JPS63223241A - Method for fixing reinforcing bar pillar - Google Patents
Method for fixing reinforcing bar pillarInfo
- Publication number
- JPS63223241A JPS63223241A JP5408287A JP5408287A JPS63223241A JP S63223241 A JPS63223241 A JP S63223241A JP 5408287 A JP5408287 A JP 5408287A JP 5408287 A JP5408287 A JP 5408287A JP S63223241 A JPS63223241 A JP S63223241A
- Authority
- JP
- Japan
- Prior art keywords
- column
- steel
- base
- concrete
- fixing
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 8
- 230000003014 reinforcing effect Effects 0.000 title 1
- 229910000831 Steel Inorganic materials 0.000 claims description 25
- 239000010959 steel Substances 0.000 claims description 25
- 239000000463 material Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
Landscapes
- Joining Of Building Structures In Genera (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、鉄骨建物の鉄骨柱を地中梁に固定する方法に
関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for fixing steel columns of a steel frame building to underground beams.
［従来技術とその問題点］
従来、鉄骨柱を地中梁に固定する方法としては、第５図
〜８図に示すように、鉄骨柱１の柱脚１ａを地中梁２に
あけた穴２ａに挿入し、この穴２ａ内にグラウト材３を
注入固化して固定していた。[Prior art and its problems] Conventionally, as a method for fixing a steel column to an underground beam, as shown in Figs. 2a, and the grout material 3 was injected into the hole 2a and solidified to be fixed.
そして、上記柱脚１ａの周囲にスタッドボルト４やシャ
ーコネクター５を設けて、コンクリートと柱脚１ａの乳
分かれを防止していたが、支圧耐力の向上にはあまり寄
与していないのが実情であった。Stud bolts 4 and shear connectors 5 were installed around the column pedestal 1a to prevent separation between the concrete and the column pedestal 1a, but the reality is that this does not contribute much to improving the bearing capacity. Met.
［発明の目的］
本発明は、上記従来の問題点を解決するためになされた
もので、その目的とするところは、鉄骨柱の柱脚周囲の
地中梁のコンクリートの支圧耐力を向上せしめ、鉄骨柱
の柱脚の埋込長さを短くすることが出来、基礎７−チン
グの厚みを小さくし、工期を短縮することが出来る鉄骨
柱の柱脚固定方法を提供することにある。[Object of the Invention] The present invention has been made to solve the above conventional problems, and its purpose is to improve the bearing capacity of concrete of underground beams around the bases of steel columns. To provide a method for fixing a column base of a steel frame column, which can shorten the embedded length of the column base of the steel frame column, reduce the thickness of the foundation 7-ching, and shorten the construction period.
［発明の構成１
本発明の鉄骨柱の固定方法は、鉄骨柱の柱脚周囲の地中
梁コンクリートに緊張材を垂直または水平方向に配して
プレストレスを与えるようにしたことを特徴とするもの
である。[Structure 1 of the Invention The method for fixing a steel frame column of the present invention is characterized in that tendons are arranged vertically or horizontally in the underground beam concrete around the base of the steel frame column to apply prestress. It is something.
［実施例１
以下、本発明の一実施例について図面を参照しながら説
明する。[Embodiment 1] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
第１図におよＶ第２図において、１は鉄骨柱であって、
本実施例では角形鋼管柱となっているが、丸形鋼管柱や
Ｈ形鋼、■形鋼等の形鋼柱、或いはプレート柱であって
も良い、上記鉄骨柱１の柱脚１ａの周囲には、スタッド
ボルト４が植設してあって、コンクリートへの付着力を
向上せしめている。In Fig. 1 and Fig. 2, 1 is a steel column,
In this embodiment, the column is a square steel pipe column, but it may also be a round steel tube column, a shaped steel column such as H-shaped steel, ■-shaped steel, or a plate column. A stud bolt 4 is installed in the hole to improve adhesion to concrete.
６はベースプレートである。6 is a base plate.
２は地中梁であって、その接合部の中央に、上記鉄骨柱
１の柱脚１ａが埋込まれている。2 is an underground beam, and the column base 1a of the steel column 1 is embedded in the center of the joint.
７は基ＷＲフーチングである。7 is the base WR footing.
８はＰＣ鋼棒や鉄骨棒等の緊張材であって、上記柱脚１
ａの周囲の地中梁２および基ｌ！フーチング７に垂直方
向に緊張されていて、地中梁２のコンクリートにプレス
トレスを与えている。8 is a tension material such as a PC steel rod or a steel rod, which is attached to the column base 1 above.
Underground beams 2 and base l around a! The footing 7 is tensioned vertically, giving prestress to the concrete of the underground beam 2.
９は建方用アンカーボルトである。9 is an anchor bolt for erection.
第３図および第４図は、本発明の別の実施例を示すもの
で、上記柱脚１ａの周囲の地中梁２に水平方向に緊張材
８を緊張して、地中梁２のコンクリートにプレストレス
を与えている。3 and 4 show another embodiment of the present invention, in which tension members 8 are tensioned horizontally on the underground beam 2 around the column base 1a, and the concrete of the underground beam 2 is is giving prestress to.
尚、本実施例では柱脚１ａの周囲にシャーコネクター５
を取付けているが、これに代えてスタッドボルト４を設
けてもよい。同様に、前記第１〜２図の実施例のスタッ
ドボルト４に代えてシャーコネクター５を設けてもよい
。In this embodiment, a shear connector 5 is installed around the column base 1a.
is attached, but a stud bolt 4 may be provided instead. Similarly, a shear connector 5 may be provided in place of the stud bolt 4 in the embodiment shown in FIGS. 1 and 2.
＃ｆＩＳ図（Ａ）（Ｂ）に示すように、曲げモーメント
とせん断力を受ける鉄骨柱１の埋込部である脚部１ａの
耐力機構をコンクリ−）Ｃの付着力や摩擦力を無視して
支圧反力のみで支持されていると仮定すると、曲げモー
メントと水平力および支圧力に関するつり合い式は、
Ｂｘ６（ｄ ｘ） Ｑ（１＋ｄ／２）＝ＯＢ（ｄ−
ｘ）６−Ｂｘ６−Ｑ＝０
６＝ｂＸＱ／Ｂｄ
ｂで置き換えれば
Ｑ＋＝（ｂ＋１）Ｑ／２
Ｑ２＝（ｂ＋１）Ｑ／２ であり、６による支圧
耐力度を上げれば良いことが確認できた。As shown in #fIS diagrams (A) and (B), the load-bearing mechanism of the leg 1a, which is the embedded part of the steel column 1 that receives bending moment and shear force, is calculated by ignoring the adhesion force and frictional force of concrete (C). Assuming that it is supported only by the bearing pressure reaction force, the balance equation for the bending moment, horizontal force, and bearing force is: Bx6 (d x) Q (1 + d/2) = OB (d-
x) 6-Bx6-Q=0 6=bXQ/Bd If b is replaced, Q+=(b+1)Q/2 Q2=(b+1)Q/2, confirming that it is sufficient to increase the bearing capacity due to 6. did it.
［発明の効果Ｊ （１）柱脚ピン構造よりも鋼材量が少なくて済む。[Effects of the invention J (1) Less steel is required than the column base pin structure.
（２）外力による架橋の変形が少なくなる。(2) Deformation of the bridge due to external force is reduced.
（３）根巻きがないので、仕上材のおさまりが良い。(3) Since there is no root wrapping, the finish material stays in place well.
（４）柱脚埋込み長さが短くて済むので、鋼材量が減る
。(4) The amount of steel material is reduced because the length of embedding the column base can be shortened.
（５）基［フーチングの丈が小さくなる。(5) Base [The length of the footing becomes smaller.
（６）工期が短縮できる。(6) Construction period can be shortened.
第１図は本発明の一実施例を示す平面図、第２図はその
側面図、第３図は別の実施例を示す平面図、ｆｊＩＪ４
図はその側面図、第５〜８図は従来の説明図、第９図（
Ａ）（Ｂ）は命げモーメントと水平力および支圧力に関
する説明図である。
１・・・鉄骨柱、１ａ・・・柱脚、２・・・地中梁、２
ａ・・・穴、３・・・グフウト材、４・・・スタッドボ
ルト、５・・・シャーコネクター、６・・・ベースプレ
ート、７・・・Ｊｆ［フーチング、８・・・緊張材、９
・・・建方用アンカーボルト、Ｃ・・・コンクリート６Fig. 1 is a plan view showing one embodiment of the present invention, Fig. 2 is a side view thereof, and Fig. 3 is a plan view showing another embodiment.
The figure is a side view, Figures 5 to 8 are conventional explanatory diagrams, and Figure 9 (
A) and (B) are explanatory diagrams regarding the force moment, horizontal force, and bearing force. 1... Steel column, 1a... Column base, 2... Underground beam, 2
a... Hole, 3... Guft material, 4... Stud bolt, 5... Shear connector, 6... Base plate, 7... Jf [footing, 8... Tensile material, 9
...Anchor bolt for construction, C...Concrete 6
Claims (3)
トレスを与えるようにしたことを特徴とする鉄骨柱の固
定方法。(1) A method for fixing a steel column, characterized by applying prestress to the underground beam concrete around the base of the steel column.
することを特徴とする前記特許請求の範囲第１項に記載
の鉄骨柱の固定方法。(2) The method for fixing a steel column according to claim 1, characterized in that tension members are arranged vertically on the concrete underground beam.
することを特徴とする前記特許請求の範囲第１項に記載
の鉄骨柱の固定方法。(3) The method for fixing a steel column according to claim 1, characterized in that tension members are arranged horizontally in the concrete underground beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62054082A JPH0784761B2 (en) | 1987-03-11 | 1987-03-11 | How to fix steel columns |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62054082A JPH0784761B2 (en) | 1987-03-11 | 1987-03-11 | How to fix steel columns |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63223241A true JPS63223241A (en) | 1988-09-16 |
| JPH0784761B2 JPH0784761B2 (en) | 1995-09-13 |
Family
ID=12960693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62054082A Expired - Fee Related JPH0784761B2 (en) | 1987-03-11 | 1987-03-11 | How to fix steel columns |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0784761B2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS595734A (en) * | 1982-06-30 | 1984-01-12 | Matsushita Electric Works Ltd | Input circuit with protecting circuit |
| JPS6183740A (en) * | 1984-10-02 | 1986-04-28 | 株式会社竹中工務店 | Fixing of iron pillar leg |
-
1987
- 1987-03-11 JP JP62054082A patent/JPH0784761B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS595734A (en) * | 1982-06-30 | 1984-01-12 | Matsushita Electric Works Ltd | Input circuit with protecting circuit |
| JPS6183740A (en) * | 1984-10-02 | 1986-04-28 | 株式会社竹中工務店 | Fixing of iron pillar leg |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0784761B2 (en) | 1995-09-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |