JPH073108B2 - Staircase structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention can be formed, for example, by sequentially stacking bent stairs provided on the outer wall part of a main body of a high-rise building in an upward direction. The present invention relates to a staircase structure 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-storey multi-story house, a U-shaped bent staircase is often provided to connect the corridors on the upper and lower floors in order to effectively use the site.

Conventionally, such a stairway has a support pole a as shown in FIG.
The landing b was supported by the pedestal b, and the landing c was formed, and the landing c and the upper and lower floors were connected by the stairs d and d.

[Problems to be Solved by the Invention]

However, in such a structure in which the stairs part d is supported by the pedestal b, for example, in order to add a bent staircase leading to the third floor, the pedestal must be newly launched,
This requires time and labor for installation, resulting in poor efficiency of installation work and reduced productivity.

The present invention is based on the fact that the upper and lower climbing staircase frames and the folding frame members are supported by the middle lateral cross members and the lateral cross members provided on the two side pillars, the middle pillar, and the back wall. It is an object of the present invention to provide a staircase structure capable of solving the above-mentioned problems by sequentially installing a plurality of bent stairs upward.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the structure of the staircase of the present invention is a structure of a staircase that is provided adjacent to an outer wall portion of a multi-storey house main body and provides a bent staircase for the main body of the house. A first side pillar and a second side pillar, which have a side wall orthogonal to the part and a back wall that joins the rear end of the side wall and are erected to face the middle position of the side wall, and the first and second side pillars. A first middle lateral cross member installed between the first side pillar and the middle pillar, and a middle pillar standing upright at an intermediate position between the side pillars; By means of a connecting beam that connects the first horizontal cross member with the same height as the middle horizontal cross member, the upper end of the lower climbing stair frame body that forms the climbing staircase from the downstairs of the folding staircase is supported, while the second The second, which connects the side pillar and the middle pillar, and is located higher than the first middle and horizontal members
The folding frame body for forming the bent portion of the stairs is formed by the middle cross member and the second back cross member provided on the back wall and having the same height as the second middle cross member, together with the joint beam. It works and supports, and also supports the lower end of the upper climbing staircase frame body which forms the climbing staircase facing the upper floor by the second middle and horizontal members.

[Action]

The first and second side pillars and the middle pillar are provided, and the first and second middle and horizontal members are erected at different heights between the pillars, and the first and second pillars are provided. First and second back horizontal cross members, which have the same height as the middle horizontal cross members, are fixed to the back wall, and the first and second mid horizontal cross members, and the first and second back horizontal cross members are mounted on the back wall. , Support the lower climbing staircase frame and the folding frame. Therefore, for each floor, the first,
By only providing the second middle horizontal member and the first and second back horizontal members respectively, the bent stairs can be formed above and below and the construction efficiency can be greatly improved. . In addition, the stair room in which the bent stairs are arranged can be expanded without increasing the site area, so that the site can be effectively used.

〔Example〕

Hereinafter, the structure of the staircase of the present invention is adjacent to the outer wall portion B of the main body A of the house constituting a three-story apartment house as shown in FIG.
A case adopted in providing the bent stairs 2 shown by the broken line for the house main body A will be described as an example with reference to the drawings.

In FIG. 2, the staircase S has side walls 3 and 3 and a back wall 4, and first and second side columns 5 and 6 which are erected at intermediate positions of the side walls 3 and 3. , A middle pillar 7 standing upright between the first and second side pillars 5 and 6. Between the first and second side pillars 5 and 6 and the middle pillar 7, first and second middle horizontal members 9 and 10 are installed, respectively, and the side wall 4 is provided with a first First and second back transverse members 11 and 12 are provided.

Further, in the staircase S, a connecting beam 13 that connects the first middle horizontal member 9 and the first back horizontal member 11 and the second middle horizontal member
Climbing staircase frame 1 up and down by 10 and the second back horizontal member 12
It supports 4, 15 and the bending frame 16.

The side walls 3 are perpendicular to the outer wall portion B, and are vertically installed on both ends of the opening D opened at the outer wall portion B, and are vertically installed on the front pillars 19, 19 and are located outside the house and are parallel to the outer wall portion B. It has rear columns 21 and 21 which are connected to each other through beam members 20 and 20 which extend at right angles and which are vertically erected.

The beam member 20 is a lattice beam in which the grooves of the channel steels 90 and 91 are opposed to each other and a lattice is bridged between the channel steels 90 and 91. Both sides are fixed to each side facing each other. The side wall 3 is the beam member 20.
The horizontal web E of the channel steel 90 on the top has its upper surface substantially above the second and third floors of the main body A of the house,
The lower beams 20A and 20B are attached.

The front pillars 19 and 19 and the rear pillars 21 and 21 are through pillars made of square steel pipes and connecting the base portion F1 of the staircase S and the roof G1. The base portion F1 and the roof G1 are formed by projecting from the base portion F and the roof G of the main body A of the house in the direction of the staircase S as shown in FIG.

