JPS61261555A - Reinforced concrete member - Google Patents
Reinforced concrete memberInfo
- Publication number
- JPS61261555A JPS61261555A JP10155285A JP10155285A JPS61261555A JP S61261555 A JPS61261555 A JP S61261555A JP 10155285 A JP10155285 A JP 10155285A JP 10155285 A JP10155285 A JP 10155285A JP S61261555 A JPS61261555 A JP S61261555A
- Authority
- JP
- Japan
- Prior art keywords
- reinforced concrete
- concrete member
- reinforcing bars
- hollow
- fiber
- 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.)
- Pending
Links
Landscapes
- Rod-Shaped Construction Members (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
(産業上の利用分野)
本発明は高層建築物等の構造物における柱材等に使用さ
れる鉄筋コンクリート部材に係るものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a reinforced concrete member used as a column material in structures such as high-rise buildings.
(従来の技術)
鉄筋コンクリート構造よりなる高層建築物においては自
重が大きくなり、靭性のある建築物を構成するには高強
度コンクリート、及び高強度で太径の鉄筋を使用しなけ
ればならない。また柱等の部材断面寸法はプランを有効
に利用するために小さくすることが望ましいが、所間寸
法を小さくすると、柱部材に加わる軸圧縮応力度が大き
くなり、また建築物の高さが高(なる程、転倒に対して
柱は引張応力または圧縮応力を大きく受けるようになる
。(Prior Art) A high-rise building made of reinforced concrete has a large self-weight, and in order to construct a building with toughness, high-strength concrete and high-strength, large-diameter reinforcing bars must be used. In addition, it is desirable to reduce the cross-sectional dimensions of members such as columns in order to effectively utilize the plan, but if the cross-sectional dimensions are reduced, the axial compressive stress applied to the column members will increase, and the height of the building will increase. (Indeed, the column will be subjected to a large amount of tensile or compressive stress when it falls.
一般に軸圧縮応力度がコンクリートの圧縮強度の3分の
1以上になると部材の靭性が期待できないとされている
が、従来角型フープ筋とスパイラルフープ筋とを組合わ
せた配筋構造と、高強度の普通コンクリートとによって
耐震部材を構成することが提案されていた。Generally speaking, it is said that the toughness of the member cannot be expected if the axial compressive stress is one-third or more of the compressive strength of concrete. It was proposed that earthquake-resistant members be made of high-strength ordinary concrete.
(発明が解決しようとする問題点)
前記従来の鉄筋コンクリート部材は、そのコンクリート
の圧縮強度の3分の2程度までは十分に耐震的であるこ
とが実証されているが、更に高層で、梁のスパンが大き
い場合にはコンクリート強度も更に高く、且つ引張に強
い材料の使用が要求される。(Problems to be Solved by the Invention) It has been proven that the conventional reinforced concrete members are sufficiently seismically resistant up to about two-thirds of the concrete's compressive strength. When the span is large, it is necessary to use materials with even higher concrete strength and high tensile strength.
(問題点を解決するための手段)
本発明はこのような要求を充足して、鉄筋コンクリート
構造の高層建築物における鉄筋コンクリート部材の上述
の問題を解決することを目的として提案されたものであ
って、外周面に沿って配設された主鉄筋と、同主鉄筋の
外周を囲繞する剪断補強鉄筋とが埋設され、且つ中空部
内周面に凹凸部を有する遠心力成形による中空筒状プレ
キャスト鉄筋コンクリート部材における前記中空部内に
、繊維補強コンクリートを横裂してなることを特徴とす
るものである。(Means for Solving the Problems) The present invention has been proposed for the purpose of satisfying such demands and solving the above-mentioned problems of reinforced concrete members in high-rise buildings with reinforced concrete structures. In a hollow cylindrical precast reinforced concrete member formed by centrifugal force forming, in which main reinforcing bars arranged along the outer circumferential surface and shear reinforcing reinforcing bars surrounding the outer periphery of the main reinforcing bars are buried, and the inner circumferential surface of the hollow part has uneven parts. It is characterized in that fiber-reinforced concrete is laterally split in the hollow portion.
(作用)
本発明に係る鉄筋コンクリート部材は前記したように、
その主体が遠心成形によって製作された高コンクリート
強度を有する中空筒状プレキャスト鉄筋コンクリート部
材より構成され、同部材外周面に沿って配設された主鉄
筋群の外周を囲繞する剪断補強鉄筋が、前記主鉄筋群で
囲まれたコンクリート断面部を押え込み、更に前記中空
筒状のプレキャスト鉄筋コンクリート部材の中空部に耐
震性能が優れた繊維補強コンクリートが横裂されるとと
もに、同繊維補強コンクリートが前記中空部内周面に設
けられた凹凸部を介して中空筒状プレキャスト鉄筋コン
クリート部材と一体化されるとともに同部材によって強
固に拘束され、かくして本発明の鉄筋コンクリート部材
は全体として高い靭性及び曲げ耐力を得ることができる
。(Function) As described above, the reinforced concrete member according to the present invention has the following features:
The main body is a hollow cylindrical precast reinforced concrete member with high concrete strength manufactured by centrifugal forming, and the shear reinforcing reinforcing bars surrounding the outer periphery of the main reinforcing bars arranged along the outer peripheral surface of the member are The cross-section of the concrete surrounded by the reinforcing bars is held down, and fiber-reinforced concrete with excellent seismic performance is laterally split into the hollow part of the hollow cylindrical precast reinforced concrete member, and the same fiber-reinforced concrete covers the inner peripheral surface of the hollow part. The reinforced concrete member of the present invention is integrated with the hollow cylindrical precast reinforced concrete member through the uneven portions provided therein and is firmly restrained by the same member, and thus the reinforced concrete member of the present invention can obtain high toughness and bending strength as a whole.
(発明の効果)
このように本発明によれば外周面に沿って配設された主
鉄筋と、同主鉄筋群の外周を囲繞する剪断補強鉄筋とよ
りなる補強鉄筋が配筋された遠心力成形による高強度の
中空筒状プレキャスト鉄筋コンクリート部材と、その中
空部に横裂され同中空部内周面の凹凸部を介して前記部
材と一体化された繊維補強コンクリートとの複合部材に
よって高い靭性と曲げ耐力とを有し、クラックが発生し
難く、隅角部も欠損し難い鉄筋コンクリート部材が構成
され、通常の鉄筋コンクリート部材よりも断面を節減で
き、また通常の建築物における場合と同程度の部材断面
でより高い建築物を構成しうるものである。(Effects of the Invention) According to the present invention, the centrifugal force generated by reinforcing reinforcing bars consisting of main reinforcing bars arranged along the outer peripheral surface and shear reinforcing reinforcing bars surrounding the outer periphery of the main reinforcing bars A composite member consisting of a high-strength hollow cylindrical precast reinforced concrete member formed by molding, and fiber-reinforced concrete that is laterally split in the hollow part and integrated with the member through the irregularities on the inner circumferential surface of the hollow part, has high toughness and bending properties. A reinforced concrete member is constructed that has a high yield strength, is difficult to crack, and is difficult to break at corners, and the cross section can be reduced compared to a normal reinforced concrete member, and the cross section of the member is the same as that of a normal building. It can be used to construct taller buildings.
(実施例) 以下本発明を図示の実施例について説明する。(Example) The present invention will be described below with reference to the illustrated embodiments.
(A)は遠心力成形によって製作された中空角筒状のプ
レキャスト鉄筋コンクリート部材で、外周面に沿って配
設された主鉄筋(1)及び同各主鉄筋(1)の外周を囲
繞する剪断補強鉄筋を構成する角型の7−プ筋(2)が
コンクリート(3)内に埋設されている。(A) is a hollow rectangular cylindrical precast reinforced concrete member manufactured by centrifugal force forming, with main reinforcing bars (1) arranged along the outer circumferential surface and shear reinforcement surrounding the outer periphery of each main reinforcing bar (1). Square-shaped 7-pipe reinforcement bars (2) constituting the reinforcing bars are buried in concrete (3).
更に中空部(4)の内周面には同面表層を除去すること
によって凹凸部が形成され、同中空部(4)には繊維補
強コンクリート(至)が打設されている。Further, an uneven portion is formed on the inner circumferential surface of the hollow portion (4) by removing the surface layer of the same surface, and fiber-reinforced concrete (to) is poured into the hollow portion (4).
なお実際の施工に際しては前記中空角筒状のプレキャス
ト鉄筋コンクリート部材(A)を所定位置に建付けたの
ち、現場においてその中空部(4)に繊維補強コンクリ
ートに)を打設充填するものであるが、或いはまた予め
前記中空部(4)の繊維補強コンクリート(ト)を工場
で打設充填して全体をプレキャスト鉄筋コンクリート部
材として製作するようにしてもよい。In actual construction, after the hollow rectangular cylindrical precast reinforced concrete member (A) is erected in a predetermined position, the hollow part (4) is poured and filled with fiber-reinforced concrete. Alternatively, the hollow portion (4) may be filled with fiber-reinforced concrete (g) in advance at a factory to manufacture the entire precast reinforced concrete member.
なお前記繊維補強コンクリート(至)に使用される繊維
としては、スチールファイバ、グラスファイバ、炭素繊
維等が使用されるが普通コンクリートを使用しても良い
。The fibers used in the fiber-reinforced concrete include steel fibers, glass fibers, carbon fibers, etc., but ordinary concrete may also be used.
図示の実施例は前記したように中空角筒状プレキャスト
鉄筋コンクリート部材(勾が遠心力成形によって製作さ
れているので高強度を有し、そのコンク!J −ト(3
)部に埋設された部材の外周面に沿って配筋された主鉄
筋(1)の外周に角形のフープ筋(2)が囲繞されてい
るので、前記主鉄筋(1)群で囲繞された矩形部分のコ
ンクリートが中空部(4)の方向に押え込まれ、且つま
た同中空部(4)内に横裂された耐震性能の優れた繊維
コンクIJ−) (B)が中空部(4)内周面に設けた
凹凸部を介してプレキャスト鉄筋コンクリート部材(A
)と一体化されることによって、繊維補強コンクリート
(]3)は強固に拘束され、部材全体として高い靭性及
び曲げ耐力を得ることができ、クラックが発生し難く、
隅角部が欠損し難い部材が構成される。As mentioned above, the illustrated embodiment is a hollow rectangular cylindrical precast reinforced concrete member (having high strength because the slope is manufactured by centrifugal force forming).
) The main reinforcing bars (1) arranged along the outer peripheral surface of the member buried in the section are surrounded by rectangular hoop bars (2), so the main reinforcing bars (1) are surrounded by the group of main reinforcing bars (1). The rectangular part of the concrete is pressed in the direction of the hollow part (4), and the fiber concrete with excellent seismic performance is split horizontally into the hollow part (4) (IJ-) (B) is the hollow part (4) The precast reinforced concrete member (A
), the fiber-reinforced concrete (]3) is firmly restrained, and the entire member has high toughness and bending strength, making it difficult for cracks to occur.
A member whose corner portions are not easily damaged is constructed.
従って前記鉄筋コンクリート部材によれば、通常の鉄筋
コンクリート部材よりも断面を小さくでき、また通常の
建築物と同程度の部材断面でより高い建築物を構成する
ことができる。Therefore, according to the reinforced concrete member, the cross section can be made smaller than that of a normal reinforced concrete member, and a taller building can be constructed with a member cross section comparable to that of a normal building.
また前記プレキャスト鉄筋コンクリート部材(勾の中空
部(4)の内周面異面層を除去することによって、同面
に凹凸部を形成するとともに、同面表層のレイタンスを
除去することができる。Furthermore, by removing the different surface layer on the inner circumferential surface of the precast reinforced concrete member (the hollow section (4)), it is possible to form an uneven portion on the same surface and to remove laitance on the surface layer of the same surface.
第2図は本発明の他の実施例を示し、プレキャスト鉄筋
コンクリート部材(A)の中空部(4)は同部材(Nの
一側面に連通している。FIG. 2 shows another embodiment of the present invention, in which a hollow portion (4) of a precast reinforced concrete member (A) communicates with one side of the member (N).
第3図は本発明の他の実施例を示し、前記中空部(4)
がプレキャスト鉄筋コンクリート部材(Nの相対する2
辺に連通している。FIG. 3 shows another embodiment of the present invention, in which the hollow part (4)
is a precast reinforced concrete member (N opposing 2
It is connected to the edge.
第4図は本発明の更に他の実施例を示し、プレキャスト
鉄筋コンクリート部材(勾の外周に突出するフープ筋(
5)が配筋され、同フープ筋(5)を介して前記部材(
5)が他部材と一体的に接合されるよl構成されている
。FIG. 4 shows still another embodiment of the present invention, which shows a precast reinforced concrete member (hoop reinforcements protruding from the outer periphery of the slope).
5) is arranged, and the member (
5) is configured to be integrally joined with other members.
なお第2図乃至第4図において、第1図に示す実施例と
均等部分には同一符号が附されている。In FIGS. 2 to 4, parts equivalent to the embodiment shown in FIG. 1 are given the same reference numerals.
以上本発明を実施例について説明したが、本発明は勿論
このような実施例にだけ局限されるものではなく、本発
明の精神を逸脱しない範囲内で樵々の設計の改変を施し
うるものである。Although the present invention has been described above with reference to embodiments, the present invention is, of course, not limited to such embodiments, and the design of the woodcutter may be modified without departing from the spirit of the present invention. be.
第1図乃至第4図は夫々本発明に係る鉄筋コンクリート
部材の各実施例を示す横断平面図である。
TA)・・・プレキャスト鉄筋コンクリート部材、(至
)・・・繊維補強コンクリート、(1)・・・主鉄筋、
(2)・・・フープ筋、(3)・・・コンク17−ト、
(4)・・・中空部、(5)・・・部材外周の突出フー
プ筋
代理人 弁理士 岡 本 重 文
外2名1 to 4 are cross-sectional plan views showing respective embodiments of reinforced concrete members according to the present invention. TA)... Precast reinforced concrete member, (to)... Fiber reinforced concrete, (1)... Main reinforcing bar,
(2)... Hoop muscle, (3)... Conc. 17-to,
(4)...Hollow part, (5)...Protruding hoop muscle on the outer periphery of the member Representative Patent attorney Shige Okamoto 2 other persons
Claims (1)
囲繞する剪断補強鉄筋とが埋設され、且つ中空部内周面
に凹凸部を有する遠心力成形による中空筒状プレキャス
ト鉄筋コンクリート部材における前記中空部内に、繊維
補強コンクリートを填装してなることを特徴とする鉄筋
コンクリート部材。In a hollow cylindrical precast reinforced concrete member formed by centrifugal force forming, in which main reinforcing bars arranged along the outer circumferential surface and shear reinforcing reinforcing bars surrounding the outer periphery of the main reinforcing bars are buried, and the inner circumferential surface of the hollow part has an uneven part. A reinforced concrete member, characterized in that the hollow portion is filled with fiber-reinforced concrete.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10155285A JPS61261555A (en) | 1985-05-15 | 1985-05-15 | Reinforced concrete member |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10155285A JPS61261555A (en) | 1985-05-15 | 1985-05-15 | Reinforced concrete member |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS61261555A true JPS61261555A (en) | 1986-11-19 |
Family
ID=14303589
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10155285A Pending JPS61261555A (en) | 1985-05-15 | 1985-05-15 | Reinforced concrete member |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61261555A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH028011A (en) * | 1988-06-28 | 1990-01-11 | Ohbayashi Corp | Concrete form device of centrifugal concrete molder |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS533416A (en) * | 1976-06-30 | 1978-01-13 | Yasuo Ogawa | Method of producing construction material |
JPS5931347A (en) * | 1982-12-15 | 1984-02-20 | 飛島建設株式会社 | Production of molded concrete product |
-
1985
- 1985-05-15 JP JP10155285A patent/JPS61261555A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS533416A (en) * | 1976-06-30 | 1978-01-13 | Yasuo Ogawa | Method of producing construction material |
JPS5931347A (en) * | 1982-12-15 | 1984-02-20 | 飛島建設株式会社 | Production of molded concrete product |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH028011A (en) * | 1988-06-28 | 1990-01-11 | Ohbayashi Corp | Concrete form device of centrifugal concrete molder |
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