JPS6282162A - Upstairs made of precast concrete and its construction - Google Patents
Upstairs made of precast concrete and its constructionInfo
- Publication number
- JPS6282162A JPS6282162A JP60219609A JP21960985A JPS6282162A JP S6282162 A JPS6282162 A JP S6282162A JP 60219609 A JP60219609 A JP 60219609A JP 21960985 A JP21960985 A JP 21960985A JP S6282162 A JPS6282162 A JP S6282162A
- Authority
- JP
- Japan
- Prior art keywords
- unit
- wall
- precast concrete
- cutout
- tread
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明はプレキャストコンクリート製階段及びその構
築方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) This invention relates to a precast concrete staircase and a method of constructing the same.
（発明が解決しようとする問題点）
鉄筋コンクリート造の階段では階段と壁、床等各種の取
合いが多いために施工性が極めて悪く、躯体工事より手
間がかかり、また仕上げまで多くの工程を要するので工
期が長期化する等の難点がある。(Problems to be solved by the invention) Stairs made of reinforced concrete are extremely difficult to construct because there are many connections between the stairs, walls, floors, etc., and it takes more time than building the structure, and requires many steps to finish. There are drawbacks such as a long construction period.
更に施工中のサポートはその存置期間が長いため人の通
行の妨げとなり、作業能率の低下を招いている。Furthermore, the supports during construction remain in place for a long time, obstructing the passage of people and causing a decline in work efficiency.
また段板なプレキャストコンクリートで製作し、これを
現場打ちの壁へ支持させて階段を構築する方法では雨水
の段板上面から壁への浸透、更には段板底面への回り込
みの恐れがあり、この接合部における納まりを検討する
必要がある。In addition, if the stairs are built using stepped precast concrete and supported by a cast-in-place wall, there is a risk that rainwater may seep into the wall from the top of the steps and even run around to the bottom of the steps. It is necessary to consider the fit at this joint.
この発明は従来の鉄筋コンクリート造階段の構築に伴う
上記の問題点を解消する目的からなされたもので、プレ
キャストコンクリート製のユニットで階段を構築するこ
とにより課題を解決しようとするものである。This invention was made with the aim of solving the above-mentioned problems associated with the construction of conventional reinforced concrete stairs, and attempts to solve the problems by constructing the stairs with units made of precast concrete.
Ｃ問題点を解決するための手段）
本発明では一段分の段板ユニットを段板に上段へのけこ
み板を一体化してプレキャストコンクリートで製作し、
これを組み立てて階段を構築することにより施工性の向
上、工期の短縮を図る。Means for Solving Problem C) In the present invention, a one-level tread unit is manufactured from precast concrete by integrating the tread plate and the upper tier board, and
By assembling these to construct stairs, we aim to improve construction efficiency and shorten the construction period.
段板ユニットには少なくとも一側面に立上り部が設けら
れるとともに、壁へのアンカー筋が突設される。The stepped board unit is provided with a rising portion on at least one side thereof, and is provided with an anchor bar protruding from the wall.
この段板ユニットを、その段板底面を下段の段板ユニッ
トのけこみ板に当接して組み立て、アンカー筋を壁に埋
設してプレキャストコンクリート製階段は形成される。A precast concrete staircase is formed by assembling this tread unit with the bottom surface of the tread in contact with the recess plate of the lower tread unit, and embedding anchor bars in the wall.
構築方法は上端に階段状の切り欠きが設けられた°下部
壁型枠の切り欠き上に段板ユニットを載置してこれを組
み立て、この段板ユニット上に下端に階段状の切り欠き
が設けられた上部壁型枠を建込んで壁型枠内へコンクリ
ートを打設し、アンカー筋を壁に埋設してプレキャスト
コンクリート製階段を構築するというものである。The construction method is to assemble the tier unit by placing it on top of the cutout in the lower wall formwork, which has a step-like cutout at the upper end, and then assemble it by placing the tier unit on top of the cutout in the lower wall formwork. The provided upper wall formwork is erected, concrete is poured into the wall formwork, and anchor bars are buried in the wall to construct precast concrete stairs.
（実 施 例） 以下本発明を一実施例を示す図面とともに説明する。(Example) The present invention will be described below with reference to drawings showing one embodiment.
まず第一の発明のプレキャストコンクリート製階段ＡＣ
以下ＰＣ階段Ａ）を第１図乃至第４図に基づいて説明す
る。First invention of precast concrete stairs AC
The PC staircase A) will be explained below based on FIGS. 1 to 4.
この発明はプレキャストコンクリート製段板ユニツ）ａ
（以下段板ユニットａ）を組み立てて構成されるもので
あり、図示した実施例では段板ユニットａは３タイプの
形状のものからなっている。すなわち第１図に示すよう
に段板１に上段へのけこみ板２が一体化され、断面り字
状に形成された最上部段板ユニットａ−１，−股部段板
ユニツ）ａ−２とけこみ板２のみで、断面工字状に形成
された最下部段板ユニツ）ａ−３の３タイプである。第
２図は一般部段板ユニットａ−２を示したものであるが
、最上部段板ユニッ）ａ−１と一般部段板ユニットａ
−２の少なくとも一側面ＶＣハ立上り部３が設けられて
おり、この立上り部６が第６図のように一部壁４内へ埋
め込まれて雨水の壁４への浸入を防止する。この立上り
部３はＰＣ階階段に隣接する壁４の側に設ければよく１
図面では両側面に設けた場合を示しであるが１片持ち形
式の場合にはその壁の側に設ければ足りる。This invention is a precast concrete step plate unit) a.
(hereinafter referred to as a tier unit a) is assembled, and in the illustrated embodiment, the tier unit a has three types of shapes. That is, as shown in FIG. 1, the uppermost step board 2 is integrated with the step board 1, and the uppermost step board unit a-1, -crotch step board unit) a- is formed in a cross-sectional shape. There are 3 types: a-3, which is a lowermost step plate unit with only 2 recessed plates 2 and a cross-sectional shape. Figure 2 shows the general section tier unit a-2, and the top tier unit a-1 and the general section tier unit a-2.
-2 is provided with a rising portion 3 on at least one side of the VC, and this rising portion 6 is partially embedded into the wall 4 as shown in FIG. 6 to prevent rainwater from entering the wall 4. This rising portion 3 may be provided on the side of the wall 4 adjacent to the stairs on the PC floor.
Although the drawing shows a case in which it is provided on both sides, in the case of a single cantilever type, it is sufficient to provide it on that wall side.
また段板ユニットａの立上り部６が設けられる側には壁
４へのアンカー筋５が突設され、アンカー筋５が壁４内
へ埋設されて各段板二ニットａは壁４に支持される。Further, an anchor bar 5 to the wall 4 is provided protruding from the side where the rising portion 6 of the tier unit a is provided, and the anchor bar 5 is buried in the wall 4 so that each tier unit a is supported by the wall 4. Ru.
各段板ユニットａはその段板１底面を下段の段板ユニツ
）ａのけこみ板２に当接して最下部段板ユニットａ−３
から一般部段板ユニットａ−２．最上部段板ユニツ）
ａ −１へと順次下段から上段へ組み立てられる。そし
て壁４ヘコンクリートが打設されて第４図のようにＰＣ
階階段が形成される。Each tier unit a contacts the bottom surface of its tier plate 1 with the recessed plate 2 of the lower tier unit a-3.
From general section step plate unit a-2. top tier unit)
a-1 is assembled sequentially from the lower stage to the upper stage. Then, concrete is placed on wall 4 and PC is placed as shown in Figure 4.
A stairway is formed.
次に第二の発明のＰＣ階段への構築方法を第５図及び第
１図乃至第４図に基づいて説明する。Next, a method of constructing a PC staircase according to the second invention will be explained based on FIG. 5 and FIGS. 1 to 4.
この発明は段板ユニツ）ａを下部壁型枠乙の切り欠き６
ａ上に載置して組み立て、段板ユニットａ上に上部壁型
枠７を建込んで壁駆枠内へコンクリートを打設し、ＰＣ
階階段を構築する方法である。In this invention, the step plate unit) a is connected to the notch 6 of the lower wall formwork B.
