JPS59199952A - Casting of concrete structural member - Google Patents

Casting of concrete structural member

Info

Publication number
JPS59199952A
JPS59199952A JP7474783A JP7474783A JPS59199952A JP S59199952 A JPS59199952 A JP S59199952A JP 7474783 A JP7474783 A JP 7474783A JP 7474783 A JP7474783 A JP 7474783A JP S59199952 A JPS59199952 A JP S59199952A
Authority
JP
Japan
Prior art keywords
concrete
structural member
pouring
structural
reinforcing bars
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
Application number
JP7474783A
Other languages
Japanese (ja)
Inventor
直 岡本
澄行 松原
隆 新保
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui Construction Co Ltd
Original Assignee
Mitsui Construction Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsui Construction Co Ltd filed Critical Mitsui Construction Co Ltd
Priority to JP7474783A priority Critical patent/JPS59199952A/en
Publication of JPS59199952A publication Critical patent/JPS59199952A/en
Pending legal-status Critical Current

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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】 (a)  発明の技術分野 本発明は、鉄筋を用いないで柱や梁等のコンクリート構
造部材を打設するコンクリート構造部材の打設方法に関
する。
DETAILED DESCRIPTION OF THE INVENTION (a) Technical Field of the Invention The present invention relates to a method for casting concrete structural members such as columns and beams without using reinforcing bars.

(b)  技術の背景 柱や梁等の構造部材においでは、圧縮力をコンクリート
部分で受は持ち、引張り力を鉄筋が受は持つ形での鉄筋
コンクリート構造が多用されている。
(b) Background of the technology For structural members such as columns and beams, reinforced concrete structures are often used, in which the compressive force is carried by the concrete part, and the tensile force is carried by the reinforcing bars.

(C)従来技術と問題点 第3図は従来のコンクリート構造部材の一例を示す正面
図、第4図は第3図の平面図である。
(C) Prior Art and Problems FIG. 3 is a front view showing an example of a conventional concrete structural member, and FIG. 4 is a plan view of FIG. 3.

従来、この種のコンクリート構造部材1は、例えば柱7
について述べると、第3図及び第4図に示すように、主
筋2とせん断補強筋3を有しており、それ等はいずれも
鉄筋からなるものであった。従って、当然のことながら
、コンクリート打設時には、主筋2及び補強筋3に使用
する鉄筋の切断、曲げ加工が必要となり、作業に多くの
労力と時間を要する不都合があった。
Conventionally, this type of concrete structural member 1 includes, for example, a column 7.
Specifically, as shown in FIGS. 3 and 4, it had main reinforcement 2 and shear reinforcing reinforcement 3, both of which were made of reinforcing steel. Therefore, as a matter of course, when concrete is poured, it is necessary to cut and bend the reinforcing bars used for the main bars 2 and reinforcing bars 3, which has the disadvantage of requiring a lot of labor and time.

また、コンクリート打設後のコンクリートの中性化に伴
ない、鉄筋には錆が発生し、建造物の耐久性が大幅に損
なわする欠点がある。
Furthermore, as the concrete is neutralized after it is poured, rust occurs in the reinforcing bars, which significantly reduces the durability of the structure.

しかも、従来のこうしたコンクリート構造部材はいずれ
もコンクリート打設時に型枠を必要とし、コンクリート
打設作業は時間のかかる繁雑な作業となっていた。
Furthermore, all of these conventional concrete structural members require formwork during concrete pouring, making concrete pouring work time consuming and complicated.

(d)  発明の目的 本発明は、ii工述の欠点を解消すべく、鉄筋を使用す
る必要がなく、従って長期間の耐久性に富み、県にはコ
ンクリート打設時の型枠も必要としないコンクリート構
造部材の打設方法を提供することを目的とするものであ
る。
(d) Purpose of the Invention The present invention eliminates the need for the use of reinforcing bars in order to eliminate the drawbacks of ii. The purpose of this invention is to provide a method for placing concrete structural members that does not require

(e)  発明の構成 即ち、本発明は、不錆性高性能繊維の混入された造形素
材から形成され、かつ内部にコンクリート打設空間の形
成された筒状の繊維補強構造材を用い、油記コンクリニ
ド打設空間中に、コンクリートを注入打設することによ
り、柱や梁等の構造部材を打設するようにして構成され
る。
(e) Structure of the Invention In other words, the present invention uses a cylindrical fiber-reinforced structural material made of a modeling material mixed with rust-resistant high-performance fibers and has a concrete placement space formed inside. Concrete is injected into the concrete placement space to allow structural members such as columns and beams to be placed.

(f)  発明の実施例 以下、図面に基き、本発明の詳細な説明する。(f) Examples of the invention Hereinafter, the present invention will be described in detail based on the drawings.

第1図は本発明を柱の打設時に適用した際の断面図、第
2図は本発明を梁の打設時に適用した際の断面図である
FIG. 1 is a cross-sectional view when the present invention is applied to the driving of columns, and FIG. 2 is a cross-sectional view when the present invention is applied to the driving of beams.

繊維補強構造材5は、第1図に示すように、閉塞した4
角形状の断面を有しでおり、全体が紙面と直角方向に連
続した筒状に形成されている。構造材5の内部にはコン
クリート打設空間5aが形成されており、更に構造材5
の内壁5bには溝や凹凸等のシアコネクタ5dが多数形
成されでいる。また、構造材5は炭素繊維やアラミツド
繊維等の錆の生じることのない不錆性高性能繊維の短片
が混入されたコンクリート、セラミック等の造形素材か
ら形成されている。
As shown in FIG.
It has a rectangular cross section, and the whole is formed into a continuous cylindrical shape in a direction perpendicular to the plane of the paper. A concrete casting space 5a is formed inside the structural member 5, and the structural member 5
A large number of shear connectors 5d, such as grooves and irregularities, are formed on the inner wall 5b. Further, the structural material 5 is formed from a shaped material such as concrete or ceramic mixed with short pieces of rust-free high-performance fiber such as carbon fiber or aramid fiber.

繊維補強構造材5は、以上のような構成を有するので、
構造材5を用いて、コンクリート構造部材1である柱7
を打設する際には、第1図に示すように、柱を打設すべ
き位置に、当該柱の打設外形寸法に一致した外形寸法を
有する構造材5を設置し、そのコンクリート打設空間5
a中にコンクリート6を注入打設する。この際、構造材
5は型枠として作用し、従ってコンクリ   ′−ト6
は構造材5中で外部に漏れ出ることなく打設される。
Since the fiber reinforced structural material 5 has the above configuration,
Column 7 which is concrete structural member 1 is constructed using structural material 5.
When pouring concrete, as shown in Figure 1, a structural member 5 having external dimensions matching the external dimensions of the column is installed at the position where the column is to be poured, and the concrete is poured. space 5
Concrete 6 is poured into the hole a. At this time, the structural material 5 acts as a formwork, and therefore the concrete 6
is cast in the structural material 5 without leaking to the outside.

構造材5の内壁5bにはシアコネクタ5dが形成されて
いるので、打設されたコンクリート6と構造材5はシア
コネクタ5dを介して緊密に一体化される。また、構造
材5中には既に述べたように、炭素繊維、アラミツド繊
維等の高性能繊維の短片が混入されているので、混入さ
れた高性能繊維が構造材5を形成するコンクリートやセ
ラミック等の造形素材の引っ張り強度を大幅に高め、コ
ンクリート中の鉄筋と同様な役割を果す・ことになる。
Since the shear connector 5d is formed on the inner wall 5b of the structural member 5, the poured concrete 6 and the structural member 5 are tightly integrated via the shear connector 5d. Furthermore, as mentioned above, short pieces of high-performance fibers such as carbon fiber and aramid fiber are mixed into the structural material 5, so that the mixed high-performance fibers are used in the concrete, ceramic, etc. that form the structural material 5. It greatly increases the tensile strength of the building material, and plays a role similar to that of reinforcing steel in concrete.

即ち、高性能繊維の混入された構造材5は、空間5aに
コンクリート6が打設された状態で、従来の主筋2及び
せん断補強筋3としての役割を果たし、従って空間5a
中のコンクリート6には主筋2等の何らの鉄筋も必要と
しない。
That is, the structural material 5 mixed with high-performance fibers plays the role of the conventional main reinforcing bars 2 and shear reinforcing bars 3 when concrete 6 is placed in the space 5a.
The concrete 6 inside does not require any reinforcing bars such as the main bars 2.

表1に、高性能連続繊維である、炭素繊維、アラミツド
繊維と鋼とを比較した物性値を示すが、この表からも明
らかな通り、高性能連続繊維の強度は、鋼の数倍にも達
する反面、密度は1/4〜115と極めて軽量である。
Table 1 shows the physical properties of carbon fibers and aramid fibers, which are high-performance continuous fibers, compared with steel. As is clear from this table, the strength of high-performance continuous fibers is several times that of steel. However, it is extremely lightweight with a density of 1/4 to 115.

表1 なお、上述の実施例は、繊維補強構造材5を用いて柱7
を打設する場合についで述べたが、打設されるコンクリ
ート構造部材1としでは、柱7に限らず、第2図に示す
ように、梁9等その他のものであっても良く、また構造
材5の厚みTも荷重の作用部位、態様に応じて自由に設
定することができる。
Table 1 In addition, in the above-mentioned embodiment, the pillar 7 is
As mentioned above, the concrete structural member 1 to be cast is not limited to the pillar 7, but may also be a beam 9 or other material as shown in FIG. The thickness T of the material 5 can also be freely set depending on the location and mode of load application.

(g)  発明の詳細 な説明したように、本発明によれば、炭素繊維やアラミ
ツド繊維等の錆の生じることのない不錆性高性能繊維の
混入されたコンクリート、セラミック等の造形素材から
形成され、かつ内部にコンクリート打設空間5aの形成
された筒状の繊維補強構造材5を用い、前記コンクリー
ト打設空間5a中にコンクリートを注入打設することに
より、柱7や梁9等の構造部材1を打設するようにした
ので、構造材5がコンクリート打設時には型枠として機
能し、打設後は構造部材1中の構造材として機能させる
ことができコンクリート打設時の型枠を別に用意する必
要がなくなるばかりか、従来のように鉄筋の主筋2やせ
ん断補強筋3を構造部材1中に設ける必要が無くなり、
コンクリート打設時の鉄筋の加工作業を不要とすること
ができる。
(g) As described in detail, according to the present invention, a molded material is formed from a molding material such as concrete or ceramic mixed with rust-proof high-performance fiber such as carbon fiber or aramid fiber. By using a cylindrical fiber-reinforced structural material 5 with a concrete casting space 5a formed therein and pouring concrete into the concrete casting space 5a, the structure of columns 7, beams 9, etc. Since the member 1 is cast, the structural member 5 functions as a formwork during concrete pouring, and after pouring, it can function as a structural member in the structural member 1, and the formwork during concrete pouring. Not only does it eliminate the need to prepare separately, but it also eliminates the need to provide the main reinforcing bars 2 and shear reinforcing bars 3 in the structural member 1 as in the past.
It is possible to eliminate the need for processing work on reinforcing bars during concrete pouring.

また、構造部材1中には鉄筋が配筋されることがないの
で、コンクリートの中性化が進行しても、鉄筋の発錆に
よる建造物の耐久性の低下等は一切生じることがなく、
長期間の耐久性に富む構造部材1の提供が可能となる。
In addition, since no reinforcing bars are placed in the structural member 1, even if the concrete progresses to carbonation, there will be no reduction in the durability of the building due to rusting of the reinforcing bars.
It becomes possible to provide a structural member 1 that is highly durable for a long period of time.

