JP5365819B2 - Base plate installation structure and construction method - Google Patents
Base plate installation structure and construction method Download PDFInfo
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- JP5365819B2 JP5365819B2 JP2012107989A JP2012107989A JP5365819B2 JP 5365819 B2 JP5365819 B2 JP 5365819B2 JP 2012107989 A JP2012107989 A JP 2012107989A JP 2012107989 A JP2012107989 A JP 2012107989A JP 5365819 B2 JP5365819 B2 JP 5365819B2
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Description
本発明は、設置部に一体化されているアンカーボルトとベースプレートに形成されたアンカーボルト貫通孔に前記アンカーボルトを貫通するボルト挿入孔を有する子座金と、この子座金を挿入する貫通孔を偏心位置に有する親座金とからなる親子座金を介して前記アンカーボルトにねじ込んだナットでベースプレートが、前記設置部に一体化されてなるベースプレート設置構造とその施工方法に関する。The present invention provides an anchor bolt integrated with an installation portion, a child washer having a bolt insertion hole for penetrating the anchor bolt in an anchor bolt through hole formed in a base plate, and a through hole for inserting the child washer is eccentric. The present invention relates to a base plate installation structure in which a base plate is integrated into the installation portion with a nut screwed into the anchor bolt through a parent and washer comprising a parent washer at a position, and a construction method thereof.
従来、地面に埋設されるアンカーボルトとこれに固定されるベースプレートとの間の孔あわせを容易にするために、下記の特許文献に例示されるように、上記構成を持つ親子座金が幾度となく提案されてきた。
しかし、当該親子座金は、未だ実用に供されるようなものではなかった。ベースプレートに形成されたアンカーボルトの挿通用孔は、この一枚の座金によるものに比べ大きいことが前提であるがために、偏心位置でのアンカーボルトの締め付けは単座金の場合に比べ大きな不均衡応力の発生を招くことになるが、親子座金の組み立て及び取り付けにはスカート部とそれを挿入する孔内面との間にクリアランスを設ける必要があり、このクリアランスによって、前記不均衡応力による座金の変形を招く恐れを払拭し切れなかったことにある。Conventionally, in order to facilitate the hole alignment between the anchor bolt embedded in the ground and the base plate fixed to the anchor bolt, the parent and child washer having the above-described configuration has been repeatedly performed as illustrated in the following patent document. Has been proposed.
However, the parent and child washer has not yet been put to practical use. The anchor bolt insertion hole formed in the base plate is assumed to be larger than that of this single washer, so the anchor bolt tightening in the eccentric position has a larger imbalance than the single washer. However, it is necessary to provide a clearance between the skirt and the inner surface of the hole into which the skirt is inserted, and this clearance causes deformation of the washer due to the unbalanced stress. This is because the fear of inviting people could not be wiped out.
本発明は、このような実情に鑑み、親子座金による組み立ての容易性を確保しながら、座金変形のおそれを払拭できるようにすることを課題とした。 In view of such circumstances, an object of the present invention is to make it possible to eliminate the possibility of washer deformation while ensuring ease of assembly using a parent and child washer.
発明1のベースプレート設置構造は、親子座金の下端面には、突起が形成されていて、少なくとも前記親子座金の下端面と前記設置部上面との間の間隙が、非圧縮性充填材により充満され、かつ、前記突起が、前記非圧縮性充填材中に突入され、前記親子座金と前記充填材が一体化されてなることを特徴とする。In the base plate installation structure according to the first aspect of the present invention , a protrusion is formed on the lower end surface of the parent and washer , and at least a gap between the lower end surface of the parent and washer and the upper surface of the installation part is filled with an incompressible filler. And the said protrusion protrudes in the said incompressible filler, The said parent-child washer and the said filler are integrated, It is characterized by the above-mentioned .
発明2は、発明1のベースプレート設置構造の施工方法であって、前記ベースプレートと設置面との間に間隙を設けて、前記親子座金を介して、アンカーボルトにより前記ベースプレートを設置し、次に前記間隙に非圧縮性充填材を前記親子座金の下端面に形成されている突起が前記非圧縮性充填材中に突入するまで注入して、前記ペースプレート下面及び前記両スカートの下端面と設置面との間に前記充填材を充満させることを特徴とする。
上記構成により、親子座金は、その下端面が、ベースプレートと同様に設置面により直接支えられることとなるので、座金の変形するような不均衡応力を発生する余地がなくなった。 With the above configuration, the lower surface of the parent and child washer is directly supported by the installation surface in the same manner as the base plate, so there is no room for generating an unbalanced stress that causes the washer to deform.
以下に、本発明の最良の実施形態を例示するが、本発明はこれによって限定されるものではない。 Hereinafter, the best embodiment of the present invention will be exemplified, but the present invention is not limited thereto.
