JP2010144388A - Method for constructing skeleton of steel-reinforced concrete structure - Google Patents

Method for constructing skeleton of steel-reinforced concrete structure Download PDF

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JP2010144388A
JP2010144388A JP2008321844A JP2008321844A JP2010144388A JP 2010144388 A JP2010144388 A JP 2010144388A JP 2008321844 A JP2008321844 A JP 2008321844A JP 2008321844 A JP2008321844 A JP 2008321844A JP 2010144388 A JP2010144388 A JP 2010144388A
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steel frame
steel
column
frame
construction
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JP5322216B2 (en
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Kaoru Sakai
薫 酒井
Shoichi Hirokawa
正一 廣川
Tomoyuki Sasaki
友幸 佐々木
Toshiichi Oki
敏一 大木
Yukiko Matsuura
由紀子 松浦
Masaki Kumagai
正樹 熊谷
Kiichi Furusawa
希一 古澤
Tomoo Tsuchiya
智雄 土屋
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Haseko Corp
Hasegawa Komuten Co Ltd
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Haseko Corp
Hasegawa Komuten Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for constructing a skeleton of steel-reinforced concrete structure, which can be inexpensively transported in state of being compactly put together during transportation, and which can secure its safety by simplifying assembly on a material management work area on a job site. <P>SOLUTION: A member 12 preassembled in a shape having one horizontal steel frame cross two vertical steel frames, in which joint portions for connecting the beam steel frame 2 between the two column steel frames 1 and further connecting the beam steel frame to both the column steel frames are formed and in which a column reinforcement and a beam reinforcement are arranged, and a beam-preassembled member 7, which has the beam steel frame and the beam reinforcement connected between the joint portions, are field-assembled in the material management work area 10 on the job site. Subsequently, the member preassembled in the shape having the one horizontal steel frame cross the two vertical steel frames is conveyed to a construction story by a crane, and connected to the column steel frame on a lower story; and the beam-preassembled member is conveyed to the construction story by the crane, and connected to the member preassembled in the shape having the one horizontal steel frame cross the two vertical steel frames, so that the steel frame can be constructed in such a manner that the one steel frame is provided on each story. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、鉄骨鉄筋コンクリート造の建築物を構築するための躯体施工法に関する。   The present invention relates to a frame construction method for constructing a steel reinforced concrete building.

鉄骨鉄筋コンクリートの建築物では、鉛直方向に配置された柱鉄骨と水平方向に配置された梁鉄骨を組み合わせて躯体が形成される。また、各鉄骨にはその周囲に柱筋、梁筋が配筋されている。躯体施工法は鉄骨の全階建て方を完了した後に、各階毎に型枠工事、鉄筋工事を、コンクリート打設といった躯体工事を行う方法から、数階を1節として躯体の施工を行うもの、さらには1階ごとに躯体の施工を行う方法がある。   In a steel reinforced concrete building, a frame is formed by combining column steel frames arranged in the vertical direction and beam steel frames arranged in the horizontal direction. Each steel frame has column bars and beam bars around it. The frame construction method is to construct the frame with several sections as one section from the method of performing frame work such as formwork, rebar construction, concrete placement after completing the method of building the whole floor of the steel frame, In addition, there is a method of constructing a frame for each floor.

特許文献1(特開2000−17727号公報)には、1階毎に鉄骨の建て方を行う1層1節の鉄骨の建て方を行う躯体施工法が記載されている。この躯体施工法では、2本の鉄骨柱と2本の鉄骨大梁を組み付けて形成された鉄骨ユニットを現地に輸送し、これをクレーンによって施工階に吊り込んで組み付けることにより1層1節の鉄骨の建て方を行う。ユニット化された鉄骨柱と鉄骨大梁を施工階に揚重することにより、クレーンの使用回数を少なくして施工にかかる時間および費用の低減を図ることができる。
特開2000−17727号公報
Patent Document 1 (Japanese Patent Laid-Open No. 2000-17727) describes a frame construction method for constructing a one-layer, one-section steel frame for constructing a steel frame for each floor. In this case construction method, a steel unit formed by assembling two steel columns and two steel beams is transported to the site, and this is hung on the construction floor by a crane and assembled to make a one-layer, one-section steel frame. How to build By lifting the unitized steel columns and steel beams to the construction floor, it is possible to reduce the number of times the crane is used and reduce the time and cost for the construction.
JP 2000-17727 A

ところが、特許文献1に記載の躯体施工法では、歪な形状の鉄骨ユニットを現場まで輸送する必要があり、これが輸送費の増大を招く要因となっていた。また、左右対称でない鉄骨ユニットを施工階において組み付けるときにはバランスが悪いため施工性が悪く、歪みのない建造が困難になるという問題もあった。   However, in the case construction method described in Patent Document 1, it is necessary to transport a steel frame unit having a distorted shape to the site, which causes an increase in transportation costs. In addition, when assembling a steel frame unit that is not symmetrical on the construction floor, there is a problem that the construction is not good because the balance is poor and construction without distortion is difficult.

本発明は上述の事柄を考慮に入れてなされたものであって、その目的は、現場への輸送時にはコンパクトに収納した状態で安価にて輸送できると共に、現場の資材管理作業場における組み付けを簡略化して、その安全性を確保できる鉄骨鉄筋コンクリート造の躯体施工法を提供することにある。   The present invention has been made in consideration of the above-mentioned matters, and the purpose of the present invention is that it can be transported at a low cost in a compactly stored state when transported to the site and simplifies the assembly at the material management work site at the site. Therefore, it is to provide a steel frame reinforced concrete frame construction method that can ensure its safety.

上記目的を達成するために、本発明は、現場の資材管理作業場において二本の柱鉄骨の間に梁鉄骨を連結し両柱鉄骨にさらに梁鉄骨を連結するための継手部を形成し且つ柱筋及び梁筋を配筋したサの字先組部材と、前記継手部間に接続される梁鉄骨と梁筋を有する梁先組部材とを形成した後に、クレーンによって前記サの字先組部材を施工階に搬送して下層階の柱鉄骨に接続するとともにクレーンによって前記梁先組部材を施工階に搬送してサの字先組部材と連結して1層1節の鉄骨の建て方を行うことを特徴とする鉄骨鉄筋コンクリート造の躯体施工法を提供する(請求項1)。   In order to achieve the above-mentioned object, the present invention provides a column for connecting a beam steel frame between two column steels in a material management work site on the site, further connecting a beam steel frame to both column steel frames, and a column. After forming a beam-shaped assembling member in which a bar and a beam are arranged, and a beam-shaped assembling member having a beam steel frame and a beam that are connected between the joints, the crane-shaped assembling member is formed by a crane. Is transported to the construction floor and connected to the pillar steel frame of the lower floor, and the beam tip assembly member is transported to the construction floor by a crane and connected to the U-shaped tip assembly member to construct a steel structure of one layer and one section. Provided is a method for constructing a steel-framed reinforced concrete structure characterized in that it is carried out (Claim 1).

前記躯体施工法では、現場の資材管理作業場においてサの字先組部材と梁先組部材を組み立てるので、現場へは、直線的な鉄骨や鉄筋等の資材を搬入すればよく、たとえ、柱鉄骨に予め前記梁鉄骨を連結するための継手部を接続して十字先組部材を形成して現場まで搬送し、現場の資材管理作業場において一対の十字先組部材間に前記梁先組部材を連結して前記サの字先組部材を形成する場合(請求項2)であっても、十字先組部材はサの字先組部材に比してコンパクトであり、比較的に無駄なく密に並べて配置した状態で搬送することができるので輸送費を削減することができる。   In the above-mentioned frame construction method, since the U-shaped and beam-end assembled members are assembled at the on-site material management workshop, it is only necessary to carry materials such as straight steel frames and rebars to the site. The joint for connecting the beam steel frame is connected in advance to form a cross-tip assembly member and transported to the site, and the beam-end assembly member is connected between a pair of cross-tip assembly members in the on-site material management workshop. Even in the case of forming the U-shaped tip assembly member (Claim 2), the cross-tip assembly member is more compact than the S-shaped tip assembly member, and is arranged relatively closely without waste. Since it can convey in the state arrange | positioned, a transportation cost can be reduced.

また、サの字先組部材は現場の資材管理作業場において組付けられるので、この組付けを行うときに高所作業を必要としておらず、安全を確保した状態でより正確な組付けを行うことができる。加えて、サの字先組部材は左右のバランスが良いので、これをクレーンによって施工階に搬送するときに安定し、下層階の鉄骨に接続するときにも偏った力がかかる部分がないため、1層1節の鉄骨の建て方を行う場合にも、正確な建て方を容易に行うことができる。サの字先組部材間に梁先組部材を連結することにより1層分の鉄筋の建て方を終えることができる。   In addition, since the U-shaped tip assembly member is assembled at the on-site material management workshop, there is no need to work at a high place when performing this assembly, and a more accurate assembly is performed while ensuring safety. Can do. In addition, because the U-shaped tip assembly has a good left / right balance, it is stable when transported to the construction floor by a crane, and there is no part where biased force is applied when connecting to the steel frame of the lower floor Even when building a steel layer of one layer and one section, an accurate building method can be easily performed. By connecting the beam tip assembly member between the U-shaped tip assembly members, it is possible to finish the construction of the reinforcing bars for one layer.

また、請求項2に記載の発明のように、前記柱鉄骨に予め前記梁鉄骨を連結するための継手部を接続して十字先組部材を形成して現場まで搬送し、現場の資材管理作業場において一対の十字先組部材間に前記梁先組部材を連結して前記サの字先組部材を形成する場合には、柱鉄骨に剛接合される継手部は梁先組部材を構成する梁鉄骨に比べて高い剛性を備えたものにすることにより製造コストの削減と強度の確保を両立することができる。   Further, as in the invention according to claim 2, a joint portion for connecting the beam steel frame to the column steel frame is connected in advance to form a cross-tip assembled member and transported to the site. When the beam tip assembly member is connected between a pair of cross tip assembly members to form the U-shaped tip assembly member, the joint portion rigidly joined to the column steel frame is the beam constituting the beam tip assembly member. By making it higher in rigidity than a steel frame, it is possible to achieve both reduction in manufacturing cost and securing of strength.

なお、十字先組部材を構成する柱鉄骨に対する継手部の接続状態は、この十字先組部材が配置される位置によって異なる。すなわち、建造物の角部に配置される十字先組部材には2本の継手部が平面視L字状になるように接続し、建造物の外周に配置される十字先組部材には3本の継手部が平面視T字状になるように接続し、建造物の内部に配置される十字先組部材には4本の継手部が平面視十字状になるように接続する。何れの十字先組部材も側面視形状は十字状である。   In addition, the connection state of the joint part with respect to the column steel which comprises a cross-tip assembly member changes with positions where this cross-tip assembly member is arrange | positioned. That is, two joint portions are connected to the cross-shaped assembly member arranged at the corner of the building so as to be L-shaped in a plan view, and 3 to the cross-shaped assembly member arranged on the outer periphery of the building. The two joint portions are connected so as to have a T-shape in plan view, and the four joint portions are connected so as to have a cross-shape in plan view, which are arranged inside the building. Each cross-tip assembly member has a cross shape in a side view.

前記継手部をその梁成の1〜2倍の長さに形成する場合(請求項3)には、柱鉄骨に剛接合された継手部と継手部間に接続される梁先組部材を構成する梁鉄骨に、その中央側の梁鉄骨の下端と、柱鉄骨近くの梁鉄骨の上端に引張力が作用するので、その曲げモーメント図を描いたときに継手部と梁先組部材の接続部の位置において曲げモーメントの反曲点となり、この接続部には引張りも圧縮も作用することがない。すなわち、梁成の1〜2倍の長さの継手部を形成することにより、継手部と梁先組部材の接続部を前記反曲点の位置に合わせることができ、これによって建造物の信頼性を引き上げることができる。   When the joint portion is formed to be 1 to 2 times as long as its beam (Claim 3), the joint portion rigidly joined to the column steel frame and a beam tip assembly member connected between the joint portions are configured. Since the tensile force acts on the lower end of the beam steel frame on the center side and the upper end of the beam steel frame near the column steel, the joint of the joint and the beam assembly member is drawn when the bending moment diagram is drawn. In this position, it becomes an anti-bending point of the bending moment, and neither tension nor compression acts on this connecting portion. That is, by forming a joint part that is 1 to 2 times as long as the beam, the joint part and the connecting part of the beam tip assembly member can be aligned with the position of the inflection point, thereby improving the reliability of the building. Can raise the sex.

デッキプレートを前記梁先組部材に架設した小梁鉄骨の上に敷設し、このデッキプレートを上層階の施工時における足場とする場合(請求項4)には、施工階毎にコンクリート打設を行うことなく足場を確保することができるので、速やかな施工を行なうことができる。デッキプレートによって形成される足場は高所作業を無くして、作業者の安全を確保するものとなる。なお、施工階における鉄骨の建て方を行った後に、この階の壁筋および梁鉄骨間に渡る床筋を配置して、コンクリート打設を行なってもよいことはいうまでもない。   When a deck plate is laid on a small beam steel frame built on the beam end assembly member and this deck plate is used as a scaffold during construction of an upper floor (Claim 4), concrete placement is performed for each construction floor. Since it is possible to secure the scaffold without performing, it is possible to perform the construction promptly. The scaffold formed by the deck plate eliminates the work at high places and ensures the safety of the worker. Needless to say, after the construction of the steel frame on the construction floor, concrete placement may be performed by arranging the floor reinforcement between the wall reinforcement and the beam steel of this floor.

上記構成の躯体施工法によれば、鉄骨の建て方を行うときに、高所作業および作業者の上下方向の移動を可能な限り少なくして作業の安全性を確保することができる。また、鉄骨の現場までの輸送費、クレーンによる揚重作業にかかるコストの削減および作業時間の低減を図ることができる。さらに、鉄骨の建て方後における各サの字先組部材の配置時におけるバランスが良いので、作業効率が良いだけでなく施工後の安定性が良い。   According to the frame construction method having the above-described configuration, when building a steel frame, it is possible to secure work safety by minimizing the height work and the movement of the worker in the vertical direction. In addition, it is possible to reduce the cost of transporting the steel frame to the site, the cost of lifting work by a crane, and the work time. Furthermore, since the balance at the time of arrangement | positioning of each U-shaped tip assembly member after the construction of a steel frame is good, not only work efficiency is good but the stability after construction is good.

また、現場の資材管理作業場において先組部材を形成することにより、鉄骨への吊り足場、この足場の昇降用タラップ、垂直・水平ブレース等の仮設費の低減を図ることができる。加えて、デッキプレートなどによって形成された施工階のフロアに脚立などを置くことが可能となるので、足場の設置を不要とすることも可能である。さらに、鉄骨の連結および鉄筋の配筋などを躯体工事の一連のサイクル工程の中に組み込むことが可能であるから、労務の平準化を図ることができる。   In addition, by forming a pre-assembled member in the on-site material management workshop, temporary costs such as a scaffold suspended from a steel frame, a lifting / lowering trap for the scaffold, and vertical and horizontal braces can be reduced. In addition, since it becomes possible to place a stepladder on the floor of the construction floor formed by a deck plate or the like, it is possible to eliminate the need to install a scaffold. Furthermore, since it is possible to incorporate the connection of steel frames and the reinforcement of reinforcing bars into a series of cycle processes of the frame construction, it is possible to level the labor.

柱鉄骨に剛接合される継手部と継手部間に連結される梁鉄骨の鉄骨メンバーを変更することにより、十分な強度を有しながら製造コストを低く抑えた躯体の施工を行うことができる。   By changing the steel member of the beam steel frame connected between the joint part rigidly connected to the column steel frame and the joint part, it is possible to perform the construction of the housing having a sufficient strength and a low manufacturing cost.

図1,2は本発明の実施形態にかかる鉄骨鉄筋コンクリート造の躯体施工法を説明するものであり、図1は鉄骨鉄筋コンクリート造の躯体施工法の全体を説明する図、図2は躯体施工法の各ステップを説明する図である。   1 and 2 are diagrams for explaining a steel reinforced concrete frame construction method according to an embodiment of the present invention. FIG. 1 is a diagram for explaining a steel frame reinforced concrete frame construction method. FIG. It is a figure explaining each step.

図1において、1は鉛直方向に配置される鉄骨からなる柱鉄骨、2は水平方向に配置される鉄骨からなる梁鉄骨、3は柱や梁の主筋、4はフープ筋とスターラップ、5は主筋用の継手である。   In FIG. 1, 1 is a column steel frame made of a steel frame arranged in a vertical direction, 2 is a beam steel frame made of a steel frame arranged in a horizontal direction, 3 is a main bar of a column or beam, 4 is a hoop and a stirrup, It is a joint for main bars.

また、本実施形態における梁鉄骨2は、一本の柱鉄骨1に直角方向に剛接合された継手部6を構成する部分2Aと、この継手部6間に連結される梁先組部材7を構成する部分2Bとに分かれており、梁鉄骨2Aは梁鉄骨2Bと異なる鉄骨メンバーからなり、梁鉄骨2Aは梁鉄骨2Bより高い剛性を備え、梁鉄骨2Bは梁鉄骨2Aに比べて軽量である。また、前記継手部6の長さは梁成の1〜2倍の長さに形成されている。   Further, the beam steel frame 2 in the present embodiment includes a portion 2A constituting a joint portion 6 rigidly joined to a single column steel frame 1 in a perpendicular direction, and a beam tip assembly member 7 connected between the joint portions 6. The beam steel frame 2A is composed of a different steel member from the beam steel frame 2B. The beam steel frame 2A has higher rigidity than the beam steel frame 2B, and the beam steel frame 2B is lighter than the beam steel frame 2A. . Moreover, the length of the joint portion 6 is formed to be 1 to 2 times the length of the beam.

さらに、柱鉄骨1には予め複数の継手部6を接続して十字先組部材8を構成している。これらの部材1〜8は現場の資材管理作業場10まで搬送する。なお、部材1〜8はその搬送時には容易に重ねることができるものであるので、運送にかかるコストを削減することができる。   Further, a cross-tip assembled member 8 is configured by connecting a plurality of joint portions 6 to the column steel frame 1 in advance. These members 1 to 8 are transported to the on-site material management workshop 10. In addition, since the members 1-8 can be easily piled up at the time of the conveyance, the cost concerning transportation can be reduced.

なお、柱鉄骨2に対する継手部6の接続状態は、この十字先組部材8が配置される位置によって異なる。すなわち、建物の角部に配置される十字先組部材8には2本の継手部が平面視L字状になるように接続し、建物の外周に配置される十字先組部材8には3本の継手部が平面視T字状になるように接続し、建物の内部に配置される十字先組部材8には4本の継手部が平面視十字状になるように接続する。何れの十字先組部材8も側面視形状は十字状である。   In addition, the connection state of the joint part 6 with respect to the column steel frame 2 changes with positions where this cross-tip assembly member 8 is arrange | positioned. That is, two joint parts are connected to the cross-shaped member 8 arranged at the corner of the building so as to be L-shaped in a plan view, and 3 are attached to the cross-shaped member 8 arranged on the outer periphery of the building. The joint portions of the two are connected so as to have a T shape in plan view, and the four joint portions are connected so as to have a cross shape in the plan view, which is arranged inside the building. Each cross-tip assembly member 8 has a cross shape in a side view.

11は資材管理作業場10に設置され、2本の柱鉄骨1を所定の間隔をおいて立設支持した状態でサの字先組部材12を形成するためのサの字先組支持台、13はこのサの字先組支持台11の周囲に設けた足場、14は資材管理作業場10に設置された梁鉄骨2を支持する梁先組支持台、15はこの梁先組支持台14の周囲に設けた足場である。   11 is installed in the material management work place 10, and is formed in a U-shaped tip assembly support base for forming a U-shaped tip assembly member 12 in a state where the two column steel frames 1 are erected and supported at a predetermined interval. Is a scaffold provided around the U-shaped support assembly 11, 14 is a support assembly for supporting the beam steel frame 2 installed in the material management work place 10, and 15 is a periphery of the support assembly 14. Is a scaffolding.

16は鉄骨の建て方が行われている施工階、17はこの施工階16のフロア、18は下層階に形成されたコンクリート打設部分である。なお、本実施形態ではフロア17は各梁先組部材7や小梁鉄骨(図示せず)に架設したデッキプレート又は床型枠からなる。   Reference numeral 16 denotes a construction floor on which a steel frame is built, 17 denotes a floor of the construction floor 16, and 18 denotes a concrete placement portion formed on a lower floor. In the present embodiment, the floor 17 is composed of a deck plate or a floor form frame constructed on each beam tip assembly member 7 and a small beam steel frame (not shown).

すなわち、本実施形態の躯体施工法では、まず、前記柱鉄骨1に梁鉄骨2Bを連結するための継手部2Aを予め接続してなる十字先組部材8、梁鉄骨2A、主筋用の鉄筋3、フープ筋とスターラップ4、主筋用の継手5、小梁鉄骨(図示せず)等の資材を現場まで輸送する。   That is, in the frame construction method of the present embodiment, first, the cross-tip assembled member 8 in which the joint portion 2A for connecting the beam steel frame 2B to the column steel frame 1 is connected in advance, the beam steel frame 2A, and the main reinforcing bar 3 The material such as the hoop and the stirrup 4, the joint 5 for the main reinforcement, the steel beam (not shown) is transported to the site.

次いで、現場の資材管理作業場10に設置されたサの字先組支持台11に2本の柱鉄骨1,1を立設支持させ、各柱鉄骨1,1に取り付けられた継手部2A,2A間に梁鉄骨2Bを連結し、かつ、柱鉄骨1の周囲に主筋3とフープ筋4による柱筋を配筋し、梁鉄骨2の周囲には主筋3とスターラップ4による梁筋を配筋して、サの字先組部材12を地組み
する(地面近くの低位置で形成する)。
Next, two column steel frames 1 and 1 are supported upright on a U-shaped front end support base 11 installed in the material management work site 10 on the site, and joint portions 2A and 2A attached to the column steel frames 1 and 1 are installed. Beam steel frame 2B is connected between them, and main bars 3 and hoop bars 4 are arranged around column steel 1, and main bars 3 and stirrup 4 are arranged around beam steel 2. Then, the U-shaped tip assembly member 12 is grounded (formed at a low position near the ground).

一方、梁先組支持台14には別の梁鉄骨2Bを搭載し、この梁鉄骨2Bの周囲に主筋3とスターラップ4による梁筋を配筋して梁先組部材7を地組みする。この先組部材7,12の形成時に、作業者は資材管理作業場10に設置された足場13,15を活用して楽に作業を行うことができるだけでなく、資材管理作業場10の地表面に近い位置において作業を行うことができるので、作業者の安全性を確保することができる。また、支持台11,14がそれぞれの部材を安定して支持した状態で先組部材7,12の組付を行うことができるので、歪みの原因となるアンバランスが発生することがなく、より正確な組付を容易に行うことができる。   On the other hand, another beam steel frame 2B is mounted on the beam tip assembly support base 14, and the beam tip assembly member 7 is grounded by arranging the beam bars of the main bars 3 and the stirrup 4 around the beam steel frame 2B. At the time of forming the pre-assembled members 7 and 12, the operator can not only easily work using the scaffolds 13 and 15 installed in the material management workshop 10, but also at a position close to the ground surface of the material management workshop 10. Since the work can be performed, the safety of the worker can be ensured. In addition, since the pre-assembled members 7 and 12 can be assembled in a state where the support bases 11 and 14 stably support the respective members, there is no occurrence of unbalance that causes distortion, and more Accurate assembly can be easily performed.

図2(A)に示すように、現場の資材管理作業場10において一対の十字先組部材8を所定の位置に配置し、図2(B)に示すように、両梁鉄骨2A間に梁鉄骨2Bを例えばボルトナットとスプライスプレートを用いて連結する。図2(C)は、フープ筋4とスターラップ4を所定間隔に拡げて主筋3に結束等の手段で固定して、継手の近辺以外の配筋を完了した状態を示す。なお、このようにしてサの時先組部材12を形成する。   As shown in FIG. 2 (A), a pair of cross-tip assembled members 8 are arranged at predetermined positions in the on-site material management work place 10, and as shown in FIG. 2 (B), a beam steel frame between the two beam steel frames 2A. 2B is connected using, for example, a bolt nut and a splice plate. FIG. 2C shows a state in which the hoop bars 4 and the stirrup 4 are expanded to a predetermined interval and fixed to the main bars 3 by means such as tying, and the bar arrangement other than the vicinity of the joint is completed. In this way, the leading assembly member 12 is formed in the above manner.

次いで、図2(D)に示すように、形成された前記サの字先組部材12をクレーンによって施工階に搬送し、施工階のフロア17から突出している下層階の柱鉄骨および柱筋に接続する。このとき、鉄骨1同士は例えばボルトナットとスプライスプレートなどを用いて連結し、主筋3同士は主筋用継手5を用いて接続する。主筋3の接続部は1階分の柱鉄骨1の中間部となるように配置しているので、柱鉄骨1および主筋3の接続作業をフロア17上の作業者が容易に行うことができる。   Next, as shown in FIG. 2 (D), the formed U-shaped tip assembly member 12 is transported to the construction floor by a crane, and is applied to the column steel frames and the reinforcing bars on the lower floor protruding from the floor 17 of the construction floor. Connecting. At this time, the steel frames 1 are connected to each other using, for example, a bolt nut and a splice plate, and the main bars 3 are connected to each other using a main bar joint 5. Since the connection part of the main reinforcement 3 is arranged so as to be an intermediate part of the column steel frame 1 for one floor, the operator on the floor 17 can easily perform the connection work of the column steel frame 1 and the main reinforcement 3.

上述の手順によって、複数のサの字先組部材12をフロア17上に並べて配置したのちに、隣接するサの字先組部材12間の継手部6に前記梁先組部材7を連結する。このとき、梁鉄骨2A,2Bは例えばボルトナットとスプライスプレートなどを用いて連結し、主筋3同士は主筋用継手5を用いて接続する。なお、サの字先組部材12は対称形状であるから、クレーンによって吊り上げた状態および設置状態の何れにおいてもバランスが良く、さらに精度の高い鉄骨の建て方を行うことができる。   After arranging a plurality of U-shaped tip assembly members 12 side by side on the floor 17 by the above-described procedure, the beam tip assembly member 7 is connected to the joint portion 6 between the adjacent S-shaped tip assembly members 12. At this time, the beam steel frames 2A and 2B are connected using, for example, a bolt nut and a splice plate, and the main bars 3 are connected to each other using a main bar joint 5. In addition, since the U-shaped tip assembly member 12 has a symmetrical shape, it has a good balance both in a state of being lifted by a crane and in an installed state, and a steel frame can be built with higher accuracy.

また、梁先組部材7とサの字先組部材12の接続を行った後に前記梁先組部材7に小梁鉄骨を架設して、その上にデッキプレートを敷設する。このデッキプレートは次の作業階(上層階)のフロア17となる。すなわち、現場のどの作業時においても作業者に高所作業や無駄な労力を消費させることがないので製造コストを引き下げることができる。   Further, after connecting the beam tip assembly member 7 and the U-shaped tip assembly member 12, a small beam steel frame is constructed on the beam tip assembly member 7, and a deck plate is laid thereon. This deck plate becomes the floor 17 of the next work floor (upper floor). In other words, the manufacturing cost can be reduced because the worker is not required to work at a high place or use unnecessary labor at any work on site.

本発明の実施形態にかかる躯体施工法の全体を示す図である。It is a figure showing the whole frame construction method concerning the embodiment of the present invention. 前記躯体施工法の要部方法を説明する図である。It is a figure explaining the principal part method of the said frame construction method.

符号の説明Explanation of symbols

1 柱鉄骨
2(2A,2B) 梁鉄骨
3 主筋
4 フープ筋、スターラップ
6 継手部
7 梁先組部材
8 十字先組部材
10 資材管理作業場
12 サの字先組部材
DESCRIPTION OF SYMBOLS 1 Column steel 2 (2A, 2B) Beam steel 3 Main reinforcement 4 Hoop reinforcement, stirrup 6 Joint part 7 Beam tip assembly member 8 Cross tip assembly member 10 Material management work place 12 S-shaped tip assembly member

Claims (4)

現場の資材管理作業場において二本の柱鉄骨の間に梁鉄骨を連結し両柱鉄骨にさらに梁鉄骨を連結するための継手部を形成し且つ柱筋及び梁筋を配筋したサの字先組部材と、前記継手部間に接続される梁鉄骨と梁筋を有する梁先組部材とを形成した後に、クレーンによって前記サの字先組部材を施工階に搬送して下層階の柱鉄骨に接続するとともにクレーンによって前記梁先組部材を施工階に搬送してサの字先組部材と連結して1層1節の鉄骨の建て方を行うことを特徴とする鉄骨鉄筋コンクリート造の躯体施工法。   In the on-site material management workshop, a steel frame is formed by connecting a beam steel frame between two column steel frames, forming a joint for connecting the beam steel frames to both column steel frames, and arranging the column bars and beam bars. After forming an assembled member, a beam steel frame connected between the joints, and a beam tip assembled member having a beam bar, the crane is transported to the construction floor by the crane and the column steel frame on the lower floor A steel-framed reinforced concrete frame construction characterized in that the beam tip assembly member is transported to a construction floor by a crane and connected to the U-shaped tip assembly member to construct a steel layer of one layer and one section. Law. 前記柱鉄骨には予め前記梁鉄骨を連結するための継手部を接続して十字先組部材を形成して現場まで搬送し、現場の資材管理作業場において一対の十字先組部材間に前記梁先組部材を連結して前記サの字先組部材を形成する請求項1に記載の鉄骨鉄筋コンクリート造の躯体施工法。   A joint for connecting the beam steel frame is connected to the column steel frame in advance to form a cross-shaped assembly member and transported to the site. The steel frame reinforced concrete structure construction method according to claim 1, wherein the members are connected to form the U-shaped tip assembly member. 前記継手部をその梁成の1〜2倍の長さに形成する請求項1または請求項2に記載の鉄骨鉄筋コンクリート造の躯体施工法。   The steel frame reinforced concrete frame construction method according to claim 1 or 2, wherein the joint portion is formed to have a length that is 1 to 2 times the beam length. デッキプレートを前記梁先組部材に架設した小梁鉄骨の上に敷設し、このデッキプレートを上層階の施工時における足場とする請求項1〜4の何れかに記載の鉄骨鉄筋コンクリート造の躯体施工法。   The steel frame reinforced concrete frame construction according to any one of claims 1 to 4, wherein a deck plate is laid on a small beam steel frame installed on the beam tip assembly member, and the deck plate is used as a scaffold during construction of an upper floor. Law.
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CN106759873A (en) * 2017-03-25 2017-05-31 河北合创建筑节能科技有限责任公司 A kind of new prefabricated integral frame structure prefabricated post is constructed with prefabricated beam connecting node

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