JPH0415855B2 - - Google Patents
Info
- Publication number
- JPH0415855B2 JPH0415855B2 JP11785685A JP11785685A JPH0415855B2 JP H0415855 B2 JPH0415855 B2 JP H0415855B2 JP 11785685 A JP11785685 A JP 11785685A JP 11785685 A JP11785685 A JP 11785685A JP H0415855 B2 JPH0415855 B2 JP H0415855B2
- Authority
- JP
- Japan
- Prior art keywords
- column
- formwork
- frame
- concrete
- column formwork
- 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
Links
- 238000009415 formwork Methods 0.000 claims description 26
- 239000004567 concrete Substances 0.000 claims description 12
- 239000011150 reinforced concrete Substances 0.000 claims description 7
- 239000011372 high-strength concrete Substances 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 229920006253 high performance fiber Polymers 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Rod-Shaped Construction Members (AREA)
Description
【発明の詳細な説明】
(a) 産業上の利用分野
本発明は、高層、例えば30階を超える鉄筋コン
クリート（RC）造の建造物において、その柱に
適用する好適な柱構造に関する。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a column structure suitable for use in columns in high-rise, for example, reinforced concrete (RC) buildings of over 30 floors.
(b) 従来の技術
最近、高層の建造物を鉄筋コンクリート造で構
築する方式が用いられつつある。(b) Conventional technology Recently, a method of constructing high-rise buildings using reinforced concrete is being used.
(c) 発明が解決しようとする問題点
しかし、柱に生じる軸力は、建物が高層化する
につれて大きくなり、通常の鉄筋ではその負担に
困難を伴うので、何らかの補強部材を設け、軸力
を効果的に支持出来る柱構造の開発が望まれてい
た。(c) Problems to be Solved by the Invention However, the axial force generated in columns increases as buildings become taller, and it is difficult for ordinary reinforcing bars to bear the load. There was a desire to develop a column structure that could provide effective support.
本発明は、上記した事情に鑑み、軸力に対して
強い抵抗力を付与し得る鉄筋コンクリート製の柱
構造を提供することを目的とするものである。 In view of the above-described circumstances, the present invention aims to provide a column structure made of reinforced concrete that can provide strong resistance to axial force.
(d) 問題点を解決するための手段
即ち、本発明は、柱２の外周部に柱型枠７を設
け、該柱型枠７を、超高強度コンクリートからな
る枠体７ａと該枠体７ａに軸方向の圧縮のプレス
トレスを与える圧縮力付加手段７ｄから形成し、
更に前記柱型枠７内に現場打ちコンクリート６を
打設充填して構成される。(d) Means for solving the problem That is, the present invention provides a column formwork 7 on the outer periphery of the column 2, and combines the column formwork 7 with a frame body 7a made of ultra-high strength concrete and the frame body. It is formed from compressive force applying means 7d that applies compressive prestress in the axial direction to 7a,
Further, cast-in-place concrete 6 is cast and filled into the column formwork 7.
なお、括弧内の番号は、図面における対応する
要素を示す、便宜的なものであり、従つて、本記
述は図面上の記載に限定拘束されるものではな
い。以下の「(e) 作用」の欄についても同様であ
る。 Note that the numbers in parentheses are for convenience and indicate corresponding elements in the drawings, and therefore, this description is not limited to the descriptions in the drawings. The same applies to the column "(e) Effect" below.
(e) 作用
上記した構成により、本発明は、枠体７ａに作
用するプレストレスが引張力に対しては、枠体７
ａのプレストレスと当該引張力が釣り合う時点ま
で、圧縮力に対しては、プレストレスと圧縮力の
合計が枠体７ａの圧縮強度に達する時点まで抵抗
し、それだけ柱２の軸力に対する抵抗力を高める
ように作用する。(e) Effect With the above-described configuration, the present invention has the advantage that the prestress acting on the frame 7a is
Until the prestress of a and the tensile force are balanced, the compressive force will be resisted until the sum of the prestress and the compressive force reaches the compressive strength of the frame 7a, and the resistance to the axial force of the column 2 will increase accordingly. It acts to increase the
(f) 実施例
以下、本発明の実施例を図面に基づき説明す
る。(f) Embodiments Hereinafter, embodiments of the present invention will be described based on the drawings.
