JPH0237466B2 - - Google Patents
Info
- Publication number
- JPH0237466B2 JPH0237466B2 JP58160062A JP16006283A JPH0237466B2 JP H0237466 B2 JPH0237466 B2 JP H0237466B2 JP 58160062 A JP58160062 A JP 58160062A JP 16006283 A JP16006283 A JP 16006283A JP H0237466 B2 JPH0237466 B2 JP H0237466B2
- Authority
- JP
- Japan
- Prior art keywords
- precast concrete
- staircase
- mounting plate
- section
- stair
- 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 - Lifetime
Links
- 239000011178 precast concrete Substances 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000010276 construction Methods 0.000 description 10
- 239000004567 concrete Substances 0.000 description 6
- 238000009415 formwork Methods 0.000 description 6
- 230000003014 reinforcing effect Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Description
【発明の詳細な説明】
本発明は、主として多層階コンクリート建築物
の施工時に構築される階段で、詳しくは、階段ス
ラブ部と踏段部ならびに手摺部とからなるコンク
リート製階段に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a staircase mainly constructed during construction of a multi-story concrete building, and more particularly to a concrete staircase consisting of a staircase slab section, a step section, and a handrail section.
従来では、階段スラブ部と踏段部ならびに手摺
部とを現場でのコンクリート打設にて一体的に構
築していたのであるが、これによる場合は次の
〔〕，〔〕，〔〕で示すような問題があつた。 Conventionally, the stair slab, steps, and handrails were constructed integrally by pouring concrete on site, but in this case, as shown in the following [], [], and []. I had a problem.
〔〕 現場での制限された三次元空間内におい
て煩雑でかつ労力の要する配筋工事，型枠工
事，コンクリート打設を行なわなければなら
ず、しかも、コンクリート打設時から型枠撤去
までに一定の養生期間を置く必要があり、加え
て、型枠撤去後に補修工事や仕上工事を行なう
必要があるため、全体として多大の工費と工期
を要する。[] Complicated and labor-intensive reinforcing work, formwork work, and concrete pouring must be carried out within a limited three-dimensional space at the site. It is necessary to allow a curing period, and in addition, it is necessary to carry out repair work and finishing work after removing the formwork, which requires a large amount of construction cost and construction time as a whole.
〔〕 現場施工故に、ジヤンカ豆板等の発生な
どによる、コンクリート性能の低下を招来する
可能性があり、品質確保が難しい。[] Because it is carried out on-site, there is a possibility that the performance of the concrete will deteriorate due to the occurrence of jagged slabs, etc., making it difficult to ensure quality.
〔〕 所定の構築精度を確保するためには高度
の施工技術が必要で、この面においても工期の
増大を招来し易い。特に、このような問題は、
大工，鉄筋工などの躯体職技能工の質，量の不
足が叫ばれる今日の労務事情からして一層顕著
化する傾向にある。[] Advanced construction technology is required to ensure the specified construction accuracy, and this also tends to increase the construction period. In particular, such problems
This trend is becoming even more pronounced in today's labor situation, where there is a shortage in the quality and quantity of structural workers such as carpenters and reinforcing bar workers.
また、現在まで、いくつかのPC階段が考案さ
れ実施されてきたが、これまでの場合は次の(1)，
(2)で示すような問題があつた。 In addition, to date, several PC stairs have been devised and implemented, but so far the following (1),
There was a problem as shown in (2).
(1) 従来のPC階段は一体化されて製作されてい
たため、重量が重く、大型の揚重機を必要と
し、大型の揚重機のない小規模作業所での使用
は困難であつた。(1) Conventional PC stairs were manufactured in one piece, so they were heavy and required large lifting equipment, making it difficult to use in small-scale workshops without large lifting equipment.
(2) 従来のPC階段は一体化されて製作されてい
るため、階段の寸法，角度が違うとそのたびご
とに全面的にPC階段を設計し直し、新しく鋼
製型枠を製作しPC階段を作るため、多くの手
間と費用を要し、型枠の転用効率が低くコスト
高となつた。(2) Conventional PC stairs are manufactured in one piece, so if the dimensions and angle of the stairs are different, the PC stairs must be completely redesigned each time, and a new steel formwork is manufactured to create the PC stairs. It took a lot of time and money to make it, and the conversion efficiency of the formwork was low, resulting in high costs.
