JPH05106339A - Precast concrete mold for jointing concrete - Google Patents

Precast concrete mold for jointing concrete

Info

Publication number
JPH05106339A
JPH05106339A JP26613991A JP26613991A JPH05106339A JP H05106339 A JPH05106339 A JP H05106339A JP 26613991 A JP26613991 A JP 26613991A JP 26613991 A JP26613991 A JP 26613991A JP H05106339 A JPH05106339 A JP H05106339A
Authority
JP
Japan
Prior art keywords
concrete
precast concrete
precast
formwork
plate
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
JP26613991A
Other languages
Japanese (ja)
Inventor
Katsuhiko Ishikawa
克彦 石川
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.)
Kajima Corp
Original Assignee
Kajima Corp
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 Kajima Corp filed Critical Kajima Corp
Priority to JP26613991A priority Critical patent/JPH05106339A/en
Publication of JPH05106339A publication Critical patent/JPH05106339A/en
Pending legal-status Critical Current

Links

Landscapes

  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)

Abstract

PURPOSE:To improve the quality and integrity at the joint section of a reinforced concrete structure. CONSTITUTION:A precast concrete plate 2 is used as the main body of a jointing mold 1. Multiple reinforcing bar through holes 3 are provided at the interval between reinforcing bars 5 of a skeleton in the thickness direction of the precast concrete plate 2. Shear cotters 4 are formed on the surface of the precast concrete plate 2. The reinforcing bars 5 of the skeleton are inserted into the jointing mold l installed at a concrete joint section. Concrete is placed on one side of the jointing mold 1, then concrete is placed on the opposite side of the jointing mold 1, and the jointing mold 1 is buried.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は鉄筋コンクリート構造物
の打継ぎ部に用いるためのプレキャストコンクリート型
枠に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a precast concrete formwork for use in a jointing portion of a reinforced concrete structure.

【0002】[0002]

【従来の技術】鉄筋コンクリート構造物の建設過程で
は、必ずコンクリートの打継ぎ部が生じる。
2. Description of the Related Art In the process of constructing a reinforced concrete structure, a concrete joint is always generated.

【0003】鉄筋コンクリート構造の建物の壁あるいは
床等のコンクリート工事では、打設区画の周囲に打継ぎ
箇所が生じ、従来、その打継ぎ部の型枠にはメタルラス
あるいはベニヤ板等が用いられている。
In concrete construction such as walls or floors of buildings having a reinforced concrete structure, a splicing place is formed around a casting section, and conventionally, a metal lath or a veneer plate is used as a formwork of the splicing portion.

【0004】[0004]

【発明が解決しようとする課題】しかし、打継ぎ部の型
枠にメタルラス、ベニヤ板等を用いる場合、次のような
問題点がある。
However, when a metal lath, a veneer plate or the like is used for the formwork of the splicing section, there are the following problems.

【0005】(1) メタルラスの場合 打継ぎ部に用いるメタルラスの錆がコンクリート表
面に現れる。
(1) In the case of metal lath The rust of the metal lath used for the splice part appears on the concrete surface.

【0006】 メタルラス表面から先行して打設され
るコンクリートののろが漏れ、レイタンスとなって弱層
を作る。
[0006] The molten clay of the concrete that is cast in advance leaks from the surface of the metal lath, and becomes a laitance to form a weak layer.

【0007】 強度上、メタルラスを2重かさねして
用いた場合、重ね部にコンクリートが充填されず空洞を
作ることがある。
In terms of strength, when the metal laths are used in a double-layered manner, the lap portion may not be filled with concrete to form a cavity.

【0008】(2) ベニヤ板の場合 鉄筋貫通部を型枠として十分塞ぐことができず、先行コ
ンクリートが漏れ出すことがある。
(2) In the case of a veneer plate The reinforcing steel penetrating part cannot be sufficiently closed as a form and the preceding concrete may leak out.

【0009】本発明は従来技術における上述のような問
題点の解決を図ったものである。
The present invention is intended to solve the above-mentioned problems in the prior art.

【0010】[0010]

【課題を解決するための手段】本発明は鉄筋コンクリー
ト構造物のコンクリート打継ぎ部に設置される打継ぎ用
型枠として、従来のメタルラスあるいはベニヤ板の型枠
に代えて、プレキャストコンクリート板からなる埋殺し
型枠を用いるものである。プレキャストコンクリート板
のコンクリート強度は、躯体のコンクリート強度と同等
以上の性能を有するものとする。
SUMMARY OF THE INVENTION The present invention is an embedding mold made of a precast concrete plate instead of a conventional metal lath or veneer plate form as a connecting form frame installed in a concrete joining part of a reinforced concrete structure. It uses a formwork. The concrete strength of the precast concrete board shall be equal to or higher than the concrete strength of the skeleton.

【0011】プレキャストコンクリート板の幅は打継ぎ
部における躯体断面、すなわち壁あるいは床等の躯体断
面厚さ等に応じた幅とする。プレキャストコンクリート
板の厚さは、必要とする強度や躯体の鉄筋間隔等を考慮
して、例えば10〜15cm程度となる。また、スチール
ファイバー等を混入した繊維補強コンクリートを用いる
ことで耐力の向上を図ることができ、比較的薄いプレキ
ャストコンクリート板で、型枠としての強度を確保する
ことができる。
The width of the precast concrete board is determined according to the cross-section of the skeleton at the joint, that is, the thickness of the skeleton cross-section of the wall or floor. The thickness of the precast concrete plate is, for example, about 10 to 15 cm in consideration of the required strength and the space between the reinforcing bars of the skeleton. Further, it is possible to improve the yield strength by using the fiber reinforced concrete mixed with steel fiber or the like, and it is possible to secure the strength as a formwork with a relatively thin precast concrete plate.

【0012】躯体断面において、打継ぎ用型枠を貫通す
る鉄筋の処理については、次の2通りの方法が考えられ
る。
The following two methods can be considered for the treatment of the reinforcing bar penetrating the forming joint frame in the frame cross section.

【0013】 打継ぎ用型枠の建込み後、躯体に配筋
される鉄筋を通すための鉄筋径より若干大きな貫通孔
を、鉄筋間隔に合わせて複数設けておく方法。
A method in which a plurality of through holes, which are slightly larger than the diameter of the reinforcing bars for passing the reinforcing bars to be reinforced in the body, are provided after the construction of the frame for splicing, in accordance with the intervals between the reinforcing bars.

【0014】 躯体に配筋される鉄筋間隔に応じて、
プレキャストコンクリート板に予め複数のジョイント用
鉄筋を貫通させておき、打継ぎ用型枠の建込み後、躯体
の鉄筋と接合する方法。
According to the distance between the reinforcing bars arranged in the skeleton,
A method in which a plurality of rebars for joints are preliminarily penetrated through a precast concrete plate, and after the formwork for splicing is built, it is joined to the rebars of the frame.

【0015】また、プレキャストコンクリート板の表
面、すなわち現場打ちのコンクリートと接する面には、
シヤーコッターとしての凹凸を形成しておくことによ
り、せん断力伝達の向上を図ることができる。
Further, on the surface of the precast concrete plate, that is, the surface in contact with the cast-in-place concrete,
By forming the unevenness as a shear cotter, it is possible to improve the transmission of shearing force.

【0016】[0016]

【実施例】次に、図示した実施例について説明する。EXAMPLES Next, the illustrated examples will be described.

【0017】図1は本発明の一実施例を示したもので、
打継ぎ用型枠1の本体をプレキャストコンクリート板2
としている。プレキャストコンクリート板2にはその厚
み方向に、躯体に配筋される鉄筋5(主筋)の間隔に合
わせて、複数の鉄筋貫通孔3が形成されている。
FIG. 1 shows an embodiment of the present invention.
Precast concrete board 2 for the main body of formwork 1
I am trying. In the precast concrete plate 2, a plurality of reinforcing bar through holes 3 are formed in the thickness direction of the precast concrete plate 2 at intervals of the reinforcing bars 5 (main bars) arranged in the body.

【0018】施工においては、打継ぎ部に設置した打継
ぎ用型枠1に鉄筋5を通して配筋を行い、打継ぎ用型枠
1の片側にコンクリートを打設する。本発明の打継ぎ用
型枠1は鉄筋コンクリート躯体中に埋殺しされるもので
あり、続いて打継ぎ用型枠1の反対側のコンクリート打
設を行うことができる。
In the construction, reinforcing bars 5 are arranged in the connecting form frame 1 installed in the connecting part, and concrete is placed on one side of the connecting form frame 1. The splicing form 1 of the present invention is buried in a reinforced concrete skeleton, and concrete can be subsequently placed on the opposite side of the splicing form 1.

【0019】図中、4はプレキャストコンクリート板2
の表面に形成したシヤーコッターとしての凹部であり、
現場打ちコンクリートとの一体性を高める目的で形成さ
れている。
In the figure, 4 is a precast concrete plate 2
It is a recess as a shear cotter formed on the surface of
It is formed for the purpose of increasing the unity with cast-in-place concrete.

【0020】図2の本発明の他の実施例を示したもの
で、打継ぎ用型枠11の本体を形成するプレキャストコ
ンクリート板12に、予め複数のジョイント鉄筋13を
埋め込んだものである。ジョイント鉄筋13は躯体に配
筋される鉄筋(図示せず)の間隔に合わせて設けられて
おり、現場打ちコンクリートの打設に先立ち、躯体の主
筋と接続される。図中、14はシヤコッターである。
FIG. 2 shows another embodiment of the present invention, in which a plurality of joint rebars 13 are embedded in advance in a precast concrete plate 12 forming the main body of the jointing form 11. The joint rebars 13 are provided in accordance with the intervals of the rebars (not shown) arranged in the skeleton, and are connected to the main rebars of the skeleton prior to the pouring of the cast-in-place concrete. In the figure, 14 is a shear cotter.

【0021】[0021]

【発明の効果】 埋殺し型枠として用いることで、現場打ちコンクリ
ートとほぼ同質の打継ぎ部が形成される。
[Effects of the Invention] By using it as a buried formwork, a splice portion having almost the same quality as that of cast-in-place concrete is formed.

【0022】 メタルラス製の打継ぎ用型枠のような
錆、レイタンスの問題や空洞を生じる問題がない。
There is no problem of rust, a problem of laitance and a problem of forming a cavity, which is caused by a metal lath splicing form.

【0023】 所定厚のプレキャストコンクリート板
を用いることで、現場打ちコンクリートの打設圧に対処
でき、また使用方法によってはある程度自立させること
ができる。また、メタルラスやベニヤの型枠に比べ、そ
れ自体剛性が大きいため、隣り合う箇所のコンクリート
打設を早期に行うことができる。
By using a precast concrete plate having a predetermined thickness, it is possible to cope with the pouring pressure of cast-in-place concrete, and to make it stand alone to some extent depending on the method of use. In addition, since the rigidity thereof is higher than that of a metal lath or a veneer formwork, concrete can be poured between adjacent parts at an early stage.

【0024】 プレキャストコンクリート板に予め鉄
筋貫通孔を設けたり、あるいはジョイント鉄筋を貫通さ
せておくことで、躯体の配筋の連続性が確保される。
[0024] By providing a reinforcing bar through hole in the precast concrete plate in advance or by allowing a joint reinforcing bar to penetrate therethrough, continuity of the reinforcement of the skeleton is secured.

【0025】 プレキャストコンクリート板の厚みを
利用して、鉄筋を安定的に保持させることができる。
By utilizing the thickness of the precast concrete plate, the reinforcing bar can be stably held.

【0026】 プレキャストコンクリート板とするこ
とで、表面にシヤーコッターとしての凹凸等を形成する
のも比較的容易であり、応力伝達の面でもコンクリート
としてほぼ均質な躯体が形成される。
By using a precast concrete plate, it is relatively easy to form irregularities as a shear cotter on the surface, and a substantially homogeneous frame is formed as concrete in terms of stress transmission.

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

【図1】本発明の一実施例を示す斜視図である。FIG. 1 is a perspective view showing an embodiment of the present invention.

【図2】本発明の他の実施例を示す斜視図である。FIG. 2 is a perspective view showing another embodiment of the present invention.

【符号の説明】[Explanation of symbols]

1…打継ぎ用型枠、2…プレキャストコンクリート板、
3…鉄筋貫通孔、4…シヤーコッター、5…鉄筋、11
…打継ぎ用型枠、12…プレキャストコンクリート板、
13…ジョイント鉄筋、14…シヤーコッター
1 ... Formwork for splicing, 2 ... Precast concrete board,
3 ... Rebar through hole, 4 ... Shear cotter, 5 ... Rebar, 11
… Formwork for splicing, 12… Precast concrete board,
13 ... Joint rebar, 14 ... Shear cotter

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 鉄筋コンクリート構造物のコンクリート
打継ぎ部に設置される埋殺し型枠であり、前記打継ぎ部
における躯体断面に応じた幅を有する所定厚のプレキャ
ストコンクリート板からなり、前記躯体の鉄筋間隔に応
じて複数の鉄筋貫通孔を設けたことを特徴とするコンク
リート打継ぎ用プレキャストコンクリート型枠。
1. A buried formwork installed at a concrete joint of a reinforced concrete structure, comprising a precast concrete plate having a predetermined thickness having a width corresponding to the cross section of the body at the joint, and the reinforcing bar of the body. A precast concrete formwork for concrete splicing, characterized in that a plurality of reinforcing bar through holes are provided according to the intervals.
【請求項2】 鉄筋コンクリート構造物のコンクリート
打継ぎ部に設置される埋殺し型枠であり、前記打継ぎ部
における躯体断面に応じた幅を有する所定厚のプレキャ
ストコンクリート板からなり、前記躯体の鉄筋間隔に応
じて複数のジョイント用鉄筋を貫通させてあることを特
徴とするコンクリート打継ぎ用プレキャストコンクリー
ト製型枠。
2. A buried formwork installed at a concrete joint of a reinforced concrete structure, comprising a precast concrete plate having a predetermined thickness having a width corresponding to a cross-section of the body at the joint, and the reinforcing bar of the body. A precast concrete formwork for concrete splicing, characterized in that a plurality of joint reinforcing bars are penetrated according to the intervals.
【請求項3】 プレキャストコンクリート板の表面には
凹凸が形成されている請求項1または2記載のコンクリ
ート打継ぎ用プレキャストコンクリート型枠。
3. The precast concrete formwork for concrete splicing according to claim 1 or 2, wherein irregularities are formed on the surface of the precast concrete plate.
【請求項4】 プレキャストコンクリート板は繊維補強
コンクリートからなる請求項1、2または3記載のコン
クリート打継ぎ用プレキャストコンクリート型枠。
4. The precast concrete formwork for concrete splicing according to claim 1, 2 or 3, wherein the precast concrete plate is made of fiber reinforced concrete.
JP26613991A 1991-10-15 1991-10-15 Precast concrete mold for jointing concrete Pending JPH05106339A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26613991A JPH05106339A (en) 1991-10-15 1991-10-15 Precast concrete mold for jointing concrete

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26613991A JPH05106339A (en) 1991-10-15 1991-10-15 Precast concrete mold for jointing concrete

Publications (1)

Publication Number Publication Date
JPH05106339A true JPH05106339A (en) 1993-04-27

Family

ID=17426859

Family Applications (1)

Application Number Title Priority Date Filing Date
JP26613991A Pending JPH05106339A (en) 1991-10-15 1991-10-15 Precast concrete mold for jointing concrete

Country Status (1)

Country Link
JP (1) JPH05106339A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008138424A (en) * 2006-11-30 2008-06-19 Ps Mitsubishi Construction Co Ltd Reinforcement fixing structure of web member, and construction method for web member
JP2009114625A (en) * 2007-11-01 2009-05-28 Nihon Samicon Co Ltd Embedded board for placing joint
KR101453360B1 (en) * 2012-07-12 2014-10-23 이익선 A mold finish of Concrete
JP2017128980A (en) * 2016-01-22 2017-07-27 三井住友建設株式会社 PCa partial wall, PCa partial beam, RC building and construction method of RC building
CN107675812A (en) * 2017-09-23 2018-02-09 福州大学 Ultra-high performance concrete plate seam attachment structure and its construction method
JP2018178497A (en) * 2017-04-11 2018-11-15 鹿島建設株式会社 Method of placing fiber reinforced concrete, and boundary member
CN110307010A (en) * 2019-07-31 2019-10-08 中国电建集团成都勘测设计研究院有限公司 Hydraulic tunnel abutment wall and bottom plate lining construction template system
JP2023031960A (en) * 2021-08-26 2023-03-09 飛島建設株式会社 Construction device of concrete structure

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS574205U (en) * 1980-06-10 1982-01-09
JPS574200U (en) * 1980-06-06 1982-01-09
JPS59102059A (en) * 1982-12-02 1984-06-12 戸田建設株式会社 Joint construction of reinforced concrete structure
JPH0223028B2 (en) * 1981-08-21 1990-05-22 Tokyo Shibaura Electric Co

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS574200U (en) * 1980-06-06 1982-01-09
JPS574205U (en) * 1980-06-10 1982-01-09
JPH0223028B2 (en) * 1981-08-21 1990-05-22 Tokyo Shibaura Electric Co
JPS59102059A (en) * 1982-12-02 1984-06-12 戸田建設株式会社 Joint construction of reinforced concrete structure

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008138424A (en) * 2006-11-30 2008-06-19 Ps Mitsubishi Construction Co Ltd Reinforcement fixing structure of web member, and construction method for web member
JP2009114625A (en) * 2007-11-01 2009-05-28 Nihon Samicon Co Ltd Embedded board for placing joint
KR101453360B1 (en) * 2012-07-12 2014-10-23 이익선 A mold finish of Concrete
JP2017128980A (en) * 2016-01-22 2017-07-27 三井住友建設株式会社 PCa partial wall, PCa partial beam, RC building and construction method of RC building
JP2018178497A (en) * 2017-04-11 2018-11-15 鹿島建設株式会社 Method of placing fiber reinforced concrete, and boundary member
CN107675812A (en) * 2017-09-23 2018-02-09 福州大学 Ultra-high performance concrete plate seam attachment structure and its construction method
CN107675812B (en) * 2017-09-23 2019-02-22 福州大学 Ultra-high performance concrete plate seam connection structure and its construction method
CN110307010A (en) * 2019-07-31 2019-10-08 中国电建集团成都勘测设计研究院有限公司 Hydraulic tunnel abutment wall and bottom plate lining construction template system
JP2023031960A (en) * 2021-08-26 2023-03-09 飛島建設株式会社 Construction device of concrete structure

Similar Documents

Publication Publication Date Title
JP2781155B2 (en) Precast concrete board
JPH05106339A (en) Precast concrete mold for jointing concrete
JPH05340031A (en) Prestressed concrete girder and its manufacture
JPH09242022A (en) Joint structure
JP3239151B2 (en) Concrete wall construction method
JPH0480444A (en) Connection unit of reinforced concrete pole and steel framed beam
JPH0610420A (en) Method for connecting precast concrete member
JP2864906B2 (en) Precast wall joining method
KR200434622Y1 (en) Precast concrete panel
JP2697532B2 (en) How to build an architectural frame
JPH0426483Y2 (en)
JP2959325B2 (en) Construction method of steel frame reinforced concrete structure
JP7455931B1 (en) Precast board manufacturing method and precast board
JPH07292857A (en) Pc member with irregular-shaped steel pipe for joint, and connecting method thereof
JPH02311639A (en) Construction of composite floor
JP3643809B2 (en) Connection structure of precast concrete foundation blocks
JPH0777596A (en) Large scale slab in atomic energy facility and construction thereof
JPH10317564A (en) Stepped pc plate, stepped composite floor using stepped pc plate, and building method
GB2161512A (en) Wall panel of concrete blocks
JP3026058B2 (en) PC composite floor slab
JPH07139054A (en) Joining method for precast concrete wall plate
JPH05340015A (en) Concrete floor structure
JPH02236325A (en) Construction method for super-highrise building
JPH0266246A (en) Insulating concrete with space truss and construction thereof
JP3119117B2 (en) PC version driving formwork and formwork method

Legal Events

Date Code Title Description
A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 19960521