JP2905313B2 - Fixing method of column base on steel column base of building - Google Patents
Fixing method of column base on steel column base of buildingInfo
- Publication number
- JP2905313B2 JP2905313B2 JP16116591A JP16116591A JP2905313B2 JP 2905313 B2 JP2905313 B2 JP 2905313B2 JP 16116591 A JP16116591 A JP 16116591A JP 16116591 A JP16116591 A JP 16116591A JP 2905313 B2 JP2905313 B2 JP 2905313B2
- Authority
- JP
- Japan
- Prior art keywords
- base plate
- base
- grout
- plate
- gap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Foundations (AREA)
Description
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【産業上の利用分野】本発明は、建造物の鉄骨柱脚をコ
ンクリート基礎に固定する方法に係わるもので、鉄骨柱
脚とコンクリート基礎との空隙へグラウトを充填して鉄
骨柱脚を固定する方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for fixing a steel column base of a building to a concrete foundation, and fills a gap between the steel column base and the concrete foundation with grout to fix the steel column base. It is about the method.
【０００２】[0002]
【従来の技術】本発明の対象とする柱脚固定方法におけ
る従来の固定方法を、図５，図６，図７，図８，図９に
示す。従来、建造物のて鉄骨柱脚をコンクリートに固定
する方法として、図６，図７に示すように基礎コンクリ
ート９中に下部を埋設したアンカーボルト６の上部を柱
脚１下部のベースプレート２および座金４のボルト孔８
に挿通し、アンカーボルト６にナット７を、螺合し、し
かるのちに基礎コンクリート９上面とベースプレート２
下面との間隙、ベースプレート２のボルト孔８とアンカ
ーボルト６との間隙および座金４とアンカーボルト６と
の間隙に凹溝１１内に開口するグラウト注入孔５が形成
された座金４（図８，図９参照）の注入孔５から グラ
ウト３を同時に充填して一体的に固定することを特徴と
する柱脚固定方法が知られている。（特開昭６０−２５
８３４５参照） 一方、前記固定方法におけるベースプレートの平面形状
は、通常四角形であるが、ベースプレート隅角部への応
力集中を防ぐために柱脚固定用ベースプレートとして、
四角形ベースプレートの各隅部を斜断した形状のベース
プレート２の提案がなされている。2. Description of the Related Art FIGS. 5, 6, 7, 8, and 9 show a conventional fixing method in a column base fixing method to which the present invention is applied. 2. Description of the Related Art Conventionally, as a method of fixing a steel column base of a building to concrete, as shown in FIGS. 6 and 7, an upper part of an anchor bolt 6 having a lower part buried in a foundation concrete 9 is provided with a base plate 2 and a washer under a column base 1. 4 bolt holes 8
And the nut 7 is screwed into the anchor bolt 6, and then the upper surface of the base concrete 9 and the base plate 2
A washer 4 in which a grout injection hole 5 opening into a concave groove 11 is formed in the gap between the lower surface, the gap between the bolt hole 8 of the base plate 2 and the anchor bolt 6, and the gap between the washer 4 and the anchor bolt 6 (FIG. 8, FIG. A column base fixing method is known in which grout 3 is simultaneously filled from an injection hole 5 in FIG. 9 and fixed integrally. (JP-A-60-25
On the other hand, the planar shape of the base plate in the fixing method is usually a quadrangle, but in order to prevent stress concentration on the corners of the base plate, the base plate is fixed as a column base fixing base plate.
There has been proposed a base plate 2 having a shape in which each corner of a square base plate is beveled.
【０００３】前記固定方法においては、グラウト３を充
填する前に、基礎コンクリート９上面とベースプレート
２下面との間隙の側面からグラウト３が漏れるのを防止
し、且つベースプレート２下面に平面形状がベースプレ
ートと同形状のモルタルを形成させるために何等かの堰
材が必要となる。前記固定方法において、ベースプレー
トが正四角形の場合は、図６に示すように、４枚の堰板
１３をベースプレート各側面に接しせしめて基礎コンク
リート９上面に設置し、ベースプレートの隅部の堰板１
３が接する部分を釘などで固定し、また、堰板１３下面
と基礎コンクリート９上面との間に隙間が有る場合に
は、さらにグラウト洩れだし防止のためモルタルなどの
シール材で目止めを行う。In the fixing method, before the grout 3 is filled, the grout 3 is prevented from leaking from the side surface of the gap between the upper surface of the foundation concrete 9 and the lower surface of the base plate 2, and the lower surface of the base plate 2 has a flat shape. In order to form a mortar of the same shape, some dam is required. In the above fixing method, when the base plate is a square, as shown in FIG. 6, four dam plates 13 are placed on the upper surface of the foundation concrete 9 by contacting the respective side surfaces of the base plate, and the dam plates 1 at the corners of the base plate are arranged.
3 is fixed with a nail or the like, and if there is a gap between the lower surface of the weir plate 13 and the upper surface of the foundation concrete 9, it is further sealed with a sealing material such as mortar to prevent the grout from leaking out. .
【０００４】一方、ベースプレートの平面形状が四角形
の隅部を斜断した形状の場合は、辺の数に相当する堰板
１３を用いてベースプレート２周囲を囲っていた。（図
５参照）[0004] On the other hand, when the planar shape of the base plate is a shape in which a corner of a square is obliquely cut, the periphery of the base plate 2 is surrounded by dam plates 13 corresponding to the number of sides. (See Fig. 5)
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、図５に
示すような、ベースプレート２の辺の数に相当する堰板
１３でベースプレート２周囲を囲う方法では、堰板本数
および各堰板の接合箇所数が従来の四角形ベースプレー
トの場合よりも多く、作業性が著しく低下する。また、
ベースプレート２の隅角部の角度が９０度でない部分に
おいては、各堰板１３の接合部に堰板１３の厚みの分堰
板１３内面とベースプレート２側面との間に隙間１８が
生ずることになり、これにより、ベースプレート２下面
のモルタルがベースプレート２と同一の形状にならない
だけでなく、隙間１８からグラウト３が洩れだし、グラ
ウト３のロスとなり、また、洩れ出しがグラウト３の平
面的な広がりよりも卓越するとベースプレー２下面全面
への完全充填に至らない恐れもある。However, in the method of surrounding the base plate 2 with a weir plate 13 corresponding to the number of sides of the base plate 2 as shown in FIG. 5, the number of weir plates and the number of joints of each weir plate are increased. Is larger than in the case of the conventional square base plate, and the workability is significantly reduced. Also,
In a portion where the angle of the corner portion of the base plate 2 is not 90 degrees, a gap 18 is formed between the inner surface of the weir plate 13 and the side surface of the base plate 2 at the joint of the respective weir plates 13 by the thickness of the weir plate 13. Thus, not only does the mortar on the lower surface of the base plate 2 not have the same shape as the base plate 2, but also the grout 3 leaks out of the gap 18, resulting in loss of the grout 3. If it is also excellent, there is a possibility that the entire lower surface of the base play 2 may not be completely filled.
【０００６】また、上記堰板１３の厚みによって発生す
る隙間１８を防止するために、堰板１３の端部を斜断す
ることは、作業性を著しく低下させることとなる。Further, if the end of the weir plate 13 is beveled in order to prevent the gap 18 caused by the thickness of the weir plate 13, the workability is remarkably reduced.
【０００７】[0007]
【課題を解決するための手段】前記した建造物の鉄骨柱
脚を基礎コンクリートに固定する方法で、ベースプレー
トの平面形状に四角形の隅部を斜断した形状のベースプ
レートを用いる場合において、ベースプレート周囲を囲
う堰板はベースプレートの長尺辺４辺に接しせしめて平
面形状四角形とし、設置する。さらに、ベースプレート
の各斜断部側面と堰板内面との隙間に当該隙間の斜断形
状と同一あるいは若干大きい隙間調整材を差し込んだ後
に、グラウト注入孔よりグラウトを充填することを特徴
とするもので、これにより、ベースプレート斜断部から
のグラウトの洩れだしを防止し、且つ、グラウト充填施
工前のグラウト洩れだし防止作業およびグラウト充填作
業の施工性の向上が図ることができるものである。According to the above-mentioned method of fixing a steel column base of a building to foundation concrete, when a base plate having a rectangular shape with oblique corners is used as the base shape of the base plate, the periphery of the base plate is removed. The surrounding weir plate is placed in contact with the four long sides of the base plate to form a planar quadrilateral and is installed. Furthermore, after inserting a gap adjusting material which is the same as or slightly larger than the oblique shape of the gap into the gap between the side face of each oblique section of the base plate and the inner face of the weir plate, grout is filled from the grout injection hole. Thus, it is possible to prevent the grout from leaking out from the oblique section of the base plate, and to improve the grout leakage prevention work before grout filling work and the workability of the grout filling work.
【０００８】本発明において、隙間調整材としては樹脂
成形または樹脂発泡体として、ポリエチレンやポリスチ
レンを用いることができる。また、隙間調整材は、ベー
スプレート斜断部へのはめ込みによって固定するほかに
釘などで堰板に固定するか、または堰板をベースプレー
ト周囲に設置する前に堰板４片それぞれにあるいは２片
に予め隙間調整材を装着しておくこともできる。In the present invention, polyethylene or polystyrene can be used as a resin material or a resin foam as a gap adjusting material. In addition, the gap adjusting material is fixed to the weir plate with nails or the like in addition to being fixed by being inserted into the oblique section of the base plate, or four or two weir plates before the weir plate is installed around the base plate. It is also possible to attach a gap adjusting material in advance.
【０００９】[0009]
【実施例】次に、図示した実施例により説明する。Next, the present invention will be described with reference to the illustrated embodiment.
【００１０】[0010]
【実施例１】図１，図２，図３は、実施例１の柱脚固定
方法を示すものである。基礎コンクリート９の上面の所
要の位置に高さ調整材としてレベルモルタル１０を設置
し、その上に、平面形状を柱材の横断面に相似する四角
形の各隅部を斜断した形状としたベースプレート２を設
置するとともに、基礎コンクリート９中に下部を埋設し
たアンカーボルト６の上部を柱脚１下部のベースプレー
ト２および座金４のボルト孔８に挿通し、アンカーボル
ト６にナット７を螺合して緊締し、グラウト３の充填の
前に、当該ベースプレート２の長尺面４辺に接するよう
に堰板１３，４片を基礎コンクリート９上面に設置し、
堰板１３相互の接する部分を釘で固定し、堰板１３下面
と基礎コンクリート９上面との隙間にはシール材１０と
してモルタルを設置する。さらに、ベースプレート２の
各斜断面１２と堰板１３内面との平面形状三角形の隙間
１７に、隙間調整材１６として平面形状が堰板隅部側の
角を更に斜断した形状の発泡ポリエチレン成形材をはめ
込む。しかるのちに基礎コンクリート９上面とベースプ
レート２下面との間隙、ベースプレート２のボルト孔８
とアンカーボルト６との間隙および座金４とアンカーボ
ルト６との間隙にグラウト３を同時に充填して一体的に
固定する。First Embodiment FIGS. 1, 2 and 3 show a method of fixing a column base according to a first embodiment. A base plate in which a level mortar 10 is installed as a height adjusting material at a required position on the upper surface of the base concrete 9 and a planar shape is formed on each of the corners of a square similar to the cross section of the column material. 2 and the upper part of the anchor bolt 6 buried in the base concrete 9 is inserted into the base plate 2 under the column base 1 and the bolt hole 8 of the washer 4, and the nut 7 is screwed into the anchor bolt 6. Before tightening and filling the grout 3, the weir plates 13 and 4 pieces are set on the upper surface of the foundation concrete 9 so as to be in contact with the four long sides of the base plate 2,
A portion where the weir plates 13 contact each other is fixed with nails, and a mortar is installed as a sealing material 10 in a gap between the lower surface of the weir plate 13 and the upper surface of the foundation concrete 9. Further, in a gap 17 of a triangular shape between each inclined section 12 of the base plate 2 and the inner surface of the weir plate 13, as a gap adjusting material 16, a foamed polyethylene molded material having a planar shape in which the corner on the corner side of the weir plate is further obliquely cut. Inset. Thereafter, the gap between the upper surface of the foundation concrete 9 and the lower surface of the base plate 2, the bolt holes 8 in the base plate 2
The grout 3 is simultaneously filled into the gap between the anchor bolt 6 and the gap between the washer 4 and the anchor bolt 6, and integrally fixed.
【００１１】前記隙間調整材としてベースプレート２の
各斜断面１２と堰板１３内面との平面形状三角形の隙間
と同一または若干大きい隙間調整材１５を使用すること
もできる。（図４参照）また、発泡ポリエチレン成形材
の他に発泡ポリスチレン成形材を使用することも出来
る。又前記斜断面は直線的に限らず曲線的であってもよ
い。As the gap adjusting member, a gap adjusting member 15 which is the same as or slightly larger than a triangular gap between each inclined surface 12 of the base plate 2 and the inner surface of the weir plate 13 can be used. (See FIG. 4) In addition to the foamed polyethylene molding material, a foamed polystyrene molding material can be used. Further, the oblique section may be not only linear but also curved.
【００１２】[0012]
【発明の効果】１．本発明のグラウト充填による柱脚固
定方法とすると、ベースプレートの斜断部側面と堰板内
面との隙間にはめ込む隙間調整材が、流動性の高いグラ
ウトの洩れだし防止となるため、ベースプレート側面の
隙間からの部分的なグラウト洩れだしの卓越を防止する
ことが出来る。これにより、グラウト充填完了までのベ
ースプレート側面からの洩れだしを防止し、グラウトの
ロスを最小限にとどめることができる。 ２．本発明のグラウト充填による柱脚固定方法とする
と、ベースプレート平面形状と同一のベースプレート下
面モルタルを形成することが出来る。 ３．本発明のグラウト充填による柱脚固定方法とする
と、グラウト充填作業に先立つベースプレート周囲のグ
ラウト洩れだし防止作業の作業性が大幅に向上する。ま
た、グラウト洩れだし防止の信頼性が高いため、グラウ
ト充填作業の手戻りや洩れだしに対する応急処置が不要
で、充填作業の作業性が向上する。Advantages of the Invention According to the method of fixing the column base by grout filling of the present invention, the gap adjusting material that fits into the gap between the side surface of the oblique section of the base plate and the inner surface of the weir plate prevents leakage of highly fluid grout. The excellence of partial grout leakage from the car can be prevented. Thus, leakage from the side surface of the base plate until grout filling is completed can be prevented, and loss of grout can be minimized. 2. According to the column base fixing method by grout filling of the present invention, a base plate lower surface mortar having the same base plate planar shape can be formed. 3. According to the column base fixing method by grout filling of the present invention, workability of grout leakage prevention work around the base plate prior to grout filling work is greatly improved. Further, since the reliability of grout leakage prevention is high, rework of grout filling work and emergency treatment for leakage are unnecessary, and workability of filling work is improved.
【図１】本発明の実施例１を説明する平面図FIG. 1 is a plan view illustrating a first embodiment of the present invention.
【図２】本発明の実施例１を説明する断面図FIG. 2 is a sectional view illustrating a first embodiment of the present invention.
【図３】本発明に用いる隙間調整材斜視図FIG. 3 is a perspective view of a gap adjusting material used in the present invention.
【図４】従来のグラウト充填による柱脚固定方法を説明
する平面図FIG. 4 is a plan view illustrating a conventional method of fixing a column base by grout filling.
【図５】従来のグラウト充填による柱脚固定方法を説明
する平面図FIG. 5 is a plan view illustrating a conventional method of fixing a column pedestal by grout filling.
【図６】従来のグラウト充填による柱脚固定方法を説明
する平面図FIG. 6 is a plan view illustrating a conventional method of fixing a column base by grout filling.
【図７】従来のグラウト充填による柱脚固定方法を説明
する断面図FIG. 7 is a sectional view for explaining a conventional method of fixing a column base by grout filling.
【図８】座金の表側を説明する斜視図FIG. 8 is a perspective view illustrating a front side of a washer.
【図９】座金の裏側を説明する斜視図FIG. 9 is a perspective view illustrating the back side of the washer.
１ 柱脚 ２ ベースプレート ３ グラウト ４ 座金 ５ 注入孔 ６ アンカーボルト ７ ナット ８ ボルト穴 ９ 基礎コンクリート １０ レベルモルタル １１ 凹溝 １２ ベースプレート斜断部 １３ 堰板 １４ シール材 １５，１６ 隙間調整材 １７ 平面形状三角形の隙間 １８ 隙間 DESCRIPTION OF SYMBOLS 1 Pillar 2 Base plate 3 Grout 4 Washer 5 Injection hole 6 Anchor bolt 7 Nut 8 Bolt hole 9 Foundation concrete 10 Level mortar 11 Groove 12 Base plate slanting part 13 Weir plate 14 Sealing material 15, 16 Gap adjusting material 17 Planar shape triangle Gap 18 gap
Claims (1)
ンカーボルトの上部を柱脚下部のベースプレートおよび
座金のボルト孔に挿通し、前記アンカーボルトにナット
を螺合して設置後、基礎上面とベースプレート下面との
間隙に、グラウトを充填して柱脚を一体的に固定する柱
脚固定方法において、前記ベースプレートの平面形状を
四角形の隅部を斜断した形状とすると共に基礎コンクリ
ート上面にベースプレート各側面に接するように四角形
堰板を設置し、堰板と接しないベースプレート斜断面と
堰板内面との間隙調整材をはめ込み、しかるのちに、あ
らかじめ設けたグラウト注入孔からグラウトを充填する
ことを特徴とする建造物の鉄骨柱脚における柱脚固定方
法。[Claim 1] The upper portion of the foundation concrete anchor bolt embedded lower in inserted into the bolt hole of the base plate and washer pedestal bottom, after installation screwed a nut on the anchor bolt, foundation top and base Supureto In a column base fixing method for fixing a column base integrally by filling grout into a gap with a lower surface, the planar shape of the base plate is a shape obtained by obliquely cutting a corner of a square, and each side of the base plate is formed on an upper surface of a foundation concrete. A square weir plate is installed so as to be in contact with the weir plate, a gap adjusting material between the base plate oblique section and the inner surface of the weir plate not in contact with the weir plate is fitted, and thereafter, grout is filled from a grout injection hole provided in advance. Method for fixing column bases on steel column bases of buildings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16116591A JP2905313B2 (en) | 1991-07-02 | 1991-07-02 | Fixing method of column base on steel column base of building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16116591A JP2905313B2 (en) | 1991-07-02 | 1991-07-02 | Fixing method of column base on steel column base of building |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH059942A JPH059942A (en) | 1993-01-19 |
| JP2905313B2 true JP2905313B2 (en) | 1999-06-14 |
Family
ID=15729837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16116591A Expired - Fee Related JP2905313B2 (en) | 1991-07-02 | 1991-07-02 | Fixing method of column base on steel column base of building |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2905313B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3233259B2 (en) * | 1996-04-26 | 2001-11-26 | 株式会社アルテス | Steel column base using U-shaped anchor bolt |
| JP4521791B2 (en) * | 1999-04-02 | 2010-08-11 | 岡部株式会社 | Grout construction method for exposed column base |
| JP4491206B2 (en) * | 2003-08-15 | 2010-06-30 | 岡部株式会社 | Washer with grout injection hole |
-
1991
- 1991-07-02 JP JP16116591A patent/JP2905313B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH059942A (en) | 1993-01-19 |
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