JPH04371649A - Method for erecting staircase of structural steel - Google Patents
Method for erecting staircase of structural steelInfo
- Publication number
- JPH04371649A JPH04371649A JP3177483A JP17748391A JPH04371649A JP H04371649 A JPH04371649 A JP H04371649A JP 3177483 A JP3177483 A JP 3177483A JP 17748391 A JP17748391 A JP 17748391A JP H04371649 A JPH04371649 A JP H04371649A
- Authority
- JP
- Japan
- Prior art keywords
- landing
- staircase
- steel
- floor slab
- floor
- 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
- 238000000034 method Methods 0.000 title claims abstract description 19
- 229910000746 Structural steel Inorganic materials 0.000 title abstract 4
- 239000004567 concrete Substances 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 82
- 239000010959 steel Substances 0.000 claims description 82
- 238000009415 formwork Methods 0.000 claims description 13
- 238000010276 construction Methods 0.000 abstract description 13
- 230000003014 reinforcing effect Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000009194 climbing Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Landscapes
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Steps, Ramps, And Handrails (AREA)
Abstract
Description
【0001】0001
【産業上の利用分野】本発明は、鉄骨階段の建て込み方
法に関し、詳しくは、床スラブをコンクリートの現場打
ちによって構築する建物に、段床部分の上下両側に夫々
踊り場部分を有する半階高分の鉄骨階段によって構成さ
れる中間踊り場を備えた折り返し式の鉄骨階段を建て込
む方法に関するものである。[Industrial Application Field] The present invention relates to a method for constructing steel-framed stairs, and more specifically, to a building in which a floor slab is constructed by pouring concrete on-site, the present invention relates to a method of constructing a steel-frame staircase with a half-story height, which has landings on both the upper and lower sides of a stepped floor. The present invention relates to a method of constructing a folding steel staircase with an intermediate landing formed by a steel staircase.
【0002】0002
【従来の技術】床スラブをコンクリートの現場打ちによ
るRC造とした建物において、中間踊り場を備えた折り
返し式の鉄骨階段を建て込む場合、従来では、次のよう
な施工手順が採られていた。BACKGROUND OF THE INVENTION When constructing a folding steel staircase with an intermediate landing in a reinforced concrete building with a floor slab cast on site, the following construction procedure has conventionally been adopted.
【0003】即ち、予め、階段用開口を形成するように
床スラブの型枠を組んでコンクリートを打設し、それよ
って上側の床スラブを構築した後、下側の床スラブに組
み付ける下側の半階高分の鉄骨階段をクレーンで吊り下
げて上側の床スラブの階段用開口を通して挿入し、その
下側の鉄骨階段の下側踊り場部分をアンカーボルトによ
って下側の床スラブに組み付ける。[0003] That is, a formwork for a floor slab is constructed in advance to form an opening for stairs, and concrete is poured. After the upper floor slab is constructed, the lower floor slab is assembled to the lower floor slab. A half-story steel staircase is suspended by a crane and inserted through the stair opening in the upper floor slab, and the lower landing part of the lower steel staircase is assembled to the lower floor slab using anchor bolts.
【0004】しかる後、上側の床スラブに組み付ける上
側の半階高分の鉄骨階段をクレーンで吊り下げて前記階
段用開口を通して挿入し、その上側の鉄骨階段の下側踊
り場部分を下側の鉄骨階段の上側踊り場部分と連接して
中間踊り場を構成すると共に、上側の鉄骨階段の上側踊
り場部分をアンカーボルトによって上側の床スラブに組
み付け、これらを順に繰り返すことにより鉄骨階段を建
て込んでいた。[0004] Thereafter, the upper half-story steel staircase to be assembled to the upper floor slab is suspended by a crane and inserted through the stairway opening, and the lower landing portion of the upper steel staircase is attached to the lower steel frame. In addition to connecting the upper landing of the staircase to form an intermediate landing, the upper landing of the upper steel staircase was assembled to the upper floor slab using anchor bolts, and these steps were repeated in order to build the steel staircase.
【0005】しかしながら、上記の建て込み方法による
場合は、建物の周囲に外部足場を設けておかないと、床
スラブの型枠工事が完了した時点で、型枠上に昇り降り
するための作業通路がなくなることになり、外部足場が
必要不可欠とされていた。しかも、この場合、外部足場
に設けられた狭い作業通路を通って型枠上に昇り降りす
ることになるため、資材の運搬等に不便であった。[0005] However, when using the above construction method, if external scaffolding is not provided around the building, once the formwork work for the floor slab is completed, there will be a work path for climbing up and down the formwork. External scaffolding was considered essential. Moreover, in this case, the workers had to climb up and down the formwork through a narrow working path provided on the external scaffolding, which was inconvenient for transporting materials.
【0006】更に、上記の方法では、段床部分とその上
下両側に設けれた踊り場部分とから構成された鉄骨階段
を上側の床スラブに形成した狭い階段用開口を通して挿
入しなければならないため、挿入しづらくて作業に手間
を要する欠点があり、また、挿入の際に鉄骨階段を開口
の周囲に衝突させ、鉄骨階段や躯体を傷付ける虞があっ
た。Furthermore, in the above method, the steel staircase, which is composed of a step floor section and landing sections provided above and below it, must be inserted through a narrow staircase opening formed in the upper floor slab. It has the disadvantage that it is difficult to insert and requires time and effort, and there is also a risk that the steel staircase will collide with the surroundings of the opening during insertion, causing damage to the steel staircase and the structure.
【0007】尚、RC造の建物において、階段室だけを
S造とすることにより、床スラブの型枠工事に先行して
鉄骨階段を建て込み、鉄骨階段を作業通路として利用す
ることが可能であるが、これによる場合は、低コスト化
を意図して建物をRC造としているにもかかわらず、鉄
骨使用量が多くなって、工費が高く付くことになる。[0007] In addition, in an RC building, by making only the stairway of the S structure, it is possible to erect steel-frame stairs prior to floor slab form work and use the steel-frame stairs as a work passage. However, in this case, even though the building is made of RC with the intention of reducing costs, the amount of steel used will increase, resulting in high construction costs.
【0008】[0008]
【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、その目的とするところは、鉄
骨階段を容易かつ安全に建て込むことができ、しかも、
鉄骨階段を床スラブの配筋やコンクリート打設等に際し
て作業通路として利用できるようにした工期の短縮、工
費の低減をも図り得る鉄骨階段の建て込み方法を提供す
ることにある。[Problems to be Solved by the Invention] The present invention has been made with the above-mentioned points in mind, and its purpose is to enable steel-frame stairs to be built easily and safely, and to
To provide a method for constructing steel-frame stairs that can shorten the construction period and reduce construction costs by allowing the steel-frame stairs to be used as a work passage during floor slab reinforcement, concrete pouring, etc.
【0009】[0009]
【課題を解決するための手段】上記の課題を解決するた
めに、本発明が講じた技術的手段は次の通りである。即
ち、本発明による鉄骨階段の建て込み方法は、床スラブ
の型枠工事に先立って、既に構築された下階の床スラブ
に組み付けた第1の鉄骨階段の上側踊り場部分に第2の
鉄骨階段の下側踊り場部分を連接して中間踊り場を構成
すると共に、第2の鉄骨階段の上側踊り場部分と当該上
側踊り場部分に連ねる第3の鉄骨階段の下側踊り場部分
とを前記床スラブに連なる下階踊り場に立設した仮設支
持体で支持し、しかる後、前記第2の鉄骨階段の上側踊
り場部分と第3の鉄骨階段の下側踊り場部分とで構成さ
れた上階踊り場に連なる床スラブの型枠工事を行うこと
を特徴としている。[Means for Solving the Problems] The technical means taken by the present invention to solve the above problems are as follows. That is, in the method for constructing a steel-frame staircase according to the present invention, a second steel-frame staircase is installed on the upper landing portion of a first steel-frame staircase that has been assembled to an already constructed floor slab on the lower floor, prior to the floor slab formwork work. The lower landing portions of the stairs are connected to form an intermediate landing, and the upper landing portion of the second steel stairway and the lower landing portion of the third steel stairway connected to the upper landing portion are connected to the lower landing portion of the second steel stairway that connects to the floor slab. The floor slab is supported by a temporary support installed on the floor landing, and then connected to the upper floor landing, which is composed of the upper landing part of the second steel staircase and the lower landing part of the third steel staircase. It is characterized by performing formwork work.
【0010】尚、前記中間踊り場については、階段室の
うち一側部にのみ、つまり、中間踊り場が存在する側に
のみ立設された鉄骨柱で支持する場合と、前記仮設支持
体と同様な仮設支持体を下階の中間踊り場に立設し、こ
の仮設支持体で上階の中間踊り場を支持した状態でRC
造壁のコンクリートを打設し、当該RC造壁に中間踊り
場を組み付けるようにする場合とがある。[0010] Regarding the intermediate landing, there are two cases in which it is supported by a steel column erected only on one side of the stairwell, that is, only on the side where the intermediate landing exists, and a case in which it is supported by a steel column that is erected only on the side where the intermediate landing exists, and there are two cases in which it is supported by a steel column erected only on the side where the intermediate landing exists. A temporary support is erected on the intermediate landing on the lower floor, and RC is carried out with this temporary support supporting the intermediate landing on the upper floor.
In some cases, concrete for the wall is poured and an intermediate landing is assembled to the RC wall.
【0011】[0011]
【作用】上記の構成によれば、コンクリートを打設しよ
うとする最上階部分において、既にコンクリートを打設
して構築された床スラブに組み付けられた第1の鉄骨階
段に第2の鉄骨階段を先組みし、その先組みした第2の
鉄骨階段、および、それに連なる第3の鉄骨階段を仮設
支持体によって支持し、しかる後、床スラブの型枠工事
、配筋作業、コンクリート打設を行い、先組みした第2
および第3の鉄骨階段を床スラブと一体化することにな
る。[Operation] According to the above configuration, on the top floor where concrete is to be poured, the second steel staircase is attached to the first steel staircase that has been assembled to the floor slab that has already been poured with concrete. The pre-assembled second steel staircase and the third steel staircase connected to it are supported by temporary supports, and then the floor slab formwork, reinforcement work, and concrete pouring are carried out. , the second pre-assembled
and a third steel staircase will be integrated with the floor slab.
【0012】0012
【実施例】図1および図2は本発明に係る鉄骨階段の建
て込み方法の一実施例を示す施工手順の説明図、図3は
要部の一部切欠拡大側面図、図4は要部の斜視図である
。先ず、これらの図を用いて鉄骨階段の建て込み方法の
一例を説明する。[Example] Figures 1 and 2 are explanatory diagrams of the construction procedure showing an example of the method of building a steel staircase according to the present invention, Figure 3 is an enlarged partially cutaway side view of the main part, and Figure 4 is the main part. FIG. First, an example of how to build a steel staircase will be explained using these figures.
【0013】図1の(a)に示すように、既に構築され
たRC造の床スラブ1のうちの最上階の床スラブ1aに
は、段床部分とその上下両側に設けられた踊り場部分と
から構成された半階高分の第1の鉄骨階段2が、その下
側の踊り場部分2aを前記床スラブ1aの階段室B側端
部に位置するRC造の梁3にアンカーボルト4により固
定された状態で組み付けられている。第1の鉄骨階段2
の上側の踊り場部分2bは、下方から2層分ずつ順次継
ぎ足して延ばされている鉄骨柱5に連結されて支持され
ている。As shown in FIG. 1(a), the top floor slab 1a of the already constructed RC floor slabs 1 has a stepped floor portion and landing portions provided on both upper and lower sides thereof. A first steel staircase 2 with a half-story height, consisting of It is assembled in the same condition. 1st steel staircase 2
The upper landing portion 2b is connected to and supported by a steel column 5 which is extended by adding two layers in sequence from below.
【0014】その第1の鉄骨階段2の横側上方に、図1
の(b)、図3、図4に示すように、同様な構成よりな
る半階分の第2の鉄骨階段6をクレーン等(図示せず)
により吊り下げて搬入すると共に、その下側の踊り場部
分6aを、第1の鉄骨階段2の上側の踊り場部分2bの
横側に位置させる状態で鉄骨柱5に連結し、この鉄骨柱
5を介して、第2の鉄骨階段6の下側の踊り場部分6a
を第1の鉄骨階段2の上側の踊り場部分2bに連接して
、中間踊り場A1 を構成する。Above the side of the first steel staircase 2, there is a
As shown in (b), FIGS. 3 and 4, the second half-story steel staircase 6 with a similar configuration is moved by a crane or the like (not shown).
At the same time, the lower landing part 6a is connected to the steel column 5 with the lower landing part 6a located on the side of the upper landing part 2b of the first steel staircase 2, The lower landing part 6a of the second steel staircase 6
is connected to the upper landing part 2b of the first steel staircase 2 to form an intermediate landing A1.
【0015】図において、24は鉄骨柱5,5間に架設
された鉄骨梁、25…は鉄骨梁24に取り付けられたA
LC版であり、階段室BとエレベーターシャフトCとを
区画する耐火壁を構成している。26…は鉄骨柱5や鉄
骨梁24に溶接されたガセットプレートであり、前記鉄
骨階段2や鉄骨階段6は、これらのガセットプレート2
6…に両側のささら桁15…をボルト・ナット27…で
連結するように構成されている。In the figure, 24 is a steel beam installed between the steel columns 5, 5, and 25... is a steel beam attached to the steel beam 24.
It is an LC version and constitutes a fireproof wall that partitions the staircase B and the elevator shaft C. 26 are gusset plates welded to the steel columns 5 and the steel beams 24, and the steel stairs 2 and the steel stairs 6 are made of these gusset plates 2.
6 and the stringers 15 on both sides are connected with bolts and nuts 27.
【0016】一方、図1の(c)に示すように、最上階
の床スラブ1aに連なる下階踊り場F1 に仮設支持体
7を立設し、この仮設支持体7で第2の鉄骨階段6の上
側の踊り場部分6bを支持する。On the other hand, as shown in FIG. 1(c), a temporary support 7 is erected on the lower landing F1 connected to the floor slab 1a on the top floor, and this temporary support 7 supports the second steel staircase 6. supports the upper landing portion 6b.
【0017】更に、図2の(a)に示すように、鉄骨柱
5に延長用の鉄骨柱5aを継ぎ足し、そこに同様な構成
よりなる半階高分の第3の鉄骨階段8をクレーン等(図
示せず)で吊り下げて搬入し、その下側の踊り場部分8
aを前記仮設支持体7に支持させると共に、上側の踊り
場部分8bを延長用の鉄骨柱5aに連結し、第3の鉄骨
階段8の下側踊り場部分8aと第2の鉄骨階段6の上側
踊り場部分6bとを互いに連接して上階踊り場F2 を
構成する。Furthermore, as shown in FIG. 2(a), an extension steel column 5a is added to the steel column 5, and a third steel staircase 8 having a similar configuration and having a half-story height is added thereto using a crane or the like. (not shown) and carry it in, and the lower landing part 8
a is supported by the temporary support 7, and the upper landing part 8b is connected to the extension steel column 5a, and the lower landing part 8a of the third steel staircase 8 and the upper landing of the second steel staircase 6 are connected. The upper floor landing F2 is constructed by connecting the portions 6b and 6b to each other.
【0018】そして、これらの上側踊り場部分6bおよ
び下側踊り場部分8aにそれぞれアンカーボルト9…を
取り付けておくと共に、前記上階踊り場F2(上側踊り
場部分6bおよび下側踊り場部分8a)に連なる床スラ
ブ用型枠および梁用型枠(図示せず)を組み付け、これ
らの型枠内に配筋およびコンクリート打設を行って、図
2の(b)に示すように、床スラブ10および梁30を
構築する。床スラブ10の構築後には、仮設支持体7は
撤去し、上階へと転用していく。Anchor bolts 9 are attached to these upper landing portions 6b and lower landing portions 8a, respectively, and a floor slab connected to the upper landing F2 (upper landing portion 6b and lower landing portion 8a) is attached. The floor slab 10 and the beam 30 are assembled as shown in FIG. 2(b). To construct. After the floor slab 10 is constructed, the temporary support 7 is removed and used for the upper floor.
【0019】次いで、構築した床スラブ10を最上階の
床スラブ1aとすると共に、第3の鉄骨階段8を第1の
鉄骨階段2として、前述同様の手順を繰り返し、順次、
鉄骨階段を上方に建て込んでいくのである。Next, the constructed floor slab 10 is used as the top floor slab 1a, and the third steel stairway 8 is used as the first steel stairway 2, and the same procedure as described above is repeated, in order:
A steel staircase will be built upwards.
