JPS62242053A - Construction method of precast reinforced concrete pillar - Google Patents

Construction method of precast reinforced concrete pillar

Info

Publication number
JPS62242053A
JPS62242053A JP8117886A JP8117886A JPS62242053A JP S62242053 A JPS62242053 A JP S62242053A JP 8117886 A JP8117886 A JP 8117886A JP 8117886 A JP8117886 A JP 8117886A JP S62242053 A JPS62242053 A JP S62242053A
Authority
JP
Japan
Prior art keywords
column
sheath
reinforcing bars
concrete
shareholder
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
Application number
JP8117886A
Other languages
Japanese (ja)
Other versions
JPH0692698B2 (en
Inventor
一三 川端
宮崎 直志
小寺 正孝
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.)
Taisei Corp
Original Assignee
Taisei 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 Taisei Corp filed Critical Taisei Corp
Priority to JP8117886A priority Critical patent/JPH0692698B2/en
Publication of JPS62242053A publication Critical patent/JPS62242053A/en
Publication of JPH0692698B2 publication Critical patent/JPH0692698B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

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鉄筋コンクリート柱の施工方法に
係るものである。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method of constructing a precast reinforced concrete column.

(従来の技術) 構造物の柱主鉄筋となる4本以上の大径異形鉄筋を植立
し、柱断面における同各鉄筋の対応位置に夫々柱の全長
に亘って縦貫された鋼管シースを埋設したPC柱を前記
太径異形鉄筋の上部から同各鉄筋が前記各シースに嵌合
するように落し込み、同各シースと前記各鉄筋との間隙
に高強度膨張モルタルを注入、充填するプレキャスト鉄
筋コンクリート柱の施工方法が特公昭51−2724号
公報において提案されている。
(Prior technology) Four or more large-diameter deformed reinforcing bars that will become the main reinforcing bars of a structure's columns are planted, and steel pipe sheaths that run vertically through the entire length of the columns are buried in corresponding positions of each reinforcing bar in the cross section of the column. A precast reinforced concrete in which a precast reinforced concrete column is dropped from above the large-diameter irregularly shaped reinforcing bars so that each of the reinforcing bars fits into each of the sheaths, and high-strength expansion mortar is injected and filled into the gap between each of the sheaths and each of the reinforcing bars. A method for constructing columns is proposed in Japanese Patent Publication No. 51-2724.

(発明が解決しようとする問題点) 前記従来の工法においては下部構造より植立された柱主
鉄筋の1木兄について、同鉄筋の嵌入すべき小断面のシ
ースがPC柱に埋設されているので、柱主鉄筋に対する
PC柱の洛し込みが容易でなく、またシース内部と柱主
鉄筋との間隙が小さく、グラウトの充填が困難であり、
しかも柱主鉄筋の1木兄についてシースが嵌合されるの
でグラウト充填個所が多く、施工に多くの手間と時間と
を要する。
(Problems to be Solved by the Invention) In the conventional construction method, for each of the main reinforcing bars of the column planted from the lower structure, a sheath with a small cross section into which the reinforcing bars should be inserted is buried in the PC column. Therefore, it is not easy to insert the PC column into the column main reinforcement, and the gap between the inside of the sheath and the column main reinforcement is small, making it difficult to fill with grout.
Furthermore, since the sheath is fitted to the first half of the main column reinforcing bar, there are many places to fill with grout, which requires a lot of effort and time for construction.

(問題点を解決するための手段) 本発明はこのような問題点を解決するために提案された
もので、柱断面における柱主鉄筋が配置される部分に、
夫々複数本の柱主鉄筋を束ねて包絡し5るシースが柱を
縦貫して埋設されたPC柱を、下部構造より植立された
株主鉄筋の上部より落し込んで、同柱主鉄筋に前記シー
スな嵌合したのち、同シースと株主鉄筋との間隙にコン
クリートまたはグラウトを充填することを特徴とするも
ので、その目的とする処は、施工性に優れ、構造上信頼
性の高いプレキャスト鉄筋コンクリート柱の施工方法を
提供する点にある。
(Means for Solving the Problems) The present invention was proposed to solve these problems, and in the section of the column where the main reinforcement bars are arranged,
A PC column, in which a sheath that bundles and envelops a plurality of column main reinforcing bars and is buried vertically through the column, is dropped from the top of the stockholder reinforcing bars that have been planted from the lower structure, and the above-mentioned After a sheath is fitted, the gap between the sheath and the shareholder reinforcing steel is filled with concrete or grout.The purpose of this is to use precast reinforced concrete, which has excellent workability and high structural reliability. The point is that it provides a method for constructing columns.

(作用) 本発明は前記したように、柱断面における株主鉄筋が配
置される部分く、複数本の株主鉄筋を束ねて包絡しうる
断面の大きいシースな柱を縦貫して埋設してPC柱を構
成し、同PC柱を下部構造より植立された株主鉄筋の上
部より落し込み、前記各シースに夫々複数の柱主筋を嵌
入せしめる。
(Function) As described above, in the present invention, a sheath column with a large cross section that can bundle and envelop a plurality of shareholder reinforcing bars is buried vertically in the section of the column where the shareholder reinforcing bars are arranged, thereby forming a PC column. The PC column is dropped from the upper part of the stockholder reinforcing bars planted from the lower structure, and a plurality of column main bars are fitted into each of the sheaths.

この際、前記シースは複数本の株主鉄筋を束ねて包絡し
うる大きな断面を有するので、前記株主鉄筋に対するP
C柱の落し込みが容易に行なわれる。
At this time, since the sheath has a large cross section that can bundle and envelop a plurality of shareholder reinforcing bars, the P with respect to the shareholder reinforcing bars is
The C pillar can be easily lowered.

かくして前記PC柱を株主鉄筋に落し込んだのち、前記
シースと同シース内に嵌合された株主鉄筋との間隙にコ
ンクリートまたはグラウトを充填してPC柱と株主鉄筋
とを一体化するもので、この際、前記大きな断面を有す
るシースと柱鉄筋との間に比較的大きな間隙が形成され
るので、コンクリートまたはグラウトの充填が容易に行
なわれる。
In this way, after the PC column is dropped into the shareholder reinforcing bar, the gap between the sheath and the shareholder reinforcing bar fitted into the sheath is filled with concrete or grout to integrate the PC column and the shareholder reinforcing bar, At this time, since a relatively large gap is formed between the sheath having a large cross section and the column reinforcing bars, filling with concrete or grout is easily performed.

かくして構成された鉄筋コンクリート造の柱においては
、株主鉄筋がシースで拘束されるので、荷重の作用時に
挫屈が防止される。
In the reinforced concrete column constructed in this manner, the shareholder reinforcing bars are restrained by the sheath, so buckling is prevented when a load is applied.

(実施例) 以下本発明を図示の実施例について説明する。(Example) The present invention will be described below with reference to the illustrated embodiments.

(NはPC柱で、コンクリート柱本体(1)の断面にお
ける柱帯筋(2)の内側の株主鉄筋が配置されるべき部
分に、夫々複数本の株主鉄筋を束ねて包絡し5る鋼製の
シース(3)が柱本体(1)をFf1貫して埋設されて
いる。
(N is a PC column, which is made of steel with multiple shareholder reinforcing bars bundled and wrapped around each part in the section of the concrete column body (1) where the shareholder reinforcing bars are to be placed inside the column reinforcement (2). A sheath (3) is embedded through the pillar body (1) at a distance Ff1.

なお前記シース(3)は第1図に示す如き方形断面、或
いは第3図に示す如き3角形断面、その他の任意の断面
に形成される。
The sheath (3) may be formed to have a rectangular cross section as shown in FIG. 1, a triangular cross section as shown in FIG. 3, or any other arbitrary cross section.

図中(4)はひび割れ防止筋である。In the figure (4) is a crack prevention line.

而して前記PC柱(A)Kおけるシース(3)部分の位
置に、株主鉄筋(5)を下部構造物、例えば図示の如く
床(B)より植立し、株主鉄筋(5)の上方よりPC柱
(A)を落し込んで間柱の各シース(3)に夫々複数本
の株主鉄筋(5)を挿入し、しかるのち、各シース(3
)内にコンクリート(6)またはグラウトを充填して株
主鉄筋(5)とPC柱(勾とを一体化せしめる。
Then, at the position of the sheath (3) of the PC column (A)K, the stockholder reinforcing bar (5) is planted from the lower structure, for example, the floor (B) as shown in the figure, and the stockholder reinforcing bar (5) is placed above the stockholder reinforcing bar (5). Lower the PC column (A) and insert a plurality of shareholder reinforcing bars (5) into each sheath (3) of the stud, and then insert each sheath (3)
) is filled with concrete (6) or grout to integrate the stockholder reinforcing bars (5) and the PC column (gradient).

図中(C)はPC柱(A)上に架渡されたPC梁、また
は現場打コンクリート梁、Q)は柱頭及び梁間に打設さ
れた現場打ちコンクリートである。
In the figure, (C) is a PC beam or cast-in-place concrete beam spanned over the PC column (A), and Q) is cast-in-place concrete placed between the column head and the beam.

図示の実施例によれば前記したようにPC柱(A)には
複数本の往生鉄a (5)を束ねて包絡し5る断面の大
きいシース(3)が埋設されているので、往生鉄筋1本
毎に1木兄のシースを配設した場合に比してPC柱(3
)の落し込みが容易に行なわれ、またシース(3)内部
へのコンクリート(6)またはグラウトの充填が容易で
あり、且つ充填個所の数も減少する。
According to the illustrated embodiment, as described above, a sheath (3) with a large cross section that bundles and envelops a plurality of passing iron a (5) is embedded in the PC column (A), so that the passing reinforcing steel PC pillars (3
) can be easily dropped into the sheath (3), and filling the inside of the sheath (3) with concrete (6) or grout is also easy, and the number of filling locations is also reduced.

またシース(3)が株主鉄筋(5)を直接拘束すること
となるので、株主鉄筋(5)の挫屈が防止される。
Furthermore, since the sheath (3) directly restrains the shareholder reinforcing bars (5), buckling of the shareholder reinforcing bars (5) is prevented.

なお前記シース(3)内に高強度のコンクリート(6)
またはグラウトを充填することによって、株主鉄筋(5
)とシース(3)との付着性能を向上するものであり、
この際、株主鉄筋(5ン相互間の最少間隔を通常の場合
より小さくしてもコンクリート(6)またはグラウトの
充填が可能となる。
In addition, high-strength concrete (6) is placed inside the sheath (3).
Or by filling with grout, shareholder reinforcing steel (5
) and the sheath (3),
At this time, it is possible to fill with concrete (6) or grout even if the minimum spacing between the shareholder reinforcing bars (5) is smaller than usual.

また前記シース(3)として金網状の部材を使用するこ
とによって、PC柱(Nのコンクリート柱本体(1)と
シース(3)内部のコンクリート(6)またはモルタル
との一体性が強固になる。
Furthermore, by using a wire mesh-like member as the sheath (3), the integrity of the concrete column body (1) of the PC column (N) and the concrete (6) or mortar inside the sheath (3) is strengthened.

以上本発明を実施例について説明したが、本発明は勿論
このような実施例にだけ局限されるものではなく、本発
明の精神を逸脱しない範囲内で植種の設計の改変を施し
うるものである。
Although the present invention has been described above with reference to embodiments, the present invention is of course not limited to such embodiments, and the seed design may be modified without departing from the spirit of the present invention. be.

(発明の効果) 本発明によれば前記したように、PC柱の断面における
株主鉄筋が配置される部分K、複数本の株主鉄筋を束ね
て包絡しうる断面の大きいシースが柱を縦貫し【埋設さ
れているので、往生鉄筋1本毎に1木兄のシースを配設
した従来の場合に比して下部構造より植立された柱主鉄
筋の上部からPC柱を落し込みが容易に行なわれ、また
シースと同シース内の株主鉄筋群との間隙が従来の場合
より大きくなり、シース内に対するコンクリートまたは
グラウトの充填が容易に行なわれ、且つ充填個所も少な
く、施工性が向上され工期が短縮される。
(Effects of the Invention) According to the present invention, as described above, in the section K of the cross section of the PC column where shareholder reinforcing bars are arranged, a sheath with a large cross section that can bundle and envelop a plurality of shareholder reinforcing bars runs longitudinally through the column [ Since the PC column is buried, it is easier to lower the PC column from the top of the column main reinforcing bar that is planted from the lower structure, compared to the conventional case where a one-piece sheath is placed for each passing reinforcing bar. In addition, the gap between the sheath and the group of shareholder reinforcing bars within the same sheath is larger than in the conventional case, making it easier to fill the sheath with concrete or grout, and there are fewer places to fill, improving workability and shortening the construction period. be shortened.

また前記したようにシースと同シース内の株主鉄筋群と
の間隙が大きいので、シース内に充填されたコンクリー
トまたはモルタルが柱主鉄筋に十分に付着し、同柱主鉄
筋とコンクリートまたはモルタルとの一体性が向上し、
更Kまたシースが柱主鉄筋を直接拘束することによって
、柱主鉄筋の挫屈が防止されることと相俟って、構造上
の信頼性が増大される。
In addition, as mentioned above, since the gap between the sheath and the shareholder reinforcing bars in the same sheath is large, the concrete or mortar filled in the sheath adheres sufficiently to the main reinforcing bars of the column, and the main reinforcing bars of the column and the concrete or mortar are Increased unity,
Further, since the sheath directly restrains the column main reinforcing bars, buckling of the column main reinforcing bars is prevented, and structural reliability is increased.

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

第1図は本発明に係るプレキャスト鉄筋コンクリート柱
の施工方法の一実施例の実施状況を示す横断平面図で、
第2図の矢視ト」図である。第2図は前記本発明の方法
の一実施例の実施状況な示す正面図、WJ3図は本発明
の方法の他の実施例の実施状況を示す横断平面図である
。 (8・・・pc柱、   (B)・・・床、(1)・・
・コンクリート柱本体、(3)・・・シース、(5)・
・・柱主鉄筋、  (6)・・・コンクリート代理人 
弁理士 岡 本 重 文 外2名
FIG. 1 is a cross-sectional plan view showing the implementation status of one embodiment of the method for constructing precast reinforced concrete columns according to the present invention.
2 is a view from the arrow in FIG. 2. FIG. 2 is a front view showing the state of implementation of one embodiment of the method of the present invention, and FIG. 3 is a cross-sectional plan view showing the state of implementation of another embodiment of the method of the present invention. (8...pc pillar, (B)...floor, (1)...
・Concrete column body, (3)...sheath, (5)・
・・Column main reinforcement, (6)・・・Concrete agent
Patent attorney: Shige Okamoto (2 persons)

Claims (1)

【特許請求の範囲】[Claims] 柱断面における柱主鉄筋が配置される部分に、夫々複数
本の柱主鉄筋を束ねて包絡しうるシースが柱を縦貫して
埋設されたPC柱を、下部構造より植立された柱主鉄筋
の上部より落し込んで、同柱主鉄筋に前記シースを嵌合
したのち、同シースと柱主鉄筋との間隙にコンクリート
またはグラウトを充填することを特徴とするプレキャス
ト鉄筋コンクリート柱の施工方法。
In the section of the column cross section where the main column reinforcing bars are placed, a PC column is embedded with a sheath that can bundle and envelop multiple main column reinforcing bars running through the column. A method for constructing a precast reinforced concrete column, the method comprising: lowering the sheath from the top of the column, fitting the sheath to the column's main reinforcing bars, and then filling the gap between the sheath and the column's main reinforcing bars with concrete or grout.
JP8117886A 1986-04-10 1986-04-10 Precast Cast Reinforced Concrete Column Construction Method Expired - Lifetime JPH0692698B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8117886A JPH0692698B2 (en) 1986-04-10 1986-04-10 Precast Cast Reinforced Concrete Column Construction Method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8117886A JPH0692698B2 (en) 1986-04-10 1986-04-10 Precast Cast Reinforced Concrete Column Construction Method

Publications (2)

Publication Number Publication Date
JPS62242053A true JPS62242053A (en) 1987-10-22
JPH0692698B2 JPH0692698B2 (en) 1994-11-16

Family

ID=13739211

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8117886A Expired - Lifetime JPH0692698B2 (en) 1986-04-10 1986-04-10 Precast Cast Reinforced Concrete Column Construction Method

Country Status (1)

Country Link
JP (1) JPH0692698B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH028011A (en) * 1988-06-28 1990-01-11 Ohbayashi Corp Concrete form device of centrifugal concrete molder
JPH02292444A (en) * 1989-04-30 1990-12-03 Kudan Kenchiku Kenkyusho:Kk Precast concrete column

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH028011A (en) * 1988-06-28 1990-01-11 Ohbayashi Corp Concrete form device of centrifugal concrete molder
JPH02292444A (en) * 1989-04-30 1990-12-03 Kudan Kenchiku Kenkyusho:Kk Precast concrete column

Also Published As

Publication number Publication date
JPH0692698B2 (en) 1994-11-16

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