JP6163409B2 - Steel frame construction method and column fall prevention device - Google Patents

Steel frame construction method and column fall prevention device Download PDF

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JP6163409B2
JP6163409B2 JP2013237470A JP2013237470A JP6163409B2 JP 6163409 B2 JP6163409 B2 JP 6163409B2 JP 2013237470 A JP2013237470 A JP 2013237470A JP 2013237470 A JP2013237470 A JP 2013237470A JP 6163409 B2 JP6163409 B2 JP 6163409B2
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column
prevention device
steel
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JP2015096690A (en
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武彦 宮本
武彦 宮本
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Taisei Corp
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Description

本発明は、鉄骨建方方法および柱転倒防止装置に関する。   The present invention relates to a steel frame construction method and a column overturn prevention device.

従来より、鉄骨建方を行う際に、鉄骨柱を建て込んで、その後、この鉄骨柱と他の鉄骨柱との間に鉄骨梁を架設するまでの期間、鉄骨柱建方治具により鉄骨柱の転倒を防止することが行われる。   Conventionally, when a steel frame is built, a steel column is built by a steel column construction jig until a steel beam is built between this steel column and another steel column. It is done to prevent falling.

鉄骨柱建方治具は、例えば、支持地盤に基礎を設けておき、この基礎と鉄骨柱の側面とを連結するものである（特許文献１参照）。具体的には、この鉄骨柱建方治具は、基礎から鉄骨柱の側面に向かって直線状に延びる斜材である。
この鉄骨柱建方治具によれば、鉄骨柱に転倒モーメントが作用しても、鉄骨柱が鉄骨柱建方治具を介して支持地盤から支持されるので、鉄骨柱の転倒防止を図ることができる。 The steel column construction jig is, for example, provided with a foundation on a supporting ground, and connects the foundation and the side surface of the steel column (see Patent Document 1). Specifically, the steel column construction jig is an oblique material extending linearly from the foundation toward the side surface of the steel column.
According to this steel column building jig, even if a falling moment acts on the steel column, the steel column is supported from the support ground via the steel column building jig, so that the steel column can be prevented from falling. Can do.

特開平１１−２１７９３９号公報JP 11-217939 A

しかしながら、以上のような鉄骨柱建方治具では、基礎を設ける必要があるため、治具の設置にかなりの手間がかかるという問題があった。
そこで、基礎を設けずに鉄骨柱建方治具を取り付けることが考えられる。しかしながら、以上の鉄骨柱建方治具は、支持地盤から鉄骨柱の側面まで延びる斜材であるため、鉄骨柱に転倒モーメントが作用すると、鉄骨柱建方治具の下端面と支持地盤とがずれてしまい、鉄骨柱を支持できないおそれがあった。 However, in the steel column construction jig as described above, since it is necessary to provide a foundation, there is a problem that it takes considerable time to install the jig.
Therefore, it is conceivable to attach a steel column construction jig without providing a foundation. However, since the steel column construction jig described above is a diagonal material extending from the support ground to the side of the steel column, if a falling moment acts on the steel column, the lower end surface of the steel column construction jig and the support ground are There was a possibility that the steel column could not be supported due to displacement.

本発明は、鉄骨柱の転倒を低コストで確実に防止できる鉄骨建方方法および柱転倒防止装置を提供することを目的とする。   It is an object of the present invention to provide a steel frame construction method and a column overturn prevention device that can reliably prevent overturn of a steel column at low cost.

請求項１に記載の鉄骨建方方法は、鉄骨梁（例えば、後述の外周梁２２）を支持する鉄骨柱（例えば、後述の外周柱２１）の建方方法であって、略水平に延びる水平材（例えば、後述の水平材１１）と、略鉛直に延びて当該水平材の両端を支持する一対の鉛直材（例えば、後述の鉛直材１２）と、当該鉛直材の支持地盤（例えば、後述の支持地盤２）からの高さを調整する一対の高さ調整機構（例えば、後述の高さ調整機構１３）と、を備える柱転倒防止装置（例えば、後述の柱転倒防止装置１０）を用意しておき、前記鉄骨柱の建方を行う工程（例えば、後述のステップＳ１）と、前記柱転倒防止装置を設置して、前記鉄骨柱を当該柱転倒防止装置の水平材に仮固定する工程（例えば、後述のステップＳ２）と、当該鉄骨柱と既に構築した鉄骨架構（例えば、後述の鉄骨架構１Ａ）との間に前記鉄骨梁を架設する工程（例えば、後述のステップＳ３）と、前記柱転倒防止装置を当該鉄骨柱から取り外す工程（例えば、後述のステップＳ５）と、を備えることを特徴とする。   The method of building a steel frame according to claim 1 is a method of building a steel column (e.g., an outer peripheral column 21 described later) that supports a steel beam (e.g., an outer beam 22 described later), and is a horizontal extending substantially horizontally. A material (for example, a horizontal material 11 described later), a pair of vertical materials (for example, a vertical material 12 described later) extending substantially vertically and supporting both ends of the horizontal material, and a supporting ground (for example, described later) of the vertical material A column fall prevention device (for example, a column fall prevention device 10 to be described later) having a pair of height adjustment mechanisms (for example, a height adjustment mechanism 13 to be described later) for adjusting the height from the support ground 2) is prepared. A step of constructing the steel column (for example, step S1 described later), a step of installing the column fall prevention device, and temporarily fixing the steel column to a horizontal member of the column fall prevention device (For example, step S2 described later) and the steel column already constructed A step (for example, step S3 described later) for laying the steel beam between a frame (for example, a later-described steel frame 1A) and a step for removing the column overturn prevention device from the steel column (for example, a step described later) S5).

請求項２に記載の柱転倒防止装置は、鉄骨柱の転倒を防止する柱転倒防止装置であって、略水平に延びて当該鉄骨柱の所定の高さ位置に仮固定される水平材と、略鉛直に延びて当該水平材の両端を支持する一対の鉛直材と、当該鉛直材の支持地盤からの高さを調整する一対の高さ調整機構と、を備えることを特徴とする。   The column overturn prevention device according to claim 2 is a column overturn prevention device for preventing a steel column from overturning, a horizontal member extending substantially horizontally and temporarily fixed at a predetermined height position of the steel column, A pair of vertical members extending substantially vertically and supporting both ends of the horizontal member, and a pair of height adjusting mechanisms for adjusting the height of the vertical member from the supporting ground are provided.

本発明によれば、柱転倒防止装置を、水平材、鉛直材、および高さ調整機構を含んで門型の形状としたので、鉄骨柱に転倒モーメントが作用しても、柱転倒防止装置の下端面が支持地盤を押圧して支持する。したがって、従来のように柱転倒防止装置の下端面と支持地盤とが摺動する構造ではないため、鉄骨柱の転倒を確実に防止できる。また、従来の柱転倒防止装置のような基礎が不要となるので、低コストである。   According to the present invention, since the column overturn prevention device has a gate shape including the horizontal member, the vertical member, and the height adjustment mechanism, even if the overturning moment acts on the steel column, the column overturn prevention device The lower end surface supports and supports the supporting ground. Therefore, since it does not have a structure in which the lower end surface of the column overturn prevention device and the support ground slide as in the prior art, the steel column can be reliably prevented from overturning. Further, since a foundation such as a conventional column overturn prevention device is not required, the cost is low.

また、鉄骨柱を建て込んで、鉄骨柱に柱転倒防止装置を取り付けて、この柱転倒防止装置でこの鉄骨柱の転倒を防止しておく。そして、この状態で、この鉄骨柱と既に構築した鉄骨架構との間に鉄骨梁を架設して、その後、柱転倒防止装置を取り外す。この作業を繰り返すことで、柱転倒防止装置を転用できるので、施工費を抑えることができる。   Moreover, a steel column is built in, a column fall prevention device is attached to the steel column, and the steel column is prevented from falling by this column fall prevention device. In this state, a steel beam is installed between the steel column and the already constructed steel frame, and then the column overturn prevention device is removed. By repeating this work, the column fall prevention device can be diverted, so that the construction cost can be reduced.

また、柱転倒防止装置を、水平材、鉛直材、および高さ調整機構を含んだ簡易な構成としたので、低コストで製作できる。
また、柱転倒防止装置は、鉄骨柱の任意の高さ位置に取り付け可能であり、細径から太径まで種々のサイズの柱に適用可能である。 Further, since the column overturn prevention device has a simple configuration including a horizontal member, a vertical member, and a height adjusting mechanism, it can be manufactured at low cost.
Moreover, the column fall prevention device can be attached to any height position of the steel column, and can be applied to columns of various sizes from a small diameter to a large diameter.

本発明の一実施形態に係る柱転倒防止装置が適用される鉄骨架構の側面である。It is a side surface of the steel frame to which the column fall prevention device concerning one embodiment of the present invention is applied. 前記実施形態に係る柱転倒防止装置を外周柱に取り付けた状態を示す平面図および側面図である。It is the top view and side view which show the state which attached the column fall prevention apparatus which concerns on the said embodiment to the outer periphery pillar. 前記実施形態に係る柱転倒防止装置を用いて鉄骨架構を構築する手順のフローチャートである。It is a flowchart of the procedure which constructs | assembles a steel frame using the column fall prevention apparatus which concerns on the said embodiment. 前記実施形態に係る鉄骨架構を構築する手順を説明するための図（その１）である。It is FIG. (1) for demonstrating the procedure which builds the steel frame which concerns on the said embodiment. 前記実施形態に係る鉄骨架構を構築する手順を説明するための図（その２）である。It is FIG. (2) for demonstrating the procedure which constructs the steel frame which concerns on the said embodiment. 前記実施形態に係る鉄骨架構を構築する手順を説明するための図（その３）である。It is FIG. (3) for demonstrating the procedure which builds the steel frame which concerns on the said embodiment.

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柱転倒防止装置１０が適用される鉄骨架構１の側面図である。
鉄骨架構１は、例えば、大型倉庫の骨組みであり、建物外周に沿って支持地盤２に設けられた基礎２０と、この基礎２０の上に所定間隔おきに立設された鉄骨柱としての外周柱２１と、隣接する外周柱２１の柱頭部同士の間に架設された鉄骨梁としての外周梁２２と、互いに対向する外周柱２１の柱頭部同士の間に架設された屋根下地２３と、隣接する外周柱２１同士の間に設けられて基礎２０から外周梁２２に至る間柱２４と、外周柱２１の柱脚部から間柱２４の柱頭部に至るブレース２５と、を備える。 Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a side view of a steel frame 1 to which a column overturn prevention device 10 according to an embodiment of the present invention is applied.
The steel frame 1 is, for example, a framework of a large warehouse, a foundation 20 provided on the support ground 2 along the outer periphery of the building, and an outer column as a steel column standing on the foundation 20 at predetermined intervals. 21 and an outer peripheral beam 22 as a steel beam erected between column heads of adjacent outer peripheral columns 21 and a roof base 23 erected between the column heads of outer peripheral columns 21 facing each other. A spacer 24 is provided between the outer peripheral columns 21 and extends from the foundation 20 to the outer peripheral beam 22, and a brace 25 extends from the column base of the outer peripheral column 21 to the column head of the intermediate column 24.

柱転倒防止装置１０は、外周柱２１の転倒を防止するものである。
図２は、柱転倒防止装置１０を外周柱２１に取り付けた状態を示す平面図および側面図である。
柱転倒防止装置１０は、略水平に延びて外周柱２１の中間高さ位置に仮固定される水平材１１と、略鉛直に延びて水平材１１の両端を支持する一対の鉛直材１２と、鉛直材１２の支持地盤２からの高さを調整する一対の高さ調整機構１３と、を備える。 The column overturn prevention device 10 prevents the outer peripheral column 21 from overturning.
FIG. 2 is a plan view and a side view showing a state in which the column falling prevention device 10 is attached to the outer peripheral column 21.
The column overturn prevention device 10 includes a horizontal member 11 that extends substantially horizontally and is temporarily fixed at an intermediate height position of the outer peripheral column 21, a pair of vertical members 12 that extend substantially vertically and support both ends of the horizontal member 11, And a pair of height adjusting mechanisms 13 for adjusting the height of the vertical member 12 from the support ground 2.

水平材１１は、外周柱２１を挟んで配置された２本の溝形鋼３０と、外周柱２１を挟んで配置されてかつこれら溝形鋼３０同士の間に架設された４本の山形鋼３１と、溝形鋼３０の両端に設けられた一対の取合金物３２と、を備える。   The horizontal member 11 includes two channel steels 30 disposed with the outer peripheral column 21 interposed therebetween, and four angle steels disposed with the outer peripheral column 21 interposed therebetween and installed between the channel steels 30. 31 and a pair of alloyed products 32 provided at both ends of the channel steel 30.

