JP2009121184A - Steel-frame column to be connected to pile of steel-frame building, pile connection part structure for the same, and constructing method of the same - Google Patents

Steel-frame column to be connected to pile of steel-frame building, pile connection part structure for the same, and constructing method of the same Download PDF

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JP2009121184A
JP2009121184A JP2007298239A JP2007298239A JP2009121184A JP 2009121184 A JP2009121184 A JP 2009121184A JP 2007298239 A JP2007298239 A JP 2007298239A JP 2007298239 A JP2007298239 A JP 2007298239A JP 2009121184 A JP2009121184 A JP 2009121184A
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steel
column
pile
steel column
concrete
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JP5209278B2 (en
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Yuji Tooyama
裕史 遠山
Akifumi Takeda
彰文 武田
Kazuyoshi Hayashi
和善 林
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Okumura Corp
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Okumura Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a steel-frame column which is applied to a technique for inserting the steel-frame column into a hollow steel pipe provided in the pile head of a pile member without using a foundation beam or a footing and for joining it to the pile member with concrete placed into the hollow steel pipe, whose construction is simplified, and which is connected to the pile of a steel-frame building to secure good quality of joint to the pile, and to provide a pile connection part structure for the same, and its constructing method. <P>SOLUTION: The steel-frame column 1 is joined to the pile head of the pile member 2, installed on a ground G, inserted at its lower end inside the hollow steel pipe 3 being filled with the concrete C1, C2, and connected to the pile 4 of the steel-frame building connected to the pile member without using the foundation beam and the footing. The steel-frame column 1 is formed in a hollow boxed shape with a base plate 9. A column centering hole portion 5 is formed in the base plate, and a concrete placing hole porion 6 is formed in a side portion 1b. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、基礎梁やフーチングを用いずに、杭部材の杭頭部に設けた中空鋼管内に鉄骨柱を挿入し、当該中空鋼管内にコンクリートを打設することにより杭部材に鉄骨柱を接合するようにした工法に適用される鉄骨柱の構造の簡単化、並びにこの鉄骨柱によって杭との良好な接合品質を確保することが可能な鉄骨造建物の杭との連結に用いる鉄骨柱、鉄骨造建物の鉄骨柱と杭の連結部構造、並びにその施工法に関する。   The present invention inserts a steel column into a hollow steel pipe provided at the pile head of the pile member without using a foundation beam or footing, and places the steel column in the pile member by placing concrete in the hollow steel pipe. A steel column used for connection with a pile of a steel building, which can simplify the structure of the steel column applied to the method of joining, as well as ensure a good joint quality with the pile by this steel column; The present invention relates to a structure of a connecting portion between a steel column and a pile of a steel structure building and a construction method thereof.

基礎梁やフーチングを用いずに、杭部材の杭頭部に設けた中空鋼管内に鉄骨柱を挿入し、当該中空鋼管内にコンクリートを打設することにより、杭部材に鉄骨柱を接合するようにした工法として、特許文献1が知られている。   Without using foundation beams or footings, a steel column is inserted into the hollow steel pipe provided at the pile head of the pile member, and concrete is placed in the hollow steel pipe, so that the steel column is joined to the pile member. Patent Document 1 is known as the method of construction described above.

この特許文献1では、鉄骨柱の下端部の周面に予めアングル材等からなる取付ピースを溶接しておき、その取付ピースに溶接したナットに対してレベル調整ボルトを下向きに螺着しておく。そして、鉄骨柱の柱脚部を支持フレーム内に挿入し、レベル調整ボルトを介して鉄骨柱の重量を支持フレームに預けて仮支持しつつ、水平方向の位置決めおよびレベル調整を行う。しかる後に、接合鋼管内全体にコンクリートを充填するとともに、鉄骨柱の内部にも同レベルまでコンクリートを充填する。この際、ベースプレートに充分な大きさの中心孔を形成しておけば、鉄骨柱の内外のコンクリートの天端が自ずと揃うし、コンクリートの打設時にその浮力が鉄骨柱に作用することを防止できるとしている。   In Patent Document 1, a mounting piece made of an angle material or the like is welded in advance to the peripheral surface of the lower end portion of the steel column, and a level adjustment bolt is screwed downward with respect to a nut welded to the mounting piece. . Then, the column base portion of the steel column is inserted into the support frame, and the horizontal positioning and level adjustment are performed while temporarily supporting the weight of the steel column via the level adjustment bolts. After that, concrete is filled in the entire bonded steel pipe, and concrete is also filled in the steel column to the same level. At this time, if a central hole having a sufficient size is formed in the base plate, the top ends of the concrete inside and outside the steel column are naturally aligned, and the buoyancy of the concrete column can be prevented from acting on the steel column. It is said.

したがって、この工法に適用される鉄骨柱には、取付ピースやナット、レベル調整ボルトが設けられ、鉄骨柱を浮かせた状態で支持フレームに仮支持しつつ、水平方向の位置決めやレベル調整を行うようにしていた。また、鉄骨柱内部へのコンクリート充填を、ベースプレートに形成した中心孔から行うようにしていた。
特開2004−162374号公報(第5頁)
Therefore, the steel column applied to this method is provided with mounting pieces, nuts, and level adjustment bolts, so that the steel column is floated and temporarily supported on the support frame, while performing horizontal positioning and level adjustment. I was doing. In addition, concrete is filled into the steel column from the center hole formed in the base plate.
JP 2004-162374 A (page 5)

背景技術にあっては、予め鉄骨柱に、取付ピースやナット、レベル調整ボルトなどを取り付けておかなければならず、鉄骨柱を接合鋼管内に挿入してセッティングする際の手間が大変であるという課題があった。また、ベースプレートの中心孔から鉄骨柱内部にコンクリートを充填するようにしていて、流動性の良くないコンクリートの場合には、鉄骨柱内部に十分な量のコンクリートを充填することができないか、あるいは充填までに相当の時間を必要とし、杭部材と鉄骨柱の良好な接合品質の確保が難しかったり、多大な作業時間を要するという課題があった。   In the background art, mounting pieces, nuts, level adjustment bolts, etc. must be attached to the steel column in advance, and it is troublesome to insert and set the steel column in the bonded steel pipe. There was a problem. In addition, if the concrete is filled into the steel column from the center hole of the base plate and the fluidity is not good, a sufficient amount of concrete cannot be filled inside the steel column, or A considerable amount of time is required, and it is difficult to ensure good joint quality between the pile member and the steel column, and there is a problem that a lot of work time is required.

本発明は上記従来の課題に鑑みて創案されたものであって、基礎梁やフーチングを用いずに、杭部材の杭頭部に設けた中空鋼管内に鉄骨柱を挿入し、当該中空鋼管内にコンクリートを打設することにより杭部材に鉄骨柱を接合するようにした工法に適用される鉄骨柱の構造の簡単化、並びにこの鉄骨柱によって杭との良好な接合品質を確保することが可能な鉄骨造建物の杭との連結に用いる鉄骨柱、鉄骨造建物の鉄骨柱と杭の連結部構造、並びにその施工法を提供することを目的とする。   The present invention was devised in view of the above-described conventional problems, and without using a base beam or a footing, a steel column is inserted into a hollow steel pipe provided on a pile head of a pile member, and the hollow steel pipe It is possible to simplify the structure of the steel column applied to the construction method in which the steel column is joined to the pile member by placing concrete on the pile member, and to ensure good joint quality with the pile by this steel column An object of the present invention is to provide a steel column used for connection with a pile of a steel structure building, a connection structure between a steel column and a pile of a steel structure building, and a construction method thereof.

本発明にかかる鉄骨造建物の杭との連結に用いる鉄骨柱は、杭部材の杭頭部と接合されて地盤に設置されかつコンクリートが充填される中空鋼管の内方に下端部が挿入されて、基礎梁やフーチングを用いずに、該杭部材と連結される鉄骨造建物の杭との連結に用いる鉄骨柱であって、底面を有する中空ボックス状に形成され、該底面に柱芯出し用孔部が形成されるとともに、側部にコンクリート打設用穴部が形成されたことを特徴とする。   The steel column used for the connection with the pile of the steel structure building according to the present invention is joined to the pile head of the pile member and installed on the ground, and the lower end is inserted inward of the hollow steel pipe filled with concrete. A steel column used for connection with a pile of a steel building that is connected to the pile member without using a foundation beam or a footing, and is formed in a hollow box shape having a bottom surface, and for centering the column on the bottom surface A hole is formed, and a concrete placing hole is formed on the side.

本発明にかかる鉄骨造建物の鉄骨柱と杭の連結部構造は、杭部材の杭頭部と接合されて地盤に設置されかつコンクリートが充填される中空鋼管の内方に鉄骨柱の下端部を挿入して、基礎梁やフーチングを用いずに、これら鉄骨柱と杭部材とを連結するようにした鉄骨造建物の鉄骨柱と杭の連結部構造であって、底面を有する中空ボックス状に形成され、該底面に柱芯出し用孔部が形成されるとともに、側部にコンクリート打設用穴部が形成された鉄骨柱と、上記中空鋼管内に設けられ、上記柱芯出し用孔部に挿入されて上記鉄骨柱の柱芯を芯出しする芯出し材と、上記中空鋼管内に設けられ、上記鉄骨柱の上記底面を仮受けして該鉄骨柱の高さ位置を位置決めする仮受部と、上記コンクリート打設用穴部から上記鉄骨柱内部にコンクリートが打設されて形成された柱内コンクリート充填部とを備えたことを特徴とする。   The steel column-to-pile connection structure of the steel building according to the present invention is formed by connecting the bottom end of the steel column to the inside of the hollow steel pipe that is joined to the pile head of the pile member and installed in the ground and filled with concrete. The steel column and pile connection structure of a steel building that is inserted and used to connect these steel columns and pile members without using foundation beams or footings, and is formed into a hollow box shape with a bottom surface A columnar centering hole is formed on the bottom surface, and a steel column having a concrete placing hole formed on the side, and the hollow steel pipe is provided in the columnar centering hole. A centering material that is inserted to center the column core of the steel column, and a temporary receiving portion that is provided in the hollow steel pipe and temporarily receives the bottom surface of the steel column and positions the height position of the steel column And concrete from the hole for concrete placement into the steel column Characterized in that a set has been formed pillars in concrete-filled portion.

本発明にかかる鉄骨造建物の鉄骨柱と杭の連結部構造の施工法は、杭部材の杭頭部と接合されて地盤に設置されかつコンクリートが充填される中空鋼管の内方に鉄骨柱の下端部を挿入して、基礎梁やフーチングを用いずに、これら鉄骨柱と杭部材とを連結するようにした鉄骨造建物の鉄骨柱と杭の連結部の施工法であって、底面を有する中空ボックス状に形成され、該底面に柱芯出し用孔部が形成されるとともに、側部にコンクリート打設用穴部が形成された鉄骨柱を製作する第1工程と、上記中空鋼管内に、上記柱芯出し用孔部に挿入されて上記鉄骨柱の柱芯を芯出しする芯出し材を設けるとともに、該鉄骨柱の上記底面を仮受けして当該鉄骨柱の高さ位置を位置決めする仮受部を設ける第2工程と、上記中空鋼管に、上記鉄骨柱の建て方を案内する案内部材を設け、該案内部材に沿って該鉄骨柱を降下させて、上記柱芯出し用孔部に上記芯出し材を挿入しつつ、上記仮受部上に仮受けさせる第3工程と、上記中空鋼管に対し、上記鉄骨柱を仮固定部材で仮固定する第4工程と、上記中空鋼管内方および上記コンクリート打設用穴部から上記鉄骨柱内部にコンクリートを打設充填する第5工程とを含むことを特徴とする。   The construction method of the steel column and pile connection structure of the steel building according to the present invention is to connect the steel column to the inside of the hollow steel pipe which is joined to the pile head of the pile member and installed in the ground and filled with concrete. It is a construction method of a steel column and pile connection part of a steel building in which the lower end portion is inserted and these steel columns and pile members are connected without using foundation beams or footings, and has a bottom surface. A first step of producing a steel column having a hollow box shape, a column centering hole formed on the bottom surface, and a concrete placing hole formed on a side portion; and in the hollow steel pipe And a centering material that is inserted into the column centering hole to center the column core of the steel column, and provisionally receives the bottom surface of the steel column to position the height position of the steel column The second step of providing a provisional receiving part, and how to construct the steel column in the hollow steel pipe A third step of providing a guide member for guiding, lowering the steel column along the guide member, and temporarily receiving the centering material on the temporary receiving portion while inserting the centering material into the column centering hole; A fourth step of temporarily fixing the steel column to the hollow steel pipe with a temporary fixing member; and a step of casting and filling concrete into the steel column from the inside of the hollow steel pipe and the hole for placing the concrete. And 5 steps.

本発明にかかる鉄骨造建物の杭との連結に用いる鉄骨柱、鉄骨造建物の鉄骨柱と杭の連結部構造、並びにその施工法にあっては、基礎梁やフーチングを用いずに、杭部材の杭頭部に設けた中空鋼管内に鉄骨柱を挿入し、当該中空鋼管内にコンクリートを打設することにより杭部材に鉄骨柱を接合するようにした工法に適用される鉄骨柱の構造の簡単化、並びにこの鉄骨柱によって杭との良好な接合品質を確保することができる。   In the steel column used for the connection with the pile of the steel structure building according to the present invention, the connection structure of the steel column and the pile of the steel structure building, and the construction method thereof, the pile member is used without using the foundation beam or the footing. Steel column structure applied to the method of joining the steel column to the pile member by inserting the steel column into the hollow steel pipe provided in the pile head of the steel and placing concrete in the hollow steel pipe Simplification and good joint quality with the pile can be ensured by this steel column.

以下に、本発明にかかる鉄骨造建物の杭との連結に用いる鉄骨柱、鉄骨造建物の鉄骨柱と杭の連結部構造、並びにその施工法の好適な一実施形態を、添付図面を参照して詳細に説明する。   Hereinafter, a steel column used for connection with a pile of a steel structure building according to the present invention, a connection part structure of a steel column and pile of a steel structure building, and a preferred embodiment of its construction method will be described with reference to the accompanying drawings. Will be described in detail.

本実施形態にかかる鉄骨造建物の杭との連結に用いる鉄骨柱1は基本的には、図1に示すように、杭部材2の杭頭部と接合されて地盤Gに設置されかつコンクリートC1,C2が充填される中空鋼管3の内方に下端部が挿入されて、基礎梁やフーチングを用いずに、杭部材2と連結される鉄骨造建物の杭4との連結に用いる鉄骨柱1であって、底面1aを有する中空ボックス状に形成され、底面1aに柱芯出し用孔部5が形成されるとともに、側部1bにコンクリート打設用穴部6が形成されて構成される。   As shown in FIG. 1, the steel pillar 1 used for connection with the pile of the steel structure building concerning this embodiment is joined to the pile head of the pile member 2, and is installed in the ground G, and concrete C1. Steel column 1 used for connection with pile 4 of a steel building that is connected to pile member 2 without the use of a foundation beam or footing, with the lower end inserted inside hollow steel pipe 3 filled with C2 It is formed in a hollow box shape having a bottom surface 1a, and a column centering hole 5 is formed on the bottom surface 1a, and a concrete placing hole 6 is formed on the side portion 1b.

また、本実施形態にかかる鉄骨造建物の鉄骨柱1と杭4の連結部構造は基本的には、図1に示すように、杭部材2の杭頭部と接合されて地盤Gに設置されかつコンクリートC1,C2が充填される中空鋼管3の内方に鉄骨柱1の下端部を挿入して、基礎梁やフーチングを用いずに、これら鉄骨柱1と杭部材2とを連結するようにした鉄骨造建物の鉄骨柱1と杭4の連結部構造であって、上述した鉄骨柱1と、中空鋼管3内に設けられ、柱芯出し用孔部5に挿入されて鉄骨柱1の柱芯を芯出しする芯出し材7と、中空鋼管3内に設けられ、鉄骨柱1の底面1aを仮受けして鉄骨柱1の高さ位置を位置決めする仮受部8と、コンクリート打設用穴部6から鉄骨柱1内部にコンクリートが打設されて形成された柱内コンクリート充填部Cfとを備えて構成される。   Moreover, the connection part structure of the steel pillar 1 and the pile 4 of the steel structure building concerning this embodiment is joined to the pile head of the pile member 2, and is installed in the ground G, as shown in FIG. And the lower end part of the steel column 1 is inserted inside the hollow steel pipe 3 filled with the concrete C1 and C2, and the steel column 1 and the pile member 2 are connected without using a foundation beam or a footing. The steel column 1 and the pile 4 are connected to each other. The steel column 1 is provided in the hollow steel pipe 3 and is inserted into the column centering hole 5 and the column of the steel column 1 is provided. A centering material 7 for centering the core, a temporary receiving portion 8 provided in the hollow steel pipe 3 for temporarily receiving the bottom surface 1a of the steel column 1 and positioning the height position of the steel column 1, and for concrete placement And a concrete filling portion Cf in the column formed by placing concrete into the steel column 1 from the hole 6. Constructed.

図1には、本実施形態にかかる鉄骨造建物の鉄骨柱1と杭4の連結部構造の要部拡大側断面図が示されている。鉄骨柱1は、上下端が開口された中空ボックス状の柱本体1cと、柱本体1cの下端に、これを塞いで溶接接合されたベースプレート9とから主に構成される。ベースプレート9は鉄骨柱1の底面1aを形成する。ベースプレート9には、これを貫通して、ロッド状の芯出し材7が挿入される柱芯出し用孔部5が形成される。柱芯出し用孔部5の孔径は、芯出し材7の挿入操作が許容されれば足りる程度に、芯出し材7の外径よりも僅かに大きく形成される。また、鉄骨柱1の側部1bには、建物の1階床レベルよりも高い位置に、鉄骨柱1の中空内部にコンクリートを打設充填するためのコンクリート打設用穴部6が形成される。このような構成を備える鉄骨柱1は、工場または現場で製作され、杭4との連結部構造に適用される。   The principal part expanded side sectional view of the connection part structure of the steel column 1 and the pile 4 of the steel structure building concerning this embodiment is shown by FIG. The steel column 1 is mainly composed of a hollow box-shaped column main body 1c whose upper and lower ends are opened, and a base plate 9 which is closed and welded to the lower end of the column main body 1c. The base plate 9 forms the bottom surface 1a of the steel column 1. The base plate 9 is formed with a column centering hole 5 through which the rod-shaped centering material 7 is inserted. The hole diameter of the column centering hole 5 is formed to be slightly larger than the outer diameter of the centering material 7 to the extent that the insertion operation of the centering material 7 is allowed. Further, a concrete placement hole 6 for placing and filling concrete into the hollow interior of the steel column 1 is formed in the side portion 1b of the steel column 1 at a position higher than the first floor level of the building. . The steel column 1 having such a configuration is manufactured at a factory or in the field, and is applied to a connection portion structure with the pile 4.

次に、当該鉄骨柱1と杭4と連結部構造について説明する。地盤Gには、杭頭部に中空鋼管3を接合した中空筒体状の杭部材2が埋設され、これにより杭4が設置される。中空鋼管3は地盤Gに設置され、その上部が地盤Gから上方へ露出される。露出された中空鋼管3の上部周りには、盛土Fが施されるとともに、中空鋼管3の天端周りには、上面平坦に捨てコンSが施工され、また捨てコンSよりも外側には、土間下砕石Rが敷かれる。杭部材2内部には、杭頭部よりも下方位置まで、トレミー管などを用いてセメントミルクCmが充填される。固化したセメントミルクCm上には、中空鋼管3の中途部位置まで、一次コンクリートC1が打設充填される。   Next, the steel column 1, the pile 4, and the connecting portion structure will be described. In the ground G, a hollow cylindrical pile member 2 in which a hollow steel pipe 3 is joined to a pile head is embedded, whereby the pile 4 is installed. The hollow steel pipe 3 is installed on the ground G, and the upper part thereof is exposed upward from the ground G. Around the upper part of the exposed hollow steel pipe 3, embankment F is applied, and around the top end of the hollow steel pipe 3, a discarding con S is applied on the upper surface flat, and outside the discarding con S, A crushed stone R is laid. The pile member 2 is filled with cement milk Cm using a tremy tube or the like up to a position below the pile head. On the solidified cement milk Cm, the primary concrete C1 is cast and filled up to the midway position of the hollow steel pipe 3.

中空鋼管3内には、下端部を一次コンクリートC1中に埋設して、上端部を一次コンクリートC1表面から上方へ向かって延出させて、芯出し材7が設けられる。芯出し材7は、設置される鉄骨柱1の柱芯位置に合致させて配置される。芯出し材7は本実施形態にあってはネジ材で構成され、その上端は、鉄骨柱1の柱芯出し用孔部5への挿入を容易にするために、上方へ向かって先細りに形成される。芯出し材7には、鉄骨柱1のベースプレート9設置高さ位置を示すマーカーとして、柱芯出し用孔部5よりも大きな外径のダブルナット10が螺着される。ダブルナット10が芯出し材7に対して締め緩めされ、これによりベースプレート7位置、ひいては鉄骨柱1の設置高さ位置が設定される。   A centering material 7 is provided in the hollow steel pipe 3 by burying the lower end portion in the primary concrete C1 and extending the upper end portion upward from the surface of the primary concrete C1. The centering material 7 is arranged so as to match the column core position of the steel column 1 to be installed. In the present embodiment, the centering material 7 is formed of a screw material, and its upper end is tapered upward to facilitate insertion of the steel column 1 into the column centering hole 5. Is done. A double nut 10 having an outer diameter larger than that of the column centering hole 5 is screwed to the centering member 7 as a marker indicating the installation height position of the base plate 9 of the steel column 1. The double nut 10 is tightened and loosened with respect to the centering material 7, thereby setting the position of the base plate 7 and consequently the installation height position of the steel column 1.

中空鋼管3内には、一次コンクリートC1上に、芯出し材7周囲を取り囲んで、モルタルで饅頭形態に形成した仮受部8が設けられる。仮受部8は、ダブルナット10で位置決めされた高さ位置でベースプレート9を仮受けし、これにより、中空鋼管3内に挿入される鉄骨柱1の設置高さ位置が位置決めされる。中空鋼管3内には、鉄骨柱1の下端部が挿入される。鉄骨柱1は、柱芯出し用孔部5に芯出し材7が挿入され、かつ仮受部8上に仮受けされることにより、中空鋼管3内での柱芯の芯出し、並びに高さ位置調整がなされた状態で中空鋼管3内に配設される。   In the hollow steel pipe 3, a temporary receiving portion 8 is provided on the primary concrete C <b> 1 so as to surround the centering material 7 and to be formed in a wharf shape with mortar. The temporary receiving portion 8 temporarily receives the base plate 9 at the height position positioned by the double nut 10, and thereby the installation height position of the steel column 1 inserted into the hollow steel pipe 3 is positioned. The lower end portion of the steel column 1 is inserted into the hollow steel pipe 3. In the steel column 1, the centering material 7 is inserted into the column centering hole 5 and is temporarily received on the temporary receiving portion 8, whereby the centering of the column core in the hollow steel pipe 3 and the height thereof are performed. It arrange | positions in the hollow steel pipe 3 in the state by which position adjustment was made.

中空鋼管3内には、一次コンクリートC1上に天端まで、鉄骨柱1周りに二次コンクリートC2が打設充填され、これにより中空鋼管3を介して鉄骨柱1が杭部材2に一体的に連結される。他方、鉄骨柱1の中空内部には、コンクリート打設用穴部6を介して、ベースプレート9からおおよそ一階床レベル上までコンクリートが打設充填されて、柱内コンクリート充填部Cfが形成される。以上により、基礎梁やフーチングを用いずに、コンクリートC1,C2が充填される中空鋼管3を介して、杭4と鉄骨柱1を連結するようにした連結部構造が構成される。   In the hollow steel pipe 3, the secondary concrete C <b> 2 is cast and filled around the steel column 1 to the top of the primary concrete C <b> 1, whereby the steel column 1 is integrated with the pile member 2 through the hollow steel pipe 3. Connected. On the other hand, in the hollow interior of the steel column 1, concrete is cast and filled from the base plate 9 to the upper level of the first floor through the concrete placing hole 6 to form a concrete filling portion Cf in the column. . By the above, the connection part structure which connected the pile 4 and the steel column 1 via the hollow steel pipe 3 with which concrete C1, C2 is filled is comprised, without using a foundation beam or a footing.

次に、本実施形態にかかる鉄骨造建物の鉄骨柱1と杭4の連結部構造の施工法について説明する。本施工法は基本的には、杭部材2の杭頭部と接合されて地盤Gに設置されかつコンクリートC1,C2が充填される中空鋼管3の内方に鉄骨柱1の下端部を挿入して、基礎梁やフーチングを用いずに、これら鉄骨柱1と杭部材2とを連結するようにした鉄骨造建物の鉄骨柱1と杭4の連結部の施工法であって、底面1aを有する中空ボックス状に形成され、底面1aに柱芯出し用孔部5が形成されるとともに、側部1bにコンクリート打設用穴部6が形成された鉄骨柱1を製作する第1工程と、中空鋼管3内に、柱芯出し用孔部5に挿入されて鉄骨柱1の柱芯を芯出しする芯出し材7を設けるとともに、鉄骨柱1の底面1aを仮受けして当該鉄骨柱1の高さ位置を位置決めする仮受部8を設ける第2工程と、中空鋼管3に、鉄骨柱1の建て方を案内する案内部材11を設け、案内部材11に沿って鉄骨柱1を降下させて、柱芯出し用孔部5に芯出し材7を挿入しつつ、仮受部8上に仮受けさせる第3工程と、中空鋼管3に対し、鉄骨柱1を仮固定部材12で仮固定する第4工程と、中空鋼管3内方およびコンクリート打設用穴部6から鉄骨柱1内部にコンクリートC2,Cfを打設充填する第5工程とを含む。   Next, the construction method of the connection part structure of the steel column 1 and the pile 4 of the steel structure building concerning this embodiment is demonstrated. This construction method basically inserts the lower end portion of the steel column 1 into the inside of the hollow steel pipe 3 which is joined to the pile head of the pile member 2 and installed on the ground G and filled with concrete C1 and C2. The construction method of the connecting portion between the steel column 1 and the pile 4 of the steel building in which the steel column 1 and the pile member 2 are connected without using the foundation beam or the footing, and has a bottom surface 1a. A first step of manufacturing a steel column 1 which is formed in a hollow box shape, has a column centering hole 5 formed in the bottom surface 1a, and a concrete placement hole 6 formed in the side portion 1b; A centering material 7 is provided in the steel pipe 3 to be inserted into the column centering hole 5 to center the column core of the steel column 1, and the bottom surface 1 a of the steel column 1 is provisionally received to receive the steel column 1. The second step of providing the provisional receiving portion 8 for positioning the height position, and how to construct the steel column 1 in the hollow steel pipe 3 A guide member 11 for guiding is provided, and the steel column 1 is lowered along the guide member 11 so that the centering material 7 is inserted into the column centering hole 5 and temporarily received on the temporary receiving portion 8. Steps, a fourth step of temporarily fixing the steel column 1 to the hollow steel pipe 3 with the temporary fixing member 12, and concrete C2 and Cf from the inside of the hollow steel tube 3 and the concrete placing hole 6 to the inside of the steel column 1 And a fifth step of casting and filling.

図2および図3中の(a)〜(i)にわたって、本実施形態にかかる施工法の工程が、順次示されている。図4は、図2中A部拡大図、図5は、図3中(g)の平面図である。まず、図2(a)に示すように、地盤Gに掘削した杭孔13に、杭頭部に中空鋼管3を接合した杭部材2を挿入設置し、杭部材2内部に、天端よりも低い位置までセメントミルクCmを充填し、固化させる。この際、中空鋼管3の天端周辺が地盤G上に露出するように盛土Fを施す。他方、上述した鉄骨柱1を工場または現場にて製作しておく。中空ボックス状の柱本体1cの側部1bに、コンクリート打設用穴部6を穿設する。そして、柱芯出し用孔部5を形成したベースプレート9を、当該柱芯出し用孔部5が柱芯に合致するようにして、柱本体1cの下端に溶接接合する。   The steps of the construction method according to the present embodiment are sequentially shown over (a) to (i) in FIGS. 4 is an enlarged view of a portion A in FIG. 2, and FIG. 5 is a plan view of (g) in FIG. First, as shown to Fig.2 (a), the pile member 2 which joined the hollow steel pipe 3 to the pile head is inserted and installed in the pile hole 13 excavated in the ground G, and the pile member 2 inside, rather than a top end. Fill cement milk Cm to a low position and solidify. At this time, embankment F is applied so that the periphery of the top end of the hollow steel pipe 3 is exposed on the ground G. On the other hand, the steel column 1 mentioned above is manufactured in a factory or the field. A concrete placing hole 6 is formed in the side 1b of the hollow box-shaped column main body 1c. Then, the base plate 9 in which the column centering hole 5 is formed is welded and joined to the lower end of the column body 1c so that the column centering hole 5 matches the column core.

次いで、図2(b)に示すように、杭部材2内部から中空鋼管3内の中途部まで、セメントミルクCm上に一次コンクリートC1を充填する。またこの際、中空鋼管3の天端周囲を取り囲んで、盛土F上に、上面が平坦な捨てコンSを施工する。捨てコンSの施工に際しては図示しないけれども、捨てコンSよりも外側に土間下砕石Rを敷設する。図4に示すように、捨てコンSの上面Saは、雨水や異物が中空鋼管3内に入り込むことを防止するために、中空鋼管3の天端3aより低く形成する。捨てコンSにより、中空鋼管3の天端3aが保護される。また、捨てコンSの平坦な上面Saは、柱芯の墨出しに利用される。   Next, as shown in FIG. 2B, the primary concrete C <b> 1 is filled on the cement milk Cm from the inside of the pile member 2 to the middle part in the hollow steel pipe 3. At this time, a disposal container S having a flat upper surface is constructed on the embankment F so as to surround the top end of the hollow steel pipe 3. Although not shown in the drawings, the ground crush R is laid outside the discarding con S. As shown in FIG. 4, the upper surface Sa of the throwing container S is formed lower than the top end 3 a of the hollow steel pipe 3 in order to prevent rainwater and foreign matter from entering the hollow steel pipe 3. The top end 3a of the hollow steel pipe 3 is protected by the throwing away condenser S. Further, the flat upper surface Sa of the throwing container S is used for inking the pillar core.

次いで、図2(c)に示すように、例えば下げ振りなどで鉄骨柱1の柱芯位置に合致させて、一次コンクリートC1に、芯出し材7を立設する。芯出し材7には予め、ダブルナット10を螺合させておく。芯出し材7の固定が完了したならば、ダブルナット10を、鉄骨柱1の設置高さ位置で芯出し材7に締め付けてセットする。ダブルナット10は、その後のモルタルによる仮受部8の形成にあたって、当該仮受部8の天端レベルを示す目印にもなる。次いで、図2(d)に示すように、ダブルナット10の上端に合わせて、芯出し材7周囲にモルタルで仮受部8を形成する。   Next, as shown in FIG. 2C, the centering material 7 is erected on the primary concrete C1 so as to match the column core position of the steel column 1 by, for example, swinging down. A double nut 10 is screwed into the centering material 7 in advance. When the fixing of the centering material 7 is completed, the double nut 10 is tightened and set to the centering material 7 at the installation height position of the steel column 1. The double nut 10 also serves as a mark indicating the top end level of the temporary receiving portion 8 when the temporary receiving portion 8 is formed by the mortar thereafter. Next, as shown in FIG. 2 (d), a temporary receiving portion 8 is formed with mortar around the centering material 7 in accordance with the upper end of the double nut 10.

次いで、図2(e)に示すように、中空鋼管3の天端に、捨てコンSに施した墨出しを利用して、鉄骨柱1の建て方を案内する案内部材11を溶接接合する。これにより、鉄骨柱1は、中空鋼管3の天端レベルで設置位置が位置決めされる。案内部材11は図5に示すように、2つのアングル11a,11bを互いに直角に接合することで、直角定規様に形成される。案内部材11は、一方のアングル11aが中空鋼管3を跨ぎ、他方のアングル11bが中空鋼管3に掛止されて、それらの端部が捨てコンS上に張り出す大きさに形成される。   Next, as shown in FIG. 2 (e), a guide member 11 that guides the construction method of the steel column 1 is welded and joined to the top end of the hollow steel pipe 3 by using the ink marking applied to the throwing-off container S. Thereby, the installation position of the steel column 1 is positioned at the top end level of the hollow steel pipe 3. As shown in FIG. 5, the guide member 11 is formed in a right-angle ruler by joining two angles 11a and 11b at right angles. The guide member 11 is formed in such a size that one angle 11 a straddles the hollow steel pipe 3 and the other angle 11 b is hooked on the hollow steel pipe 3, and the end portions of the guide member 11 are overhanging on the socket S.

次いで、図3(f)に示すように、案内部材11の直角な角部11cを案内にして、案内部材11に沿って鉄骨柱1を降下させ、柱芯出し用孔部5に芯出し材7を挿入しつつ、仮受部8上に仮受けさせる。この段階で、鉄骨柱1は、ベースプレート9レベルおよび中空鋼管3天端レベルでの芯出しが完了するとともに、設置高さ位置のセットが完了する。   Next, as shown in FIG. 3 (f), the steel column 1 is lowered along the guide member 11 with the right-angled corner 11 c of the guide member 11 as a guide, and the centering material is placed in the column centering hole 5. 7 is temporarily received on the temporary receiving portion 8 while being inserted. At this stage, centering of the steel column 1 at the base plate 9 level and the hollow steel pipe 3 top end level is completed, and the setting of the installation height position is completed.

次いで、図3(g)および図5に示すように、案内部材11のアングル11a,11bに反力をとって、中空鋼管3と鉄骨柱1との間に木製キャンバなどの仮固定部材12を取り外し可能に打ち込み、これによって鉄骨柱1の下端部を中空鋼管3に対して仮固定する。このように鉄骨柱1を位置固定すれば、当該鉄骨柱1への鉄骨梁の建て方などを進めることができる。   Next, as shown in FIGS. 3 (g) and 5, a reaction force is applied to the angles 11 a and 11 b of the guide member 11, and a temporary fixing member 12 such as a wooden camber is placed between the hollow steel pipe 3 and the steel column 1. It is detachably driven, thereby temporarily fixing the lower end of the steel column 1 to the hollow steel pipe 3. By fixing the position of the steel column 1 in this way, it is possible to proceed with the construction of the steel beam on the steel column 1 or the like.

次いで、図3(h)に示すように、中空鋼管3内方へ鉄骨柱1周りにコンクリートC2を充填するとともに、鉄骨柱1のコンクリート打設用穴部6から鉄骨柱1の中空内部へコンクリートCfを打設充填する。この際、案内部材11および仮固定部材12は、取り付けたままとしても、あるいは取り去っても良い。   Next, as shown in FIG. 3 (h), the concrete C 2 is filled around the steel column 1 inward of the hollow steel pipe 3, and the concrete is introduced from the concrete placement hole 6 of the steel column 1 into the hollow inside of the steel column 1. Cf is cast and filled. At this time, the guide member 11 and the temporary fixing member 12 may be left attached or removed.

最後に、図3(i)に示すように、コンクリート打設用穴部6を、これに閉塞板14を溶接接合して閉塞する。以上の施工法により、基礎梁やフーチングを用いずに、コンクリートC1,C2が充填される中空鋼管3を介して、杭部材2と鉄骨柱1を連結するようにした連結部構造を施工することができる。   Finally, as shown in FIG. 3 (i), the concrete placing hole 6 is closed by welding the closing plate 14 thereto. By the above construction method, without using the foundation beam or footing, construct the connecting part structure that connects the pile member 2 and the steel column 1 through the hollow steel pipe 3 filled with the concrete C1, C2. Can do.

以上説明した本実施形態にかかる鉄骨造建物の杭4との連結に用いる鉄骨柱1によれば、中空鋼管3内に挿入されて柱芯位置や設置高さ位置がセッティングされる鉄骨柱1には、柱芯出し用孔部5と、当該孔部5が芯出し材7や仮受部8で塞がれることとの関係で、鉄骨柱1内部へのコンクリートCf充填を確保するコンクリート打設用穴部6を形成するだけで良く、基礎梁やフーチングを用いずに杭4と連結される鉄骨柱1の構造をきわめて簡単化することができ、取扱い数の多い鉄骨柱1を効率よく製作することができる。また、コンクリート打設用穴部6を形成したので、当該穴部6から鉄骨柱1の中空内部へ確実に適量のコンクリートCfを充填することができ、中空鋼管3内に建て込んだ鉄骨柱1の品質を適切に確保することができる。   According to the steel column 1 used for the connection with the pile 4 of the steel building according to the present embodiment described above, the steel column 1 is inserted into the hollow steel pipe 3 and the column core position and the installation height position are set. The concrete placement for securing the concrete Cf filling in the steel column 1 due to the relationship between the column centering hole 5 and the hole 5 being blocked by the centering material 7 or the temporary support 8. The structure of the steel column 1 that is connected to the pile 4 without using the foundation beam or footing can be greatly simplified and the steel column 1 having a large number of handling can be manufactured efficiently. can do. In addition, since the concrete casting hole 6 is formed, an appropriate amount of concrete Cf can be reliably filled into the hollow interior of the steel column 1 from the hole 6, and the steel column 1 built in the hollow steel pipe 3. The quality of the can be ensured appropriately.

また、本実施形態にかかる鉄骨造建物の鉄骨柱1と杭4の連結部構造の施工法によれば、芯出し材7と案内部材11により、ベースプレート9レベルおよび中空鋼管3天端レベルの上下2か所で鉄骨柱1の芯出しを行うことができ、柱芯の位置精度を向上することができる。また、仮受部8で、鉄骨柱1の底面1aであるベースプレート9を仮受けして、鉄骨柱1の設置高さ位置を設定することができ、背景技術のように鉄骨柱を浮かせた状態でレベル調整するよりも、容易かつ安全に鉄骨柱1の高さ位置をセッティングすることができる。また、鉄骨柱1を降下させる作業だけで、これら芯出し材7と仮受部8により、芯出し作業と高さ位置調整作業を行うことができる。また、芯出し材7と仮受部8をともに中空鋼管3内に設けたので、柱芯出し用孔部5への芯出し材7の挿入操作で仮受部8に鉄骨柱1を仮受けさせることができ、鉄骨柱1の芯出し作業と設置高さ位置調整とを一挙に完了することができる。   Moreover, according to the construction method of the connection part structure of the steel pillar 1 and the pile 4 of the steel structure building concerning this embodiment, the base plate 9 level and the top and bottom levels of the hollow steel pipe 3 top end level by the centering material 7 and the guide member 11. The steel column 1 can be centered at two locations, and the position accuracy of the column core can be improved. In addition, the provisional receiving portion 8 can provisionally receive the base plate 9 which is the bottom surface 1a of the steel column 1 to set the installation height position of the steel column 1, and the steel column is floated as in the background art It is possible to set the height position of the steel column 1 easily and safely, rather than adjusting the level. Further, the centering work and the height position adjusting work can be performed by the centering material 7 and the provisional receiving portion 8 only by the work of lowering the steel column 1. Further, since both the centering material 7 and the provisional receiving portion 8 are provided in the hollow steel pipe 3, the steel column 1 is provisionally received by the provisional receiving portion 8 by the operation of inserting the centering material 7 into the column centering hole 5. The centering work of the steel column 1 and the installation height position adjustment can be completed at once.

仮固定部材12で鉄骨柱1を中空鋼管3に仮固定するようにしたので、中空鋼管3内へのコンクリートC2の充填を待つことなく、鉄骨梁等の建て方を並行して進めることができ、工期を短縮化できる。また、コンクリート打設用穴部6から鉄骨柱1内部へコンクリートCfを打設充填するようにしたので、鉄骨柱1内部へのコンクリートCfの充填を早期にかつ適切に完了することができる。このように鉄骨柱1内部へのコンクリート充填を確保しつつ、二次コンクリートC2により鉄骨柱1の下端部を中空鋼管3に適切に接合することができ、ひいては杭4との接合品質を適切に確保することができる。   Since the steel column 1 is temporarily fixed to the hollow steel pipe 3 by the temporary fixing member 12, the construction of the steel beam can be advanced in parallel without waiting for the filling of the concrete C2 into the hollow steel pipe 3. The construction period can be shortened. Further, since the concrete Cf is cast and filled into the steel column 1 from the concrete casting hole 6, the filling of the concrete Cf into the steel column 1 can be completed quickly and appropriately. Thus, while ensuring the concrete filling inside the steel column 1, the lower end portion of the steel column 1 can be appropriately joined to the hollow steel pipe 3 by the secondary concrete C <b> 2, and thus the joining quality with the pile 4 can be appropriately set. Can be secured.

さらに、本実施形態にかかる鉄骨造建物の鉄骨柱1と杭4の連結部構造によれば、芯出し部材7と柱芯出し用孔部5とにより、柱芯位置の精度を容易にかつ高く確保することができる。また、仮受部8により、鉄骨柱1の設置高さ位置精度を高く確保することができる。また、コンクリート打設用穴部6から鉄骨柱1内部にコンクリートを打設充填してコンクリート充填部Cfを形成するようにしたので、適切なコンクリート充填部Cfを得ることができて、鉄骨柱1の構造健全性を高めることができる。また、鉄骨柱1と杭4の連結部構造として、従来と遜色のない構造強度を保持することができる。   Furthermore, according to the structure of the connecting portion between the steel column 1 and the pile 4 of the steel building according to the present embodiment, the centering member 7 and the column centering hole 5 make the accuracy of the column core position easy and high. Can be secured. Further, the provisional receiving portion 8 can ensure high installation height position accuracy of the steel column 1. In addition, since concrete is cast and filled into the steel column 1 from the concrete casting hole 6 to form the concrete filling portion Cf, an appropriate concrete filling portion Cf can be obtained, and the steel column 1 Can improve the structural soundness. Moreover, as a connection part structure of the steel column 1 and the pile 4, the structural strength comparable to the conventional structure can be maintained.

芯出し材7の周囲に、鉄骨柱1を仮受けする仮受部8を設けるようにしたので、芯出し材7を基準にして仮受部8を設けることができるとともに、芯出し作業と高さ位置調整作業の一括性を構造的に確保することができる。芯出し材7に、仮受部8の高さ位置を示すダブルナット10を設けたので、仮受部8を適切に形成できるとともに、鉄骨柱1の高さ位置も確実に設定することができる。   Since the provisional receiving portion 8 for provisionally receiving the steel column 1 is provided around the centering material 7, the provisional receiving portion 8 can be provided with reference to the centering material 7, and the centering operation and high The collectiveness of the position adjustment work can be structurally ensured. Since the centering material 7 is provided with the double nut 10 indicating the height position of the provisional receiving portion 8, the provisional receiving portion 8 can be appropriately formed and the height position of the steel column 1 can be set reliably. .

本発明にかかる鉄骨造建物の鉄骨柱と杭の連結部構造の好適な一実施形態を示す要部拡大側断面図である。It is a principal part expanded side sectional view which shows suitable one Embodiment of the connection part structure of the steel column and pile of the steel structure building concerning this invention. 本発明にかかる鉄骨造建物の鉄骨柱と杭の連結部構造の施工法の好適な一実施形態を、工程(a)〜(e)にわたって示す説明図である。BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing which shows suitable one Embodiment of the construction method of the connection part structure of the steel column and pile of the steel-frame building concerning this invention over process (a)-(e). 本発明にかかる鉄骨造建物の鉄骨柱と杭の連結部構造の施工法の好適な一実施形態を、工程(f)〜(i)にわたって示す説明図である。It is explanatory drawing which shows suitable one Embodiment of the construction method of the connection part structure of the steel column and pile of the steel-frame building concerning this invention over process (f)-(i). 図2中、A部拡大図である。It is the A section enlarged view in FIG. 図3中、(g)の平面図である。FIG. 4 is a plan view of (g) in FIG. 3.