また、不錆性高性能繊維は、表1に示すように、鋼に比
して極めて軽量かつはるかに強靭なために、所定の強度
を有する柱7又は梁9等に使用する繊維重量は、同等の
強度を得るために必要な鉄筋量に比してはるかに少なく
て済み、コンクリート構造部材1の軽量小型化に寄与す
ることができる。
In addition, as shown in Table 1, anti-rust high performance fibers are extremely lightweight and much stronger than steel, so the weight of the fibers used for columns 7 or beams 9 etc. with a predetermined strength is The amount of reinforcing bars required to obtain the same strength is much smaller, and can contribute to making the concrete structural member 1 lighter and smaller.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明を柱の打設時に適用した際の断面図、第
2図は本発明を梁の打設時に適用した際の断面図、第3
図は従来のコンクリート構造部材の一例を示す正面図、
第4図は第3図の平面図である。 1・・・・・・・・・・コンクリート構造部材5・・・
・・・・・・・・・繊維補強構造材5a・・・・・・・
・・コンクリート打設空間6・・・・・・・・・・・コ
ンクリート7・・・・・・・・・・・・柱 9・・・・・・・・・・・梁 特許出願人   三井建設株式会社 代理人弁理士相田伸二 第1図 第2図 L(9) 24 第3図 第4図
Figure 1 is a cross-sectional view when the present invention is applied when pouring columns, Figure 2 is a cross-sectional view when the present invention is applied when pouring beams, and Figure 3 is a cross-sectional view when the present invention is applied when pouring beams.
The figure is a front view showing an example of a conventional concrete structural member.
FIG. 4 is a plan view of FIG. 3. 1... Concrete structural member 5...
......Fiber reinforced structural material 5a...
...Concrete pouring space 6...Concrete 7...Column 9...Beam Patent applicant Mitsui Kensetsu Co., Ltd. Patent Attorney Shinji Aida Figure 1 Figure 2 L (9) 24 Figure 3 Figure 4

Claims (1)

【特許請求の範囲】[Claims] 柱や梁等のコンクリート構造部材を打設する際において
、不錆性高性能繊維の混入された造形素材から形成され
、かつ内部にコンクリート打設空間の形成された筒状の
繊維補強構造材を用い、前記コンクリート打設空間中に
、コンクリートを注入打設することにより、前記構造部
材を打設するようにして構成したコンクリート構造部材
の打設方法。
When pouring concrete structural members such as columns and beams, we use a cylindrical fiber-reinforced structural material that is made from a modeling material mixed with rust-resistant high-performance fibers and has a concrete pouring space inside. A method for placing a concrete structural member, wherein the structural member is placed by pouring concrete into the concrete placing space.
JP7474783A 1983-04-27 1983-04-27 Casting of concrete structural member Pending JPS59199952A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7474783A JPS59199952A (en) 1983-04-27 1983-04-27 Casting of concrete structural member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7474783A JPS59199952A (en) 1983-04-27 1983-04-27 Casting of concrete structural member

Publications (1)

Publication Number Publication Date
JPS59199952A true JPS59199952A (en) 1984-11-13

Family

ID=13556148

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7474783A Pending JPS59199952A (en) 1983-04-27 1983-04-27 Casting of concrete structural member

Country Status (1)

Country Link
JP (1) JPS59199952A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62133235A (en) * 1985-12-02 1987-06-16 三井建設株式会社 Centrifugal force molded concrete member
JPS6486852A (en) * 1987-09-30 1989-03-31 Nippon Kokan Kk Preparation of raw 'go'
JPH0384328U (en) * 1989-12-18 1991-08-27
JPH03293473A (en) * 1990-04-09 1991-12-25 Tosutemu Sera Kk Thin cement cast-in form
JPH0625418U (en) * 1992-07-27 1994-04-08 清水建設株式会社 Precast concrete members for building concrete columns

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62133235A (en) * 1985-12-02 1987-06-16 三井建設株式会社 Centrifugal force molded concrete member
JPS6486852A (en) * 1987-09-30 1989-03-31 Nippon Kokan Kk Preparation of raw 'go'
JPH0384328U (en) * 1989-12-18 1991-08-27
JPH03293473A (en) * 1990-04-09 1991-12-25 Tosutemu Sera Kk Thin cement cast-in form
JPH0625418U (en) * 1992-07-27 1994-04-08 清水建設株式会社 Precast concrete members for building concrete columns

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