JP3671061B2 - Suspension staircase and its temporary method - Google Patents

Suspension staircase and its temporary method Download PDF

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JP3671061B2
JP3671061B2 JP00841594A JP841594A JP3671061B2 JP 3671061 B2 JP3671061 B2 JP 3671061B2 JP 00841594 A JP00841594 A JP 00841594A JP 841594 A JP841594 A JP 841594A JP 3671061 B2 JP3671061 B2 JP 3671061B2
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stair
unit
staircase
suspension
suspended
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JPH07217230A (en
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進 三田
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日工株式会社
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Description

【0001】
【産業上の利用分野】
本発明は、建築現場の構築体に沿って上部から吊り下げるようにして仮設する吊り階段及びその仮設方法に関する。
【0002】
【従来の技術】
従来、建築現場で使用される吊り階段として、例えば特開昭57−116870号公報に開示されているように、踊り場に一層分の階段を備えた階段ユニットを複数基チェーンにより一定の間隔を開けて連結して所定の長さの吊り階段とし、構築物に沿わせて吊り下げるようにしたものがある。
【0003】
【発明が解決しようとする課題】
しかしながら、上記従来の吊り階段のようにチェーンにより吊り下げるようにしたものでは、吊り階段全体の剛性が乏しく左右上下に揺れ易く、構築物に沿って多数の揺れ止めを施す必要がある。
【0004】
また、港湾の埋め立て工事等では海水を抜き取るにしたがって順次下方に足場を構築していくような工事があり、ここでは階段を下方に向けて簡単に継ぎ足すことのできる吊り階段が望まれている。
【0005】
本発明は上記の点に鑑み、適度な剛性を有し、組み立て及び階段の継ぎ足しが容易にできるようにした吊り階段及びその仮設方法を提供することを目的とする。
【0006】
【課題を解決するための手段】
本発明は上記の目的を達成するために、請求項1記載の吊り階段は、建築現場などの構築体に沿って上部から吊り下げるようにして仮設する吊り階段において、門型をした一対の階段枠を所定間隔を設けて対向させ、対向する階段枠の間に補強材を配設して階段枠を自立させると共に、対向する階段枠の間に階段を掛け渡してクレーンにて吊り下げ可能なように一体化して階段ユニットを形成し、複数の前記階段ユニットをクレーンにてユニット単位で積み重ねて管体連結具により上下に連結し、連結した階段ユニットを階段ユニット取付け手段によって階段吊下げ用受梁に取り付けて吊り下げる一方、吊り下げた階段ユニットに新たに階段ユニットを継ぎ足す時には、地上にて別途組み立てた階段ユニットを階段吊下げ用受梁に取り付けた階段ユニットの上位に積み重ねて管体連結具により連結し、連結して一体となった階段ユニットをクレーンにより吊り上げて支持しながら階段吊下げ用受梁に階段ユニットを固定している階段ユニット取付け手段を解除し、一体となった階段ユニットを積み重ねた分だけ降下させた後、再び階段ユニット取付け手段によって階段ユニットを階段吊下げ用受梁に固定するように構成したことを特徴としている。
【0007】
また、請求項2記載の吊り階段の仮設方法は、内部に階段を内装した階段ユニットを上下に連結して階段吊下げ用受梁より吊り下げた吊り階段において、
吊り下げた階段ユニットに新たに階段ユニットを継ぎ足す時に、地上にて別途組み立てた階段ユニットを階段吊下げ用受梁に取り付けた階段ユニットの上位に積み重ねて連結し、連結して一体となった階段ユニットをクレーンにより吊り上げて支持しながら階段吊下げ用受梁に階段ユニットを固定している階段ユニット取付け手段を解除し、一体となった階段ユニットを積み重ねた分だけ降下させた後、再び階段ユニット取付け手段によって階段ユニットを階段吊下げ用受梁に固定するようにしたことを特徴としている。
【0008】
【作用】
本発明の請求項1記載の吊り階段によれば、対向させた一対の門型の階段枠を自立するように補強材により補強し、この階段枠の間に階段を掛け渡してクレーンにて吊り下げ可能なように一体化して階段ユニットを形成し、複数の前記階段ユニットをクレーンにてユニット単位で積み重ねて管体連結具により上下に連結し、更に連結した階段ユニットを階段吊下げ用受梁に階段ユニット取付け手段により固定して吊り下げる一方、階段ユニットを継ぎ足す時には、別途組み立てた階段ユニットを階段吊下げ用受梁に取り付けた階段ユニットの上位に積み重ねて管体連結具により連結し、一体となった階段ユニットをクレーンにより吊り上げて支持しながら階段吊下げ用受梁に階段ユニットを固定している階段ユニット取付け手段を解除し、一体となった階段ユニットを積み重ねた分だけ降下させた後、再び階段ユニット取付け手段によって階段ユニットを階段吊下げ用受梁に固定するように構成したので、吊り階段に剛性を持たせることができ、左右及び上下の揺れを少なくすることができ、しかも組み立て式のユニットをクレーンにてユニット単位で積み重ねて連結するだけで吊り階段を形成することができるので吊り階段を迅速に構築することができ、また上記一連の操作によって容易に階段ユニットを継ぎ足すことができて工事の進行に迅速に対応することができる。
【0009】
また、請求項2記載の吊り階段の仮設方法によれば、工事の進行に伴う構築物の高さや深さの変化に応じて階段ユニットを継ぎ足す時には、別途組み立てた階段ユニットを吊り上げて階段吊下げ用受梁に吊り下げた階段ユニットの上位に移送する。そして、管体連結具によって階段吊下げ用受梁側の階段ユニット上部とその上位に移送した階段ユニット下部とを連結し、移送した別の階段ユニットを吊り上げたままで階段吊下げ用受梁に固定している階段ユニット取付け手段を解除する。そして吊り上げている階段ユニットを連結した階段ユニット分だけ降下させ、再び階段吊下げ用受梁に階段ユニットを階段ユニット取付け手段により固定する。こうした一連の操作によって容易に階段ユニットを継ぎ足すことができて工事の進行に迅速に対応することができる。
【0010】
【実施例】
以下本発明の実施例を図面に基づいて説明する。
【0011】
図1は本発明吊り階段の一実施例を示す斜視図であって、組み立て式の階段ユニット1を上下に複数基連結して所定高さの階段を形成する一方、構築物(図示せず)に階段吊下げ用受梁2を配設し、該階段吊下げ用受梁2に階段ユニット取付け手段である階段ユニット固定金具3によって前記階段を取り付けて吊り下げたものである。
【0012】
この吊り階段を形成する階段ユニット1について図2〜図4に基づいて詳しく説明すると、4は階段ユニット1の基礎枠であって、該基礎枠4は横桟5を一対平行に並べると共に、それぞれの横桟5の両端側面部に所定長さの短管からなる連結管6を上下両端部を開放状態として立設し、更に対向する連結管6同士を水平管7により連結し、四隅に連結管6を有した枠体に構成している。
【0013】
そして前記基礎枠4を2個を所定の間隔を設けて並置し、この対向する基礎枠4の内側に面する連結管6には門型の階段枠8の建地8aを、また外側に位置する連結管6には逆門型の手摺枠9の建地9aを、管体連結具10により連結して図4に示すようにボルト・ナット等の締結具11により締結する。このとき管体連結具10は連結管6に対して着脱可能としたものでも良いし、また予め連結管6に固着して連結管6と一体としたものでも良い。
【0014】
次に、上部水平材12と下部水平材13との間に二本の斜材14を固着した筋交15を形成し、図4に示すように、筋交15の下部水平材13の両端部を対向するそれぞれの基礎枠4の内側に位置する横桟5の端部に重ね、下部水平材13の端部と横桟5端部に穿設した透孔に挿通状にボルト16を挿入し、ナット17により締結する。
【0015】
前記上部水平材12には階段枠8及び手摺枠9のそれぞれの建地8a、9aとの交叉部分にクランプ18が固着してあり、該クランプ18によってそれぞれの建地8a、9aを掴むようにして階段枠8及び手摺枠9と筋交15とを固着し、対向する両基礎枠4及び各基礎枠4に立設した階段枠8及び手摺枠9とを一体としている。
【0016】
このように基礎枠4と階段枠8及び手摺枠9を筋交15により一体化することによりこれらの組み合わせに適度な剛性を与えている。
【0017】
そして一体化された階段枠8及び手摺枠9の内、対向する階段枠8の間には階段19を掛け渡し、また基礎枠4の内、階段19の下位部分に臨む基礎枠4には足場板20を敷設して踊り場を形成して一層分の階段ユニット1を形成する。
【0018】
この階段ユニット1を図5に示すように上下に配置すると、上位に位置する階段ユニット1の基礎枠4に配設した連結管6下端部と、下位に位置する階段ユニット1の階段枠8及び手摺枠9のそれぞれの建地8a、9a上端部とが対向するようになり、この連結管6と建地8a、9aとを管体連結具10によって連結することによって上下の階段ユニット1が一体化される。そして複数基の階段ユニット1を順次連結していけば所定高さの吊り階段を仮設することができるのである。
【0019】
ここでも上下に配置した階段ユニット1同士を管体連結具10により連結することで複数の階段ユニット1により構築される吊り階段の剛性を確保するようにしている。
【0020】
次に、本発明の吊り階段を構築物に沿って吊り下げる手順を図6〜図10に基づいて説明する。
【0021】
先ず、図6に示すように吊り階段を設置しようとする構築物の上部付近に吊り階段を吊り下げる階段吊下げ用受梁2を二本配設する。
【0022】
そして吊り階段の設置場所付近の地上にて工事現場に搬入した吊り階段の各部材を組み合わせて階段ユニット1を組み立てる。その手順は、図2〜図4に基づいて前述した通りである。
【0023】
この階段ユニット1の筋交15の上部水平材12に階段ユニット固定金具3を取付け、クレーンにより吊り上げて階段を吊設する位置に配設した二本の受梁2の上位に移送し、階段ユニット1を二本の受梁2の間に挿入するようにして吊り降ろす。そして図7に示すように、階段ユニット1の上部水平材12に取付けた階段ユニット固定金具3を受梁2上に載置してボルト・ナット等の締結具で固定する。
【0024】
この時、予め地上にて階段ユニット1を何段にも連結しておき、その最上部の上部水平材12に階段ユニット固定金具3を取付け、この階段ユニットを一度に受梁2に吊り下げるようにしても良い。
【0025】
次に、受梁2に吊り下げている階段ユニット1に別の階段ユニット1´を追加して階段の段数を増やす場合について説明する。
【0026】
先ず、地上にて別の階段ユニット1´を組み立て、それを図8に示すように、クレーンにて吊り上げて受梁2に吊り下げた階段ユニット1の上位に移送する。
【0027】
この時、階段の方向が互いに同方向とならないように上位の階段ユニット1´を下位の階段ユニット1に対して180度回転させる。そして下位の階段ユニット1の階段枠8及び手摺枠9の建地8a、9aと上位の階段ユニット1´の連結管6とを管体連結具10によって連結する。
【0028】
そして上下の階段ユニット1´、1の連結が完了すると、図9に示すように、上位の階段ユニット1´をクレーンによって吊り上げた状態で受梁2に固定した階段ユニット固定金具3を取り外して上位の階段ユニット1´の上部水平材12に先程取り外した階段ユニット固定金具3を取り付ける。
【0029】
そして図10に示すように階段ユニット1´、1を降下させて上位の階段ユニット1´に取り付けた階段ユニット固定金具3を受梁2の上に載置して受梁2に固定する。
【0030】
このようにして、階段吊下げ用受梁2に吊り下げている吊り階段に別の階段ユニットを順次継ぎ足して吊り階段の段数を増加していくのである。なお、追加する別の階段ユニットを一段として説明したが、追加する別の階段ユニットを予め何段にも連結しておいても良い。
【0031】
【発明の効果】
以上のように本発明の請求項1記載の吊り階段にあっては、対向させた一対の門型の階段枠8を筋交15等によって自立させて階段19を掛け渡してクレーンにて吊り下げ可能なように一体化して階段ユニット1を形成し、この階段ユニット1をクレーンにてユニット単位で積み重ねて管体連結具10によって上下に連結し、これを階段吊り下げ用受梁2に階段ユニット固定金具3を介して吊り下げて固定する一方、階段ユニットを継ぎ足す時には、別途組み立てた階段ユニット1´を階段吊下げ用受梁2に取り付けた階段ユニット1の上位に積み重ねて管体連結具10により連結し、一体となった階段ユニットをクレーンにより吊り上げて支持しながら階段吊下げ用受梁2に階段ユニットを固定している階段ユニット固定金具3を解除し、一体となった階段ユニットを積み重ねた分だけ降下させた後、再び階段ユニット固定金具3によって階段ユニットを階段吊下げ用受梁2に固定するように構成したので、階段ユニット1はもとより、これを連結した吊り階段も簡単に組み立てることができ、手間のかからない迅速な仮設、及び階段の継ぎ足しを容易に行なうことができる。また、それらに適度な剛性を持たせることができ、仮設時の左右上下の揺れが少なくなり、更には、ばらばらに解体できて輸送、保管にも便利である。
【0032】
また、請求項2記載の吊り階段の仮設方法にあっては、吊り下げた階段ユニット1に新たに階段ユニット1´を継ぎ足す時に、別途地上にて階段ユニット1´を組み立て、それを階段吊下げ用受梁2に取り付けた階段ユニット1の上位に積み重ねて連結し、連結して一体となった階段ユニットをクレーンにより吊り上げて階段ユニットを積み重ねた分だけ降下させるようにして下方への階段の継ぎ足しを行うようにしたので、吊り階段における階段の継ぎ足しを容易に、かつ安全に行なうことができる。
【図面の簡単な説明】
【図1】本発明に係る吊り階段の一実施例を示す斜視図である。
【図2】図1の階段ユニット部分の斜視図である。
【図3】図2の一部省略した分解図である。
【図4】図2の要部拡大図である。
【図5】階段ユニットの連結の様子を示す説明図である。
【図6】本発明に係る吊り階段の仮設手順を示す説明図である。
【図7】本発明に係る吊り階段の仮設手順を示す説明図である。
【図8】本発明に係る吊り階段の仮設手順を示す説明図である。
【図9】本発明に係る吊り階段の仮設手順を示す説明図である。
【図10】本発明に係る吊り階段の仮設手順を示す説明図である。
【符号の説明】
1、1´…階段ユニット 2…階段吊下げ用受梁
3…階段ユニット固定金具(階段ユニット取付け手段)
4…基礎枠 8…階段枠
10…管体連結具 15…筋交
19…階段
[0001]
[Industrial application fields]
The present invention relates to a suspension staircase that is temporarily installed so as to be suspended from an upper part along a construction body at a construction site, and a temporary method thereof.
[0002]
[Prior art]
Conventionally, as a suspension staircase used at a construction site, for example, as disclosed in Japanese Patent Application Laid-Open No. 57-116870, a stair unit having a stair for one layer at a landing is opened at a certain interval by a plurality of chains. Are connected to form a suspension staircase of a predetermined length and suspended along the structure.
