JPH05179700A - Jointing method of precast girder to precast beam - Google Patents

Jointing method of precast girder to precast beam

Info

Publication number
JPH05179700A
JPH05179700A JP35760091A JP35760091A JPH05179700A JP H05179700 A JPH05179700 A JP H05179700A JP 35760091 A JP35760091 A JP 35760091A JP 35760091 A JP35760091 A JP 35760091A JP H05179700 A JPH05179700 A JP H05179700A
Authority
JP
Japan
Prior art keywords
precast
girder
cut groove
precast girder
gap
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
JP35760091A
Other languages
Japanese (ja)
Inventor
Takeo Ikeda
武穂 池田
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.)
Maeda Corp
Original Assignee
Maeda 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 Maeda Corp filed Critical Maeda Corp
Priority to JP35760091A priority Critical patent/JPH05179700A/en
Publication of JPH05179700A publication Critical patent/JPH05179700A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To join a precast girder with a precast beam to transmit a load securely without using concrete placed at site even in case there is no difference between the heights of both. CONSTITUTION:A cut groove part 3 having a recessed part in an inner wall surface is provided at a joint part with a precast beam 2 in a side surface of a precast girder 1. After dropping an end part of the precast beam 2 having a recessed part 5 in an end surface at a corresponding position to the recessed part 4, high-strength grout material 6 is injected to a gap between the precast girder 1 and the beam 2 and the recessed parts 4, 5 facing each other to solidify and integrate them.

Description

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

【0001】[0001]

【産業上の利用分野】プレキャストコンクリート構造建
物におけるRCプレキャスト大梁とプレキャスト小梁の
接合方法に関するものである。
TECHNICAL FIELD The present invention relates to a method of joining RC precast girders and precast girders in a precast concrete structure building.

【0002】[0002]

【従来の技術】従来のRCプレキャスト大梁とプレキャ
スト小梁の接合は、図3に示すように大梁Aの側面に小
梁支持用の支持突部Bを設けて小梁Cを受けるか、ある
いは図4に示すように大梁Aの側面の小梁接合位置に小
梁Cの断面形より少し大きな切込溝部Dを設け、その中
に小梁Cの端部をはめ込み、隙間にグラウト材Gを注入
して小梁Cを固定する方法を採っていた。
2. Description of the Related Art Conventional RC precast girders and precast girders are joined to each other by providing a supporting projection B for supporting a girder on a side surface of the girder A as shown in FIG. As shown in FIG. 4, a notch groove D slightly larger than the cross-sectional shape of the beam C is provided at the beam connecting position on the side of the beam A, the end of the beam C is fitted therein, and the grout material G is injected into the gap. Then, the method of fixing the beam C was adopted.

【0003】そしていずれの方法においても、構造的に
は小梁Cの支持力としてグラウト材Gは期待せず、上部
床の後打ちコンクリートEと、大梁Aからの支持突部B
あるいは切込溝部Dの下端面下方のコンクリート部で小
梁Cを支持している。
In either method, structurally, the grout material G is not expected as the supporting force for the beam C, and the post-cast concrete E on the upper floor and the supporting projection B from the beam A are used.
Alternatively, the beam C is supported by the concrete portion below the lower end surface of the cut groove portion D.

【0004】[0004]

【発明が解決しようとする課題】従来の方法では、大梁
と小梁の高さに充分な差がある場合はよいが、差がない
場合は小梁を支える支持突部や切込溝部の下端面下方の
コンクリート部の厚さが小さく強度不足となるため、小
梁を支持することができず、そのため大梁と小梁のどち
らか、あるいは一部を現場打ちとしなければならなかっ
た。
According to the conventional method, it is preferable that there is a sufficient height difference between the large beam and the small beam, but if there is no difference, it is necessary to support the beam under the supporting projection or the cut groove. Since the thickness of the concrete part under the end face was small and the strength was insufficient, it was not possible to support the small beam. Therefore, either the large beam or the small beam, or part of it had to be cast in situ.

【0005】また、従来の支持方法では、小梁を支持す
る支持突部あるいは切込溝部の下端面下方のコンクリー
ト部に鉄筋による補強が必要であり、特に大梁から突設
した支持突部においてはプレキャスト部材の製作上非常
に手間がかかるとともに、型枠が複雑になり、コスト高
を免れなかった。
Further, in the conventional supporting method, it is necessary to reinforce the supporting projections for supporting the beam or the concrete portion below the lower end surface of the cut groove with reinforcing bars. Particularly, in the supporting projection protruding from the girder. It takes a lot of time and labor to manufacture the precast member, and the formwork becomes complicated, which inevitably results in a high cost.

