trestle.
The construction requires time and effort, which reduces the efficiency of the installation work and reduces productivity.

The present invention is based on supporting the upper and lower stair frames and the folding frame on the middle horizontal members and back horizontal members provided on the two side pillars, the middle pillar, and the back wall. The purpose of the present invention is to provide a structure of a staircase room in which the above-mentioned problems can be solved by sequentially installing folding staircases upward.

[Means to solve the problem]

In order to achieve the above object, the stairway structure of the present invention is a structure of a stairway in which a bending staircase for the main body of the house is provided adjacent to the outer wall part of the main body of a multi-story house, and the stairway is provided with a bending staircase for the main body of the house. A first side pillar, a second side pillar, which have a side wall perpendicular to the part, and a back wall that connects the rear end of the side wall, and which are erected to face each other at an intermediate position of the side wall; a middle pillar installed at an intermediate position between the side pillars; a first middle horizontal member installed between the first side pillar and the middle pillar; The connecting beam connecting the first back and horizontal members of the same height as the middle and horizontal members supports the upper end of the lower climbing stair frame that forms the ascending stairs from the lower floor of the bending staircase, while supporting the second A second member connecting the side pillars and the middle pillar and located higher than the first middle horizontal member.
A folding frame body for forming a bending part of the stairs is formed by the middle and horizontal members and the second back and horizontal members provided on the back wall and having the same height as the second middle and horizontal members, in cooperation with the joint beam. Moreover, the lower end of the upper climbing stair frame forming the ascending staircase facing upward is supported by the second middle and horizontal member.

[Effect]

It has first and second side columns and a middle column, and first and second middle and horizontal members are installed at different heights between these columns, and the first and second side columns are constructed at different heights. The first and second sections are the same height as the middle and horizontal members, respectively.
The upper and lower climbing stair frames and the folding frame are supported on the first and second middle and horizontal members and the first and second back and horizontal members. let Therefore, by simply providing the first and second middle and horizontal members and the first and second back and horizontal members for each floor, it is possible to form folding stairs by stacking them upward and downward. Construction efficiency can be improved by a factor of 11. Moreover, since the stairway in which the folding staircase is placed can be extended without expanding the site area, the site can be used effectively.

〔Example〕

Hereinafter, the structure of the stairwell of the present invention is adjacent to the outer wall part B of the main body A of the house forming a three-story apartment building as shown in FIG.
A case in which the method is adopted for providing a folding staircase 2 shown by a broken line for the house body A will be explained based on the drawings as an example.

In FIG. 2, the stairway S has a side wall 3.3 and a back wall 4, and first walls erected at intermediate positions of the side wall 3.3.
, a second side post 5.6, and a middle post 7 erected between the first and second side posts 5.6. Also, between the first and second side pillars 5 and the middle pillar 7, there are first and second middle and horizontal members 9, respectively.
10 is constructed, and the side wall 3 is provided with first and second dorsal and transverse members 11 and 12.

In addition, in the staircase room S, a connecting beam 13 connecting the first middle and horizontal members 9 and the first back and horizontal members 11, a joint beam 13 connecting the first middle and horizontal members 10 and the second back and horizontal members 11, The upper and lower climbing stair frames 14 and 15 and the folding frame 16 are supported by the horizontal members 12.

The side wall 3 has front pillars 19 and 19 vertically erected at both ends of an opening that is perpendicular to the outer wall portion B and is open in the outer wall portion B, and is horizontally connected to the outer wall portion B outward from the house. It has rear pillars 21, 21 which are connected via beams 20.20 extending orthogonally to each other and are vertically erected.

The beam material 20 is a lattice beam in which grooves of channel steels 90 and 91 are arranged facing each other, and a lattice is passed between the channel steels 90 and 91, and the front column 19 and the rear column are connected to each other. Both ends are fixed to each side facing 21. side wall 3
The horizontal web E of the channel steel 90 on the beam 2o has its upper surface approximately at the same height as the second and third floors of the house main body A, respectively, and the upper and lower beams 2OA , 20B is installed.

Further, the front pillar 19.19 and the rear pillar 20.20 are made of square steel pipes, and are through pillars that connect the base part F1 of the staircase room S and the roof G1. The base portion F1 and the roof G1 are formed to extend from the base portion F1 roof G of the house main body A in the direction of the staircase S as shown in FIG.

The back wall 4 connects the rear end of the side wall 3.3 and connects the rear columns 21.21 with a beam 22. The beam 22 is a lattice beam having substantially the same configuration as the beam 20, and is disposed above and below the beam 20 at the same height. Also, between the front pillars 19 and 19, there is a beam 31 having the same structure as the beam 20.
will be constructed above and below. The back wall 4 also includes a back wall panel 23.

In this example, the back wall panel 23 includes an upper frame member 24, a lower frame member 25, and a side frame member 26, which are made of channel steel, as shown in detail in FIG.
26 are welded with their grooves facing each other, and face materials 27A and 27B are attached to both sides of a rectangular framework. Further, between the upper frame member 24 and the lower frame member 25, a reinforcing member 29 made of channel steel is installed approximately at the center thereof. Back wall panel 23.
23 is connected and fixed between the lower beam 22A and the base F1 and between the upper beam 22B and the lower beam 22A using appropriate fittings.

Further, the first and second side columns 5.6 are connected to the side wall 3.3.
In this embodiment, a vertical beam is provided between the base portion F1 and the lower beam 2OB, and between the upper beam 2OA and the lower beam 2OB. Partial columns 5A made of square steel pipes installed on each side
, 5B. Further, the middle pillar 7 is connected to the first
, is a square steel pipe that stands vertically at an intermediate position of the second side column 5.6, and has its upper end positioned diagonally below the beam member 20. The first middle horizontal member 9 is provided between the first side post 5 and the center post 7, and the second middle horizontal member is provided between the second side post 6 and the middle post 7. 10 will be constructed respectively.

As shown in FIG. 4, the first intermediate and horizontal member 9 is a channel steel with a U-shaped cross section, in which flanges HS I are provided horizontally on the upper and lower sides of a vertical web, and rectangular plates 30 are provided at both ends of the channel steel. is welded. The first middle horizontal member 9 has its groove J connected to the back wall 4.
The plate material 30 is disposed facing toward the outer wall portion B and parallel to the outer wall portion B, and is fixed by bolting the plate material 30 to the first side column 5 and the middle column 7. Note that the first intermediate and horizontal members 9 are attached to the lower first intermediate and horizontal members 9A that are attached slightly below the middle of the base portion F1 and the beam members 20, and to the upper part of the beam members 20. It consists of the upper first middle and horizontal members 9B.

The second middle and horizontal frame member 10 has approximately the same configuration as the first middle and horizontal frame member 9, and has a web and upper and lower flanges H1, and has a groove J thereof directed toward the house main body A. The upper and lower second intermediate and horizontal members 10B1 and lower second intermediate and horizontal members 10A are arranged at higher positions than the upper and lower first intermediate and horizontal members 9B and 9A, respectively. Both ends of the second intermediate and horizontal members 10B and IOA are bolted and fixed to the second side column 6 and the center column 7, respectively.

The first and second dorsal and transverse members 11.12 are channel steel having a U-shaped cross section with L horizontally provided on the upper and lower flanges of vertical webs, and the webs are , is formed between the webs of the second intermediate and horizontal members 9.10, and its length is approximately equal to that of the first and second intermediate and horizontal members 9.10. In addition, the first and second dorsal and transverse members 11.12 have their grooves M facing the house body A, and their upper surfaces facing the first and second flanges.
Align it with the upper surface of the upper flange H of the middle horizontal member 9.10,
That is, the height is the same as that of the first and second middle and horizontal members 9.10, and the third
As shown in the figure, a facing material 27 is attached to the back wall panel 23 of the back wall 4.
It is fixed by being bolted to the side frame members 26, 26 and reinforcing member 29 with A in between. Therefore, the first and second dorsal and transverse members 11.12 are the upper first and second middle and transverse members 9B.
, the first and second dorsal and horizontal members 11B, 1 at the same height as the IOB.
2B, the first and second intermediate and horizontal members 9A below, and the first and second back and horizontal members 11A and 12B at the same height as the IOA.

A first intermediate horizontal member 9 and a first intermediate horizontal member 9 of the same height as the first intermediate horizontal member 9.
In this example, the joint beam 13 that connects the back and transverse members 10 is formed of a short square steel pipe, and connects each upper flange H of the first middle and transverse members 9 and the first back and transverse members 10. , and the joint beam 13 consists of an outer joint beam 13A and an inner joint beam 13B, which are fixed in parallel to each other near both ends of the upper flange H,.

In this example, a joint beam 1 having the same configuration as the joint beam 13 is also provided between the second middle and horizontal members 10 and the second back and horizontal members 12.
7.17 will be erected.

The connecting beam 13 supports the upper end of the lower climbing stair frame 14.

The lower ascending staircase frame 14 forms an ascending staircase P from the lower floor of the folding staircase 2, as shown in FIGS. attached,
It is a block body in which a staircase part 34 is provided above the back siding and between the side panels 33 and 33, in which a sill board and a stepped board are provided at an appropriate step pitch. Further, the lower end of the lower climbing stair frame 14 is placed and fixed on the base part F1 or the downstairs floor, and the upper end is attached to the connecting beam 13 by an engaging piece 35 projecting horizontally from the upper end of the uppermost stub board. It is fixed by being placed and bolted.

Further, the connecting beam 13 cooperates with the second middle and horizontal members 10 and the second back and horizontal members 11 of the same height to form the bending frame 16.
support.

The bending frame 16 forms the bending part Q of the bending staircase 2, and is placed on the connecting beam 13 continuously to the end edge of the engagement piece 35 of the lower climbing stair frame 14. , comprising a rectangular lower plate 40 to which is bolted.

The folding frame body 16 has a substantially triangular stepped portion on the lower plate 40 extending horizontally from the upper end of the recessed portion 16A1 and the recessed portion 16A that extends obliquely from the middle pillar 7 to the rear pillar 21. 16
B, a substantially triangular step portion 16D1 extending horizontally from the upper end of the recessed portion 16C1 rising from the edge of the stepped portion 16B perpendicular to the house body A; an edge facing the rear pillar 21 of the 16D; The insertion portion 16E rising from the insertion portion 1
It is a block body integrally formed with a triangular step 16F extending horizontally from the upper end of the block 6E. Further, a horizontally protruding fixing piece 41 is provided at the lower end edge of the stepped portion 16F of the folding frame 16, so that the folding frame 16 is connected to the second middle and horizontal member 10. The joint beams 17 and 17 are bolted to the joint beams 17 and 17.
7.

The second middle horizontal member 10 is connected to the upper climbing stair frame 15.
Support the bottom edge of.

The upper climbing stair frame 15 forms a climbing stair R facing upward, and has substantially the same structure as the lower climbing stair frame 14, and is a block body provided with an engaging piece 43 at the upper end. It is. Its upper end is fixed by bolting the locking piece 43 that locks onto the upper surface of the web E of the channel steel 90 on the beam member 31. As shown in FIG. 5, its lower end is arranged so that a hanging piece 44 that hangs downward from the sash plate at the lowest part of the climbing stair frame 15 is aligned with the side surface of the step 16F of the bent frame 16. By bolting to the connecting beams 17 and 17, it is supported by the second intermediate and horizontal member 10 via the connecting beams 17.

In addition, the upper and lower climbing stair frames 14 and 15, and the folding frame 16
A handrail T is attached as appropriate.

〔Effect of the invention〕

The structure of the stairwell of the present invention, as shown in the diagonal top, includes upper and lower climbing stair frames forming a folding staircase, and a first frame which fixes the folding frame to the first and second side pillars and the middle pillar. 11 It is attached to the second middle and horizontal members and the first and second back and horizontal members fixed to the back wall.

Therefore, multiple bending staircases can be supported by two side pillars and a middle pillar, making it possible to easily form staircases in high-rise houses with three or more floors, greatly increasing construction efficiency. It can be improved.

[Brief explanation of drawings]

FIG. 1 is a perspective view schematically showing a house in which the stairwell structure of the present invention is adopted, and FIG. 2 is a perspective view showing an embodiment of the present invention.
Fig. 3 is a perspective view illustrating the back wall panel, Fig. 4 is an exploded perspective view showing the attachment of the lower climbing stair frame and the folding frame, Fig. 5 is a sectional view of this embodiment, and Fig. 6 5 is a cross-sectional view taken along the line X--X in FIG. 5, FIG. 7 is a cross-sectional view taken along the Y-Y line in FIG. 5, and FIG. 8 is a perspective view showing the prior art. 2-One-fold staircase, 3-1. - side wall, 4 - back wall, 5
-First side pillar, 6-Second side pillar, 7-1 Middle pillar, 9-
・-・First medium-horizontal structural material, 10 to second medium-horizontal structural material, 11
．． , -11. 1st back and transverse member, 12-second back and transverse member, 13, , - joint beam, 14-1 lower climbing stair frame,
15-, upper climbing stair frame, 16-, folding frame,
A-1 main body of the house, B-outer wall portion, S-, -, staircase room. Patent applicant National Housing Industry Co., Ltd. Agent Patent attorney Tadashi Naemura f$351 Figure 5 Figure 6 Figure 7 Figure 8

Claims (1)

[Claims] 1. A stairwell structure that is adjacent to the outer wall of a multi-story house and has a folding staircase for the main body of the house, and the stairwell has a side wall that is orthogonal to the outer wall, and a back wall that connects the rear end of the side wall. and a first side pillar and a second side pillar that are erected to face an intermediate position of the side wall, and a middle pillar that is erected at an intermediate position between the first and second side pillars. and a first mid-horizontal frame installed between the first side column and the middle pillar, and a first back-lateral frame provided on the back wall and having the same height as the first middle and horizontal frame. The joint beam connecting the timbers supports the upper end of the lower climbing stair frame that forms the climbing staircase from the lower floor of the bending staircase, while connecting the second side pillar and the middle pillar and connecting the first middle pillar. A second middle horizontal member located higher than the horizontal member and a second back horizontal member provided on the back wall and having the same height as the second middle horizontal member provide a folding structure for forming a bend in the staircase. The bent frame body is supported in cooperation with the joint beam, and the second
A stairway structure in which the lower end of an upper climbing stair frame forming an upward stairway is supported by medium and horizontal members.