The back wall 4 joins the side walls 3 and the rear ends of the back walls 4, and connects the rear columns 21 and 21 with beam members 22. The beam 22
Is a lattice beam having substantially the same configuration as the beam member 20.
It has the same height as 20, and is arranged above and below. Also, the front pillar 19,
A beam member 31 having the same structure as the beam member 20 is also installed between 19 and above and below. The back wall 4 also comprises a back wall panel 23. The back wall panel
In this example, as shown in detail in FIG. 3, the reference numeral 23 is a rectangular frame formed by welding an upper frame member 24, a lower frame member 25 and side frame members 26, 26 made of channel steel with their groove portions facing each other. Face materials 27A, 2 on both sides of the frame
7B is attached. Further, between the upper frame member 24 and the lower frame member 25, a reinforcing member 29 made of channel steel is installed at substantially the center thereof.
The back wall panels 23, 23 are composed of the lower beam member 22B and the base portion F1.
And the upper beam member 22A and the lower beam member 22B are continuously connected and fixed by using an appropriate mounting bracket.

Further, the first and second side pillars 5 and 6 have the side walls 3 and 3, respectively.
While standing upright at the intermediate position of, in the present embodiment, vertically between the base portion F1 and the lower beam member 20B and between the upper beam member 20A and the lower beam member 20B. Is formed by partial columns 5A and 5B made of square steel pipes, which are respectively attached to and coaxially with each other. The middle pillar 7 is a square steel pipe that stands vertically at an intermediate position between the first and second side pillars 5 and 6, and has its upper end diagonally below the upper beam member 20A. And between the first side pillar 5 and the middle pillar 7, the first
The middle transverse member 9 is installed, and the second middle transverse member 10 is installed between the second side pillar 6 and the middle pillar 7, respectively.

As shown in FIG. 4, the first middle transverse member 9 is a channel steel having U-shaped cross sections in which flanges H and I are horizontally provided above and below a vertical web, and rectangular plate members are provided at both ends thereof. 30 is welded. The first middle-and-horizontal bridge member 9 is provided with the groove portion J facing the back wall 4 and in parallel with the outer wall portion B, and at the same time, the plate member.
30 is fixed to the first side pillar 5 and the middle pillar 7 by bolting. The first middle horizontal member 9A is attached slightly below the middle of the base portion F1 and the beam member 20, and is attached above the beam member 20. First on top
It consists of the middle and horizontal material 9B.

The second middle transverse member 10 has substantially the same structure as the first middle transverse member 9, has a web and upper and lower flanges H and I, and has its groove portion J directed toward the house main body A and The second middle and horizontal members above and below the first and middle first and second members 9B and 9A, respectively.
10B and a lower second middle transverse member 10A are arranged, and upper and lower second middle transverse members 10B and 10A are bolted to the second side pillar 6 and the middle pillar 7, respectively, at both ends thereof. It is stopped and fixed.

The first and second back transverse members 11 and 12 are channel steels having U-shaped cross-sections in which flanges K and L are horizontally provided above and below the vertical web, and the webs are the above-mentioned first and second webs. , Narrower than the webs of the second middle and horizontal members 9, 10 and the length thereof is the same as that of the first, second
It is formed substantially the same as the middle and horizontal members 9, 10. The first,
The second back transverse members 11, 12 are aligned with the groove portion M toward the house main body A and the upper surface of the upper flange K is aligned with the upper surface of the upper flange H of the first and second middle transverse members 9, 10. That is, that is, at the same height as the first and second middle / horizontal bridge members 9 and 10, and as shown in FIG. 3, on the back wall panel 23 of the back wall 4 with the face member 27A interposed therebetween, the side frame member. It is fixed by bolting to 26, 26 and the reinforcing material 29. Therefore, the first and second back horizontal members 11 and 12 are the same as the above first and second middle horizontal members 9B and 10B, and the first and second back horizontal members 11B and 12B. And the first and second middle and horizontal members 9 below
Includes first and second dorsal cross members 11A, 12A below the same height as A, 10A.

The first middle horizontal member 9 and the first middle horizontal member 9 having the same height
In the present example, the connecting beam 13 that connects the back horizontal member 11 of the present invention is formed of a short square steel pipe, and each upper flange H of the first middle horizontal member 9 and the first horizontal member 11 , K is orthogonally fixed to the upper surfaces of the upper flanges H, K, and the joint beam 13 is composed of an outer joint beam 13A and an inner joint beam 13B fixed in parallel to the vicinity of both ends of the upper flanges H, K.

In this example, joint beams 17 and 17 having the same structure as the joint beam 13 are also installed between the second middle horizontal member 10 and the second back horizontal member 12.

The joint beam 13 supports the upper end of the lower climbing staircase frame body 14.

As shown in FIGS. 4 to 5, the lower climbing staircase frame body 14 forms a climbing staircase P from the downstairs of the folding staircase 2 and bridges the lower parts of the side plates 33, 33 to attach to the back siding board. This is a block body in which a step portion 34 in which a shingling plate and a step plate are provided at an appropriate stair pitch is arranged above the back siding plate and between the side plates 33, 33. Further, the lower end of the climbing staircase frame body 14 below is the base portion F1.
Alternatively, it is mounted and fixed on the lower floor, and the upper end is fixed by mounting and bolting an engaging piece 35 that horizontally projects from the upper end of the uppermost shroud plate to the joint beam 13.

Further, the joint beam 13 supports the bending frame body 16 in cooperation with the second middle horizontal member 10 and the second back horizontal member 12 having the same height.

The bent frame body 16 forms a bent portion Q of the bent staircase 2, and the lower climbing staircase frame body 14 is provided on the joint beam 13.
It has a rectangular lower plate 40 which is continuously placed and bolted on the edge of the engaging piece 35.

The folding frame body 16 extends on the lower plate 40 obliquely from the middle pillar 7 to the rear pillar 21 and rises up diagonally to rise up, and the rising portion 16A.
A substantially triangular step 16B extending horizontally from the upper end, and a recess 16C rising from the edge of the step 16B orthogonal to the main body A of the house,
A substantially triangular step 1 that extends horizontally from the upper end of the recess 16C.
6D, a barbed portion 16E rising from the edge facing the rear pillar 21 of the 16D
And a block body integrally forming a triangular step portion 16F extending horizontally from the upper end of the indented portion 16E. Further, a fixing piece 41 that horizontally protrudes is provided below the edge of the step portion 16F of the bending frame body 16, whereby the bending frame body 16 and the second middle transverse member 10 and It is supported via the joint beam 17 by being bolted to the two transverse members 12 and the joint beams 17, 17.

The second middle horizontal member 10 supports the lower end of the upper climbing staircase frame body 15.

The upper climbing staircase frame body 15 forms a climbing staircase R that faces upwards and has the same structure as the lower climbing staircase frame body 14 and has a locking piece 43 at the upper end. Is. The upper end thereof is fixed by bolting the engaging piece 43 that is engaged with the upper surface of the web E of the channel steel 90 on the beam member 31. As shown in FIG. 5, the lower end thereof is a hanging piece 44 which is the lowermost part of the upper climbing staircase frame body 15 and which hangs downward from the scooping plate.
Along the side surface of the stepped portion 16F of the bending frame 16 and by bolting to the joint beams 17 and 17, the joint beam
It is supported by the second middle and horizontal members 10 through 17.

A handrail T is appropriately attached to the upper and lower climbing staircase frames 14 and 15 and the folding frame body 16.

〔The invention's effect〕

As described above, the structure of the staircase according to the present invention is such that the upper staircase frame body and the lower staircase frame body forming the bent staircase are fixed to the first and second side pillars and the middle pillar. It is attached to the first and second middle transverse members and the first and second rear transverse members fixed to the back wall.
Therefore, a plurality of bent stairs can be supported by the two side pillars and the middle pillar, respectively, and it is possible to easily form a staircase in a high-rise house with three or more floors, which greatly increases the construction efficiency. Can improve.

[Brief description of drawings]

1 is a perspective view schematically showing a house in which the staircase 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 a back wall panel, FIG. 4 is an exploded perspective view showing the mounting of a lower climbing staircase frame and a folding frame body, FIG. 5 is a sectional view of this embodiment, and FIG. 5 is a sectional view taken along line XX in FIG. 5, FIG. 7 is a sectional view taken along line YY in FIG. 5, and FIG. 8 is a perspective view showing a conventional technique. 2 ... Bend stairs, 3 ... Side wall, 4 ... Back wall, 5 ... First side pillar, 6 ... Second side pillar, 7 ... Middle pillar, 9 ... First
Middle horizontal crossing material, 10 …… second middle horizontal crossing material, 11 …… first back horizontal crossing material, 12 …… second back horizontal crossing material, 13 …… joint beam, 14 …… bottom Climbing staircase frame, 15 …… Climbing staircase frame, 16 …… Bending frame, A …… Main body, B …… Outer wall part, S …… Staircase.

Claims (1)

[Claims] 1. A structure of a staircase which is provided adjacent to an outer wall part of a multi-story house main body to provide a bent staircase for the main body of the house, wherein the staircase has a side wall orthogonal to the outer wall part and a side wall rear end. A first side pillar and a second side pillar that have a back wall to be joined and are erected so as to be opposed to an intermediate position of the side wall, and an erected at an intermediate position between the first and second side pillars. A first middle horizontal cross member installed between the first side post and the middle post and the first wall provided on the back wall and having the same height as the first middle horizontal cross member. The connecting beam that connects the horizontal material of the back supports the upper end of the lower climbing stair frame that forms the climbing staircase from the downstairs, while connecting the second side pillar and the middle pillar. The second middle horizontal member which is higher than the first middle horizontal member and the second middle horizontal member which is provided on the back wall
The second back horizontal member having the same height as the middle horizontal member supports the bending frame body for forming the bent portion of the stairs in cooperation with the joint beam, and further, the second middle horizontal member The structure of the staircase that supports the lower end of the climbing staircase frame that forms the climbing staircase that goes up to the floor.