本発明は、上述のような階段構築上の問題点を
改善する点に目的を有する。 The present invention has an object to improve the above-mentioned problems in constructing stairs.
かかる目的を達成するために講じられた本発明
によるプレキヤストコンクリート製階段の特徴構
成は、階段スラブ部と踏段部ならびに手摺部とが
夫々各別にプレキヤストコンクリート版から構成
され、前記階段スラブ部に、前記踏段部を載置支
持可能な段部と前記手摺部に対する取付プレート
ならびに不陸調整具が設けられているとともに、
前記踏段部には、前記階段スラブ部に対して上方
から差込み固定可能な金具が設けられ、更に、前
記手摺部には、上層隣接階段の階段スラブ部１に
対する取付プレートと、前記踏段部の踏板形成部
下面を載置支持可能で、かつ、前記階段スラブ部
の取付プレートに対する連結プレートを備えた支
持部分ならびに不陸調整具とが設けられている点
にある。 The characteristic structure of the precast concrete staircase according to the present invention, which was taken to achieve such an object, is that the stair slab part, the step part, and the handrail part are each made of a precast concrete slab, and the stair slab part is made of precast concrete. , a step part on which the step part can be placed and supported, a mounting plate for the handrail part, and an unevenness adjuster are provided;
The step part is provided with a metal fitting that can be inserted and fixed from above to the stair slab part, and the handrail part is further provided with a mounting plate for the stair slab part 1 of the upper adjacent staircase and a tread plate of the step part. The present invention is characterized in that a supporting portion capable of mounting and supporting the lower surface of the formation and having a connecting plate to the mounting plate of the stair slab portion and an unevenness adjuster are provided.
上記特徴構成による作用，効果は次の通りであ
る。 The functions and effects of the above feature configuration are as follows.
〈作用〉
(イ) 階段スラブ部と踏段部ならびに手摺部とを設
備の整つた工場で、かつ、取扱い易い大きさで
予め各別に製作するから、これら各部の品質管
理を確実，容易に行なうことができるばかりで
なく、製作精度も可及的に向上することがで
き、しかも、各部のプレキヤスト版の運搬作業
も能率良く容易に行なうことができる。<Function> (a) Since the stair slab section, steps, and handrail sections are manufactured separately in advance in a well-equipped factory and in sizes that are easy to handle, quality control of each of these sections can be carried out reliably and easily. Not only this, but also the manufacturing accuracy can be improved as much as possible, and furthermore, the work of transporting the precast plates of each part can be carried out efficiently and easily.
(ロ) 構築現場においては、搬入された各部のプレ
キヤスト版をそれらに付設された取付けプレー
ト，連結プレート，金具等を介して所定の手順
で組付けるだけで良いから、所定の機機的強度
をもつた階段を熟練を要することなく簡単，安
全に構成することができるとともに、仕上作業
及び補修清掃作業の大巾な減少と仮設安全施設
の不要化を図ることができる。(b) At the construction site, it is only necessary to assemble the precast plates of each part brought in according to the prescribed procedures via the attached mounting plates, connection plates, metal fittings, etc., so it is possible to maintain the prescribed mechanical strength. It is possible to easily and safely construct a tangled staircase without requiring any skill, and it is also possible to greatly reduce finishing work, repair and cleaning work, and eliminate the need for temporary safety facilities.
(ハ) 建築物の躯体側に構築誤差がある場合でも、
この誤差を前記階段スラブ部及び手摺部に設け
た不陸調整具にて容易に吸収することができ
る。(c) Even if there are construction errors in the building frame,
This error can be easily absorbed by the unevenness adjuster provided on the stair slab portion and the handrail portion.
〈効果〉
今回のパーツ化プレキヤストコンクリート階段
は階段スラブユニツトの段受けアゴの設置間隔の
変更ならびに段ユニツトの踏面寸法，蹴上寸法の
変更，階段ユニツトの支持カゴ部分の変更をする
ことにより、いかなる角度でも製作することが出
来、型枠に多少手を加えるだけで角度の変更が可
能で新規に製作する必要がなく、型枠の転用効率
を高めることが出来る。<Effect> This part-based precast concrete staircase was created by changing the installation interval of the step support jaws of the stair slab unit, changing the tread dimensions and riser dimensions of the stair unit, and changing the support basket part of the stair unit. It can be manufactured at any angle, and the angle can be changed just by making some changes to the formwork, so there is no need to create a new one, and the efficiency of formwork conversion can be increased.