Place the upper wall formwork 7 on top of the step board unit a, pour concrete into the wall frame, and
This is a method of constructing a floor staircase.
下部壁型枠６．上部壁型枠Ｚ共内側の壁型枠であり、下
部壁型枠乙の上端には段板ユニットａ力を載る階段状の
、すなわちささら桁状の切り欠き６ａが設けられ、一方
の上部壁型枠７の下端には同様に段板ユニツ）ａに嵌合
する形状に、切り欠き７ａが設けられている。そして下
部壁西型枠乙の切り欠き６ａ上に第３図、第５図−Ｈの
ように段板ユニツ）ａの立上り部６が設けられた側の端
部が載置され、更にその段板ユニットａ端部上に第５図
−■のように上部壁型枠７の切り欠き７ａが載る。Lower wall formwork6. The upper wall formwork Z is also an inner wall formwork, and the upper end of the lower wall formwork B is provided with a step-like, that is, stringer-like notch 6a on which the step plate unit a is placed. Similarly, a cutout 7a is provided at the lower end of the formwork 7 in a shape that fits into the stepped plate unit a. Then, as shown in Fig. 3 and Fig. 5-H, the end of the step plate unit a on the side where the rising part 6 is provided is placed on the notch 6a of the west formwork B of the lower wall, and then The notch 7a of the upper wall formwork 7 rests on the end of the plate unit a as shown in FIG.
施工手順を第５図に基づいて説明する。The construction procedure will be explained based on FIG.
まず下部壁型枠６を所定の位置に建込む（１）。First, the lower wall formwork 6 is erected in a predetermined position (1).
続いて前記のように最下部段板ユニツ）ａ−３から順に
一般部段板ユニツ）ａ−２，最上部段板ユニツ） ａ−
１と下段から上段へ切り欠き６ａ上に段板ユニットａを
載置する（損。次に上部壁型枠７を段板ユニツ）ａ上に
建込み（ｍ、更に外側の壁型枠を建込んで壁型枠内へコ
ンクリートを打設しく財）、ＰＣ階階段は完成する。Next, as mentioned above, from the bottom step board unit) a-3, the general section step board unit) a-2, and the top step board unit) a-
1. Place the tier unit a on the notch 6a from the lower tier to the upper tier (loss. Next, place the upper wall formwork 7 on the tier unit). After pouring concrete into the wall formwork, the stairs on the PC floor will be completed.
（発明の効果）
本発明では壁側に立上り部が形成されたプレキャスト製
の段板ユニットから階段を構成するものであるので、段
板上面から壁、底面への雨水の浸入２回り込みが防止さ
れる。(Effects of the Invention) In the present invention, a staircase is constructed from a precast tread unit with a rising portion formed on the wall side, so rainwater is prevented from entering from the top of the tread to the wall and bottom. Ru.
之 また施工は段板ユニットを壁型枠上に載置するの
みの作業で、サポートが不要であるので、作業性が良く
、施工性の大幅な向上、工程数の削減、工期の短縮、経
費の節減を図ることができる。In addition, the construction process is simply placing the tiered board unit on the wall formwork, and no support is required, so it is easy to work with, greatly improving workability, reducing the number of steps, shortening the construction period, and reducing costs. It is possible to save money.
第１図は２０階段の実施例を示した断面図であり、第２
図は一般部段板ユニットを示した斜視図である。第６図
は段板ユニットの設置状態を示した正面図であり、第４
図は２０階段の完成状態を示した斜視図である。第５図
はＰＣ階段構築方法の手順を示した斜視図である。
Ａ・・・プレキャストコンクリート製階段、ａ・・・プ
レキャストコンクリート製段板ユニット、ａ−１・・・
最上部段板ユニット、ａ−２・・・−股部段板ユニット
、ａ−６・・・最下部段板ユニット。
１・・・段板、２・・・けこみ板、３・・・立上り部、
４・・・壁、５・・・アンカー筋、６・・・下部壁型枠
、７・・・上部壁型枠ｔ ６ａ、７ａ・・・切り欠き。FIG. 1 is a sectional view showing an example of 20 stairs, and the second
The figure is a perspective view showing the general section step board unit. FIG. 6 is a front view showing the installed state of the step board unit, and the fourth
The figure is a perspective view showing the completed state of 20 stairs. FIG. 5 is a perspective view showing the steps of the PC staircase construction method. A... Precast concrete stairs, a... Precast concrete step unit, a-1...
Top step board unit, a-2...-crotch step board unit, a-6... bottom step board unit. 1...Step board, 2...Kekomi board, 3...Rising part,
4... Wall, 5... Anchor reinforcement, 6... Lower wall formwork, 7... Upper wall formwork t 6a, 7a... Notch.
Claims (2)
も一側面に立上り部が設けられるとともに、壁へのアン
カー筋が突設されて断面Ｌ字状に形成されたプレキャス
トコンクリート製段板ユニットを、その段板底面を下段
の段板ユニットのけこみ板に当接して組み立て、アンカ
ー筋を壁に埋設して各段板ユニットを壁に支持させてな
るプレキャストコンクリート製階段。(1) Precast concrete steps that have an L-shaped cross section with an integrated step board and a raised section on at least one side, and an anchor bar protruding from the wall. A precast concrete staircase in which plate units are assembled with the bottom of the tiers in contact with the recess plate of the lower tier unit, and each tier unit is supported by the wall by embedding anchor bars in the wall.
きが設けられた下部壁型枠の切り欠き上に、段板に上段
へのけこみ板が一体化され、少なくとも一側面に立上り
部が設けられるとともに、壁へのアンカー筋が突設され
て断面Ｌ字状に形成されたプレキャストコンクリート製
段板ユニットを載置すると同時に、段板ユニットの段板
底面を下段の 段板ユニットのけこみ板に当接して組み立て、続いて下
端に階段状の切り欠きが設けられた上部壁型枠を段板ユ
ニット上に建込み、壁型枠内へコンクリートを打設して
アンカー筋を壁に埋設し、各段板ユニットを壁に支持さ
せて階段を構築するプレキャストコンクリート製階段の
構築方法。(2) On the cutout of the lower wall formwork, which is built in a predetermined position and has a step-like cutout at the upper end, a cutout board for the upper step is integrated with the step board, and at least one side of the cutout is integrated. At the same time, a precast concrete tread unit, which has a rising part and an L-shaped cross section with anchor bars protruding from the wall, is placed, and at the same time, the bottom of the tread unit is connected to the lower tread board. The unit is assembled by contacting the ridge plate of the unit, and then the upper wall formwork with a step-like notch at the lower end is erected on top of the step plate unit, and concrete is poured into the wall formwork to provide anchor reinforcement. A method of constructing precast concrete stairs, in which the stairs are constructed by embedding them in the wall and supporting each tread unit on the wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60219609A JPS6282162A (en) | 1985-10-02 | 1985-10-02 | Upstairs made of precast concrete and its construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60219609A JPS6282162A (en) | 1985-10-02 | 1985-10-02 | Upstairs made of precast concrete and its construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6282162A true JPS6282162A (en) | 1987-04-15 |
| JPH0414225B2 JPH0414225B2 (en) | 1992-03-12 |
Family
ID=16738210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60219609A Granted JPS6282162A (en) | 1985-10-02 | 1985-10-02 | Upstairs made of precast concrete and its construction |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6282162A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6448964A (en) * | 1987-08-18 | 1989-02-23 | Fujita Corp | Execution of upstairs |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5680407A (en) * | 1979-12-06 | 1981-07-01 | Kajima Corp | Manufacture of concrete footboard containing fiber |
-
1985
- 1985-10-02 JP JP60219609A patent/JPS6282162A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5680407A (en) * | 1979-12-06 | 1981-07-01 | Kajima Corp | Manufacture of concrete footboard containing fiber |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6448964A (en) * | 1987-08-18 | 1989-02-23 | Fujita Corp | Execution of upstairs |
| JPH0438267B2 (en) * | 1987-08-18 | 1992-06-23 | Fujita Kk |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0414225B2 (en) | 1992-03-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |