JPH11166323A - Construction method for rc molded frame installed in building - Google Patents
Construction method for rc molded frame installed in buildingInfo
- Publication number
- JPH11166323A JPH11166323A JP33441097A JP33441097A JPH11166323A JP H11166323 A JPH11166323 A JP H11166323A JP 33441097 A JP33441097 A JP 33441097A JP 33441097 A JP33441097 A JP 33441097A JP H11166323 A JPH11166323 A JP H11166323A
- Authority
- JP
- Japan
- Prior art keywords
- building
- gantry
- frame
- construction
- concrete
- 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.)
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- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、建屋内に収納され
る大型のＲＣ（鉄筋コンクリート）造架台の構築法に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a large RC (reinforced concrete) frame to be housed in a building.
【０００２】[0002]
【従来の技術】火力発電所等の発電施設では大型タービ
ンが建屋内に収納された状態で設置されており、そのタ
ービンを据え付けるために大きな強度を備えた大型架台
が設けられる。この大型架台はＲＣ造で構築され、建屋
の底盤から一体に構築されて大重量のタービンを確実に
支持できるようになっている。このため、上記タービン
架台の配筋構造が著しく大型化し、この架台配筋を構成
するために支柱や横架材等の骨組みおよび横架材を支持
するための支保工等が必要となる。2. Description of the Related Art In a power generation facility such as a thermal power plant, a large turbine is installed in a state of being housed in a building, and a large gantry having high strength is provided for installing the turbine. This large gantry is constructed of RC and is integrally constructed from the bottom of the building so that a heavy turbine can be reliably supported. For this reason, the rebar arrangement structure of the turbine mount is remarkably large, and in order to form the rebar arrangement, it is necessary to provide a framework such as a column or a lateral member and a support for supporting the lateral member.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、かかる
従来のＲＣ造のタービン架台にあっては、大型であるた
めこの架台を構築するための工期が著しく長期化され、
建屋の構築と平行して架台を構築することが望ましい
が、この大型架台工事ではコンクリート打設が現場打ち
であり、その平面ブロック割りやリフト割りが建物本体
と異なったり、横架材のための重量支保工の架設が必要
となるため、該架台の構築を建物躯体工事の施工速度に
合わせることが著しく困難になる。従って、かかる大型
のタービン架台は建物躯体の工事完了後に施工されるこ
とが余儀なくされ、架台工事が建屋内作業となるため、
建屋の既存部分が工事進行の障害になってしまう。However, such a conventional RC turbine frame is large in size, so that the construction period for constructing the frame is significantly prolonged.
It is desirable to build a gantry in parallel with the construction of the building.However, in this large gantry construction, concrete casting is cast in place, and the plane block split and lift split are different from the building body, and Since the erection of the weight support is required, it is extremely difficult to match the construction of the gantry with the construction speed of the building frame work. Therefore, it is inevitable that such a large turbine mount will be installed after the construction of the building frame is completed, and the mount work will be performed inside the building.
The existing part of the building is an obstacle to the progress of construction.
【０００４】このような条件の下でタービン架台の工期
を短縮する方策として、横架材の重量支保工を廃止して
打込みトラスを利用した無支保工法が試みられている
が、上述したように工事着手時期が建物躯体完了後であ
るため、大幅な工期短縮に寄与することができないとい
う課題があった。[0004] Under these conditions, as a measure to shorten the construction period of the turbine mount, an unsupported construction method using a driving truss by abolishing the weight support of the horizontal member has been attempted, as described above. Since the construction was started after the completion of the building frame, there was a problem that it was not possible to significantly reduce the construction period.
【０００５】そこで、本発明はかかる従来の課題に鑑み
て、建屋内に大型架台を構築するにあたって大型架台の
工事を建屋の構築と平行して進行できるように工夫する
ことにより、建屋を含めた全体工期の大幅な短縮化を達
成することができる建屋内に設置されるＲＣ造架台の構
築法を提供することを目的とする。In view of the above-mentioned problems, the present invention includes a building by constructing a large gantry in a building so that the construction of the large gantry can proceed in parallel with the construction of the building. An object of the present invention is to provide a method of constructing an RC gantry that is installed in a building that can significantly shorten the entire construction period.
【０００６】[0006]
【課題を解決するための手段】かかる目的を達成するた
めに請求項１に示す本発明の建屋内に設置されるＲＣ造
架台の構築法は、建屋内に収納される大型のＲＣ造架台
を、該建屋の底盤に設けるようにした建屋内に設置され
るＲＣ造架台の構築法において、建屋底盤の配筋と平行
して架台配筋を建て込む架台配筋工程と、架台配筋と平
行して上記底盤のコンクリートを打設する底盤コンクリ
ート打設工程と、架台配筋の完了後に上記底盤上に建屋
の骨組みを構築する建屋骨組み工程と、建屋の構築と平
行して、上記架台配筋にコンクリートを打設してＲＣ造
架台を構築する架台コンクリート打設工程と、を備えた
ことを特徴とする。According to a first aspect of the present invention, there is provided a method of constructing an RC gantry to be installed in a building. In a method of constructing an RC gantry installed in a building, which is provided on a floor of the building, a gantry reinforcing step of laying the gantry reinforcement in parallel with the reinforcement of the building bottom, A bottom concrete placing step of placing the concrete of the bottom base, and a building framing step of building a building framework on the bottom floor after the completion of the placement of the base; and And a concrete placing step for constructing an RC gantry by placing concrete on the base.