【0006】[0006]

【課題を解決するための手段】この発明は、プレキャス
ト大梁1の側面におけるプレキャスト小梁2との接合部
に、内壁面に凹部4を設けた切込溝部3を設け、この切
込溝部3に、前記凹部4と対応する位置における端面に
凹部5を設けたプレキャスト小梁2の端部を落とし込ん
だ後、プレキャスト大梁1と小梁2との隙間及び相対応
する凹部4,5に高強度グラウト材6を注入して固結一
体化するようにしたプレキャスト大梁とプレキャスト小
梁の接合方法を提案するものである。
According to the present invention, a cut groove portion 3 having a recess 4 on an inner wall surface is provided at a joint portion of a side surface of a precast girder 1 with a precast beam 2 and the cut groove portion 3 is provided. After dropping the end of the precast girder 2 having a recess 5 on the end face at a position corresponding to the recess 4, a high-strength grout is formed in the gap between the precast girder 1 and the girder 2 and the corresponding recesses 4 and 5. It proposes a method for joining a precast girder and a precast girder in which the material 6 is injected to be solidified and integrated.

【0007】[0007]

【作用】プレキャスト大梁1の切込溝部3とプレキャス
ト小梁2の端部との隙間及び相対する凹部4,5間に充
填して固結した高強度グラウト材6が、あたかも大梁1
と小梁2間に打ち込んだコッターのように両者を錠着し
て強固に結合することになり、従って大梁1と小梁2の
高さに差がない場合でも現場打ちコンクリートによるこ
となく確実に荷重を伝達し得るように両者を接合するこ
とが可能となる。
The high-strength grout material 6 filled and solidified in the gap between the notch 3 of the precast girder 1 and the end of the precast girder 2 and between the opposing recesses 4 and 5 is as if the girder 1
Like a cotter driven between the girder and the girder 2, they will be locked and firmly joined together. Therefore, even if there is no difference in height between the girder 1 and the girder 2, surely without using cast-in-place concrete. It is possible to join the two so that the load can be transmitted.

【0008】[0008]

【実施例】プレキャスト大梁1の側面におけるプレキャ
スト小梁2の接合部分に、上端から下部にかけて小梁2
の断面形より若干大きい切込溝部3が設けられ、この切
込溝部3の内壁面に凹部4が1又は複数個設けられてい
る。
[Example] The beam 2 from the upper end to the lower portion of the joint portion of the precast girder 2 on the side surface of the precast girder 1
A cut groove portion 3 slightly larger than the cross-sectional shape is provided, and one or a plurality of recesses 4 are provided on the inner wall surface of the cut groove portion 3.

【0009】プレキャスト小梁2の端面には、上記切込
溝部3の内壁面の凹部4に対応する位置に凹部5が設け
られている。
The end face of the precast beam 2 is provided with a recess 5 at a position corresponding to the recess 4 on the inner wall surface of the cut groove 3.

【0010】プレキャスト小梁2の接合に際しては、プ
レキャスト大梁1の切込溝部3に小梁2の端部を若干の
間隙を保持して落とし込んで切込溝部3の下端面に載
せ、この状態で大梁1の切込溝部3と小梁2の端部との
隙間及び相対する凹部4,5間に高強度モルタル等の高
強度グラウト材6を注入して、小梁2を大梁1に固結一
体化する。
When the precast beam 2 is joined, the end of the beam 2 is dropped into the cut groove 3 of the precast girder 1 with a slight gap and placed on the lower end surface of the cut groove 3. A high-strength grout material 6 such as high-strength mortar is injected into the gap between the cut groove 3 of the girder 1 and the end of the girder 2 and the recesses 4 and 5 facing each other, and the girder 2 is fixed to the girder 1. Unify.

【0011】このように大梁1と小梁2との隙間及び相
対する凹部4,5間に充填して固結した高強度グラウト
材6は、あたかも大梁1と小梁2間に打ち込んだコッタ
ーのように両者を強固に結合することになる。
The high-strength grout material 6 thus filled and solidified in the gap between the girder 1 and the girder 2 and between the opposing recesses 4 and 5 is as if it were a cotter driven between the girder 1 and the girder 2. As a result, they will be firmly connected.

【0012】その後は、大梁1と小梁2の上端に梁筋
7,8を配筋した上で、床版部と一体の後打ちコンクリ
ート9を打設する。
After that, beam reinforcements 7 and 8 are arranged on the upper ends of the large beam 1 and the small beam 2, and a post-cast concrete 9 integral with the floor slab is placed.

【0013】[0013]

【発明の効果】以上の通りこの発明によれば、プレキャ
スト大梁の切込溝部とプレキャスト小梁との隙間及び相
対する凹部間に充填して固結した高強度グラウト材が、
あたかも大梁と小梁間に打ち込んだコッターのように両
者を強固に結合するので、大梁と小梁の高さに差がない
場合でも、現場打ちコンクリートによることなくプレキ
ャスト部材のまま両者を強固に接合することが可能とな
る。
As described above, according to the present invention, the high-strength grout material filled and solidified in the gap between the cut groove portion of the precast girder and the precast girder and in the opposing recesses,
Since they are firmly connected like a cotter driven between a large beam and a small beam, even if there is no difference in height between the large beam and the small beam, they are firmly joined together as a precast member without using cast-in-place concrete. It becomes possible.

【0014】また、従来のように小梁を支持する支持突
部を設けたり、この支持突部あるいは切込溝部の下端面
下方のコンクリート部に鉄筋による補強をする必要もな
いので、プレキャスト大梁の製作も容易で、コストを低
減することができる。
Moreover, since it is not necessary to provide a supporting projection for supporting the beam, or to reinforce the supporting projection or the concrete portion below the lower end surface of the cut groove portion with a reinforcing bar as in the conventional case, the precast girder is not required to be reinforced. It is easy to manufacture, and the cost can be reduced.

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

【図1】この発明による大梁と小梁の接合方法を示す縦
断側面図。
FIG. 1 is a vertical sectional side view showing a method for joining a large beam and a small beam according to the present invention.

【図2】この発明による大梁と小梁の接合方法を示す横
断平面図。
FIG. 2 is a cross-sectional plan view showing a method for joining a girder and a girder according to the present invention.

【図3】従来のプレキャスト大梁とプレキャスト小梁の
接続方法を示す縦断側面図。
FIG. 3 is a vertical cross-sectional side view showing a conventional method for connecting a precast girder and a precast girder.

【図4】従来のプレキャスト大梁とプレキャスト小梁の
接続方法を示す縦断側面図。
FIG. 4 is a vertical cross-sectional side view showing a method for connecting a conventional precast girder and a precast girder.

【符号の説明】[Explanation of symbols]

1 プレキャスト大梁 2 プレキャスト小梁 3 切込溝部 4 凹部 5 凹部 6 高強度グラウト材 7 梁筋 8 梁筋 9 後打ちコンクリート 1 Precast girder 2 Precast girder 3 Notch groove 4 Recess 5 Recess 6 High-strength grout material 7 Beam reinforcement 8 Beam reinforcement 9 Post-cast concrete

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】プレキャスト大梁の側面におけるプレキャ
スト小梁との接合部に、内壁面に凹部を設けた切込溝部
を設け、この切込溝部に、前記凹部と対応する位置にお
ける端面に凹部を設けたプレキャスト小梁を落とし込ん
だ後、前記プレキャスト大梁と小梁との隙間及び前記相
対応する凹部に高強度グラウト材を注入して固結一体化
することを特徴とするプレキャスト大梁とプレキャスト
小梁の接合方法。
1. A cut groove portion having a concave portion provided on an inner wall surface thereof is provided at a joint portion of a side surface of a precast girder with a precast beam portion, and the cut groove portion is provided with a concave portion at an end surface at a position corresponding to the concave portion. After dropping the precast girder, a high-strength grout material is injected into the gap between the precast girder and the girder and the corresponding recesses to solidify and integrate the precast girder and the precast girder. Joining method.
JP35760091A 1991-12-26 1991-12-26 Jointing method of precast girder to precast beam Pending JPH05179700A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP35760091A JPH05179700A (en) 1991-12-26 1991-12-26 Jointing method of precast girder to precast beam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP35760091A JPH05179700A (en) 1991-12-26 1991-12-26 Jointing method of precast girder to precast beam

Publications (1)

Publication Number Publication Date
JPH05179700A true JPH05179700A (en) 1993-07-20

Family

ID=18454954

Family Applications (1)

Application Number Title Priority Date Filing Date
JP35760091A Pending JPH05179700A (en) 1991-12-26 1991-12-26 Jointing method of precast girder to precast beam

Country Status (1)

Country Link
JP (1) JPH05179700A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008144431A (en) * 2006-12-08 2008-06-26 Takenaka Komuten Co Ltd Method and structure for joining precast reinforced concrete beam members
JP2014109152A (en) * 2012-12-03 2014-06-12 Taisei Corp Beam member and floor structure
KR20180024243A (en) * 2016-08-29 2018-03-08 (주)수하담 Equipped with a shear key precast concrete members connection method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008144431A (en) * 2006-12-08 2008-06-26 Takenaka Komuten Co Ltd Method and structure for joining precast reinforced concrete beam members
JP2014109152A (en) * 2012-12-03 2014-06-12 Taisei Corp Beam member and floor structure
KR20180024243A (en) * 2016-08-29 2018-03-08 (주)수하담 Equipped with a shear key precast concrete members connection method

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