JPH06146437A - Precast concrete member and connecting method thereof - Google Patents
Precast concrete member and connecting method thereofInfo
- Publication number
- JPH06146437A JPH06146437A JP30567292A JP30567292A JPH06146437A JP H06146437 A JPH06146437 A JP H06146437A JP 30567292 A JP30567292 A JP 30567292A JP 30567292 A JP30567292 A JP 30567292A JP H06146437 A JPH06146437 A JP H06146437A
- Authority
- JP
- Japan
- Prior art keywords
- groove
- concrete
- panel
- shaped recess
- concrete member
- 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.)
- Granted
Links
Landscapes
- Load-Bearing And Curtain Walls (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、壁や柱などの構造体
となるプレキャストコンクリート部材（以下ＰＣ部材と
する）に関し、特に、建設現場で他のコンクリート部材
と接続するための構造と接続方法の改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a precast concrete member (hereinafter referred to as a PC member) which becomes a structure such as a wall or a pillar, and particularly to a structure and a connecting method for connecting to another concrete member at a construction site. Regarding the improvement of.
【０００２】[0002]
【従来の技術】よく知られているように、ＰＣ部材を用
いて建物を構築する場合、ＰＣ部材を現場に建て付けて
他のコンクリート部材と一体的に接続する。そのための
接続構造として、ＰＣ部材の接続端面には一般の差筋に
相当する鉄筋が予め突設されている。また、ＰＣ部材よ
り先に現場に設置されている他のコンクリート部材（場
所打ちコンクリート部材あるいは別のＰＣ部材）の接続
部位にも差筋に相当する鉄筋が突設されている。2. Description of the Related Art As is well known, when a building is constructed using PC members, the PC members are built on site and integrally connected to other concrete members. As a connection structure for that purpose, a reinforcing bar corresponding to a general difference bar is preliminarily provided on the connecting end surface of the PC member. Further, a reinforcing bar corresponding to a differential bar is also projected at a connection portion of another concrete member (a cast-in-place concrete member or another PC member) installed on site before the PC member.
【０００３】そして、ＰＣ部材を所定位置に建て付け
て、その接続端面と他のコンクリート部材の接続部位と
を所定間隔をおいて対向させ、両者から突出している前
記鉄筋を互いに重ね合わせ、その重ね継手部分を囲うよ
うに型枠を設置し、その型枠内にコンクリートを打設し
て重ね継手部分を埋設する。以上が重ね継手により従来
の代表的なＰＣ部材の接続構造および工法である。Then, the PC member is installed at a predetermined position, its connecting end face and a connecting portion of another concrete member are opposed to each other with a predetermined gap, and the reinforcing bars projecting from both are superposed on each other, and the superposed ones are superposed on each other. A formwork is installed so as to surround the joint part, and concrete is placed in the formwork to bury the lap joint part. The above is the conventional connection structure and construction method for a typical PC member using a lap joint.
【０００４】[0004]
【発明が解決しようとする課題】前記のような接続構造
のＰＣ部材では、その接続端面から多数の鉄筋が突出し
ているので、工場から現場までの運搬作業や現場での建
て付け作業に際して突出鉄筋が非常に邪魔になり、作業
能率を低下させているだけでなく、怪我をしやすいなど
安全面でも問題があった。In the PC member having the above-mentioned connection structure, a large number of reinforcing bars are projected from the connecting end surface thereof, and therefore, when projecting from the factory to the construction site or on-site construction work, the projecting reinforcing bars are used. Not only hinders work efficiency, but also causes safety problems such as easy injury.
【０００５】またＰＣ部材を用いる建築工法は、現場で
の鉄筋工事や型枠工事の削減を意図しているが、前記の
ようにＰＣ部材と他のコンクリート部材との間に型枠を
設置してコンクリートを打設するという接続方法では、
接続工事に伴って型枠の設置と撤去の作業が依然として
必要であり、現場作業をさらに向上させるためにＰＣ部
材の接続構造および接続方法の改良が望まれている。The construction method using PC members is intended to reduce the work of reinforcing bars and formwork at the site, but as described above, a formwork is installed between the PC member and other concrete members. With the connection method of pouring concrete,
The work of installing and removing the formwork is still necessary in connection with the connection work, and improvement of the connection structure and connection method of the PC member is desired in order to further improve the site work.
【０００６】この発明は前述した従来の問題点に鑑みな
されたもので、その目的は、接続手段としての鉄筋が外
部に突出していない運搬性および安全性の良好なＰＣ部
材を提供するとともに、簡単な作業でＰＣ部材と他のコ
ンクリート部材を接続することができるようにすること
にある。The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is to provide a PC member having good transportability and safety in which a reinforcing bar as a connecting means does not project to the outside and is simple. The purpose is to be able to connect the PC member and other concrete members by simple work.
【０００７】[0007]
【課題を解決するための手段】この発明のＰＣ部材は、
他のコンクリート部材と接続する端面に交わっている表
面部分に前記端面にまで達する細長い溝状凹部が形成さ
れていて、内部に埋め込まれている鉄筋の一部が前記溝
状凹部内に露出しているとともに前記溝状凹部の長手方
向に沿うように配設されていることを特徴とするもので
ある。The PC member of the present invention comprises:
An elongated groove-shaped recess reaching the end surface is formed on the surface portion intersecting with the end surface connected to another concrete member, and a part of the reinforcing bar embedded inside is exposed in the groove-shaped recess. It is characterized in that it is arranged along the longitudinal direction of the groove-shaped recess.
【０００８】また、この発明による前記のＰＣ部材を現
場に建て付けて他の場所打ちコンクリートと接続するに
際し、ＰＣ部材の接続端面を他のコンクリート部材の接
続部位に接合し、他のコンクリート部材から突出してい
る鉄筋を前記溝状凹部内に配設して前記ＰＣ部材側の前
記鉄筋と重ね合わせ、その状態で前記溝状凹部内にコン
クリートあるいはモルタルを充填するようにした。When the PC member according to the present invention is built on site and connected to another cast-in-place concrete, the connection end face of the PC member is joined to the connection site of the other concrete member, The projecting rebar was disposed in the groove-shaped recess and was overlapped with the rebar on the PC member side, and in that state, the groove-shaped recess was filled with concrete or mortar.
【０００９】また、この発明によるＰＣ部材同士を接合
するに際し、現場に建て付けた２つのＰＣ部材の前記端
面同士を接合し、両者の前記溝状凹部内に掛け渡すよう
に別の鉄筋を配設して当該ＰＣ部材側の前記鉄筋と重ね
合わせ、その状態で前記溝状凹部内にコンクリートある
いはモルタルを充填するようにした。When joining the PC members according to the present invention, the end faces of the two PC members built on site are joined together, and another reinforcing bar is arranged so as to be bridged in the groove-shaped recesses of both. The rebar on the side of the PC member was superposed, and the groove-shaped recess was filled with concrete or mortar in this state.
【００１０】[0010]
【作用】前記の構成のＰＣ部材では、接続用の鉄筋はコ
ンクリート中から露出しているが、前記端面から突出し
ているのではなくて、前記表面部分に形成させている前
記溝状凹部内の溝長手方向に沿って配設され、溝内に収
納された状態になっている。したがってＰＣ部材本体の
包絡的な外形に前記鉄筋が収まる。In the PC member of the above construction, the connecting rebar is exposed from inside the concrete, but it is not projected from the end face but inside the groove-shaped recess formed in the surface portion. It is arranged along the longitudinal direction of the groove and is accommodated in the groove. Therefore, the reinforcing bars fit in the envelope of the PC member body.
【００１１】接続工事に際しては、前記ＰＣ部材の前記
溝状凹部内に収まっている前記鉄筋と他の鉄筋とが重ね
合わされるので、その重ね継手部分も溝状凹部内に収ま
り、そこにコンクリートあるいはモルタルを充填するの
に型枠は必要なく、吹き付け工法あるいは塗り付け工法
で簡単に行うことができる。During the connection work, since the reinforcing bars accommodated in the groove-shaped recesses of the PC member and other reinforcing bars are overlapped with each other, the lap joint part is also accommodated in the groove-shaped recesses, and concrete or A mold is not required to fill the mortar, and it can be easily performed by a spraying method or a painting method.
【００１２】[0012]
【実施例】図１はこの発明の一実施例による壁用のＰＣ
パネル１の要部構成を示している。このＰＣパネル１は
全体として長方形のパネルを構成しており、その下端面
１ａが後述の梁部材との接続面となり、両側端面１ｂが
同一構成の別のＰＣパネルとの接続面となる。下端面１
ａおよび側端面１ｂに直交している前面および背面（以
下パネル面という）１ｃには前述した溝状凹部２と３が
多数形成されている。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a wall PC according to an embodiment of the present invention.
The principal part structure of the panel 1 is shown. The PC panel 1 constitutes a rectangular panel as a whole, and its lower end surface 1a serves as a connection surface with a beam member described later, and both end surfaces 1b serve as a connection surface with another PC panel having the same configuration. Bottom surface 1
A large number of the groove-shaped concave portions 2 and 3 described above are formed on the front surface and the back surface (hereinafter referred to as the panel surface) 1c which are orthogonal to the a and the side end surface 1b.
【００１３】溝状凹部２は梁部材との接続用のもので、
パネル面１ｃの下部に垂直方向に形成され、下端面１ａ
にまで達している。この垂直方向の溝状凹部２内には、
ＰＣパネル１に埋め込まれている鉄筋の一部が露出して
いて垂直方向に配置されている。この実施例では、１つ
の溝状凹部２に２本の露出鉄筋４が平行に配置されてお
り、両鉄筋４とも溝状凹部２の空間内に収納されてい
る。The groove-shaped recess 2 is for connection with a beam member,
The lower end surface 1a is formed vertically below the panel surface 1c.
Has reached. In this vertical grooved recess 2,
A part of the reinforcing bars embedded in the PC panel 1 is exposed and arranged vertically. In this embodiment, two exposed reinforcing bars 4 are arranged in parallel in one groove-shaped recess 2 and both reinforcing bars 4 are housed in the space of the groove-shaped recess 2.
【００１４】溝状凹部３は他のパネルとの接続用のもの
で、パネル面１ｃの側端近くに水平方向に形成され、側
端面１ｂにまで達している。この水平方向の溝状凹部３
内には、ＰＣパネル１に埋め込まれている鉄筋の一部が
露出していて水平方向に配置されている。溝状凹部３は
前記溝状凹部２より幅が狭く、１つの溝状凹部３に１本
の露出鉄筋５が凹部内に完全に収納された状態になって
いる。The groove-shaped recess 3 is for connecting to another panel, is formed horizontally near the side end of the panel surface 1c, and reaches the side end surface 1b. This horizontal groove-shaped recess 3
A part of the reinforcing bars embedded in the PC panel 1 is exposed inside and arranged horizontally. The groove-shaped recess 3 has a width smaller than that of the groove-shaped recess 2, and one exposed rebar 5 is completely accommodated in each groove-shaped recess 3.
【００１５】前記のＰＣパネル１を建設現場に建て付け
た状態を図２および図３（ａ），（ｂ），（ｃ）に示し
ている。同図において、６は場所打ちコンクリートで先
に構築されている梁部材であり、この梁部材６の上に前
記のＰＣパネル１を垂直に立てて連設する。梁部材６を
打設する際に、ＰＣパネル１と接続するための差筋７を
予め突設している。この実施例では、差筋７は２本１組
で、前記溝状凹部２のスパンに合せた間隔をおいて所定
位置に設けられている。2 and 3 (a), (b) and (c) show a state in which the PC panel 1 is built on a construction site. In the figure, reference numeral 6 denotes a beam member previously constructed by cast-in-place concrete, and the PC panel 1 is vertically erected on the beam member 6 and continuously arranged. At the time of driving the beam member 6, a streak 7 for connecting to the PC panel 1 is preliminarily provided in a protruding manner. In this embodiment, two sets of the differential lines 7 are provided in a predetermined position at intervals corresponding to the span of the groove-shaped recess 2.
【００１６】梁部材６の所定位置にＰＣパネル１を建て
付けると、梁部材６側の差筋７がＰＣパネル１の溝状凹
部２内に入り込む。そこで、溝状凹部２内において差筋
７とＰＣパネル１がわの露出鉄筋４とを針金などで結束
する。このように差筋７と露出鉄筋４とが重ね合わされ
ている溝状凹部２内にコンクリートあるいはモルタルを
充填し、重ね継手部分を埋設する。なお、コンクリート
あるいはモルタルの充填は吹き付け工法や塗り付け工法
で行うので、もちろん型枠は必要ない。When the PC panel 1 is installed at a predetermined position of the beam member 6, the streaks 7 on the beam member 6 side enter into the groove-shaped recess 2 of the PC panel 1. Therefore, in the groove-shaped recess 2, the differential bar 7 and the exposed rebar 4 of the PC panel 1 are bound together by a wire or the like. In this way, concrete or mortar is filled in the groove-shaped concave portion 2 in which the differential bar 7 and the exposed reinforcing bar 4 are superposed, and the lap joint part is buried. Since concrete or mortar is filled by a spraying method or a painting method, of course no formwork is required.
【００１７】また図２において、右側のＰＣパネル１は
前記の方法で梁部材６に既に接続されているものとす
る。そして左側のＰＣパネル１を前記のように梁部材６
上に建て付けると、既設のＰＣパネル１と新設のＰＣＰ
Ｃパネル１の側端面１ｂ同士が接合する配置関係とな
る。そのとき、２つのＰＣパネル１に形成されている前
記溝状凹部３の高さが一致して相互に連続した状態にな
る。In FIG. 2, it is assumed that the PC panel 1 on the right side is already connected to the beam member 6 by the above method. Then, the beam member 6 is attached to the left PC panel 1 as described above.
Installed on top of existing PC panel 1 and new PCP
There is an arrangement relationship in which the side end surfaces 1b of the C panel 1 are joined to each other. At that time, the heights of the groove-shaped recesses 3 formed on the two PC panels 1 are the same and are continuous with each other.
【００１８】そこで、つながった２つの溝状凹部３の全
長より少し短い継手鉄筋８を用意し、その鉄筋８を２つ
の溝状凹部３に掛け渡すように配設し、両凹部３内の露
出鉄筋５と重ね合せて針金などで結束する。その状態
で、吹き付け工法あるいは塗り付け工法によりコンクリ
ートあるいはモルタルを溝状凹部３内に充填し、重ね合
わせ継手部分を埋設する。Therefore, a joint reinforcing bar 8 which is slightly shorter than the entire length of the two groove-shaped recesses 3 connected to each other is prepared, and the reinforcing bar 8 is arranged so as to be bridged over the two groove-shaped recesses 3 and exposed in both recesses 3. Overlap with the reinforcing bar 5 and bind with wire or the like. In that state, concrete or mortar is filled in the groove-shaped recess 3 by a spraying method or a painting method, and the lap joint portion is buried.
【００１９】[0019]
【発明の効果】以上詳細に説明したように、この発明に
よるＰＣ部材では、他のコンクリート部材との接続用の
露出鉄筋は前記溝状凹部内に収納されていて、ＰＣ部材
本体の包絡形状から大きく外側に突出する鉄筋はなくな
るので、運搬作業や現場での組立作業の邪魔ものがな
く、作業能率が向上するとともに作業の安全性も増す。As described in detail above, in the PC member according to the present invention, the exposed rebar for connection with another concrete member is housed in the groove-shaped recess, and the PC member main body has an envelope shape. Since there is no reinforcing bar that protrudes to the outside, there is no hindrance to transportation work or assembly work at the site, improving work efficiency and work safety.
【００２０】また、この発明によるＰＣ部材の接続方法
によれば、ＰＣ部材と他のコンクリート部材とを接合し
て前記溝状凹部内の鉄筋の重ね合せ継手部分にコンクリ
ートあるいはモルタルを充填することで、両部材を接続
することができ、従来のように接続部のコンクリート型
枠を設置して再び撤去するという面倒な型枠工事がなく
なり、ＰＣ部材の接続工事が従来よりはるかに簡単にな
る。Further, according to the method for connecting a PC member according to the present invention, the PC member and another concrete member are joined and the lap joint portion of the reinforcing bars in the groove-shaped recess is filled with concrete or mortar. Since both members can be connected, the troublesome formwork work of installing a concrete formwork of the connection part and removing it again as in the past is eliminated, and the connection work of the PC member becomes much easier than before.
【図１】この発明の一実施例によりＰＣパネルの要部構
成を示す斜視図である。FIG. 1 is a perspective view showing a main configuration of a PC panel according to an embodiment of the present invention.
【図２】同上実施例のＰＣパネルを現場に建て付けた状
態の概略を示す斜視図である。FIG. 2 is a perspective view showing an outline of a state in which the PC panel of the above-mentioned embodiment is built on site.
【図３】（ａ）は図２の平面図である。（ｂ）は図３
（ａ）のＢ−Ｂ´断面図である。（ｃ）は図３（ａ）の
Ｃ−Ｃ´断面図である。3 (a) is a plan view of FIG. 2. FIG. (B) is FIG.
It is a BB 'sectional view of (a). 3C is a cross-sectional view taken along the line CC ′ of FIG.
１ ＰＣパネル １ａ 下端面 １ｂ 側端面 １ｃ パネル面 ２ 溝状凹部 ３ 溝状凹部 ４ 露出鉄筋 ５ 露出鉄筋 ６ 梁部材 ７ 差筋 ８ 継手鉄筋 1 PC panel 1a Lower end surface 1b Side end surface 1c Panel surface 2 Groove-shaped recess 3 Groove-shaped recess 4 Exposed reinforcing bar 5 Exposed reinforcing bar 6 Beam member 7 Differential bar 8 Joint reinforcing bar
Claims (3)
交わっている表面部分に前記端面にまで達する細長い溝
状凹部が形成されていて、内部に埋め込まれている鉄筋
の一部が前記溝状凹部内に露出しているとともに前記溝
状凹部の長手方向に沿うように配設されていることを特
徴とするプレキャストコンクリート部材。1. An elongated groove-shaped recess reaching the end surface is formed in a surface portion intersecting with an end surface connected to another concrete member, and a part of a reinforcing bar embedded inside is the groove-shaped recess. A precast concrete member which is exposed inside and is arranged along the longitudinal direction of the groove-shaped recess.
ンクリート部材を現場に建て付けて前記端面を他のコン
クリート部材の接続部位に接合し、前記他のコンクリー
ト部材から突出している差筋を前記プレキャストコンク
リート部材の前記溝状凹部内に配置して当該プレキャス
トコンクリート側の前記鉄筋と重ね合わせ、その状態で
前記溝状凹部内にコンクリートあるいはモルタルを充填
することを特徴とするプレキャストコンクリート部材の
接続方法。2. A precast concrete member having the structure according to claim 1 is built on site, the end face is joined to a connection portion of another concrete member, and the precast concrete protruding from the other concrete member is connected to the precast concrete member. A method for connecting a precast concrete member, characterized in that the precast concrete member is placed in the groove-shaped recess of the concrete member, overlapped with the reinforcing bars on the side of the precast concrete, and in that state, the groove-shaped recess is filled with concrete or mortar.
ストコンクリートを現場に建て付けて互いの前記端面同
士を接合し、両者の前記溝状凹部内に掛け渡すように別
の鉄筋を配設して当該プレキャストコンクリート側の前
記鉄筋と重ね合わせ、その状態で前記溝状凹部内にコン
クリートあるいはモルタルを充填することを特徴とする
プレキャストコンクリート部材の接続方法。3. Two precast concretes having the structure according to claim 1 are built on site to join the end faces to each other, and another reinforcing bar is arranged so as to be bridged in the groove-shaped recesses of both. Then, a method for connecting precast concrete members is characterized in that the reinforcing bars on the side of the precast concrete are superposed on each other, and in that state, concrete or mortar is filled in the groove-shaped recesses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30567292A JP2998464B2 (en) | 1992-11-16 | 1992-11-16 | Precast concrete members for wall panels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30567292A JP2998464B2 (en) | 1992-11-16 | 1992-11-16 | Precast concrete members for wall panels |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06146437A true JPH06146437A (en) | 1994-05-27 |
| JP2998464B2 JP2998464B2 (en) | 2000-01-11 |
Family
ID=17947966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30567292A Expired - Lifetime JP2998464B2 (en) | 1992-11-16 | 1992-11-16 | Precast concrete members for wall panels |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2998464B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009068237A (en) * | 2007-09-12 | 2009-04-02 | Ohbayashi Corp | Joint structure and method for a pair of full prestressed concrete (pc) member, floor structure, and full pc plate member |
| JP2017066712A (en) * | 2015-09-30 | 2017-04-06 | 鹿島建設株式会社 | Joint structure and joining method |
-
1992
- 1992-11-16 JP JP30567292A patent/JP2998464B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009068237A (en) * | 2007-09-12 | 2009-04-02 | Ohbayashi Corp | Joint structure and method for a pair of full prestressed concrete (pc) member, floor structure, and full pc plate member |
| JP2017066712A (en) * | 2015-09-30 | 2017-04-06 | 鹿島建設株式会社 | Joint structure and joining method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2998464B2 (en) | 2000-01-11 |
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