[0003]
[Problems to be solved by the invention]
However, in the case of being suspended by a chain as in the conventional suspension staircase, the entire suspension staircase has poor rigidity and easily swings from side to side and up and down, and it is necessary to provide a large number of vibration stoppers along the structure.
[0004]
In addition, there is a construction in which a scaffold is constructed in the downward direction as seawater is extracted in port reclamation work, etc. Here, a suspended staircase that can be easily added with the stairs downward is desired. .
[0005]
The present invention has been made in view of the above points, and an object thereof is to provide a suspended staircase having a suitable rigidity and capable of easily assembling and adding a staircase and a temporary method thereof.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, according to the present invention, the suspension staircase according to claim 1 is a pair of staircases having a gate shape in a suspension staircase that is temporarily suspended from a top along a construction body such as a construction site. The frames are opposed to each other with a predetermined interval, and a stiffening frame is provided between the opposed staircase frames so that the staircase frames can stand on their own. In this way, a stair unit is formed, and a plurality of the stair units are stacked on a unit basis by a crane and are connected up and down by a pipe connector, and the connected stair units are received by the stair unit attachment means for stair suspension. while hanging attached to the beam, to when annex the newly stairs unit on the stairs unit suspended, was fitted with a separately assembled stairs unit on the ground to the stairs hanging for receiving beam Stair unit mounting means that is stacked on the upper part of the step unit and connected by a tube connector, and the stair unit is fixed to the beam for hanging the stair while supporting the united stair unit by lifting it with a crane. Is released, the integrated stair unit is lowered by the stacked amount, and then the stair unit is fixed to the stair suspension receiving beam again by the stair unit mounting means .
