JPH04309650A - Structure of staircase - Google Patents
Structure of staircaseInfo
- Publication number
- JPH04309650A JPH04309650A JP3103914A JP10391491A JPH04309650A JP H04309650 A JPH04309650 A JP H04309650A JP 3103914 A JP3103914 A JP 3103914A JP 10391491 A JP10391491 A JP 10391491A JP H04309650 A JPH04309650 A JP H04309650A
- Authority
- JP
- Japan
- Prior art keywords
- walls
- stairs
- construction
- sides
- staircase
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010276 construction Methods 0.000 claims abstract description 30
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 16
- 239000010959 steel Substances 0.000 claims abstract description 16
- 239000004567 concrete Substances 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 abstract description 4
- 230000002093 peripheral effect Effects 0.000 abstract description 3
- 239000011150 reinforced concrete Substances 0.000 description 14
- 238000009415 formwork Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 229910052918 calcium silicate Inorganic materials 0.000 description 2
- 239000000378 calcium silicate Substances 0.000 description 2
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009970 fire resistant effect Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000003197 gene knockdown Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Landscapes
- Steps, Ramps, And Handrails (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、ＲＣ造（鉄筋コンクリ
ート造）の建物における階段室の構造に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the structure of a staircase in an RC (reinforced concrete) building.
【０００２】0002
【従来の技術】従来、コンクリートの現場打ちによるＲ
Ｃ造建物における階段室は、その四周壁、踊り場、段床
の全てがコンクリートの現場打ちによるＲＣ造とされて
いたので、次のような欠点があった。[Prior art] Conventionally, R by pouring concrete on-site
The stairwell in the C-frame building had the following drawbacks because its four walls, landing, and step floor were all made of cast-in-place concrete.
【０００３】■階段室の施工にあたっては、狭い空間の
中で型枠、鉄筋及びコンクリート打設の作業をしなけれ
ばならない。■段床が傾斜しているため、段床の型枠の
組立及び支保工が複雑である。■型枠等の仮設材が多く
必要である。■以上■〜■の理由により階段室がＲＣ造
建物を施工する際の工程上のネックとなる。[0003] When constructing a staircase, it is necessary to construct formwork, reinforcing bars, and pour concrete in a narrow space. ■As the berm is sloped, assembly of the formwork and shoring for the berm are complicated. ■Many temporary materials such as formwork are required. ■For the reasons stated above, the stairwell becomes a bottleneck in the process of constructing an RC building.
【０００４】ところで、ＲＣ造建物における階段室の四
周壁として要求される性能について考察すると、踊り場
や段床を支持する壁には、耐火性能に加えて、構造部材
としての耐力を要求されるが、壁の一部を踊り場や段床
から切り離し、これらを支持しないようにした場合には
、この部分の壁については、構造部材としての性能が不
要になり、耐火性能のみ満足させればよく、ＲＣ造とす
る必要がないことがわかる。[0004] By the way, when considering the performance required for the four peripheral walls of a staircase in an RC building, the walls that support landings and steps are required to have strength as a structural member in addition to fire resistance. If a part of the wall is separated from the landing or step and is not supported, this part of the wall no longer needs to function as a structural member and only needs to satisfy fire resistance. It can be seen that there is no need to use RC construction.
【０００５】[0005]
【発明が解決しようとする課題】本発明は、上記の点に
留意してなされたものであって、その目的とするところ
は、施工の省力化を可能にした、しかも非常に低コスト
で施工できる階段室の構造を提供することにある。[Problems to be Solved by the Invention] The present invention has been made with the above points in mind, and its purpose is to make it possible to save labor in construction and to achieve construction at a very low cost. Our goal is to provide a structure for a stairwell that is possible.
【０００６】[0006]
【課題を解決するための手段】上記の目的を達成するた
めに、本発明では、階段の幅方向両側に位置する壁を乾
式工法による耐火構造壁とし、階段の長さ方向両側に位
置する壁と該壁に支持された踊り場をコンクリートの現
場打ちによるＲＣ造とし、鋼製ささら桁と該鋼製ささら
桁によって両側部を支持された鋼製段床とか成るＳ造階
段を前記踊り場間に架設している。[Means for Solving the Problems] In order to achieve the above object, in the present invention, the walls located on both sides in the width direction of the stairs are made of fireproof construction walls using a dry construction method, and the walls located on both sides in the length direction of the stairs are and the landing supported by said wall is made of RC construction by casting concrete in-situ, and an S-construction staircase consisting of steel stringers and steel steps supported on both sides by the steel stringers is erected between said landings. are doing.
【０００７】[0007]
【作用】上記の構成によれば、階段室の四周壁のうち、
階段の長さ方向両側に位置するＲＣ造の壁が、構造部材
としての耐力を負担する。[Operation] According to the above configuration, among the four peripheral walls of the stairwell,
The RC walls located on both sides of the staircase in the length direction bear the load as structural members.
