JP2990440B2 - Vertical joining method of precast concrete members - Google Patents
Vertical joining method of precast concrete membersInfo
- Publication number
- JP2990440B2 JP2990440B2 JP2179638A JP17963890A JP2990440B2 JP 2990440 B2 JP2990440 B2 JP 2990440B2 JP 2179638 A JP2179638 A JP 2179638A JP 17963890 A JP17963890 A JP 17963890A JP 2990440 B2 JP2990440 B2 JP 2990440B2
- Authority
- JP
- Japan
- Prior art keywords
- concave hole
- precast concrete
- members
- exposed
- pipe
- 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.)
- Expired - Fee Related
Links
Landscapes
- Joining Of Building Structures In Genera (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明はプレキャストコンクリート部材の鉛直方向接
合方法に関するものである。The present invention relates to a method for vertically joining precast concrete members.
（従来の技術） プレキャストコンクリート部材（以下PC部材と記す）
の鉛直方向接合方法としてスリーブ継手を用いる方法が
知られている。これは、第２図に示すように、上方PC部
材１−ａの下端部にスリーブ継手10がその一方の開口端
が部材下端面２−ａにこれと面一に開口するよう埋設さ
れていて、もう一方の開口からは部材主鉄筋６−ａの下
端部が挿入されている。下方PC部材１−ｂの上端面２−
ｂからは部材主鉄筋６−ｂの上端部が上方に突き出て露
出している。この露出端部がスリーブ継手内に収容され
るように上方PC部材を建て入れる。この際両部材間に目
地モルタル９を介在させる。ついで、部材側壁に開口し
スリーブ継手内に連通する注入口11から流動性の充填材
８をそれがスリーブ継手内に連通し部材側壁に開口する
排出口12から溢れ出るまで注入してスリーブ継手内を充
填材で充填することにより両部材の鉛直方向接合がなさ
れる。(Conventional technology) Precast concrete members (hereinafter referred to as PC members)
A method using a sleeve joint is known as a vertical joining method. As shown in FIG. 2, a sleeve joint 10 is embedded at the lower end of the upper PC member 1-a so that one open end of the sleeve joint 10 is flush with the lower end surface 2-a of the member. The lower end of the member main reinforcing bar 6-a is inserted from the other opening. Upper end surface 2 of lower PC member 1-b
The upper end of the member main reinforcing bar 6-b protrudes upward from b and is exposed. The upper PC member is erected such that the exposed end is accommodated in the sleeve joint. At this time, joint mortar 9 is interposed between both members. A fluid filler 8 is then injected from an inlet 11 which opens into the member side wall and communicates into the sleeve joint until it flows into the sleeve joint and overflows through an outlet 12 which opens into the member side wall. Is filled with a filler, thereby joining the two members in the vertical direction.
この接合方法は、上下対をなす部材間鉄筋の接合に当
り接合作業のための空間を部材端面間に設ける必要がな
く、接合された部材に加わる水平力に対して上下部材に
またがる下方PC部材主鉄筋が抵抗する等の幾多の利点が
ある。In this joining method, it is not necessary to provide a space for joining work between the member end faces in joining the reinforcing bars between the upper and lower members, and the lower PC member which straddles the upper and lower members against the horizontal force applied to the joined members. There are many advantages, such as resistance of the main rebar.
（発明が解決しようとする問題点） スリーブ継手を用いるPC部材の鉛直方向接合方法にお
いては、部材端面から鉄筋端部が突き出て露出している
ので現場における取扱いに不便がある。また、端部にス
リーブ継手を埋設した構造のPC部材は製作時の作業が煩
雑である。(Problems to be Solved by the Invention) In the vertical joining method of the PC member using the sleeve joint, the end of the reinforcing bar protrudes from the end face of the member and is exposed. In addition, the work of manufacturing a PC member having a structure in which a sleeve joint is embedded at the end is complicated.
（問題点を解決するための手段） 本発明のPC部材鉛直方向接合方法を第１図により説明
する。上方PC部材１−ａおよび下方PC部材１−ｂの両部
材を鉛直方向に接合するときの接合端面となるそれそれ
の端面２−ａおよび２−ｂに、該端面に開口する上部凹
穴３−ａおよび下部凹穴３−ｂが設けられている。下部
凹穴３−ｂの底近くにはこの凹穴に連通し下方部材側壁
に開口する注入口４が、上部凹穴３−ａの底近くにはこ
の凹穴に連通し上方PC部材側壁に開口する排出口５が設
けられている。上方部材主鉄筋６−ａの下端部および下
方部材主鉄筋６−ｂの上端部はそれぞれ上部凹穴および
下部凹穴内に突き出て露出している。これら露出鉄筋先
端は好ましくは各部材端面と面一の位置にある。これら
一組の鉄筋６−ａおよび６−ｂは部材接合のとき上下対
をなして接合される関係にあり通常、複数対存在する。(Means for Solving the Problems) The method for vertically joining PC members according to the present invention will be described with reference to FIG. Upper concave holes 3 opening in the end surfaces 2-a and 2-b serving as joint end surfaces when joining both the upper PC member 1-a and the lower PC member 1-b in the vertical direction. -A and a lower concave hole 3-b are provided. Near the bottom of the lower concave hole 3-b, an inlet 4 communicating with this concave hole and opening to the lower member side wall, and near the bottom of the upper concave hole 3-a, communicating with this concave hole and connecting to the upper PC member side wall. A discharge port 5 that opens is provided. The lower end of the upper member main reinforcing bar 6-a and the upper end of the lower member main reinforcing bar 6-b protrude and are exposed in the upper concave hole and the lower concave hole, respectively. These exposed rebar tips are preferably located flush with the end faces of the members. When a pair of reinforcing bars 6-a and 6-b are joined, they are joined in an upper and lower pair, and there are usually a plurality of pairs.
下方PC部材１−ｂを建て入れ、下部凹穴３−ｂ内に拘
束管７を、その中にこの凹穴内に突き出て露出している
部材主鉄筋６−ｂの上端部が遊挿されるように挿入す
る。拘束管の長さは凹穴の深さより大きいので拘束管の
上半部はこの凹穴から上方に突き出て露出している。つ
いで、この露出上半部が上部凹穴内に挿入されるように
かつ、この凹穴内に突き出て露出している部材主鉄筋６
−ａの下端部が拘束管内に遊挿されるように上方PC部材
１−ａを建て入れる。ついで、注入口４から流動性の充
填材８をそれが排出口５から溢れ出るまで注入する。な
お、上方PC部材を建て入れる際両部材間に目地モルタル
９を介在させる。このようにしてPC部材の鉛直方向接合
がなされる。The lower PC member 1-b is erected, the restraining pipe 7 is inserted into the lower concave hole 3-b, and the upper end portion of the member main reinforcing bar 6-b which projects into the concave hole and is exposed is loosely inserted. Insert Since the length of the restraining tube is greater than the depth of the recess, the upper half of the restraining tube projects upward from the recess and is exposed. Then, the member main reinforcing bar 6 is exposed so that the exposed upper half portion is inserted into the upper concave hole and protrudes into the concave hole and is exposed.
The upper PC member 1-a is erected so that the lower end of -a is loosely inserted into the restriction tube. Next, the fluid filler 8 is injected from the inlet 4 until it overflows the outlet 5. When installing the upper PC member, the joint mortar 9 is interposed between both members. In this manner, the PC members are joined in the vertical direction.
注入口から注入される充填材が拘束管内にも円滑に流
入するよう拘束管の下端が注入口より上に位置すること
が必要で、このため下部凹穴は図示するような逆円錐台
形であることが好ましい。また、拘束管の上端は充填材
の円滑な流出のため上部凹穴の底より下に位置すること
が必要である。このため、上部凹穴は図示するような円
錐台形であることが好ましい。なお、この目的のため拘
束管の下端および／または上端に切り込みを設けてもよ
い。The lower end of the confinement tube needs to be positioned above the injection port so that the filler injected from the injection port can also smoothly flow into the confinement tube. Is preferred. Also, the upper end of the constraining tube needs to be located below the bottom of the upper concave hole for the smooth outflow of the filler. For this reason, the upper concave hole is preferably a truncated cone as shown. For this purpose, a cut may be provided at the lower end and / or the upper end of the restraining tube.
拘束管の材質は、鉄筋と同等以上の強度を有するもの
であれば、鋼、鋳鉄、セラミック、プラスチック等なん
でもよい。また、その形状は内面および／または外面に
凹凸のあるものが好ましいがこれがなくてもよい。The material of the constraining tube may be steel, cast iron, ceramic, plastic, or the like as long as the material has a strength equal to or higher than that of the rebar. Further, the shape is preferably one having irregularities on the inner surface and / or the outer surface, but this may not be necessary.
充填材としては、注入時に流動性があって注入後硬化
する材料であれば有機系無機系を問わず使用できるが、
一般には高流動性のモルタルであるグラウトが用いられ
る。As the filler, any material that has fluidity at the time of injection and cures after the injection can be used regardless of whether it is an organic or inorganic material.
Generally, grout, which is a mortar having high fluidity, is used.
凹穴はコンクリート生地のままであってもよく、部材
製作時の凹穴形成材がそのまま埋め殺されたものであっ
てもよい。また、その内面に凹凸を設けてもよい。The concave hole may be a concrete material, or may be a material in which a concave hole forming material at the time of manufacturing the member is buried and killed. Also, irregularities may be provided on the inner surface.
建て入れの際、目地モルタルが下部凹穴内に流入する
ことを防ぐため下部凹穴の回りにパッキン材を配置す
る。At the time of building, a packing material is placed around the lower hollow to prevent the joint mortar from flowing into the lower hollow.
（発明の効果） 本発明のPC部材鉛直方向接合方法は、スリーブ継手を
用いる従来の方法にくらべ以下の利点を有する。すなわ
ち、部材端面から部材鉄筋端部が突き出て露出していな
いから現場における取扱い上の不便がない。さらに、端
部に凹穴を設けた構造のPC部材の製作には、端部にスリ
ーブ継手を埋設した構造のPC部材の製作における作業の
煩雑さがない。(Effects of the Invention) The method for vertically joining PC members of the present invention has the following advantages over the conventional method using a sleeve joint. In other words, there is no inconvenience in handling on site because the end of the member reinforcing bar protrudes from the end surface of the member and is not exposed. Further, in the production of a PC member having a structure in which a concave hole is provided at an end, there is no complicated operation in the production of a PC member having a structure in which a sleeve joint is embedded in an end.
しかも、本発明の方法はスリーブ継手を用いる従来の
方法における利点、すなわち、部材接合端面間に鉄筋接
合のための作業空間を設ける必要のないこと、接合され
た部材に加わる水平力に対して上下部材間にまたがる拘
束管が抵抗する等の利点はそのまま受け継がれる。In addition, the method of the present invention has advantages over the conventional method using a sleeve joint, that is, there is no need to provide a working space for reinforcing bars between member joining end faces, and the vertical direction against horizontal force applied to the joined members. The advantages such as the resistance of the restraining tube extending between the members are inherited as they are.
第１図は本発明によるPC部材接合態様を示す図、第２図
はスリーブ継手を用いる従来のPC部材の接合態様を示す
図である。 図面における記号は以下のとおり。 １−a:上方PC部材、１−b:下方PC部材 ２−a:上方部材下端面、２−b:下方部材上端面 ３−a:上部凹穴、３−b:下部凹穴 4:注入口、5:排出口 ６−a:上方部材主鉄筋、６−b:下方部材主鉄筋 7:拘束管、8:充填材 9:目地モルタル、10:スリーブ継手 11:注入口、12:排出口FIG. 1 is a view showing a PC member joining mode according to the present invention, and FIG. 2 is a view showing a conventional PC member joining mode using a sleeve joint. The symbols in the drawings are as follows. 1-a: Upper PC member, 1-b: Lower PC member 2-a: Upper member lower end surface, 2-b: Lower member upper end surface 3-a: Upper concave hole, 3-b: Lower concave hole 4: Note Inlet, 5: Outlet 6-a: Upper member main reinforcing bar, 6-b: Lower member main reinforcing bar 7: Restraint pipe, 8: Filler 9: Joint mortar, 10: Sleeve joint 11: Inlet, 12: Outlet
Claims (1)
よび下方プレキャストコンクリート部材の、両部材を鉛
直方向に接合するときの接合端面となるそれぞれの端面
に、該端面に開口する凹穴がそれぞれ設けられ、下部凹
穴の底近くには該凹穴と連通し下方部材側壁に開口する
注入口が、また上部凹穴の天井近くには該凹穴と連通し
上方部材側壁に開口する排出口が設けられておりそれぞ
れの部材主鉄筋の端部がこれら凹穴内に突き出て露出し
ている上方および下方プレキャストコンクリート部材を
用い、 建て入れされた下方プレキャストコンクリート部材
の前記凹穴である下部凹穴内に拘束管を、その中にこの
凹穴内に突き出て露出している部材主鉄筋上端部が遊挿
されるようかつ拘束管上半部がこの凹穴から上に突き出
て露出するよう、挿入し、 ついで、下部凹穴の回りに目地モルタル流入防止のた
めのパッキン材を配置し、前記拘束管露出上半部が上方
プレキャストコンクリート部材の前記凹穴である上部凹
穴内に挿入されると共に、この凹穴内に突き出て露出し
ている部材主鉄筋下端部が拘束管内に遊挿されるよう、
かつ接合端面間に目地モルタルが介在されるように上方
プレキャストコンクリート部材を建て入れ、 ついで、下部凹穴に設けられている注入口（これは
該凹穴に挿入されている拘束管の下端より下に位置す
る）から流動性の充填材を、これが上部凹穴に設けられ
ている排出口（これは該凹穴に挿入されている拘束管の
上端より上に位置する）から溢れ出るまで注入し、上部
および下部凹穴ならびに拘束管内に充填材で充填する ことを特徴とするプレキャストコンクリート部材の鉛直
方向接合方法1. An upper precast concrete member and a lower precast concrete member are each provided with a concave hole opening in the end surface at each end surface serving as a joint end surface when the two members are vertically joined, and a lower concave hole is provided. An inlet is provided near the bottom and communicates with the concave hole and opens to the lower member side wall, and near the ceiling of the upper concave hole is an outlet which communicates with the concave hole and opens to the upper member side wall. The upper and lower precast concrete members whose ends of the main reinforcing bars of the members protrude and are exposed in these concave holes are used, and a restraint pipe is inserted into the lower concave hole, which is the concave hole of the lower precast concrete member installed. In order for the upper end of the member main reinforcing bar projecting and exposing into this concave hole to be loosely inserted and the upper half of the restraining pipe to protrude upward from this concave hole and be exposed, Then, a packing material for preventing the inflow of joint mortar is arranged around the lower concave hole, and the upper half portion of the restricted pipe exposed is inserted into the upper concave hole which is the concave hole of the upper precast concrete member. , So that the lower end of the member main reinforcing bar projecting and exposed in the concave hole is loosely inserted into the restraining pipe,
The upper precast concrete member is erected so that the joint mortar is interposed between the joint end surfaces. Then, the injection port provided in the lower concave hole (this is located below the lower end of the restraining pipe inserted in the concave hole) ) Is injected until it overflows from the outlet provided in the upper recess (which is located above the upper end of the restraining tube inserted in the recess). Method for vertically joining precast concrete members, characterized by filling the inside of the upper and lower concave holes and the confining pipe with a filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2179638A JP2990440B2 (en) | 1990-07-09 | 1990-07-09 | Vertical joining method of precast concrete members |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2179638A JP2990440B2 (en) | 1990-07-09 | 1990-07-09 | Vertical joining method of precast concrete members |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0468142A JPH0468142A (en) | 1992-03-03 |
| JP2990440B2 true JP2990440B2 (en) | 1999-12-13 |
Family
ID=16069269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2179638A Expired - Fee Related JP2990440B2 (en) | 1990-07-09 | 1990-07-09 | Vertical joining method of precast concrete members |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2990440B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2579579B2 (en) * | 1992-08-20 | 1997-02-05 | 株式会社ピー・エス | Construction method of cylindrical structure |
| JP3968303B2 (en) * | 2000-10-30 | 2007-08-29 | 株式会社ヤマックス | Reinforcing bar connection method using expansion joint and expansion joint |
| JP2003003572A (en) * | 2001-06-22 | 2003-01-08 | Taiyo Gijutsu Kaihatsu Kk | Connecting method for pc member |
| JP2010255378A (en) * | 2009-04-28 | 2010-11-11 | Panasonic Electric Works Co Ltd | Floor panel |
-
1990
- 1990-07-09 JP JP2179638A patent/JP2990440B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0468142A (en) | 1992-03-03 |
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