JPH07269025A - Placing joint method - Google Patents

Placing joint method

Info

Publication number
JPH07269025A
JPH07269025A JP8581194A JP8581194A JPH07269025A JP H07269025 A JPH07269025 A JP H07269025A JP 8581194 A JP8581194 A JP 8581194A JP 8581194 A JP8581194 A JP 8581194A JP H07269025 A JPH07269025 A JP H07269025A
Authority
JP
Japan
Prior art keywords
coupler nut
screw
nut
reinforcing bar
coupler
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
JP8581194A
Other languages
Japanese (ja)
Inventor
Hiroshi Imai
博 今井
Tatsuya Mukasa
達也 武笠
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.)
Tokyo Tekko Co Ltd
Original Assignee
Tokyo Tekko 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 Tokyo Tekko Co Ltd filed Critical Tokyo Tekko Co Ltd
Priority to JP8581194A priority Critical patent/JPH07269025A/en
Publication of JPH07269025A publication Critical patent/JPH07269025A/en
Pending legal-status Critical Current

Links

Landscapes

  • Reinforcement Elements For Buildings (AREA)

Abstract

PURPOSE:To increase connection strength between a coupler nut of the existing reinforced concrete structural body and a screw reinforcing bar of a reinforced concrete structural body to be newly placed and jointed at a low cost. CONSTITUTION:In the existing reinforced concrete structural body 10, one end of a coupler nut 12 is screwed to one end of a screw reinforcing bar 11, and they are connected by fastening a lock nut 13. The other end of the coupler nut 12 is opened in the surface of a concrete 14. In the case of placing joint, grout 30 is stored in a screw hole 12x of the coupler nut 12 in advance, and the end of a screw reinforcing bar 21 is screwed from an opening in the other end of the coupler nut 12. According to the constitution, the coupler nut 12 is connected to the screw reinforcing bar 21 in a state to put the grout between the inside circumferential surface of the coupler nut 12 and the circumferential surface of the screw reinforcing bar 21.

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、建築,土木等の分野に
おいて採用されている鉄筋コンクリート構造体の打ち継
ぎ工法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a piecing method for reinforced concrete structures used in the fields of construction, civil engineering and the like.

【0002】[0002]

【従来の技術】従来の打ち継ぎ工法の一例が、特開平5
ー171740号に開示されている。この工法では、ね
じ鉄筋の一端部にカプラーナットの一端部を螺合させた
状態でコンクリートを打ち込むことにより、鉄筋コンク
リート構造体を製造する。この構造体では、コンクリー
トの外面にカプラーナットの他端が開口している。この
既設の鉄筋コンクリート構造体に、新たに鉄筋コンクリ
ート構造体を打ち継ぐ場合、ねじ鉄筋の端部をカプラー
ナットに捩込んで連結した後で、コンクリートを打設す
る。
2. Description of the Related Art An example of a conventional splicing method is disclosed in Japanese Patent Laid-Open No.
No. 171740. In this construction method, a reinforced concrete structure is manufactured by driving concrete with one end of a coupler nut screwed into one end of a screw reinforcing bar. In this structure, the other end of the coupler nut is open on the outer surface of the concrete. When newly joining a reinforced concrete structure to this existing reinforced concrete structure, the end of the screw reinforcing bar is screwed into the coupler nut and connected, and then the concrete is placed.

【0003】上記公報の打ち継ぎ工法では、ねじ鉄筋を
カプラーナットにねじ込んだ後に、両者の間にグラウト
材を充填して連結強度を高めている。詳述すると、注入
管がカプラーナットに装着されている。この注入管はカ
プラーナットの外周面に沿ってその軸線方向に延びてお
り、一端がカプラーナットの中央部を貫通してその内周
面に開口しており、他端がカプラーナットの他端におい
て開口している。グラウト材は注入管の開口から注入さ
れ、注入管を通ってカプラーナットの中央部から内部に
入り込み、その注入圧力により、カプラーナットの内周
面とねじ鉄筋の外周面との間の僅かな隙間に充填され
る。
In the splicing method of the above-mentioned publication, after the screw rebar is screwed into the coupler nut, a grout material is filled between the two to enhance the connection strength. Specifically, the injection tube is attached to the coupler nut. This injection pipe extends in the axial direction along the outer peripheral surface of the coupler nut, has one end penetrating the central portion of the coupler nut and opening to the inner peripheral surface, and the other end at the other end of the coupler nut. It is open. The grout material is injected from the opening of the injection pipe, enters the inside of the coupler nut from the center through the injection pipe, and the injection pressure causes a slight gap between the inner peripheral surface of the coupler nut and the outer peripheral surface of the screw rebar. To be filled.

【0004】[0004]

【発明が解決しようとする課題】上述の工法では、注入
管を必要とするためカプラーナットの構成が複雑であ
り、また、グラウト材に注入圧力をかけるグラウト注入
装置が必要であった。その結果、コスト高を招いてい
た。
In the above-mentioned construction method, since the injection pipe is required, the structure of the coupler nut is complicated, and the grout injection device for applying injection pressure to the grout material is required. As a result, the cost is high.

【0005】[0005]

【課題を解決するための手段】上記課題を解決するた
め、請求項1では、ねじ鉄筋の一端部にカプラーナット
の一端部を螺合させ、このカプラーナットの他端をコン
クリート面に開口させてなる既設の鉄筋コンクリート構
造体に、新たな鉄筋コンクリート構造体を打ち継ぐ工法
において、予め上記カプラーナットのねじ孔にグラウト
材を収容し、新たな鉄筋コンクリート構造体の構成要素
となるべきねじ鉄筋の端部を、このカプラーナットの他
端開口からねじ込むことにより、グラウト材をカプラー
ナットの内周面とこのねじ鉄筋の外周面との間に介在さ
せた状態で、これらカプラーナットとねじ鉄筋とを連結
することを特徴とする。請求項2では、請求項1のよう
に予め上記カプラーナットのねじ孔にグラウト材を収容
する代わりに、予めねじ鉄筋の端部にグラウト材を塗布
することを特徴とする。
In order to solve the above-mentioned problems, in the present invention, one end of the coupler nut is screwed into one end of the screw rebar, and the other end of the coupler nut is opened in the concrete surface. In the existing reinforced concrete structure consisting of, in the method of striking a new reinforced concrete structure, the grout material is housed in the screw hole of the coupler nut in advance, and the end of the screw reinforcing bar to be the constituent element of the new reinforced concrete structure is , By connecting the grout material between the inner peripheral surface of the coupler nut and the outer peripheral surface of the screw rebar by screwing it in from the other end opening of the coupler nut, the coupler nut and the screw rebar are connected. Is characterized by. According to a second aspect of the invention, instead of accommodating the grout material in the screw hole of the coupler nut in advance as in the first aspect, the grout material is applied to the end portion of the screw rebar in advance.

【0006】[0006]

【作用】請求項1では、予めカプラーナットのねじ孔に
グラウト材が収容されており、このカプラーナットに新
たな鉄筋コンクリート構造体の構成要素となるべきねじ
鉄筋の端部をねじ込むと、このねじ込みに伴ってグラウ
ト材がカプラーナットの内周面とねじ鉄筋の端部外周面
との間の隙間に入り込む。このグラウト材の硬化により
カプラーナットとねじ鉄筋の連結強度を高めることがで
きる。請求項2では、予めねじ鉄筋の端部外周面にグラ
ウト材が塗布されており、このねじ鉄筋の端部をカプラ
ーナットにねじ込むことにより、グラウト材がねじ鉄筋
の端部外周面とカプラーナットの内周面との間の隙間に
入り込む。その結果、請求項1と同様にカプラーナット
とねじ鉄筋の連結強度を高めることができる。請求項
1,2で共通するのは、カプラーナットはねじ孔を有す
るだけの非常に単純な形状で済むことと、ねじ鉄筋のね
じ込みだけでグラウト材の充填が行われ、特別にグラウ
ト材充填装置を用いなくて済むことである。
According to the present invention, the grout material is previously housed in the screw hole of the coupler nut, and when the end portion of the screw rebar to be a constituent element of the new reinforced concrete structure is screwed into the coupler nut, the screw is screwed into the screw. Along with this, the grout material enters into the gap between the inner peripheral surface of the coupler nut and the outer peripheral surface of the end portion of the screw rebar. By hardening the grout material, the coupling strength between the coupler nut and the screw reinforcing bar can be increased. In claim 2, the grout material is previously applied to the outer peripheral surface of the end portion of the screw rebar, and the end portion of the screw rebar is screwed into the coupler nut, so that the grout material forms the outer peripheral surface of the end portion of the screw rebar and the coupler nut. Enters the gap between the inner surface. As a result, the coupling strength between the coupler nut and the screw reinforcing bar can be increased as in the first aspect. Claims 1 and 2 have in common that the coupler nut has a very simple shape having only a screw hole, and the grout material is filled only by screwing the screw rebar, and the special grout material filling device is provided. It is not necessary to use.

【0007】[0007]

【実施例】以下、本発明を図1,図2を参照しながら、
壁に梁を打ち継ぐ工法を例にとって説明する。まず、図
2を参照しながらこの打ち継ぎ工法の概略を説明する。
図2(A)に示すように、複数のねじ鉄筋11の一端部
にカプラーナット12の一端部を螺合させる。この螺合
状態において、ねじ鉄筋11の一端部に予め螺合させて
おいたロックナット13を、カプラーナット12に向か
ってトルクをかけて締め付けることにより、ねじ鉄筋1
1とカプラーナット12とを強固に連結する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to FIGS.
An example of a construction method of joining beams to a wall will be described. First, an outline of this splicing method will be described with reference to FIG.
As shown in FIG. 2A, one end of the coupler nut 12 is screwed into one end of the plurality of screw reinforcing bars 11. In this screwed state, the lock nut 13 screwed in advance to one end of the screw reinforcing bar 11 is tightened by applying torque to the coupler nut 12 to tighten the screw reinforcing bar 1.
1 and the coupler nut 12 are firmly connected.

【0008】次に、カプラーナット12の他端開口12
aを図示しないキャップで閉塞するとともに型枠15に
当てた状態で、上記ねじ鉄筋11を型枠15内に収容
し、この型枠15内にコンクリート14を打設すること
により、図2(B)に示す鉄筋コンクリート構造体とし
ての壁10を構築する。コンクリート14養生後に、型
枠15を取り外すとともに、カプラーナット12の他端
開口12aからキャップをはずす。これにより、カプラ
ーナット12の他端開口12aがコンクリート14の面
に現れる。
Next, the other end opening 12 of the coupler nut 12
2A by closing the a with a cap (not shown) and applying it to the mold 15, the screw rebar 11 is housed in the mold 15 and concrete 14 is placed in the mold 15. The wall 10 as a reinforced concrete structure shown in FIG. After curing the concrete 14, the form 15 is removed and the cap is removed from the other end opening 12a of the coupler nut 12. As a result, the other end opening 12a of the coupler nut 12 appears on the surface of the concrete 14.

【0009】次に、図2(C)に示すように、予めロッ
クナット23を螺合させた梁(鉄筋コンクリート構造
体)用のねじ鉄筋21の端部を、カプラーナット12に
ねじ込む。そして、ねじ鉄筋21のねじ込み終了後に、
図2(D)に示すようにロックナット23をカプラーナ
ット12に向かってトルクをかけて締め付けることによ
り、ねじ鉄筋21とカプラーナット12の連結強度を高
める。
Next, as shown in FIG. 2 (C), the end of the threaded reinforcing bar 21 for the beam (reinforced concrete structure) to which the lock nut 23 is screwed in advance is screwed into the coupler nut 12. Then, after the screwing of the screw rebar 21 is completed,
As shown in FIG. 2D, torque is applied to the lock nut 23 toward the coupler nut 12 to tighten the lock nut 23, thereby increasing the coupling strength between the screw reinforcing bar 21 and the coupler nut 12.

【0010】次に、図1を参照しながら上記実施例を詳
細に説明する。カプラーナット12は、その全長にわた
って軸方向に貫通するねじ孔12xを有している。図1
(A)に示すように、壁10のねじ鉄筋11(ねじフシ
11aを有する鉄筋)の端部は、このねじ孔12xの左
半分までねじ込まれる。カプラーナット12の中央部の
外形は多角形をなしており、ロックナット13をカプラ
ーナット12に対してトルクをかけて締め付ける際に、
このカプラーナットの中央部に治具を掛けてその回動を
防止するようになっている。
Next, the above embodiment will be described in detail with reference to FIG. The coupler nut 12 has a screw hole 12x penetrating in the axial direction over its entire length. Figure 1
As shown in (A), the end portion of the threaded reinforcing bar 11 (reinforcing bar having the threaded fastener 11a) of the wall 10 is screwed to the left half of the screw hole 12x. The outer shape of the central portion of the coupler nut 12 is polygonal, and when the lock nut 13 is tightened by applying torque to the coupler nut 12,
A jig is hung on the central portion of the coupler nut to prevent its rotation.

【0011】本実施例の特徴は、梁用のねじ鉄筋21
(ねじフシ21aを有する鉄筋)をカプラーナット12
にねじ込む前に、図1(A)に示すように、グラウト材
30をカプラーナット12のねじ孔12xの右半分の奥
に収容させておくことにある。この状態で、梁用のねじ
鉄筋21の端部を、カプラーナット12の開口12aか
ら、壁10のねじ鉄筋11の端部に当たるまでねじ込
む。すなわち、ねじ孔12xの半分までねじ鉄筋21を
ねじ込む。このねじ込みの際に、ねじ鉄筋11,21間
の空間が狭められるため、グラウト材30は圧力を受け
てねじ鉄筋21の外周面とねじ孔12xの内周面との間
の隙間に充填され、余った部分がカプラーナット12の
開口12aから漏れ出る。漏れ出たグラウト材30は除
去される。
The feature of this embodiment is that a threaded reinforcing bar 21 for a beam is used.
(Reinforcing bar with screw bushing 21a) to coupler nut 12
Before screwing in, as shown in FIG. 1 (A), the grout material 30 is housed in the inner part of the right half of the screw hole 12x of the coupler nut 12. In this state, the end of the threaded reinforcing bar 21 for the beam is screwed through the opening 12a of the coupler nut 12 until it comes into contact with the end of the threaded reinforcing bar 11 of the wall 10. That is, the screw rebar 21 is screwed in up to half of the screw hole 12x. At the time of this screwing in, the space between the screw rebars 11 and 21 is narrowed, so that the grout material 30 receives pressure and fills the gap between the outer peripheral surface of the screw rebar 21 and the inner peripheral surface of the screw hole 12x. The excess portion leaks out from the opening 12a of the coupler nut 12. The leaked grout material 30 is removed.

【0012】次に、ロックナット23をトルクをかけて
カプラーナット12に対して締め付ける。このロックナ
ット23の締め付けと、上記グラウト材30の硬化によ
り、ねじ鉄筋21は、強固にカプラーナット12に連結
される。次に、梁用の型枠でねじ鉄筋21を囲んだ状態
でコンクリートを打設することにより、梁を構築する。
Next, the lock nut 23 is tightened to the coupler nut 12 by applying torque. By tightening the lock nut 23 and hardening the grout material 30, the screw reinforcing bar 21 is firmly connected to the coupler nut 12. Next, the beam is constructed by placing concrete in a state in which the screw reinforcing bar 21 is surrounded by a frame for the beam.

【0013】上記実施例において、グラウト材30をカ
プラーナット12のねじ孔12xに収容する態様は種々
考えられる。例えば、グラウト材をねじ孔12xのの右
半分のほぼ全長にわたって少しずつ分けて収容してもよ
い。また、ねじ孔12xの内周面全域にグラウト材を塗
布するようにしてもよい。
In the above-described embodiment, various forms of housing the grout material 30 in the screw hole 12x of the coupler nut 12 are possible. For example, the grout material may be stored little by little over substantially the entire length of the right half of the screw hole 12x. Alternatively, the grout material may be applied to the entire inner peripheral surface of the screw hole 12x.

【0014】図3に示すように、ねじ鉄筋21の端部の
外周面にグラウト材30を塗布した状態で、カプラーナ
ット12のねじ孔12xにねじ込んでもよい。この場合
にも、ねじ鉄筋21の外周面とカプラーナット12の内
周面との間の隙間にグラウト材30が充填される。ねじ
鉄筋21をカプラーナット12にねじ込んだ後は、上記
実施例と同様に、ロックナット23で締め付ける。
As shown in FIG. 3, the grout material 30 may be applied to the outer peripheral surface of the end portion of the screw reinforcing bar 21 and screwed into the screw hole 12x of the coupler nut 12. Also in this case, the grout material 30 is filled in the gap between the outer peripheral surface of the screw reinforcing bar 21 and the inner peripheral surface of the coupler nut 12. After the screw rebar 21 is screwed into the coupler nut 12, the lock nut 23 is tightened as in the above embodiment.

【0015】本発明は上記実施例に制約されず、種々の
態様が可能である。例えば上記実施例では、ロックナッ
ト23の締付とグラウト材30の充填硬化により、カプ
ラーナット12とねじ鉄筋21の連結強度を高めている
が、ロックナット23を省き、鉄筋21にトルクをかけ
て締め付けるだけでもよい。
The present invention is not limited to the above embodiment, but various modes are possible. For example, in the above embodiment, the coupling strength between the coupler nut 12 and the screw rebar 21 is increased by tightening the lock nut 23 and filling and hardening the grout material 30, but the lock nut 23 is omitted and torque is applied to the rebar 21. Just tighten it.

【0016】[0016]

【発明の効果】以上説明したように、請求項1,2の発
明によれば、簡単な構造のカプラーナットを用い、グラ
ウト注入装置を用いずに既設の鉄筋コンクリート構造物
のカプラーナットの内周面と、新たに打ち継ぐべき鉄筋
コンクリート構造物のねじ鉄筋の端部の外周面との間の
隙間にグラウト材を充填することができ、低コストでね
じ鉄筋とカプラーナットの連結強度を高めることができ
る。
As described above, according to the first and second aspects of the present invention, the inner peripheral surface of the coupler nut of the existing reinforced concrete structure is used without using the grout injection device by using the coupler nut having a simple structure. It is possible to fill the gap between the outer peripheral surface of the end of the screw rebar of the reinforced concrete structure to be newly spliced with grout material, and to increase the connection strength between the screw rebar and the coupler nut at low cost. .

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

【図1】本発明の打ち継ぎ工法の一実施例を示すもので
あり、既設の鉄筋コンクリート構造物のカプラーナット
に、新たに打ち継ぐべき鉄筋コンクリート構造物のねじ
鉄筋の端部を連結する工程を、(A)〜(C)の順で示
す拡大断面図である。
FIG. 1 is a view showing an example of a splicing method of the present invention, which shows a step of connecting an end portion of a screw reinforcing bar of a reinforced concrete structure to be newly spliced to a coupler nut of an existing reinforced concrete structure, It is an expanded sectional view shown in order of (A)-(C).

【図2】同実施例の工法の概略を(A)〜(D)の順で
示す断面図である。
FIG. 2 is a cross-sectional view showing the outline of the construction method of the same example in the order of (A) to (D).

【図3】他の実施例を示す拡大断面図である。FIG. 3 is an enlarged cross-sectional view showing another embodiment.

【符号の説明】[Explanation of symbols]

10 … 壁(既設の鉄筋コンクリート構造体) 11 … ねじ鉄筋 12 … カプラーナット 12a … 開口 12x … ねじ孔 13 … ロックナット 21 … ねじ鉄筋 23 … ロックナット 30 … グラウト材 10 ... Wall (existing reinforced concrete structure) 11 ... Screw rebar 12 ... Coupler nut 12a ... Opening 12x ... Screw hole 13 ... Lock nut 21 ... Screw rebar 23 ... Lock nut 30 ... Grout material

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 ねじ鉄筋の一端部にカプラーナットの一
端部を螺合させ、このカプラーナットの他端をコンクリ
ート面に開口させてなる既設の鉄筋コンクリート構造体
に、新たな鉄筋コンクリート構造体を打ち継ぐ工法にお
いて、 予め上記カプラーナットのねじ孔にグラウト材を収容
し、新たな鉄筋コンクリート構造体の構成要素となるべ
きねじ鉄筋の端部を、このカプラーナットの他端開口か
らねじ込むことにより、グラウト材をカプラーナットの
内周面とこのねじ鉄筋の外周面との間に介在させた状態
で、これらカプラーナットとねじ鉄筋とを連結すること
を特徴とする打ち継ぎ工法。
1. A new reinforced concrete structure is spliced to an existing reinforced concrete structure formed by screwing one end of a coupler nut onto one end of a screw rebar and opening the other end of the coupler nut on a concrete surface. In the method of construction, the grout material is housed in the screw hole of the coupler nut in advance, and the end portion of the screw rebar to be a constituent element of the new reinforced concrete structure is screwed into the other end opening of the coupler nut, thereby making the grout material. A splicing method, wherein the coupler nut and the screw reinforcing bar are connected to each other while being interposed between the inner peripheral surface of the coupler nut and the outer peripheral surface of the screw reinforcing bar.
【請求項2】 ねじ鉄筋の一端部にカプラーナットの一
端部を螺合させ、このカプラーナットの他端をコンクリ
ート面に開口させてなる既設の鉄筋コンクリート構造体
に、新たな鉄筋コンクリート構造体を打ち継ぐ工法にお
いて、 新たな鉄筋コンクリート構造体の構成要素となるべきね
じ鉄筋の端部の外周にグラウト材を塗布した状態で、こ
のねじ鉄筋の端部を上記カプラーナットの他端開口から
カプラーナットのねじ孔にねじ込むことにより、グラウ
ト材をカプラーナットの内周面とねじ鉄筋の外周面との
間に介在させた状態で、これらカプラーナットとねじ鉄
筋とを連結することを特徴とする打ち継ぎ工法。
2. A new reinforced concrete structure is spliced to an existing reinforced concrete structure in which one end of a coupler nut is screwed into one end of a screw rebar and the other end of the coupler nut is opened in a concrete surface. In the construction method, with the grout material applied to the outer periphery of the end of the screw rebar to be a component of the new reinforced concrete structure, insert the end of this screw rebar from the other end opening of the coupler nut into the screw hole of the coupler nut. A splicing method in which the coupler nut and the screw reinforcing bar are connected to each other with the grout material being interposed between the inner peripheral surface of the coupler nut and the outer peripheral surface of the screw reinforcing bar by being screwed into.
JP8581194A 1994-03-31 1994-03-31 Placing joint method Pending JPH07269025A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8581194A JPH07269025A (en) 1994-03-31 1994-03-31 Placing joint method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8581194A JPH07269025A (en) 1994-03-31 1994-03-31 Placing joint method

Publications (1)

Publication Number Publication Date
JPH07269025A true JPH07269025A (en) 1995-10-17

Family

ID=13869255

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8581194A Pending JPH07269025A (en) 1994-03-31 1994-03-31 Placing joint method

Country Status (1)

Country Link
JP (1) JPH07269025A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010261241A (en) * 2009-05-08 2010-11-18 Nichireki Co Ltd Dowel bar, dowel bar unit, and method for embedding the dowel bar
CN105735568A (en) * 2016-04-26 2016-07-06 中民筑友科技投资有限公司 Grouting sleeve and prefabricated member
JP2018059387A (en) * 2016-09-29 2018-04-12 Jfe条鋼株式会社 Injection method of filler to screw reinforcement joint part and cartridge for accommodating filler

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0455571A (en) * 1990-06-22 1992-02-24 Nippon Steel Corp Reinforcement construction joint method of reinforced concrete construction

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0455571A (en) * 1990-06-22 1992-02-24 Nippon Steel Corp Reinforcement construction joint method of reinforced concrete construction

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010261241A (en) * 2009-05-08 2010-11-18 Nichireki Co Ltd Dowel bar, dowel bar unit, and method for embedding the dowel bar
CN105735568A (en) * 2016-04-26 2016-07-06 中民筑友科技投资有限公司 Grouting sleeve and prefabricated member
JP2018059387A (en) * 2016-09-29 2018-04-12 Jfe条鋼株式会社 Injection method of filler to screw reinforcement joint part and cartridge for accommodating filler

Similar Documents

Publication Publication Date Title
US5366672A (en) Method of forming concrete structures with a grout splice sleeve which has a threaded connection to a reinforcing bar
JPH0748879A (en) Connecting method and connecting structure for member
KR101918014B1 (en) Coupler apparatus for connecting reinforcing bar using sleeve with tapered internal thread, and reinforcing bar connecting method using the same
KR101926125B1 (en) Coupler apparatus for connecting reinforcing bar using sleeve with flat internal thread, and reinforcing bar connecting method using the same
JPH07269025A (en) Placing joint method
JPWO2002036900A1 (en) Expansion joint and rebar connection method using expansion joint
JP2973812B2 (en) Joint structure between steel members and concrete members
JP2002030763A (en) Joint structure for reinforcing bar
JPH1181452A (en) Main reinforcement joint structure for pc beam
JPH06248758A (en) Frp tension material anchoring device
JPH0455571A (en) Reinforcement construction joint method of reinforced concrete construction
JPS62264234A (en) Square steel pipe concrete pillar
JPH03144041A (en) Bonding method of precast concrete member
JPH09221915A (en) Prestress introducing unit
JP3889283B2 (en) Fixing hardware for screw rebar
JP2835932B2 (en) Rebar connection device
JPH10311087A (en) Connecting method for columnar prefabricated reinforcements
JP2574191Y2 (en) Fitting for threaded steel
JP2002004498A (en) Pc steel stranded wire connecting structure and execution method for it
JPH10317585A (en) Connecting device for screw reinforcement
JPH03212537A (en) Connecting method of reinforcement of precast concrete member
JP2003268922A (en) Anchorage body of pc steel member
JPS62264236A (en) Square steel pipe concrete pillar
JPH08290419A (en) Method and tool for closing end of screw reinforcing bar embedded grout hole
JPS621336Y2 (en)