JP2662545B2 - Precast concrete stairs and method of construction - Google Patents
Precast concrete stairs and method of constructionInfo
- Publication number
- JP2662545B2 JP2662545B2 JP4299648A JP29964892A JP2662545B2 JP 2662545 B2 JP2662545 B2 JP 2662545B2 JP 4299648 A JP4299648 A JP 4299648A JP 29964892 A JP29964892 A JP 29964892A JP 2662545 B2 JP2662545 B2 JP 2662545B2
- Authority
- JP
- Japan
- Prior art keywords
- precast concrete
- staircase
- middle wall
- step board
- wall material
- 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.)
- Expired - Fee Related
Links
Landscapes
- Steps, Ramps, And Handrails (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は屋外階段を構築するため
のプレキャストコンクリート階段及びその構築方法に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a precast concrete stair for constructing an outdoor stair and a method for constructing the same.
【０００２】[0002]
【従来の技術】建築現場において労働力を集約して建物
を構築することは、熟練作業員の慢性的な不足から困難
な場合がある。そこで、近年はこのような状況から鉄筋
コンクリート構造物の各部材、すなわち、柱、梁、壁、
床材等のプレキャスト化が進み、これらのプレキャスト
部材を組み立てて鉄筋コンクリート構造物を構築すこと
により施工工程の省力化を図って労働力不足に対処して
いる。2. Description of the Related Art It is sometimes difficult to construct a building by concentrating a labor force at a construction site due to a chronic shortage of skilled workers. Therefore, in recent years, from such a situation, each member of the reinforced concrete structure, that is, columns, beams, walls,
Precasting of flooring materials and the like is progressing, and by assembling these precast members to construct a reinforced concrete structure, labor in the construction process is reduced to cope with a labor shortage.
【０００３】以上のような鉄筋コンクリート構造物の重
要な部位のひとつに屋外階段があるが、この構築は最も
工程数を必要とするため鉄骨階段が主流となっている。
しかし、この鉄骨階段は見栄えが悪く、グレードの高い
マンション等には使用できず、しかも定期的なメンテナ
ンスを必要とするばかりでなく、歩行音や歩行振動が大
きくて伝搬しやすいという問題があった。そのためこの
鉄骨階段に代わる屋外階段として、鉄筋コンクリート階
段のプレキャスト化が望まれているが、これをプレキャ
スト化した例は少なく、壁と段板とを一体的に成形した
もの等があるのみである。One of the important parts of the reinforced concrete structure as described above is an outdoor staircase. However, since this construction requires the most steps, a steel frame staircase is mainly used.
However, the steel stairs have a poor appearance, cannot be used for high-grade condominiums, etc., and not only require regular maintenance, but also have a problem that loud sounds and vibrations are easily transmitted due to loud walking sounds and vibrations. . Therefore, as an outdoor staircase replacing this steel staircase, a precast reinforced concrete staircase is desired. However, there are few examples in which this is precast, and there is only one in which a wall and a step board are integrally formed.
【０００４】[0004]
【発明が解決しようとする課題】しかし、上記のような
壁と段板とを一体的に成形したものは、運搬及び組み立
てにトレーラや大型のクレーンを用いるため、幅狭で不
整備な道路や狭少な現場敷地が多い状況においては運搬
及び組み立てに多大の労力を必要としているのが現状で
ある。本発明は上記のような問題に鑑みてなされたもの
であり、その目的は、幅狭で不整備な道路や狭少な現場
敷地においても運搬及び組み立てが容易に出来るプレキ
ャストコンクリート階段及びその構築方法を提供するこ
とである。However, since the above-described wall and step board are integrally formed, a trailer or a large crane is used for transportation and assembly, so that a narrow and inadequate road or road may be used. At present, a lot of labor is required for transportation and assembly in a situation where there are many small site premises. The present invention has been made in view of the above problems, and an object of the present invention is to provide a precast concrete staircase which can be easily transported and assembled even on a narrow and poorly maintained road or a narrow site site, and a method of constructing the same. To provide.
【０００５】[0005]
【課題を解決するための手段】以上の課題を達成するた
めの本発明は、中壁材の両側面に設けた段板が中壁材の
両側面に突出した梁材で支持され、一方の段板の上端と
他方の段板の下端とが踊場で接続されてなることを特徴
とする。また、プレキャストコンクリート階段の構築方
法は、中壁材の縦方向の両端面に高さを違えてそれぞれ
形成した嵌入溝に梁材を嵌入して中壁材の両側面に突出
させた後、これらの梁材間にそれぞれ段板を掛け渡して
一方の段板の上端と他方の段板の下端とを踊場で接続し
て構築することを特徴とする。 SUMMARY OF THE INVENTION In order to achieve the above object, according to the present invention , a step plate provided on both side surfaces of a middle wall material is formed of a middle wall material.