[0007]
Moreover, the temporary construction method of the suspension staircase according to claim 2 is a suspension staircase in which a staircase unit having a staircase inside is connected vertically and suspended from a stairway suspension beam.
When a new stair unit is added to the suspended stair unit, the stair unit separately assembled on the ground is stacked and connected to the upper part of the stair unit attached to the receiving beam for stair suspension, and they are joined together. Release the stair unit mounting means that fixes the stair unit to the beam for hanging the stair while supporting the stair unit by lifting it with a crane. It is characterized in that the stair unit is fixed to the stair suspension receiving beam by the unit mounting means.
[0008]
[Action]
According to the suspension staircase of the first aspect of the present invention, the pair of opposed gate-type staircase frames are reinforced by the reinforcing material so as to be self-supporting, and the stairs are suspended between the staircase frames and suspended by the crane. It is integrated so that it can be lowered to form a stair unit, and a plurality of the stair units are stacked in units by a crane and are connected up and down with a pipe connector. When the stairs unit is added and suspended, the separately assembled stairs unit is stacked on the upper part of the stairs unit attached to the stairs suspension beam, and connected by the pipe connector. While lifting and supporting the integrated stair unit with a crane, release the stair unit mounting means that secures the stair unit to the receiving beam for hanging the stair. After dropping only amount to stacking the stairs units became, and then, is fixed to the receiving beam for suspended stairs stairs unit again by a staircase unit mounting means can have a stiffness in the hanging stairs, Left and right and up and down swings can be reduced, and a suspension staircase can be formed quickly by simply assembling unit units by stacking and connecting units in a crane unit . In addition, the stair unit can be easily added by the series of operations described above, and the progress of the construction can be quickly handled.
[0009]
Moreover, according to the temporary construction method of the suspended staircase according to claim 2, when the stair unit is added according to the change in the height or depth of the structure as the construction progresses, the separately assembled stair unit is lifted to suspend the staircase. Transfer to the upper part of the stair unit hung on the receiving beam. Then, the upper part of the stair unit on the stair suspension receiving beam side and the lower part of the stair unit transferred to the upper part are connected by the pipe connector, and the other stair unit transferred is fixed to the stair suspension receiver while being lifted. Release the stairs unit mounting means. Then, the suspended stair unit is lowered by the amount of the connected stair unit, and the stair unit is fixed to the stair suspension receiving beam again by the stair unit mounting means. By such a series of operations, the stair unit can be easily added, and the progress of the construction can be quickly handled.
[0010]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
[0011]
FIG. 1 is a perspective view showing an embodiment of the suspension staircase of the present invention. A plurality of assembly-type staircase units 1 are connected in the vertical direction to form a staircase having a predetermined height, while a structure (not shown) is used. A stair suspension receiving beam 2 is provided, and the staircase is attached to the stair suspension suspension beam 2 by a stair unit fixing bracket 3 which is a stair unit attachment means.
[0012]
The stair unit 1 that forms the suspension staircase will be described in detail with reference to FIGS. 2 to 4. Reference numeral 4 denotes a base frame of the stair unit 1, and the base frame 4 has a pair of horizontal rails 5 arranged in parallel, A connecting pipe 6 consisting of a short pipe of a predetermined length is erected on both side surfaces of the horizontal rail 5 with the upper and lower ends open, and the opposing connecting pipes 6 are connected by horizontal pipes 7 and connected to the four corners. A frame having a tube 6 is formed.
[0013]
The two base frames 4 are juxtaposed at a predetermined interval, and the building pipe 8 facing the inner side of the opposing base frame 4 is located on the building 8a of the gate-shaped step frame 8 and on the outer side. The building 9a of the reverse-gate-type handrail frame 9 is connected to the connecting pipe 6 by a pipe connector 10 and fastened by a fastener 11 such as a bolt and a nut as shown in FIG. At this time, the tube connector 10 may be detachable from the connecting tube 6, or may be fixed to the connecting tube 6 in advance and integrated with the connecting tube 6.
