JP2726003B2 - Damping device for steel beams - Google Patents
Damping device for steel beamsInfo
- Publication number
- JP2726003B2 JP2726003B2 JP6128619A JP12861994A JP2726003B2 JP 2726003 B2 JP2726003 B2 JP 2726003B2 JP 6128619 A JP6128619 A JP 6128619A JP 12861994 A JP12861994 A JP 12861994A JP 2726003 B2 JP2726003 B2 JP 2726003B2
- Authority
- JP
- Japan
- Prior art keywords
- vibration damping
- steel
- yield point
- low yield
- damping device
- 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 - Fee Related
Links
Landscapes
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Rod-Shaped Construction Members (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、建物の鉄骨梁の端部に
設ける制振装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration damping device provided at an end of a steel beam of a building.
【０００２】[0002]
【従来の技術】従来、建物の制振装置として、図１０乃
至図１１に示すように、鉄骨梁２の端部に、低降伏点鋼
材１０を溶着したものが知られている。2. Description of the Related Art Conventionally, as a vibration damping device for a building, a device in which a low yield point steel material 10 is welded to an end of a steel beam 2 as shown in FIGS.
【０００３】この制振装置は、主架構である鉄骨梁２の
端部に設けるもので特別なスペースを必要とせず、ま
た、メンテナンスも非常に簡単である。[0003] This vibration damping device is provided at the end of the steel beam 2 which is the main frame, does not require any special space, and is very easy to maintain.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上述の
制振装置においては、例えば、プレート状の低降伏点鋼
材１０の全縁部を鉄骨梁２の端部において溶接手段で固
着しているので、その溶接作業において長時間に亘り鉄
骨梁に高熱を与えることになり、最も変形力を負担する
前記鉄骨梁２の端部に品質の劣化をもたらし好ましくな
い。また、低降伏点鋼材１０のプレート形状も梁材の要
求性能により個々に形成するので、部材の標準化が図れ
ずにコストが嵩むことになる。However, in the above-described vibration damping device, for example, the entire edge of the plate-like low yield point steel material 10 is fixed to the end of the steel beam 2 by welding means. In the welding operation, high heat is applied to the steel beam for a long time, which undesirably deteriorates the quality of the end of the steel beam 2 which bears the most deformation force. Further, since the plate shape of the low yield point steel material 10 is individually formed according to the required performance of the beam material, standardization of the members cannot be achieved and the cost increases.
【０００５】更に、鉄骨梁２の端部には、図１１に示す
ように、梁天端側に床スラブとの一体化を図るスタッド
ボルト１２等が植設されており、このスタッドボルト１
２と前記プレート状の低降伏点鋼材１０との取り合いの
処置が必要となり、手間が掛かり工期も長くなる、と言
う問題点があった。Further, at the end of the steel beam 2, as shown in FIG. 11, a stud bolt 12 or the like for integrating with a floor slab is planted at the top end of the beam.
2 and the plate-like low-yield-point steel material 10 must be treated, and there is a problem that it is troublesome and the construction period is long.
【０００６】このように、従来の制振装置においては、
品質や施工性の点において解決すべき課題を有してい
た。本発明は、上記の課題に鑑みてなされたもので、施
工性およびコストの軽減を図ることを目的とする。As described above, in the conventional vibration damping device,
There were issues to be solved in terms of quality and workability. The present invention has been made in view of the above problems, and has as its object to reduce workability and cost.
【０００７】[0007]
【課題を解決するための手段】本発明の上記課題を解決
し上記目的を達成するための要旨は、鉄骨梁の端部に、
低降伏点鋼材と該低降伏点鋼材の外側に遊嵌状態で嵌装
され低降伏点鋼材の座屈を拘束するパイプと該低降伏点
鋼材の長手方向の両端に設ける取付用治具とをユニット
化させてなるユニット型制振部材を、着脱自在に固定し
てなる鉄骨梁における制振装置である。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems of the present invention and to achieve the above-mentioned object, the gist of the present invention is to provide an end of a steel beam,
Low yield point steel material and loosely fitted to the outside of the low yield point steel material
Pipe which restrains buckling of the low yield point steel and the low yield point
Unit with mounting jigs provided at both ends in the longitudinal direction of steel
The unit type damping member made by reduction, detachably fixed
This is a vibration damper for steel beams .
【０００８】[0008]
【０００９】[0009]
【作用】本発明の制振装置によれば、低降伏点鋼材をユ
ニット化したユニット型制振部材にするとともに、該ユ
ニット型制振部材を着脱自在にしたことにより、梁の端
部にボルト等で緊結できるようになる。よって、前記ユ
ニット型制振部材を容易に交換できるようになる。 According to the vibration damping device of the present invention, a low yield point steel material is unitized to form a unit type vibration damping member,
By making the knit type vibration damping member detachable , it becomes possible to tighten the end of the beam with a bolt or the like. Therefore,
The knit type vibration damping member can be easily replaced.
【００１０】[0010]
【００１１】[0011]
【実施例】次に、本発明に係る実施例について図面を参
照して詳細に説明する。本発明の第１実施例は、図１に
示すように、建物の柱１と鉄骨梁２との接合部におい
て、前記鉄骨梁２の端部に、ユニット型制振部材３を固
定したものである。Next, an embodiment according to the present invention will be described in detail with reference to the drawings. In the first embodiment of the present invention, as shown in FIG. 1, a unit type vibration damping member 3 is fixed to an end of the steel beam 2 at a joint between the column 1 of the building and the steel beam 2. is there.
【００１２】前記ユニット型制振部材３は、図２に示す
ように、低降伏点鋼材の丸鋼材４を所定長さで切断し、
その両端部を拡径にし、該丸鋼材４の中央部分に二つ割
りの部材を挟んでボルト・ナットで締結される鉄パイプ
５を嵌装させる。そして、前記丸鋼材４の両端をＬ字型
の取付用治具６，７の中央部の嵌合孔に嵌合させて溶接
し、一体化させたものである。As shown in FIG. 2, the unit type vibration damping member 3 cuts a round steel material 4 of a low yield point steel material at a predetermined length.
The diameter of both ends is increased, and an iron pipe 5 fastened with bolts and nuts is fitted in the center of the round steel material 4 with a split member interposed therebetween. Then, both ends of the round steel material 4 are fitted into fitting holes at the center of the L-shaped mounting jigs 6, 7 and welded to be integrated.
【００１３】前記丸鋼材４と鉄パイプ５とは、遊嵌状態
であってその間隙にはグリースを介在させた関係にした
アンボンド型である。また、前記鉄パイプ５の長さは、
前記丸鋼材４の中央部分の長さに合わせた適宜な長さと
なっている。The round steel member 4 and the iron pipe 5 are of an unbonded type in a loosely fitted state in which a grease is interposed in a gap therebetween. The length of the iron pipe 5 is
It has an appropriate length according to the length of the central portion of the round steel material 4.
【００１４】前記鉄パイプ５は、鉄骨梁２の圧縮時にお
いて、低降伏点鋼材である丸鋼材４が座屈しないよう
に、当該丸鋼材４の長手方向の座屈を拘束しているもの
である。The iron pipe 5 restrains the buckling of the round steel 4 in the longitudinal direction so that the round steel 4 which is a low yield point steel does not buckle when the steel beam 2 is compressed. is there.
【００１５】このように形成したユニット型制振部材３
を、前記鉄骨梁２の端部において、図３乃至図４に示す
ように、ボルト・ナットで締結して着脱自在に鉄骨梁２
に固定する。The unit type vibration damping member 3 thus formed
At the end of the steel beam 2, as shown in FIGS. 3 and 4, the steel beam 2 is removably fastened by bolts and nuts.
Fixed to
【００１６】この場合において、図３に示す場合は、ユ
ニット型制振部材３の片側を柱１に当接させたもので、
曲げ耐力を見込む場合の使用状態であり、図４に示す場
合は、曲げ耐力を見込まない場合の使用状態である。In this case, in the case shown in FIG. 3, one side of the unit-type vibration damping member 3 is brought into contact with the column 1, and
This is a use state in which bending strength is expected, and the case shown in FIG. 4 is a usage state in which bending strength is not expected.
【００１７】次に、図６乃至図８に示す他の実施例は、
同一径の丸鋼材を複数種類の長さに標準化した丸鋼材
８，９として、これを鉄骨梁２に固着して制振作用を持
たせる場合の性能に応じて、所要数の前記丸鋼材８，９
を鉄骨梁２の上下端面に溶接したものである。Next, another embodiment shown in FIGS.
