JP2696460B2 - Seismic steel structure - Google Patents
Seismic steel structureInfo
- Publication number
- JP2696460B2 JP2696460B2 JP4231505A JP23150592A JP2696460B2 JP 2696460 B2 JP2696460 B2 JP 2696460B2 JP 4231505 A JP4231505 A JP 4231505A JP 23150592 A JP23150592 A JP 23150592A JP 2696460 B2 JP2696460 B2 JP 2696460B2
- Authority
- JP
- Japan
- Prior art keywords
- steel
- yield point
- buckling restrained
- restrained brace
- 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.)
- Expired - Lifetime
Links
Landscapes
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、高降伏点鋼材製柱と高
降伏点鋼材製梁と座屈拘束ブレースとを備えている耐震
鉄骨構造物に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an earthquake-resistant steel structure having a high yield point steel column, a high yield point steel beam, and a buckling restrained brace.
【０００２】[0002]
【従来の技術】従来、鉄骨構造物としては、実開昭６３
−１０１６０３号公報により公表されているように、普
通鋼材からなる鋼製柱および鋼製梁を有する鉄骨構造物
に、座屈拘束ブレースを架設した構造のものが知られて
いる。2. Description of the Related Art Conventionally, as a steel frame structure, Japanese Utility Model Laid-Open No. 63
As disclosed in Japanese Patent Application Laid-Open No.-101603, there is known a structure in which a buckling restrained brace is installed on a steel structure having steel columns and steel beams made of ordinary steel.
【０００３】[0003]
【発明が解決しようとする課題】前記従来の鉄骨構造物
の場合は、大地震が発生したとき、鋼製柱および鋼製梁
が永久変形を起こし、鉄骨構造物を再使用できなくなる
恐れがある。また鋼製梁の端部で鉄骨構造物の塑性化を
先行させる手段も採用されているが、しかし、鋼製梁お
よび鋼製柱は、常時、建物の全重量を支えるという重要
な部材であるので、大地震時における鋼製梁の端部の塑
性化は、大地震後に鉄骨構造物に残留変形をもたらし、
そのため鉄骨構造物の再使用を不可能にする。In the case of the above-mentioned conventional steel structure, when a large earthquake occurs, the steel columns and the steel beams may be permanently deformed and the steel structure may not be reused. . Means that precede plasticization of steel structures at the ends of steel beams have also been adopted, but steel beams and columns are important members that always support the entire weight of the building. Therefore, the plasticization of the end of the steel beam during a large earthquake causes residual deformation of the steel structure after the large earthquake,
Therefore, it is impossible to reuse the steel structure.
【０００４】[0004]
【課題を解決するための手段】前述の問題を有利に解決
するために、本発明の耐震鉄骨構造物においては、鋼管
１とその内部に配置された降伏点１０〜２０ｋｇ／ｍｍ
２ の低降伏点鋼材２との間にコンクリート３を充填し
て、座屈拘束ブレース４を構成し、その座屈拘束ブレー
ス４を、当該低降伏点鋼材２より高降伏点を有する鋼材
製柱５及び鋼材製梁６からなる鉄骨構造物７に架設す
る。In order to advantageously solve the above-mentioned problems, in an earthquake-resistant steel frame structure according to the present invention, a steel pipe 1 and a yield point 10 to 20 kg / mm disposed inside the steel pipe 1 are provided.
2 is filled with concrete 3 between the low yield point steel 2 and a buckling restrained brace 4, and the buckling restrained brace 4 is formed of a steel column having a higher yield point than the low yield point steel 2. 5 and a steel structure 7 composed of steel beams 6.
【０００５】[0005]
【実施例】図４ないし図８は本発明の実施例において用
いられる座屈拘束ブレース４を示すものであって、帯板
状の低降伏点鋼材２が４角形断面の鋼管１内に挿通さ
れ、かつ前記低降伏点鋼材２の両端部における巾方向中
央の両面に、低降伏点鋼材２の端部の塑性座屈を防止す
るための鋼製補強用リブプレート８が溶接により固着さ
れ、そのリブプレート８における低降伏点鋼材中央側の
端面に、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９が接着剤等により固定され、前記低降伏点鋼
材２とその低降伏点鋼材２の長手方向の一端部に固定さ
れた前記リブプレート８とにおける鋼管１内に位置する
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１０が塗布形成され、前記鋼管１
内にコンクリート３が充填され、前記低降伏点鋼材２と
前記コンクリート３と前記鋼管１とにより、制振用座屈
拘束ブレース４が構成されている。4 to 8 show a buckling restrained brace 4 used in an embodiment of the present invention. A strip-shaped low-yield point steel material 2 is inserted into a steel pipe 1 having a square cross section. A steel reinforcing rib plate 8 for preventing plastic buckling of the end of the low-yield point steel material 2 is fixed to both ends of the widthwise center of both ends of the low-yield point steel material 2 by welding. A deformation absorbing elastic material 9 made of synthetic resin sponge or rubber is fixed to an end face of the rib plate 8 on the center side of the low yield point steel material by an adhesive or the like, and the low yield point steel material 2 and the longitudinal direction of the low yield point steel material 2 are fixed. An anti-adhesion coating 10 made of a mold release agent, oil paint, asphalt, or the like is applied and formed on a portion of the rib plate 8 fixed to one end in the direction and located in the steel pipe 1.
The low yield point steel material 2, the concrete 3, and the steel pipe 1 constitute a buckling restrained brace 4 for damping vibration.
【０００６】図１ないし図３は前記座屈拘束ブレース４
を使用した耐震鉄骨構造物を示すものであって、鉄骨構
造物７の骨組が高降伏点鋼材製柱５と高降伏点鋼材製梁
６とにより構成され、前記鉄骨構造物７における各高降
伏点鋼材製梁６に十字状の鋼製取付金具１１が溶接によ
り固着され、その取付金具１１と、座屈拘束ブレース４
における低降伏点鋼材２の端部およびリブプレート８と
は、鋼製継手板１２およびボルト１３により連結されて
いる。FIGS. 1 to 3 show the buckling restrained brace 4.
Fig. 1 shows an earthquake-resistant steel structure using a steel structure, wherein a frame of the steel structure 7 is composed of a high yield point steel material column 5 and a high yield point steel material beam 6, and each high yield in the steel structure 7 A cross-shaped steel mounting bracket 11 is fixed to the point steel beam 6 by welding, and the mounting bracket 11 and the buckling restrained brace 4 are fixed.
The end of the low yield point steel material 2 and the rib plate 8 are connected by a steel joint plate 12 and bolts 13.
【０００７】図９および図１０は前記鉄骨構造物７に対
する座屈拘束ブレース４の配置例を示している。FIGS. 9 and 10 show examples of the arrangement of the buckling restrained brace 4 with respect to the steel structure 7. FIG.
【０００８】本発明を実施する場合、低降伏点鋼材とし
ては１０〜２０ｋｇ／ｍｍ２のものを使用し、高降伏点
鋼材としてはＪＩＳ Ｇ３１０６に定める引張強度４１
〜７３ｋｇ／ｍｍ ２ の鋼材を使用する。In practicing the present invention, a low-yield point steel material having a strength of 10 to 20 kg / mm 2 is used, and a high-yield point steel material has a tensile strength 41 specified in JIS G3106.
A steel material of 73 kg / mm 2 is used.
【０００９】[0009]
【発明の効果】本発明によれば、鋼管１とその内部に配
置された低降伏点鋼材２との間にコンクリート３を充填
して、座屈拘束ブレース４を構成し、その制振用座屈拘
束ブレース４を、高降伏点鋼材製柱５および高降伏点鋼
材製梁６からなる鉄骨構造物７に架設したので、大地震
が発生したとき、座屈拘束ブレースが安定した弾塑性の
挙動を示すことで地震エネルギーを吸収することができ
ると共に、高降伏点鋼材製柱５および高降伏点鋼材製梁
６が永久変形するのを防止することができ、そのため大
地震後においても、必要に応じて座屈拘束ブレース４を
交換するだけで、耐震鉄骨構造物を再使用することがで
きる。According to the present invention, a concrete 3 is filled between a steel pipe 1 and a low yield point steel material 2 disposed inside the steel pipe 1 to form a buckling restrained brace 4. Since the buckling-restrained brace 4 is installed on the steel structure 7 composed of the high-yield-point steel columns 5 and the high-yield-point steel beams 6, when the large earthquake occurs, the buckling-restrained braces have a stable elasto-plastic behavior. In addition to absorbing seismic energy, it is possible to prevent the high-yield point steel columns 5 and the high-yield point steel beams 6 from being permanently deformed. By simply replacing the buckling restrained brace 4 accordingly, the earthquake-resistant steel structure can be reused.
【図１】本発明の実施例に係る耐震鉄骨構造物の一部を
示す側面図である。FIG. 1 is a side view showing a part of an earthquake-resistant steel frame structure according to an embodiment of the present invention.
【図２】図１の一部を拡大して示す側面図である。FIG. 2 is an enlarged side view showing a part of FIG. 1;
【図３】座屈拘束ブレースの端部の取付状態を示す一部
縦断正面図である。FIG. 3 is a partially longitudinal front view showing an attached state of an end of a buckling restrained brace.
【図４】座屈拘束ブレースの側面図である。FIG. 4 is a side view of a buckling restrained brace.
【図５】座屈拘束ブレースの正面図である。FIG. 5 is a front view of a buckling restrained brace.
【図６】図４のＡ−Ａ線断面図である。FIG. 6 is a sectional view taken along line AA of FIG. 4;
【図７】図４のＢ−Ｂ線断面図である。FIG. 7 is a sectional view taken along line BB of FIG. 4;
【図８】図７のＣ−Ｃ線断面図である。FIG. 8 is a sectional view taken along line CC of FIG. 7;
【図９】鉄骨構造物に対する座屈拘束ブレースの配置例
を示す概略側面図である。FIG. 9 is a schematic side view showing an example of the arrangement of buckling restrained braces with respect to a steel structure.
【図１０】鉄骨構造物に対する座屈拘束ブレースの配置
例を示す概略側面図である。FIG. 10 is a schematic side view showing an example of the arrangement of buckling restrained braces with respect to a steel structure.
１ 鋼管 ２ 低降伏点鋼材 ３ コンクリート ４ 座屈拘束ブレース ５ 高降伏点鋼材製柱 ６ 高降伏点鋼材製梁 ７ 鉄骨構造物 ８ リブプレート ９ 変形吸収用弾性材 １０ 付着防止被膜 １１ 鋼製取付金具 １２ 鋼製継手板 １３ ボルト DESCRIPTION OF SYMBOLS 1 Steel pipe 2 Low yield point steel 3 Concrete 4 Buckling restrained brace 5 High yield point steel column 6 High yield point steel beam 7 Steel structure 8 Rib plate 9 Deformation absorbing elastic material 10 Adhesion prevention coating 11 Steel mounting bracket 12 Steel joint plate 13 Bolt
───────────────────────────────────────────────────── フロントページの続き (72)発明者 和田 章 神奈川県横浜市緑区長津田4259 東京工 業大学内 (56)参考文献 実公 平４−19121（ＪＰ，Ｙ２) ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Akira Wada 4259 Nagatsuda, Midori-ku, Yokohama-shi, Kanagawa Pref.
Claims (1)
０〜２０ｋｇ／ｍｍ ２ の低降伏点鋼材２との間にコンク
リート３を充填して、座屈拘束ブレース４を構成し、そ
の座屈拘束ブレース４を、当該低降伏点鋼材２より高降
伏点を有する鋼材製柱５及び鋼材製梁６からなる鉄骨構
造物７に架設した耐震鉄骨構造物。1. A steel pipe 1 and a yield point 1 disposed therein.
Concrete 3 is filled between the steel material 2 having a low yield point of 0 to 20 kg / mm 2 to constitute a buckling restrained brace 4, and the buckling restrained brace 4 has a higher yield point than the low yield point steel material 2. An earthquake-resistant steel structure constructed on a steel structure 7 composed of a steel column 5 and a steel beam 6 having the following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4231505A JP2696460B2 (en) | 1992-08-07 | 1992-08-07 | Seismic steel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4231505A JP2696460B2 (en) | 1992-08-07 | 1992-08-07 | Seismic steel structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0657820A JPH0657820A (en) | 1994-03-01 |
| JP2696460B2 true JP2696460B2 (en) | 1998-01-14 |
Family
ID=16924549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4231505A Expired - Lifetime JP2696460B2 (en) | 1992-08-07 | 1992-08-07 | Seismic steel structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2696460B2 (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4430818C2 (en) * | 1994-08-30 | 1998-04-16 | Hoffmann Sonax Kg | Care emulsion for automatic vehicle washes |
| JP2002338018A (en) * | 2001-05-11 | 2002-11-27 | Nippon Steel Corp | Automatic high-rise warehouse |
| JP2008013957A (en) * | 2006-07-04 | 2008-01-24 | Fujita Corp | Seismic strengthening structure of steel structure |
| JP5176195B2 (en) * | 2006-11-02 | 2013-04-03 | 学校法人神奈川大学 | Building facade |
| TWI499707B (en) * | 2012-05-15 | 2015-09-11 | Univ Nat Taiwan Science Tech | A joint structure which lateral deformation is restrained |
| CN104246095B (en) * | 2013-04-08 | 2017-03-15 | 新日铁住金工程技术株式会社 | The anti-buckling carrying structure for supporting and possessing the anti-buckling support |
| JP6196065B2 (en) * | 2013-04-26 | 2017-09-13 | 株式会社フジタ | Buckling restraint brace |
| JP6440942B2 (en) * | 2014-01-28 | 2018-12-19 | 大和ハウス工業株式会社 | Bearing wall structure using braces of steel building |
| CN105507442A (en) * | 2015-12-02 | 2016-04-20 | 同济大学 | Fishbone-shaped full-steel buckling-restrained brace |
| CN106368484A (en) * | 2016-10-31 | 2017-02-01 | 常州工学院 | Low-cost anti-buckling support |
| JP6311047B2 (en) * | 2017-03-16 | 2018-04-11 | 株式会社フジタ | Buckling restraint brace |
| JP7021311B1 (en) * | 2020-08-28 | 2022-02-16 | Ｊｆｅシビル株式会社 | Building structure and construction method of building structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2527108Y2 (en) * | 1990-06-06 | 1997-02-26 | ヤンマー農機株式会社 | Planting arm in rush transplanter |
-
1992
- 1992-08-07 JP JP4231505A patent/JP2696460B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0657820A (en) | 1994-03-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19970819 |