符号の説明Explanation of symbols

1 鉄骨柱
1a 鉄骨柱の底面
1b 鉄骨柱の側部
2 杭部材
3 中空鋼管
4 杭
5 柱芯出し用孔部
6 コンクリート打設用穴部
7 芯出し材
8 仮受部
11 案内部材
12 仮固定部材
C1 一次コンクリート
C2 二次コンクリート
Cf 柱内コンクリート充填部
G 地盤
DESCRIPTION OF SYMBOLS 1 Steel column 1a Steel column bottom 1b Steel column side 2 Pile member 3 Hollow steel pipe 4 Pile 5 Column centering hole 6 Concrete placement hole 7 Centering material 8 Temporary receiving part 11 Guide member 12 Temporary fixing Member C1 Primary concrete C2 Secondary concrete Cf Concrete filling part in column G Ground

Claims (3)

杭部材の杭頭部と接合されて地盤に設置されかつコンクリートが充填される中空鋼管の内方に下端部が挿入されて、基礎梁やフーチングを用いずに、該杭部材と連結される鉄骨造建物の杭との連結に用いる鉄骨柱であって、
底面を有する中空ボックス状に形成され、該底面に柱芯出し用孔部が形成されるとともに、側部にコンクリート打設用穴部が形成されたことを特徴とする鉄骨造建物の杭との連結に用いる鉄骨柱。
A steel frame that is joined to the pile head of the pile member and is installed on the ground and is inserted into the inside of a hollow steel pipe filled with concrete, and is connected to the pile member without using a foundation beam or footing A steel column used for connection with a pile of a building,
A steel building pile characterized in that it is formed in a hollow box shape having a bottom surface, a column centering hole is formed on the bottom surface, and a concrete placing hole is formed on a side portion. Steel column used for connection.
杭部材の杭頭部と接合されて地盤に設置されかつコンクリートが充填される中空鋼管の内方に鉄骨柱の下端部を挿入して、基礎梁やフーチングを用いずに、これら鉄骨柱と杭部材とを連結するようにした鉄骨造建物の鉄骨柱と杭の連結部構造であって、
底面を有する中空ボックス状に形成され、該底面に柱芯出し用孔部が形成されるとともに、側部にコンクリート打設用穴部が形成された鉄骨柱と、
上記中空鋼管内に設けられ、上記柱芯出し用孔部に挿入されて上記鉄骨柱の柱芯を芯出しする芯出し材と、
上記中空鋼管内に設けられ、上記鉄骨柱の上記底面を仮受けして該鉄骨柱の高さ位置を位置決めする仮受部と、
上記コンクリート打設用穴部から上記鉄骨柱内部にコンクリートが打設されて形成された柱内コンクリート充填部とを備えたことを特徴とする鉄骨造建物の鉄骨柱と杭の連結部構造。
Insert the lower end of the steel column into the inside of the hollow steel pipe that is joined to the pile head of the pile member and installed in the ground and filled with concrete, and without using the foundation beam or footing, these steel column and pile It is the structure of the connecting part of the steel column and pile of the steel structure building that connects the members,
Formed in a hollow box shape having a bottom surface, a steel column with a hole for core placement formed on the bottom surface and a hole for concrete placement on the side portion;
A centering material provided in the hollow steel pipe and inserted into the column centering hole to center the column core of the steel column; and
A temporary receiving portion provided in the hollow steel pipe, temporarily receiving the bottom surface of the steel column and positioning the height position of the steel column;
A structure for connecting a steel column and a pile of a steel building, comprising: a concrete filling portion in a column formed by casting concrete into the steel column from the hole for placing concrete.
杭部材の杭頭部と接合されて地盤に設置されかつコンクリートが充填される中空鋼管の内方に鉄骨柱の下端部を挿入して、基礎梁やフーチングを用いずに、これら鉄骨柱と杭部材とを連結するようにした鉄骨造建物の鉄骨柱と杭の連結部の施工法であって、
底面を有する中空ボックス状に形成され、該底面に柱芯出し用孔部が形成されるとともに、側部にコンクリート打設用穴部が形成された鉄骨柱を製作する第1工程と、
上記中空鋼管内に、上記柱芯出し用孔部に挿入されて上記鉄骨柱の柱芯を芯出しする芯出し材を設けるとともに、該鉄骨柱の上記底面を仮受けして当該鉄骨柱の高さ位置を位置決めする仮受部を設ける第2工程と、
上記中空鋼管に、上記鉄骨柱の建て方を案内する案内部材を設け、該案内部材に沿って該鉄骨柱を降下させて、上記柱芯出し用孔部に上記芯出し材を挿入しつつ、上記仮受部上に仮受けさせる第3工程と、
上記中空鋼管に対し、上記鉄骨柱を仮固定部材で仮固定する第4工程と、
上記中空鋼管内方および上記コンクリート打設用穴部から上記鉄骨柱内部にコンクリートを打設充填する第5工程とを含むことを特徴とする鉄骨造建物の鉄骨柱と杭の連結部構造の施工法。
Insert the lower end of the steel column into the inside of the hollow steel pipe that is joined to the pile head of the pile member and installed in the ground and filled with concrete, and without using the foundation beam or footing, these steel column and pile It is a construction method of the connecting part of the steel column and the pile of the steel structure building that connects the members,
A first step of producing a steel column formed in a hollow box shape having a bottom surface, a column centering hole is formed on the bottom surface, and a concrete placing hole is formed on a side portion;
Provided in the hollow steel pipe is a centering material that is inserted into the column centering hole to center the column core of the steel column, and provisionally receives the bottom surface of the steel column so as to increase the height of the steel column. A second step of providing a temporary receiving portion for positioning the position;
The hollow steel pipe is provided with a guide member for guiding the construction of the steel column, the steel column is lowered along the guide member, and the centering material is inserted into the column centering hole, A third step of provisionally accepting the provisional portion;
A fourth step of temporarily fixing the steel column with a temporary fixing member to the hollow steel pipe;
And a fifth step of casting and filling concrete into the steel column from the inside of the hollow steel pipe and the concrete casting hole, and the construction of the steel column and pile connecting portion structure of the steel building Law.
JP2007298239A 2007-11-16 2007-11-16 Construction method of steel column and pile connection structure of steel building Expired - Fee Related JP5209278B2 (en)

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JP2017110441A (en) * 2015-12-17 2017-06-22 新日鐵住金株式会社 Joining structure of steel pipe and joining method of steel pipe

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JP2016180271A (en) * 2015-03-25 2016-10-13 東建コーポレーション株式会社 Building support structure, construction method of the same and pile cover
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