第１図は本発明による柱構造の一実施例を示す
平面図、
第２図は第１図のの側面図、
第３図は柱型枠の接続態様の一例を示す断面
図、
第４図は本発明の別の実施例を示す平面図であ
る。 FIG. 1 is a plan view showing an embodiment of the column structure according to the present invention, FIG. 2 is a side view of the column structure shown in FIG. 1, FIG. FIG. 3 is a plan view showing another embodiment of the present invention.
建造物１は、第２図に示すように、床４に対し
て図中上下方向に設けられた柱２を有しており、
柱２は、第１図に示すように、柱型枠７を有して
いる。柱型枠７は、柱２の外周を形成する形で第
２図上下方向、即ち柱の軸心に沿つた方向に四角
筒状に形成された枠体７ａを有しており、枠体７
ａはプレキヤストされた超高強度コンクリート
（例えば、圧縮強度が1000Kg／cm2程度のコンクリ
ート）から形成されている。枠体７ａ中には、複
数の主筋７ｂが枠体７ａの外周に沿つた形で配置
されており、主筋７ｂの周囲には、フープ筋７ｃ
が、第１図上下方向に所定の間隔で設けられてい
る。また、枠体７ａの、軸心に沿つた方向、即ち
柱２の上下方向には、PC鋼線７ｄが張設され、
枠体７ａに対して圧縮のプレストレスを与えてい
る。 As shown in FIG. 2, the building 1 has pillars 2 installed vertically in the figure with respect to the floor 4.
The column 2 has a column formwork 7, as shown in FIG. The column formwork 7 has a frame 7a that forms the outer periphery of the column 2 and is formed into a rectangular cylinder shape in the vertical direction in FIG. 2, that is, in the direction along the axis of the column.
A is formed from precast ultra-high strength concrete (for example, concrete with a compressive strength of about 1000 kg/cm 2 ). A plurality of main reinforcements 7b are arranged in the frame 7a along the outer periphery of the frame 7a, and hoop reinforcements 7c are arranged around the main reinforcements 7b.
are provided at predetermined intervals in the vertical direction in FIG. Further, a PC steel wire 7d is stretched in the direction along the axis of the frame 7a, that is, in the vertical direction of the column 2,
Compressive prestress is applied to the frame 7a.
また、各枠体７ａの上下端部には、第３図に示
すように、主筋７ｂに接続された公知のジヨイン
ト金物７ｅが設けられており、各柱型枠７は、上
下方向に前記ジヨイント金物７ｅを介して接続さ
れている。 Further, as shown in FIG. 3, the upper and lower ends of each frame 7a are provided with known joint hardware 7e connected to the main reinforcement 7b, and each column form 7 is provided with the joints in the vertical direction. They are connected via hardware 7e.
ところで、柱型枠７に囲まれた、第１図断面円
形の部分には、柱型枠７と同様に主筋２ａが所定
の間隔で、柱２の上下方向に設けられており、そ
れ等主筋２ａには、フープ筋２ｂが、第２図に示
すように、配置されている。また、柱型枠７に囲
まれた第１図断面円形の部分には、現場打ちのコ
ンクリート６が打設充填されている。 By the way, in the part surrounded by the column formwork 7 and having a circular cross section in FIG. Hoop lines 2b are arranged in 2a as shown in FIG. Further, a portion surrounded by the column formwork 7 and having a circular cross section in FIG. 1 is filled with cast-in-place concrete 6.
建造物１は、以上のような構成を有するので、
例えば、柱型枠７の枠体７ａを1000Kg／cm2の超高
強度コンクリートから形成し、PC鋼線７ｄに500
Kg／cm2の引張力を作用させた状態で柱型枠７を形
成すると、枠体７ａには、500Kg／cm2の圧縮力が
プレストレスとして枠体７ａの軸方向、即ち、第
２図上下方向に作用することになる。この状態
で、柱２に、第２図上下方向に引つ張り力が作用
したとすると、柱２は、当該引張力により、枠体
７ａに作用している500Kg／cm2の圧縮力が打ち消
されるまで、引張に対して抵抗することが出来
る。 Since the building 1 has the above configuration,
For example, the frame body 7a of the column formwork 7 is formed from ultra-high strength concrete of 1000 kg/ cm2 , and the PC steel wire 7d is
When the column form 7 is formed with a tensile force of Kg/cm 2 applied, a compressive force of 500 Kg/cm 2 is applied to the frame 7a as a prestress in the axial direction of the frame 7a, that is, as shown in FIG. It will act in the vertical direction. In this state, if a tensile force is applied to the column 2 in the vertical direction in FIG. It can resist tension until it is pulled.
また、圧縮力が、柱２に作用した場合には、枠
体７ａを構成する超高強度コンクリートには既に
500Kg／cm2の圧縮力が作用しているので、当該圧
縮力が1000Kg／cm2に達するまで、圧縮に対して抵
抗するするうことが出来る。 Furthermore, when compressive force is applied to the column 2, the ultra-high strength concrete constituting the frame 7a is already affected.
Since a compression force of 500Kg/cm 2 is acting, it is possible to resist compression until the compression force reaches 1000Kg/cm 2 .
なお、上述の実施例は、枠体７ａに圧縮力を作
用させる圧縮力付加手段としてPC鋼線７ｄを用
いた場合について述べたが、圧縮力付加手段とし
ては、PC鋼線７ｄの他に、アラミド繊維や炭素
繊維等の高性能繊維を用いることも当然可能であ
る。 In addition, although the above-mentioned Example described the case where the PC steel wire 7d was used as a compressive force adding means to apply a compressive force to the frame 7a, as a compressive force adding means, in addition to the PC steel wire 7d, Of course, it is also possible to use high performance fibers such as aramid fibers and carbon fibers.
なお、柱２を構築時には、柱型枠７を型枠とし
て使用し、柱型枠７を建て込んだ後にコンクリー
ト６を柱型枠７内部に打設して、柱２を構築す
る。 In addition, when constructing the column 2, the column formwork 7 is used as a formwork, and after the column formwork 7 is erected, concrete 6 is cast inside the column formwork 7, and the column 2 is constructed.
また、柱型枠７としては、第２図に示すよう
に、柱型枠７自体に主筋７ｂを設ける構造の他
に、第４図に示すように、柱型枠７自体には、主
筋を設けず、現場打ちコンクリート６の充填され
る部分に全ての主筋を設ける構造を用いることも
可能である。なお、第１図に示すように、主筋
を、柱型枠７及び現場打ちコンクリート６の充填
される部分とに分離して設けることにより、現場
打ちコンクリート６の打設される空間中の配筋密
度を低下させることが出来るので、現場打ちコン
クリートとして品質の高い低スランプのコンクリ
ートの使用が可能となる。 In addition, as for the column formwork 7, as shown in FIG. 2, in addition to the structure in which main reinforcements 7b are provided on the column formwork 7 itself, as shown in FIG. It is also possible to use a structure in which all the main reinforcing bars are provided in the portion where the cast-in-place concrete 6 is filled without providing them. In addition, as shown in FIG. 1, by providing the main reinforcement separately for the column formwork 7 and the part where the cast-in-place concrete 6 is filled, the reinforcement in the space where the cast-in-place concrete 6 is placed can be improved. Since the density can be lowered, it becomes possible to use high-quality, low-slump concrete as cast-in-place concrete.
(g) 発明の効果
以上、説明したように、本発明によれば、柱２
の外周部に柱型枠７を設け、該柱型枠７を、超高
強度コンクリートからなる枠体７ａと該枠体７ａ
に軸方向の圧縮のプレストレスを与えるPC鋼線
７ｄ等の圧縮力付加手段から形成し、更に前記柱
型枠７内に現場打ちコンクリート６を打設充填し
て構成したので、柱型枠７により、柱２に、圧縮
及び引張等の軸力に対して高度の抵抗力を付加す
ることが出来るようになり、鉄筋コンクリート
（RC）造の建造物においても、信頼性の高い柱２
を構築することが出来る。(g) Effect of the invention As explained above, according to the present invention, pillar 2
A column formwork 7 is provided on the outer periphery of the column formwork 7, and the column formwork 7 is divided into a frame body 7a made of ultra-high strength concrete and the frame body 7a.
The column formwork 7 is formed from a compressive force applying means such as a PC steel wire 7d which applies compressive prestress in the axial direction to the column formwork 7. This makes it possible to add a high degree of resistance to axial forces such as compression and tension to the column 2, making it possible to add a highly reliable column 2 even in reinforced concrete (RC) buildings.
can be constructed.
第１図は本発明による柱構造の一実施例を示す
平面図、第２図は第１図の柱の側面図、第３図は
柱型枠の接続態様の一例を示す断面図、第４図は
本発明の別の実施例を示す平面図である。
２……柱、２ａ，７ｂ……主筋、６……現場打
ちコンクリート、７……柱型枠、７ａ……枠体、
７ｄ……圧縮力付加手段（PC鋼線）。
FIG. 1 is a plan view showing one embodiment of a column structure according to the present invention, FIG. 2 is a side view of the column shown in FIG. 1, FIG. The figure is a plan view showing another embodiment of the invention. 2... Column, 2a, 7b... Main reinforcement, 6... Cast-in-place concrete, 7... Column formwork, 7a... Frame body,
7d... Compressive force applying means (PC steel wire).
Claims (1)
外周部に柱型枠を設け、 該柱型枠を、超高強度コンクリートからなる枠
体と該枠体に軸方向の圧縮のプレストレスを与え
る圧縮力付加手段から形成し、 更に前記柱型枠内に現場打ちコンクリートを打
設充填して構成した柱構造。 ２ 柱を構成する主筋を柱型枠と該柱型枠内の現
場打ちコンクリートが打設充填される部分に分散
して設けたことを特徴とする特許請求の範囲第１
項記載の柱構造。[Scope of Claims] 1. A column made of reinforced concrete, with a column formwork provided on the outer periphery of the column, and the column formwork is combined with a frame made of ultra-high strength concrete, and the frame is prestressed with axial compression. A column structure is formed from compressive force applying means that provides compressive force, and is further constructed by pouring and filling the column formwork with cast-in-place concrete. 2. Claim 1, characterized in that the main reinforcing bars constituting the columns are distributed in the column formwork and the part of the column formwork where cast-in-place concrete is poured and filled.
Column structure as described in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11785685A JPS61277730A (en) | 1985-05-31 | 1985-05-31 | Pillar structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11785685A JPS61277730A (en) | 1985-05-31 | 1985-05-31 | Pillar structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61277730A JPS61277730A (en) | 1986-12-08 |
| JPH0415855B2 true JPH0415855B2 (en) | 1992-03-19 |
Family
ID=14721984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11785685A Granted JPS61277730A (en) | 1985-05-31 | 1985-05-31 | Pillar structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61277730A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0791862B2 (en) * | 1985-11-15 | 1995-10-09 | 飛島建設株式会社 | Concrete column / beam structure and its construction method |
| JPH0730598B2 (en) * | 1987-12-10 | 1995-04-05 | 株式会社九段建築研究所 | Building equipment with precast concrete columns |
| JPH0652001B2 (en) * | 1987-12-14 | 1994-07-06 | 清水建設株式会社 | Structural columns and frame structures |
| JPH02200944A (en) * | 1989-01-30 | 1990-08-09 | Tokyu Constr Co Ltd | Hollow pca column |
| JPH0765332B2 (en) * | 1989-03-07 | 1995-07-19 | 住友建設株式会社 | PC pillar construction method |
-
1985
- 1985-05-31 JP JP11785685A patent/JPS61277730A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61277730A (en) | 1986-12-08 |
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