[0014]
Next, a bracing 15 in which two diagonal members 14 are fixed is formed between the upper horizontal member 12 and the lower horizontal member 13, and both ends of the lower horizontal member 13 of the bracing 15 are formed as shown in FIG. Are bolted to the end of the horizontal beam 5 located inside each of the foundation frames 4 facing each other, and the bolt 16 is inserted in a through hole formed in the end of the lower horizontal member 13 and the end of the horizontal beam 5. The nut 17 is used for fastening.
[0015]
The upper horizontal member 12 has clamps 18 fixed to the intersections of the staircase frame 8 and the handrail frame 9 with the respective building sites 8a and 9a, and the staircase 18 is held by the clamps 18 so as to hold the respective building sites 8a and 9a. The frame 8 and the handrail frame 9 and the bracing 15 are fixed, and the opposed base frames 4 and the staircase frame 8 and the handrail frame 9 erected on each base frame 4 are integrated.
[0016]
Thus, by combining the base frame 4, the staircase frame 8, and the handrail frame 9 by the bracing 15, an appropriate rigidity is given to these combinations.
[0017]
Of the integrated staircase frame 8 and handrail frame 9, a staircase 19 is spanned between the opposing staircase frames 8, and the base frame 4 facing the lower part of the staircase 19 in the base frame 4 is a scaffold. The board 20 is laid down to form a landing, and the stairs unit 1 for one layer is formed.
[0018]
When the stair unit 1 is arranged up and down as shown in FIG. 5, the lower end of the connecting pipe 6 disposed on the base frame 4 of the upper stair unit 1 and the stair frame 8 of the lower stair unit 1 and The upper and lower stairs units 1 are united by connecting the connecting pipe 6 and the building areas 8a and 9a with the tube connecting tool 10 so that the upper ends of the building areas 8a and 9a of the handrail frame 9 are opposed to each other. It becomes. If a plurality of staircase units 1 are sequentially connected, a suspended staircase having a predetermined height can be temporarily installed.
[0019]
Also here, the stair units 1 arranged up and down are connected to each other by the tube connector 10 to ensure the rigidity of the suspended staircase constructed by the plurality of stair units 1.
[0020]
Next, a procedure for suspending the suspension staircase of the present invention along the structure will be described with reference to FIGS.
[0021]
First, as shown in FIG. 6, two stair suspension receiving beams 2 that suspend the suspension staircase are disposed near the upper portion of the structure on which the suspension staircase is to be installed.
[0022]
Then, the stair unit 1 is assembled by combining the members of the suspended staircase carried into the construction site on the ground near the installation location of the suspended staircase. The procedure is as described above with reference to FIGS.
[0023]
The stair unit fixing bracket 3 is attached to the upper horizontal member 12 of the bracing 15 of the stair unit 1 and is lifted by a crane and transferred to the upper part of the two receiving beams 2 arranged at the position where the stair is hung. 1 is hung so as to be inserted between the two receiving beams 2. Then, as shown in FIG. 7, the stair unit fixing bracket 3 attached to the upper horizontal member 12 of the stair unit 1 is placed on the receiving beam 2 and fixed with fasteners such as bolts and nuts.
[0024]
At this time, the stair unit 1 is connected to the ground in advance in a number of steps, and the stair unit fixing bracket 3 is attached to the upper horizontal member 12 at the top, so that the stair unit is suspended from the receiving beam 2 at a time. Anyway.
[0025]
Next, a case where another stair unit 1 ′ is added to the stair unit 1 suspended from the receiving beam 2 to increase the number of steps of the stair will be described.
[0026]
First, another stair unit 1 'is assembled on the ground, and it is lifted by a crane and transferred to the upper level of the stair unit 1 suspended from the receiving beam 2 as shown in FIG.
[0027]
At this time, the upper stair unit 1 ′ is rotated 180 degrees with respect to the lower stair unit 1 so that the directions of the stairs are not the same. Then, the staircase frame 8 of the lower staircase unit 1 and the building sites 8 a and 9 a of the handrail frame 9 and the connecting pipe 6 of the upper staircase unit 1 ′ are connected by the pipe body connector 10.
[0028]
When the connection of the upper and lower stair units 1 ′ and 1 is completed, as shown in FIG. 9, the upper stair unit 1 ′ is lifted by a crane and the stair unit fixing bracket 3 fixed to the receiving beam 2 is removed and the upper stair unit 1 ′ is removed. The stair unit fixing bracket 3 removed previously is attached to the upper horizontal member 12 of the stair unit 1 '.
[0029]
Then, as shown in FIG. 10, the stair unit 1 ′, 1 is lowered and the stair unit fixing bracket 3 attached to the upper stair unit 1 ′ is placed on the receiving beam 2 and fixed to the receiving beam 2.
[0030]
In this way, the number of steps of the suspended staircase is increased by sequentially adding another staircase unit to the suspended staircase suspended from the staircase-suspending receiving beam 2. Although another step unit to be added has been described as one stage, another step unit to be added may be connected in advance to any number of steps.
[0031]
【The invention's effect】
As described above, in the suspension staircase according to the first aspect of the present invention, the pair of gate-shaped staircase frames 8 facing each other are self-supported by the bracing 15 or the like, and the staircase 19 is stretched and suspended by the crane. The stair unit 1 is formed by integrating as much as possible, and the stair unit 1 is stacked in units by a crane and is connected up and down by a tube connector 10, and this is connected to the receiving beam 2 for hanging the stair unit. While suspending and fixing through the fixing bracket 3, when adding a stair unit, a separately assembled stair unit 1 ′ is stacked on top of the stair unit 1 attached to the stair suspension member 2 to connect the pipe body 10, and the stair unit fixing bracket 3 that fixes the stair unit to the stair suspension suspension beam 2 while lifting and supporting the integrated stair unit by a crane is released. After lowering by the amount of stacking the stairs units became body, and then, is fixed to the lower for receiving beam 2 suspended stairs stairs unit by stairway unit fixing bracket 3 again, stair unit 1 as well, this The coupled suspension stairs can be easily assembled , and quick temporary construction that does not require much time and the addition of stairs can be easily performed . In addition, they can be provided with an appropriate rigidity, so that there is less left-right and up-and-down shaking during temporary installation, and furthermore, they can be disassembled apart and are convenient for transportation and storage.
[0032]
Further, in the temporary construction method for the suspended staircase according to claim 2, when the stair unit 1 'is newly added to the suspended stair unit 1, the stair unit 1' is separately assembled on the ground and the stair unit is suspended. coupled stacked on top of stairs unit 1 attached to the lower for receiving beam 2, linked to the stairs downward so as to lower by the amount of stacking the stairs unit lifted by crane stairs units together Since the extension is performed, it is possible to easily and safely add the stairs in the suspended stairs.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of a hanging staircase according to the present invention.
FIG. 2 is a perspective view of the staircase unit portion of FIG.
FIG. 3 is an exploded view of FIG. 2 partially omitted.
4 is an enlarged view of a main part of FIG.
FIG. 5 is an explanatory diagram showing a state of connection of stair units.
FIG. 6 is an explanatory diagram showing a temporary procedure for a suspended staircase according to the present invention.
FIG. 7 is an explanatory diagram showing a temporary procedure for a suspended staircase according to the present invention.
FIG. 8 is an explanatory diagram showing a temporary procedure for a suspended staircase according to the present invention.
FIG. 9 is an explanatory diagram showing a temporary procedure for a suspended staircase according to the present invention.
FIG. 10 is an explanatory diagram showing a temporary procedure for a suspended staircase according to the present invention.
[Explanation of symbols]
1, 1 '... Stair unit 2 ... Stair suspension beam 3 ... Stair unit fixing bracket (Stair unit mounting means)
4 ... Foundation frame 8 ... Stair frame 10 ... Tube connector 15 ... Bracing 19 ... Stair

Claims (2)

  1. 建築現場などの構築体に沿って上部から吊り下げるようにして仮設する吊り階段において、門型をした一対の階段枠を所定間隔を設けて対向させ、対向する階段枠の間に補強材を配設して階段枠を自立させると共に、対向する階段枠の間に階段を掛け渡してクレーンにて吊り下げ可能なように一体化して階段ユニットを形成し、複数の前記階段ユニットをクレーンにてユニット単位で積み重ねて管体連結具により上下に連結し、連結した階段ユニットを階段ユニット取付け手段によって階段吊下げ用受梁に取り付けて吊り下げる一方、吊り下げた階段ユニットに新たに階段ユニットを継ぎ足す時には、地上にて別途組み立てた階段ユニットを階段吊下げ用受梁に取り付けた階段ユニットの上位に積み重ねて管体連結具により連結し、連結して一体となった階段ユニットをクレーンにより吊り上げて支持しながら階段吊下げ用受梁に階段ユニットを固定している階段ユニット取付け手段を解除し、一体となった階段ユニットを積み重ねた分だけ降下させた後、再び階段ユニット取付け手段によって階段ユニットを階段吊下げ用受梁に固定するように構成したことを特徴とする吊り階段。In a suspended staircase that is temporarily suspended from the top along a construction body such as a construction site, a pair of gate-shaped staircase frames are opposed to each other with a predetermined interval, and a reinforcing material is disposed between the opposed staircase frames. The staircase frame is set up to be self-supporting, and the staircase is spanned between the opposing staircase frames and integrated so that it can be suspended by a crane to form a staircase unit. They are stacked in units and connected up and down with pipe connectors, and the connected stair units are attached to and suspended from the stair suspension suspension beam by means of stair unit attachment, while a new stair unit is added to the suspended stair unit. At times, stair units assembled separately on the ground are stacked on top of the stair unit attached to the stair suspension support beam, and connected by a pipe connector. The stair unit mounting means for fixing the stair unit to the receiving beam for hanging the staircase was released while supporting the stair unit that became a body by lifting it with a crane, and the integrated stair unit was lowered by the amount stacked. A suspension staircase, wherein the staircase unit is again fixed to the stairway suspension receiving beam by means of the staircase unit attachment means .
  2. 内部に階段を内装した階段ユニットを上下に連結して階段吊下げ用受梁より吊り下げた吊り階段において、吊り下げた階段ユニットに新たに階段ユニットを継ぎ足す時に、地上にて別途組み立てた階段ユニットを階段吊下げ用受梁に取り付けた階段ユニットの上位に積み重ねて連結し、連結して一体となった階段ユニットをクレーンにより吊り上げて支持しながら階段吊下げ用受梁に階段ユニットを固定している階段ユニット取付け手段を解除し、一体となった階段ユニットを積み重ねた分だけ降下させた後、再び階段ユニット取付け手段によって階段ユニットを階段吊下げ用受梁に固定するようにしたことを特徴とする吊り階段の仮設方法。  Stairs that are separately assembled on the ground when a new stair unit is added to a suspended stair unit in a suspended staircase that is suspended from a staircase suspension beam by connecting stair units with interior staircases up and down. The unit is stacked and connected to the upper part of the stair unit attached to the stair suspension support beam, and the stair unit is fixed to the stair suspension support beam while supporting the united stair unit by lifting it with a crane. The stair unit mounting means is released, the integrated stair unit is lowered by the amount stacked, and then the stair unit is fixed to the stair suspension suspension beam again by the stair unit mounting means. Temporary method of hanging stairs.
JP00841594A 1994-01-28 1994-01-28 Suspension staircase and its temporary method Expired - Lifetime JP3671061B2 (en)

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JP00841594A JP3671061B2 (en) 1994-01-28 1994-01-28 Suspension staircase and its temporary method

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Application Number Priority Date Filing Date Title
JP00841594A JP3671061B2 (en) 1994-01-28 1994-01-28 Suspension staircase and its temporary method

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JP3671061B2 true JP3671061B2 (en) 2005-07-13

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011080276A (en) * 2009-10-08 2011-04-21 Nikko Co Ltd Method of installing suspended staircase
CN103628700A (en) * 2013-11-08 2014-03-12 中天建设集团有限公司 Detachable stairway for construction

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