JPS6335946A - Formation of piercing hole in reinforcing bar beam web - Google Patents
Formation of piercing hole in reinforcing bar beam webInfo
- Publication number
- JPS6335946A JPS6335946A JP18112786A JP18112786A JPS6335946A JP S6335946 A JPS6335946 A JP S6335946A JP 18112786 A JP18112786 A JP 18112786A JP 18112786 A JP18112786 A JP 18112786A JP S6335946 A JPS6335946 A JP S6335946A
- Authority
- JP
- Japan
- Prior art keywords
- web
- hole
- formation
- steel beam
- reinforcing bar
- 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.)
- Pending
Links
- 230000003014 reinforcing effect Effects 0.000 title description 9
- 230000015572 biosynthetic process Effects 0.000 title 1
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 238000005452 bending Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 8
- 238000003466 welding Methods 0.000 description 8
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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) [Abstract] 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、鉄骨梁ウェブにおける貫通孔の形成方法に関
するものである。DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a method for forming through holes in a steel beam web.
「従来の技術」
従来、鉄骨梁のウェブ面に、各種配管の貫通孔を穿没し
た場合、そのＭ通孔周りにおけるウェブを補強する必要
があり、その補強手段としては、例えば第５図乃至第７
図に示す如く、鉄骨梁１のウェブ１ａ面における貫通孔
２よりも若干径大な中央孔３ａを有する円形あるいは正
方形の補強プレート３を、その中央孔３ａを貫通孔２に
合わせて、ウェブｌａ面に当接すると共に、補強プレー
ト３の外周縁とウェブ１ａ面および補強プレート３にお
ける中央孔３ａの周縁とウェブ１ａにおける貫通孔２の
周縁部とを溶接していた。``Prior Art'' Conventionally, when through-holes for various types of piping are drilled into the web surface of a steel beam, it is necessary to reinforce the web around the M-through holes. 7th
As shown in the figure, a circular or square reinforcing plate 3 having a center hole 3a slightly larger in diameter than the through hole 2 on the web 1a surface of the steel beam 1 is aligned with the through hole 2, and the web la At the same time, the outer peripheral edge of the reinforcing plate 3 was welded to the web 1a surface, and the peripheral edge of the central hole 3a in the reinforcing plate 3 and the peripheral edge of the through hole 2 in the web 1a were welded.
また他の補強手段として、例えば第８図、第９図に示す
如く、鉄骨梁１のウェブ１ａにおける貫通孔２を中央に
して、ウェブｌａ面にハの字形にラチス補強プレート４
を溶接していた。As another reinforcing means, for example, as shown in FIGS. 8 and 9, a lattice reinforcing plate 4 is placed in a V-shape on the web la surface of the steel beam 1, with the through hole 2 in the web la in the center.
was welding.
「発明が解決しようとする問題点」
ところで、鉄骨梁のウェブにおける従来の１通孔にあっ
ては、その切り抜きプレートがスクラップになってしま
うこと、貫通孔開りにおけるウェブ面に、各種の補強プ
レートを溶接により設けなければならないことから、鋼
材使用量の増加と、加工量の増加とを来たし、コストア
ンプになり、壜めて不経済であった。``Problems to be Solved by the Invention'' By the way, in the case of conventional single-hole holes in the web of steel beams, the cutout plate becomes scrap, and various reinforcements are applied to the web surface of the through-hole. Since the plates must be installed by welding, this results in an increase in the amount of steel used and an increase in the amount of processing, which increases the cost and is extremely uneconomical.
「問題点を解決するための手段」
本発明は、かくの如き従来の問題点を解決すべくなした
ものであって、その要旨とするところは、鉄骨梁のウェ
ブ面に、所要径の仮想貫通孔が内接する正多角形を痛き
、この正多角形の各対角線上に沿ってスリットを設け、
この各スリットにより形成された各三角形状プレートを
、正多角形の各一辺をそれぞれ折曲線としてウェブ面へ
折曲当接し、この折曲当接した各三角形状プレートの斜
辺縁とウェブ面とを溶接することを特徴とする鉄骨梁ウ
ェブにおける貫通孔の形成方法にある。"Means for Solving the Problems" The present invention has been made to solve the problems of the prior art as described above, and its gist is to provide a web surface of a steel beam with an imaginary diameter of a required diameter. A regular polygon inscribed with the through hole is cut, and slits are provided along each diagonal of this regular polygon.
Each triangular plate formed by each slit is bent and brought into contact with the web surface using each side of the regular polygon as a folding line, and the hypotenuse edge of each triangular plate that is bent and brought into contact with the web surface is A method for forming a through hole in a steel beam web, the method comprising welding.
「実施例」
第１図乃至第３図は、本発明方法の第１実施例を示すも
のであて、先ず第１図に示す如く、鉄骨梁１のウェブ１
ａ面に、所要径の仮想貫通孔５が内接する例えば正八角
形６を描き、この正八角形６の各対角線上に沿ってスリ
ット６ａを設け、この各スリット６ａにより形成された
各三角形状プレート６ｂを、第２図、第３図に示す如く
、正八角形６の各一辺をそれぞれ折曲線としてウェブ１
ａ面へ折曲当接し、この折曲当接した各三角形状プレー
ト６ｂの斜辺縁とウェブ１ａ面とを溶接して、正八角形
の貫通孔７を形成するのである。"Embodiment" FIGS. 1 to 3 show a first embodiment of the method of the present invention. First, as shown in FIG.
For example, a regular octagon 6 in which a virtual through-hole 5 of a required diameter is inscribed is drawn on the a side, a slit 6a is provided along each diagonal of this regular octagon 6, and each triangular plate 6b is formed by each slit 6a. As shown in FIGS. 2 and 3, each side of the regular octagon 6 is used as a folding line to form the web 1.
A regular octagonal through hole 7 is formed by bending and abutting the web 1a on the a-plane, and welding the hypotenuse edge of each triangular plate 6b that has been bent and abutting against the web 1a side.
なお、前記折曲当接した各三角形状プレート６ｂの斜辺
縁とウェブ１ａ面とを溶接する際、各三角形状プレー）
６ｂの隣接する斜辺縁基部交点を補強溶接（肉盛溶接）
して、応力集中による破壊を防ぐようにする。In addition, when welding the hypotenuse edge of each triangular plate 6b that is bent and abutted to the web 1a surface, each triangular plate)
Reinforcement welding (overlay welding) of the intersection of adjacent hypotenuse edge bases of 6b
to prevent damage due to stress concentration.
第４図は、本発明方法の第２実施例を示すものであって
、鉄骨梁ｌのウェブ１ａ面に描いた前記正八角形６の各
対角線および正八角形６の各一辺に沿って各三角形状プ
レー）６ｂを切り離し、切り離した各三角形状プレート
６ｂを、正八角形の貫通孔７の外周部の各一辺に沿う如
くウェブ１ａ面に当接して溶接する。FIG. 4 shows a second embodiment of the method of the present invention, in which each triangular shape is The triangular plates 6b are cut out, and each triangular plate 6b is welded in contact with the surface of the web 1a along each side of the outer periphery of the regular octagonal through hole 7.
この場合も、各三角形状プレー）６ｂの隣接する斜辺縁
基部交点を補強溶接（肉盛ｆ４接）する。In this case as well, the intersection points of the adjacent oblique edge bases of each triangular play (6b) are reinforced by welding (overlay f4 contact).
「発明の効果」
以上述べた如く、本発明の鉄骨梁ウェブにおける貫通孔
の形成方法によれば、従来の貫通孔の如く、その切り抜
きプレートをスクラップにすることなく、貫通孔周りの
補強プレートに転用できるので、従来に比較して補強プ
レートに要する材料費および加工費等を節減することが
でき、コストの低減に寄与できる。"Effects of the Invention" As described above, according to the method for forming through holes in a steel beam web of the present invention, unlike conventional through holes, the cutout plates are not scrapped, and the reinforcing plates around the through holes can be formed. Since it can be used for other purposes, the material cost, processing cost, etc. required for the reinforcing plate can be reduced compared to the conventional method, contributing to cost reduction.
第１図、第２図は本発明方法の第１実施例の工程を示す
説明図、第３図は、第２図のＡ−Ａ線における断面図、
第４図は本発明方法の第２実施例を示す正面図、第５図
乃至第９図は貫通孔周りにおけるウェブの補強手段の各
従来例を示す説明図である。
１・・・鉄骨梁、 ｌａ・・・ウェブ、５・・・仮
想貫通孔、
６・・・仮想貫通孔５が内接するよう描いた正八角形、
６ａ・・・スリット、 ６ｂ・・・三角形状プレート
、７・・・正八角形の貫通孔
Ａ今」1 and 2 are explanatory diagrams showing the steps of the first embodiment of the method of the present invention, and FIG. 3 is a sectional view taken along the line A-A in FIG.
FIG. 4 is a front view showing a second embodiment of the method of the present invention, and FIGS. 5 to 9 are explanatory views showing conventional examples of reinforcing means for the web around the through hole. 1... Steel beam, la... Web, 5... Virtual through hole, 6... Regular octagon drawn so that the virtual through hole 5 is inscribed, 6a... Slit, 6b... Triangular shape Plate, 7...regular octagonal through hole A now.''
Claims (1)
多角形を描き、この正多角形の各対角線上に沿ってスリ
ットを設け、この各スリットにより形成された各三角形
状プレートを、正多角形の各一辺をそれぞれ折曲線とし
てウェブ面へ折曲当接し、この折曲当接した各三角形状
プレートの斜辺縁とウェブ面とを溶接することを特徴と
する鉄骨梁ウェブにおける貫通孔の形成方法。Draw a regular polygon inscribed with a virtual through hole of the required diameter on the web surface of the steel beam, provide slits along each diagonal of this regular polygon, and create each triangular plate formed by each slit. A through-hole in a steel beam web, characterized in that each side of a regular polygon is bent into contact with the web surface as a bending line, and the oblique edge of each triangular plate that is in this bended contact is welded to the web surface. How to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18112786A JPS6335946A (en) | 1986-07-30 | 1986-07-30 | Formation of piercing hole in reinforcing bar beam web |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18112786A JPS6335946A (en) | 1986-07-30 | 1986-07-30 | Formation of piercing hole in reinforcing bar beam web |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6335946A true JPS6335946A (en) | 1988-02-16 |
Family
ID=16095338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18112786A Pending JPS6335946A (en) | 1986-07-30 | 1986-07-30 | Formation of piercing hole in reinforcing bar beam web |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6335946A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04122883A (en) * | 1990-09-14 | 1992-04-23 | Nikka Densoku Kk | Metal detection method and apparatus |
| JP2008115663A (en) * | 2006-11-08 | 2008-05-22 | Misawa Homes Co Ltd | Reinforcing structure for wooden member |
| JP2021179172A (en) * | 2016-07-25 | 2021-11-18 | 旭化成建材株式会社 | Reinforcement structure |
-
1986
- 1986-07-30 JP JP18112786A patent/JPS6335946A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04122883A (en) * | 1990-09-14 | 1992-04-23 | Nikka Densoku Kk | Metal detection method and apparatus |
| JP2008115663A (en) * | 2006-11-08 | 2008-05-22 | Misawa Homes Co Ltd | Reinforcing structure for wooden member |
| JP2021179172A (en) * | 2016-07-25 | 2021-11-18 | 旭化成建材株式会社 | Reinforcement structure |
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