【０００７】また、請求項２に示す本発明の建屋内に設
置されるＲＣ造架台の構築法は、建屋内に収納される大
型のＲＣ造架台を、該建屋の底盤に設けるようにした建
屋内に設置されるＲＣ造架台の構築法において、架台配
筋を予め部品化，ユニット化して全体を複数に分割して
組み立てておく架台配筋ブロック化工程と、配筋および
コンクリート打設を完了した上記底盤上に、建屋骨組み
の構築と平行して上記ブロック化した架台配筋を建て込
む架台配筋建て込み工程と、建屋の構築と平行して、上
記架台配筋にコンクリートを打設してＲＣ造架台を構築
する架台コンクリート打設工程と、を備えたことを特徴
とする。According to a second aspect of the present invention, there is provided a method for constructing an RC gantry installed in a building, wherein a large RC gantry accommodated in the building is provided on a bottom of the building. In the construction method of RC gantry to be installed indoors, the gantry arrangement is made into parts and unitized in advance and the whole is divided into multiple parts and assembled, and the reinforcement arrangement and concrete placement are completed. On the above-mentioned bottom plate, a truss bar arranging step of laying the block arranging bars arranged in parallel with the construction of the building frame, and placing concrete in the arranging bars in parallel with the building. And a gantry concrete casting step of constructing an RC gantry.
【０００８】以上示した本発明の建屋内に設置されるＲ
Ｃ造架台の構築法の作用を以下述べると、請求項１で
は、架台配筋工程では建屋底盤の配筋と架台配筋とが平
行して行われるとともに、この架台配筋と平行して底盤
コンクリート打設工程により上記底盤のコンクリートを
打設することにより、底盤の構築完了とほぼ同時期、若
しくは、少なくとも建屋の骨組み構築以前に架台配筋を
完了することができる。このときの架台配筋は、建屋が
構築される以前の屋外工事となるため、該ＲＣ造架台の
配筋作業は障害物が無い状態で施工されることになり、
作業能率が大幅に向上して短期間のうちに架台配筋が完
了される。そして、架台配筋の完了後に建屋骨組み工程
が施工され、これによって底盤上に建屋の骨組みを構築
し、この建屋の構築と平行して架台コンクリート打設工
程が行われる。この架台コンクリート打設工程では上記
架台配筋にコンクリートが打設されて上記ＲＣ造架台が
構築される。このように、建屋の構築と平行して上記Ｒ
Ｃ造架台を施工することができるため、該建屋の工事完
了時点ではＲＣ造架台を構築完了させることができるよ
うになり、ＲＣ造架台を含めた建屋の全体的な工期を大
幅に短縮することができる。The R installed in the building of the present invention described above
The operation of the method of constructing the C-shaped gantry will be described below. According to claim 1, in the gantry arrangement step, the reinforcement of the building bottom is arranged in parallel with the arrangement of the gantry, and By laying the concrete of the bottom in the concrete laying step, the arbor arrangement can be completed almost at the same time as the completion of the construction of the bottom, or at least before the framework of the building is constructed. At this time, the arbor reinforcement is an outdoor construction before the building is constructed, so the arranging work of the RC gantry is performed without any obstacles,
The work efficiency is greatly improved, and the arranging of the gantry is completed within a short period of time. Then, after the arranging of the gantry is completed, a framing process of the building is performed, whereby a framing of the building is constructed on the bottom, and a concrete placing process of the gantry is performed in parallel with the construction of the building. In this gantry concrete placing step, concrete is laid on the arranging bars and the RC gantry is constructed. Thus, in parallel with the construction of the building, the above R
Since the C gantry can be constructed, the RC gantry can be completed when the construction of the building is completed, and the overall construction period of the building including the RC gantry can be significantly reduced. Can be.
【０００９】また、請求項２では、架台配筋ブロック化
工程により架台配筋が予め部品化，ユニット化して全体
が複数に分割されており、これらブロック化された架台
配筋は、架台配筋建て込み工程によって建屋骨組みの構
築と平行して建屋底盤に建て込まれる。そして、架台配
筋の完了後に、建屋の構築と平行して架台コンクリート
打設工程が行われ、上記架台配筋にコンクリートが打設
されて上記ＲＣ造架台が構築される。このように、建屋
の構築と平行して上記ＲＣ造架台が施工されるようにな
っており、このとき、架台配筋は予め分割されて予備組
み立てされたものがブロック化されるため、それぞれブ
ロック化された架台配筋を現場に搬入，結合するのみで
簡単かつ短期間のうちに組み付けることができる。従っ
て、建屋の工事完了時点ではＲＣ造架台を構築完了させ
ることができるようになり、上記請求項１と同様にＲＣ
造架台を含めた建屋の全体的な工期を大幅に短縮するこ
とができる。According to the second aspect of the present invention, in the gantry arrangement block forming step, the gantry arrangement is previously divided into a plurality of parts by dividing the arrestor arrangement into parts and units. It is built on the floor of the building in parallel with the construction of the building frame by the building process. Then, after completion of the arranging of the gantry, a gantry concrete laying step is performed in parallel with the construction of the building, and concrete is laid on the arranging of the gantry to construct the RC gantry. In this way, the RC gantry is constructed in parallel with the construction of the building. At this time, the arranging of the gantry is divided in advance and pre-assembled ones are divided into blocks. It can be assembled easily and in a short period of time simply by loading and connecting the reinforced bar arrangement to the site. Therefore, the construction of the RC frame can be completed at the time of completion of the construction of the building.
The overall construction period of the building, including the gantry, can be significantly reduced.
【００１０】[0010]
【発明の実施の形態】以下、本発明の実施形態を添付図
面を参照して詳細に説明する。図１から図１２は本発明
の建屋内に設置されるＲＣ造架台の構築法の第１実施形
態を示し、図１はＲＣ造架台の構築手順の概略を（ａ）
から（ｃ）によって順に示す工程図、図２は本実施形態
で構築しようとするＲＣ造架台の全体斜視図、図３はＲ
Ｃ造架台の配筋作業と架台鉄骨組立作業の初期段階を示
す正面図、図４はＲＣ造架台の作業床組立作業の途中段
階を示す正面図、図５は作業床の部分構成を示す斜視
図、図６はＲＣ造架台の梁下端主筋部分の組み立てを示
す正面図、図７は梁下端主筋、梁底型枠および梁底支保
工部分の分解斜視図、図８はＲＣ造架台の梁上端鉄筋部
分の組み立てを示す正面図、図９は梁上端鉄筋部分の分
解斜視図、図１０はＲＣ造架台の配筋完成状態を示す正
面図、図１１は垂直材の取付け状態を示す正面図であ
る。Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. 1 to 12 show a first embodiment of a method for constructing an RC gantry to be installed in a building according to the present invention, and FIG. 1 shows an outline of a procedure for constructing an RC gantry (a).
To (c), FIG. 2 is an overall perspective view of the RC gantry to be constructed in this embodiment, and FIG.
FIG. 4 is a front view showing an initial stage of the work of arranging reinforcing bars of the C gantry and the assembling work of the gantry, FIG. 4 is a front view showing an intermediate stage of the work floor assembling work of the RC gantry, and FIG. 5 is a perspective view showing a partial configuration of the work floor. Fig. 6 and Fig. 6 are front views showing the assembly of the main reinforcement at the lower end of the beam of the RC frame, Fig. 7 is an exploded perspective view of the main bar at the lower end of the beam, the beam bottom formwork and the beam bottom support, and Fig. 8 is the beam of the RC frame. 9 is an exploded perspective view of the upper reinforcing bar of the beam, FIG. 10 is a front view showing a completed state of reinforcing bars of the RC gantry, and FIG. 11 is a front view showing a mounting state of the vertical member. It is.
【００１１】本実施形態のＲＣ造架台の構築法は、発電
所のタービン架台の構築法に例を取って示し、該タービ
ン架台は発電所の建屋内に収納された状態で構築され
る。即ち、図１に示すようにこの実施形態のタービン架
台１０の構築法は、建屋底盤１２の配筋と平行して架台
配筋１４を建て込む架台配筋工程（ａ）と、架台配筋１
４と平行して上記底盤１２のコンクリート１６を打設す
る底盤コンクリート打設工程（ｂ）と、架台配筋１４の
完了後に底盤１２上に建屋の骨組み１８を構築する建屋
骨組み工程（ｂ）と、建屋骨組み１８の各階のスラブ２
０構築と平行して、上記架台配筋１４にコンクリート２
２を打設して上記タービン架台１０を構築する架台コン
クリート打設工程（ｃ）と、を備えている。The method of constructing the RC gantry according to the present embodiment will be described with reference to an example of a method of constructing a turbine gantry of a power plant. The turbine gantry is constructed in a state housed in a building of the power plant. That is, as shown in FIG. 1, the construction method of the turbine gantry 10 of this embodiment includes a gantry arrangement step (a) for arranging the gantry arrangement 14 in parallel with the reinforcement arrangement of the building bottom 12, and a gantry arrangement 1
A bottom concrete placing step (b) for placing concrete 16 of the bottom 12 in parallel with 4; and a building framework step (b) of constructing a building framework 18 on the bottom 12 after the completion of the arranging of the gantry 14. , Slab 2 on each floor of building frame 18
In parallel with the construction, concrete 2
2 and a gantry concrete casting step (c) for constructing the turbine gantry 10.
【００１２】上記タービン架台１０は図２に示すよう
に、２列に並んだ複数本の脚柱２４と、これら脚柱２４
の列方向の上端部間を連結する梁２６とで概略構成さ
れ、更に対向する梁２６間は繋ぎ梁２８によって適宜連
結されるとともに、一部の脚柱２４には中間梁３０が設
けられる。As shown in FIG. 2, the turbine mount 10 has a plurality of pillars 24 arranged in two rows,
And a beam 26 connecting the upper ends in the column direction, and the opposing beams 26 are appropriately connected by a connecting beam 28, and an intermediate beam 30 is provided on some of the pillars 24.
【００１３】図１（ａ）に示した上記架台配筋工程で
は、まず、図３に示すように両側に構築しようとするタ
ービン架台１０の外周を囲繞して足場３２を仮設し、か
つ、仮設鉄骨柱３４を仮設しつつ上記脚柱２４に対応す
る箇所に脚部配筋３６を施工する。また、図４に示すよ
うに上記仮設鉄骨柱３４には図５に示すように鉄骨繋ぎ
材３８を横架して、これら鉄骨繋ぎ材３８間に根太鋼管
４０を差し渡して足場板４２を取り付けるようになって
いる。上記仮設鉄骨柱３４の配置は、底型枠の吊り支保
工を構成する水平材の断面寸法および作業足場のための
建て地間隔を考慮して、２ｍ前後の間隔をもって建て込
まれる。In the arranging step of the gantry shown in FIG. 1A, first, as shown in FIG. 3, a scaffold 32 is temporarily provided around the outer periphery of the turbine gantry 10 to be constructed on both sides. While the steel columns 34 are temporarily provided, the leg reinforcing bars 36 are constructed at locations corresponding to the pillars 24. Also, as shown in FIG. 4, a steel frame connecting member 38 is laid across the temporary steel column 34 as shown in FIG. 5, and a joist steel pipe 40 is inserted between these steel frame connecting members 38 to attach a scaffold plate 42 thereto. It has become. The temporary steel columns 34 are arranged at an interval of about 2 m in consideration of the cross-sectional dimension of the horizontal member constituting the suspension support of the bottom formwork and the interval between the sites for the work scaffolds.
【００１４】ところで、上記脚部配筋３６が施工完了さ
れた後、図６に示すように該脚部配筋３６の上端部には
上記梁２６の梁下端主筋４４が配筋される。この梁下端
主筋４４を配筋するにあたって、図７に示すように底型
枠仮受けステージ４６を取付け、その上に仮設大引き材
４８，根太材５０を渡して梁底デッキプレート５２を敷
設し、その上に上記梁下端主筋４４および梁下端スター
ラップ筋５４を施工するようになっている。By the way, after the leg reinforcement 36 is completed, a beam lower main reinforcement 44 of the beam 26 is disposed at the upper end of the leg reinforcement 36 as shown in FIG. In arranging the main beams 44 at the lower end of the beam, as shown in FIG. 7, a bottom form temporary receiving stage 46 is attached, and a temporary large drawing material 48 and a joist material 50 are passed over the stage 46, and a beam bottom deck plate 52 is laid. The beam lower main bar 44 and the beam lower stirrup bar 54 are constructed thereon.
【００１５】次に、上記梁下端主筋４４が施工された
後、図８に示すように梁上端主筋５６が配筋される。こ
の梁上端主筋５６を配筋するにあたって、図９に示すよ
うに上記梁底デッキプレート５２にボルト固定される梁
底型枠支持梁５８の上方に梁鉄筋架台６０を取り付け、
その上に上記梁上端主筋５６および梁上端スターラップ
筋６２を施工し、図１０に示すようにタービン架台１０
の配筋１４が完了する。また、上記脚部配筋３６間およ
び上記梁下端主筋４４，梁上端主筋５６間には、上記繋
ぎ梁２８および上記中間梁３０に対応する図外の配筋が
施工される。Next, after the above-mentioned beam lower main bar 44 is constructed, a beam upper main bar 56 is arranged as shown in FIG. In arranging the beam upper main bars 56, as shown in FIG. 9, a beam reinforcing frame 60 is attached above a beam bottom form support beam 58 bolted to the beam bottom deck plate 52,
The beam upper main bar 56 and the beam upper stirrup bar 62 are constructed thereon, and the turbine mount 10 as shown in FIG.
Is completed. Reinforcement (not shown) corresponding to the connecting beam 28 and the intermediate beam 30 is provided between the leg reinforcing bars 36 and between the beam lower main bars 44 and the beam upper main bars 56.
【００１６】また、上記架台配筋１４はコンクリート躯
体打込みのために、重量支保工，横架材の底型枠の吊り
支保工，鉄筋組立用架台および作業足場用建地からなる
仮設鉄骨架台が用いられる。更に、垂直材となる上記仮
設鉄骨柱３４は、図１１に示すように予めタービン架台
１０の横架材のコンクリート面に予め継手６４を設けて
おき、一方の継手６４には油圧ジャッキ６６を仕込み、
横架材となる梁２６および中間梁３０のコンクリート強
度発現後の解体作業の省力化（ガス溶断とそれに伴う補
修作業）を図ることが望ましい。更にまた、上記垂直材
の配置は、底型枠の吊り支保工を構成する水平材の断面
寸法および作業足場のための建地間隔を考慮して所定間
隔で行われる。The reinforcing bar arrangement 14 is a temporary steel frame comprising a weight support, a suspension support for a bottom form of a horizontal member, a reinforcing bar assembling base, and a work scaffolding building for driving a concrete frame. Used. Further, as shown in FIG. 11, the temporary steel column 34 serving as a vertical member is provided with a joint 64 in advance on the concrete surface of the horizontal member of the turbine mount 10, and a hydraulic jack 66 is provided in one joint 64. ,
It is desirable to reduce labor in dismantling work after the concrete strength of the beams 26 and the intermediate beams 30 serving as the horizontal members (gas fusing and repair work associated therewith). Still further, the vertical members are arranged at predetermined intervals in consideration of the cross-sectional dimensions of the horizontal members constituting the suspension support of the bottom formwork and the intervals between the building sites for the work platforms.
【００１７】従って、本実施形態のタービン架台１０の
構築法にあっては、架台配筋工程によって建屋底盤１２
の配筋と架台配筋１４とを平行して行うとともに、底盤
コンクリート打設工程によってこの架台配筋１４と平行
して上記底盤１２のコンクリート１６を打設するように
したので、底盤１２の構築完了とほぼ同時期、若しくは
少なくとも建屋の骨組み１８以前に架台配筋１４を完了
することができる。Therefore, in the method of constructing the turbine gantry 10 according to the present embodiment, the building bottom 12
And the base reinforcements 14 are arranged in parallel with each other, and the concrete 16 of the bottom base 12 is driven in parallel with the base reinforcements 14 by a bottom concrete placement step. The gantry arrangement 14 can be completed at about the same time as completion, or at least before the building framework 18.
【００１８】このように本実施形態では、建屋の骨組み
１８以前に架台配筋１４の組み立て作業を行うことがで
きるため、この架台配筋１４は建屋が構築される以前の
屋外工事として作業することができ、延いては、障害物
が無い状態で施工されることになり、作業能率が大幅に
向上して短期間のうちに架台配筋１４の組み立て作業を
完了することができる。そして、架台配筋１４の完了後
に建屋骨組み工程を施工し、これによって底盤１２上に
建屋の骨組み１８を構築し、この建屋骨組み１８の各階
のスラブ２０構築と平行して架台コンクリート打設工程
を行うことにより、上記架台配筋１４にコンクリート２
２を打設して上記タービン架台１０を構築できるように
なっている。As described above, in the present embodiment, since the assembling work of the gantry reinforcing bar 14 can be performed before the frame 18 of the building, the arranging bar reinforcing bar 14 must be worked as an outdoor construction before the building is constructed. Accordingly, the work is performed without any obstacles, and the work efficiency is greatly improved, so that the assembling work of the gantry arrangement 14 can be completed in a short period of time. Then, after the completion of the arranging of the gantry 14, a framing process of the building is carried out, whereby a framing 18 of the building is constructed on the base 12 and a concrete placing process of the gantry is carried out in parallel with the construction of the slabs 20 on each floor of the framing 18. By doing so, concrete 2
2, the turbine mount 10 can be constructed.
【００１９】このように、本実施形態では発電所の建屋
の構築と平行して上記タービン架台１０を施工すること
ができるため、該建屋の工事完了時点ではタービン架台
１０を構築完了させることができる。従って、該タービ
ン架台１０を含めた建屋の全体的な工期を大幅に短縮す
ることができる。As described above, in this embodiment, since the turbine mount 10 can be constructed in parallel with the construction of the power plant building, the construction of the turbine mount 10 can be completed when the construction of the building is completed. . Therefore, the overall construction period of the building including the turbine mount 10 can be significantly reduced.
【００２０】図１２から図１７は本発明の建屋内に設置
されるＲＣ造架台の構築法の第２実施形態を示し、図１
２はＲＣ造架台の構築手順の概略を（ａ）から（ｃ）に
よって順に示す工程図、図１３は本実施形態で構築しよ
うとするＲＣ造架台の全体斜視図、図１４はＲＣ造架台
の架台鉄骨の軸組を示す（ａ）の正面図、（ｂ）の側面
図、図１５はＲＣ造架台の架台鉄骨、配筋、梁底型枠お
よび作業床の軸組の部分詳細図、図１６はＲＣ造架台の
先組ブロックの建て込み状況図、図１７はブロック化し
たＲＣ造架台の配筋の接続部分を示す説明図で、上記第
１実施形態と同一構成部分に同一符号を付して重複説明
を省略して述べる。FIG. 12 to FIG. 17 show a second embodiment of the method of constructing an RC gantry to be installed in a building according to the present invention.
2 is a process diagram showing the outline of the construction procedure of the RC gantry in order from (a) to (c), FIG. 13 is an overall perspective view of the RC gantry to be constructed in this embodiment, and FIG. FIG. 15A is a front view showing a frame of a gantry frame, FIG. 15B is a side view of the gantry frame, and FIG. 15 is a partially detailed view of a frame of a gantry frame, a reinforcement, a beam bottom formwork and a work floor of an RC gantry. FIG. 16 is a view showing the state of the pre-assembled blocks of the RC gantry, and FIG. 17 is an explanatory view showing the connection portions of the reinforcing bars of the RC gantry that has been made into a block. The description will not be repeated.
【００２１】この実施形態にあっても上記第１実施形態
と同様にＲＣ造架台の構築法は、発電所のタービン架台
の構築法に例を取って示す。即ち、この実施形態のター
ビン架台１０の構築法は、図１４（ａ），（ｂ）の一点
鎖線に示すように架台配筋１４を予め部品化，ユニット
化して全体を複数に分割して組み立てておく架台配筋ブ
ロック化工程と、図１２（ａ）に示すように配筋および
コンクリート打設を完了した建屋の底盤１２上に、同図
（ｂ）に示すように建屋の骨組み１８の構築と平行して
上記ブロック化した架台配筋１４を建て込む架台配筋建
て込み工程と、同図（ｃ）に示すように建屋骨組み１８
の各階のスラブ２０の構築と平行して、上記架台配筋１
４にコンクリート２２を打設してタービン架台１０を構
築する架台コンクリート打設工程と、を備えている。In this embodiment, as in the first embodiment, the method of constructing the RC gantry will be described with reference to the method of constructing the turbine gantry of the power plant. That is, in the method of constructing the turbine mount 10 of this embodiment, as shown by the dashed line in FIGS. As shown in FIG. 12 (b), a frame 18 of the building is constructed on the bottom 12 of the building where the reinforcement and the concrete placement are completed as shown in FIG. 12 (a). A arbor arrangement step of arranging the arrestor arrangement 14 blocked in parallel with the above, and a building frame 18 as shown in FIG.
In parallel with the construction of the slab 20 on each floor,
4 is a concrete mounting step of casting the concrete 22 into the turbine mount 10.
【００２２】上記タービン架台１０は図１３に示すよう
に、上記第１実施形態と同様に２列に並んだ複数本の脚
柱２４と、これら脚柱２４の列方向の上端部間を連結す
る梁２６とで概略構成され、更に対向する梁２６間は繋
ぎ梁２８によって適宜連結されるとともに、一部の脚柱
２４には中間梁３０が設けられる。そして、上記架台配
筋ブロック化工程でブロック化される架台配筋１４の分
割位置は、上記図１４の一点鎖線位置となるが、これは
図１３に示した上記タービン架台１０の同図中一点鎖線
に対応した位置となる。As shown in FIG. 13, the turbine mount 10 connects a plurality of pillars 24 arranged in two rows and the upper ends of these pillars 24 in the row direction as in the first embodiment. The beam 26 is roughly configured, and the opposing beams 26 are appropriately connected by a connecting beam 28, and an intermediate beam 30 is provided on some of the pillars 24. Then, the dividing position of the gantry reinforcing bar 14 to be blocked in the gantry reinforcing bar blocking step is the one-dot chain line position in FIG. 14, which is one point in the same figure of the turbine gantry 10 shown in FIG. The position corresponds to the chain line.
【００２３】即ち、上記ブロック化は平面視で中央部か
ら左右分割されるとともに、各脚柱２４に対応して長さ
方向に５分割されて、計１０分割（ＳＡ，ＳＢ，ＳＣ…
…ＳＩ，ＳＪ）され、更にこれら平面視で１０分割され
たものが立面視でそれぞれ上下方向に２分割（ＳＡ−
１，ＳＢ−２，ＳＢ−１，ＳＢ−２，ＳＣ−１，ＳＣ−
２……）されて全体で２０分割される。勿論、この分割
数は作業手順や施工性等を考慮して任意に設定できるこ
とはいうまでもない。That is, the block is divided into left and right parts from the center in plan view, and divided into five parts in the length direction corresponding to each pillar 24, for a total of ten divisions (SA, SB, SC...).
.. SI, SJ) and further divided into 10 parts in a plan view, each divided into two parts in an up-down direction (SA-
1, SB-2, SB-1, SB-2, SC-1, SC-
2 ...) and the whole is divided into 20. Of course, it is needless to say that the number of divisions can be arbitrarily set in consideration of work procedures, workability, and the like.
【００２４】上記架台配筋１４は図１５に示すように、
支保工を兼ねた仮設支柱３４と、それぞれの仮設支柱３
４に差し渡される繋ぎ材３８と、吊り型枠用打込み鉄骨
梁７０とで骨格が形成され、かつ、図１３に示すように
タービン架台１０の上記脚柱２４に対応する箇所に図１
５の脚部配筋３６が設けられる。そして、同図に示すよ
うに上記繋ぎ材３８には足場板４２が取り付けられると
ともに、仮設支柱３４および繋ぎ材３８はブレース７２
で補強される。また、上記吊り型枠用打込み鉄骨梁７０
は、同図に示すように根太材５０，デッキプレート５
２，梁底型枠支持梁５８，梁鉄筋架台６０，梁鉄骨７４
および梁上端主筋５６，スターラップ５４，６２等によ
って構成される。As shown in FIG.
Temporary columns 34 that also serve as supports, and each temporary column 3
The frame is formed by the connecting member 38 to be inserted into the steel frame 4 and the driven steel beam 70 for the suspension form, and as shown in FIG.
Five leg reinforcements 36 are provided. Then, as shown in the figure, a scaffold plate 42 is attached to the connecting member 38, and the temporary support 34 and the connecting member 38
Reinforced with. In addition, the driving steel beam 70 for the suspension form
Are the joist 50 and the deck plate 5 as shown in FIG.
2. Beam bottom formwork supporting beam 58, beam reinforcing frame 60, beam steel frame 74
And the main beam 56 at the upper end of the beam, stirrups 54 and 62, and the like.
【００２５】上記架台配筋建て込み工程では、分割され
てブロック化された上記架台配筋１４が、図１６に示す
ように揚重されて順次現場に搬入され、そして、ブロッ
ク化された架台配筋１４がタービン架台１０の構築現場
で順次組み付けられていく。このとき、架台配筋１４を
構成する各ブロック毎の鉄筋は互いに結合されるが、こ
の鉄筋の結合手段としては、例えば繋ぎ材３８では図１
７中（ａ）および（ｂ）に示すように、この繋ぎ材３８
にねじ鉄筋を用いてナット７６結合することができる。
この結合構造では（ａ）に示したようにパイプレンチ７
８で相手側とのギャップを微調整することができるとと
もに、（ｂ）に示したように両方の繋ぎ材３８を結合し
た状態で、ナット７６内にグラウト剤を注入することが
望ましい。In the gantry arrangement step, the gantry arrangements 14 divided and blocked are lifted as shown in FIG. 16 and sequentially carried to the site, and then the gantry arrangements are blocked. The streaks 14 are sequentially assembled at the construction site of the turbine mount 10. At this time, the reinforcing bars of each block constituting the gantry reinforcing member 14 are connected to each other.
As shown in (a) and (b) of FIG.
The nut 76 can be connected using a screw rebar.
In this connection structure, as shown in FIG.
It is desirable that the grout agent can be finely adjusted at 8 and that the grouting agent be injected into the nut 76 with both the connecting members 38 connected as shown in FIG.
【００２６】従って、この実施形態のタービン架台１０
の構築法にあっては、架台配筋ブロック化工程により架
台配筋１４が予め部品化，ユニット化して全体が複数に
分割されており、これらブロック化された架台配筋１４
は、架台配筋建て込み工程によって建屋の骨組み１８と
平行して、この骨組み１８内にブロック化されたものが
順次吊り込まれて建屋底盤１２に建て込まれるようにな
っている。そして、架台配筋１４の完了後に、建屋骨組
み１８の各階のスラブ２０構築と平行して架台コンクリ
ート打設工程が行われることにより、上記架台配筋１４
にコンクリート２２が打設されて上記タービン架台１０
が構築される。上記架台配筋１４が建て込まれる際、建
屋底盤１２から継手用の鉄筋を突出させておく必要があ
り、若しくは、ブロック化された上記架台配筋１４の下
段（ＳＡ−１，ＳＢ−１，ＳＣ−１，……）の下端部を
予め建屋底盤１２のコンクリート１６内に埋設してお
く。Therefore, the turbine mount 10 of this embodiment is
In the construction method of the above, the arrestor arrangement 14 is previously divided into a plurality of parts by unitizing and arranging the arrestor arrangement 14 in a arrestor arrangement block forming step.
In the frame, a block formed in the frame 18 is sequentially suspended in the frame 18 in parallel with the frame 18 of the building by the step of arranging reinforcing bars, and is built into the floor 12 of the building. Then, after completion of the arranging bars 14, a gantry concrete placing process is performed in parallel with the construction of the slabs 20 on each floor of the building frame 18, whereby the arranging bars 14 are provided.
Concrete 22 is poured into the turbine mount 10
Is constructed. When the gantry arrangement 14 is erected, it is necessary to protrude a reinforcing bar for a joint from the building bottom 12, or a lower stage (SA-1, SB-1, SC-1...) Are buried in the concrete 16 of the building bottom 12 in advance.
【００２７】このように、建屋の構築と平行して上記タ
ービン架構１０が施工されるようになっており、このと
き、架台配筋１４は予め分割されて予備組み立てされた
ものがブロック化されるため、それぞれブロック化され
た架台配筋１４を現場に搬入，結合するのみで簡単かつ
短期間のうちに組み付けることができる。従って、建屋
の工事完了時点ではタービン架台１０を構築完了させる
ことができるようになり、上記第１実施形態と同様にタ
ービン架台１０を含めた発電所建屋の全体的な工期を大
幅に短縮することができる。As described above, the turbine frame 10 is constructed in parallel with the construction of the building. At this time, the frame arrangement 14 is divided in advance and the preassembled one is blocked. Therefore, it is possible to easily and quickly assemble the pedestal reinforcing bars 14 which are respectively blocked, only by carrying them into the site and connecting them. Therefore, at the time of completion of the construction of the building, the construction of the turbine mount 10 can be completed, and the overall construction period of the power plant building including the turbine mount 10 can be significantly reduced as in the first embodiment. Can be.
【００２８】ところで、本実施形態では発電所のタービ
ン架台１０に例をとってＲＣ造架台を説明したが、その
他の架台重量となる大型機械の架台にあっても本発明を
適用できることはいうまでもない。In this embodiment, the RC gantry is described by taking the turbine gantry 10 of the power plant as an example. However, it goes without saying that the present invention can be applied to a gantry of a large machine having another gantry weight. Nor.
【００２９】[0029]
【発明の効果】以上説明したように本発明の建屋内に設
置されるＲＣ造架台の構築法の効果を以下各請求項毎に
示す。As described above, the effects of the method for constructing an RC gantry installed in a building according to the present invention will be described below for each claim.
【００３０】（１）請求項１の構築法は、架台配筋工程
で建屋底盤の配筋と架台配筋とが平行して行われるとと
もに、この架台配筋と平行して底盤コンクリート打設工
程により上記底盤のコンクリートを打設するので、底盤
の構築完了とほぼ同時期、若しくは、少なくとも建屋の
骨組み以前に架台配筋を完了することができる。従っ
て、このときの架台配筋の施工を障害物が無い屋外工事
とすることができるため、作業能率が大幅に向上して短
期間のうちに架台配筋を完了することができる。そし
て、架台配筋の完了後に建屋骨組み工程が施工され、こ
れによって底盤上に建屋の骨組みを構築し、この建屋の
構築と平行して架台コンクリート打設工程を行うことに
よって、上記ＲＣ造架台を構築することができる。この
ように、建屋の構築と平行して上記ＲＣ造架台を施工す
ることができ、該建屋の工事完了時点ではＲＣ造架台を
構築完了させることができるため、ＲＣ造架台を含めた
建屋の全体的な工期を大幅に短縮することができる。(1) According to the construction method of claim 1, in the arranging step of the gantry, the arranging of the floor of the building and the arranging of the gantry are performed in parallel, and the concrete laying step of the bottom is performed in parallel with the arranging of the gantry. As a result, the concrete for the bottom is cast, so that the reinforcing bars can be arranged almost at the same time as the completion of the construction of the bottom, or at least before the framework of the building. Therefore, since the installation of the arbor arrangement at this time can be an outdoor construction without obstacles, the work efficiency is greatly improved, and the arrest arrangement can be completed in a short period of time. Then, after the completion of the arranging of the gantry, a framing process of the building is carried out, whereby a framing of the building is constructed on the bottom, and a concrete laying process of the gantry is performed in parallel with the construction of the building. Can be built. As described above, the RC gantry can be constructed in parallel with the construction of the building, and the construction of the RC gantry can be completed when the construction of the building is completed. It is possible to greatly reduce the required construction period.
【００３１】また、請求項２では、架台配筋ブロック化
工程により架台配筋が予め部品化，ユニット化して全体
が複数に分割されており、これらブロック化された架台
配筋を、架台配筋建て込み工程によって建屋の骨組みの
構築と平行して建屋底盤に建て込み、そして、架台配筋
の完了後に、建屋の構築と平行して架台コンクリート打
設工程が行われて上記ＲＣ造架台を構築できるため、建
屋の構築と平行して上記ＲＣ造架台を施工することがで
きる。また、架台配筋はブロック化により予め分割され
て予備組み立てされているため、それぞれブロック化さ
れた架台配筋を現場に搬入，結合するのみで簡単かつ短
期間のうちに組み付けることができる。従って、建屋の
工事完了時点でＲＣ造架台を構築完了させることができ
るようになり、上記請求項１と同様にＲＣ造架台を含め
た建屋の全体的な工期を大幅に短縮することができると
いう各種優れた効果を奏する。According to the second aspect of the present invention, the gantry arrangement is divided into a plurality of parts by dividing the arrestor arrangement into parts and units in advance in the gantry arrangement block forming step. In the building process, it is built on the floor of the building in parallel with the construction of the frame of the building, and after completion of the reinforcement arrangement, the concrete mounting process of the gantry is performed in parallel with the construction of the building to build the RC frame. Therefore, the RC gantry can be constructed in parallel with the construction of the building. Further, since the gantry arrangement is preliminarily divided and pre-assembled by blocking, the gantry arrangement can be easily assembled in a short time only by carrying in and connecting the blocked arrest arrangement to the site. Therefore, the construction of the RC frame can be completed at the time of the completion of the construction of the building, and the entire construction period of the building including the RC frame can be significantly reduced as in the above-described claim 1. It has various excellent effects.
【図１】本発明の第１実施形態でＲＣ造架台の構築手順
の概略を（ａ）から（ｃ）によって順に示す工程図であ
る。FIG. 1 is a process diagram showing an outline of a construction procedure of an RC gantry according to a first embodiment of the present invention in order from (a) to (c).
【図２】本発明の第１実施形態で構築しようとするＲＣ
造架台の全体斜視図である。FIG. 2 shows an RC to be constructed in the first embodiment of the present invention;
It is a whole perspective view of a construction stand.
【図３】本発明の第１実施形態でＲＣ造架台の配筋作業
と架台鉄骨組立作業の初期段階を示す正面図である。FIG. 3 is a front view showing an initial stage of an RC arranging work and a gantry steel frame assembling work in the first embodiment of the present invention.
【図４】本発明の第１実施形態でＲＣ造架台の作業床組
立作業の途中段階を示す正面図である。FIG. 4 is a front view showing an intermediate stage of a work floor assembling operation of the RC gantry according to the first embodiment of the present invention.
【図５】本発明の第１実施形態で作業床の部分構成を示
す斜視図である。FIG. 5 is a perspective view showing a partial configuration of a work floor according to the first embodiment of the present invention.
【図６】本発明の第１実施形態でＲＣ造架台の梁下端主
筋部分の正面図である。FIG. 6 is a front view of a main bar at the lower end of the beam of the RC gantry according to the first embodiment of the present invention.
【図７】本発明の第１実施形態で梁下端主筋、梁底型枠
および梁底支保工部分の分解斜視図である。FIG. 7 is an exploded perspective view of a beam bottom main reinforcement, a beam bottom formwork, and a beam bottom support portion in the first embodiment of the present invention.
【図８】本発明の第１実施形態でＲＣ造架台の梁上端鉄
筋部分の正面図である。FIG. 8 is a front view of a reinforcing bar at the upper end of the beam of the RC gantry according to the first embodiment of the present invention.
【図９】本発明の第１実施形態で梁上端鉄筋部分の分解
斜視図である。FIG. 9 is an exploded perspective view of a reinforcing bar at the upper end of the beam in the first embodiment of the present invention.
【図１０】本発明の第１実施形態でＲＣ造架台の配筋完
成状態の正面図である。FIG. 10 is a front view of the RC gantry according to the first embodiment of the present invention in a state in which reinforcing bars are completed.
【図１１】本発明の第１実施形態で垂直材の取付け状態
を示す正面図である。FIG. 11 is a front view showing an attached state of a vertical member according to the first embodiment of the present invention.
【図１２】本発明の第２実施形態でＲＣ造架台の構築手
順の概略を（ａ）から（ｃ）によって順に示す工程図で
ある。FIG. 12 is a process chart showing the outline of the construction procedure of the RC gantry in the second embodiment of the present invention in order from (a) to (c).
【図１３】本発明の第２実施形態で構築しようとするＲ
Ｃ造架台の全体斜視図である。FIG. 13 illustrates an R to be constructed in the second embodiment of the present invention.
It is the whole perspective view of a C frame.
【図１４】本発明の第２実施形態でＲＣ造架台の架台鉄
骨の軸組を示す（ａ）の正面図、（ｂ）の側面図であ
る。FIGS. 14A and 14B are a front view and a side view, respectively, showing a frame of a gantry steel frame of an RC gantry according to a second embodiment of the present invention.
【図１５】本発明の第２実施形態でＲＣ造架台の架台鉄
骨、配筋、梁底型枠および作業床の軸組の部分詳細図で
ある。FIG. 15 is a partial detailed view of a frame of a gantry of a RC gantry, reinforcing bars, a beam bottom formwork, and a work floor in a second embodiment of the present invention.
【図１６】本発明の第２実施形態でＲＣ造架台の先組ブ
ロックの建て込み状況図である。FIG. 16 is a view showing a erection state of a pre-assembled block of an RC gantry according to a second embodiment of the present invention.
【図１７】本発明の第２実施形態でブロック化したＲＣ
造架台の配筋の接続部分を示す説明図である。FIG. 17 shows RC blocks according to the second embodiment of the present invention;
It is explanatory drawing which shows the connection part of the reinforcement arrangement of a gantry.
１０ タービン架台 １２ 建屋底盤 １４ 架台配筋 １６ 底盤のコンクリート １８ 建屋骨組み ２０ スラブ ２２ 架台のコンクリート DESCRIPTION OF SYMBOLS 10 Turbine mount 12 Building bottom board 14 Base reinforcement 16 Concrete of bottom board 18 Building frame 20 Slab 22 Concrete of mount
───────────────────────────────────────────────────── フロントページの続き (72)発明者 山口 善史 大阪府大阪市中央区北浜東４番33号 株式 会社大林組本店内 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Yoshifumi Yamaguchi 4-33 Kitahama Higashi, Chuo-ku, Osaka-shi, Osaka
Claims (2)
を、該建屋の底盤に設けるようにした建屋内に設置され
るＲＣ造架台の構築法において、 建屋底盤の配筋と平行して架台配筋を建て込む架台配筋
工程と、 架台配筋と平行して上記底盤のコンクリートを打設する
底盤コンクリート打設工程と、 架台配筋の完了後に上記底盤上に建屋の骨組みを構築す
る建屋骨組み工程と、 建屋の構築と平行して、上記架台配筋にコンクリートを
打設してＲＣ造架台を構築する架台コンクリート打設工
程と、を備えたことを特徴とする建屋内に設置されるＲ
Ｃ造架台の構築法。1. A method of constructing a RC gantry installed in a building, wherein a large RC gantry accommodated in the building is provided on the bottom of the building. A truss arrangement process for building gantry reinforcement, a bottom concrete placing process for placing the concrete of the bottom in parallel with the truss reinforcement, and constructing a building framework on the bottom after completion of the arrest arrangement A building framing process, and, in parallel with the construction of the building, a gantry concrete casting process of laying concrete on the arranging bars and constructing an RC frame. R
How to build a C-frame.
を、該建屋の底盤に設けるようにした建屋内に設置され
るＲＣ造架台の構築法において、 架台配筋を予め部品化，ユニット化して全体を複数に分
割して組み立てておく架台配筋ブロック化工程と、 配筋およびコンクリート打設を完了した上記底盤上に、
建屋骨組みの構築と平行して上記ブロック化した架台配
筋を建て込む架台配筋建て込み工程と、 建屋の構築と平行して、上記架台配筋にコンクリートを
打設してＲＣ造架台を構築する架台コンクリート打設工
程と、を備えたことを特徴とする建屋内に設置されるＲ
Ｃ造架台の構築法。2. A method of constructing an RC frame to be installed in a building, wherein a large RC frame to be housed in the building is provided on the bottom of the building. And the whole is divided into multiple parts and assembled into a gantry rebar block-forming process.
A truss bar arranging process for laying the above-mentioned block arranging bars in parallel with the construction of the building frame, and, in parallel with the construction of the building, placing concrete in the arranging bars and constructing an RC frame. R installed in a building, comprising:
How to build a C-frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33441097A JPH11166323A (en) | 1997-12-04 | 1997-12-04 | Construction method for rc molded frame installed in building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33441097A JPH11166323A (en) | 1997-12-04 | 1997-12-04 | Construction method for rc molded frame installed in building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11166323A true JPH11166323A (en) | 1999-06-22 |
Family
ID=18277070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33441097A Pending JPH11166323A (en) | 1997-12-04 | 1997-12-04 | Construction method for rc molded frame installed in building |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11166323A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019015077A (en) * | 2017-07-06 | 2019-01-31 | 大成建設株式会社 | Construction method of building |
-
1997
- 1997-12-04 JP JP33441097A patent/JPH11166323A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019015077A (en) * | 2017-07-06 | 2019-01-31 | 大成建設株式会社 | Construction method of building |
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