JP6357324B2 - Construction adjustment method and building - Google Patents

Construction adjustment method and building Download PDF

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JP6357324B2
JP6357324B2 JP2014037624A JP2014037624A JP6357324B2 JP 6357324 B2 JP6357324 B2 JP 6357324B2 JP 2014037624 A JP2014037624 A JP 2014037624A JP 2014037624 A JP2014037624 A JP 2014037624A JP 6357324 B2 JP6357324 B2 JP 6357324B2
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steel
steel pipe
pile
concrete
steel column
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JP2015161125A (en
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文男 門田
文男 門田
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Taisei Corp
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Description

本発明は、鋼管コンクリート杭に打ち込む鉄骨柱の建入れを調整する方法、ならびに、これら鋼管コンクリート杭および鉄骨柱を備える建物に関する。   The present invention relates to a method for adjusting the erection of a steel column driven into a steel pipe concrete pile, and a building including these steel pipe concrete pile and steel column.

従来より、鋼管コンクリート杭の杭頭部に、鉄骨柱の下端を接合する構造がある。
このような構造は、以下の手順で構築される（特許文献１参照）。
まず、地盤に鋼管を打ち込んで、この鋼管の内部に杭頭部の近傍の高さまでコンクリートを打設する。次に、鋼管内部のコンクリート表面に、モルタルで仮受部を構築して、この仮受部の上に鉄骨柱の下端を載せる。そして、この状態で、鋼管内の杭頭部のコンクリートを打設する。これにより、鉄骨柱が鋼管コンクリート杭に接合される。 Conventionally, there exists a structure which joins the lower end of a steel column to the pile head of a steel pipe concrete pile.
Such a structure is constructed by the following procedure (see Patent Document 1).
First, a steel pipe is driven into the ground, and concrete is placed inside the steel pipe to a height near the pile head. Next, a temporary receiving part is constructed with mortar on the concrete surface inside the steel pipe, and the lower end of the steel column is placed on the temporary receiving part. And the concrete of the pile head in a steel pipe is laid in this state. Thereby, a steel column is joined to a steel pipe concrete pile.

ここで、鉄骨柱の下端を仮受部の上に載せる際、鋼管の上端の周囲に捨てコンクリートを打設し、この捨てコンクリート上に墨出しをする。そして、この墨出しを利用して鋼管の上端にアングル材を位置決めして溶接し、このアングル材をガイドとして、鉄骨柱を降下させる。このようにして、鉄骨柱の建入れを調整する。   Here, when the lower end of the steel column is placed on the provisional receiving portion, the discarded concrete is placed around the upper end of the steel pipe, and the ink is drawn on the discarded concrete. Then, an angle material is positioned and welded to the upper end of the steel pipe using this ink marking, and the steel column is lowered using this angle material as a guide. In this way, the erection of the steel column is adjusted.

特許第５２０９２７８号公報Japanese Patent No. 5209278

しかしながら、以上のような方法では、アングル材をガイドとして鉄骨柱を降下させてセットするため、鉄骨柱の建入れを微調整することはできない、という問題があった。
また、鋼管の周囲に捨てコンクリートを打設したり、アングル材を溶接固定したりする作業に手間がかかり、工期が長期化する、という問題があった。 However, the above method has a problem that the steel column cannot be finely adjusted because the steel column is lowered and set using the angle member as a guide.
In addition, there is a problem in that it takes time and labor to cast abandoned concrete around the steel pipe and to fix the angle material by welding.

本発明は、鉄骨柱の建入れを容易に微調整でき、かつ、工期を短縮できる建入れ調整方法および建物を提供することを目的とする。   An object of the present invention is to provide an erection adjustment method and a building capable of easily finely adjusting the erection of a steel column and shortening the construction period.

請求項１に記載の建入れ調整方法は、鋼管コンクリート杭（例えば、後述の鋼管コンクリート杭２０）に打ち込む鉄骨柱（例えば、後述の鉄骨柱３０）の建入れを調整する方法であって、前記鉄骨柱には、当該鉄骨柱から側方に延出する複数の延出部（例えば、後述の継手部３２）が設けられており、地盤に杭穴を形成して当該杭穴に前記鋼管コンクリート杭の鋼管（例えば、後述の鋼管２２）を地盤（例えば、後述の地盤２）内に設けるとともに、当該鋼管内に所定高さまでセメントミルク（例えば、後述のセメントミルク２１）を打設し、前記鋼管上端の開口を蓋で塞いで養生する工程（例えば、後述のステップＳ１〜Ｓ４）と、前記杭穴を埋め戻す工程と、前記地盤を掘削して前記前記鋼管コンクリート杭の杭頭部の蓋を露出させる工程と、前記蓋を取り外して、前記鋼管の杭頭部の内部に所定高さまでコンクリートを打設して第１の補強コンクリート体を構築する工程と、当該第１の補強コンクリート体の上に鉄骨受け治具をセットするとともに、前記鋼管の上端側の複数箇所に高さ調整機構（例えば、後述の調整治具６０、７０）を設ける工程（例えば、後述のステップＳ５）と、当該鋼管内の前記鉄骨受け治具の上に前記鉄骨柱の下端を載せるとともに、当該鉄骨柱の延出部を前記複数の高さ調整機構に載せる工程（例えば、後述のステップＳ６）と、当該複数の高さ調整機構を調整することで、前記鉄骨柱の建入れを調整する工程（例えば、後述のステップＳ７）と、前記第１の補強コンクリート体の上でかつ前記鉄骨柱の周囲にコンクリートを打設して、第２の補強コンクリート体を構築する工程と、を備える。 The erection adjustment method according to claim 1 is a method of adjusting the erection of a steel column (for example, a steel column 30 described later) driven into a steel pipe concrete pile (for example, a steel tube concrete pile 20 described later), The steel column is provided with a plurality of extending portions (for example, joint portions 32 to be described later) extending laterally from the steel column, and a pile hole is formed in the ground, and the steel pipe concrete is formed in the pile hole. A pile steel pipe (for example, a later-described steel pipe 22) is provided in the ground (for example, a later-described ground 2), and cement milk (for example, a later-described cement milk 21) is placed in the steel pipe up to a predetermined height. A step of covering the opening at the upper end of the steel pipe with a lid (for example, steps S1 to S4 described later), a step of refilling the pile hole, and a lid of the pile head of the steel pipe concrete pile by excavating the ground To expose Removing the lid and placing concrete up to a predetermined height inside the pile head of the steel pipe to construct a first reinforced concrete body, and receiving a steel frame on the first reinforced concrete body. as well as set the jig, the height adjustment mechanism at a plurality of locations on the upper end side of the steel pipe (e.g., adjusting jig 60 and 70 to be described later) and the step of providing the (e.g., step S5 will be described later), the in the steel tube A step of placing the lower end of the steel column on the steel receiving jig and placing an extension part of the steel column on the plurality of height adjustment mechanisms (for example, step S6 described later), and the plurality of height adjustments By adjusting the mechanism, the step of adjusting the erection of the steel column (for example, step S7 described later), and placing concrete on the first reinforced concrete body and around the steel column Second complement And a step of constructing a concrete body.

この発明によれば、鋼管の上端側の複数箇所に高さ調整機構を設け、この高さ調整機構で鉄骨柱の延出部の高さを調整することで、鉄骨柱の建入れを調整した。したがって、鉄骨柱の建入れを容易に微調整できるうえに、従来のように鋼管の周囲にコンクリートを打設する必要はないので、工期を短縮できる。   According to the present invention, the height adjustment mechanism is provided at a plurality of positions on the upper end side of the steel pipe, and the height of the steel column is adjusted by adjusting the height of the extension portion of the steel column by the height adjustment mechanism. . Therefore, the construction of the steel column can be easily finely adjusted, and since it is not necessary to place concrete around the steel pipe as in the conventional case, the construction period can be shortened.

請求項２に記載の建入れ調整方法は、前記高さ調整機構（例えば、後述の調整治具６０）は、前記鋼管の外周側面に溶接されたナット（例えば、後述の長ナット６１）と、当該ナットに螺合されるボルト（例えば、後述のボルト６２）と、を含んで構成されることを特徴とする。   The erection adjustment method according to claim 2, wherein the height adjustment mechanism (for example, an adjustment jig 60 described later) includes a nut (for example, a long nut 61 described later) welded to an outer peripheral side surface of the steel pipe, And a bolt (for example, a bolt 62 described later) to be screwed onto the nut.