A required number of the round steel materials 8 and 9 having the same diameter as the round steel materials 8 and 9 which are standardized to a plurality of types of lengths are provided depending on the performance when the steel bars 2 are fixed to the steel beam 2 to have a vibration damping action. , 9
Are welded to the upper and lower end surfaces of the steel beam 2.
【００１８】前記丸鋼材８，９は、所定長さに予め切断
しておき、これを現場に搬入して使用すればよいので運
搬作業も容易であり、また、建設現場にて切断加工する
こともできて作業性が良いものである。The round steel materials 8 and 9 are cut in advance to a predetermined length, and can be transported to the site for use. Therefore, the work is easy to carry. It has good workability.
【００１９】更に、鉄骨梁２に溶接する際にも、梁天端
のスタッドボルト等を避けて設置することも容易であ
り、設置の自由度も高いものである。Furthermore, when welding to the steel beam 2, it is easy to install the steel beam avoiding stud bolts at the top end of the beam, and the degree of freedom of installation is high.
【００２０】前記丸鋼材８，９を鉄骨梁２に溶接するの
で、建設現場に置いて溶接作業を伴うことになるが、丸
鋼材なので点溶接する等で部分的な溶接で済み鉄骨梁２
に熱的な悪影響を与えることもない。また、柱１，１間
に鉄骨梁２を架構した後に、前記丸鋼材を前記鉄骨梁２
に後加工ができるので施工性が向上するものである。Since the round steel members 8 and 9 are welded to the steel beam 2, welding work is required at the construction site. However, since the round steel material is partially welded by spot welding, the steel beam 2 is completed.
It does not adversely affect the heat. After the steel beam 2 is erected between the columns 1 and 1, the round steel material is
Since post-processing can be performed, workability is improved.
【００２１】本発明に係る制振装置による制振効果を図
９に示す。図において縦軸が軸応力（ｔ／ｃｍ2）、横
軸が（軸歪）であり、小ひずみ時の履歴減衰が制振装置
がない場合に比べて大きくなることが判る。FIG. 9 shows the vibration damping effect of the vibration damping device according to the present invention. In the figure, the vertical axis indicates the axial stress (t / cm 2 ), and the horizontal axis indicates (axial strain). It can be seen that the hysteresis attenuation at the time of small strain is larger than that without the vibration damping device.
【００２２】[0022]
【発明の効果】以上説明したように、本発明の鉄骨梁に
おける制振装置は、鉄骨梁の端部に、低降伏点鋼材と該
低降伏点鋼材の外側に遊嵌状態で嵌装され低降伏点鋼材
の座屈を拘束するパイプと該低降伏点鋼材の長手方向の
両端に設ける取付用治具とをユニット化させてなるユニ
ット型制振部材を、着脱自在に固定したものなので、制
振装置としてユニット型にして高品質なものになり、鉄
骨梁の熱的影響による劣化の心配もない。また、着脱自
在であるので制振部材の交換が容易であり、要求される
性能に応じて設計変更の自由度も増すと言う優れた効果
を奏する。As described above, the vibration damping device for a steel beam according to the present invention has a low yield point steel material at the end of the steel beam and a low yield point steel material which is loosely fitted to the outside of the low yield point steel material. Yield point steel
Buckling of the pipe and the low yield point steel material in the longitudinal direction
A unit- type vibration damping member, which is a unit of mounting jigs provided at both ends , is detachably fixed, so that it is a unit-type vibration damping device and has high quality. There is no concern about deterioration of steel beams due to thermal effects. In addition, since it is detachable, the vibration damping member can be easily replaced, and an excellent effect of increasing the degree of freedom of design change according to required performance is achieved.
【００２３】[0023]
【図１】本発明に係る第１実施例を示す正面図である。FIG. 1 is a front view showing a first embodiment according to the present invention.
【図２】同本発明に係るユニット型制振部材の正面図で
ある。FIG. 2 is a front view of a unit-type vibration damping member according to the present invention.
【図３】図１のＡ−Ａ線に沿った縦断面図である。FIG. 3 is a vertical sectional view taken along line AA of FIG. 1;
【図４】ユニット型制振部材を鉄骨梁に取り付ける場合
の他の例を示す一部縦断面図である。FIG. 4 is a partial longitudinal sectional view showing another example of the case where the unit type vibration damping member is attached to a steel beam.
【図５】同ユニット型制振部材を鉄骨梁に取り付ける場
合の他の例を示す正面図である。FIG. 5 is a front view showing another example in which the unit type vibration damping member is attached to a steel beam.
【図６】他の実施例に係る正面図である。FIG. 6 is a front view according to another embodiment .
【図７】同他の実施例の平面図である。FIG. 7 is a plan view of another embodiment .
【図８】同他の実施例の縦断面図である。FIG. 8 is a longitudinal sectional view of another embodiment .
【図９】軸歪と軸応力の関係を示す説明図である。FIG. 9 is an explanatory diagram showing a relationship between axial strain and axial stress.
【図１０】従来例に係る制振装置の使用状態の正面図で
ある。FIG. 10 is a front view of a used state of a vibration damping device according to a conventional example.
【図１１】同側縦断面図である。FIG. 11 is a longitudinal sectional view of the same side.
１ 柱、２ 鉄骨梁、３ ユニット型制振部材、４ 丸
鋼材、５ 鉄パイプ、６，７ 取付用治具、８，９ 丸
鋼材。1 pillar, 2 steel beams, 3 unit type damping member, 4 round steel, 5 iron pipe, 6,7 mounting jig, 8,9 round steel.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 舘野 孝信 東京都中央区京橋１−７−１ 戸田建設 株式会社内 (72)発明者 海老沢 弘道 東京都中央区京橋１−７−１ 戸田建設 株式会社内 (72)発明者 高梨 成次 東京都中央区京橋１−７−１ 戸田建設 株式会社内 (56)参考文献 特開 平４−128460（ＪＰ，Ａ) 実開 平５−73170（ＪＰ，Ｕ) ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Takanobu Tateno 1-7-1 Kyobashi, Chuo-ku, Tokyo Toda Construction Co., Ltd. (72) Inventor Hiromichi Ebisawa 1-7-1 Kyobashi, Chuo-ku, Tokyo Toda Construction Co., Ltd. (72) Inventor Seiji Takanashi 1-7-1 Kyobashi, Chuo-ku, Tokyo Toda Construction Co., Ltd. (56) References JP-A-4-128460 (JP, A) JP-A-5-73170 (JP, U )
Claims (1)
伏点鋼材の外側に遊嵌状態で嵌装され低降伏点鋼材の座
屈を拘束するパイプと該低降伏点鋼材の長手方向の両端
に設ける取付用治具とをユニット化させてなるユニット
型制振部材を、着脱自在に固定したことを特徴とする鉄
骨梁における制振装置。1. A low yield point steel material and a seat of a low yield point steel material which is loosely fitted to an end of a steel beam and is fitted outside the low yield point steel material.
Pipes that restrain buckling and both ends in the longitudinal direction of the low yield point steel
A vibration damping device for a steel beam, wherein a unit-type vibration damping member obtained by uniting a mounting jig provided in the unit is detachably fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6128619A JP2726003B2 (en) | 1994-06-10 | 1994-06-10 | Damping device for steel beams |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6128619A JP2726003B2 (en) | 1994-06-10 | 1994-06-10 | Damping device for steel beams |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07331795A JPH07331795A (en) | 1995-12-19 |
| JP2726003B2 true JP2726003B2 (en) | 1998-03-11 |
Family
ID=14989273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6128619A Expired - Fee Related JP2726003B2 (en) | 1994-06-10 | 1994-06-10 | Damping device for steel beams |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2726003B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4280956B2 (en) * | 2000-01-31 | 2009-06-17 | 東京鐵鋼株式会社 | Damping structure of building structures |
| JP4546619B2 (en) * | 2000-06-22 | 2010-09-15 | 株式会社竹中工務店 | Column base damping structure |
| US20080148681A1 (en) * | 2006-12-22 | 2008-06-26 | Badri Hiriyur | Moment frame connector |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04128460A (en) * | 1990-09-19 | 1992-04-28 | Toshiro Suzuki | Reinforcing structural member |
| JPH0573170U (en) * | 1992-03-05 | 1993-10-05 | 新日本製鐵株式会社 | Vibration suppression beams for steel structures |
-
1994
- 1994-06-10 JP JP6128619A patent/JP2726003B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07331795A (en) | 1995-12-19 |
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