【0020】次に、上述した鉄骨階段の建て込み方法に
用いた仮設支持体7について説明しておく。図3および
図5〜図7に示すように、(但し、分かりやすくするた
めに、図4では、第2および第3の鉄骨階段6,8それ
ぞれの段床部分を図面上省略している。)仮設支持体7
は、一対の仮設支柱11,11の上部に仮設梁12をピ
ン13で連結すると共に、一対のターンバックル式のブ
レース14,14をX字状に取り付けて構成され、第2
および第3の鉄骨階段6,8それぞれの踊り場部分6a
,8aの両側のささら桁15…の下向き端面を仮設梁1
2に当接させて支持させるようになっている。Next, the temporary support 7 used in the above-mentioned method of building a steel frame staircase will be explained. As shown in FIG. 3 and FIGS. 5 to 7, (however, in FIG. 4, the step floor portions of the second and third steel stairs 6 and 8 are omitted from the drawing for clarity. ) Temporary support 7
is constructed by connecting a temporary beam 12 to the upper part of a pair of temporary supports 11, 11 with a pin 13, and attaching a pair of turnbuckle type braces 14, 14 in an X-shape.
and landing portions 6a of each of the third steel stairs 6 and 8
, 8a on both sides of the stringers 15...
2 to be brought into contact with and supported.
【0021】仮設梁12上には、補助支柱16,16を
介してチャンネル状の当て板17,17が設けられ、こ
の当て板17,17で踊り場部分6a,8aの裏面に設
けられた複数の補強リブ18,18の下向き端面を支持
するようになっている。チャンネル状の当て板17とし
ては、中央の水平板部を補強リブ18,18の下向き端
面に当接させるものでも、両側の立ち上がり板部の端面
を補強リブ18,18の下向き端面に当接させるもので
もよい。Channel-shaped backing plates 17, 17 are provided on the temporary beam 12 via auxiliary supports 16, 16, and these backing plates 17, 17 are used to connect a plurality of It supports the downward end surfaces of the reinforcing ribs 18, 18. The channel-shaped backing plate 17 may be one in which the central horizontal plate portion is in contact with the downward end surfaces of the reinforcing ribs 18, 18, or the end surfaces of the rising plate portions on both sides are in contact with the downward end surfaces of the reinforcing ribs 18, 18. It can be anything.
【0022】仮設支柱11,11それぞれは、下側支柱
19と上側支柱20とを、図7に示すように、4本のア
ジャストボルト21…により長さを調節可能に連結して
構成されている。下側支柱19の下部は、床スラブ1a
側に設けられたプレート22上に載置支持されている。
このプレート22を下側支柱19に一体連接しておいて
もよい。上側支柱20の上部の横一側面に溶接によりブ
ラケット23が突設され、このブラケット23に仮設梁
12を前記ピン13で連結するようになっている。Each of the temporary columns 11, 11 is constructed by connecting a lower column 19 and an upper column 20 so that their lengths can be adjusted using four adjustment bolts 21, as shown in FIG. . The lower part of the lower support 19 is a floor slab 1a.
It is mounted and supported on a plate 22 provided on the side. This plate 22 may be integrally connected to the lower support column 19. A bracket 23 is welded to protrude from one horizontal side of the upper part of the upper support column 20, and the temporary beam 12 is connected to this bracket 23 by the pin 13.
【0023】尚、上記の実施例では、階段室Bとエレベ
ーターシャフトCを区画する耐火壁がALC版で構成さ
れ、これらのALC版の取付けに必要な鉄骨梁24…を
支持するために設けられた継ぎ足し式の鉄骨柱5を利用
して、中間踊り場A1 を支持するように構成したが、
階段室Bの中間踊り場A1 が存在する側の壁もコンク
リートの現場打ちによるRC造壁である場合には、中間
踊り場A1 を次のようにして支持することになる。[0023] In the above embodiment, the fireproof wall that partitions the staircase B and the elevator shaft C is made of ALC plates, and is provided to support the steel beams 24 necessary for installing these ALC plates. It was configured to support the intermediate landing A1 using additional steel columns 5.
If the wall on the side where the intermediate landing A1 of the staircase room B exists is also an RC wall made of cast-in-place concrete, the intermediate landing A1 will be supported as follows.
【0024】即ち、図8に示すように、前記仮設支持体
7と同じ構造の仮設支持体7Aを、先行して構築された
下階の中間踊り場A0 に立設し、この仮設支持体7A
によって、第2の鉄骨階段6の下側の踊り場部分6aと
これに連接した第1の鉄骨階段2の上側の踊り場部分2
bとで構成された中間踊り場A1 を支持し、この状態
で壁用の型枠工事、配筋工事、コンクリート打設を行っ
てRC造壁Dを構築し、この構築されたRC造壁Dにア
ンカーボルト28…を介して中間踊り場A1 を組み付
けるのである。That is, as shown in FIG. 8, a temporary support 7A having the same structure as the above-mentioned temporary support 7 is erected on the intermediate landing A0 of the lower floor constructed previously, and this temporary support 7A is
The lower landing portion 6a of the second steel staircase 6 and the upper landing portion 2 of the first steel staircase 2 connected thereto.
Support the intermediate landing A1 consisting of B and B, and in this state perform wall formwork work, reinforcing work, and concrete pouring to construct the RC wall D. The intermediate landing A1 is assembled via the anchor bolts 28.
【0025】尚、仮設支持体7AはRC造壁Dのコンク
リートに所定の強度が発現した時点で撤去され、上階へ
と転用されることになる。第3の鉄骨階段8の下側の踊
り場部分8aを第2の鉄骨階段6の上側の踊り場部分6
bに連接しても、必要な剛性と強度が得られない場合は
、図8に示すように、中間踊り場A1の上にも同様な構
造を有する別の仮設支持体7Bを立設し、この仮設支持
体7Bで第3の鉄骨階段8の上側の踊り場部分8bを支
持すればよい。[0025] The temporary support 7A will be removed when the concrete of the RC wall D has developed a predetermined strength, and will be used for the upper floor. The lower landing portion 8a of the third steel staircase 8 is replaced with the upper landing portion 6a of the second steel staircase 6.
If the necessary rigidity and strength cannot be obtained even by connecting to the intermediate landing A1, as shown in FIG. The upper landing portion 8b of the third steel staircase 8 may be supported by the temporary support body 7B.
【0026】[0026]
【発明の効果】以上のように、本発明によれば、床スラ
ブの型枠工事に先行して鉄骨階段を建て込むため、型枠
上での配筋作業やコンクリート打設等に際して鉄骨階段
を作業通路として利用することができ、建物周囲の外部
足場を省略することが可能であり、しかも、従来のよう
な床スラブに形成した狭い階段用開口を通じて鉄骨階段
を挿入する場合に比して、鉄骨階段の建て込みを広い作
業空間で容易かつ安全に行え、鉄骨階段の衝突による躯
体の損傷もなくなり、工期の短縮、工費の低減を図る上
でも非常に有効である。[Effects of the Invention] As described above, according to the present invention, in order to erect a steel-framed staircase prior to the formwork work for a floor slab, the steel-framed staircase is installed during reinforcing work on the formwork, concrete pouring, etc. It can be used as a working passageway, and external scaffolding around the building can be omitted, compared to the conventional case where steel stairs are inserted through narrow stair openings formed in the floor slab. Steel staircases can be easily and safely erected in a large work space, and there is no damage to the structure due to collisions with steel staircases, which is extremely effective in shortening construction time and reducing construction costs.
【図1】本発明に係る鉄骨階段の建て込み方法の一実施
例を示す施工手順の説明図である。FIG. 1 is an explanatory diagram of a construction procedure showing an embodiment of a method for building a steel staircase according to the present invention.
【図2】図1に続く施工手順の説明図である。FIG. 2 is an explanatory diagram of the construction procedure following FIG. 1.
【図3】要部の一部切欠拡大側面図である。FIG. 3 is a partially cutaway enlarged side view of the main part.
【図4】要部の斜視図である。FIG. 4 is a perspective view of main parts.
【図5】要部の正面図である。FIG. 5 is a front view of main parts.
【図6】要部の平面図である。FIG. 6 is a plan view of main parts.
【図7】要部の横断平面図である。FIG. 7 is a cross-sectional plan view of main parts.
【図8】本発明の他の実施例を示す要部の一部切欠拡大
側面図である。FIG. 8 is a partially cutaway enlarged side view of a main part showing another embodiment of the present invention.
1a…床スラブ、2…第1の鉄骨階段、2a…下側踊り
場部分、6…第2の鉄骨階段、6a…下側踊り場部分、
6b…上側踊り場部分、7…仮設支持体、8…第3の鉄
骨階段、8a…下側踊り場部分、F1 …下階踊り場、
F2…上階踊り場、A1 …中間踊り場。1a...floor slab, 2...first steel staircase, 2a...lower landing part, 6...second steel staircase, 6a...lower landing part,
6b... Upper landing part, 7... Temporary support, 8... Third steel staircase, 8a... Lower landing part, F1... Lower floor landing,
F2...Upper landing, A1...Middle landing.
Claims (3)
構築された下階の床スラブ1aに組み付けた第1の鉄骨
階段2の上側踊り場部分2bに第2の鉄骨階段6の下側
踊り場部分6aを連接して中間踊り場A1 を構成する
と共に、第2の鉄骨階段6の上側踊り場部分6bと当該
上側踊り場部分6bに連ねる第3の鉄骨階段8の下側踊
り場部分8aとを前記床スラブ1aに連なる下階踊り場
F1 に立設した仮設支持体7で支持し、しかる後、前
記第2の鉄骨階段6の上側踊り場部分6bと第3の鉄骨
階段8の下側踊り場部分8aとで構成された上階踊り場
F2 に連なる床スラブの型枠工事を行うことを特徴と
する鉄骨階段の建て込み方法。Claim 1: Prior to the floor slab formwork work, a lower landing portion of the second steel staircase 6 is attached to the upper landing portion 2b of the first steel staircase 2 assembled to the already constructed floor slab 1a of the lower floor. The sections 6a are connected to form an intermediate landing A1, and the upper landing section 6b of the second steel staircase 6 and the lower landing section 8a of the third steel staircase 8 connected to the upper landing section 6b are connected to the floor slab. The lower floor landing F1 connected to 1a is supported by an erected temporary support 7, and then the upper landing part 6b of the second steel staircase 6 and the lower landing part 8a of the third steel staircase 8 are constructed. A method for constructing a steel-framed staircase, which is characterized by performing formwork work for a floor slab connected to an upper floor landing F2.
の一側部にのみ立設された鉄骨柱5で支持することを特
徴とする請求項1に記載の鉄骨階段の建て込み方法。2. The method of building a steel staircase according to claim 1, wherein the intermediate landing A1 is supported by a steel column 5 erected only on one side of the staircase chamber.
り場A0 に立設した仮設支持体7Aで支持した状態で
RC造壁のコンクリートを打設し、当該RC造壁に中間
踊り場A1 を組み付けるようにしたことを特徴とする
請求項1に記載の鉄骨階段の建て込み方法。3. Concrete for the RC wall is poured while the intermediate landing A1 is supported by a temporary support 7A erected on the intermediate landing A0 on the lower floor, and the intermediate landing A1 is assembled to the RC wall. The method of building a steel staircase according to claim 1, characterized in that:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP03177483A JP3115908B2 (en) | 1991-06-21 | 1991-06-21 | How to build steel stairs |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP03177483A JP3115908B2 (en) | 1991-06-21 | 1991-06-21 | How to build steel stairs |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH04371649A true JPH04371649A (en) | 1992-12-24 |
JP3115908B2 JP3115908B2 (en) | 2000-12-11 |
Family
ID=16031699
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP03177483A Expired - Fee Related JP3115908B2 (en) | 1991-06-21 | 1991-06-21 | How to build steel stairs |
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Country | Link |
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JP (1) | JP3115908B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100487893B1 (en) * | 2002-08-10 | 2005-05-03 | 대림산업 주식회사 | System and method of precasted concrete staircase |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102211218B1 (en) * | 2018-11-02 | 2021-02-03 | (주)연우피씨엔지니어링 | A Construction Method for Pre-Constructing Staircase and Constructing Materials Used therein |
-
1991
- 1991-06-21 JP JP03177483A patent/JP3115908B2/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100487893B1 (en) * | 2002-08-10 | 2005-05-03 | 대림산업 주식회사 | System and method of precasted concrete staircase |
Also Published As
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JP3115908B2 (en) | 2000-12-11 |
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