JP2939916B2 - Built-in beam damper for steel girder - Google Patents
Built-in beam damper for steel girderInfo
- Publication number
- JP2939916B2 JP2939916B2 JP25717391A JP25717391A JP2939916B2 JP 2939916 B2 JP2939916 B2 JP 2939916B2 JP 25717391 A JP25717391 A JP 25717391A JP 25717391 A JP25717391 A JP 25717391A JP 2939916 B2 JP2939916 B2 JP 2939916B2
- Authority
- JP
- Japan
- Prior art keywords
- steel
- damper
- girder
- shaped
- tongue
- 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)
- Vibration Dampers (AREA)
Description
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【産業上の利用分野】本発明は、鉄骨材からなる大梁に
おいての制震ダンパー部に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration damper for a girder made of steel frame.
【０００２】[0002]
【従来の技術】図３に示すように、従来、鉄骨構造体の
大梁においての制震ダンパー部１では、梁組み込み型と
して、この大梁ａを構成する一対の鉄骨大梁部材２，２
を大梁ａの中央で突き合うようにして配置し、近接した
鉄骨大梁部材の端部３，３に渡るようにして鋼材ダンパ
ー４が鉄骨大梁部材のウエブ２ａの両面に取付固定され
ていた。2. Description of the Related Art As shown in FIG. 3, in a conventional vibration damper 1 for a steel beam of a steel structure, a pair of steel beam members 2 and 2 constituting the beam a are of a beam built-in type.
Are arranged so as to abut each other at the center of the girder a, and the steel dampers 4 are attached and fixed to both surfaces of the web 2a of the girder of the steel so as to extend over the ends 3 and 3 of the adjacent girder.
【０００３】前記鋼材ダンパー４は、図５に示すよう
に、略Ｈ字状とした鋼材からなるプレート状で、上述し
たように鉄骨大梁部材２のウエブ２ａにボルト締結され
る取付面部４０を両側に有し、この取付面部４０を繋い
で中央を細くした連続部４１とからなるものであった。[0005] As shown in FIG. 5, the steel damper 4 has a plate shape made of a substantially H-shaped steel material, and has a mounting surface portion 40 which is bolted to the web 2 a of the steel beam member 2 as described above. And a continuous portion 41 whose center is thinned by connecting the mounting surface portion 40.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記し
た構造の制震ダンパー部を採用した鉄骨構造体に関し
て、地震動入力の早期レベル（弾性設計領域）において
この鋼材ダンパーを検討すると、塑性化領域が小さく、
よってエネルギー吸収能が低いという欠点がある。また
鋼材プレートよりこの略Ｈ字状の鋼材ダンパーを切り出
すため、素材コストが高いものとなっていた。However, regarding a steel structure employing the above-structured vibration damper, when this steel damper is examined at an early level (elastic design area) of the seismic motion input, the plasticization area is small. ,
Therefore, there is a disadvantage that the energy absorbing ability is low. Further, since the substantially H-shaped steel damper is cut out from the steel plate, the material cost is high.
【０００５】そこで本発明は上記した事情に鑑みて、地
震動入力の早期レベルにおいて、制震ダンパー部の塑性
化領域を大きくすることを課題とし、低コストにて制震
ダンパー部のエネルギー吸収能を高めることを目的とす
る。In view of the above circumstances, it is an object of the present invention to increase the plasticization area of a vibration damper at an early level of a seismic motion input, and to reduce the energy absorption capacity of the vibration damper at a low cost. The purpose is to increase.
【０００６】[0006]
【課題を解決するための手段】本考案は上記した課題を
考慮してなされたもので、大梁を構成する一対の鉄骨大
梁部材が大梁の中央で突き合うようにして配置され、前
記鉄骨大梁部材の近接する端部に渡って鋼材ダンパーを
設けた鉄骨大梁の制震ダンパー部において、前記鋼材ダ
ンパーは、長手方向に亘るＣ型チャンネル部材とこのＣ
型チャンネル部材の上下端に設けた舌片状部材とからな
り、該鋼材ダンパーの前記Ｃ型チャンネル部材が、前記
鉄骨大梁部材のウエブそれぞれに取付固定され、前記鋼
材ダンパーの舌片状部材が、鉄骨大梁部材それぞれのフ
ランジからウエブにかけて設けられた舌片状部材に取付
固定されていることを特徴とする鉄骨大梁における梁組
み込み型制震ダンパー部を提供して、上記課題を解消し
ようとするものである。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and a pair of steel girder members constituting a girder are arranged so as to abut each other at the center of the girder. A steel damper provided with a steel damper over the adjacent end of the steel beam damper, the steel damper comprises a longitudinally extending C-shaped channel member and a C-shaped channel member.
A tongue-shaped member provided at the upper and lower ends of a mold channel member, wherein the C-shaped channel member of the steel damper is fixedly attached to each web of the steel beam girder member, and the tongue-shaped member of the steel damper is An object of the present invention is to provide a beam-embedded damper for a steel girder, wherein the damper is mounted and fixed to a tongue-like member provided from the flange of each steel girder member to the web. It is.
【０００７】[0007]
【作用】本発明においては、地震動入力の早期レベル
で、Ｃ型チャンネルからなる鋼材ダンパーを通して、鋼
材ダンパーの舌片部材およびこれに連結されている鉄骨
大梁部材側の舌片状部材がエネルギーを受けて塑性変形
を起こし易く、よって制震ダンパー部としてのエネルギ
ー吸収能が向上する。In the present invention, the tongue member of the steel damper and the tongue-like member on the side of the steel beam connected to the steel damper receive the energy through the steel damper composed of the C-shaped channel at the early level of the seismic motion input. As a result, plastic deformation is likely to occur, so that the energy absorption capacity of the vibration damper is improved.
【０００８】[0008]
【実施例】つぎに本発明を図１と図２に示す一実施例に
基づいて詳細に説明する。本発明において制震ダンパー
部１は、図示するように、梁組み込み型をなすものであ
って、まず、鋼材ダンパー５は、大梁ａの長手方向に亘
るＣ型チャンネル部材６とこのＣ型チャンネル部材６の
上下フランジ６０それぞれに立設した複数の舌片状部材
７（この舌片状部材７は大梁ａの長手方向に対して面が
向くように起立している）とからなり、前記舌片状部材
７の立設部間を繋ぐようにしてＣ型チャンネル部材６の
上下フランジ６０間に立片部材６１が一体に設けられて
いる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described in detail based on one embodiment shown in FIGS. In the present invention, as shown in the drawing, the damping portion 1 is of a beam-incorporated type. First, the steel damper 5 is composed of a C-shaped channel member 6 and a C-shaped channel member 6 extending in the longitudinal direction of the girder a. 6, a plurality of tongue-shaped members 7 standing upright on the upper and lower flanges 60 (the tongue-shaped members 7 are erected so that their surfaces face the longitudinal direction of the girder a). An upright member 61 is integrally provided between the upper and lower flanges 60 of the C-shaped channel member 6 so as to connect the upright portions of the shaped members 7.
【０００９】そして鋼材ダンパー５の上記Ｃ型チャンネ
ル部材６が、鉄骨大梁部材２，２の端部３，３に渡るよ
うにして、かつそのウエブ２ａを両面側から挟むように
してボルト締結により取付固定されている。また前記端
部３，３側においては、鉄骨大梁部材２，２それぞれの
上下フランジ２ｂからウエブ２ａにかけて舌片状部材８
が、前記舌片状部材７に対応する位置で一体に設けられ
て（この舌片状部材８はフランジ２ｂやウエブ２ａに対
して直角となる）いて、この舌片状部材８それぞれに舌
片状部材７がボルト締結により連結固定することによっ
て、制震ダンパー部１が構成されている。The C-shaped channel member 6 of the steel damper 5 is attached and fixed by bolting so as to extend over the ends 3, 3 of the steel beam members 2, 2 and sandwich the web 2a from both sides. ing. On the ends 3 and 3, the tongue-like members 8 extend from the upper and lower flanges 2b of the steel beam members 2 and 2 to the web 2a.
Are provided integrally at positions corresponding to the tongue-shaped members 7 (the tongue-shaped members 8 are perpendicular to the flange 2b and the web 2a), and each of the tongue-shaped members 8 The vibration control damper part 1 is constituted by connecting and fixing the shaped member 7 by bolting.
【００１０】上記構造の制震ダンパー部１にあっては、
地震動入力の早期レベルでＣ型チャンネル材６を伝わっ
たエネルギーによって、舌片状部材７と舌片状部材８と
が塑性変形となる形状変形までに達し易くなり、エネル
ギーの吸収能が高められている。In the vibration damper 1 having the above structure,
The energy transmitted through the C-shaped channel material 6 at an early level of the seismic motion input makes it easier for the tongue-shaped member 7 and the tongue-shaped member 8 to reach a shape deformation in which plastic deformation occurs, and the energy absorbing ability is enhanced. I have.
【００１１】[0011]
【発明の効果】以上説明したように、本発明によれば、
大梁を構成する一対の鉄骨大梁部材が大梁の中央で突き
合うようにして配置され、前記鉄骨大梁部材の近接する
端部に渡って鋼材ダンパーを設けた鉄骨大梁の制震ダン
パー部において、前記鋼材ダンパーは、長手方向に亘る
Ｃ型チャンネル部材とこのＣ型チャンネル部材の上下端
に設けた舌片状部材とからなり、該鋼材ダンパーの前記
Ｃ型チャンネル部材が、前記鉄骨大梁部材のウエブそれ
ぞれに取付固定され、前記鋼材ダンパーの舌片状部材
が、鉄骨大梁部材それぞれのフランジからウエブにかけ
て設けられた舌片状部材に取付固定されているので、地
震動入力の早期レベルにおいて、鋼材ダンパーに設けた
舌片状部材や鉄骨大梁部材側に設けた舌片状部材などの
鋼材の降伏が見込まれ、エネルギー吸収能の高いダンパ
ー部が得られるようになる。また、従来のプレート状の
鋼材ダンパーを用いたものに比べて素材費などが頗る安
くなり、低コストで梁組み込み型制震ダンパー部が得ら
れるようになるなど、実用性に優れた効果を奏するもの
である。As described above, according to the present invention,
A pair of steel girder members constituting the girder are arranged so as to abut each other at the center of the girder, and the steel girder is provided in a vibration damper portion of a steel girder provided with a steel damper over an adjacent end of the girder member. The damper includes a C-shaped channel member extending in the longitudinal direction and tongue-shaped members provided at upper and lower ends of the C-shaped channel member. The C-shaped channel member of the steel damper is attached to each of the webs of the steel beam girder member. Since the tongue-shaped member of the steel damper is fixedly attached to the tongue-shaped member provided from the flange of each steel girder member to the web, the steel damper is provided on the steel damper at an early level of seismic motion input. It is expected that steel materials such as tongue-shaped members and tongue-shaped members provided on the steel girder member side will yield, so that a damper part with high energy absorption capacity can be obtained. It made. In addition, material costs are significantly lower than those using conventional plate-shaped steel dampers, and beam-integrated vibration dampers can be obtained at low cost. Things.
【図１】本発明に係る鉄骨大梁における梁組み込み型制
震ダンパー部の一実施例を示す説明図である。FIG. 1 is an explanatory view showing one embodiment of a beam-embedded type vibration damper in a steel girder according to the present invention.
【図２】図１のＡ−Ａ線部における断面を示す説明図で
ある。FIG. 2 is an explanatory diagram showing a cross section taken along line AA of FIG. 1;
【図３】従来例を示す説明図である。FIG. 3 is an explanatory diagram showing a conventional example.
【図４】図３のＢ−Ｂ線部における断面を示す説明図で
ある。FIG. 4 is an explanatory diagram showing a cross section taken along line BB of FIG. 3;
【図５】従来例における鋼材ダンパーを示す説明図であ
る。FIG. 5 is an explanatory view showing a steel damper in a conventional example.
１…制震ダンパー部 ２…鉄骨大梁部材 ２ａ…ウエブ ２ｂ…フランジ ａ…大梁 ３…鉄骨大梁部材の端部 ５…鋼材ダンパー ６…Ｃ型チャンネル部材 ７…舌片状部材 ８…舌片状部材 DESCRIPTION OF SYMBOLS 1 ... Damping damper part 2 ... Steel girder member 2a ... Web 2b ... Flange a ... Girder 3 ... End of steel girder member 5 ... Steel damper 6 ... C-shaped channel member 7 ... Tongue-shaped member 8 ... Tongue-shaped member
Claims (1)
の中央で突き合うようにして配置され、前記鉄骨大梁部
材の近接する端部に渡って鋼材ダンパーを設けた鉄骨大
梁の制震ダンパー部において、 前記鋼材ダンパーは、長手方向に亘るＣ型チャンネル部
材とこのＣ型チャンネル部材の上下端に設けた舌片状部
材とからなり、 該鋼材ダンパーの前記Ｃ型チャンネル部材が、前記鉄骨
大梁部材のウエブそれぞれに取付固定され、 前記鋼材ダンパーの舌片状部材が、鉄骨大梁部材それぞ
れのフランジからウエブにかけて設けられた舌片状部材
に取付固定されていることを特徴とする鉄骨大梁におけ
る梁組み込み型制震ダンパー部。1. A seismic damper for a steel girder, wherein a pair of steel girder members constituting a girder are arranged so as to abut each other at the center of the girder, and a steel damper is provided over an adjacent end of the steel girder member. Wherein the steel damper comprises a C-shaped channel member extending in the longitudinal direction and tongue-shaped members provided at upper and lower ends of the C-shaped channel member, wherein the C-shaped channel member of the steel damper is formed of the steel beam. A tongue-shaped member of the steel damper, the tongue-shaped member of the steel damper being attached and fixed to a tongue-shaped member provided from the flange of each steel frame girder member to the web; Built-in vibration damper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25717391A JP2939916B2 (en) | 1991-09-10 | 1991-09-10 | Built-in beam damper for steel girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25717391A JP2939916B2 (en) | 1991-09-10 | 1991-09-10 | Built-in beam damper for steel girder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0571241A JPH0571241A (en) | 1993-03-23 |
| JP2939916B2 true JP2939916B2 (en) | 1999-08-25 |
Family
ID=17302705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25717391A Expired - Fee Related JP2939916B2 (en) | 1991-09-10 | 1991-09-10 | Built-in beam damper for steel girder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2939916B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112982197B (en) * | 2021-03-17 | 2023-05-23 | 黄河水利职业技术学院 | I-steel stress system reinforcing apparatus |
-
1991
- 1991-09-10 JP JP25717391A patent/JP2939916B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0571241A (en) | 1993-03-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |