JPH02183039A - Structural steel pipe column - Google Patents
Structural steel pipe columnInfo
- Publication number
- JPH02183039A JPH02183039A JP345589A JP345589A JPH02183039A JP H02183039 A JPH02183039 A JP H02183039A JP 345589 A JP345589 A JP 345589A JP 345589 A JP345589 A JP 345589A JP H02183039 A JPH02183039 A JP H02183039A
- Authority
- JP
- Japan
- Prior art keywords
- steel pipe
- diameter
- hole
- concrete
- support plate
- 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
- 229910000746 Structural steel Inorganic materials 0.000 title abstract description 3
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 52
- 239000010959 steel Substances 0.000 claims abstract description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910001208 Crucible steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Rod-Shaped Construction Members (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、構造体のコンクリート桁に接当する支承板を
、鋼管の端部に溶接すると共に、前記支承板のほぼ中央
に貫通孔を設け、前記支承板を前記コンクリート桁に接
当させた状態で、前記貫通孔を通して前記コンクリート
桁と一体的にコンクリート打設可能なコンクリート充填
空間を、前記鋼管の内側に形成してある構造体用鋼管柱
に関し、詳しくは、コンクリート桁に支承板を接当させ
た状態で、鋼管柱の剛性を高め、しかも、支承板に貫通
孔を設けることによって、鋼材量の軽減を果たして経済
性を高められる構造体用鋼管柱に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention involves welding a support plate that comes into contact with a concrete girder of a structure to an end of a steel pipe, and providing a through hole approximately in the center of the support plate. and a concrete filling space is formed inside the steel pipe, in which concrete can be poured integrally with the concrete girder through the through hole with the support plate in contact with the concrete girder. Regarding steel pipe columns, in detail, the rigidity of the steel pipe column is increased by placing the base plate in contact with the concrete girder, and by providing through holes in the base plate, the amount of steel material can be reduced and economical efficiency can be increased. Regarding steel pipe columns for structures.
従来の上記鋼管柱では、支承板に設ける貫通孔の直径を
、鋼管の内径とほぼ同等に設定するか、鋼管の内径より
単に小径に設定することしか提案されていなかった。In the above-mentioned conventional steel pipe columns, it has only been proposed to set the diameter of the through hole provided in the support plate to be approximately equal to the inner diameter of the steel pipe, or to simply set the diameter to be smaller than the inner diameter of the steel pipe.
しかし、貫通孔の直径を、鋼管の内径とほぼ同等に設定
すると、第２図の■に示すように、支承板（４）の内端
縁部近くのコンクリート桁に、大きな応力が集中して、
その部分からコンクリート桁にクラックがはいりやすく
なり、また、鋼管（５）の内径より貫通孔の直径が小さ
すぎると、支承板（４）の重量が増加してしまい経済性
が悪くなる欠点があった。However, if the diameter of the through hole is set to be approximately equal to the inner diameter of the steel pipe, large stress will be concentrated on the concrete girder near the inner edge of the base plate (4), as shown in ■ in Figure 2. ,
Cracks are likely to enter the concrete girder from that part, and if the diameter of the through hole is too small than the inner diameter of the steel pipe (5), the weight of the support plate (4) will increase, making it uneconomical. Ta.
本発明の目的は、支承板の重量をあまり増加させずに、
上からの荷重に対する応力を、コンクリート桁に分散さ
せやすくする点にある。The object of the present invention is to
The purpose is to make it easier to disperse the stress from the load from above onto the concrete girder.
本発明の構造体用鋼管柱の特徴構成は、鋼管の外径をＤ
とすると共に、前記鋼管の肉厚をＴとし、貫通孔の直径
をｄとし、前記鋼管の内径と前記貫通孔の直径との差の
半分をＢとし、支承板の厚みをＨとして、
□ ≦Ｂ≦Ｈの条件内で
ｄ ＝ Ｄ −２Ｔ −２Ｂ を満たすように、前
記貫通孔の直径を設定してあることにあり、その作用効
果は、次の通りである。The characteristic configuration of the steel pipe column for structures of the present invention is that the outer diameter of the steel pipe is D
In addition, the wall thickness of the steel pipe is T, the diameter of the through hole is d, half of the difference between the inner diameter of the steel pipe and the diameter of the through hole is B, and the thickness of the support plate is H, □ ≦ The diameter of the through hole is set so that d = D -2T -2B is satisfied within the condition of B≦H, and its effects are as follows.
つまり、鋼管の内径より貫通孔の直径を単純に小さくす
るのではなく、ＢをほぼＨ／２にすると、第２図の■で
示すように、鋼管（５）の内径と貫通孔の直径とをほぼ
等しくしてＢがＨ／２より小さい第２図の■で示すもの
に較べて、コンクリート桁に作用する応力が鋼管（５）
の直下に集中せずにより径方向に分散し、また、ＢをＨ
とほぼ等しくすると、第２図の■で示すように、第２図
■よりは、更に応力が径方向に分散して、その応力分布
曲線が滑らかになり、更に、ＢをＨより犬にする場合に
は、ＢがＨの時と応力分布がほとんど変わらず、むしろ
、支承板の重量が増加するために、コストが高くなる。In other words, instead of simply making the diameter of the through-hole smaller than the inner diameter of the steel pipe, if B is made approximately H/2, the inner diameter of the steel pipe (5) and the diameter of the through-hole will be Compared to the case shown by ■ in Figure 2 where B is approximately equal and B is smaller than H/2, the stress acting on the concrete girder is lower than that of the steel pipe (5).
B is dispersed in the radial direction without being concentrated directly under H.
As shown by ■ in Figure 2, the stress is further dispersed in the radial direction than ■ in Figure 2, and the stress distribution curve becomes smoother. In this case, the stress distribution is almost the same as when B is H, and on the contrary, the weight of the support plate increases, resulting in higher costs.
従って、支承板の重量を可及的に軽減して経済性を向上
させられながら、コンクリート桁に作用する応力を、鋼
管の径方向に分散させやすく、支承板及びコンクリート
桁の耐久性を向上させて長期使用が行えるようになった
。Therefore, while reducing the weight of the base plate as much as possible and improving economic efficiency, the stress acting on the concrete girder can be easily dispersed in the radial direction of the steel pipe, improving the durability of the base plate and concrete girder. It has become possible to use it for a long time.
次に、本発明の実施例を、図面に基づいて説明する。 Next, embodiments of the present invention will be described based on the drawings.
第４図に示すように、地下鉄駅舎等の地下構造体（１）
の上下コンクリート桁（２）間に介在させて、各階を支
持する構造体用鋼管柱（３）を構成するに、第１図及び
第３図に示すように、上下コンクリート桁（２）、 （
２）に接当する平面視円形の一対の支承板（４）を、夫
々円筒型鋼管（５）の外径よりも大きい外径にして、鋼
管（５）の両端部に各別に溶接すると共に、支承板（４
）のほぼ中央に、主に軽減化のために貫通孔（６）を設
け、支承板（４）をコンクリート桁（２）に接当させた
状態で、貫通孔（６）を通してコンクリート桁（２）と
一体的にコンクリート打設可能なコンクリート充填空間
（Ｓ）を、鋼管（５）の内側に形成してある。As shown in Figure 4, underground structures such as subway station buildings (1)
The structural steel pipe columns (3) that support each floor are interposed between the upper and lower concrete girders (2) of the upper and lower concrete girders (2), as shown in Figures 1 and 3.
A pair of support plates (4) which are circular in plan view and come into contact with the steel pipe (2) are each made to have an outer diameter larger than the outer diameter of the cylindrical steel pipe (5), and are separately welded to both ends of the steel pipe (5). , support plate (4
) is provided with a through hole (6) in the center of the concrete girder (2), and with the support plate (4) in contact with the concrete girder (2), the concrete girder (2 ) A concrete filling space (S) in which concrete can be poured integrally with the steel pipe (5) is formed inside the steel pipe (5).
前記鋼管（５）及び支承板（４）は、鋳鋼製又は、鋼板
製から成り、前記支承板（４）の外周側及び内周側でコ
ンクリート桁（２）とは反対側の角部を、面取りして軽
量化を図っであると共に、又、鋼管（５）との溶接部近
くに、鋼管（５）に対する位置決め用突部（４Ａ）を、
支承板（４）の全周に渡って設けである。The steel pipe (5) and the support plate (4) are made of cast steel or a steel plate, and the corners opposite to the concrete girder (2) on the outer and inner circumference sides of the support plate (4) are made of cast steel or a steel plate. In addition to chamfering to reduce weight, a protrusion (4A) for positioning the steel pipe (5) is provided near the welded part with the steel pipe (5).
It is provided over the entire circumference of the support plate (4).
前記支承板（４）は、第３図の取付孔（７）を通すアン
カーボルト（８）によってコンクリート桁（２）に固定
してあり、その支承板（４）に設けた貫通孔（６）の直
径（ｄ）は、鋼管（５）の外径をＤとすると共に、鋼管
（５）の肉厚をＴとし、貫通孔（６）の直径をｄとし、
鋼管（５）の内径と貫通孔（６）の直径（ｄ）との差の
半分をＢとし、支承板（４）の厚みをＨとして、
□ ≦Ｂ≦Ｈの条件内で
ｄ ＝ Ｄ −２Ｔ −２Ｂ を満たすように、設定
してある。The support plate (4) is fixed to the concrete girder (2) by anchor bolts (8) passing through the mounting holes (7) shown in Fig. 3, and the through holes (6) provided in the support plate (4). The diameter (d) is the outer diameter of the steel pipe (5) as D, the wall thickness of the steel pipe (5) as T, the diameter of the through hole (6) as d,
Let B be half of the difference between the inner diameter of the steel pipe (5) and the diameter (d) of the through hole (6), and let the thickness of the support plate (4) be H, and within the conditions of □ ≦B≦H, d = D − It is set to satisfy 2T - 2B.
前記支承板（４）における貫通孔（６）側の内周縁部（
ｂ）と、鋼管（５）近くの突部（４Ａ）の内周部（ａ）
にわたる傾斜面（Ｆ）は、縦断面視で直線状又は円孤状
に形成して、支承板（４）の軽減化のみならず、コンク
リート（９）打設時に、スムーズにコンクリート（９）
が貫通孔（６）内に流れ込むように形成し、また殊に、
鋼管（５）の上端部に溶接した支承板（４）の貫通孔（
６）側頭斜面（Ｆ）は、コンクリート充填空間（Ｓ）内
にコンクリートを打設した後に、レイタンスやブリージ
ングによって水が上昇したり、コンクリート硬化時に気
泡が発生しても、その水や気泡をスムーズに上方に案内
させるガイド面に形成され、コンクリート充填空間（Ｓ
）内の支承板（４）下部に、水膜層や空隙が形成されな
いようにしてある。The inner peripheral edge of the support plate (4) on the through hole (6) side (
b) and the inner periphery of the protrusion (4A) near the steel pipe (5) (a)
The sloped surface (F) extending over the area is formed in a straight line or circular arc shape when viewed in longitudinal section, not only to reduce the weight of the support plate (4) but also to ensure smooth concrete (9) when pouring the concrete (9).
is formed so that it flows into the through hole (6), and in particular,
The through hole (
6) The temporal slope (F) is designed to remove water and air bubbles even if water rises due to laitance or breathing after concrete is placed in the concrete filling space (S), or air bubbles are generated during concrete hardening. It is formed on a guide surface that guides the concrete upward smoothly, and
) in the lower part of the support plate (4) so that no water film layer or voids are formed.
前記支承板（４）の形状は、内外両側に傾斜面（Ｐ）を
形成する以外に、第５図に示すように、縦断面がほぼ長
方形のものでも良く、また、第６図に示すように、−枚
の板部材（１０）と鋼管（５）周面にわたるリブ（１１
）を周方向に複数設けて、鋼管（５）から受ける垂直荷
重を、リブ（１１）によって板部材（１０）の径方向に
分散させてあってもよい。The shape of the support plate (4) may be one in which the vertical cross section is approximately rectangular as shown in FIG. 5, in addition to forming inclined surfaces (P) on both the inner and outer sides, or a shape having a substantially rectangular longitudinal section as shown in FIG. - - plate members (10) and ribs (11) extending around the circumferential surface of the steel pipe (5).
) may be provided in the circumferential direction, and the vertical load received from the steel pipe (5) may be dispersed in the radial direction of the plate member (10) by the ribs (11).
本発明は、地下鉄駅舎等の地下構造体（１）に限らず、
地上の構造物に適用しても良い。The present invention is not limited to underground structures (1) such as subway station buildings,
It may also be applied to structures on the ground.
尚、特許請求の範囲の項に図面との対照を便利にする為
に符号を記すが、該記入により本発明は添付図面の構造
に限定されるものではない。Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.
図面は本発明に係る構造体用鋼管柱の実施例を示し、第
１図は鋼管柱の縦断面図、第２図は鋼管柱の直下のコン
クリート桁における応力分布を示すグラフ、第３図は支
承板の平面図、第４図は地下構造体の縦断面図、第５図
及び第６図は夫々別実施例を示す要部断面図である。
（１）・・・・・・構造体、（２）・・・・・・コンク
リート桁、（４）・・・・・・支承板、（５）・・・・
・・鋼管、（６）・・・・・・貫通孔。The drawings show an example of the steel pipe column for structures according to the present invention, and FIG. 1 is a longitudinal cross-sectional view of the steel pipe column, FIG. 2 is a graph showing the stress distribution in the concrete girder directly under the steel pipe column, and FIG. FIG. 4 is a plan view of the support plate, FIG. 4 is a vertical sectional view of the underground structure, and FIGS. 5 and 6 are sectional views of main parts showing different embodiments. (1)...Structure, (2)...Concrete girder, (4)...Support plate, (5)...
...Steel pipe, (6)...Through hole.
Claims (1)
（４）を、鋼管（５）の端部に溶接すると共に、前記支
承板（４）のほぼ中央に貫通孔（６）を設け、前記支承
板（４）を前記コンクリート桁（２）に接当させた状態
で、前記貫通孔（６）を通して前記コンクリート桁（２
）と一体的にコンクリート打設可能なコンクリート充填
空間（Ｓ）を、前記鋼管（５）の内側に形成してある構
造体用鋼管柱であって、前記鋼管（５）の外径をＤとす
ると共に、前記鋼管（５）の肉厚をＴとし、前記貫通孔
（６）の直径をｄとし、前記鋼管（５）の内径と前記貫
通孔（６）の直径（ｄ）との差の半分をＢとし、前記支
承板（４）の厚みをＨとして、 Ｈ／２≦Ｂ≦Ｈの条件内で ｄ＝Ｄ−２Ｔ−２Ｂを満たす ように、前記貫通孔（６）の直径（ｄ）を設定してある
構造体用鋼管柱。[Claims] A support plate (4) that comes into contact with the concrete girder (2) of the structure (1) is welded to the end of the steel pipe (5), and a base plate (4) that is in contact with the concrete girder (2) of the structure (1) is welded to the end of the steel pipe (5). A through hole (6) is provided, and with the support plate (4) in contact with the concrete girder (2), the concrete girder (2) is inserted through the through hole (6).
), in which a concrete filling space (S) that can be integrally poured with concrete is formed inside the steel pipe (5), and the outer diameter of the steel pipe (5) is D. At the same time, the wall thickness of the steel pipe (5) is T, the diameter of the through hole (6) is d, and the difference between the inner diameter of the steel pipe (5) and the diameter (d) of the through hole (6) is The diameter of the through hole (6) (d ) steel pipe columns for structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP345589A JPH0676711B2 (en) | 1989-01-09 | 1989-01-09 | Steel pipe column for structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP345589A JPH0676711B2 (en) | 1989-01-09 | 1989-01-09 | Steel pipe column for structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02183039A true JPH02183039A (en) | 1990-07-17 |
| JPH0676711B2 JPH0676711B2 (en) | 1994-09-28 |
Family
ID=11557799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP345589A Expired - Fee Related JPH0676711B2 (en) | 1989-01-09 | 1989-01-09 | Steel pipe column for structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0676711B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102877596A (en) * | 2012-10-17 | 2013-01-16 | 太原理工大学 | Steel pipe and concrete combined anti-collision column and preparation method thereof |
| JP2013199808A (en) * | 2012-03-26 | 2013-10-03 | Kajima Corp | Underground structure |
| CN104405083A (en) * | 2014-11-24 | 2015-03-11 | 南京工业大学 | Corrugated steel web plate-steel pipe concrete flange combined section L-shaped column |
| CN105926853A (en) * | 2016-06-07 | 2016-09-07 | 华南理工大学 | Semi-precast concrete filled steel tubular column with built-in high-strength structural steel and manufacturing method thereof |
-
1989
- 1989-01-09 JP JP345589A patent/JPH0676711B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013199808A (en) * | 2012-03-26 | 2013-10-03 | Kajima Corp | Underground structure |
| CN102877596A (en) * | 2012-10-17 | 2013-01-16 | 太原理工大学 | Steel pipe and concrete combined anti-collision column and preparation method thereof |
| CN104405083A (en) * | 2014-11-24 | 2015-03-11 | 南京工业大学 | Corrugated steel web plate-steel pipe concrete flange combined section L-shaped column |
| CN105926853A (en) * | 2016-06-07 | 2016-09-07 | 华南理工大学 | Semi-precast concrete filled steel tubular column with built-in high-strength structural steel and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0676711B2 (en) | 1994-09-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |