JP2013129961A - Temporary fixation method for steel staircase and pipe support for supporting steel staircase - Google Patents

Temporary fixation method for steel staircase and pipe support for supporting steel staircase Download PDF

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JP2013129961A
JP2013129961A JP2011278336A JP2011278336A JP2013129961A JP 2013129961 A JP2013129961 A JP 2013129961A JP 2011278336 A JP2011278336 A JP 2011278336A JP 2011278336 A JP2011278336 A JP 2011278336A JP 2013129961 A JP2013129961 A JP 2013129961A
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steel
support
staircase
steel staircase
pipe support
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Terumasa Hosokawa
輝正 細川
Satoru Terauchi
哲 寺内
Nozomi Shiraki
望 白木
Tomohiko Mori
朋彦 森
Seiji Nakahira
誠士 中平
Jie Zhou
潔 周
Yuri Ogawa
有理 小川
Teruji Yamazaki
輝士 山崎
Haruhisa Uchida
晴久 内田
Toshiaki Hatori
敏明 羽鳥
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Toda Corp
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Toda Corp
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Abstract

PROBLEM TO BE SOLVED: To provide an installation method that does not obstruct passage of workers in a temporary fixation method for a steel staircase of a concrete structure.SOLUTION: There is provided a temporary fixation method in a construction site for a steel staircase 3 of a concrete structure including: fixing the steel staircase 3 carried in a construction site for the steel staircase 3 at a predetermined position and fixing a lower part of the steel staircase 3 to an upper part of an existing steel staircase; arranging an upper landing 3a of the set steel staircase 3 such that a pipe support 1 for supporting a steel staircase faces in a direction orthogonal to an elevation direction of a staircase part of the steel staircase 3; engaging support metal fittings to a rib projected at a lower part of the upper landing by adjusting an up/down length of the pipe support 1; supporting the steel staircase by the pipe support 1 for supporting a steel staircase; fixing the steel staircase with the upper landing 3a of the set steel staircase 3 and a mating part for the concrete structure; and removing the support pipe 1 for supporting a steel staircase in the support state below the upper landing of the set steel staircase 3 by shortening the up/down length thereof.

Description

本発明は、鉄筋コンクリート構造物に非常用の鉄骨階段を設けるときにおける、鉄骨階段の仮止め固定方法と、鉄骨階段支持用のパイプサポートに関するものである。   The present invention relates to a method for temporarily fixing a steel staircase and a pipe support for supporting a steel staircase when an emergency steel staircase is provided in a reinforced concrete structure.

従来、鉄筋コンクリート構造物における鉄骨階段は、図６〜図８に示すように、鉄骨階段１０が階段部１１と上下位置の踊り場１２ａ，１２ｂとを一体にして形成されて、この鉄骨階段１０が現場に運搬されクレーンで吊り上げられて取付け予定部分に降ろされる。   Conventionally, as shown in FIGS. 6 to 8, a steel staircase in a reinforced concrete structure has a steel staircase 10 integrally formed with a staircase portion 11 and upper and lower landings 12a and 12b. And then lifted by a crane and lowered to a part to be installed.

鉄骨階段支持用の柱を設けないで直接に、コンクリート構造物の壁面から鉄骨階段を支持させる場合は、現場に搬入された前記鉄骨階段１０を前記コンクリート構造物１４で支持させるまでの間、枠組足場１３で支持することになる。   In the case where the steel staircase is supported directly from the wall surface of the concrete structure without providing the steel staircase supporting column, the framework is used until the steel staircase 10 carried to the site is supported by the concrete structure 14. It will be supported by the scaffold 13.

そこで、図６に示すように、上下2段に組みつけられた枠組足場１３ａ，１３ｂに支持されて鉄骨階段１０が設置され、コンクリート構造物１４側の固定金物であるファスナーとの固定と、下段で既に取り付けた鉄骨階段１０の踊り場１２ｂとの連結を図って、前記吊り降ろされた鉄骨階段１０を固定する。鉄骨階段に関する従来例として、建物の各種階高に対応して調節を可能にし、鉄骨階段の製作・組付けに手間を掛けないようにした固定方法が、特許文献１に記載のように知られている。   Therefore, as shown in FIG. 6, the steel staircase 10 is installed by being supported by the frame scaffolds 13a and 13b assembled in two upper and lower stages, and is fixed to the fastener which is a fixing hardware on the concrete structure 14 side, The steel frame staircase 10 already attached in step 1 is connected to the landing 12b, and the suspended steel frame staircase 10 is fixed. As a conventional example of a steel staircase, a fixing method that enables adjustment corresponding to various floor heights of a building and that does not require time and effort to manufacture and assemble a steel staircase is known as described in Patent Document 1. ing.

特開平０８−１７７１８９号公報JP 08-177189 A

しかし、従来の鉄骨階段の仮止め固定方法において、前記枠組足場１３は、踊り場１２ａ，１２ｂに設けられるが、前記枠組足場13の建枠１３ｃが階段部１１の進行方向に沿って平行にして立設されている。よって、図８における平面視で中央位置にある建枠１３ｃが、踊り場の通路を塞ぐ形になる。作業者等が階段部１１を上り下りするときに、作業者が階段部１１から踊り場１２ａ，１２ｂを通過する際に邪魔になる。   However, in the conventional temporary fixing method of the steel frame staircase, the frame scaffold 13 is provided on the landings 12a and 12b, but the building frame 13c of the frame scaffold 13 stands in parallel with the traveling direction of the staircase 11. It is installed. Therefore, the building frame 13c in the center position in a plan view in FIG. 8 becomes a shape that blocks the passage of the landing. When an operator or the like goes up and down the staircase portion 11, the operator gets in the way when passing the landings 12 a and 12 b from the staircase portion 11.

前記作業等者は、階段部１１に手摺等があるので踊り場を通らなければならず、建枠１３ｃの中を潜るようにして通過している。資材等を持った状態で作業者等が通過するにはきわめて不便である。また、鉄骨階段１０の組立て時の仮固定は、枠組足場１３を組むので大掛かりになって、手間と余分なコストが掛かっている。   The worker or the like has to pass through the landing because there is a handrail or the like on the staircase 11, and passes through the building frame 13c. It is extremely inconvenient for workers to pass with materials. Further, the temporary fixing at the time of assembling the steel frame staircase 10 is a large scale because the frame scaffold 13 is assembled, which takes time and extra costs.

更に、階段上の高い場所で枠組足場１３及び階段受けを組み立てるので、危険な組立作業となる。また、枠組足場１３の上に作業者が乗ってジャッキベースにより設置高さの調整を行う作業が、高所作業となってきわめて危険である。本発明に係る鉄骨階段の仮止め固定方法と鉄骨階段支持用のパイプサポートは、このような課題を解決するために提案されたものである。   Furthermore, since the frame scaffold 13 and the stairs support are assembled at a high place on the stairs, it is a dangerous assembly work. In addition, an operation in which an operator gets on the frame scaffold 13 and adjusts the installation height by the jack base is an extremely dangerous operation. The method of temporarily fixing and fixing a steel staircase and a pipe support for supporting a steel staircase according to the present invention have been proposed in order to solve such problems.

本発明に係る鉄骨階段の仮止め固定方法の上記課題を解決して目的を達成するための要旨は、コンクリート構造物における鉄骨階段の構築現場において、鉄骨階段を仮止めする固定方法であって、パイプサポートを用意するとともに、該パイプサポートの上端部に固定して取り付け、鉄骨階段の踊り場の下面に突設された補強リブに嵌合される凹部を有する支持金物を用意し、前記パイプサポートの上端部に前記支持金物を取り付けて固定して鉄骨階段支持用のパイプサポートを形成し、
鉄骨組立て現場に搬入した鉄骨階段を所定の位置にセットしてその鉄骨階段の下部を、既設の鉄骨階段の上部に固定し、前記セットした鉄骨階段の上部の踊り場を、前記鉄骨階段支持用のパイプサポートを鉄骨階段の階段部分の昇降方向に直交する方向に向けて配置するとともに、当該パイプサポートの上下長さを調節して前記支持金物を前記上部の踊り場の下部に突設されたリブに係合させて、当該鉄骨階段支持用のパイプサポートで支持させ、前記セットした鉄骨階段の上部の踊り場と前記コンクリート構造物との取合い部とで固定し、前記鉄骨階段支持用のパイプサポートをその上下長さを縮めて、前記セットした鉄骨階段の上部の踊り場の下での支持状態から撤去することである。 The gist for solving the above problems of the temporary fixing method for steel stairs according to the present invention to achieve the object is a fixing method for temporarily fixing the steel stairs in the construction site of the steel stairs in the concrete structure, A pipe support is prepared, fixedly attached to the upper end of the pipe support, and a support hardware having a recess fitted to a reinforcing rib projecting on the lower surface of the landing stage of the steel staircase is prepared. A pipe support for supporting the steel staircase is formed by attaching and fixing the support hardware to the upper end,
Set the steel staircase carried into the steel assembling site at a predetermined position, fix the lower part of the steel staircase to the upper part of the existing steel staircase, and set the landing on the upper part of the steel staircase for supporting the steel staircase The pipe support is arranged in a direction perpendicular to the ascending / descending direction of the staircase portion of the steel frame staircase, and the vertical length of the pipe support is adjusted to place the support hardware on the rib protruding from the lower part of the upper landing The steel staircase support pipe support is used, and the steel staircase support pipe support is fixed at the upper landing of the set steel staircase and the joint between the concrete structure and the steel staircase support pipe support. The vertical length is shortened to remove the support state under the landing at the upper part of the set steel stairs.

前記鉄骨階段支持用のパイプサポートは、セットした鉄骨階段の上部の踊り場の下で２本配置され、連結用の単管パイプで補強されていることを含むものである。   The pipe supports for supporting the steel stairs include two pipe supports arranged under the landing on the upper part of the set steel stairs and reinforced with a single pipe for connection.

本発明に係る鉄骨階段支持用のパイプサポートの上記課題を解決して目的を達成するための要旨は、パイプサポートと、該パイプサポートの上端部に固定して取り付けられ、鉄骨階段の踊り場の下面に突設された補強リブに嵌合される凹部を有する支持金物とでなることである。   The gist for solving the above-mentioned problems of the pipe support for supporting a steel staircase according to the present invention is as follows. The pipe support and the bottom surface of the landing stage of the steel staircase are fixedly attached to the upper end of the pipe support. And a support hardware having a recess fitted to the reinforcing rib projecting from.

前記支持金物は、取付け固定用の孔が設けられた平板体と、該平板体から一体的に突設された筒体とで構成され、補強リブに嵌合される凹部が対向配置に２箇所若しくは十字状に４箇所で、前記筒体の上部に一端側を端面に開口させて設けられていることを含むものである。   The support hardware is composed of a flat plate provided with fixing holes and a cylindrical body integrally projecting from the flat plate, and the recesses fitted to the reinforcing ribs are arranged at two locations facing each other. Or it includes that it is provided in the upper part of the said cylindrical body by making one end side open to an end surface at four places in the shape of a cross.

本発明の鉄骨階段の仮止め固定方法と、それに使用する鉄骨階段支持用のパイプサポートによれば、従来のような大掛かりな枠組足場を構築する必要がなくなり、コスト低減となる。パイプサポートにより高所作業が無くなり、作業者の安全性が確保され、鉄骨階段の支持部材の組み立て・解体が容易になる。   According to the method of temporarily fixing and fixing a steel staircase according to the present invention and the pipe support for supporting a steel staircase used in the method, it is not necessary to construct a large frame scaffold as in the prior art, thereby reducing costs. The pipe support eliminates work at heights, ensures operator safety, and facilitates assembly and disassembly of support members for steel stairs.

前記鉄骨階段支持用のパイプサポートを、鉄骨階段の階段部分の昇降方向に直交する方向に向けて配置するので通行の邪魔にならず、作業者の通行が容易になり、作業能率が向上する。更に、パイプサポートの転用が容易であり、コスト低減となる、と言う優れた効果を奏するものである。   The pipe support for supporting the steel staircase is arranged in a direction perpendicular to the ascending / descending direction of the staircase portion of the steel staircase, so that it does not obstruct the passage, and the passage of the worker is facilitated and the work efficiency is improved. Furthermore, the pipe support is easily diverted, and the excellent effect of reducing the cost is achieved.

本発明に係る鉄骨階段の仮止め固定方法にかかる実施例の側面図（Ａ）と、正面図（Ｂ）とである。It is the side view (A) and the front view (B) of the Example concerning the temporary fixing fixing method of the steel step which concerns on this invention. 同実施例における側面図の一部を拡大して示す拡大詳細側面図図である。It is an expansion detailed side view which expands and shows a part of side view in the Example. 同実施例の概略平面図である。It is a schematic plan view of the same Example. 鉄骨階段支持用のパイプサポート１における支持金物２の実施例で、丸筒体２ｇに凹部６が十字状に4箇所設けられている場合の斜視図（Ａ）と、角筒体２ｇに凹部６が十字状に4箇所設けられている場合の斜視図（Ｂ）である。In the embodiment of the support metal 2 in the pipe support 1 for supporting the steel staircase, a perspective view (A) in the case where the round cylinder 2g is provided with four recesses 6 in a cross shape, and the square cylinder 2g with the recess 6 FIG. 4B is a perspective view (B) when four are provided in a cross shape. 鉄骨階段支持用のパイプサポート１における支持金物２の実施例で、丸筒体２ｇに凹部６が対向して２箇所設けられている場合の斜視図（Ａ）と、角筒体２ｇに凹部６が対向して２箇所設けられている場合の斜視図（Ｂ）である。In the embodiment of the supporting hardware 2 in the pipe support 1 for supporting the steel staircase, a perspective view (A) in the case where the concave portion 6 is provided opposite to the round cylindrical body 2g, and the concave portion 6 in the square cylindrical body 2g. It is a perspective view (B) in case two are provided facing two. 従来例に係る鉄骨階段の仮止め固定方法を説明する側面図である。It is a side view explaining the temporary fix | fixing method of the steel step which concerns on a prior art example. 同従来例に係る鉄骨階段の仮止め固定方法を説明する平面図である。It is a top view explaining the temporary fix | fixing method of the steel step which concerns on the prior art example. 同従来例に係る鉄骨階段の仮止め固定方法を説明する正面図である。It is a front view explaining the temporary fix | fixing method of the steel step which concerns on the same prior art example.

本発明に係る鉄骨階段の仮止め固定方法は、図１（Ａ），（Ｂ）に示すように、鉄骨階段の仮止め固定方法において、パイプサポートを使用して、作業者等の通行の邪魔にならないように設置するものである。   As shown in FIGS. 1 (A) and 1 (B), the method for temporarily fixing a steel staircase according to the present invention uses a pipe support in the method for temporarily fixing a steel staircase to obstruct the passage of an operator or the like. It is installed so that it does not become.

本発明に係る鉄骨階段支持用のパイプサポート１は、図１（Ａ）に示すように、市販のパイプサポート１を使用する。このパイプサポート１は、下側の台板と該台板に立設された腰管（外管）１ａと、該腰管１ａの内部に差し込まれ上下方向の位置をねじ部で調整される差込管（内管）１ｂと、該内管１ｂの上端部に一体に設けられる受け板とでなる。前記差込管１ｂの外周面にピン穴が複数個設けられ、上下方向の位置が調整された後にピン穴に支持ピンが差し込まれて、位置固定されるようになっている。   As shown in FIG. 1 (A), a commercially available pipe support 1 is used for the steel frame staircase support pipe support 1 according to the present invention. The pipe support 1 includes a lower base plate, a lumbar tube (outer tube) 1a erected on the base plate, and a difference that is inserted into the lumbar tube 1a and whose vertical position is adjusted by a screw portion. The inlet pipe (inner pipe) 1b and a receiving plate provided integrally with the upper end of the inner pipe 1b. A plurality of pin holes are provided on the outer peripheral surface of the insertion tube 1b, and the position is fixed by inserting a support pin into the pin hole after the vertical position is adjusted.

前記パイプサポート１の受け板に、図２に示すように、鉄骨階段３の踊り場３ａの下面に突設された補強リブ３ｄに嵌合される凹部６を有する支持金物２が、４本のボルト及びナットとで固定される。前記凹部６の大きさは、補強リブ３ｄがちょうど差し込まれて無駄な隙間が無く収まるように、その幅及び深さが補強リブ３ｄより若干大きくして形成されている。一例として、幅が１０ｍｍ、深さが６０ｍｍ程度である。   As shown in FIG. 2, the support plate 2 of the pipe support 1 is provided with four support bolts having a recess 6 fitted into a reinforcing rib 3 d protruding from the lower surface of the landing 3 a of the steel staircase 3. And fixed with nuts. The size of the concave portion 6 is formed such that the width and depth thereof are slightly larger than those of the reinforcing rib 3d so that the reinforcing rib 3d is just inserted and can be accommodated without a useless gap. As an example, the width is about 10 mm and the depth is about 60 mm.

前記支持金物２は、図４（Ａ），（Ｂ）と、図５（Ａ），（Ｂ）とに示すように、前記パイプサポート１の受け板に固定するための取付け固定用の孔２ｆが設けられた平板体２ｅと、該平板体２ｅから一体的に突設された筒体２ｇとで構成されている。補強リブ３ｄに嵌合される凹部６が対向配置に２箇所、若しくは、十字状に４箇所で、前記筒体２ｇの上部に一端側を端面に開口させて設けられている。踊り場３ａの補強リブ３ｄが格子状であれば、前記凹部６を十字状にして差し込むことで、より確実に支持できるものである。   As shown in FIGS. 4 (A) and 4 (B) and FIGS. 5 (A) and 5 (B), the support hardware 2 is attached to a fixing plate 2f for fixing to the receiving plate of the pipe support 1. Is formed by a flat plate 2e provided with a cylindrical body 2g protruding integrally from the flat plate 2e. The recesses 6 fitted into the reinforcing ribs 3d are provided at two locations in an opposing arrangement, or at four locations in a cross shape, with one end side being opened at the end surface at the top of the cylindrical body 2g. If the reinforcing ribs 3d of the landing 3a are in a lattice shape, the concave portions 6 can be inserted in a cross shape so as to be supported more reliably.

上記鉄骨階段支持用のパイプサポート１を形成した後に、鉄骨階段の仮止め固定方法を施工する。これには、図１（Ａ），（Ｂ）に示すように、構築するコンクリート構造物１４における鉄骨階段３の構築現場において、鉄骨組立て現場にクレーン等で搬入した鉄骨階段３を所定の位置にセットしてその鉄骨階段３の下部の踊り場３ｃを鉄骨柱に固定する。   After the pipe support 1 for supporting the steel stairs is formed, a method for temporarily fixing the steel stairs is applied. As shown in FIGS. 1 (A) and 1 (B), at the construction site of the steel staircase 3 in the concrete structure 14 to be constructed, the steel staircase 3 carried into the steel assembly site with a crane or the like is placed at a predetermined position. Set and fix the landing 3c under the steel stairs 3 to the steel column.

前記セットした鉄骨階段３の上部の踊り場３ａを、図１（Ａ）に示すように、前記鉄骨階段支持用のパイプサポート１を鉄骨階段３の階段部分３ｂの昇降方向に直交する方向に向けて配置する。それと同時に、図２に示すように、当該パイプサポート１の上下長さを上に伸ばすように調節し、前記支持金物２を前記上部の踊り場３ａの下部に突設された補強リブ３ｄに係合させて、当該鉄骨階段支持用のパイプサポート１で支持させる。この後、前記クレーンのフック・ワイヤ等が外されて、クレーンによる鉄骨階段３の吊り下げ支持が解除される。   As shown in FIG. 1 (A), the landing stage 3a at the upper part of the set steel staircase 3 is oriented with the pipe support 1 for supporting the steel staircase in a direction orthogonal to the ascending / descending direction of the staircase portion 3b of the steel staircase 3. Deploy. At the same time, as shown in FIG. 2, the vertical length of the pipe support 1 is adjusted to extend upward, and the support hardware 2 is engaged with the reinforcing rib 3d projecting from the lower part of the upper landing 3a. Then, it is supported by the pipe support 1 for supporting the steel staircase. Thereafter, the hooks and wires of the crane are removed, and the suspension support of the steel staircase 3 by the crane is released.

前記鉄骨階段支持用のパイプサポート１は、図１（Ｂ）に示すように、セットした鉄骨階段３の上部の踊り場３ａの下で２本配置され、連結用の単管パイプである、補強部材４と筋交い４ａとで補強されている。この鉄骨階段支持用のパイプサポート１の設置位置は、図１（Ａ）に示すように、安全性を考慮して踊り場３ａの端部から稍（やや）内側に設置する。   As shown in FIG. 1 (B), the steel frame staircase support pipe support 1 is arranged at the top of the set steel staircase 3 under the landing 3a, and is a reinforcing member that is a single pipe pipe for connection. 4 and the brace 4a are reinforced. As shown in FIG. 1A, the steel staircase support pipe support 1 is installed on the inner side of the landing 3a from the end of the landing 3a in consideration of safety.

このように鉄骨階段支持用のパイプサポート１を設置したことで、図１（Ａ）に示す作業者７の約一人分の通行する空間が確保される。作業者７は、資材などを持ちながら、この踊り場を容易に通過することができるようになり、作業能率が向上するものである。   Since the pipe support 1 for supporting the steel staircase is installed in this way, a space for passing about one worker 7 shown in FIG. 1A is secured. The operator 7 can easily pass through this landing while holding materials and the like, and the work efficiency is improved.

前記セットした鉄骨階段３の上部の踊り場３ａと前記コンクリート構造物１４との取合い部におけるファスナー・ボルト・ナット等で固定する。その後は、前記鉄骨階段支持用のパイプサポート１は、不要となる。そこで、前記鉄骨階段支持用のパイプサポート１を、その上下長さを短くして（支持ピンを抜いて差込管１ｃを短縮方向へ回転させる）、前記セットした鉄骨階段３の上部の踊り場３ａの下での支持状態から撤去する。この撤去した鉄骨階段支持用のパイプサポート１は、上の階で必要となれば、転用するものである。   Fastening is performed with fasteners, bolts, nuts, and the like at the joint between the landing 3a at the top of the set steel staircase 3 and the concrete structure 14. Thereafter, the pipe support 1 for supporting the steel staircase is not necessary. Accordingly, the pipe support 1 for supporting the steel frame staircase is shortened in the vertical direction (the support pin is removed and the insertion tube 1c is rotated in the shortening direction), and the landing 3a at the top of the steel frame staircase 3 is set. Remove from the support state under. The removed pipe support 1 for supporting steel stairs is diverted if necessary on the upper floor.

このようにして、簡易な鉄骨階段支持用のパイプサポート１を形成して、作業者７の通過できる空間を確保するように、踊り場に設置するものである。   In this way, the simple pipe support 1 for supporting the steel frame staircase is formed and installed in the landing so as to secure a space through which the operator 7 can pass.

本発明に係る鉄骨階段支持用のパイプサポートは、鉄骨階段の支持に適用されるが、支持金物に嵌合するリブ等を有した適宜な係止部があれば、他の部材の支持にも適用することができるものである。   The pipe support for supporting a steel staircase according to the present invention is applied to support a steel staircase. However, if there is an appropriate locking portion having a rib or the like that fits to a support hardware, it can also support other members. It can be applied.

１ 鉄骨階段支持用のパイプサポート、
１ａ 腰管（外管）、 １ｃ 差込管（内管）、
２ 支持金物、
２ａ〜２ｄ 支持金物、 ２ｅ 平板体、
２ｆ 孔、 ２ｇ 筒体、
３ 鉄骨階段、 ３ａ 踊り場、
３ｂ 階段部分、 ３ｃ 踊り場、
３ｄ 補強リブ、
４ 補強部材、 ４ａ 筋交い、
５ 既設の鉄骨階段、
６ 凹部、
７ 作業者、
１０ 鉄骨階段、
１１ 階段部分、
１２ａ，１２ｂ 踊り場、
１３，１３ａ，１３ｂ 枠組足場、
１３ｃ 建枠、
１４ コンクリート構造物。 1 Pipe support for supporting steel stairs,
1a Lumbar tube (outer tube), 1c Plug-in tube (inner tube),
2 Support hardware,
2a-2d support metal, 2e flat plate,
2f hole, 2g cylinder,
3 Steel stairs, 3a landing,
3b Stair part, 3c landing,
3d reinforcing ribs,
4 reinforcement members, 4a bracing,
5 Existing steel stairs,
6 recess,
7 workers,
10 Steel stairs,
11 Stair part,
12a, 12b landing,
13, 13a, 13b framework scaffold,
13c building frame,
14 Concrete structure.

Claims (4)

コンクリート構造物における鉄骨階段の構築現場において、鉄骨階段を仮止めする固定方法であって、
パイプサポートを用意するとともに、
該パイプサポートの上端部に固定して取り付け、鉄骨階段の踊り場の下面に突設された補強リブに嵌合される凹部を有する支持金物を用意し、
前記パイプサポートの上端部に前記支持金物を取り付けて固定して鉄骨階段支持用のパイプサポートを形成し、
鉄骨組立て現場に搬入した鉄骨階段を所定の位置にセットしてその鉄骨階段の下部を、既設の鉄骨階段の上部に固定し、
前記セットした鉄骨階段の上部の踊り場を、前記鉄骨階段支持用のパイプサポートを鉄骨階段の階段部分の昇降方向に直交する方向に向けて配置するとともに、当該パイプサポートの上下長さを調節して前記支持金物を前記上部の踊り場の下部に突設されたリブに係合させて、当該鉄骨階段支持用のパイプサポートで支持させ、
前記セットした鉄骨階段の上部の踊り場と前記コンクリート構造物との取合い部とで固定し、
前記鉄骨階段支持用のパイプサポートをその上下長さを縮めて、前記セットした鉄骨階段の上部の踊り場の下での支持状態から撤去すること、
を特徴とする鉄骨階段の仮止め固定方法。 At the construction site of steel stairs in a concrete structure, a fixing method for temporarily fixing the steel stairs,
With pipe support,
Fixing and attaching to the upper end of the pipe support, preparing a support hardware having a recess fitted to the reinforcing rib protruding from the lower surface of the landing stage of the steel stairs,
A pipe support for supporting a steel staircase is formed by attaching and fixing the support hardware to the upper end of the pipe support,
Set the steel staircase carried into the steel assembly site in place and fix the lower part of the steel staircase to the upper part of the existing steel staircase,
The landing stage at the upper part of the set steel stairs is arranged with the pipe support for supporting the steel stairs facing in the direction perpendicular to the ascending / descending direction of the stair part of the steel stairs, and the vertical length of the pipe support is adjusted. Engage the support hardware with a rib projecting from the lower landing of the upper landing, and support the steel staircase support pipe support,
Fix at the landing on the upper part of the set steel stairs and the joint with the concrete structure,
Removing the pipe support for supporting the steel stairs from the support state under the landing at the upper part of the set steel stairs, reducing the vertical length thereof;
A method for temporarily fixing a steel staircase. 鉄骨階段支持用のパイプサポートは、セットした鉄骨階段の上部の踊り場の下で２本配置され、連結用の単管パイプで補強されていること、
を特徴とする請求項１に記載の鉄骨階段の仮止め固定方法。 Two pipe supports for supporting the steel stairs are placed under the landing at the top of the set steel stairs and reinforced with a single pipe for connection.
The method for temporarily fixing a steel staircase according to claim 1. パイプサポートと、
該パイプサポートの上端部に固定して取り付けられ、鉄骨階段の踊り場の下面に突設された補強リブに嵌合される凹部を有する支持金物とでなること、
を特徴とする鉄骨階段支持用のパイプサポート。 Pipe support,
It is fixedly attached to the upper end portion of the pipe support, and is composed of a support hardware having a recess fitted to a reinforcing rib projecting on the lower surface of the landing stage of the steel staircase,
Pipe support for steel staircase support. 支持金物は、取付け固定用の孔が設けられた平板体と、該平板体から一体的に突設された筒体とで構成され、補強リブに嵌合される凹部が対向配置に２箇所若しくは十字状に４箇所で、前記筒体の上部に一端側を端面に開口させて設けられていること、
を特徴とする請求項３に記載の鉄骨階段支持用のパイプサポート。 The support hardware is composed of a flat plate provided with fixing holes and a cylindrical body integrally projecting from the flat plate, and the recesses fitted to the reinforcing ribs are arranged in two opposing positions or At four locations in a cross shape, provided at the top of the cylinder with one end open on the end face;
A pipe support for supporting a steel staircase according to claim 3.
JP2011278336A 2011-12-20 2011-12-20 Temporary fixation method for steel staircase and pipe support for supporting steel staircase Pending JP2013129961A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104481167A (en) * 2014-09-27 2015-04-01 叶长青 High-formwork construction method for miscellaneous fill ground
CN104675144A (en) * 2015-02-10 2015-06-03 成都绿迪科技有限公司 Support frame of steel structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104481167A (en) * 2014-09-27 2015-04-01 叶长青 High-formwork construction method for miscellaneous fill ground
CN104675144A (en) * 2015-02-10 2015-06-03 成都绿迪科技有限公司 Support frame of steel structure

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