JP2543005Y2 - Steel structure - Google Patents
Steel structureInfo
- Publication number
- JP2543005Y2 JP2543005Y2 JP516391U JP516391U JP2543005Y2 JP 2543005 Y2 JP2543005 Y2 JP 2543005Y2 JP 516391 U JP516391 U JP 516391U JP 516391 U JP516391 U JP 516391U JP 2543005 Y2 JP2543005 Y2 JP 2543005Y2
- Authority
- JP
- Japan
- Prior art keywords
- steel
- yield point
- extremely low
- earthquake
- 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
- Building Environments (AREA)
- Rod-Shaped Construction Members (AREA)
Description
【０００１】[0001]
【従来の技術】本出願人は特願平２−１０１６３５号に
おいて、Ｈ形鋼の柱、梁からなる鉄骨構造物において、
柱Ａ及び梁Ｂの端部におけるＨ形鋼のフランジａの表面
に、母材より遙かに低い極低降伏点鋼材ｂを積層して、
地震時に生じる曲げ応力の一部を同極低降伏点鋼材に負
担させて塑性化させることによって、減衰の大きい復元
力特性が得られ、構造物の振動が低減され、且つ早期に
収斂される鉄骨構造物を提案した。（図２及び図３参
照）2. Description of the Related Art The present applicant has disclosed in Japanese Patent Application No. 2-101635 a steel structure comprising H-shaped steel columns and beams.
On the surface of the flange a of the H-section steel at the ends of the column A and the beam B, an extremely low yield point steel material b which is much lower than the base material is laminated,
A part of the bending stress generated at the time of the earthquake is applied to the same low-yield-point steel material and plasticized, so that a large damping restoring force characteristic is obtained, the vibration of the structure is reduced, and the steel frame is converged early. The structure was proposed. (See FIGS. 2 and 3)
【０００２】[0002]
【考案が解決しようとする課題】このように鋼材の塑性
歪エネルギーの履歴減衰を用いた制振構造として極低降
伏点鋼材を用いる場合、前記従来の鉄骨構造物における
ように柱及び梁を構成するＨ形鋼のフランジ面に極低降
伏点鋼材を積層しようとすると、図２から明らかなよう
に前記極低降伏点鋼材ｂが鉄骨梁Ｂの接合、及びスラブ
Ｃの配筋に支障を招来する。When an extremely low yield point steel material is used as the vibration damping structure using the hysteresis damping of the plastic strain energy of the steel material, columns and beams are formed as in the conventional steel structure. When it is attempted to laminate the extremely low yield point steel material on the flange surface of the H-section steel, the extremely low yield point steel material b interferes with the joining of the steel beam B and the reinforcement of the slab C, as is apparent from FIG. I do.
【０００３】本考案は前記従来技術の有する問題点に鑑
みて提案されたもので、その目的とする処は、地震時に
おける減衰の大きい復元特性が得られ、構造物の振動を
速やかに低減し、しかも実際の施工上に支障を招来する
ことのない鉄骨構造物を提供する点にある。[0003] The present invention has been proposed in view of the above-mentioned problems of the prior art. The object of the present invention is to obtain a restoration characteristic with a large attenuation during an earthquake and to reduce the vibration of a structure quickly. Another object of the present invention is to provide a steel structure which does not cause any trouble in actual construction.
【０００４】[0004]
【課題を解決するための手段】前記の目的を達成するた
め、本考案に係る鉄骨構造物は、Ｈ形鋼の部材よりなる
鉄骨構造物において、同部材端部において同部材を構成
するＨ形鋼のフランジ側面に、母材より遙かに降伏点強
度の低い極低降伏点鋼材を溶着して構成されている。In order to achieve the above object, a steel structure according to the present invention is an H-shaped steel structure made of an H-shaped steel member. An extremely low yield point steel material having a much lower yield point strength than the base metal is welded to the side surface of the steel flange.
【０００５】[0005]
【作用】本考案によればＨ形鋼の部材よりなる鉄骨構造
物において、地震、強風によって比較的大きい歪みを生
じる柱、梁等の部材端部においてＨ形鋼のフランジの側
面に、母材より遙かに低い降伏点を有し、塑性域での伸
び能力の大きい極低降伏点鋼材を溶着したことによっ
て、地震時等に生じる曲げ応力の一部を前記極低降伏点
鋼材に負担させて塑性化させることによって、地震によ
る構造物の吸収能力が向上して、振動が急速に低減し、
早期に収斂するものである。According to the present invention, in a steel structure made of an H-shaped steel member, at the end of a member such as a column or a beam which generates a relatively large strain due to an earthquake or a strong wind, a base material is provided on the side surface of the H-shaped steel flange. By welding a very low yield point steel material having a much lower yield point and a large elongation capacity in the plastic region, a part of the bending stress generated during an earthquake or the like is borne by the extremely low yield point steel material. Plasticization improves the ability of the structure to absorb earthquakes, reduces vibrations rapidly,
It converges early.
【０００６】[0006]
【実施例】以下本考案を実施例について説明すると、鉄
骨構造物における柱、梁、ブレース等の部材端部におい
て、同部材を構成するＨ形鋼１におけるフランジ２の側
面に、降伏点がσy ＝５００〜１５００ｋｇ／ｃｍ2 程
度と、一般的な構造用鋼材の降伏点より遙かに低く、塑
性域での伸び能力が大きい極軟鋼の如き極低降伏点鋼材
３を溶着する。図１は梁４の端部において極低降伏点鋼
材３をＨ形鋼１のフランジ２の側面に溶着した場合を示
すものであるが、骨組の梁端部に限らず鉄骨構造物の中
で比較的大きな歪みを生じる場合であればどこでもよ
く、梁端部以外では柱の上下端部、ブレースの軸部、柱
梁の接合部でもよい。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to embodiments. At the end of a member such as a column, a beam or a brace in a steel structure, a yield point σ An extremely low yield point steel material 3 such as an ultra mild steel, which has a y = about 500 to 1500 kg / cm 2, which is much lower than the yield point of a general structural steel material and has a large elongation ability in a plastic region, is welded. FIG. 1 shows a case where the extremely low yield point steel material 3 is welded to the side surface of the flange 2 of the H-section steel 1 at the end of the beam 4. Any position may be used as long as a relatively large distortion is generated. The portion other than the beam end may be the upper and lower ends of the column, the shaft portion of the brace, or the joint of the column and beam.
【０００７】図示の実施例は前記したように構成されて
いるので、地震時に生じる応力によって、前記部材端部
が局所的に塑性化され、地震によるエネルギーを吸収す
るものである。In the embodiment shown in the drawings, the end of the member is locally plasticized by the stress generated at the time of the earthquake and absorbs the energy due to the earthquake.
【０００８】[0008]
【考案の効果】本考案によれば前記したように、鉄骨構
造物を構成する部材端部において、同部材を構成するＨ
形鋼のフランジ側面に、母材より遙かに降伏点強度が低
い極低降伏点鋼材を溶着したことによって、大地震に対
する構造物のエネルギー吸収能力を向上し、振動の減衰
を早め、構造物に過大な損傷を生じさせないようにしう
るものである。しかもそのため高度の設計技術や特殊な
製品、仕組みを組込む必要がなく、構造を簡略化し、工
費を節減しうるとともに、既存の鉄骨構造物にも、本考
案の構造を容易に組込むことができる。According to the present invention, as described above, at the end of the member constituting the steel structure, the H constituting the member is provided.
By welding extremely low yield point steel, which has a much lower yield point strength than the base metal, to the side of the flange of the section steel, the energy absorption capacity of the structure against large earthquakes is improved, vibration damping is accelerated, and This will not cause excessive damage. In addition, there is no need to incorporate advanced design techniques, special products, and mechanisms, so that the structure can be simplified, construction costs can be reduced, and the structure of the present invention can be easily incorporated into existing steel structures.
【０００９】また本考案によれば、前記極低降伏点鋼材
がＨ形鋼のフランジ側面に溶着されたことによって、部
材の継手やスラブの施工に支障を招来することがない。Further, according to the present invention, since the extremely low yield point steel material is welded to the flange side surface of the H-section steel, there is no hindrance to the joint and slab construction of the members.
【図１】本考案に係る鉄骨構造物の一実施例における梁
部を示す縦断面図である。FIG. 1 is a longitudinal sectional view showing a beam part in an embodiment of a steel structure according to the present invention.
【図２】従来の鉄骨構造物の一部縦断正面図である。FIG. 2 is a partial longitudinal front view of a conventional steel structure.
【図３】従来の鉄骨構造物における梁部の縦断面図であ
る。FIG. 3 is a longitudinal sectional view of a beam part in a conventional steel structure.
１ Ｈ形鋼 ２ フランジ ３ 極低降伏点鋼材 ４ 梁 Reference Signs List 1 H-section steel 2 Flange 3 Extremely low yield point steel material 4 Beam
Claims (1)
て、同部材端部において同部材を構成するＨ形鋼のフラ
ンジ側面に、母材より遙かに降伏点強度の低い極低降伏
点鋼材を溶着してなり、地震時に生じる応力によって前
記部材端部を局所的に塑性化させ、地震によるエネルギ
ーを吸収するように構成してなることを特徴とする鉄骨
構造物。1. A steel structure comprising an H-shaped steel member, an extremely low yield point having a much lower yield point strength than a base material on a side surface of a flange of an H-shaped steel constituting the same member at an end of the H-shaped steel member. A steel structure, wherein a steel material is welded, and an end of the member is locally plasticized by a stress generated at the time of an earthquake to absorb energy due to the earthquake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP516391U JP2543005Y2 (en) | 1991-02-12 | 1991-02-12 | Steel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP516391U JP2543005Y2 (en) | 1991-02-12 | 1991-02-12 | Steel structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04101418U JPH04101418U (en) | 1992-09-02 |
| JP2543005Y2 true JP2543005Y2 (en) | 1997-08-06 |
Family
ID=31735496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP516391U Expired - Lifetime JP2543005Y2 (en) | 1991-02-12 | 1991-02-12 | Steel structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2543005Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0768738B2 (en) * | 1991-02-22 | 1995-07-26 | 敏郎 鈴木 | Hybrid steel |
| JP5868603B2 (en) * | 2011-03-29 | 2016-02-24 | 株式会社フジタ | Seismic reinforcement method for existing buildings |
-
1991
- 1991-02-12 JP JP516391U patent/JP2543005Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04101418U (en) | 1992-09-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |