JP2885089B2 - Torsion-resistant frame by twisting helical spring effect - Google Patents
Torsion-resistant frame by twisting helical spring effectInfo
- Publication number
- JP2885089B2 JP2885089B2 JP23311294A JP23311294A JP2885089B2 JP 2885089 B2 JP2885089 B2 JP 2885089B2 JP 23311294 A JP23311294 A JP 23311294A JP 23311294 A JP23311294 A JP 23311294A JP 2885089 B2 JP2885089 B2 JP 2885089B2
- Authority
- JP
- Japan
- Prior art keywords
- helical spring
- floor
- torsion
- frame
- spring
- 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
Description
【０００１】[0001]
【産業上の利用分野】建築物では、その軸に対する捩じ
りモーメントに弱い場合があるが、該捩じりモーメント
に対して、架構内の構造要素により捩じりモーメントに
耐え得るような、耐捩じり架構に関する。BACKGROUND OF THE INVENTION In a building, there is a case where the torsional moment with respect to its axis is weak, but the torsional moment can be tolerated by the structural element in the frame. It relates to a torsional frame.
【０００２】[0002]
【従来の技術】従来、例えば外周部を開放的にした架
構、或いは中央部に耐震要素を集中して設けた場合で
は、軸に対する捩じりモーメントに対して弱く、その対
策として柱、梁架構の剛性を高めたり、壁を配置するな
どして、結果的に層の水平剛性を高め、架構の捩じり変
形に対して剛に対処しなければならなかった。2. Description of the Related Art Conventionally, for example, in the case of a frame having an open outer periphery or a structure in which seismic elements are concentrated in the center, the frame is weak against a torsional moment with respect to a shaft. As a result, it was necessary to increase the horizontal rigidity of the layer by increasing the rigidity of the frame and to arrange the walls, and to rigidly cope with the torsional deformation of the frame.
【０００３】[0003]
【発明が解決しようとする課題】しかし、例えば高層建
築物の場合、捩じり抵抗を向上させるだけのために、水
平剛性を高めることは、地震動の入力を増加させること
につながり得策ではない。また、架構に水平方向の制震
のためのダンパ等の制震装置を配置する場合、必要以上
に剛性を高めると制震効果が減少するという欠点を生ず
る。However, in the case of a high-rise building, for example, increasing the horizontal stiffness only to improve the torsional resistance is not advisable because it leads to an increase in the input of seismic motion. In addition, when a vibration control device such as a damper for horizontal vibration control is arranged on a frame, there is a disadvantage that if the rigidity is increased more than necessary, the vibration control effect is reduced.
【０００４】そこで、本発明は、必要以上に、架構の水
平方向の剛性を高めることなく、捩じりモーメントに耐
え得るような架構を提供することを目的とする。Accordingly, an object of the present invention is to provide a frame capable of withstanding a torsional moment without unnecessarily increasing the horizontal rigidity of the frame.
【０００５】[0005]
【課題を解決するための手段】建築物に於いて、各階の
床スラブと、該各階のスラブを連結する斜め部材で、捩
じりつる巻ばねを形成して、前記建築物の捩じり変形に
耐抗せしめる。ここに斜め部材として、各階の床スラブ
を連結する階段を利用することも可能である。In a building, a torsion coil spring is formed by a floor slab on each floor and a diagonal member connecting the slabs on each floor, and the building is twisted. Resist deformation. Here, as the diagonal member, a stair that connects floor slabs of each floor can be used.
【０００６】[0006]
【作用】建築物の各階の床スラブと例えば階段等、前記
床スラブを連結する斜め部材で形成される捩じりつる巻
ばねが、建築物の軸の周りの捩じりモーメントを受けた
場合生ずる応力は主として軸応力である。架構の軸の周
りに作用する捩じりモーメントをＭとし、捩じれ角変位
をφ、ばねの巻数（階数）をｎ、つる巻の平均径をＤ、
つる巻ばねの素線の径をｄで近似すれば、 φ＝（64Ｄｎ／Ｅｄ4 ）Ｍ で表され、捩じりばね定数は、 ｋT ＝Ｍ／φ＝Ｅｄ4 ／64Ｄｎ となる。When a torsion helical spring formed of a floor slab on each floor of a building and an oblique member connecting the floor slab, for example, a stair, receives a torsional moment about an axis of the building. The resulting stress is primarily axial stress. Let M be the torsional moment acting around the axis of the frame, φ be the torsional angular displacement, n be the number of turns (order) of the spring, D be the average diameter of the helical turns,
If the diameter of the wire of the helical spring is approximated by d, it is expressed as φ = (64Dn / Ed 4 ) M, and the torsional spring constant is k T = M / φ = Ed 4 / 64Dn.
【０００７】ここにＥは材料のヤング係数を示す。Here, E indicates the Young's modulus of the material.
【０００８】つまり、このように捩じりつる巻ばねと近
似される架構が、捩じりモーメントに耐抗することにな
る。That is, the frame approximated to the twisted helical spring as described above resists the torsional moment.
【０００９】[0009]
【実施例】図１は床スラブ１を階段等の斜め部材２で連
結し、架構に捩じりつる巻ばねを形成した斜視図であ
る。図中太い線で捩じりつる巻ばねのスケルトンを表
す。図２は図１で形成した捩じりつる巻ばねを抽出した
図である。捩じりつる巻ばねは水平力に対しては剛性、
耐力はないが軸周りの捩じりモーメントに対しては剛
性、耐力を持つ。図３は斜め部材２として１本の階段４
を利用し、床スラブ１全体を１つのばね部材３として、
捩じりつる巻ばねを形成した図であり、図４（ａ）、
（ｂ）は、斜め部材２として２本の階段４を利用し、床
スラブ１の半面を１つのばね部材３として捩じりつる巻
ばねを形成した図である。斜め部材２として階段４を利
用する場合は、捩じりつる巻ばねとしての連続性を満足
させるため、階段４の接合部及び面内の剛性、耐力を充
分確保する必要がある。1 is a perspective view in which a floor slab 1 is connected by an oblique member 2 such as a stair, and a torsion spring is formed in a frame. The skeleton of the torsion-wound spring is represented by the thick line in the figure. FIG. 2 is a diagram in which the twisted helical spring formed in FIG. 1 is extracted. The twisted helical spring is rigid against horizontal force,
There is no strength, but it has rigidity and strength against torsional moment around the axis. FIG. 3 shows one staircase 4 as the diagonal member 2.
Using the whole floor slab 1 as one spring member 3,
FIG. 4A is a view in which a torsion wound spring is formed, and FIG.
(B) is a diagram in which two stairs 4 are used as the diagonal member 2 and a helical spring is formed by twisting a half surface of the floor slab 1 as one spring member 3. When the stairs 4 are used as the diagonal members 2, it is necessary to ensure sufficient rigidity and proof strength at the joints and planes of the stairs 4 in order to satisfy the continuity of the twisted helical spring.
【００１０】[0010]
【発明の効果】床スラブと、該床スラブを連結する斜め
部材によって捩じりつる巻ばねを形成することにより、
建築物の軸に対する捩じりモーメントに対して剛性、耐
力を持たせることができる。According to the present invention, by forming a helical torsion spring by a floor slab and an oblique member connecting the floor slab,
Rigidity and strength can be given to the torsional moment with respect to the axis of the building.
【図１】床スラブ１を階段等の斜め部材２で連結し、架
構に捩じりつる巻ばねを形成した斜視図である。FIG. 1 is a perspective view in which a floor slab 1 is connected by an oblique member 2 such as a stair, and a helical spring is formed in a frame.
【図２】図１で形成した捩じりつる巻ばねを抽出した図
である。る。FIG. 2 is a diagram in which the twisted helical spring formed in FIG. 1 is extracted. You.
【図３】斜め部材２として１本の階段４を利用し、床ス
ラブ１全体を１つのばね部材３として、捩じりつる巻ば
ねを形成した図である。FIG. 3 is a view in which one staircase 4 is used as the diagonal member 2 and the entire floor slab 1 is used as one spring member 3 to form a twisted helical spring.
【図４】斜め部材２として２本の階段４を利用し、床ス
ラブ１の半面を１つのばね部材３として捩じりつる巻ば
ねを形成した図である。（ａ）はｎ階を（ｂ）はｎ−１
階を示す図である。FIG. 4 is a view in which two stairs 4 are used as the diagonal member 2 and a helical spring is formed by twisting a half surface of the floor slab 1 as one spring member 3; (A) is the nth floor, (b) is n-1
It is a figure showing a floor.
１・・・床スラブ、２・・・斜め部材、３・・・ばね部
材、４・・・階段DESCRIPTION OF SYMBOLS 1 ... Floor slab, 2 ... Diagonal member, 3 ... Spring member, 4 ... Stairs
Claims (2)
各階のスラブを連結する斜め部材で、捩じりつる巻ばね
を形成して、前記建築物の捩じり変形に耐抗せしめるこ
とを特徴とした捩じりつる巻ばね効果による耐捩じり架
構。1. In a building, a floor slab on each floor and an oblique member connecting the slabs on each floor form a torsion helical spring to resist torsional deformation of the building. A torsionally resistant frame with the effect of a twisted helical spring that is characterized by squeezing.
する階段を利用してなる請求項１記載の捩じりつる巻ば
ね効果による耐捩じり架構。2. The torsionally resistant frame according to claim 1, wherein a step connecting the floor slabs of each floor is used as the oblique member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23311294A JP2885089B2 (en) | 1994-09-28 | 1994-09-28 | Torsion-resistant frame by twisting helical spring effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23311294A JP2885089B2 (en) | 1994-09-28 | 1994-09-28 | Torsion-resistant frame by twisting helical spring effect |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0893055A JPH0893055A (en) | 1996-04-09 |
| JP2885089B2 true JP2885089B2 (en) | 1999-04-19 |
Family
ID=16949962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23311294A Expired - Lifetime JP2885089B2 (en) | 1994-09-28 | 1994-09-28 | Torsion-resistant frame by twisting helical spring effect |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2885089B2 (en) |
-
1994
- 1994-09-28 JP JP23311294A patent/JP2885089B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0893055A (en) | 1996-04-09 |
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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: 19990112 |