JP3937974B2

JP3937974B2 - Machine support method

Info

Publication number: JP3937974B2
Application number: JP2002233266A
Authority: JP
Inventors: 正吉田中
Original assignee: 石川島運搬機械株式会社
Priority date: 2002-08-09
Filing date: 2002-08-09
Publication date: 2007-06-27
Anticipated expiration: 2022-08-09
Also published as: JP2004068550A

Description

【０００１】
【発明の属する技術分野】
本発明は機械支持方法に関するものである。
【０００２】
【従来の技術】
近年、工場で生産した鉄筋コンクリート構造部材を、ビル建築現場で順に組み立ててビル躯体を構築する工法が実施されている。
【０００３】
図４は鉄筋コンクリート構造部材の一例を示すものであり、この構造部材は、上下に延びる複数の鉄筋１の中間部分を、コンクリート柱状体に埋め込んで鉄筋１の両端部分を露出させた柱材２と、基端部分が鉄筋１に固着され且つ横向きに延びる複数の鉄筋３の基端寄り部分を、コンクリート突出部に埋め込んで前記のコンクリート柱状体に一体化した梁受４とを備えている。
【０００４】
ビル躯体の構築にあたっては、図５に示すように、躯体構築場所の外方に設置したクレーン５により、柱材２を順に接続して４箇所に主柱６を立設しながら、相対する梁受４に梁材７の各端部を接続する。
【０００５】
上記梁材７は、図４に示すように、横向きに延びる複数の鉄筋８の中間部分を、コンクリート梁状体に埋め込んだもので、梁受４に対する梁材７の接続は、鉄筋３、鉄筋８の相互の溶接と、コンクリート柱状体とコンクリート突出部との間の空隙へのコンクリートの充填とで達成される。
【０００６】
クレーン５は、クライミング方式のものを用いており、躯体高さの増大に対応するようにマスト９を順に接続して揚程を確保し、また、マスト９の所定箇所をサポート１０によりビル躯体に連結して、クレーン５を支持している。
【０００７】
【発明が解決しようとする課題】
しかしながら、ビル建築現場の周囲に既設の建物があると、ビル躯体の構築に最適な位置にクレーン５を設置できず、これにより、ビル建設を効率よく行なうことができない。
【０００８】
また、クレーン５がビル躯体の中央部分に位置するように、クレーン５をビル躯体に組み込んだ梁材７に支持させることも考えられるが、コンクリートで表層部分が形成されている梁材７と柱材２の間に、荷重支持用の補強材を介在させることは現実的ではない。
【０００９】
本発明は上述した実情に鑑みてなしたもので、鉄筋コンクリート構造の躯体が機械の荷重を支持できるようにすることを目的としている。
【００１０】
【課題を解決するための手段】
上記目的を達成するため、本発明の機械支持方法では、横方向へ突出する梁受を設けた鉄筋コンクリート構造の柱材を順に接続して４箇所に主柱を立設しつつ、相対する梁受に梁材の各端部を接続して建物躯体を構築する際に、所定の２本の主柱の間に第１の鋼製仮設梁を介在させて、該第１の鋼製仮設梁の各端部を相対している梁受の上面に載置し、他の２本の主柱の間に第２の鋼製仮設梁を介在させて、該第２の鋼製仮設梁の各端部を相対している梁受の上面に載置したうえ、第１、第２の鋼製仮設梁に機械架台を搭載し、第１、第２の鋼製仮設梁の機械架台を搭載した後に、第３の鋼製仮設梁の各端部を第１の鋼製仮設梁の上方で相対している梁受の上面に載置し、第４の鋼製仮設梁の各端部を第２の鋼製仮設梁の上方で相対している梁受の上面に載置したうえ、第１、第２の鋼製仮設梁上の機械架台を第３、第４の鋼製仮設梁に搭載し、第３、第４の鋼製仮設梁の機械架台を搭載した後に、第１の鋼製仮設梁の各端部を第３の鋼製仮設梁の上方で相対している梁受の上面に載置し、第２の鋼製仮設梁の各端部を第４の鋼製仮設梁の上方で相対している梁受の上面に載置したうえ、第３、第４の鋼製仮設梁上の機械架台を第１、第２の鋼製仮設梁に搭載する作業を順次繰り返す。
【００１１】
本発明の機械支持方法においては、主柱に対して一体的に形成され且つ所定の強度を有する梁受に、第１、第２の鋼製仮設梁を掛け渡し、第１、第２の鋼製仮設梁へ機械架台を搭載して、機械の荷重を主柱に伝達し、主柱に対して一体的に形成され且つ所定の強度を有する梁受に、第３、第４の鋼製仮設梁を掛け渡し、第１、第２の鋼製仮設梁に搭載されている機械架台を、第３、第４の鋼製仮設梁へ移し替えて、機械の荷重を主柱に伝達し、第１、第２の鋼製仮設梁を梁受に掛け渡して当該鋼製仮設梁へ機械架台を搭載する作業、及び第３、第４の鋼製仮設梁を梁受に掛け渡して当該第３、第４の鋼製仮設梁に機械架台を搭載する作業を交互に行ない、鋼製仮設梁を２本ずつ交互に使用しながら機械の荷重を主柱に伝達する。
【００１２】
【発明の実施の形態】
以下、本発明の実施の形態を、図示例とともに説明する。
【００１３】
図１乃至図３は本発明の機械支持方法の実施の形態の一例であり、図中、図４及び図５と同一の符号を付したものは同一物を表している。
【００１４】
この機械支持方法では、当初、ビル建築現場に投入したレッカーなどにより、横方向へ突出する梁受４を設けた鉄筋コンクリート構造の柱材２を順に接続し、躯体構築場所内の所定位置の４箇所に主柱６を立設し、また、相対する梁受４に梁材７の各端部を接続して建物躯体の下層階部分を構築する。
【００１５】
その後、所定の２本の主柱６の間に第１の鋼製仮設梁１１を介在させて、該第１の鋼製仮設梁１１の各端部を相対している梁受４の上面に載置し、他の２本の主柱６の間に第２の鋼製仮設梁１２を介在させて、該第２の鋼製仮設梁１２の各端部を相対している梁受４の上面に載置する。
【００１６】
この第１、第２の鋼製仮設梁１１，１２の上にクライミング方式のクレーンの架台１３を搭載し、該架台１３の上にクレーンを組み立てる。
【００１７】
架台１３は、架台本体１４と、その前後端部に設けられ且つ横方向へ突出可能な伸縮構造の４本の支持脚１５とを備えている。
【００１８】
この架台１３を各鋼製仮設梁１１，１２上に搭載するときには、支持脚１５の伸縮機能を活用して、当該支持脚１５の先端部が各鋼製仮設梁１１，１２上面の最適箇所に位置するように支持脚１５の長さを設定する。
【００１９】
以後、クレーンにより、鉄筋コンクリート構造の柱材２を順に接続して主柱６を立設し、また、相対する梁受４に梁材７の各端部を接続して建物躯体の第２の構築段階の階層部分を構築する。
【００２０】
所期の階層部分を構築した後、更に、所定の２本の主柱６の間に、第３の鋼製仮設梁１６の各端部を、第１の鋼製仮設梁１１の上方で相対している所定の階層の梁受４の上面に載置し、第４の鋼製仮設梁１７の各端部を、第２の鋼製仮設梁１２の上方で相対している所定の階層の梁受４の上面に載置する（図１参照）。
【００２１】
次いで、クレーンの昇降装置を利用してマスト９を上昇させることにより、該マスト９を介して架台１３を引き上げ、第３、第４の鋼製仮設梁１６，１７上面に搭載する。
【００２２】
このとき、支持脚１５の長さを短縮して、架台１３の上昇中の途中階層の梁材７と支持脚１５の先端部が干渉しないようにする。
【００２３】
更に、クレーンにより、鉄筋コンクリート構造の柱材２を順に接続して主柱６を立設し、また、相対する梁受４に梁材７の各端部を接続して建物躯体の第３の構築段階の階層部分を構築する。
【００２４】
上層の階へクレーンの据え付け位置を移動させる必要がある場合には、第１の鋼製仮設梁１１を前記の設定位置から引き上げ、当該鋼製仮設梁１１の各端部を第３の鋼製仮設梁１６の上方で相対している所定の階層の梁受４の上面に載置し、第２の鋼製仮設梁１２を前記の設定位置から引き上げ、当該鋼製仮設梁１２の各端部を第４の鋼製仮設梁１７の上方で相対している所定階層の梁受４の上面に載置する。
【００２５】
次いで、前述したマスト９の引き上げ作業を再び行なうことによって、第３、第４の鋼製仮設梁１６，１７上面にある架台１３を、上層の階に移設した第１、第２の鋼製仮設梁１１，１２上面に搭載する。
【００２６】
以後、上述した作業を繰り返すことによって、建物躯体の構築を進捗させる。
【００２７】
このように、図１乃至図３に示す本発明の機械支持方法においては、鉄筋コンクリート構造の柱材２に対して一体的に形成され且つ所定の強度を有する梁受４の上面に、第１、第２の鋼製仮設梁１１，１２、あるいは第３、第４の鋼製仮設梁１６，１７を掛け渡し、これら鋼製仮設梁１１，１２，１６，１７上面に搭載される架台１３の荷重を、各鋼製仮設梁１１，１２，１６，１７及び梁受４を介して主柱６へ伝達するので、鉄筋コンクリート構造の躯体で、クレーンなどの機械を支持することができる。
【００２８】
なお、本発明の機械支持方法は上述した実施の形態のみに限定されるものではなく、本発明の要旨を逸脱しない範囲内において種々変更を加え得ることは勿論である。
【００２９】
【発明の効果】
以上述べたように、本発明の機械支持方法においては、鉄筋コンクリート構造の主柱に対して一体的に形成され且つ所定の強度を有する梁受に、一対の鋼製仮設梁を掛け渡し、当該鋼製仮設梁へ機械架台を搭載することによって、機械架台からの荷重を鋼製仮設梁を介して主柱へ伝達するので、鉄筋コンクリート構造の躯体で、機械の荷重を支持できるという優れた効果を奏し得る。
【図面の簡単な説明】
【図１】本発明の機械支持方法の実施の形態の一例を示す概念図である。
【図２】図１のＩＩ−ＩＩ矢視図である。
【図３】図１のＩＩＩ−ＩＩＩ矢視図である。
【図４】鉄筋コンクリート構造部材の一例を示す概念図である。
【図５】従来の鉄筋コンクリート構造部材によるビル躯体構築作業の一例を示す概念図である。
【符号の説明】
２柱材
４梁受
６主柱
７梁材
１１第１の鋼製仮設梁
１２第２の鋼製仮設梁
１３架台（機械架台）
１６第３の鋼製仮設梁
１７第４の鋼製仮設梁[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a machine support method.
[0002]
[Prior art]
In recent years, a method of constructing a building frame by sequentially assembling reinforced concrete structural members produced in a factory at a building construction site has been implemented.
[0003]
FIG. 4 shows an example of a reinforced concrete structural member. This structural member includes a column member 2 in which intermediate portions of a plurality of reinforcing bars 1 extending vertically are embedded in a concrete columnar body and both end portions of the reinforcing bar 1 are exposed. The base end portion is fixed to the reinforcing bar 1 and includes a beam receiver 4 in which the base end portions of the plurality of reinforcing bars 3 extending in the lateral direction are embedded in the concrete projecting portion and integrated with the concrete columnar body.
[0004]
In building the building frame, as shown in FIG. 5, the crane 5 installed outside the building building place is connected to the column members 2 in order, and the main columns 6 are erected at four locations while facing the beams. Each end of the beam member 7 is connected to the support 4.
[0005]
As shown in FIG. 4, the beam member 7 is formed by embedding intermediate portions of a plurality of reinforcing bars 8 extending in the lateral direction in a concrete beam. The connection of the beam member 7 to the beam receiver 4 is performed by the reinforcing bars 3 and the reinforcing bars. 8 mutual welding and filling of the concrete into the gap between the concrete column and the concrete protrusion.
[0006]
The crane 5 is of a climbing type, and the mast 9 is connected in order so as to correspond to the increase in the height of the frame to secure the lift, and a predetermined portion of the mast 9 is connected to the building frame by the support 10. The crane 5 is supported.
[0007]
[Problems to be solved by the invention]
However, if there is an existing building around the building construction site, the crane 5 cannot be installed at an optimum position for building the building frame, and the building construction cannot be performed efficiently.
[0008]
In addition, it is conceivable that the crane 5 is supported by the beam member 7 incorporated in the building frame so that the crane 5 is positioned at the center part of the building frame. It is not realistic to interpose a load supporting reinforcement between the materials 2.
[0009]
The present invention has been made in view of the above-described circumstances, and an object of the present invention is to enable a reinforced concrete structural frame to support the load of a machine.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, in the machine support method of the present invention, the reinforced concrete structure column members provided with the beam supports protruding in the lateral direction are connected in order, and the main columns are erected at the four locations while the beam supports facing each other. When constructing a building frame by connecting each end of the beam material to the first steel temporary beam, the first steel temporary beam is interposed between two predetermined main columns. Each end is placed on the upper surface of the opposite beam support, and a second steel temporary beam is interposed between the other two main columns, and each end of the second steel temporary beam is placed. After placing the machine stand on the first and second steel temporary beams and mounting the first and second steel temporary beam machine stands on , Each end of the third steel temporary beam is placed on the upper surface of the beam receiver facing above the first steel temporary beam, and each end of the fourth steel temporary beam is Opposite of steel temporary beams The first and second steel temporary beams are mounted on the third and fourth steel temporary beams, and the third and fourth steel temporary beam machines are mounted on the upper surface of the support. After mounting the gantry, each end of the first steel temporary beam is placed on the upper surface of the beam support facing above the third steel temporary beam, and each end of the second steel temporary beam is placed. The end is placed on the upper surface of the beam support facing the upper side of the fourth steel temporary beam, and the mechanical mount on the third and fourth steel temporary beams is made of the first and second steel beams. Repeatedly install the temporary beams.
[0011]
In the machine support method according to the present invention, the first and second steel temporary beams are bridged over the beam support that is integrally formed with the main column and has a predetermined strength. A third and fourth steel temporary installation is carried out on a beam support which is mounted integrally with the main column and has a predetermined strength by mounting a machine mount on the temporary beam and transmitting the load of the machine to the main column. The beam is routed, the machine base mounted on the first and second steel temporary beams is transferred to the third and fourth steel temporary beams, and the load of the machine is transmitted to the main column. 1. Overhanging the second steel temporary beam over the beam support and mounting the mechanical mount on the steel temporary beam; and the third and fourth steel temporary beams over the beam support The work of mounting the machine stand on the fourth steel temporary beam is alternately performed, and the load of the machine is transmitted to the main column while using the two steel temporary beams alternately.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0013]
1 to 3 show an example of an embodiment of a machine support method according to the present invention. In the figures, the same reference numerals as those in FIGS. 4 and 5 denote the same components.
[0014]
In this machine support method, the reinforced concrete structure pillars 2 provided with the beam supports 4 protruding in the lateral direction are connected in order by a wrecker or the like initially introduced at the building construction site, and four places at predetermined positions in the building construction site are connected. A main pillar 6 is erected, and each end of the beam 7 is connected to the opposite beam receiver 4 to construct a lower floor portion of the building frame.
[0015]
Thereafter, a first steel temporary beam 11 is interposed between two predetermined main pillars 6, and the respective ends of the first steel temporary beam 11 are opposed to the upper surface of the beam receiver 4 facing each other. The beam receiver 4 is mounted and the second steel temporary beam 12 is interposed between the other two main pillars 6 and the ends of the second steel temporary beam 12 are opposed to each other. Place on top.
[0016]
A climbing crane gantry 13 is mounted on the first and second steel temporary beams 11 and 12, and the crane is assembled on the gantry 13.
[0017]
The gantry 13 includes a gantry body 14 and four support legs 15 that are provided at the front and rear ends of the gantry body and have a telescopic structure that can protrude in the lateral direction.
[0018]
When the gantry 13 is mounted on the steel temporary beams 11 and 12, the extensible function of the support leg 15 is utilized so that the tip of the support leg 15 is located at the optimum position on the upper surface of the steel temporary beam 11 and 12. The length of the support leg 15 is set so as to be positioned.
[0019]
After that, the main column 6 was erected by connecting the column members 2 of the reinforced concrete structure in order with a crane, and each end of the beam member 7 was connected to the opposite beam receiver 4 to construct the second building frame. Build the hierarchical part of the stage.
[0020]
After constructing the desired layer portion, each end of the third steel temporary beam 16 is further moved relative to the upper portion of the first steel temporary beam 11 between the two predetermined main pillars 6. The end of the fourth steel temporary beam 17 is placed on the upper surface of the beam receiver 4 of a predetermined level, and the end of the fourth steel temporary beam 12 is opposed to the upper side of the second steel temporary beam 12. It mounts on the upper surface of the beam receiver 4 (refer FIG. 1).
[0021]
Subsequently, the mast 9 is lifted using the crane lifting device, whereby the gantry 13 is pulled up via the mast 9 and mounted on the upper surfaces of the third and fourth steel temporary beams 16 and 17.
[0022]
At this time, the length of the support leg 15 is shortened so that the beam member 7 in the middle of the rise of the gantry 13 and the tip of the support leg 15 do not interfere with each other.
[0023]
Further, the main column 6 is erected by connecting the column members 2 of the reinforced concrete structure in order by a crane, and each end of the beam member 7 is connected to the opposite beam receiver 4 to construct a third building frame. Build the hierarchical part of the stage.
[0024]
When it is necessary to move the crane installation position to the upper floor, the first steel temporary beam 11 is lifted from the set position, and each end of the steel temporary beam 11 is made of the third steel. It is placed on the upper surface of the beam receiver 4 at a predetermined level facing above the temporary beam 16, the second steel temporary beam 12 is lifted from the set position, and each end of the steel temporary beam 12 is placed. Is placed on the upper surface of the beam receiver 4 at a predetermined level facing above the fourth steel temporary beam 17.
[0025]
Next, the first and second steel temporary installations in which the frame 13 on the upper surfaces of the third and fourth steel temporary beams 16 and 17 are moved to the upper floor by performing the above-described lifting operation of the mast 9 again. Mounted on the upper surface of the beams 11 and 12.
[0026]
Thereafter, the construction of the building frame is advanced by repeating the above-described work.
[0027]
As described above, in the machine support method of the present invention shown in FIGS. 1 to 3, the first, The second steel temporary beams 11, 12 or the third and fourth steel temporary beams 16, 17 are passed over and the load of the mount 13 mounted on the upper surface of these steel temporary beams 11, 12, 16, 17 is loaded. Is transmitted to the main column 6 through the steel temporary beams 11, 12, 16, 17 and the beam receiver 4, so that a machine such as a crane can be supported by the reinforced concrete structure.
[0028]
It should be noted that the machine support method of the present invention is not limited to the above-described embodiment, and various changes can be made without departing from the scope of the present invention.
[0029]
【The invention's effect】
As described above, in the machine support method of the present invention, a pair of steel temporary beams are spanned over a beam receiver that is integrally formed with the main column of the reinforced concrete structure and has a predetermined strength. By mounting the machine base on the temporary steel beam, the load from the machine base is transmitted to the main column via the steel temporary beam, so that the reinforced concrete structure can support the load of the machine. obtain.
[Brief description of the drawings]
FIG. 1 is a conceptual diagram showing an example of an embodiment of a machine support method of the present invention.
FIG. 2 is a view taken in the direction of arrows II-II in FIG.
FIG. 3 is a view taken in the direction of arrows III-III in FIG.
FIG. 4 is a conceptual diagram showing an example of a reinforced concrete structural member.
FIG. 5 is a conceptual diagram showing an example of building building construction work by a conventional reinforced concrete structural member.
[Explanation of symbols]
2 Column material 4 Beam support 6 Main column 7 Beam material 11 First steel temporary beam 12 Second steel temporary beam 13 Mounting platform (mechanical mounting)
16 Third steel temporary beam 17 Fourth steel temporary beam

Claims

Build the building frame by connecting each end of the beam material to the opposite beam supports while connecting the pillars of the reinforced concrete structure with the beam supports protruding in the horizontal direction in order to erect the main pillar at four places. In doing so, a first steel temporary beam is interposed between two predetermined main pillars, and each end of the first steel temporary beam is placed on the upper surface of the beam supports facing each other. Then, a second steel temporary beam is interposed between the other two main pillars, and each end of the second steel temporary beam is placed on the upper surface of the opposite beam support. After the first and second steel temporary beams are mounted on the machine frame and the first and second steel temporary beams are mounted on the machine frame, each end of the third steel temporary beam is connected to the first steel temporary beam. The steel temporary beam is placed on the upper surface of the beam support facing the upper side of the steel temporary beam, and each end of the fourth steel temporary beam is placed on the upper surface of the second steel temporary beam. On the upper surface, on the first and second steel temporary beams After mounting the machine mount on the third and fourth steel temporary beams and mounting the third and fourth steel temporary beam mechanical mounts, each end of the first steel temporary beam is connected to the third steel temporary beam. The upper surface of the beam receiver which is placed on the upper surface of the beam support facing above the steel temporary beam, and each end of the second steel temporary beam is opposed to the upper surface of the fourth steel temporary beam. A machine support method characterized by sequentially repeating the work of mounting the machine mounts on the third and fourth steel temporary beams on the first and second steel temporary beams.