【０００８】階段室の幅方向両側の壁は、踊り場や段床
を支持していないので、構造部材として性能を要求され
ない。従って、この壁として、例えば、ＡＬＣ版、軽鉄
下地と珪酸カルシウム板の組合せといった乾式工法によ
る耐火構造壁を採用できるのであり、施工性が良い[0008] The walls on both sides of the staircase in the width direction do not support a landing or a step floor, so they are not required to have high performance as structural members. Therefore, for this wall, it is possible to adopt a fire-resistant structural wall using a dry construction method, such as an ALC plate, a combination of a light iron base and a calcium silicate board, and it is easy to construct.
【０
００９】また、踊り場もＲＣ造としたので、Ｓ造階段の
形状がシンプルなものとなり、Ｓ造階段を安価なものと
することができる。0
Furthermore, since the landing is also made of RC construction, the shape of the S-made stairs is simple, and the S-made stairs can be made inexpensive.
【００１０】0010
【実施例】図１及び図２は、コンクリートの現場打ちに
よるＲＣ造建物における階段室の構造を示す。階段室の
四周壁のうち、階段の幅方向両側に位置する壁１，１は
乾式工法による耐火構造壁とされ、階段の長さ方向両側
に位置する壁２，２はコンクリートの現場打ちによるＲ
Ｃ造とされている。３ａ，３ｂは前記壁２，２に片持ち
支持された踊り場であり、コンクリートの現場打ちによ
るＲＣ造とされている。[Embodiment] Figures 1 and 2 show the structure of a staircase in an RC building made of cast-in-place concrete. Of the four surrounding walls of the staircase, walls 1 and 1 located on both sides in the width direction of the stairs are made of fireproof construction walls using the dry construction method, and walls 2 and 2 located on both sides of the length of the stairs are made of cast-in-place concrete with R.
It is said to be C-built. 3a and 3b are landings that are cantilever-supported by the walls 2, 2, and are made of RC construction made of cast-in-place concrete.
【００１１】４，４は前記踊り場３ａ，３ｂ間に架設さ
れた折返し型のＳ造（鉄骨造）階段であり、夫々、一対
の鋼製ささら桁４ａ，４ａと該ささら桁４ａ，４ａによ
って両側部を支持された鋼製段床４ｂとから構成されて
いる。５は階段室中央側のささら桁４ａ，４ａにビス等
で固着された手摺り支柱、６は手摺りである。[0011] Reference numerals 4 and 4 designate a folded type S-structure (steel-framed) staircase constructed between the landings 3a and 3b, each of which has a pair of steel stringers 4a and 4a, and a pair of steel stringers 4a and 4a. It is composed of a steel step bed 4b supported at the bottom. Reference numeral 5 designates a handrail post fixed to stringers 4a, 4a on the central side of the staircase with screws, and reference numeral 6 designates a handrail.
【００１２】前記壁１（乾式工法による耐火構造壁）と
して、この実施例では、軽鉄下地１ａを組み、これに珪
酸カルシウム板１ｂ，１ｂを貼着しているが、ＡＬＣ板
等を使用してもよい。In this embodiment, a light iron base 1a is constructed and calcium silicate plates 1b, 1b are attached to this as the wall 1 (a fireproof structure wall made by dry construction method), but an ALC plate or the like is used. You can.
【００１３】前記踊り場３ａ，３ｂは、前記壁２，２と
同時にコンクリートを打設することによって構成されて
いるが、コンクリートの後打ちとし、壁２，２に打ち継
いで構成してもよい。The landings 3a, 3b are constructed by pouring concrete at the same time as the walls 2, 2, but they may also be constructed by pouring concrete afterwards and joining the walls 2, 2.
【００１４】前記Ｓ造階段４としては、厚鋼板製のもの
でもよく、薄鋼板製のものであってもよい。また、前記
Ｓ造階段４としては、予め、工場生産されたものを用い
てもよいが、この実施例では、ノックダウン方式とされ
ている。The S-made staircase 4 may be made of a thick steel plate or a thin steel plate. Further, as the S-shaped stairs 4, those manufactured in advance in a factory may be used, but in this embodiment, they are of a knock-down type.
【００１５】具体的には、工場生産された薄鋼板製の中
空状ささら桁と薄鋼板製の段床構成部品とを建築現場の
敷地内に搬入し、現地で、複数個の段床構成部品同士を
ビス等で連結して前記段床４ｂを構成すると共に、当該
段床４ｂの両端部を両側の中空状ささら桁にビス等で連
結することによって構成されている。Specifically, hollow stringers made of thin steel plates and berm components made of thin steel plates produced in a factory are transported to the premises of a construction site, and a plurality of bead constituent parts are assembled on site. The tiered floor 4b is constructed by connecting them with screws or the like, and the both ends of the tiered floor 4b are connected to hollow stringers on both sides using screws or the like.
【００１６】[0016]
【発明の効果】本発明は、上述した構成よりなるから、
次の効果を奏し得るのである。■階段の長さ方向両側に
位置する壁と踊り場だけを現場打ちＲＣ造とし、階段室
の幅方向両側の壁を乾式工法による耐火構造壁とし、踊
り場間にＳ造階段を架設した構造であるから、狭い空間
内での型枠工事、鉄筋工事、支保工の作業量が激減する
。■段床のための複雑な形状の型枠、鉄筋工事が省略さ
れる。■型枠や支保工等の仮設材が減少する。■上記■
〜■の結果、施工の省力化が達成され、工程短縮に寄与
する。■踊り場をＲＣ造としたので、Ｓ造階段の形状が
シンプルなものとなり、Ｓ造階段を安価なものとするこ
とができる。即ち、従来のＳ造階段のように、踊り場と
段床部分とが一体となった鋼製階段では、形状が複雑な
ため、高価なものとなるが、本発明によれば、このよう
な欠点が回避されるのである。■上記■〜■の結果、低
コストに施工できる。[Effects of the Invention] Since the present invention has the above-mentioned configuration,
The following effects can be achieved. ■Only the walls and landing on both sides of the staircase in the length direction are made of cast-in-place RC construction, the walls on both sides of the width of the staircase are made of fire-resistant construction walls using dry construction method, and the S-construction staircase is constructed between the landings. As a result, the amount of work required for formwork, reinforcing steel, and shoring work in narrow spaces is drastically reduced. ■The complicated formwork and reinforcing steel work for the stepped floor can be omitted. ■ Temporary construction materials such as formwork and shoring will be reduced. ■Above■
As a result of ~■, labor saving in construction is achieved and contributes to shortening the process. ■Since the landing is made of RC construction, the shape of the S-made stairs is simple, and the S-made stairs can be made inexpensive. In other words, steel stairs in which the landing and the step floor are integrated, such as the conventional S-shaped stairs, have a complicated shape and are expensive, but the present invention eliminates these drawbacks. is avoided. ■As a result of the above ■~■, construction can be done at low cost.
【図１】本発明に係る階段室の構造を示す平面図である
。FIG. 1 is a plan view showing the structure of a staircase according to the present invention.
【図２】本発明に係る階段室の構造を示す縦断側面図で
ある。FIG. 2 is a longitudinal side view showing the structure of the staircase according to the present invention.
１ 壁（乾式工法による耐火構造壁）２ 壁（ＲＣ
造）
３ａ 踊り場（ＲＣ造）
４ Ｓ造階段1 Wall (fireproof structural wall using dry construction method) 2 Wall (RC
3a Landing (RC construction) 4 S construction stairs
Claims (1)
工法による耐火構造壁とし、階段の長さ方向両側に位置
する壁と該壁に支持された踊り場をコンクリートの現場
打ちによるＲＣ造とし、鋼製ささら桁と該鋼製ささら桁
によって両側部を支持された鋼製段床とか成るＳ造階段
を前記踊り場間に架設してあることを特徴とする階段室
の構造。Claim 1: The walls located on both sides in the width direction of the stairs are made of fireproof construction walls using a dry construction method, and the walls located on both sides in the length direction of the stairs and the landing supported by the walls are made of RC construction using cast-in-place concrete. A structure of a stairway, characterized in that an S-shaped staircase consisting of a steel stringer and a steel step floor supported on both sides by the steel stringer is constructed between the landings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3103914A JP2987469B2 (en) | 1991-04-08 | 1991-04-08 | Staircase structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3103914A JP2987469B2 (en) | 1991-04-08 | 1991-04-08 | Staircase structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04309650A true JPH04309650A (en) | 1992-11-02 |
| JP2987469B2 JP2987469B2 (en) | 1999-12-06 |
Family
ID=14366698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3103914A Expired - Fee Related JP2987469B2 (en) | 1991-04-08 | 1991-04-08 | Staircase structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2987469B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002213087A (en) * | 2001-01-17 | 2002-07-31 | Sumitomo Forestry Co Ltd | Approach of dwelling house |
| CN107630531A (en) * | 2017-11-03 | 2018-01-26 | 中建局华江建设有限公司 | A kind of large cantilever clear-water concrete stair and its construction method |
-
1991
- 1991-04-08 JP JP3103914A patent/JP2987469B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002213087A (en) * | 2001-01-17 | 2002-07-31 | Sumitomo Forestry Co Ltd | Approach of dwelling house |
| CN107630531A (en) * | 2017-11-03 | 2018-01-26 | 中建局华江建设有限公司 | A kind of large cantilever clear-water concrete stair and its construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2987469B2 (en) | 1999-12-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |