JPH07229204A - Buckling confined braking member - Google Patents
Buckling confined braking memberInfo
- Publication number
- JPH07229204A JPH07229204A JP4175394A JP4175394A JPH07229204A JP H07229204 A JPH07229204 A JP H07229204A JP 4175394 A JP4175394 A JP 4175394A JP 4175394 A JP4175394 A JP 4175394A JP H07229204 A JPH07229204 A JP H07229204A
- Authority
- JP
- Japan
- Prior art keywords
- axial force
- steel
- central axial
- force member
- section
- 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
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、建築物その他の構造物
において、地震力や風力等の水平力に抵抗させる構造要
素として使用する座屈拘束筋かい部材に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a buckling restraint bracing member used as a structural element for resisting horizontal forces such as seismic force and wind force in buildings and other structures.
【０００２】[0002]
【従来の技術】従来、座屈拘束筋かい部材としては、実
公平４−１９１２１号公報により公表されているものが
知られており、また構造物に対する座屈拘束筋かい部材
の取付例についても、種々の型式のものが提案されてい
る。2. Description of the Related Art Conventionally, as a buckling restraint bracing member, one disclosed in Japanese Utility Model Publication No. 4-19121 is known, and an example of attaching the buckling restraining bracing member to a structure is also known. , Various types have been proposed.
【０００３】[0003]
【発明が解決しようとする課題】前記従来の座屈拘束筋
かい部材の場合は、座屈拘束時における可変剛性および
可変降伏耐力筋かい部材を適当値に設定できないという
欠点がある。また、筋かい部材の断面性能は細長比によ
り決定されるので、筋かい部材による地震力負担率を調
整する自由度が少なく、そのため設計が繁雑になる。特
に保有耐力設計においては、柱，梁部材よりも耐震部材
である筋かい部材を先に降伏させるように構成すること
が望ましいが、前述の理由でこのような設計を行なうこ
とが極めて困難である。さらに圧縮力により筋かい部材
が降伏したのちの座屈性状については不明確であり、従
来の座屈拘束材では塑性座屈を防止することが困難であ
る。また従来の筋かい部材は振動減衰効果を期待するこ
とができない。また建築物の崩壊のメカニズムおよび振
動性状を制御するためには、筋かい部材の剛性および降
伏耐力（ヒステリシスカ−ブ）を自由にコントロールす
ることが必要であるが、そのような筋かい部材は、現存
しない。The conventional buckling restraint bracing members have the drawback that the variable rigidity and the variable yield strength bracing members cannot be set to appropriate values during buckling restraint. Further, since the cross-sectional performance of the brace members is determined by the slenderness ratio, there is little freedom to adjust the seismic force burden rate by the brace members, which complicates the design. Especially in the design of holding capacity, it is desirable that the bracing members, which are seismic resistant members, be surrendered earlier than the column and beam members, but it is extremely difficult to perform such a design for the reasons described above. . Further, the buckling behavior after the bracing member yields due to the compressive force is unclear, and it is difficult to prevent plastic buckling with the conventional buckling restraint material. Further, the conventional bracing member cannot be expected to have a vibration damping effect. Further, in order to control the mechanism of collapse of buildings and the vibration characteristics, it is necessary to freely control the rigidity and yield strength (hysteresis curve) of bracing members. , Extant.
【０００４】[0004]
【課題を解決するための手段】前述の課題を有利に解決
するために、本発明の座屈拘束筋かい部材においては、
小断面部材１の長手方向の両端部に大断面部材２を連設
して鋼製中心軸力部材３を構成し、前記大断面部材２に
おける小断面部材側の端部に、小断面部材１に対し鈍角
を形成する斜面４を設け、前記斜面４に変形吸収用弾性
材５を固定し、前記鋼製中心軸力部材３におけるコンク
リートに埋設される部分に付着防止被膜６を設け、前記
変形吸収用弾性材５および付着防止被膜６を設けた鋼製
中心軸力部材３における端部を除く部分を、鋼管７内に
挿通し、その鋼管７と変形吸収用弾性材５および付着防
止被膜６を有する鋼製中心軸力部材３との間に、コンク
リート８を充填する。In order to advantageously solve the above-mentioned problems, in the buckling restraint bracing member of the present invention,
The large cross-section members 2 are continuously provided at both ends of the small cross-section member 1 in the longitudinal direction to form a steel central axial force member 3, and the small cross-section member 1 is provided at the end of the large cross-section member 2 on the small cross-section member side. Is provided with an inclined surface 4 forming an obtuse angle, an elastic material 5 for deformation absorption is fixed to the inclined surface 4, and an adhesion prevention coating 6 is provided on a portion of the steel central axial force member 3 embedded in concrete. A portion of the steel central axial force member 3 provided with the absorbing elastic material 5 and the adhesion preventing coating 6 is inserted into the steel pipe 7, and the steel pipe 7 and the deformation absorbing elastic material 5 and the adhesion preventing coating 6 are inserted. Concrete 8 is filled between the steel central axial force member 3 and the steel central axial force member 3.
【０００５】[0005]
【実施例】図５ないし図９は本発明の第１実施例におい
て用いられる変形吸収用弾性材５および付着防止被膜６
を有する鋼製中心軸力部材３を示すものであって、平板
状の小断面部材１の長手方向の両端部に、十字状断面の
大断面部材２が連設され、かつ前記大断面部材２におけ
る小断面部材側の端部に、小断面部材１に対し鈍角を形
成する斜面４が設けられて、鋼製中心軸力部材３が構成
され、合成樹脂スポンジまたはゴムからなる変形吸収用
弾性材５が、前記斜面４に対し接着剤等により固定さ
れ、かつ鋼製中心軸力部材３におけるコンクリートに埋
設される部分に、型枠剥離剤，オイルペイント，アスフ
ァルト等からなる付着防止被膜６が塗布され、さらに大
断面部材２における小断面部材１と反対側の端部に、複
数のボルト挿通用透孔９が設けられている。5 to 9 show a deformation absorbing elastic material 5 and an adhesion preventive coating 6 used in the first embodiment of the present invention.
1 shows a steel central axial force member 3 having a large cross-section member 2 having a cross-shaped cross-section continuously connected to both ends of a flat plate-shaped small cross-section member 1 in the longitudinal direction. At the end of the small cross-section member side, a slope 4 that forms an obtuse angle with the small cross-section member 1 is provided to configure a steel central axial force member 3, and a deformation absorbing elastic material made of synthetic resin sponge or rubber. 5 is fixed to the slope 4 with an adhesive or the like, and an anti-adhesion coating 6 made of form remover, oil paint, asphalt or the like is applied to the portion of the steel central axial force member 3 embedded in concrete. Further, a plurality of bolt insertion through holes 9 are provided at the end of the large cross-section member 2 opposite to the small cross-section member 1.
【０００６】図１ないし図４は本発明の第１実施例に係
る座屈拘束筋かい部材を示すものであって、変形吸収用
弾性材５および付着防止被膜６を有する鋼製中心軸力部
材３における両端部を除く部分が、鋼管７内に挿通さ
れ、その鋼管７と、変形吸収用弾性材５および付着防止
被膜６を有する鋼製中心軸力部材３との間に、コンクリ
ート８が充填されて、座屈拘束筋かい部材１０が構成さ
れている。1 to 4 show a buckling restraint bracing member according to a first embodiment of the present invention, which is a steel central axial force member having a deformation absorbing elastic member 5 and an adhesion preventing coating 6. 3 except for both ends is inserted into the steel pipe 7, and the concrete 8 is filled between the steel pipe 7 and the steel central axial force member 3 having the elastic material 5 for absorbing deformation and the adhesion preventing coating 6. Thus, the buckling restraint bracing member 10 is configured.
【０００７】前記鋼製中心軸力部材３における大断面部
材２の部分の断面積をＡ1 、小断面部材１の部分の断面
積をＡ2 、小断面部材１の部分の長さをＬ2 、鋼製中心
軸力部材３の部分の長さをＬ1 とすると、座屈拘束筋か
い部材の剛性Ｒおよび降伏耐力Ｐy を次式で表わすこと
ができる。 Ｐy ＝σy ・Ａ2 Ｅ：ヤング係数 σy ：鋼の降伏応力度 前記式により、鋼の応力度に制限があっても、Ｒ，Ｐy
を自由に変化させることができるので、設計および振動
性状の観点からも非常に有利である。In the steel central axial force member 3, the cross sectional area of the large cross section member 2 is A 1 , the cross sectional area of the small cross section member 1 is A 2 , and the length of the small cross section member 1 is L 2. Assuming that the length of the steel central axial force member 3 is L 1 , the rigidity R and yield strength P y of the buckling restraint bracing member can be expressed by the following equations. P y = σ y A 2 E: Young's modulus σ y : Yield stress of steel Even if the stress of steel is limited by the above formula, R, P y
Can be changed freely, which is very advantageous from the viewpoint of design and vibration characteristics.
【０００８】図１０および図１１は本発明の第１実施例
に係る座屈拘束筋かい部材の使用状態を示すものであっ
て、鉄骨構造物における上下の梁１１に十字状の鋼製取
付金具１２が溶接により固着され、その鋼製取付金具１
２と前記鋼製中心軸力部材３の端部とは、鋼製継手板１
３およびボルト１４により連結されている。FIG. 10 and FIG. 11 show the usage state of the buckling restraint bracing member according to the first embodiment of the present invention, in which the upper and lower beams 11 of the steel frame structure are made of cross-shaped steel fittings. 12 is fixed by welding, and its steel mounting bracket 1
2 and the end of the steel central axial force member 3 are the steel joint plate 1
3 and a bolt 14.
【０００９】図１２ないし図１４は本発明の第２実施例
に係る座屈拘束筋かい部材を示すものであって、平板状
の小断面部材１と平板状の各大断面部材２とからなる鋼
製中心軸力部材３が用いられ、前記各大断面部材２にお
ける小断面部材側の端部に設けられた斜面４に変形吸収
用弾性材５が固着されているが、その他の構成は第１実
施例の場合と同様である。12 to 14 show a buckling restraint bracing member according to a second embodiment of the present invention, which is composed of a flat small cross-section member 1 and flat large cross-section members 2. The steel central axial force member 3 is used, and the deformation absorbing elastic material 5 is fixed to the slope 4 provided at the end of each large cross-section member 2 on the small cross-section member side. This is similar to the case of the first embodiment.
【００１０】図１５ないし図１７は本発明を実施する場
合に使用できる鋼製中心軸力部材３の他の例を示すもの
であって、Ｈ形鋼材からなる鋼製中心軸力部材３におけ
る各フランジ１７の長手方向の中間部に、台形の切欠部
１８が設けられて、鋼製中心軸力部材３の中間部に位置
する小断面部材１および斜面４と、大断面部材２とが設
けられている。FIGS. 15 to 17 show another example of the steel central axial force member 3 which can be used when the present invention is carried out. Each of the steel central axial force members 3 made of H-shaped steel is shown. A trapezoidal notch 18 is provided at an intermediate portion of the flange 17 in the longitudinal direction, and a small cross-section member 1 and a slope 4 located at an intermediate portion of the steel central axial force member 3 and a large cross-section member 2 are provided. ing.
【００１１】[0011]
【発明の効果】本発明によれば、小断面部材１の長手方
向の両端部に大断面部材２を連設して鋼製中心軸力部材
３を構成し、前記大断面部材２における小断面部材側の
端部に、小断面部材１に対し鈍角を形成する斜面４を設
け、前記斜面４に変形吸収用弾性材５を固定し、前記鋼
製中心軸力部材３におけるコンクリートに埋設される部
分に付着防止被膜６を設け、前記変形吸収用弾性材５お
よび付着防止被膜６を設けた鋼製中心軸力部材３におけ
る端部を除く部分を、鋼管７内に挿通し、その鋼管７と
変形吸収用弾性材５および付着防止被膜６を有する鋼製
中心軸力部材３との間に、コンクリート８を充填したの
で、座屈拘束筋かい部材の可変剛性および可変降伏耐力
を任意に設定することができ、かつ前記斜面４は小断面
部材１に対し鈍角を形成しているので、小断面部材１と
大断面部材２の間の断面積は徐々に変化し、そのため応
力の流れをよくすることができる。According to the present invention, the steel central axial force member 3 is formed by connecting the large cross-section members 2 to both ends of the small cross-section member 1 in the longitudinal direction. A slope 4 that forms an obtuse angle with the small-section member 1 is provided at the end on the member side, and a deformation absorbing elastic material 5 is fixed to the slope 4 and is embedded in concrete in the steel central axial force member 3. A portion of the steel central axial force member 3 provided with the adhesion preventing coating 6 and the deformation absorbing elastic material 5 and the attachment preventing coating 6 is inserted into the steel pipe 7 and Since the concrete 8 is filled between the deformation absorbing elastic material 5 and the steel central axial force member 3 having the adhesion preventing coating 6, the variable rigidity and the variable yield strength of the buckling restraint bracing member are arbitrarily set. And the slope 4 has an obtuse angle with respect to the small cross-section member 1. Since the formation, the cross-sectional area between the small section member 1 and the large cross-section member 2 is gradually changed, it is possible to improve the flow of the stress.
【図１】本発明の第１実施例に係る座屈拘束筋かい部材
を示す側面図である。FIG. 1 is a side view showing a buckling restraint bracing member according to a first embodiment of the present invention.
【図２】本発明の第１実施例に係る座屈拘束筋かい部材
を示す正面図である。FIG. 2 is a front view showing a buckling restraint bracing member according to the first embodiment of the present invention.
【図３】図１のＡ−Ａ線拡大断面図である。FIG. 3 is an enlarged cross-sectional view taken along the line AA of FIG.
【図４】図１のＢ−Ｂ線拡大断面図である。FIG. 4 is an enlarged sectional view taken along line BB of FIG.
【図５】本発明の第１実施例において用いられる変形吸
収用弾性材付き鋼製中心軸力部材を示す側面図である。FIG. 5 is a side view showing a steel central axial force member with an elastic material for deformation absorption used in the first embodiment of the present invention.
【図６】図５に示す鋼製中心軸力部材を示す正面図であ
る。6 is a front view showing the steel central axial force member shown in FIG. 5. FIG.
【図７】図５の中間部を拡大して示す側面図である。FIG. 7 is a side view showing an intermediate portion of FIG. 5 in an enlarged manner.
【図８】図７のＣ−Ｃ線拡大断面図である。8 is an enlarged cross-sectional view taken along the line CC of FIG.
【図９】図７のＤ−Ｄ線拡大断面図である。9 is an enlarged cross-sectional view taken along line DD of FIG.
【図１０】座屈拘束筋かい部材使用状態を示す側面図で
ある。FIG. 10 is a side view showing a state where the buckling restraint bracing member is used.
【図１１】図１０の一部を拡大して示す側面図である。FIG. 11 is a side view showing a part of FIG. 10 in an enlarged manner.
【図１２】本発明の第２実施例に係る座屈拘束筋かい部
材を示す側面図である。FIG. 12 is a side view showing a buckling restraint bracing member according to a second embodiment of the present invention.
【図１３】図１２のＥ−Ｅ線拡大断面図である。13 is an enlarged cross-sectional view taken along the line EE of FIG.
【図１４】図１２のＦ−Ｆ線拡大断面図である。14 is an enlarged cross-sectional view taken along line FF of FIG.
【図１５】本発明の実施例において使用できる鋼製中心
軸力部材の他の例を示す側面図である。FIG. 15 is a side view showing another example of the steel central axial force member that can be used in the embodiment of the present invention.
【図１６】図１５のＧ−Ｇ線拡大断面図である。16 is an enlarged cross-sectional view taken along line GG of FIG.
【図１７】図１６のＨ−Ｈ線拡大断面図である。17 is an enlarged sectional view taken along line HH of FIG.
１ 小断面部材 ２ 大断面部材 ３ 鋼製中心軸力部材 ４ 斜面 ５ 変形吸収用弾性材 ６ 付着防止被膜 ７ 鋼管 ８ コンクリート ９ ボルト挿通用透孔 １０ 座屈拘束筋かい部材 １１ 梁 １２ 鋼製取付金具 １３ 鋼製継手板 １４ ボルト １５ 平板部 １６ リブプレート １７ フランジ １８ 切欠部 1 Small cross section member 2 Large cross section member 3 Steel central axial force member 4 Slope 5 Elastic material for deformation absorption 6 Anti-adhesion coating 7 Steel pipe 8 Concrete 9 Bolt insertion through hole 10 Buckling restraint bracing member 11 Beam 12 Steel mounting Metal fittings 13 Steel joint plate 14 Bolts 15 Flat plate portion 16 Rib plate 17 Flange 18 Notch portion
Claims (1)
面部材２を連設して鋼製中心軸力部材３を構成し、前記
大断面部材２における小断面部材側の端部に、小断面部
材１に対し鈍角を形成する斜面４を設け、前記斜面４に
変形吸収用弾性材５を固定し、前記鋼製中心軸力部材３
におけるコンクリートに埋設される部分に付着防止被膜
６を設け、前記変形吸収用弾性材５および付着防止被膜
６を設けた鋼製中心軸力部材３における端部を除く部分
を、鋼管７内に挿通し、その鋼管７と変形吸収用弾性材
５および付着防止被膜６を有する鋼製中心軸力部材３と
の間に、コンクリート８を充填した座屈拘束筋かい部
材。1. A steel central axial force member 3 is formed by continuously connecting a large cross-section member 2 to both ends of a small cross-section member 1 in the longitudinal direction, and an end portion of the large cross-section member 2 on the small cross-section member side. The inclined surface 4 forming an obtuse angle with respect to the small cross-section member 1 is provided, and the deformation absorbing elastic material 5 is fixed to the inclined surface 4, and the steel central axial force member 3 is provided.
Of the steel central axial force member 3 provided with the anti-adhesion coating 6 on the portion embedded in the concrete, and the elastic material 5 for deformation absorption and the anti-adhesion coating 6 are inserted into the steel pipe 7. Then, a buckling restraint bracing member in which concrete 8 is filled between the steel pipe 7 and the steel central axial force member 3 having the deformation absorbing elastic material 5 and the adhesion preventing coating 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4175394A JPH07229204A (en) | 1994-02-17 | 1994-02-17 | Buckling confined braking member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4175394A JPH07229204A (en) | 1994-02-17 | 1994-02-17 | Buckling confined braking member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07229204A true JPH07229204A (en) | 1995-08-29 |
Family
ID=12617190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4175394A Pending JPH07229204A (en) | 1994-02-17 | 1994-02-17 | Buckling confined braking member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07229204A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004057126A1 (en) * | 2002-12-20 | 2004-07-08 | Shuangbian Cao | Composite panel with support and the manufacture thereof |
| US6826874B2 (en) | 1999-06-30 | 2004-12-07 | Nippon Steel Corporation | Buckling restrained braces and damping steel structures |
| US7174680B2 (en) | 2002-05-29 | 2007-02-13 | Sme Steel Contractors, Inc. | Bearing brace apparatus |
| US7185462B1 (en) | 2003-07-25 | 2007-03-06 | Sme Steel Contractors, Inc. | Double core brace |
| US7225588B2 (en) | 2003-07-08 | 2007-06-05 | Nippon Steel Corporation | Damping brace and structure |
| US7305799B2 (en) | 2002-05-29 | 2007-12-11 | Sme Steel Contractors, Inc. | Bearing brace apparatus |
| JP2010025260A (en) * | 2008-07-22 | 2010-02-04 | Tokyo Institute Of Technology | Damper device and structure |
| JP2013112949A (en) * | 2011-11-25 | 2013-06-10 | Jfe Steel Corp | Brace member |
| JP2014047546A (en) * | 2012-08-31 | 2014-03-17 | Takenaka Komuten Co Ltd | Damper |
| CN105369934A (en) * | 2015-11-26 | 2016-03-02 | 沈阳建筑大学 | Linear all-steel buckling constraint support |
| CN106088383A (en) * | 2016-08-09 | 2016-11-09 | 东南大学 | A kind of longitudinally weakening buckling-restrained energy-dissipating device of circular rod type |
-
1994
- 1994-02-17 JP JP4175394A patent/JPH07229204A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6826874B2 (en) | 1999-06-30 | 2004-12-07 | Nippon Steel Corporation | Buckling restrained braces and damping steel structures |
| US7231743B2 (en) | 1999-06-30 | 2007-06-19 | Nippon Steel Corporation | Buckling restrained braces and damping steel structures |
| US7762026B2 (en) | 2002-05-29 | 2010-07-27 | Sme Steel Contractors, Inc. | Bearing brace apparatus |
| US7174680B2 (en) | 2002-05-29 | 2007-02-13 | Sme Steel Contractors, Inc. | Bearing brace apparatus |
| US7284358B2 (en) | 2002-05-29 | 2007-10-23 | Sme Steel Contractors, Inc. | Methods of manufacturing bearing brace apparatus |
| US7305799B2 (en) | 2002-05-29 | 2007-12-11 | Sme Steel Contractors, Inc. | Bearing brace apparatus |
| US7716882B2 (en) | 2002-05-29 | 2010-05-18 | Sme Steel Contractors, Inc. | Bearing brace apparatus |
| WO2004057126A1 (en) * | 2002-12-20 | 2004-07-08 | Shuangbian Cao | Composite panel with support and the manufacture thereof |
| US7225588B2 (en) | 2003-07-08 | 2007-06-05 | Nippon Steel Corporation | Damping brace and structure |
| US7185462B1 (en) | 2003-07-25 | 2007-03-06 | Sme Steel Contractors, Inc. | Double core brace |
| JP2010025260A (en) * | 2008-07-22 | 2010-02-04 | Tokyo Institute Of Technology | Damper device and structure |
| JP2013112949A (en) * | 2011-11-25 | 2013-06-10 | Jfe Steel Corp | Brace member |
| JP2014047546A (en) * | 2012-08-31 | 2014-03-17 | Takenaka Komuten Co Ltd | Damper |
| CN105369934A (en) * | 2015-11-26 | 2016-03-02 | 沈阳建筑大学 | Linear all-steel buckling constraint support |
| CN106088383A (en) * | 2016-08-09 | 2016-11-09 | 东南大学 | A kind of longitudinally weakening buckling-restrained energy-dissipating device of circular rod type |
| CN106088383B (en) * | 2016-08-09 | 2019-01-25 | 东南大学 | A kind of longitudinal weakening buckling-restrained energy-consuming device of circular rod type |
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