従つて、工期の短縮及び工費の低廉化を図り乍
ら品質的に勝れた階段を安全かつ能率良く構築し
得るに至つた。 Therefore, it has been possible to safely and efficiently construct a staircase that is superior in quality while shortening the construction period and reducing construction costs.
また、後述実施例で示すように、前記階段スラ
ブ部がPC鋼線を埋設したものである場合には、
この階段スラブ部を極力薄肉にして軽量化を図る
ことができる利点がある。 In addition, as shown in the examples below, when the stair slab part has a PC steel wire buried therein,
There is an advantage that the stair slab portion can be made as thin as possible to reduce its weight.
これにより現場取付時に小型の揚重機でも揚重
が可能となり、いままで大型の揚重機のない小規
模作業所では使用不可能であつたPC階段の使用
を可能とする。 This makes it possible to lift the product with a small lifting machine when installed on-site, making it possible to use PC stairs, which was previously impossible in small-scale workshops without a large lifting machine.
更に、前記踏段部が所定段数単位で複数に分割
されたものであり、かつ、前記固定金具が隣接分
割段部分同志を固定連結する金具にも兼用構成さ
れたものである場合には、踏段部の分割段部分の
持ち運びを少ない労力で楽に行なうことができる
とともに、これら分割段部分の取付け構造の簡素
化を図ることができる利点がある。 Furthermore, in the case where the step portion is divided into a plurality of parts each having a predetermined number of steps, and the fixing metal fitting is configured to also serve as a metal fitting for fixedly connecting adjacent divided step portions, the step portion This has the advantage that the divided step portions can be easily carried with less effort, and the mounting structure of these divided step portions can be simplified.
以下、本発明構成の実施例を図面に基づいて説
明する。 Hereinafter, embodiments of the configuration of the present invention will be described based on the drawings.
第１図乃至第３図で示すように、多層階コンク
リート建築物の下層フロア部F1と上層フロア部
F2とに亘つて構築されるプレキヤストコンクリ
ート製階段を構成するに、階段スラブ部１と踏段
部２ならびに手摺部３とを夫々各別にプレキヤス
トコンクリート版から構成している。 As shown in Figures 1 to 3, the lower floor part F1 and the upper floor part of a multi-story concrete building
In constructing the precast concrete staircase constructed over F 2 , the stair slab section 1, step section 2, and handrail section 3 are each constructed from precast concrete slabs.
前記階段スラブ部１は、前記フロア部F1，F2
に形成された段部４，４に載置支持される段部１
Ａ，１Ａと、前記踏段部２の各踏板形成部２ａ…
下面を水平又はほぼ水平姿勢で載置支持可能な側
面視ほぼ台形状の段部１Ｂ…ならびに、上方に開
口する踏段部用取付孔１Ｃ…を形成するととも
に、前記手摺部３が存在する側の横側部で、前記
踏段部２の各踏板形成部２ａ…に対応する箇所
に、前記手摺部３に対する金属製取付プレート１
Ｄ…を設け、更に、前記段部１Ａ，１Ａに固着さ
れたＬ字形の金属製プレート１Ｅ，１Ｅの長手方
向二箇所には夫々、前記フロア部F1，F2の段部
４，４に固着されたＬ字形の金属製プレート７，
７に接当可能なボルト５Ａとナツト５Ｂとからな
る不陸調整具５を設けて構成されている。 The stair slab section 1 includes the floor sections F 1 and F 2
The stepped portion 1 is placed and supported on the stepped portions 4, 4 formed in the
A, 1A, and each step forming portion 2a of the step portion 2...
A step part 1B having a substantially trapezoidal shape in side view that can be placed and supported in a horizontal or almost horizontal position on the lower surface, and a mounting hole 1C for the step part opening upward, and a step part 1B on the side where the handrail part 3 is present. A metal mounting plate 1 for the handrail portion 3 is provided on the side portion at a location corresponding to each step forming portion 2a of the step portion 2.
D... is provided, and furthermore, two L-shaped metal plates 1E, 1E fixed to the step portions 1A, 1A in the longitudinal direction are provided with step portions 4, 4 of the floor portions F 1 , F 2, respectively. fixed L-shaped metal plate 7;
7, an unevenness adjuster 5 consisting of a bolt 5A and a nut 5B that can be brought into contact with the base plate 7 is provided.
また、この階段スラブ部１には、PC鋼線６を
埋設されている。 Further, a PC steel wire 6 is buried in the stair slab portion 1.
前記踏段部２は、一段単位で複数に分割された
側面視ほぼＬ字状の段部分２Ａ…から構成されて
おり、かつ、これら各分割段部分２Ａ…の脚形成
部２ｂ…には、下方に位置する隣接分割段部２Ａ
の踏板形成部２ａに形成された孔２ｃを通して前
記階段スラブ部１の取付孔１Ｃ内に差込み固定可
能な鉄筋（差込み固定金具の一例である。）２Ｂ
を設けるとともに、最上部に位置する分割段部分
２Ａの踏板形成部２ａには、前記階段スラブ部１
の取付孔１Ｃ内に差込み固定可能なＬ字形の鉄筋
（差込み固定金具の一例である。）２B′を設けて
いる。 The step portion 2 is composed of step portions 2A that are substantially L-shaped in side view and are divided into a plurality of step units. Adjacent divided step portion 2A located at
A reinforcing bar (an example of an insertion fixture) 2B that can be inserted and fixed into the mounting hole 1C of the stair slab part 1 through the hole 2c formed in the tread forming part 2a.
In addition, the stair slab portion 1 is provided on the tread forming portion 2a of the divided step portion 2A located at the top.
An L-shaped reinforcing bar (an example of an insertion fixture) 2B' is provided which can be inserted and fixed into the mounting hole 1C.
前記手踏部３は、その上階側縦側辺部に、上層
隣接階段の階段スラブ部１に固着された金属製プ
レート１Ｆに対する取付プレート３Ａを設けると
ともに、下側横辺部には、前記階段スラブ部１と
踏段部２との間に形成される空間Ｓに差込まれる
支持部分３Ｃを、前記手摺部３の重さの一部を階
段スラブ部１上面にかける状態に突設し、更に、
前記支持部分３Ｃには、前記踏段部２の踏板形成
部２ａに対する載置支持面及び階段スラブ部１の
取付プレート１Ｄに対する連結プレート３Ｂを設
けている。 The hand tread part 3 is provided with a mounting plate 3A for the metal plate 1F fixed to the stair slab part 1 of the upper adjoining staircase on its upper floor side vertical side, and has a mounting plate 3A on its lower horizontal side. A support portion 3C inserted into the space S formed between the stair slab portion 1 and the step portion 2 is provided in a protruding manner so that a part of the weight of the handrail portion 3 is applied to the upper surface of the stair slab portion 1, Furthermore,
The support portion 3C is provided with a mounting support surface for the tread formation portion 2a of the step portion 2 and a connection plate 3B for the mounting plate 1D of the stair slab portion 1.
前記連結プレート３Ｂ…のうち、上下両側に位
置する連結プレート３Ｂ，３Ｂとこれに対応する
取付プレート１Ｄ，１Ｄとの間には夫々不陸調整
具８を設けている。 Among the connecting plates 3B..., unevenness adjusters 8 are provided between the connecting plates 3B, 3B located on both upper and lower sides and the corresponding mounting plates 1D, 1D, respectively.
前記不陸調整具８は、第４図でも示すように、
連結プレート３Ｂに固着のナツト８Ａに螺合され
る上下調節用ボルト８Ｂと取付プレート１Ｄに固
着のナツト８Ｃに螺合される左右調節用ボルト８
Ｄとから構成されている。 As shown in FIG. 4, the unevenness adjustment tool 8 is
A vertical adjustment bolt 8B is screwed into a nut 8A fixed to the connecting plate 3B, and a horizontal adjustment bolt 8 is screwed into a nut 8C fixed to the mounting plate 1D.
It is composed of D.
図面は本発明に係るプレキヤストコンクリート
製階段の実施例を示し、第１図は側面図、第２図
は斜視図、第３図は要部の拡大縦断側面図、第４
図は要部の拡大正面図である。
１……階段スラブ部、１Ｂ……段部、１Ｄ……
取付プレート、２……踏段部、２Ａ……分割段部
分、２ａ……踏板形成部、２Ｂ……固定金具、３
……手摺部、３Ａ……取付プレート、３Ｂ……連
結プレート、３Ｃ……支持部分、５，８……不陸
調整具、６……PC鋼線。
The drawings show an embodiment of the precast concrete staircase according to the present invention, in which Fig. 1 is a side view, Fig. 2 is a perspective view, Fig. 3 is an enlarged longitudinal sectional side view of main parts, and Fig. 4 is a side view.
The figure is an enlarged front view of the main parts. 1... Stair slab section, 1B... Step section, 1D...
Mounting plate, 2...Step part, 2A...Divided step part, 2a...Tread plate forming part, 2B...Fixing metal fittings, 3
... Handrail part, 3A ... Mounting plate, 3B ... Connection plate, 3C ... Support part, 5, 8 ... Unevenness adjustment tool, 6 ... PC steel wire.
Claims (1)
とが夫々各別にプレキヤストコンクリート版から
構成され、前記階段スラブ部１に、前記踏段部２
を載置支持可能な段部１Ｂと前記手摺部３に対す
る取付プレート１Ｄならびに不陸調整具５が設け
られているとともに、前記踏段部２には、前記階
段スラブ部１に対して上方から差込み固定可能な
金具２Ｂが設けられ、更に、前記手摺部３には、
上層隣接階段の階段スラブ部１に対する取付プレ
ート３Ａと、前記踏段部２の踏板形成部２ａ下面
を載置支持可能で、かつ、前記階段スラブ部１の
取付プレート１Ｄに対する連結プレート３Ｂを備
えた支持部分３Ｃならびに不陸調節具８とが設け
られているプレキヤストコンクリート製階段。 ２ 前記階段スラブ部１がPC鋼線６を埋設した
ものである特許請求の範囲第１項に記載のプレキ
ヤストコンクリート製階段。 ３ 前記踏段部２が所定段数単位で複数に分割さ
れたものであり、かつ、前記固定金具２Ｂが隣接
分割段部分２Ａ，２Ａ同志を固定連結する金具に
も兼用構成されたものである特許請求の範囲第１
項又は第２項に記載のプレキヤストコンクリート
製階段。[Claims] 1. Stair slab section 1, step section 2, and handrail section 3
are respectively constructed of precast concrete slabs, and the stair slab part 1 and the step part 2 are respectively constructed of precast concrete slabs.
A mounting plate 1D for the handrail portion 3 and an unevenness adjuster 5 are provided, and the step portion 2 is provided with a mounting plate 1B that can be placed and supported. A possible metal fitting 2B is provided, and the handrail portion 3 further includes:
A support comprising a mounting plate 3A for the stair slab part 1 of the upper adjacent staircase, and a connecting plate 3B for mounting and supporting the bottom surface of the tread forming part 2a of the step part 2 and for mounting the mounting plate 1D of the stair slab part 1. A precast concrete staircase provided with a section 3C and an unevenness adjuster 8. 2. The precast concrete staircase according to claim 1, wherein the staircase slab portion 1 has a PC steel wire 6 buried therein. 3. A patent claim in which the step portion 2 is divided into a plurality of sections each having a predetermined number of steps, and the fixing fitting 2B is also configured to serve as a fitting for fixedly connecting the adjacent divided step portions 2A, 2A. range 1
The precast concrete stairs described in item 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58160062A JPS6051253A (en) | 1983-08-30 | 1983-08-30 | Precast concrete upstairs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58160062A JPS6051253A (en) | 1983-08-30 | 1983-08-30 | Precast concrete upstairs |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6051253A JPS6051253A (en) | 1985-03-22 |
| JPH0237466B2 true JPH0237466B2 (en) | 1990-08-24 |
Family
ID=15707073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58160062A Granted JPS6051253A (en) | 1983-08-30 | 1983-08-30 | Precast concrete upstairs |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6051253A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63101631U (en) * | 1986-12-19 | 1988-07-01 | ||
| US5382925A (en) * | 1992-03-19 | 1995-01-17 | Tdk Corporation | Hybrid coupler |
| JP3717310B2 (en) * | 1998-08-27 | 2005-11-16 | 日本カイザー株式会社 | Concrete member joint structure |
-
1983
- 1983-08-30 JP JP58160062A patent/JPS6051253A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6051253A (en) | 1985-03-22 |
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