JPH05263499A - Steel column - Google Patents
Steel columnInfo
- Publication number
- JPH05263499A JPH05263499A JP4089351A JP8935192A JPH05263499A JP H05263499 A JPH05263499 A JP H05263499A JP 4089351 A JP4089351 A JP 4089351A JP 8935192 A JP8935192 A JP 8935192A JP H05263499 A JPH05263499 A JP H05263499A
- Authority
- JP
- Japan
- Prior art keywords
- steel
- steel material
- steel materials
- column
- materials
- 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.)
- Granted
Links
Landscapes
- Rod-Shaped Construction Members (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、鉄骨構造体における鉄
骨柱に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steel column in a steel structure.
【０００２】[0002]
【従来の技術】従来、鉄骨構造の建築物にあっては、地
震時における建築物の揺れ対策としてエネルギーの吸収
を行うダンパーを用いるようになってきている。このダ
ンパーは建築物の層間変形のうち剪断変形に比例して働
く剪断型のものであって、地震時におけるダンパーのエ
ネルギー吸収作用によって建築物の揺れを減少させてい
た。2. Description of the Related Art Conventionally, in a building having a steel frame structure, a damper that absorbs energy has been used as a measure against shaking of the building during an earthquake. This damper is a shear type that acts in proportion to the shear deformation of the interlayer deformation of the building, and the shaking of the building was reduced by the energy absorbing action of the damper during an earthquake.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、昨今の
高層建築物においての変形では、曲げ変形が変形形態の
半分以上を占めていて、このため上述の剪断型ダンパー
がその高層建築物に採用されていてもダンパーの効率は
小さく、高層建築物の揺れが減少させにくくなってい
る。However, in the recent deformation of high-rise buildings, bending deformation occupies more than half of the deformation modes. Therefore, the shear-type damper described above is adopted in the high-rise buildings. However, the efficiency of the damper is small, and it is difficult to reduce the sway of high-rise buildings.
【０００４】そこで本発明は上記した事情に鑑み、鉄骨
造建築物における鉄骨柱に関し、この鉄骨柱の軸変形に
よって曲げ変形のエネルギーを吸収させるようにするこ
とを課題とし、特に高層建築物における揺れを減少させ
ることを目的とするものである。In view of the above-mentioned circumstances, the present invention relates to a steel frame column in a steel frame building, and an object thereof is to absorb the energy of bending deformation by axial deformation of the steel frame column. Is intended to be reduced.
【０００５】[0005]
【課題を解決するための手段】本発明は上記した課題を
考慮してなされたもので、相対する一組の側面に位置す
る極軟鋼からなる板状の鋼材と、相対する前記鋼材の間
に位置して少なくとも側端部が前記鋼材の端部に連結さ
れている高強度鋼からなる鋼材と、からなることを特徴
とする鉄骨柱を提供して、上記課題を解消するものであ
る。The present invention has been made in consideration of the above-mentioned problems, and is provided between a plate-shaped steel material made of extremely mild steel located on a pair of opposing side surfaces and the opposing steel material. (EN) A steel frame column, which is characterized in that it is made of high-strength steel and has at least a side end portion connected to the end portion of the steel material.
【０００６】[0006]
【作用】本発明において、地震時に加わる軸力によっ
て、鉄骨柱の極軟鋼からなる鋼材部分と高強度鋼からな
る鋼材部分とに同じ軸変形を生じる。そして極軟鋼の鋼
材において降伏歪みが生じる応力が小さいため、軸力が
加わる早期に前記極軟鋼の鋼材が降伏し、エネルギーを
吸収する。一方、高強度鋼の鋼材は極大地震に対しても
その内部応力が弾性域に留まり、鉄骨構造体の破壊を生
じさせないようになる。さらに高強度鋼の鋼材は、極軟
鋼の鋼材の局部座屈が生じないようにこの極軟鋼の鋼材
を拘束する。In the present invention, due to the axial force applied during an earthquake, the same axial deformation occurs in the steel material portion of the ultra-soft steel and the steel material portion of the high-strength steel of the steel frame column. Since the stress that causes yield strain in the ultra-soft steel is small, the ultra-soft steel yields and absorbs energy at an early stage when an axial force is applied. On the other hand, in the case of high-strength steel, the internal stress remains in the elastic region even in the event of a maximum earthquake, and the steel structure will not be destroyed. Further, the high-strength steel material restrains the ultra-soft steel material so that local buckling of the ultra-soft steel material does not occur.
【０００７】このように本発明の鉄骨柱は高強度鋼の鋼
材と極軟鋼の鋼材とからなるものであり、図４に示すよ
うに鉄骨柱ａに軸力ｂを加わえる場合、図５のｃに示す
ように極軟鋼の鋼材側は前記軸力が小さい時点で降伏に
達して以降塑性変形するものであり、図５のｄに示すよ
うに高強度鋼の鋼材側は降伏する時の軸力が大きく、こ
の両者が一体となっている鉄骨柱全体としては、図５の
ｅに示すように極軟鋼の鋼材が降伏する点、すなわち軸
力が小さい時点を境として弾性域が変化してエネルギー
を吸収する。As described above, the steel frame column of the present invention is made of the high strength steel and the ultra soft steel, and when the axial force b is applied to the steel column a as shown in FIG. As shown in FIG. 5c, the steel material side of the ultra-soft steel reaches yielding when the axial force is small and then plastically deforms, and as shown in FIG. 5d, the steel material side of high strength steel is the axis when yielding. As a whole of a steel frame column in which both the forces are large and the two are integrated, as shown in e of FIG. 5, the elastic region changes at the point where the ultra-soft steel material yields, that is, when the axial force is small. Absorbs energy.
【０００８】[0008]
【実施例】つぎに本発明を図１から図３に示す実施例に
基づいて詳細に説明する。図１は第一実施例を示すもの
である。この第一実施例の鉄骨柱１は角柱状のもので、
相対する一組の側面１ａを極軟鋼からなる板状の鋼材２
とし、他の一組の側面１ｂを高強度鋼からなる板状の鋼
材３としている。そして相対する鋼材２の端部２ａ間に
前記鋼材３が位置し、鋼材２の端部２ａと鋼材３の端部
３ａとが溶接接合されて、この鉄骨柱１が形成されてい
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the embodiments shown in FIGS. FIG. 1 shows a first embodiment. The steel column 1 of the first embodiment is a prismatic column,
A pair of opposing side surfaces 1a are plate-shaped steel materials 2 made of extremely soft steel.
And another set of side surfaces 1b is a plate-shaped steel material 3 made of high-strength steel. The steel material 3 is located between the opposite end portions 2a of the steel material 2, and the end portion 2a of the steel material 2 and the end portion 3a of the steel material 3 are welded to each other to form the steel column 1.
【０００９】図２は第二実施例を示すものである。この
第二実施例の鉄骨柱１は第一実施例と同様に角柱状であ
り、相対する一組の側面１ａを極軟鋼からなる板状の鋼
材２とし、この鋼材２間に高強度鋼からなるＨ型鋼材４
を配置してＨ型鋼材４のフランジ４０を他の一組の側面
１ｂとしている。図示するごとく相対する鋼材２の端部
２ａ間に前記フランジ４０が位置しており、鋼材２の端
部２ａとフランジ４０の端部４０ａとが溶接接合され
て、この鉄骨柱１が形成されている。FIG. 2 shows a second embodiment. Similar to the first embodiment, the steel frame pillar 1 of the second embodiment has a prismatic shape, and a pair of opposing side surfaces 1a is a plate-shaped steel material 2 made of extremely soft steel. H type steel material 4
Are arranged to form the flange 40 of the H-shaped steel material 4 as another set of side surfaces 1b. As shown in the figure, the flange 40 is located between the opposite end portions 2a of the steel material 2, and the end portion 2a of the steel material 2 and the end portion 40a of the flange 40 are welded to each other to form the steel column 1. There is.
【００１０】図３は第三実施例を示すものである。この
第三実施例の鉄骨柱１は第一実施例と同様に角柱状であ
り、相対する一組の側面１ａを極軟鋼からなる板状の鋼
材２としている。そして前記鋼材２間に、高強度鋼から
なる一対の溝型鋼材５をウェブ５０が外方側に位置する
ように配置してこの溝型鋼材５のウェブ５０を他の一組
の側面１ｂとしている。図示するごとく相対する鋼材２
の端部２ａ間に前記ウェブ５０が位置しており、鋼材２
の端部２ａとウェブ５０の端部であるフランジ５１とが
溶接接合されて、この鉄骨柱１が形成されている。FIG. 3 shows a third embodiment. The steel frame pillar 1 of the third embodiment is a prismatic shape like the first embodiment, and a pair of facing side surfaces 1a is a plate-shaped steel material 2 made of extremely soft steel. A pair of groove-type steel materials 5 made of high-strength steel are arranged between the steel materials 2 so that the webs 50 are located on the outer side, and the webs 50 of the groove-type steel materials 5 are used as another set of side surfaces 1b. There is. Steel material 2 facing each other as shown
The web 50 is located between the ends 2a of the
The end portion 2a of the above and the flange 51 which is the end portion of the web 50 are welded and joined to each other to form the steel column 1.
【００１１】[0011]
【発明の効果】以上説明したように、本発明によれば、
鉄骨柱は、相対する一組の側面に位置する極軟鋼からな
る板状の鋼材と、相対する前記鋼材の間に位置して少な
くとも側端部が前記鋼材の端部に連結されている高強度
鋼からなる鋼材と、からなるので、鉄骨柱に加わる軸力
が小さい時点で柱全体としての弾性域が変化するように
なってエネルギー吸収能が高い鉄骨柱が得られるととも
に、高強度鋼の鋼材を有することにより降伏点の高い鉄
骨柱となる。そしてこの鉄骨柱を高層の鉄骨建築物に採
用することにより、地震時の揺れの元となる曲げ変形に
よるエネルギーを効率良く吸収でき、よって建築物の揺
れを減少させるなど、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,
The steel column is a plate-shaped steel material made of extremely soft steel located on a pair of opposite side surfaces, and a high-strength structure in which at least a side end portion is connected to an end portion of the steel material and is located between the steel materials facing each other. Since it is made of steel, the elastic range of the entire column will change when the axial force applied to the steel column is small, so that a steel column with high energy absorption capacity can be obtained, and a steel material of high strength steel. By having a steel plate, it becomes a steel column with a high yield point. And by adopting this steel column for high-rise steel building, it is possible to efficiently absorb the energy due to bending deformation that causes shaking during an earthquake, thus reducing the shaking of the building. Is played.
【図１】本発明に係る鉄骨柱の第一実施例を断面で示す
説明図である。FIG. 1 is an explanatory view showing a cross section of a first embodiment of a steel frame column according to the present invention.
【図２】第二実施例を断面で示す説明図である。FIG. 2 is an explanatory view showing a cross section of a second embodiment.
【図３】第三実施例を断面で示す説明図である。FIG. 3 is an explanatory view showing a cross section of a third embodiment.
【図４】鉄骨柱に対する軸力を示す説明図である。FIG. 4 is an explanatory diagram showing an axial force applied to a steel column.
【図５】軸力に対する極軟鋼の鋼材と高強度鋼の鋼材と
両者を合わせた柱全体との縮み量（歪み）をグラフで示
す説明図である。FIG. 5 is an explanatory diagram showing a graph of the amount of shrinkage (strain) of an extremely mild steel material, a high-strength steel material, and the entire column in which both are combined with respect to an axial force.
１…鉄骨柱 １ａ，１ｂ…側面 ２…鋼材 ３…鋼材 ４…Ｈ型鋼材 ５…溝型鋼材 DESCRIPTION OF SYMBOLS 1 ... Steel column 1a, 1b ... Side surface 2 ... Steel material 3 ... Steel material 4 ... H-shaped steel material 5 ... Groove-shaped steel material
Claims (1)
なる板状の鋼材と、相対する前記鋼材の間に位置して少
なくとも側端部が前記鋼材の端部に連結されている高強
度鋼からなる鋼材と、からなることを特徴とする鉄骨
柱。1. A plate-shaped steel material made of extremely soft steel located on a pair of opposite side surfaces, and a height between at least the side ends connected to the opposed steel materials. A steel column made of a steel material made of high-strength steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04089351A JP3125156B2 (en) | 1992-03-16 | 1992-03-16 | Steel column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04089351A JP3125156B2 (en) | 1992-03-16 | 1992-03-16 | Steel column |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05263499A true JPH05263499A (en) | 1993-10-12 |
| JP3125156B2 JP3125156B2 (en) | 2001-01-15 |
Family
ID=13968292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04089351A Expired - Fee Related JP3125156B2 (en) | 1992-03-16 | 1992-03-16 | Steel column |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3125156B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006132308A (en) * | 2004-10-06 | 2006-05-25 | Nippon Steel Corp | Stiffening structure of plate-like member and column structure using the same |
| JP2022062812A (en) * | 2020-10-09 | 2022-04-21 | Ｊｆｅスチール株式会社 | Welding/assembling box-shaped cross section member |
| JP2022062813A (en) * | 2020-10-09 | 2022-04-21 | Ｊｆｅスチール株式会社 | Box-shaped cross section member and is design method |
-
1992
- 1992-03-16 JP JP04089351A patent/JP3125156B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006132308A (en) * | 2004-10-06 | 2006-05-25 | Nippon Steel Corp | Stiffening structure of plate-like member and column structure using the same |
| JP4589789B2 (en) * | 2004-10-06 | 2010-12-01 | 新日本製鐵株式会社 | Structure and its corner structure and column structure |
| JP2022062812A (en) * | 2020-10-09 | 2022-04-21 | Ｊｆｅスチール株式会社 | Welding/assembling box-shaped cross section member |
| JP2022062813A (en) * | 2020-10-09 | 2022-04-21 | Ｊｆｅスチール株式会社 | Box-shaped cross section member and is design method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3125156B2 (en) | 2001-01-15 |
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