JPH05287841A - Reinforcing structure for bucking, in steel structure plate element - Google Patents
Reinforcing structure for bucking, in steel structure plate elementInfo
- Publication number
- JPH05287841A JPH05287841A JP8899592A JP8899592A JPH05287841A JP H05287841 A JPH05287841 A JP H05287841A JP 8899592 A JP8899592 A JP 8899592A JP 8899592 A JP8899592 A JP 8899592A JP H05287841 A JPH05287841 A JP H05287841A
- Authority
- JP
- Japan
- Prior art keywords
- buckling
- reinforcing
- plate element
- steel
- steel structure
- 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
Landscapes
- Rod-Shaped Construction Members (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、鉄骨構造物における梁
等の鋼構造平板要素の座屈強度を高めるための補強構造
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforcing structure for increasing the buckling strength of steel structural flat plate elements such as beams in a steel frame structure.
【０００２】[0002]
【従来の技術】鉄骨構造物において座屈を受け持つ鋼構
造平板要素，例えば梁や間柱のウェブプレートを補強す
る場合には、従来、図５に示すように鋼構造平板要素で
ある梁５０のウェブプレート５０ａ表面に補強リブ５１
の端面を直交するように当接して接合し、もって座屈耐
力の向上を図っていた。2. Description of the Related Art When reinforcing a steel structure flat plate element, such as a web plate of a beam or a stud, which is responsible for buckling in a steel structure, conventionally, as shown in FIG. 5, a web of a beam 50 which is a steel structure flat plate element. Reinforcing ribs 51 on the surface of the plate 50a
The end faces of were contacted and joined so as to be orthogonal to each other, thereby improving the buckling resistance.
【０００３】このとき、上記補強リブ５１の端部５１ａ
とウェブ５０ａ表面との接合は、図６に示すように、隅
肉溶接によって実施されている。At this time, the end portion 51a of the reinforcing rib 51 is
The web and the surface of the web 50a are joined by fillet welding, as shown in FIG.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記従
来の座屈補強構造では、溶接止端部５２に応力が集中し
てその部分の疲労強度が低下したり溶接に伴う熱作用等
によって母材である梁が脆化することがあるという問題
がある。また、溶接による角変形が発生することがあ
り、該角変形が発生すると補強される平板要素である梁
のウェブプレートに，座屈耐力を低下させる初期不整が
発生するという問題がある。However, in the above-described conventional buckling reinforcement structure, stress concentrates on the weld toe portion 52 and the fatigue strength of that portion is reduced, and the base material is heated by the welding due to the heat action and the like. There is a problem that a certain beam may become brittle. Further, there is a problem that angular deformation due to welding may occur, and when the angular deformation occurs, an initial irregularity that reduces buckling resistance occurs in the web plate of the beam, which is a flat plate element to be reinforced.
【０００５】本発明は、上記のような問題点に着目して
なされたもので、座屈による不安定現象が発生するであ
ろう鋼構造平板要素を簡易な手段で補強して座屈耐力と
塑性変形能力の向上を図ることを目的としている。The present invention has been made by paying attention to the above-mentioned problems, and the buckling proof strength is improved by reinforcing the steel structure flat plate element, which may cause an unstable phenomenon due to buckling, by a simple means. The purpose is to improve plastic deformation capacity.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
に、本発明の鋼構造平板要素の座屈補強構造は、鋼構造
平板要素の表面に補強板の平板要素をボルト止めによっ
て接合したことを特徴としている。In order to achieve the above object, the buckling reinforcing structure of a steel structural flat plate element of the present invention is such that the flat plate element of the reinforcing plate is joined to the surface of the steel structural flat plate element by bolting. Is characterized by.
【０００７】[0007]
【作用】外力が鋼構造平板要素に入力されることで該平
板要素が座屈して構面外へはらみ出そうとしても、該平
板要素の表面に接合している補強板が該はらみ出しを抑
えるので、鋼構造平板要素の座屈耐力が高まると共に座
屈に伴う不安定現象を防止し、更には鋼構造平板要素の
塑性変形能力を大きくする。When the external force is input to the steel structure flat plate element and the flat plate element is buckled and sticks out of the construction surface, the reinforcing plate joined to the surface of the flat plate element suppresses the sticking out. Therefore, the buckling resistance of the steel structure flat plate element is increased, the instability phenomenon due to buckling is prevented, and the plastic deformation capability of the steel structure flat plate element is increased.
【０００８】本発明の鋼構造平板要素への補強板の接合
は、溶接施工を利用しないので該溶接施工に伴う疲労強
度の低下や材料の脆化が発生しないと共に、高張力鋼や
ステンレス鋼等の溶接施工管理が難しい鋼や合金に対し
ての座屈補強手段としても適用できる。また、補強板を
鋼構造平板要素に対してボルト接合するので溶接のため
の熟練工を必要とせず従来よりも簡便に現場施工が可能
となる。Since the joining of the reinforcing plate to the steel structure flat plate element of the present invention does not utilize welding work, the fatigue strength is not lowered and the material is not embrittled due to the welding work, and high strength steel, stainless steel, etc. It can also be applied as a buckling reinforcement means for steel and alloys for which welding control is difficult. Further, since the reinforcing plate is bolted to the steel structure flat plate element, a skilled worker for welding is not required, and on-site construction can be performed more easily than before.
【０００９】[0009]
【実施例】本発明の実施例を図面に基づいて説明する。
まず、構成を説明すると、図１に示すように、所定の間
隔をあけて複数立設されている柱１の所定位置にそれぞ
れ、Ｈ形鋼からなる梁２が横架されて鉄骨構造物が構築
される。Embodiments of the present invention will be described with reference to the drawings.
First, the structure will be described. As shown in FIG. 1, a beam 2 made of H-shaped steel is laterally laid at predetermined positions of a plurality of pillars 1 standing upright at predetermined intervals to form a steel structure. Be built.
【００１０】このとき、上記梁２のウェブプレート２ａ
が補強対象となる鋼構造平板要素であって、地震等によ
って柱１等から伝達される外力や荷重によって、該ウェ
ブプレート２ａに座屈による面外方向への不安定現象の
発生が予想される。そのウェブプレート２ａの座屈補強
のための施工は、図１及び図２に示すように、梁２のウ
ェブプレート２ａの左右両側面に対して、それぞれ溝形
鋼からなる補強板３のウエブ部を当接してボルト４で緊
結することで実施される。At this time, the web plate 2a of the beam 2 is
Is a steel structure flat plate element to be reinforced, and an instability phenomenon in the out-of-plane direction due to buckling of the web plate 2a is expected to occur due to an external force or load transmitted from the column 1 or the like due to an earthquake or the like. .. As shown in FIGS. 1 and 2, the construction for buckling reinforcement of the web plate 2a is performed on the web portions of the reinforcing plate 3 made of channel steel on the left and right side surfaces of the web plate 2a of the beam 2, respectively. Is abutted against and fastened with the bolt 4.
【００１１】このように梁２のウェブプレート２ａにボ
ルト４によって補強板３を接合するという簡易手段で補
強をすることによって、梁２のウェブプレート２ａが座
屈に伴って左右方向（面外方向）にはらみ出そうとして
も該ウェブプレート２ａを左右から挟み込んでいる補強
板３が該はらみ出しを最小限に抑えて、鋼構造平板要素
であるウェブプレート３ａの座屈耐力が高まる。このた
め、座屈に伴う不安定現象が充分に抑止されて、塑性変
形能力が補強板３を接合しないときより大きくなる。As described above, the web plate 2a of the beam 2 is reinforced by the simple means of joining the reinforcing plate 3 with the bolts 4, so that the web plate 2a of the beam 2 is laterally moved (out-of-plane direction) due to buckling. ), The reinforcing plates 3 that sandwich the web plate 2a from the left and right suppress the protrusion to a minimum, and the buckling resistance of the web plate 3a, which is a steel structural flat plate element, increases. Therefore, the instability phenomenon due to buckling is sufficiently suppressed, and the plastic deformation capacity becomes larger than that when the reinforcing plate 3 is not joined.
【００１２】次に、地震の振動を吸収するために大きな
曲げ変形，剪断変形，若しくは軸方向変形等を意図的に
集中発生させ、その材の塑性変形時のエネルギー吸収に
よって制振効果を得る目的で配設される部材（実用新案
登録願（整理番号４９１０６１−４４５）平成３年８月
１６日）に対して，本発明の座屈補強構造を適用した例
を図３及び図４に示す。図３の部材６は、地震時に早期
に降伏し，座屈が発生し易いので、それを防止するため
に本発明の座屈補強構造を適用し、塑性変形能力の向上
を図るものである。Next, in order to absorb the vibration of the earthquake, a large bending deformation, shearing deformation, axial deformation or the like is intentionally generated, and the purpose is to obtain a damping effect by absorbing energy during plastic deformation of the material. 3 and 4 show an example in which the buckling reinforcement structure of the present invention is applied to the member (application for utility model registration (reference number 491061-445) August 16, 1991) disposed in FIG. The member 6 shown in FIG. 3 easily yields at the time of an earthquake and buckling is likely to occur. Therefore, in order to prevent it, the buckling reinforcing structure of the present invention is applied to improve the plastic deformation ability.
【００１３】また、上記実施例においては、間柱７の中
間部分に小耐力部材６を組み込んだ一例で説明したが、
上下の梁２部材間に配設される筋違い材の中途部に、該
筋違い材よりも耐力が低い小耐力部材を組み込んでもよ
い。この場合にも、該小耐力部材が先に塑性変形をし
て、構造物に入力された振動エネルギーを吸収する。ま
た、上記両実施例において補強板３として溝形鋼を使用
しているが他の形状の形鋼でもよいし、所定の剛性を有
しているのならば平板形状をしていてもよく、要は、鋼
構造平板の座屈による構面外へのはらみだしを抑える形
状で且つ所定の剛性を有していれば他の形状をしていて
もよい。In the above embodiment, an example in which the small proof member 6 is incorporated in the middle portion of the stud 7 has been described.
A small yield strength member having a yield strength lower than that of the brace may be incorporated in the middle of the brace disposed between the upper and lower beams 2 members. Also in this case, the small proof member first plastically deforms to absorb the vibration energy input to the structure. Further, although the channel steel is used as the reinforcing plate 3 in both of the above-mentioned embodiments, it may be shaped steel of other shapes, or may have a flat plate shape as long as it has a predetermined rigidity, In short, the steel structure flat plate may have another shape as long as it has a shape that suppresses the steel plate from buckling out of the structure and has a predetermined rigidity.
【００１４】[0014]
【発明の効果】以上説明してきたように、本発明の鋼構
造平板要素の座屈補強構造では、従来のような溶接施工
に伴う疲労強度の低下や材料の脆化を発生することな
く、鋼構造平板要素の座屈耐力を向上させることができ
る。また、鋼構造平板要素の座屈に伴う構面へのはらみ
出しを補強板が抑えるために該座屈に伴う不安定現象を
従来よりも抑えられて塑性変形を大きくすることができ
る。As described above, in the buckling reinforcement structure of the steel structural flat plate element of the present invention, the steel does not suffer from the reduction of fatigue strength and the embrittlement of the material due to the conventional welding work. The buckling strength of the structural flat plate element can be improved. Further, since the reinforcing plate suppresses the protrusion of the steel structure flat plate element to the structure surface due to the buckling, the instability phenomenon associated with the buckling can be suppressed more than before, and the plastic deformation can be increased.
【００１５】また、一般の高力ボルト接合と同様な施工
方法によって該補強板取付けの施工が実施できるので、
従来よりも施工が簡易になって現場施工も可能となる。
更に、高張力鋼やステンレス鋼などの溶接施工管理が難
しい鋼や合金の補剛にも適用できる。Further, since the mounting of the reinforcing plate can be carried out by a construction method similar to the general high strength bolt connection,
Construction will be easier than before and it will be possible to carry out on-site construction.
Furthermore, it can be applied to stiffening steels and alloys such as high-strength steels and stainless steels that are difficult to manage for welding.
【図１】本発明に係る実施例の座屈補強構造を示す側面
図である。FIG. 1 is a side view showing a buckling reinforcement structure according to an embodiment of the present invention.
【図２】本発明に係る実施例の座屈補強構造を示すＡ−
Ａ矢視図である。FIG. 2 is an A- showing a buckling reinforcement structure according to an embodiment of the present invention.
FIG.
【図３】本発明に係る第２実施例の座屈補強構造を示す
側面図である。FIG. 3 is a side view showing a buckling reinforcing structure according to a second embodiment of the present invention.
【図４】本発明に係る第２実施例の座屈補強構造を示す
Ｂ−Ｂ矢視図である。FIG. 4 is a BB arrow view showing a buckling reinforcement structure of a second embodiment according to the present invention.
【図５】従来の座屈補強構造を示す側面図である。FIG. 5 is a side view showing a conventional buckling reinforcing structure.
【図６】補強リブの接合部を示す図である。FIG. 6 is a view showing a joint portion of a reinforcing rib.
２ 梁 ２ａ ウェブプレート（鋼構造平板要素） ３ 補強板 ４ ボルト 2 Beam 2a Web plate (Steel structure flat plate element) 3 Reinforcement plate 4 Bolt
Claims (1)
止めによって接合したことを特徴とする鋼構造平板要素
の座屈補強構造。1. A buckling-reinforcing structure for a steel structural flat plate element, wherein a reinforcing plate is joined to the surface of the steel structural flat plate element by bolting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8899592A JPH05287841A (en) | 1992-04-09 | 1992-04-09 | Reinforcing structure for bucking, in steel structure plate element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8899592A JPH05287841A (en) | 1992-04-09 | 1992-04-09 | Reinforcing structure for bucking, in steel structure plate element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05287841A true JPH05287841A (en) | 1993-11-02 |
Family
ID=13958398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8899592A Pending JPH05287841A (en) | 1992-04-09 | 1992-04-09 | Reinforcing structure for bucking, in steel structure plate element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05287841A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929310A (en) * | 2015-06-09 | 2015-09-23 | 同济大学 | Replaceable energy consuming beam |
| JP2017166122A (en) * | 2016-03-14 | 2017-09-21 | 新日鐵住金株式会社 | Steel beam and column-beam joint structure |
| CN109057024A (en) * | 2018-09-12 | 2018-12-21 | 西安建筑科技大学 | The double replaceable active beam link of channel cross-section-steel skirt beam connection structures and installation method |
| JP2019090249A (en) * | 2017-11-15 | 2019-06-13 | 株式会社カネカ | Reinforcing metal fitting and frame kit for solar cell module |
-
1992
- 1992-04-09 JP JP8899592A patent/JPH05287841A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929310A (en) * | 2015-06-09 | 2015-09-23 | 同济大学 | Replaceable energy consuming beam |
| JP2017166122A (en) * | 2016-03-14 | 2017-09-21 | 新日鐵住金株式会社 | Steel beam and column-beam joint structure |
| JP2019090249A (en) * | 2017-11-15 | 2019-06-13 | 株式会社カネカ | Reinforcing metal fitting and frame kit for solar cell module |
| CN109057024A (en) * | 2018-09-12 | 2018-12-21 | 西安建筑科技大学 | The double replaceable active beam link of channel cross-section-steel skirt beam connection structures and installation method |
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