(1)は、ベースプレートであって、所定箇所に親座金(3)を挿入する貫通孔(1a)が形成してある。
(2)は、アンカーボルトであって、下半部は、設置部(G)に埋設して律せつしてある。
(3)は、親座金であって、前記貫通孔(1a)に挿入可能な直径の円柱状のスカート部(3b)の上端部に、前記貫通孔(1a)より大きな直径のフランジ部(3a)が一体形成されている。また、これらを貫通し、前記スカート部(3b)の偏心位置に子座金(4)を挿入する貫通孔(3c)が形成してある。
(4)は、子座金であって、前記親座金(3)の貫通孔(3c)に挿入されるスカート部(4b)の上端に、前記貫通孔(3c)より大きな直径のフランジ部(4a)とが一体形成されている。また、これらを貫通し、前記スカート部(4b)の偏心位置に前記アンカーボルト(2)を挿入する貫通孔(4c)が形成してある。
(5)は、前記アンカーボルト(2)にねじ込み、前記ベースプレートを締め付けるナットで、(6)は緩み止めナットである。
(10)は、非圧縮モルタルであって、前記ベースプレート(1)に形成した注入口(1b)より、設置部(G)の上面と、前記ベースプレート(1)との間隙に圧入され充填されたものである。
(10a)は、充填された非圧縮モルタル(10)の内、前記親子座金(3)(4)のスカート部(3b)(4b)の下端面に存在する空間に回りこみここに充満した部分を示す。
当該箇所により、前記スカート部(3b)(4b)の下端面は、非圧縮モルタル(10)を介して設置部に設置されることとなる。(1) is a base plate, in which a through hole (1a) for inserting a master washer (3) is formed at a predetermined location.
(2) is an anchor bolt, and the lower half of the anchor bolt is buried in the installation part (G).
(3) is a washer, and a flange portion (3a) having a diameter larger than that of the through hole (1a) is formed at the upper end of a cylindrical skirt portion (3b) having a diameter that can be inserted into the through hole (1a). ) Are integrally formed. Further, a through hole (3c) is formed through which these are inserted into the washer (4) at an eccentric position of the skirt portion (3b).
(4) is a child washer, and a flange portion (4a) having a diameter larger than that of the through hole (3c) is provided at the upper end of the skirt portion (4b) inserted into the through hole (3c) of the parent washer (3). ) And are integrally formed. Further, a through hole (4c) is formed through which the anchor bolt (2) is inserted at an eccentric position of the skirt portion (4b).
(5) is a nut that is screwed into the anchor bolt (2) and tightens the base plate, and (6) is a locking nut.
(10) is an uncompressed mortar, which is press-fitted and filled into the gap between the upper surface of the installation part (G) and the base plate (1) from the inlet (1b) formed in the base plate (1). Is.
(10a) is a portion of the filled non-compressed mortar (10) that wraps around and fills the space existing at the lower end face of the skirts (3b) (4b) of the parent and washer (3) (4) Indicates.
By the said location, the lower end surface of the said skirt part (3b) (4b) will be installed in an installation part via uncompressed mortar (10).
以上のように、設置する方法を次に説明する。
ベースプレート(1)の設置部(G)の中央部にレベルモルタル(11)を設置し、当該レベルモルタル(11)上に前記ベースプレート(1)を設置する。こののとき、親子座金(3)(4)を介して、アンカーボルト(2)にナット(5)を締め付け、ベースプレート(1)の傾斜角度や位置を調整する。
このようにして、ベースプレート(1)と設置部(G)上面との間に間隙を形成する。
次に、この間隙の周囲を型枠(12)で囲って、非圧縮モルタル(10)の漏れ出しを阻止してから、この間隙に前記注入口(1b)より非硬化状態の非圧縮モルタル(10)を圧入する。このようにしてベースプレート(1)の下面、親子座金の下端面と設置部(G)の上面との間隙を非圧縮モルタル(10)を充満させ、硬化した後に、前記型枠(12)を除去する。As described above, the installation method will be described next.
A level mortar (11) is installed in the center of the installation part (G) of the base plate (1), and the base plate (1) is installed on the level mortar (11). At this time, the nut (5) is fastened to the anchor bolt (2) via the parent and washer (3) (4), and the inclination angle and position of the base plate (1) are adjusted.
In this way, a gap is formed between the base plate (1) and the upper surface of the installation part (G).
Next, the periphery of the gap is surrounded by a mold (12) to prevent leakage of the non-compressed mortar (10), and then the non-compressed mortar in an uncured state from the inlet (1b) is inserted into the gap (1b). 10) is press-fitted. In this way, the space between the lower surface of the base plate (1), the lower end surface of the parent and washer and the upper surface of the installation part (G) is filled with the non-compressed mortar (10) and cured, and then the mold (12) is removed. To do.
なお、前記スカート部(3b)の長さ(L)とベースプレート(1)の厚さとの差は、前記非圧縮モルタル(10)の粘性と圧入圧力により決められる流動性に合わせ、当該下端面の略全体に前記モルタル(10)が接触するようにしてある。
また、図では、(L)がベースプレート(1)の厚さよりも短い場合を示しているが、逆に大きい場合も同様な設定をおこなうのが好ましい。
また、前記スカート部(4b)の長さ(L1)も、同様な調整を行うのが好ましい。
図示では、スカート部(3b)(4b)の下端面が同じレベルとなるように設定したものを示したが、一方が他方より下方に突出していることを排除する意味ではない。
図5から図8に示すように、角錐状の突起(3d)(4d)をスカート部(3b)(4b)に下面に規則的に形成したものである。
このように、突起(3d)(4d)を形成することで、非圧縮モルタル上面との一体化し、強固にかつ安定して、ベースプレートとアンカーボルトとの結合を維持することが可能となった。
なお、突起(3d)(4d)の形状は、角錐状に限らず、半球状、部分球状或いは角柱状、円柱状などの形状を有さしめることも可能である。 The difference between the length (L) of the skirt portion (3b) and the thickness of the base plate (1) is adjusted to the fluidity determined by the viscosity and the press-fitting pressure of the non-compressed mortar (10). The mortar (10) is in contact with substantially the whole.
Moreover, although the figure shows a case where (L) is shorter than the thickness of the base plate (1), it is preferable to perform the same setting when the thickness is larger.
The length (L1) of the skirt portion (4b) is preferably adjusted in the same manner.
In the drawing, the skirt portions (3b) and (4b) are set so that the lower end surfaces thereof are at the same level .
As shown in FIGS. 5 to 8, pyramidal projections (3d) and (4d) are regularly formed on the lower surface of the skirts (3b) and (4b).
Thus, by forming a protrusion (3d) (4d), integral with the uncompressed mortar top, firmly and stably, it has become possible to maintain the coupling between the base plate and anchor bolts .
The shape of the protrusions (3d) and (4d) is not limited to a pyramid shape, but may be a hemispherical shape, a partial spherical shape, a prismatic shape, a cylindrical shape, or the like .
(1)ベースプレート
(1a)貫通孔
(1b)注入口
(2)アンカーボルト
(3)親座金
(3a)フランジ部
(3b)スカート部
(3c)貫通孔
(3d)突起
(4)子座金
(4a)フランジ部
(4b)スカート部
(4c)貫通孔
(4d)突起
(5)ナット
(6)緩み止めナット
(10)非圧縮モルタル
(10a)非圧縮モルタル充満部分
(11)レベルモルタル
(12)型枠
(G)設置部
(L)(L1)スカート部長さ(1) Base plate (1a) Through hole (1b) Injection port (2) Anchor bolt (3) Main washer (3a) Flange (3b) Skirt (3c) Through hole (3d) Projection (4) Child washer (4a ) Flange part (4b) Skirt part (4c) Through hole (4d) Projection (5) Nut (6) Loosening prevention nut (10) Uncompressed mortar (10a) Uncompressed mortar filling part (11) Level mortar (12) type Frame (G) Installation part (L) (L1) Skirt part length
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JP2012107989A JP5365819B2 (en) | 2012-04-18 | 2012-04-18 | Base plate installation structure and construction method |
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JP2008237080A Division JP2010048408A (en) | 2008-08-19 | 2008-08-19 | Double washer and construction method using double washer |
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JP2012193850A5 JP2012193850A5 (en) | 2013-01-10 |
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JP2015137690A (en) * | 2014-01-21 | 2015-07-30 | 株式会社構造工学研究所 | Concentric filler with polygonal washer |
CN104148875B (en) * | 2014-08-14 | 2017-06-13 | 广西鱼峰集团有限公司 | A kind of deviation correcting device and its manufacture method for articulation bolt hole |
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JPS4821075U (en) * | 1971-07-24 | 1973-03-09 | ||
JPS60258345A (en) * | 1984-06-01 | 1985-12-20 | 旭化成株式会社 | Pillar leg fixing method |
JPH076229B2 (en) * | 1986-06-17 | 1995-01-30 | 日本鋼管株式会社 | Pillar hardware and its fixing device |
JPH0213642A (en) * | 1988-06-28 | 1990-01-18 | Asahi Chem Ind Co Ltd | Fine adjusting device for pillar leg metalware |
JPH0762736A (en) * | 1993-08-26 | 1995-03-07 | Tooatsu:Kk | Fixing method for base plate to pedestal |
JPH0717837U (en) * | 1993-09-07 | 1995-03-31 | 好男 佐々木 | Free-hole base plate |
JPH07292772A (en) * | 1994-04-20 | 1995-11-07 | Sumitomo Forestry Co Ltd | Adjusting metal fitting for anchor bolt mounting hole |
JPH09287138A (en) * | 1996-04-23 | 1997-11-04 | Motoomi Ogata | Transmission tool of shearing force and reinforcing device of column base |
JPH10213123A (en) * | 1997-01-27 | 1998-08-11 | Yasunaga Fukuchi | Filler for fitting hole and fitted plate fitting structure using filler |
JP3587502B2 (en) * | 1998-10-01 | 2004-11-10 | 積水ハウス株式会社 | Shear force support device |
JP2004346509A (en) * | 2003-05-20 | 2004-12-09 | Tokyo Tekko Co Ltd | Washer for anchoring column base |
JP2007057004A (en) * | 2005-08-25 | 2007-03-08 | Tokuo Watanabe | Double washer |
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