溝形鋼３０は、取合金物３２に着脱可能にボルト固定される。また、山形鋼３１は、溝形鋼３０に着脱可能にボルト固定される。
一対の鉛直材１２は、それぞれ、仮設材である四角支柱である。
一対の高さ調整機構１３は、それぞれ、仮設材であるジャッキベースである。 The channel steel 30 is detachably bolted to the alloy alloy 32. Further, the angle steel 31 is detachably bolted to the groove steel 30.
Each of the pair of vertical members 12 is a square column that is a temporary member.
Each of the pair of height adjusting mechanisms 13 is a jack base that is a temporary member.

以下、鉄骨架構１を構築する手順について、図３のフローチャートを参照しながら説明する。
まず、初期状態では、図４に示すように、鉄骨架構１の一部が、鉄骨架構１Ａとして既に構築してあるものとする。 Hereinafter, the procedure for constructing the steel frame 1 will be described with reference to the flowchart of FIG.
First, in the initial state, as shown in FIG. 4, it is assumed that a part of the steel frame 1 has already been constructed as a steel frame 1A.

ステップ１では、図５に示すように、既に構築した鉄骨架構１Ａに隣接して、１スパン分の外周柱２１の建方を行う。つまり１本の外周柱２１を建て込む。
ステップＳ２では、図２に示すように、柱転倒防止装置１０を設置して、外周柱２１をこの柱転倒防止装置１０の水平材１１に仮固定する。 In step 1, as shown in FIG. 5, the outer peripheral column 21 for one span is constructed adjacent to the already constructed steel frame 1A. That is, one outer peripheral pillar 21 is built.
In step S <b> 2, as shown in FIG. 2, the column fall prevention device 10 is installed, and the outer peripheral column 21 is temporarily fixed to the horizontal member 11 of the column fall prevention device 10.

ステップＳ３では、図６に示すように、外周柱２１と既に構築した鉄骨架構１Ａとの間に外周梁２２を架設する。
ステップＳ４では、屋根下地２３、間柱２４、およびブレース２５を取り付ける。
ステップＳ５では、柱転倒防止装置１０を外周柱２１から取り外す。
ステップＳ６では、以上のステップＳ１〜Ｓ５を繰り返す。 In step S3, as shown in FIG. 6, the outer peripheral beam 22 is installed between the outer peripheral column 21 and the already constructed steel frame 1A.
In step S4, the roof base 23, the stud 24, and the brace 25 are attached.
In step S <b> 5, the column falling prevention device 10 is removed from the outer peripheral column 21.
In step S6, the above steps S1 to S5 are repeated.

本実施形態によれば、以下のような効果がある。
（１）柱転倒防止装置１０を、水平材１１、鉛直材１２、および高さ調整機構１３を含んで門型の形状としたので、外周柱２１に面外方向つまり外周柱２１の並び方向に交差する方向に転倒モーメントが作用しても、柱転倒防止装置１０の下端面が支持地盤２を押圧して支持する。したがって、従来のように柱転倒防止装置の下端面と支持地盤とが摺動する構造ではないため、外周柱２１の転倒を確実に防止できる。また、従来の柱転倒防止装置のような基礎が不要となるので、低コストである。 According to this embodiment, there are the following effects.
(1) Since the column fall prevention device 10 has a gate shape including the horizontal member 11, the vertical member 12, and the height adjustment mechanism 13, the outer column 21 is arranged in an out-of-plane direction, that is, in the direction in which the outer columns 21 are arranged. Even if a falling moment acts in the intersecting direction, the lower end surface of the column falling prevention device 10 presses and supports the support ground 2. Therefore, since it does not have a structure in which the lower end surface of the column toppling prevention device and the supporting ground slide as in the prior art, the outer peripheral column 21 can be reliably prevented from falling. Further, since a foundation such as a conventional column overturn prevention device is not required, the cost is low.

また、１スパン分の外周柱２１を建て込んで、外周柱２１に柱転倒防止装置１０を取り付けて、この柱転倒防止装置１０でこの外周柱２１の転倒を防止しておく。そして、この状態で、この外周柱２１と既に構築した鉄骨架構１Ａとの間に外周梁２２を架設して、その後、柱転倒防止装置１０を取り外す。この作業を繰り返すことで、柱転倒防止装置１０を転用できるので、施工費を抑えることができる。   Further, an outer peripheral column 21 for one span is built in, and the column fall prevention device 10 is attached to the outer column 21, and the outer column 21 is prevented from falling by the column fall prevention device 10. In this state, the outer peripheral beam 22 is installed between the outer peripheral column 21 and the already constructed steel frame 1A, and then the column overturn prevention device 10 is removed. By repeating this work, the column fall prevention device 10 can be diverted, so that the construction cost can be reduced.

また、柱転倒防止装置１０を、水平材１１、鉛直材１２、および高さ調整機構１３を含んだ簡易な構成としたので、低コストで製作できる。
また、柱転倒防止装置１０は、外周柱２１の任意の高さ位置に取り付け可能であり、細径から太径まで種々のサイズの柱に適用可能である。 Moreover, since the column overturn prevention device 10 has a simple configuration including the horizontal member 11, the vertical member 12, and the height adjusting mechanism 13, it can be manufactured at low cost.
Further, the column overturn prevention device 10 can be attached to an arbitrary height position of the outer peripheral column 21 and can be applied to columns of various sizes from a small diameter to a large diameter.

（２）高さ調整機構１３を調整することで、水平材１１を外周柱２１の任意の位置に取り付けできるうえに、支持地盤２に多少の凹凸があっても、高さ調整機構１３によりこの凹凸を吸収できる。   (2) By adjusting the height adjusting mechanism 13, the horizontal member 11 can be attached to an arbitrary position of the outer peripheral column 21, and even if the support ground 2 has some unevenness, the height adjusting mechanism 13 Can absorb irregularities.

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。   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.

１…鉄骨架構
１Ａ…既に構築した一部の鉄骨架構
２…支持地盤
１０…柱転倒防止装置
１１…水平材
１２…鉛直材
１３…高さ調整機構
２０…基礎
２１…外周柱（鉄骨柱）
２２…外周梁（鉄骨梁）
２３…屋根下地
２４…間柱
２５…ブレース
３０…溝形鋼
３１…山形鋼
３２…取合金物 DESCRIPTION OF SYMBOLS 1 ... Steel frame 1A ... Some already constructed steel frames 2 ... Support ground 10 ... Column fall prevention device 11 ... Horizontal material 12 ... Vertical material 13 ... Height adjustment mechanism 20 ... Foundation 21 ... Outer column (steel column)
22 ... Outer beam (steel beam)
23 ... Roof foundation 24 ... Spring 25 ... Brace 30 ... Groove 31

Claims (2)

鉄骨梁を支持する鉄骨柱の建方方法であって、
略水平に延びる水平材と、略鉛直に延びて当該水平材の両端を支持する一対の鉛直材と、当該鉛直材の支持地盤からの高さを調整する一対の高さ調整機構と、を備える柱転倒防止装置を用意しておき、
前記鉄骨柱の建方を行う工程と、
前記柱転倒防止装置を設置して、前記鉄骨柱を当該柱転倒防止装置の水平材に仮固定する工程と、
当該鉄骨柱と既に構築した鉄骨架構との間に前記鉄骨梁を架設する工程と、
前記柱転倒防止装置を当該鉄骨柱から取り外す工程と、を備えることを特徴とする鉄骨建方方法。 A method for constructing a steel column that supports a steel beam,
A horizontal member extending substantially horizontally; a pair of vertical members extending substantially vertically to support both ends of the horizontal member; and a pair of height adjusting mechanisms for adjusting the height of the vertical member from the support ground. Prepare a column fall prevention device,
A step of constructing the steel column;
Installing the column fall prevention device and temporarily fixing the steel column to the horizontal member of the column fall prevention device;
Laying the steel beam between the steel column and the already constructed steel frame;
Removing the column fall prevention device from the steel column. 鉄骨柱の転倒を防止する柱転倒防止装置であって、
略水平に延びて当該鉄骨柱の所定の高さ位置に仮固定される水平材と、
略鉛直に延びて当該水平材の両端を支持する一対の鉛直材と、
当該鉛直材の支持地盤からの高さを調整する一対の高さ調整機構と、を備えることを特徴とする柱転倒防止装置。 A column fall prevention device for preventing the fall of a steel column,
A horizontal member extending substantially horizontally and temporarily fixed at a predetermined height position of the steel column;
A pair of vertical members extending substantially vertically and supporting both ends of the horizontal member;
A column fall prevention device comprising: a pair of height adjustment mechanisms for adjusting the height of the vertical member from the support ground.
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