Supported by beam members projecting on both sides, characterized in that the lower end of the upper end and the other stage plate of one of the stair treads which are connected with landings
And In addition, the construction method of the precast concrete stairs is different at the both ends in the vertical direction of the middle wall material.
The beam is inserted into the formed insertion groove and protrudes from both sides of the middle wall material
After, characterized in that constructed by connecting the lower end of the upper end and the other stage plate of these beam members one stage plate respectively spanned the stage plate between at landing.
【０００６】[0006]
【作用】プレキャストコンクリート階段は段板が中壁材
の両側面に突出した梁材で支持されてなることにより、
幅狭で不整備な道路や狭少な現場敷地においても運搬が
容易に出来る。また、中壁材の両側面に突設した梁材に
それぞれ段板を掛け渡し、かつ一方の段板の上端と他方
の段板の下端とを踊場で接続して形成したことにより、
狭少な現場敷地においてもプレキャストコンクリート階
段を容易に構築できる。[Function] The precast concrete stairs are supported by beams that project from both sides of the middle wall material.
It can be easily transported on narrow and poorly maintained roads or on narrow site premises. Also, by stepping each step board on the beam material protruding on both side surfaces of the middle wall material, and by forming the upper end of one step plate and the lower end of the other step plate at a landing,
Precast concrete stairs can be easily constructed even on small site premises.
【０００７】[0007]
【実施例】以下、本発明の一実施例を図面に基づいて詳
細に説明する。図１は本発明のプレキャストコンクリー
ト階段の斜視図、図２は同側面図、図３は同平面図、図
４は梁材に段板を掛け渡した一部省略側面図、図５は段
板の側面図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. 1 is a perspective view of a precast concrete staircase of the present invention, FIG. 2 is a side view thereof, FIG. 3 is a plan view thereof, FIG. 4 is a partially omitted side view in which a step board is laid over a beam, and FIG. FIG.
【０００８】プレキャストコンクリート階段１は図１〜
図３に示すように、上面から主筋２ａが突出した中壁材
２の両側面に段板３、４が組み付けられ、これらの段板
３、４が中壁材２の両側面に突設された梁材５で支持さ
れている。The precast concrete staircase 1 is shown in FIGS.
As shown in FIG. 3, step plates 3 and 4 are attached to both side surfaces of the middle wall member 2 from which the main reinforcement 2 a projects from the upper surface, and these step plates 3 and 4 project from both side surfaces of the middle wall member 2. It is supported by the beam material 5 which was made.
【０００９】この梁材５は図４に示すように、中壁材２
の縦方向の両端面に高さを違えてそれぞれ形成した嵌入
溝６にＨ形鋼が嵌入されて形成され、該Ｈ形鋼がボルト
５ａで固定され、嵌入溝６にはグラウト材６ｂが圧入さ
れている。図中６ａはシール材である。尚、この梁材５
は上記のものに限らず、プレキャストコンクリート梁を
使用することも可能である。[0009] As the beam member 5 is shown in FIG. 4, middle wall material 2
Fittings with different heights on both end faces in the vertical direction
An H-shaped steel is fitted into the groove 6 and formed.
5a, and the grout material 6b is press-fitted into the fitting groove 6.
Have been. 6a is a sealing material in the figure . In addition, this beam material 5
Is not limited to the above, and it is also possible to use a precast concrete beam.
【００１０】この梁材５で支持されている段板３、４は
ささら板３ａ、４ａの上下に踊場板３ｂ、４ｂを備え、
これらの踊場板３ｂ、４ｂで両側面の段板３、４が接続
されて階段７を形成し、この階段７の外側には手摺７ａ
が取り付けられている。また躯体８側と接続される踊場
板３ｂ、４ｂには連結筋３ｃ、４ｃが突設されている。
この段板３、４は、図６に示すように、前記踊場板３
ｂ、４ｂとささら板３ａ、４ａとにかけて形成されたス
リット９ａと中壁板２のスリット９ｂとの間に圧入され
たモルタル９ｃで中壁材２に接合され、該モルタル９ｃ
の上下にはシール材９ｄが充填されている。The step plates 3, 4 supported by the beam members 5 have landing plates 3b, 4b above and below the sara plates 3a, 4a,
These landing boards 3b and 4b connect the step boards 3 and 4 on both sides to form a staircase 7, and a handrail 7a is provided outside the staircase 7.
Is attached. In addition, connecting bars 3c, 4c protrude from landing plates 3b, 4b connected to the skeleton 8 side.
As shown in FIG. 6, the step boards 3 and 4
b, 4b and the mortar 9c press-fitted between the slit 9a formed between the rust plates 3a, 4a and the slit 9b of the middle wall plate 2, and joined to the middle wall material 2 by the mortar 9c.
The top and bottom are filled with a sealing material 9d.
【００１１】また、前記踊場板３ｂ、４ｂも、図７に示
すように、端部のスリット１０間に充填されたモルタル
１０ａでそれぞれ接続されている。また踊場板３ｂ、４
ｂ上面の凹溝１１間の一部には連結プレート１３が掛け
渡されており、さらにその全長にわたりシール材１３ａ
及びモルタル１１ａが充填されている。The landing boards 3b, 4b are also connected by mortars 10a filled between the slits 10 at the ends, as shown in FIG. Landing board 3b, 4
b, a connection plate 13 is stretched over a part of the concave groove 11 on the upper surface, and a sealing material 13a extends over the entire length thereof.
And mortar 11a.
【００１２】以下、このプレキャストコンクリート階段
の構築方法について、図８の（１）及び（２）に基づい
て説明する。このプレキャストコンクリート階段１は、
前述のように中壁材２と、段板３、４と、梁材５とをそ
れぞれ組み立てることにより構成されている。したがっ
て、まず初めに同図の（１）に示すように、主筋２ａが
突出した中壁材２の嵌入溝６にＨ形鋼の梁材５を嵌入
し、その上下にシール材６ａを充填すると共に嵌入溝６
にはグラウト材６ｂを圧入して梁材５を固定する。Hereinafter, a method of constructing the precast concrete stairs will be described with reference to FIGS. 8 (1) and 8 (2). This precast concrete staircase 1
As described above, the intermediate wall member 2, the step plates 3, 4 and the beam member 5 are assembled. Therefore, first, as shown in (1) of the figure, the H-shaped steel beam 5 is fitted into the fitting groove 6 of the middle wall material 2 from which the main reinforcement 2a protrudes, and the sealing material 6a is filled above and below it. Fitting groove 6 with
Then, the grout material 6b is press-fitted, and the beam material 5 is fixed.
【００１３】次に、同図の（２）に示すように、中壁材
２の両側面に突設されたこの梁材５間に一側面の段板３
を架設し、それを仮支持材Ｎで支持した状態で次の中壁
材２を上載せし、連結金具２ｂで互いの主筋２ａ同士を
接続する。そして、前記段板３と同時に他側面の段板４
が架設されて踊場板３ｂ、４ｂを接続することにより階
段７を構築する。この接続は図７に示すように、踊場板
３ｂ、４ｂの凹溝１１内に連結プレート１３を掛け渡し
てモルタル１１ａを充填すると共に、互いに当接したス
リット１０間にモルタル１０ａを充填して行うものであ
る。Next, as shown in FIG. 2B, a step plate 3 on one side is interposed between the beam members 5 protruding from both side surfaces of the intermediate wall member 2.
And the next intermediate wall member 2 is placed on the temporary support member N in a state where it is supported by the temporary support member N, and the main reinforcements 2a are connected to each other by the connection fitting 2b. And, at the same time as the step board 3, the step board 4 on the other side.
Is constructed and the staircase 7 is constructed by connecting the landing boards 3b and 4b. As shown in FIG. 7, this connection is performed by filling the mortar 11a by spanning the connecting plate 13 in the concave groove 11 of the landing plate 3b, 4b, and filling the mortar 10a between the slits 10 that are in contact with each other. Things.
【００１４】また、図６に示すように、段板３、４のス
リット９ａと中壁材２のスリット９ｂとの間にもモルタ
ル９ｃを充填することにより段板３、４と中壁材２とが
接続される。そして、図２に示すように、この階段７の
外側に手摺７ａを取り付けてプレキャストコンクリート
階段１を完成させる。Further, as shown in FIG. 6, the middle wall material and the step plate 3,4 by filling the mortar 9c also between the slit bets 9b of slits 9a and medium wall material 2 of stair treads 3, 4 2 is connected. Then, as shown in FIG. 2, a handrail 7a is attached to the outside of the stairs 7 to complete the precast concrete stairs 1.
【００１５】次に、プレキャストコンクリート階段を用
いて鉄筋コンクリート構造物の屋外階段を構築する方法
について説明する。これは、図９に示すように、先ず中
壁材２によりプレキャストコンクリート階段１を立て、
かつ中壁材２を支保工１４でその厚さの薄い方向に固定
保持させると共に、１階及び２階の躯体側の踊場板３
ｂ、４ｂを現場打ちコンクリート１５により躯体１６に
接続して１階から２階にかけての階段１７を構築する。Next, a method for constructing an outdoor staircase of a reinforced concrete structure using a precast concrete staircase will be described. As shown in FIG. 9, first, a precast concrete staircase 1 is erected by the middle wall material 2,
In addition, the intermediate wall material 2 is fixedly held in the direction of thinner thickness by the supporter 14, and the landing plate 3 on the skeleton side of the first and second floors is provided.
b, 4b are connected to a skeleton 16 by cast-in-place concrete 15 to construct a staircase 17 from the first floor to the second floor.
【００１６】次に、このプレキャストコンクリート階段
１にさらに他のプレキャストコンクリート階段１を積み
重ねることにより２階から３階にかけての階段１８を構
築する。これは、下階のプレキャストコンクリート階段
１の中壁材２に上階のプレキャストコンクリート階段１
の中壁材２を積み重ねて、前記と同様に中壁材２を支保
工１４で支持すると共に、積み重ね部にグラウト材１９
を充填してこれらを接続する。Next, another precast concrete staircase 1 is stacked on this precast concrete staircase 1 to construct a staircase 18 from the second floor to the third floor. This is because the precast concrete staircase 1 on the upper floor is
In the same manner as described above, the middle wall material 2 is supported by the shoring 14, and the grout material 19
And connect them.
【００１７】また、２階から３階にかけての躯体１６側
の踊場板３ｂ、４ｂは前記と同様の方法により現場打ち
コンクリート１５で躯体１６と接続する。そして、この
ような作業を順次繰り返すことにより、図９に示すよう
な、屋外階段２０が構築される。The landing plates 3b, 4b on the skeleton 16 side from the second floor to the third floor are connected to the skeleton 16 by cast-in-place concrete 15 in the same manner as described above. Then, by repeating such operations sequentially, an outdoor staircase 20 as shown in FIG. 9 is constructed.
【００１８】[0018]
【発明の効果】プレキャストコンクリート階段が中壁材
の両側面に設けた段板が中壁材の両側面に突出した梁材
で支持され、一方の段板の上端と他方の段板の下端とが
踊場で接続されてなるので、幅狭で不整備な道路や狭少
な現場敷地においても容易に運搬できると共に、鉄筋コ
ンクリート構造物においてグレードの高い屋外階段を構
築することができる。According to the present invention, a step board provided with precast concrete stairs on both sides of the middle wall is supported by beams projecting from both sides of the middle wall, and an upper end of one of the steps and a lower end of the other step. Are connected at a landing, so that it can be easily transported even on a narrow and poorly maintained road or a small site, and a high-grade outdoor staircase can be constructed in a reinforced concrete structure.
【００１９】プレキャストコンクリート階段の構築を、
中壁材の縦方向の両端面に高さを違えてそれぞれ形成し
た嵌入溝に梁材を嵌入して中壁材の両側面に突出させた
後、これらの梁材間にそれぞれ段板を掛け渡して一方の
段板の上端と他方の段板の下端とを踊場で接続して行う
ことにより、狭少な現場敷地においてもプレキャストコ
ンクリート階段を容易に組み立てることが出来る。The construction of the precast concrete stairs
Different heights are formed on both ends of the middle wall material in the vertical direction.
After the beam is inserted into the fitting groove and projected on both side surfaces of the intermediate wall material, a step board is bridged between these beam members, and the upper end of one of the step boards and the other step are provided. The precast concrete stairs can be easily assembled even on a small site by connecting the lower end of the building with the landing.
【図１】プレキャストコンクリート階段の斜視図であ
る。FIG. 1 is a perspective view of a precast concrete staircase.
【図２】プレキャストコンクリート階段の側面図であ
る。FIG. 2 is a side view of a precast concrete staircase.
【図３】プレキャストコンクリート階段の平面図であ
る。FIG. 3 is a plan view of a precast concrete staircase.
【図４】梁材に段板を掛け渡した一部省略側面図であ
る。FIG. 4 is a partially omitted side view in which a step board is hung over a beam member.
【図５】段板の側面図である。FIG. 5 is a side view of the step board.
【図６】段板と中壁材との接合部の断面図である。FIG. 6 is a cross-sectional view of a joint between a step board and an intermediate wall material.
【図７】（１）及び（２）は段板における踊場板の接合
部の断面図である。FIGS. 7 (1) and (2) are cross-sectional views of a joint portion of a landing board on a step board.
【図８】（１）及び（２）はプレキャストコンクリート
階段の構築方法を示す工程図である。FIGS. 8 (1) and (2) are process diagrams showing a method for constructing a precast concrete staircase.
【図９】プレキャストコンクリート階段を用いて構築し
た屋外階段の正面図である。FIG. 9 is a front view of an outdoor staircase constructed using a precast concrete staircase.
１ プレキャストコンクリート階段 ２ 中壁材 ３、４ 段板 ５ 梁材 1 Precast concrete staircase 2 Middle wall material 3, 4 Step board 5 Beam material
───────────────────────────────────────────────────── フロントページの続き (72)発明者 堀 義孝 東京都千代田区神田須田町１−23−２ 大木建設株式会社内 (72)発明者 中村 幸雄 東京都千代田区神田須田町１−23−２ 大木建設株式会社内 (72)発明者 小川 雅 東京都千代田区神田須田町１−23−２ 大木建設株式会社内 (72)発明者 内藤 雅義 東京都千代田区猿楽町２−４−11 日本 カイザー株式会社内 (72)発明者 武井 一夫 東京都千代田区猿楽町２−４−11 日本 カイザー株式会社内 (72)発明者 結城 俊二 東京都千代田区猿楽町２−４−11 日本 カイザー株式会社内 (72)発明者 坪沼 和充 東京都千代田区猿楽町２−４−11 日本 カイザー株式会社内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yoshitaka Hori 1-2-3, Kandasudacho, Chiyoda-ku, Tokyo Inside Oki Construction Co., Ltd. (72) Yukio Nakamura 1-2-23-2, Kandasudacho, Chiyoda-ku, Tokyo Oki Construction Co., Ltd. (72) Inventor Masaru Ogawa 1-2-3, Kandasudacho, Chiyoda-ku, Tokyo Oki Construction Co., Ltd. (72) Inventor Masayoshi Naito 2-4-11, Sarugakucho, Chiyoda-ku, Tokyo Japan Kaiser Shares Inside the company (72) Kazuo Takei 2-4-11 Sarugakucho, Chiyoda-ku, Tokyo Japan Kaiser Corporation (72) Inventor Shunji Yuki 2-4-11 Sarugakucho, Chiyoda-ku Tokyo, Japan Kaiser Corporation (72 Inventor Kazumitsu Tsubonuma 2-4-11 Sarugakucho, Chiyoda-ku, Tokyo Inside Kaiser Co., Ltd.
Claims (2)
両側面に突出した梁材で支持され、一方の段板の上端と
他方の段板の下端とが踊場で接続されてなることを特徴
とするプレキャストコンクリート階段。1. A step board provided on both sides of a middle wall material is
A precast concrete staircase supported by beams protruding from both side surfaces, wherein an upper end of one step board and a lower end of the other step board are connected at a landing.
それぞれ形成した嵌入溝に梁材を嵌入して中壁材の両側
面に突出させた後、これらの梁材間にそれぞれ段板を掛
け渡して一方の段板の上端と他方の段板の下端とを踊場
で接続して構築することを特徴とするプレキャストコン
クリート階段の構築方法。2. Different heights at both ends in the longitudinal direction of the middle wall material
Insert the beam into the fitting grooves formed respectively and insert both sides of the middle wall material
After projecting to the surface, a precast concrete staircase is constructed by spanning a step board between these beam members and connecting the upper end of one step board and the lower end of the other step board at a landing. How to build.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4299648A JP2662545B2 (en) | 1992-11-10 | 1992-11-10 | Precast concrete stairs and method of construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4299648A JP2662545B2 (en) | 1992-11-10 | 1992-11-10 | Precast concrete stairs and method of construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06146520A JPH06146520A (en) | 1994-05-27 |
| JP2662545B2 true JP2662545B2 (en) | 1997-10-15 |
Family
ID=17875302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4299648A Expired - Fee Related JP2662545B2 (en) | 1992-11-10 | 1992-11-10 | Precast concrete stairs and method of construction |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2662545B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101166668B1 (en) * | 2009-12-29 | 2012-07-24 | 김민승 | Construction structure and method of PC stairs by non support system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3421298B2 (en) | 2000-03-14 | 2003-06-30 | 友也 太田 | Internal stairs for buildings and method of construction |
| CN115262880B (en) * | 2022-08-05 | 2023-10-31 | 中铁二院昆明勘察设计研究院有限责任公司 | L-shaped stair structure for non-column subway station |
-
1992
- 1992-11-10 JP JP4299648A patent/JP2662545B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101166668B1 (en) * | 2009-12-29 | 2012-07-24 | 김민승 | Construction structure and method of PC stairs by non support system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06146520A (en) | 1994-05-27 |
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