この発明によれば、ナットとボルトとを含んで高さ調整機構を構成したので、簡易な構成であり、高さ調整機構を低コストで製作できる。   According to the present invention, since the height adjustment mechanism is configured including the nut and the bolt, the configuration is simple and the height adjustment mechanism can be manufactured at low cost.

請求項２に記載の建入れ調整方法は、前記高さ調整機構（例えば、後述の調整治具７０）は、打設面に仮固定される下部プレート（例えば、後述の下部プレート７１）と、当該下部プレートに設けられて鉛直方向に伸縮可能な伸縮部材（例えば、後述の伸縮部材７２）と、当該伸縮部材の上端に設けられて前記延出部を支持する上部プレート（例えば、後述の上部プレート７３）と、を含んで構成されることを特徴とする。
また、請求項２に記載の建入れ調整方法は、前記第１の補強コンクリート体の上に鉄骨受け治具をセットする際には、当該第１の補強コンクリート体の上面にレベリング材を打設し、当該硬化したレベリング材の上に前記鉄骨受け治具をセットすることを特徴とする。 The erection adjustment method according to claim 2 , wherein the height adjustment mechanism (for example, an adjustment jig 70 described later) includes a lower plate (for example, a lower plate 71 described later) temporarily fixed to the placement surface, An elastic member (for example, an elastic member 72 described later) that is provided on the lower plate and expands and contracts in the vertical direction, and an upper plate (for example, an upper part that is described later) provided on the upper end of the elastic member and supporting the extension portion Plate 73).
Further, in the construction adjustment method according to claim 2, when a steel frame receiving jig is set on the first reinforced concrete body, a leveling material is placed on the upper surface of the first reinforced concrete body. Then, the steel frame receiving jig is set on the hardened leveling material.

この発明によれば、溶接作業を行うことなく、高さ調整機構を設置できるので、鉄骨柱の建入れ調整作業を迅速に行うことができる。   According to the present invention, since the height adjustment mechanism can be installed without performing the welding operation, it is possible to quickly perform the installation adjustment operation of the steel column.

本発明によれば、鉄骨柱の建入れを微調整できるうえに、従来のように鋼管の周囲にコンクリートを打設する必要はないので、工期を短縮できる。   According to the present invention, it is possible to finely adjust the erection of the steel column, and it is not necessary to place concrete around the steel pipe as in the prior art, so the work period can be shortened.

本発明の一実施形態に係る建入れ調整方法により建入れ調整された鉄骨柱を有する建物の一部の断面図である。1 is a cross-sectional view of a part of a building having a steel column that has been erected and adjusted by an erection adjustment method according to an embodiment of the present invention. 前記実施形態に係る建入れ調整方法のフローチャートである。It is a flowchart of the erection adjustment method which concerns on the said embodiment. 前記実施形態に係る建入れ調整方法を説明するための図（その１）である。It is a figure (the 1) for demonstrating the erection adjustment method which concerns on the said embodiment. 前記実施形態に係る建入れ調整方法を説明するための図（その２）である。It is FIG. (2) for demonstrating the erection adjustment method which concerns on the said embodiment. 前記実施形態に係る建入れ調整方法を説明するための図（その３）である。It is FIG. (The 3) for demonstrating the erection adjustment method which concerns on the said embodiment. 前記実施形態に係る建入れ調整方法を説明するための図（その４）である。It is FIG. (4) for demonstrating the erection adjustment method which concerns on the said embodiment. 前記実施形態に係る建入れ調整方法を説明するための図（その５）である。It is FIG. (5) for demonstrating the erection adjustment method which concerns on the said embodiment. 本発明の変形例に係る建入れ調整方法に用いられる高さ調整機構の側面図である。It is a side view of the height adjustment mechanism used for the erection adjustment method which concerns on the modification of this invention.

以下、本発明の一実施形態について、図面を参照しながら説明する。
図１は、本発明の一実施形態に係る建入れ調整方法により建入れ調整された鉄骨柱３０を有する建物１の一部の断面図である。
建物１は、複数の鋼管コンクリート杭２０と、これら鋼管コンクリート杭２０の杭頭に打ち込まれて鉛直方向に延びる鉄骨柱３０と、鋼管コンクリート杭２０の杭頭同士を連結する地中梁である鉄骨梁４０Ａと、鉄骨柱３０同士を連結する鉄骨梁４０Ｂと、を含んで構成される。 Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a cross-sectional view of a part of a building 1 having a steel column 30 that has been erected and adjusted by the erection adjustment method according to one embodiment of the present invention.
The building 1 includes a plurality of steel pipe concrete piles 20, steel columns 30 that are driven into the pile heads of the steel pipe concrete piles 20 and extend vertically, and steel beams that are underground beams that connect the pile heads of the steel pipe concrete piles 20 to each other. It includes a beam 40A and a steel beam 40B that connects the steel columns 30 to each other.

鋼管コンクリート杭２０は、鉛直方向に延びる円柱形状のコンクリート体２１と、このコンクリート体２１の上部を囲む円筒形状の鋼管２２と、を備える。
鉄骨柱３０は、鉛直方向に延びて鋼材からなる鉄骨柱本体３１と、この鉄骨柱本体３１から側方に延出して鋼材からなる複数の延出部としての継手部３２と、を備える。
鉄骨梁４０Ａ、４０Ｂは、水平方向に延びる鋼材である。 The steel pipe concrete pile 20 includes a columnar concrete body 21 extending in the vertical direction and a cylindrical steel pipe 22 surrounding the upper portion of the concrete body 21.
The steel column 30 includes a steel column main body 31 that extends in the vertical direction and is made of a steel material, and joint portions 32 that extend from the steel column main body 31 to the side and are made of a steel material.
Steel beam 40A, 40B is a steel material extended in a horizontal direction.

以上の建物１の基礎部分を構築する手順について、図２のフローチャートを参照しながら説明する。
ステップＳ１では、図３に示すように、鋼管コンクリート杭２０を地盤２に構築する。
具体的には、地盤２の地表面３にて杭芯の位置出しを行い、地表面３の杭芯位置に口元管５０を打ち込む。 The procedure for constructing the foundation part of the building 1 will be described with reference to the flowchart of FIG.
In step S1, the steel pipe concrete pile 20 is constructed on the ground 2 as shown in FIG.
Specifically, the pile core is positioned on the ground surface 3 of the ground 2, and the mouth tube 50 is driven into the pile core position on the ground surface 3.

次に、図示しない杭打機により、口元管５０の内部を掘削して杭穴４を形成しながら、鋼管コンクリート杭２０を構築する。このとき、鋼管コンクリート杭２０の杭内には、セメントミルク２１を打設する。   Next, the steel pipe concrete pile 20 is constructed while excavating the inside of the mouth pipe 50 to form the pile hole 4 with a pile driving machine (not shown). At this time, cement milk 21 is placed in the pile of the steel pipe concrete pile 20.

ステップＳ２では、図４に示すように、杭穴４の埋め戻しを行う。
具体的には、鋼管コンクリート杭２０の杭内のセメントミルク２１を図示しないバキュームで所定の深さになるまで回収する。次に、鋼管コンクリート杭２０の鋼管２２の上端の開口をコンクリート蓋５２で塞いで養生する。続いて、口元管５０を撤去して、杭穴４の埋め戻しを行う。 In step S2, the pile hole 4 is back-filled as shown in FIG.
Specifically, the cement milk 21 in the pile of the steel pipe concrete pile 20 is collected until it reaches a predetermined depth with a vacuum (not shown). Next, the upper end opening of the steel pipe 22 of the steel pipe concrete pile 20 is closed with a concrete lid 52 and cured. Subsequently, the mouth tube 50 is removed and the pile hole 4 is backfilled.

ステップＳ３では、図５に示すように、地盤２を基礎底面５まで掘削する。
具体的には、地盤２を地表面３から基礎底面５まで掘削して、鋼管コンクリート杭２０の杭頭部のコンクリート蓋５２を露出させる。 In step S3, the ground 2 is excavated to the foundation bottom 5 as shown in FIG.
Specifically, the ground 2 is excavated from the ground surface 3 to the foundation bottom surface 5 to expose the concrete lid 52 of the pile head of the steel pipe concrete pile 20.

ステップＳ４では、図５に示すように、鋼管コンクリート杭２０の杭頭部に、１回目の補強コンクリートを打設する。
具体的には、コンクリート蓋５２を取り外して、鋼管２２の杭頭部の内部に、１回目の補強コンクリートとして普通コンクリートを所定高さまで打設して、第１の補強コンクリート体５３を構築する。次に、第１の補強コンクリート体５３の上にレベリング材５４を打設して、セルフレベリングを行う。 In step S4, as shown in FIG. 5, the first reinforced concrete is placed on the pile head of the steel pipe concrete pile 20.
Specifically, the concrete lid 52 is removed, and ordinary concrete is placed as a first reinforcing concrete to a predetermined height inside the pile head of the steel pipe 22 to construct a first reinforcing concrete body 53. Next, a leveling material 54 is placed on the first reinforced concrete body 53 to perform self-leveling.

ステップＳ５では、図５に示すように、鉄骨受け治具５５をセットし、鉄骨柱３０の建入れ調整と高さ調整機構としての調整治具６０を取り付ける。
すなわち、レベリング材５４が硬化した後、このレベリング材５４の上に墨出しをして、鉄骨受け治具５５を載置する。
また、鋼管２２の上端の例えば４箇所に、調整治具６０を溶接固定する。この調整治具６０は、鋼管２２の外周側面に溶接固定された長ナット６１と、この長ナット６１に螺合されたボルト６２と、を備える。この調整治具６０では、ボルト６２を回転させることにより、ボルト６２の長ナット６１からの突出寸法が変化する。 In step S5, as shown in FIG. 5, the steel frame receiving jig 55 is set, and the adjustment jig 60 as the adjustment mechanism for the steel column 30 and the height adjustment mechanism is attached.
That is, after the leveling material 54 is hardened, marking is performed on the leveling material 54 and the steel frame receiving jig 55 is placed.
Moreover, the adjustment jig 60 is welded and fixed to, for example, four places on the upper end of the steel pipe 22. The adjusting jig 60 includes a long nut 61 welded and fixed to the outer peripheral side surface of the steel pipe 22 and a bolt 62 screwed to the long nut 61. In the adjusting jig 60, the projecting dimension of the bolt 62 from the long nut 61 is changed by rotating the bolt 62.

ステップＳ６では、図６に示すように、鋼管コンクリート杭２０の杭頭部に鉄骨柱３０を建て込む。
具体的には、鋼管２２のコンクリート打設面に設置した鉄骨受け治具５５の上に鉄骨柱３０の下端を載せるとともに、鉄骨柱３０の継手部３２を調整治具６０のボルト６２に載せる。これにより、鉄骨柱３０の下端は、鉄骨受け治具５５を介して、鋼管２２内のコンクリート打設面に支持されるとともに、鉄骨柱３０の各継手部３２は、調整治具６０に支持される。 In step S6, as shown in FIG. 6, the steel column 30 is built in the pile head of the steel pipe concrete pile 20. As shown in FIG.
Specifically, the lower end of the steel column 30 is placed on the steel frame receiving jig 55 installed on the concrete placing surface of the steel pipe 22, and the joint portion 32 of the steel column 30 is placed on the bolt 62 of the adjustment jig 60. Thereby, the lower end of the steel column 30 is supported by the concrete placing surface in the steel pipe 22 via the steel frame receiving jig 55, and each joint portion 32 of the steel column 30 is supported by the adjusting jig 60. The

ステップＳ７では、図６に示すように、鉄骨柱３０の建入れを調整する。
具体的には、各調整治具のボルト６２を回転させて、ボルト６２の長ナット６１からの突出寸法を変化させることで、鉄骨柱３０の継手部３２の高さを調整して、鉄骨柱３０の建入れを調整する。 In step S7, as shown in FIG. 6, the erection of the steel column 30 is adjusted.
Specifically, the height of the joint portion 32 of the steel column 30 is adjusted by rotating the bolt 62 of each adjustment jig and changing the projecting dimension of the bolt 62 from the long nut 61. Adjust 30 erections.

ステップＳ８では、図７に示すように、鉄骨柱３０に地中梁である鉄骨梁４０Ａを接合して、鋼管コンクリート杭２０の杭頭部に、２回目の補強コンクリートを打設する。
すなわち、鋼管２２の杭頭部の内部に、２回目の補強コンクリートとして高流動コンクリートを打設して、第２の補強コンクリート体５６を構築する。 In step S <b> 8, as shown in FIG. 7, a steel beam 40 </ b> A that is an underground beam is joined to the steel column 30, and the second reinforced concrete is placed on the pile head of the steel pipe concrete pile 20.
In other words, the second reinforced concrete body 56 is constructed by placing high-fluidity concrete as the second reinforced concrete inside the pile head of the steel pipe 22.

本実施形態によれば、以下のような効果がある。
（１）鋼管２２の上端側の複数箇所に調整治具６０を設け、この調整治具６０で鉄骨柱３０の継手部３２の高さを調整することで、鉄骨柱３０の建入れを調整した。したがって、鉄骨柱３０の建入れを容易に微調整できるうえに、従来のように鋼管の周囲にコンクリートを打設する必要はないので、工期を短縮できる。 According to this embodiment, there are the following effects.
(1) The adjustment jig 60 is provided at a plurality of positions on the upper end side of the steel pipe 22, and the height of the joint portion 32 of the steel column 30 is adjusted by the adjustment jig 60 to adjust the installation of the steel column 30. . Therefore, the construction of the steel column 30 can be easily finely adjusted, and it is not necessary to place concrete around the steel pipe as in the conventional case, so that the construction period can be shortened.

（２）長ナット６１とボルト６２とを含んで調整治具６０を構成したので、簡易な構成であり、調整治具６０を低コストで製作できる。   (2) Since the adjustment jig 60 is configured to include the long nut 61 and the bolt 62, the adjustment jig 60 can be manufactured at a low cost with a simple configuration.

なお、本発明は前記実施形態に限定されるものではなく、本発明の目的を達成できる範囲での変形、改良等は本発明に含まれるものである。
例えば、本実施形態では、調整治具６０を用いて鉄骨柱３０の建入れを調整したが、これに限らず、図８に示すように、調整治具７０を用いて鉄骨柱３０の建入れを調整してもよい。 It should be noted that the present invention is not limited to the above-described embodiment, and modifications, improvements, etc. within a scope that can achieve the object of the present invention are included in the present invention.
For example, in this embodiment, the installation of the steel column 30 is adjusted using the adjustment jig 60. However, the present invention is not limited to this, and the installation of the steel column 30 is performed using the adjustment jig 70 as shown in FIG. May be adjusted.

この調整治具７０は、コンクリート打設面に仮固定される下部プレート７１と、この下部プレート７１に設けられて鉛直方向に伸縮可能な伸縮部材７２と、この伸縮部材７２の上端に設けられて鉄骨柱３０の継手部３２を支持する上部プレート７３と、を含んで構成される。
このようにすれば、上述の（１）の硬化に加えて、以下のような効果がある。
（３）溶接作業を行うことなく、調整治具７０を設置できるので、鉄骨柱３０の建入れ調整作業を迅速に行うことができる。 The adjustment jig 70 is provided at a lower plate 71 temporarily fixed to the concrete placing surface, an expansion / contraction member 72 provided on the lower plate 71 and capable of extending / contracting in the vertical direction, and an upper end of the expansion / contraction member 72. And an upper plate 73 that supports the joint portion 32 of the steel column 30.
If it does in this way, in addition to above-mentioned hardening of (1), there are the following effects.
(3) Since the adjustment jig 70 can be installed without performing a welding operation, the installation adjustment operation of the steel column 30 can be performed quickly.

１…建物
２…地盤
３…地表面
４…杭穴
５…基礎底面
２０…鋼管コンクリート杭
２１…セメントミルク
２２…鋼管
３０…鉄骨柱
３１…鉄骨柱本体
３２…継手部（延出部）
４０Ａ、４０Ｂ…鉄骨梁
５０…口元管
５２…コンクリート蓋
５３…第１の補強コンクリート体
５４…レベリング材
５５…鉄骨受け治具
５６…第２の補強コンクリート体
６０…調整治具（高さ調整機構）
６１…長ナット
６２…ボルト
７０…調整治具（高さ調整機構）
７１…下部プレート
７２…伸縮部材
７３…上部プレート DESCRIPTION OF SYMBOLS 1 ... Building 2 ... Ground 3 ... Ground surface 4 ... Pile hole 5 ... Foundation bottom 20 ... Steel pipe concrete pile 21 ... Cement milk 22 ... Steel pipe 30 ... Steel column 31 ... Steel column main body 32 ... Joint part (extension part)
40A, 40B ... Steel beam 50 ... Mouth pipe 52 ... Concrete lid 53 ... First reinforced concrete body 54 ... Leveling material 55 ... Steel frame receiving jig 56 ... Second reinforced concrete body 60 ... Adjustment jig (height adjustment mechanism) )
61 ... long nut 62 ... bolt 70 ... adjustment jig (height adjustment mechanism)
71 ... Lower plate 72 ... Expandable member 73 ... Upper plate

Claims (3)

鋼管コンクリート杭に打ち込む鉄骨柱の建入れを調整する方法であって、
前記鉄骨柱には、当該鉄骨柱から側方に延出する複数の延出部が設けられており、
地盤に杭穴を形成して当該杭穴に前記鋼管コンクリート杭の鋼管を設けるとともに、当該鋼管内に所定高さまでセメントミルクを打設し、前記鋼管上端の開口を蓋で塞いで養生する工程と、
前記杭穴を埋め戻す工程と、
前記地盤を掘削して前記前記鋼管コンクリート杭の杭頭部の蓋を露出させる工程と、
前記蓋を取り外して、前記鋼管の杭頭部の内部に所定高さまでコンクリートを打設して第１の補強コンクリート体を構築する工程と、
当該第１の補強コンクリート体の上に鉄骨受け治具をセットするとともに、前記鋼管の上端側の複数箇所に高さ調整機構を設ける工程と、
当該鋼管内の前記鉄骨受け治具の上に前記鉄骨柱の下端を載せるとともに、当該鉄骨柱の延出部を前記複数の高さ調整機構に載せる工程と、
当該複数の高さ調整機構を調整することで、前記鉄骨柱の建入れを調整する工程と、
前記第１の補強コンクリート体の上でかつ前記鉄骨柱の周囲にコンクリートを打設して、第２の補強コンクリート体を構築する工程と、を備える建入れ調整方法。 A method for adjusting the construction of a steel column driven into a steel pipe concrete pile,
The steel column is provided with a plurality of extending portions extending laterally from the steel column,
A step of forming a pile hole in the ground and providing a steel pipe of the steel pipe concrete pile in the pile hole, placing cement milk to a predetermined height in the steel pipe, and covering the opening at the upper end of the steel pipe with a lid and curing ,
Backfilling the pile hole;
Excavating the ground to expose the pile head lid of the steel pipe concrete pile;
Removing the lid and constructing a first reinforced concrete body by placing concrete up to a predetermined height inside the pile head of the steel pipe; and
Setting a steel frame receiving jig on the first reinforced concrete body, and providing a height adjusting mechanism at a plurality of locations on the upper end side of the steel pipe;
Placing the lower end of the steel column on the steel receiving jig in the steel pipe, and placing the extended portion of the steel column on the plurality of height adjustment mechanisms;
Adjusting the construction of the steel column by adjusting the plurality of height adjustment mechanisms; and
Placing the concrete on the first reinforced concrete body and around the steel column to construct a second reinforced concrete body . 前記第１の補強コンクリート体の上に鉄骨受け治具をセットする際、当該第１の補強コンクリート体の上面にレベリング材を打設し、当該硬化したレベリング材の上に前記鉄骨受け治具をセットし、
前記高さ調整機構は、前記鋼管の外周側面に溶接されたナットと、当該ナットに螺合されるボルトと、を含んで構成されることを特徴とする請求項１に記載の建入れ調整方法。 When setting the steel receiving jig on the first reinforced concrete body, a leveling material is placed on the upper surface of the first reinforcing concrete body, and the steel receiving jig is placed on the hardened leveling material. Set and
The erection adjustment method according to claim 1, wherein the height adjustment mechanism includes a nut welded to an outer peripheral side surface of the steel pipe and a bolt screwed into the nut. . 鋼管コンクリート杭と、請求項１または２の建入れ調整方法により建入れが調整された鉄骨柱と、を備えることを特徴とする建物。 A building comprising: a steel pipe concrete pile; and a steel column whose erection is adjusted by the erection adjustment method according to claim 1 or 2 .
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