JPS63147027A - Buckling preventing structure of iron beam - Google Patents
Buckling preventing structure of iron beamInfo
- Publication number
- JPS63147027A JPS63147027A JP61292588A JP29258886A JPS63147027A JP S63147027 A JPS63147027 A JP S63147027A JP 61292588 A JP61292588 A JP 61292588A JP 29258886 A JP29258886 A JP 29258886A JP S63147027 A JPS63147027 A JP S63147027A
- Authority
- JP
- Japan
- Prior art keywords
- steel beam
- buckling
- rib
- web
- steel
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title 2
- 229910052742 iron Inorganic materials 0.000 title 1
- 229910000831 Steel Inorganic materials 0.000 claims description 30
- 239000010959 steel Substances 0.000 claims description 30
- 230000002265 prevention Effects 0.000 claims description 8
- 230000003014 reinforcing effect Effects 0.000 description 12
- 210000004072 lung Anatomy 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 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） 本発明は鉄骨梁の座屈防止構造に係るものである。[Detailed description of the invention] (Industrial application field) The present invention relates to a buckling prevention structure for steel beams.
（従来の技術）
従来、鉄骨梁の下部フランジの座屈防止及び横方向補強
のために小梁及び下部７ランジの座屈止めが建物平面方
向に配設されていた。(Prior Art) Conventionally, in order to prevent buckling of the lower flange of a steel beam and to strengthen it in the lateral direction, buckling preventers for the small beam and the lower seven flange have been arranged in the plane direction of the building.
（発明が解決しようとする問題点）
従って前記従来構造においては、鉄骨量が増大し、工程
が煩雑になり、天井内空間が前記小梁。(Problems to be Solved by the Invention) Therefore, in the conventional structure, the amount of steel frames increases, the process becomes complicated, and the space in the ceiling is reduced to the size of the small beam.
座屈止めによって制約され、設備ダクト及び電気器具等
の配置に制限を受ける。Restricted by buckling prevention, placement of equipment ducts, electrical appliances, etc. is restricted.
（問題点を解決するための手段）
本発明はこのような問題点を解決するために提案された
鉄骨梁の座屈防止構造に係り、鉄骨梁のウェブに縦リブ
を設けるとともに、同縦リブにアンカー鉄筋を取付け、
前記ウェブ上端を鉄骨梁上のコンクリートスラブの下面
に連設された上部コンクリートリブ内に埋設するととも
に、同コンクリートリブ内に前記アンカー鉄筋を定着し
たことによって％前記問題点を解決するものである。(Means for Solving the Problems) The present invention relates to a buckling prevention structure for steel beams proposed in order to solve the above problems. Attach anchor reinforcing bars to
The above-mentioned problem is solved by embedding the upper end of the web in an upper concrete rib connected to the lower surface of a concrete slab on a steel beam, and fixing the anchor reinforcing steel in the concrete rib.
（作用）
本発明は前記したように、鉄骨梁のウェブに縦リブが設
けられることによって同梁の強度、剛性が増大され、前
記縦リブに作用する座屈力が、ウェブ上端に打設された
上部コンクリートリブにおける圧縮反力、同コンクリー
トリブに定着された前記縦リブに取付ゆられたアンカー
鉄筋における引張反力によって支持され、かくして鉄骨
梁上のコンクリートスラブに座屈力が伝達されることに
よって鉄骨梁の下部７ランジの座屈が防止される。(Function) As described above, in the present invention, the strength and rigidity of the steel beam are increased by providing the longitudinal ribs on the web of the steel beam, and the buckling force acting on the longitudinal ribs is reduced by driving the steel beam at the upper end of the web. The buckling force is supported by the compressive reaction force in the upper concrete rib and the tensile reaction force in the anchor reinforcing bars attached to the vertical rib fixed to the concrete rib, and thus the buckling force is transmitted to the concrete slab on the steel beam. This prevents buckling of the lower seven lunges of the steel beam.
（実施例） 以下本発明を図示の実施例について説明する。(Example) The present invention will be described below with reference to the illustrated embodiments.
第１図及び第２図において、（Ａ）はＨ型鋼より構成さ
れた鉄骨梁で、（１）は上部フランジ、（２）は下部７
ランジ、（３）はウェブである。In Figures 1 and 2, (A) is a steel beam made of H-shaped steel, (1) is the upper flange, and (2) is the lower 7
Lunge, (3) is a web.
（Ｂｌは前記鉄骨梁（Ａ）上に支持されたコンクリート
スラブである。(Bl is a concrete slab supported on the steel beam (A).
前記ウェブ（３）の両側には上下両７ランジ（１）（２
１間に跨って縦リブ（４）が溶接されている。There are 7 upper and lower lunges (1) (2) on both sides of the web (3).
A vertical rib (4) is welded across the gap.
同縦リブ（４）の上端部にはアンカー鉄筋（５）が片持
状に突出するように溶接され、更にウェブ（３）の上端
部には、前記コンクリートスラブｆＢ）の下部に連設す
るよう上部コンクリートリブ（６）を打設し、同リブ（
６）内に前記アンカー鉄筋（５）の突出端部を定着す、
る。An anchor reinforcing bar (5) is welded to the upper end of the vertical rib (4) so as to protrude in a cantilevered manner, and furthermore, an anchor reinforcing bar (5) is welded to the upper end of the web (3) and is connected to the lower part of the concrete slab fB). Place the upper concrete rib (6) and place the upper concrete rib (6).
6) anchoring the protruding end of the anchor reinforcing bar (5) within;
Ru.
図示の実施例は前記したように構成されているので、縦
リブ（４）によって鉄骨梁（Ａ）の強度剛性が増大し、
同ｆｆ ’Ｊブ（５）はアンカー鉄筋（５）を介して上
部コンクリートリブ（６）に一体、的に結合され、第５
図に示すように、縦リブ（５）にかかる座屈力Ｐはコン
クリート部における圧縮反力Ｒ０及びアンカー鉄筋部に
おける引張反力Ｒｔによって支承され、前記座屈力Ｐは
コンクリートスラブ（Ｂ）に伝達され、鉄骨梁（〜の下
部７ランジ（２）の座屈が防止される。Since the illustrated embodiment is configured as described above, the strength and rigidity of the steel beam (A) is increased by the vertical ribs (4),
The same ff 'J rib (5) is integrally connected to the upper concrete rib (6) via the anchor reinforcing bar (5), and the fifth
As shown in the figure, the buckling force P applied to the vertical rib (5) is supported by the compressive reaction force R0 in the concrete part and the tensile reaction force Rt in the anchor reinforcement part, and the buckling force P is applied to the concrete slab (B). This prevents buckling of the lower 7 flange (2) of the steel beam.
従って図示の実施例によれば座屈防止のための小梁、座
屈止めがなくな９．天井内が広（なり。Therefore, according to the illustrated embodiment, there is no small beam or buckling stopper for preventing buckling9. The inside of the ceiling is wide.
設備がダクト及び電気器具等の配役用空間が自由にとれ
る。Free space for equipment such as ducts and electrical appliances.
第３図及び第４図は本発明の他の実施例を示し、前記縦
リブ（４）にアンカー鉄筋（５）が同リブを横断してそ
の左右両側に突出するように溶接されている。FIGS. 3 and 4 show another embodiment of the present invention, in which anchor reinforcing bars (5) are welded to the vertical rib (4) so as to cross the rib and protrude on both left and right sides thereof.
図中前記実施例と均等部分には同一符号が附されている
。In the figure, parts equivalent to those of the above embodiment are given the same reference numerals.
なお前記実施例の作用、効果は、第１図及び第２図に示
す実施例と実質的に同一であるから、説明を省略する。The functions and effects of the embodiment described above are substantially the same as those of the embodiment shown in FIGS. 1 and 2, and therefore the explanation thereof will be omitted.
第６図は本発明を第７図に示す如くジョイストスラブの
如（リブを有するスラブ工法に適用した実施例を示し、
鉄骨梁（Ａ）のウェブ（３）に上下７ランシ（１１（２
）間に亘って溶接され六縦リブ（４）にアンカー鉄筋（
５）を溶着するとともに、同アンカー鉄筋（５）をジョ
イストスラブ（３勺のリブ（Ｃ）に定着し、同リブ（Ｃ
ｌを前記各実施例における上部コンクリートリブを兼用
せしめたものである。Figure 6 shows an embodiment in which the present invention is applied to a slab construction method with ribs, such as a joist slab, as shown in Figure 7.
The web (3) of the steel beam (A) has 7 runci (11 (2)
) is welded across the six vertical ribs (4) to the anchor reinforcing bars (
At the same time, the anchor reinforcing bars (5) are fixed to the joist slab (3 ribs (C)), and the same ribs (C) are welded.
1 also serves as the upper concrete rib in each of the above embodiments.
（発明の効果）
本発明においては前記し虎ように、鉄骨梁のウェブに縦
リブを取付けるとともに、アンカー鉄筋を取付け、＠記
つェブ上端を埋設するように鉄骨梁上のコンクリートス
ラブ下面に連設された上部コンクリートリブ内に前記ア
ンカー鉄筋を定着することによって、鉄骨梁の下部７ラ
ンジの座屈を防止し、か（して従来鉄骨梁下部７ランジ
の座屈防止、及び横方向補強のために使用されていた建
物平面方向に配設され六小梁、及び座屈止めをなくし、
天井内空間を広くし、設備ダクト及び電気器具等の配設
を容易ならしめるとともに、鉄骨量を節減し、工事量を
低減し５るものである。(Effect of the invention) As described above, in the present invention, vertical ribs are attached to the web of the steel beam, anchor reinforcing bars are attached, and the upper end of the web is buried in the lower surface of the concrete slab on the steel beam. By fixing the anchor reinforcing bars in the continuous upper concrete ribs, buckling of the lower seven lunges of the steel beam can be prevented (thereby preventing buckling of the lower seven lunges of the steel beam and reinforcing the lateral direction). Eliminated the six small beams and buckling prevention used in the direction of the building plane, and
This will widen the space within the ceiling, making it easier to install equipment ducts, electrical appliances, etc., as well as reducing the amount of steel and construction work.
第１図及び第２図は夫々本発明に係る鉄骨梁の座屈防止
構造の一実施例を示す縦断正面図、並に縦断側面図、第
３図及び第４図は夫々本発明の他の実施例を示す縦断正
面図、並に縦断側面図、第５図は本発明の作用説明図、
第６図は本発明をジョイストスラブの鉄骨梁の座屈防止
構造に適用した実施例を示す縦断正面図、第７図はジョ
イストスラブの縦断側面図である。
（Ａ）−鉄骨梁、 （Ｂｌ−コンクリートス
ラブ、（１）−上部７ランジ、 （２）−下部７ラン：
）。
（３）−ウェブ、（４）−縦リブ、
（５）−アンカー鉄筋、 （６）＝−上部コンクリー
トリブ。
代理人 弁理士 岡 本 重 文 外２名第５図
第６図 第７図1 and 2 are a longitudinal sectional front view and a longitudinal sectional side view showing one embodiment of the buckling prevention structure for steel beams according to the present invention, and FIGS. 3 and 4 are respectively illustrative of another embodiment of the buckling prevention structure of the present invention A longitudinal sectional front view and a longitudinal sectional side view showing the embodiment, FIG. 5 is an explanatory diagram of the operation of the present invention,
FIG. 6 is a longitudinal sectional front view showing an embodiment in which the present invention is applied to a buckling prevention structure of a steel beam of a joist slab, and FIG. 7 is a longitudinal sectional side view of the joist slab. (A) - steel beam, (Bl - concrete slab, (1) - upper 7 runs, (2) - lower 7 runs:
). (3) - web, (4) - longitudinal rib, (5) - anchor reinforcement, (6) = - upper concrete rib. Agent: Patent attorney Shigefumi Okamoto and two others Figure 5 Figure 6 Figure 7
Claims (1)
アンカー鉄骨を取付け、前記ウェブ上端を鉄骨梁上のコ
ンクリートスラブの下面に連設された上部コンクリート
リブ内に埋設するとともに、同コンクリートリブ内に前
記アンカー鉄骨を定着してなることを特徴とする鉄骨梁
の座屈防止構造。A vertical rib is provided on the web of the steel beam, an anchor steel frame is attached to the vertical rib, and the upper end of the web is buried in the upper concrete rib that is connected to the lower surface of the concrete slab on the steel beam. A buckling prevention structure for a steel beam, characterized in that the anchor steel frame is fixed to the steel beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61292588A JPS63147027A (en) | 1986-12-10 | 1986-12-10 | Buckling preventing structure of iron beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61292588A JPS63147027A (en) | 1986-12-10 | 1986-12-10 | Buckling preventing structure of iron beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63147027A true JPS63147027A (en) | 1988-06-20 |
Family
ID=17783715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61292588A Pending JPS63147027A (en) | 1986-12-10 | 1986-12-10 | Buckling preventing structure of iron beam |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63147027A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6545866B2 (en) | 1998-02-04 | 2003-04-08 | Fujitsu Limited | Electronic device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5034332B1 (en) * | 1971-05-25 | 1975-11-07 | ||
| JPS514334B2 (en) * | 1971-11-11 | 1976-02-10 | ||
| JPS57100247A (en) * | 1980-12-12 | 1982-06-22 | Kajima Corp | Joint structure of floor panel and iron beam |
-
1986
- 1986-12-10 JP JP61292588A patent/JPS63147027A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5034332B1 (en) * | 1971-05-25 | 1975-11-07 | ||
| JPS514334B2 (en) * | 1971-11-11 | 1976-02-10 | ||
| JPS57100247A (en) * | 1980-12-12 | 1982-06-22 | Kajima Corp | Joint structure of floor panel and iron beam |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6545866B2 (en) | 1998-02-04 | 2003-04-08 | Fujitsu Limited | Electronic device |
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