JPH05331964A - Reinforcing structure for opening of steel beam - Google Patents
Reinforcing structure for opening of steel beamInfo
- Publication number
- JPH05331964A JPH05331964A JP13949792A JP13949792A JPH05331964A JP H05331964 A JPH05331964 A JP H05331964A JP 13949792 A JP13949792 A JP 13949792A JP 13949792 A JP13949792 A JP 13949792A JP H05331964 A JPH05331964 A JP H05331964A
- Authority
- JP
- Japan
- Prior art keywords
- opening
- web
- steel beam
- flange
- stiffening member
- 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、Ｈ形鋼梁等、ウェブの
上下にフランジを有する鋼梁の開口部補剛構造に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an opening stiffening structure for steel beams such as H-shaped steel beams having flanges above and below the web.
【０００２】[0002]
【従来の技術】Ｈ形鋼梁等において、設備配管を通す等
の目的で、ウェブに開口部が形成される場合がある。2. Description of the Related Art In an H-shaped steel beam or the like, an opening may be formed in a web for the purpose of passing equipment piping or the like.
【０００３】従来、ウェブ開口部に伴う断面欠損に対し
ては、ウェブの開口部周辺を補強するのが一般的であ
り、例えば実開昭６３−８５７２１号公報には、従来例
として述べられているリング状の補強プレートをウェブ
開口部の周囲に隅肉溶接したものの他、ウェブ面に締付
け固定されるリング状のフランジ部と、開口部と略同径
の筒状サポート部とからなる補強部材を、開口部を穿設
する前に、複数のボルトによりウェブに固定する梁の補
強構造が記載されている。Conventionally, it has been general to reinforce the periphery of the opening of the web with respect to the cross-section loss associated with the opening of the web. For example, Japanese Utility Model Laid-Open No. 63-85721 describes it as a conventional example. In addition to a ring-shaped reinforcing plate that is fillet-welded around the opening of the web, a reinforcing member that includes a ring-shaped flange portion that is clamped and fixed to the web surface and a cylindrical support portion that has a diameter approximately the same as that of the opening. The beam reinforcing structure is described in which is fixed to the web by a plurality of bolts before the opening is formed.
【０００４】[0004]
【発明が解決しようとする課題】鋼梁の曲げ耐力につい
てみた場合、Ｈ形鋼梁等ではフランジ部分の曲げ剛性に
対する寄与が大きい。しかし、ウェブ開口部に伴う断面
欠損により、開口位置でウェブ、フランジとも大きな局
部変形が生じる恐れがあり、何らかの補強が必要となる
場合が多い。In view of bending strength of steel beams, H-shaped steel beams and the like make a large contribution to the bending rigidity of the flange portion. However, there is a possibility that a large local deformation may occur in both the web and the flange at the opening position due to the cross-section loss associated with the web opening, and in some cases some reinforcement is required.
【０００５】また、材端部その他、大きな曲げモーメン
トが生ずる区間については、断面欠損に加え、フランジ
の局部座屈変形の問題等もあり、開口を設けるのが難し
く、補強するとしても、その部分の構造が煩雑になり、
従来の単に補強プレートで開口部まわりの強度を上げる
構造には限界がある。In addition, in the end of the material and other sections where a large bending moment is generated, it is difficult to provide an opening because there is a problem of local buckling deformation of the flange in addition to the lack of cross section. The structure of becomes complicated,
There is a limit to the conventional structure in which only the reinforcing plate is used to increase the strength around the opening.
【０００６】これに対し、本発明は従来の補強構造のよ
うに、補強部材をウェブ開口部周辺に、直接一体化し、
ウェブの強度を上げるものと異なり、開口部近傍のウェ
ブ及びフランジの変形を拘束することにより、構造部材
の持つ塑性変形能力を有効に利用しつつ、開口部の断面
欠損分を補い、耐力的に優れた構造部材を提供すること
を目的としたものである。On the other hand, according to the present invention, as in the conventional reinforcing structure, the reinforcing member is directly integrated around the web opening,
Unlike the one that increases the strength of the web, by constraining the deformation of the web and the flange near the opening, the plastic deformation capacity of the structural member is effectively used, while compensating for the loss of the cross-section of the opening and increasing the yield strength. It is intended to provide an excellent structural member.
【０００７】[0007]
【課題を解決するための手段】本発明は、Ｈ形鋼梁等、
ウェブの上下にフランジを有し、ウェブに開口部を設け
た鋼梁の開口部補剛構造であり、板要素からなる補剛部
材を、鋼梁のウェブ及びフランジに面で接するように添
接したことを特徴とする。また、本発明の開口部補剛構
造は、鋼梁のフランジの塑性化域、すなわちフランジが
塑性化する変形領域においても、フランジの局部座屈変
形等に伴う耐力劣化を補い、鋼梁としての安定した変形
性能を確保するものであり、補剛部材は鋼梁の開口部を
挟む梁長手方向所定区間に添接し、ウェブに対して止め
付け、フランジに対しては実質的に止め付けない。The present invention relates to an H-shaped steel beam, etc.
It is an opening stiffening structure of a steel beam that has flanges on the top and bottom of the web, and an opening is provided in the web.A stiffening member consisting of plate elements is attached so as to make surface contact with the web and flange of the steel beam. It is characterized by having done. Further, the opening stiffening structure of the present invention, even in the plasticized region of the flange of the steel beam, that is, in the deformation region where the flange is plasticized, compensates for the proof stress deterioration due to the local buckling deformation of the flange, etc. In order to ensure a stable deformation performance, the stiffening member is abutted on a predetermined section in the beam longitudinal direction sandwiching the opening of the steel beam, and is fixed to the web and is not substantially fixed to the flange.
【０００８】補剛部材を添接することで、鋼梁のウェブ
及びフランジのそれぞれ面外方向への変形（少なくとも
１方向について）が拘束される。補剛部材の形態として
は、鋼梁の開口部に対応する位置に、同様の開口部を形
成した溝形断面部材を、鋼梁のウェブ高さ方向全体に添
接するものや、鋼梁のウェブに対し、開口部の上下にそ
れぞれ別個の補剛部材を止め付けるもの等が考えられ、
鋼梁のウェブ及びフランジに対し、それぞれ補剛部材を
構成する板要素が面で接する形態とする。By abutting the stiffening member, the deformation of the web and the flange of the steel beam in the out-of-plane direction (at least in one direction) is restrained. As the form of the stiffening member, a groove-shaped cross-section member having a similar opening formed at a position corresponding to the opening of the steel beam is attached along the entire web height direction of the steel beam, or the web of the steel beam. On the other hand, it is conceivable to fix separate stiffening members above and below the opening,
The plate elements constituting the stiffening member are in surface contact with the web and the flange of the steel beam.
【０００９】また、補剛部材は、鋼梁のウェブの両面に
添接し、両側からウェブを挟み込む場合と、ウェブの片
面にのみ添接する場合とがある。Further, the stiffening member may be attached to both sides of the web of the steel beam and sandwich the web from both sides, or may be attached to only one side of the web.
【００１０】さらに、補剛部材の止め付け方としては、
ボルト等でルーズホールに対し、面内方向のずれを許容
する形で止め付ける以外に、ボルトないし溶接でしっか
り止め付け、開口部による耐力減少分をカバーすること
が考えられる。Further, as a method of fixing the stiffening member,
It is conceivable that the loose hole is secured to the loose hole with a bolt or the like in a form that allows the shift in the in-plane direction, or is secured firmly with a bolt or welding to cover the decrease in proof strength due to the opening.
【００１１】[0011]
【作用】図９はＨ形鋼梁材端部のウェブに開口部がある
場合の開口部近傍の変形性状を数値解析し、鋼梁破壊状
態（降伏耐力到達後、１／２まで耐力劣化した時の状
態）における変形の解析結果を示したものである。FIG. 9 is a numerical analysis of the deformation properties in the vicinity of the opening when the web at the end of the H-shaped steel beam has an opening. It shows the analysis result of the deformation in the (time state).
【００１２】数値解析は、図８に示すように、Ｈ形鋼梁
を４節点、四角形シェル要素でモデル化して行った。図
８(a) はフランジの要素分割を、図８(b) はウェブの要
素分割を示したものである。加力形式は、片持梁で、梁
右端に集中荷重を作用させている。解析対象のＨ形鋼梁
は、高さ４００mm、フランジ幅１４７mm、ウェブ厚６m
m、フランジ厚１２mmの軟鋼で、開口部の開口半径を８
０mm、梁左端から加力点までの距離Ｌ＝２０００mmに対
し、梁左端から開口部中心までの距離Ｌ’＝２００mmと
した。Numerical analysis was carried out by modeling an H-shaped steel beam with four nodes and rectangular shell elements, as shown in FIG. FIG. 8 (a) shows the element division of the flange, and FIG. 8 (b) shows the element division of the web. The force type is a cantilever beam, and a concentrated load is applied to the right end of the beam. The H-shaped steel beam to be analyzed has a height of 400 mm, a flange width of 147 mm, and a web thickness of 6 m.
m, mild steel with a flange thickness of 12 mm, the opening radius of the opening is 8
The distance L from the left end of the beam to the center of the opening is 2000 mm, while the distance L'from the left end of the beam to the center of the opening is 200 mm.
【００１３】数値解析結果によると、開口部を中心とす
る領域で、ウェブが面内にも大きく歪み、また面外にも
しわが発生する。それにつられるように、フランジの局
部変形が増大し、耐荷能力を失うことが分かる。According to the results of numerical analysis, the web is largely distorted in the plane and wrinkles are also produced out of the plane in the region around the opening. As a result, it can be seen that the local deformation of the flange increases and the load bearing capacity is lost.
【００１４】これに対し、本発明の鋼梁の開口部補剛構
造は、鋼梁のウェブ及びフランジ内側面に面で接する補
剛部材が、ウェブの開口部近傍の面外へのしわを押さえ
つつ、梁耐力を支配するフランジの局部変形の自由を拘
束する形態であり、ウェブ及びフランジ間での変形の波
及が抑制されるとともに、フランジの局部板座屈が抑え
られることで、鋼梁の塑性変形能力を十分に生かすこと
ができる。On the other hand, in the stiffening structure for the opening portion of the steel beam of the present invention, the stiffening member which is in surface contact with the web and the inner surface of the flange of the steel beam suppresses the wrinkles outside the surface near the opening portion of the web. Meanwhile, it is a form that restrains the local deformation freedom of the flange that governs the beam yield strength, and suppresses the spread of the deformation between the web and the flange, and also suppresses the local plate buckling of the flange, thus The plastic deformation capacity can be fully utilized.
【００１５】また、補剛部材を、鋼梁の開口部を挟む所
定区間に設けることで、補剛部材が開口部の両側の健全
なウェブ部分をつなぐ形で、応力伝達が図れる。Further, by providing the stiffening member in a predetermined section sandwiching the opening of the steel beam, the stiffening member can connect the sound web portions on both sides of the opening to transmit stress.
【００１６】[0016]
【実施例】次に、図示した実施例について説明する。EXAMPLES Next, the illustrated examples will be described.
【００１７】図１は本発明の一実施例を示したもので、
Ｈ形鋼梁１のウェブ２に設けられた開口部４と同形の開
口部１４を形成した溝形断面の補剛部材１１を、梁１の
開口部４を挟む所定区間に添接している。補剛部材１１
の本体はウェブ１２と上下のフランジ１３とからなり、
梁１のウェブ２及び上下のフランジ３で形成される凹部
内に嵌合し、ウェブ１２を梁１のウェブ２に当接させる
とともに、フランジ１３の外面を梁１のフランジ３内面
に当接させている。FIG. 1 shows an embodiment of the present invention.
A stiffening member 11 having a groove-shaped cross section, in which an opening 14 having the same shape as the opening 4 provided in the web 2 of the H-shaped steel beam 1 is formed, is attached to a predetermined section sandwiching the opening 4 of the beam 1. Stiffening member 11
The body consists of a web 12 and upper and lower flanges 13,
Fitting in the recess formed by the web 2 of the beam 1 and the upper and lower flanges 3, the web 12 is brought into contact with the web 2 of the beam 1, and the outer surface of the flange 13 is brought into contact with the inner surface of the flange 3 of the beam 1. ing.
【００１８】補剛部材１１の梁１への取り付けは、補剛
部材１１の４隅に通したボルト５により、ウェブ２に対
して行われる。一方、フランジ３に対しては、単に当接
させるだけで止め付けない。また、本実施例では補剛部
材１１のボルト孔をルーズホール６とすることで、補剛
部材１１の面内方向のずれを許容し、補剛部材１１がで
きるだけ、梁１の曲げ剛性に関わらないようにしてい
る。The attachment of the stiffening member 11 to the beam 1 is performed on the web 2 by the bolts 5 passing through the four corners of the stiffening member 11. On the other hand, the flange 3 is simply abutted and not fixed. Further, in this embodiment, the bolt holes of the stiffening member 11 are loose holes 6, so that the stiffening member 11 is allowed to shift in the in-plane direction, and the stiffening member 11 does not affect the bending rigidity of the beam 1 as much as possible. I try not to.
【００１９】図２は図１の実施例に対応する補剛部材１
１の変形例を示したもので、ウェブ１２の開口部１４位
置から円筒部１５を突出させ、ウェブ１２との間に補強
リブ１６を周方向に分散配置している。円筒部１５は補
剛部材１１自体の断面剛性を上げる他、梁１を貫通する
配管等の支持部材としても利用できる。FIG. 2 shows a stiffening member 1 corresponding to the embodiment of FIG.
In the first modified example, the cylindrical portion 15 is projected from the position of the opening portion 14 of the web 12, and the reinforcing ribs 16 are circumferentially dispersed between the web 12 and the cylindrical portion 15. The cylindrical portion 15 can be used not only to increase the cross-sectional rigidity of the stiffening member 11 itself, but also to be used as a supporting member such as a pipe penetrating the beam 1.
【００２０】図３は図１の実施例に対応する補剛部材１
１のもう一つの変形例を示したもので、ウェブ１２の開
口部１４位置から円筒部１５を突出させるとともに、補
剛部材１１の上下のフランジ１３間に縦リブ１７を設け
たものである。FIG. 3 shows a stiffening member 1 corresponding to the embodiment of FIG.
Another modification of No. 1 is shown in which the cylindrical portion 15 is projected from the position of the opening 14 of the web 12 and the vertical ribs 17 are provided between the upper and lower flanges 13 of the stiffening member 11.
【００２１】以上の補剛部材１１は梁１のウェブ２の両
面に取り付け、ウェブ２を挟み込む形とすることができ
るが、ウェブ２の片面にのみ配置する場合もある。The above-mentioned stiffening member 11 can be attached to both sides of the web 2 of the beam 1 so as to sandwich the web 2, but it may be arranged only on one side of the web 2.
【００２２】図４は本発明の他の実施例を示したもの
で、補剛部材２１として、梁１のせいに比べ細幅の溝形
断面部材（チャンネル）を用い、この補剛部材２１を梁
１の開口部２の上下に配置している。各補剛部材２１
は、それぞれ梁１のフランジ３内側面とウェブ２端部と
の間の隅角部に当接し、少なくとも１方向について、ウ
ェブ２及びフランジの面外方向への変形を拘束してい
る。この場合も、補剛部材２１はウェブ２に対してボル
ト５で止め付け、フランジ３には止め付けていない。FIG. 4 shows another embodiment of the present invention. As the stiffening member 21, a groove-shaped cross-section member (channel) having a width narrower than that of the beam 1 is used, and the stiffening member 21 is used. It is arranged above and below the opening 2 of the beam 1. Each stiffening member 21
Respectively contact the corners between the inner surface of the flange 3 of the beam 1 and the ends of the web 2 to restrain the deformation of the web 2 and the flange in the out-of-plane direction in at least one direction. Also in this case, the stiffening member 21 is fixed to the web 2 with the bolts 5 and not to the flange 3.
【００２３】また、図４(a) に示されるように、図４の
実施例では、ルーズホール６にボルト５を通し、補剛部
材２１の面内方向のずれを許容しているが、図５の実施
例では同様に、細幅の溝形断面の補剛部材２１を用い、
これを通常のボルト孔に対して止め付けることで、開口
部４の両側の健全なウェブどうしを連結することによる
応力伝達に関し、よりスムーズな伝達を期待したもので
ある。Further, as shown in FIG. 4 (a), in the embodiment of FIG. 4, the bolt 5 is inserted through the loose hole 6 to allow the in-plane displacement of the stiffening member 21. Similarly, in the fifth embodiment, a stiffening member 21 having a narrow groove section is used,
By fixing this to a normal bolt hole, smoother transmission is expected with regard to stress transmission by connecting sound webs on both sides of the opening 4.
【００２４】図４(b) では補剛部材２１をウェブ２の両
面に止め付けているが、片面のみでもよい。Although the stiffening members 21 are fixed to both sides of the web 2 in FIG. 4 (b), they may be provided on only one side.
【００２５】図６は材端部のウェブに開口部を有する鋼
梁のせん断曲げ実験に用いた試験体の概要図であり、図
７はその試験結果を示したグラフである。FIG. 6 is a schematic view of a test body used in a shear bending experiment of a steel beam having an opening in the web at the end of the material, and FIG. 7 is a graph showing the test result.
【００２６】試験体としては、高さ４００mm、フランジ
幅１４７mm、ウェブ厚６mm、フランジ厚１２mm、部材の
降伏点σy ＝３５kg／mm2 （軟鋼）のＨ形鋼を用いた。
実験は、梁としての試験体に作用するせん断力Ｑを増加
させ、変位δを求めた。なお、図７のグラフでは、せん
断力Ｑに関する縦軸を降伏荷重Ｑy で、変形δに関する
横軸を降伏変形δy で無次元化している。As the test piece, H-section steel having a height of 400 mm, a flange width of 147 mm, a web thickness of 6 mm, a flange thickness of 12 mm, and a yield point of the member σ y = 35 kg / mm 2 (mild steel) was used.
In the experiment, the shear force Q acting on the test body as a beam was increased and the displacement δ was obtained. In the graph of FIG. 7, the vertical axis for the shear force Q is the yield load Q y , and the horizontal axis for the deformation δ is the yield deformation δ y .
【００２７】図７において、実線は開口部がない場合、
一点鎖線は図６に示す開口部における補剛を施した場
合、破線は開口部があり、補剛を施していない場合であ
る。本発明に相当する一点鎖線のケースでは補剛部材の
取付ボルトを介して力が流れ、ウェブによる強度低下分
を補い、また降伏後も耐荷力が維持され、変形性能が格
段に改良されている。In FIG. 7, the solid line indicates that there is no opening,
The alternate long and short dash line shows the case where the opening portion shown in FIG. 6 is stiffened, and the broken line shows the case where the opening portion has been stiffened. In the case of the one-dot chain line corresponding to the present invention, a force flows through the mounting bolt of the stiffening member to compensate for the strength decrease due to the web, and the load bearing capacity is maintained even after yielding, and the deformation performance is significantly improved. ..
【００２８】[0028]
【発明の効果】 補剛部材により、開口部近傍におけ
る鋼梁のウェブ及びフランジの面外方向の変形を拘束す
ることで、フランジ及びウェブ間での局部変形の波及が
抑制される。EFFECTS OF THE INVENTION The stiffening member restrains the deformation of the web and the flange of the steel beam in the out-of-plane direction in the vicinity of the opening, thereby suppressing the spread of local deformation between the flange and the web.
【００２９】 補剛部材をウェブに止め付け、フラン
ジに対しては止め付けないことで、鋼梁の曲げ強度に、
ほとんど関わらないようにすることができる。By fixing the stiffening member to the web and not to the flange, the bending strength of the steel beam can be improved.
You can make it barely involved.
【００３０】 上記やに関連して、大きな曲げモ
ーメントが生ずる部分においても、フランジの局部板座
屈等変形が抑えられることで、鋼梁の急激な曲げ耐力の
低下が抑制され、鋼梁の塑性変形性能を設計に取り入れ
ることができる。In connection with the above, even in a portion where a large bending moment occurs, deformation such as local plate buckling of the flange is suppressed, so that a rapid decrease in bending proof strength of the steel beam is suppressed and the plasticity of the steel beam is suppressed. Deformability can be incorporated into the design.
【００３１】 補剛部材が、断面欠損のない開口部両
側の健全なウェブ間をつないでいることで、補剛部材に
よる応力の伝達が図れる。Since the stiffening member connects between the sound webs on both sides of the opening having no cross-section loss, the stress can be transmitted by the stiffening member.
【００３２】 従来の開口部補強のように、補強プレ
ートを、溶接等で強固に取り付けるものではなく、比較
的簡単に取り付けることができる。Unlike the conventional opening reinforcement, the reinforcing plate is not attached firmly by welding or the like, but can be attached relatively easily.
【図１】本発明の一実施例を示したもので、(a) は開口
部補剛部分の正面図、(b) は梁長手方向と直角な断面図
である。1A and 1B show an embodiment of the present invention, in which FIG. 1A is a front view of an opening stiffening portion, and FIG. 1B is a cross-sectional view perpendicular to the beam longitudinal direction.
【図２】図１の実施例に対応する補剛部材の変形例を示
したもので、(a) は正面図、(b) はそのＡ−Ａ断面図、
(c) はＢ−Ｂ断面図である。2 shows a modified example of the stiffening member corresponding to the embodiment of FIG. 1, (a) is a front view, (b) is a sectional view taken along line AA, FIG.
(c) is a BB sectional view.
【図３】図１の実施例に対応する補剛部材の他の変形例
を示したもので、(a) は正面図、(b) はそのＣ−Ｃ断面
図、(c) はＤ−Ｄ断面図である。3 shows another modified example of the stiffening member corresponding to the embodiment of FIG. 1, (a) is a front view, (b) is a sectional view taken along line CC, and (c) is D-. FIG.
【図４】本発明の他の実施例を示したもので、(a) は開
口部補剛部分の正面図、(b) は梁長手方向と直角な断面
図である。4A and 4B show another embodiment of the present invention, in which FIG. 4A is a front view of an opening stiffening portion, and FIG. 4B is a cross-sectional view perpendicular to the beam longitudinal direction.
【図５】図４の実施例における補剛部材の止め付けに関
する変形例を示した正面図である。FIG. 5 is a front view showing a modified example relating to the fastening of the stiffening member in the embodiment of FIG.
【図６】ウェブに開口部を有する鋼梁のせん断曲げ実験
に用いた試験体の概要図である。FIG. 6 is a schematic diagram of a test body used for a shear bending experiment of a steel beam having an opening in a web.
【図７】図６の試験体による試験結果を示すグラフであ
る。7 is a graph showing the test results of the test body of FIG.
【図８】鋼梁の開口部近傍の変形性状の数値解析モデル
を示したもので、(a) はフランジの要素分割を示す図、
(b) はウェブの要素分割を示す図である。FIG. 8 shows a numerical analysis model of deformation properties near the opening of a steel beam, (a) is a diagram showing flange element division,
(b) is a figure which shows the element division of the web.
【図９】図８の数値解析モデルによる鋼梁破壊状態にお
ける変形を示す図である。9 is a diagram showing deformation in a steel beam fracture state by the numerical analysis model of FIG.
１…梁、２…ウェブ、３…フランジ、４…開口部、５…
ボルト、６…ルーズホール、１１…補剛部材、１２…ウ
ェブ、１３…フランジ、１４…開口部、１５…円筒部、
１６…補強リブ、１７…縦リブ、２１…補剛部材、1 ... Beam, 2 ... Web, 3 ... Flange, 4 ... Opening, 5 ...
Bolt, 6 ... Loose hole, 11 ... Stiffening member, 12 ... Web, 13 ... Flange, 14 ... Opening part, 15 ... Cylindrical part,
16 ... Reinforcing ribs, 17 ... Vertical ribs, 21 ... Stiffening members,
Claims (4)
ェブに開口部を設けた鋼梁の開口部補剛構造であって、
板要素からなり前記ウェブ及びフランジに面で接する補
剛部材を、鋼梁の前記開口部を挟む所定区間に添接し、
該補剛部材を前記フランジに実質的に止め付けることな
く、前記ウェブに対し止め付けてあることを特徴とする
鋼梁の開口部補剛構造。1. An opening stiffening structure of a steel beam having flanges on the upper and lower sides of the web, the opening being provided in the web,
A stiffening member made of a plate element and in contact with the web and the flange at a surface is abutted on a predetermined section sandwiching the opening of the steel beam,
An opening stiffening structure for a steel beam, wherein the stiffening member is fixed to the web without being substantially fixed to the flange.
鋼梁の上下フランジ内側面に当接し、ウェブが前記鋼梁
のウェブ面に当接する溝形断面部材からなり、前記鋼梁
の開口部に対応する位置に開口部を形成したものである
請求項１記載の鋼梁の開口部補剛構造。2. The stiffening member comprises a groove-shaped cross-section member in which upper and lower flanges abut on inner surfaces of the upper and lower flanges of the steel beam, and a web abuts on a web surface of the steel beam. An opening stiffening structure for a steel beam according to claim 1, wherein an opening is formed at a position corresponding to the portion.
下において、それぞれ前記鋼梁の上下フランジ内側面と
ウェブ上下端部との間の４隅に当接する４つの溝形断面
部材である請求項１記載の鋼梁の開口部補剛構造。3. The stiffening member has four groove-shaped cross-section members which come into contact with four corners between inner side surfaces of upper and lower flanges of the steel beam and upper and lower end portions of the web above and below the opening of the steel beam, respectively. The opening beam stiffening structure of the steel beam according to claim 1.
ーズホールに対するボルト接合により、面内方向のずれ
を許容する形で止め付けてある請求項１、２または３記
載の鋼梁の開口部補剛構造。4. The steel beam according to claim 1, 2 or 3, wherein the stiffening member is fixed to the web of the steel beam by bolting to a loose hole so as to allow in-plane displacement. Opening stiffening structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13949792A JPH05331964A (en) | 1992-05-29 | 1992-05-29 | Reinforcing structure for opening of steel beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13949792A JPH05331964A (en) | 1992-05-29 | 1992-05-29 | Reinforcing structure for opening of steel beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05331964A true JPH05331964A (en) | 1993-12-14 |
Family
ID=15246655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13949792A Pending JPH05331964A (en) | 1992-05-29 | 1992-05-29 | Reinforcing structure for opening of steel beam |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05331964A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007162244A (en) * | 2005-12-09 | 2007-06-28 | Okabe Co Ltd | Member and structure for reinforcing through-hole of steel beam |
| JP2013014957A (en) * | 2011-07-05 | 2013-01-24 | Takenaka Komuten Co Ltd | Steel perforated beam reinforcing structure |
| JP2014020163A (en) * | 2012-07-20 | 2014-02-03 | Hitachi Metals Techno Ltd | Beam reinforcing metallic material and beam reinforcing structure |
| CN103696535A (en) * | 2013-12-26 | 2014-04-02 | 南京工业大学 | Circular opening accessory with high utilization rate of corrugated web beam |
| JP2015081431A (en) * | 2013-10-22 | 2015-04-27 | 株式会社竹中工務店 | Reinforcement structure of steel perforated member |
| KR200477044Y1 (en) * | 2014-06-03 | 2015-05-04 | 삼성중공업 주식회사 | Reinforcement unit |
| JP2016211365A (en) * | 2015-04-30 | 2016-12-15 | 旭化成建材株式会社 | Metal fitting for beam reinforcement |
| JP2018016953A (en) * | 2016-07-25 | 2018-02-01 | 旭化成建材株式会社 | Beam reinforcement metal fitting |
| JP2018172892A (en) * | 2017-03-31 | 2018-11-08 | Ｊｆｅスチール株式会社 | Reinforcing structure of beam and reinforcing method of beam |
-
1992
- 1992-05-29 JP JP13949792A patent/JPH05331964A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007162244A (en) * | 2005-12-09 | 2007-06-28 | Okabe Co Ltd | Member and structure for reinforcing through-hole of steel beam |
| JP2013014957A (en) * | 2011-07-05 | 2013-01-24 | Takenaka Komuten Co Ltd | Steel perforated beam reinforcing structure |
| JP2014020163A (en) * | 2012-07-20 | 2014-02-03 | Hitachi Metals Techno Ltd | Beam reinforcing metallic material and beam reinforcing structure |
| JP2015081431A (en) * | 2013-10-22 | 2015-04-27 | 株式会社竹中工務店 | Reinforcement structure of steel perforated member |
| CN103696535A (en) * | 2013-12-26 | 2014-04-02 | 南京工业大学 | Circular opening accessory with high utilization rate of corrugated web beam |
| KR200477044Y1 (en) * | 2014-06-03 | 2015-05-04 | 삼성중공업 주식회사 | Reinforcement unit |
| JP2016211365A (en) * | 2015-04-30 | 2016-12-15 | 旭化成建材株式会社 | Metal fitting for beam reinforcement |
| JP2018016953A (en) * | 2016-07-25 | 2018-02-01 | 旭化成建材株式会社 | Beam reinforcement metal fitting |
| JP2021179172A (en) * | 2016-07-25 | 2021-11-18 | 旭化成建材株式会社 | Reinforcement structure |
| JP2018172892A (en) * | 2017-03-31 | 2018-11-08 | Ｊｆｅスチール株式会社 | Reinforcing structure of beam and reinforcing method of beam |
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