JPH04237732A - Constructing method for partial precast pillar with core reinforcement bar - Google Patents
Constructing method for partial precast pillar with core reinforcement barInfo
- Publication number
- JPH04237732A JPH04237732A JP594491A JP594491A JPH04237732A JP H04237732 A JPH04237732 A JP H04237732A JP 594491 A JP594491 A JP 594491A JP 594491 A JP594491 A JP 594491A JP H04237732 A JPH04237732 A JP H04237732A
- Authority
- JP
- Japan
- Prior art keywords
- column
- concrete
- core
- core reinforcing
- precast
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 7
- 230000002787 reinforcement Effects 0.000 title abstract description 21
- 239000004567 concrete Substances 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 8
- 230000003014 reinforcing effect Effects 0.000 claims description 38
- 238000010276 construction Methods 0.000 claims description 16
- 239000011150 reinforced concrete Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 abstract 3
- 239000010959 steel Substances 0.000 abstract 3
- 238000009415 formwork Methods 0.000 description 3
- 239000011440 grout Substances 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
Landscapes
- Rod-Shaped Construction Members (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は高層鉄筋コンクリート（
以下ＲＣと称す）建物の下層階の施工に適用される芯鉄
筋を有する部分プレキヤスト柱工法に係るものである。[Industrial Application Field] The present invention applies to high-rise reinforced concrete (
(hereinafter referred to as RC) relates to a partial precast column construction method with core reinforcing bars that is applied to the construction of the lower floors of buildings.
【０００２】0002
【従来の技術】高層ＲＣ建物の下層階に適用される柱は
通常の建物の柱にくらべて施工が複雑となる。図６乃至
図９は従来の柱部分の現場施工工程を示し、柱主筋ａ及
び芯鉄筋ｂを下層部の鉄筋Ｃと溶接ｗ接合し、芯フープ
筋ｄが梁下端まで配筋し、フープ筋ｅを梁下端まで配筋
し、柱部分の型枠ｆを設置して梁下端までコンクリート
を打設する。（図６及び図７参照）先組工法の場合、柱
主筋ａ及びフープ筋ｅと、芯鉄筋ｂ及び芯フープ筋ｄを
それぞれ先組し、先組した鉄筋ｇをクレーンによって所
定の位置に配置し、下層部の鉄筋Ｃと溶接ｗ接合し、柱
部分の型枠ｆを設置して梁下端までコンクリートを打設
する。（図７参照）かくして梁下端までコンクリートを
打設したのち、梁接合部及びスラブ筋を配筋してコンク
リートを打設する。（図８参照）図中ｈは梁、ｉはスラ
ブである。BACKGROUND OF THE INVENTION Columns applied to the lower floors of high-rise RC buildings are more complex to construct than columns of ordinary buildings. Figures 6 to 9 show the conventional on-site construction process for column parts, in which the main column reinforcement a and the core reinforcement b are welded together with the lower reinforcing reinforcement C, the core hoop reinforcement d is arranged up to the lower end of the beam, and the hoop reinforcement Reinforce e to the bottom end of the beam, install formwork f for the column, and pour concrete up to the bottom end of the beam. (Refer to Figures 6 and 7) In the case of pre-assembled construction method, main column reinforcement a and hoop reinforcement e, core reinforcing bar b and core hoop reinforcement d are respectively pre-assembled, and the pre-assembled reinforcing bar g is placed in a predetermined position by a crane. Then, it is welded to the reinforcing steel C on the lower layer, and the formwork f for the column part is installed, and concrete is poured to the bottom end of the beam. (See Figure 7) After concrete is poured to the bottom end of the beam, reinforcement is placed at the beam joint and slab reinforcement, and concrete is poured. (See FIG. 8) In the figure, h is a beam and i is a slab.
【０００３】図１０乃至図１３は従来のプレキヤスト柱
の施工工程を示し、柱主筋ａ及び芯鉄筋ｂにおける下端
部にスリーブジヨイントｊを有する柱プレキヤスト柱ｋ
を所定の位置に設置し、スリーブジヨイント部に下層部
の鉄筋ｃを挿入して、グラウトモルタルを注入し、プレ
キヤスト柱ｋの主筋ａと下層部の鉄筋ｃとを接合し、前
記の場合と同様に梁との接合部及びスラブ筋の配筋とコ
ンクリートの打設を行なう。FIGS. 10 to 13 show the construction process of a conventional precast column.
is installed in a predetermined position, the lower reinforcing bar c is inserted into the sleeve joint, grout mortar is injected, and the main reinforcing bar a of the precast column k and the lower reinforcing bar c are joined. Similarly, the joints with the beams and slab reinforcement are placed and concrete is placed.
【０００４】0004
【発明が解決しようとする課題】しかしながら前記図６
乃至図９に示す現場配筋の場合、高層ＲＣ建物では従来
のＲＣ建物にくらべて太径の鉄筋が使用され、フープ筋
が密に配筋されるので、鉄筋の配筋、組立に時間を要し
、また鉄筋が密に配筋されるため、コンクリートの打設
が困難になる。[Problem to be solved by the invention] However, the above-mentioned FIG.
In the case of on-site reinforcement shown in Figures 9 to 9, high-rise RC buildings use reinforcing bars with a larger diameter than conventional RC buildings, and the hoop reinforcement is densely arranged, so it takes less time to arrange and assemble the reinforcing bars. Also, because the reinforcing bars are densely arranged, concrete placement becomes difficult.
【０００５】また図１０乃至図１３に示すプレキヤスト
柱の場合、主筋の内側に芯鉄筋が配置されるため、芯鉄
筋柱脚部のスリーブに対するグラウト注入が困難であり
、またその注入状況の確認が困難である。本発明は前記
従来技術の有する問題点に鑑みて提案されたもので、そ
の目的とする処は、施工性が向上され、省力化されると
ともに、構造的に信頼性の高い芯鉄筋を有する高層建物
における下層部のＲＣ柱の構築方法を提供する点にある
。Furthermore, in the case of the precast columns shown in FIGS. 10 to 13, since the core reinforcing bars are placed inside the main reinforcement, it is difficult to inject grout into the sleeves of the core reinforcing bar column legs, and it is difficult to confirm the grouting status. Have difficulty. The present invention has been proposed in view of the problems of the prior art, and aims to improve construction efficiency, save labor, and provide a high-rise building with core reinforcing bars that are structurally highly reliable. The object of the present invention is to provide a method for constructing RC columns in the lower part of a building.
【０００６】[0006]
【課題を解決するための手段】前記の目的を達成するた
め、本発明に係る芯鉄筋を有する部分プレキヤスト柱工
法によれば、高層鉄筋コンクリート構造の下層階におけ
る芯鉄筋を有する鉄筋コンクリート柱の構築方法におい
て、柱脚、端部にスリーブジヨイントが装着された芯鉄
筋を内蔵したプレキヤスト鉄筋コンクリート柱材を所定
位置に建込み、前記スリーブジヨイントを介して前記芯
鉄筋を下階部芯鉄筋と接合したのち、梁下端部まで柱コ
ンクリートを打設するものである。[Means for Solving the Problems] In order to achieve the above object, according to the partial precast column construction method with core reinforcement according to the present invention, a method for constructing a reinforced concrete column with core reinforcement on the lower floor of a high-rise reinforced concrete structure is provided. After erecting a precast reinforced concrete column containing a core reinforcing bar with a sleeve joint attached to the column base and end in a predetermined position, and connecting the core reinforcing bar to the lower floor core reinforcing bar via the sleeve joint, , column concrete is poured up to the bottom end of the beam.
【０００７】[0007]
【作用】本発明によれば前記したように、柱脚端部にス
リーブジヨイントが装着された芯鉄筋を内蔵したプレキ
ヤストＲＣ柱材を現場に搬入し、所定の位置に配置して
前記スリーブジヨイントを介して下層部の鉄筋と接合す
ることによって、現場における鉄筋工事が減少し、また
現場におけるコンクリート打設量が節減され施工性が向
上する。[Operation] According to the present invention, as described above, a precast RC column material containing a built-in core reinforcing bar with a sleeve joint attached to the end of the column base is delivered to the site, placed at a predetermined position, and then the sleeve joint By connecting to the reinforcing bars in the lower layer through the ints, reinforcing steel work on site is reduced, and the amount of concrete placed on site is also reduced, improving workability.
【０００８】また芯鉄筋部分と現場打設部分を異種類、
及び異種強度のコンクリートを使い分けることができ、
圧縮靭性に優れた柱部材を構成しうるものである。[0008] Also, the core reinforcing bar part and the on-site cast part are of different types.
and can use concrete of different strengths,
It is possible to construct a column member with excellent compressive toughness.
【０００９】[0009]
【実施例】ＡはプレキヤストＲＣ柱材で、柱脚端部にス
リーブジヨイント１が装着された芯鉄筋２及び芯フープ
筋３が内蔵されている。而して前記プレキヤストＲＣ柱
材Ａを図１に示す如く所定位置に設置して、スリーブジ
ヨイント１に下層部芯鉄筋４を挿入し、グラウトモルタ
ルを注入して同芯鉄筋４と前記柱材Ａの芯鉄筋２とを接
合する。[Embodiment] A is a precast RC column material, and a core reinforcing bar 2 and a core hoop bar 3 with a sleeve joint 1 attached to the end of the column base are built-in. Then, the precast RC column material A is installed in a predetermined position as shown in FIG. Join core reinforcing bar 2 of A.
【００１０】次いで先組鉄筋５を所定位置に設置し、（
図２参照）先組鉄筋５と下層部の主筋６と溶接接合し（
図３参照）梁下端まで型枠７を組立て、梁下端までコン
クリート８を打設し、しかるのち前記従来工法と同様に
梁、柱梁接合部の施工を行なう。（図４参照）図中９は
フープ筋、１０は梁、１１はスラブである。Next, the pre-assembled reinforcing bars 5 are installed at predetermined positions, and (
(See Figure 2) The pre-assembled reinforcing bars 5 and the main reinforcing bars 6 in the lower layer are welded together (
(See FIG. 3) The formwork 7 is assembled up to the lower end of the beam, concrete 8 is poured up to the lower end of the beam, and then the beam-column-beam joint is constructed in the same manner as in the conventional construction method. (See FIG. 4) In the figure, 9 is a hoop reinforcement, 10 is a beam, and 11 is a slab.
【００１１】[0011]
【発明の効果】本発明によれば前記したように、柱脚端
部にスリーブジヨイントが装着された芯鉄筋を内蔵した
プレキヤストＲＣ柱材を所定位置に建込み、前記スリー
ブジヨイントを介して前記芯鉄筋を下層階の芯鉄筋と接
合したのち梁下端まで柱コンクリートを打設するように
したので、現場における鉄筋工事が短縮され現場打設コ
ンクリート量が減少し、施工性が向上する。[Effects of the Invention] According to the present invention, as described above, a precast RC column containing a core reinforcing bar with a sleeve joint attached to the end of the column base is erected at a predetermined position, and After the core reinforcing bars are connected to the core reinforcing bars on the lower floor, column concrete is placed up to the bottom end of the beam, so on-site reinforcing work is shortened, the amount of concrete poured on-site is reduced, and workability is improved.
【００１２】また芯鉄筋部分と現場打設部分とを異種類
及び異種強度のコンクリートを使い分けることによって
、圧縮靭性に優れた柱部材を構築できる。更にプレキヤ
ストＲＣ柱材は工場生産のため、コンクリート強度の管
理が容易で、柱脚スリーブジヨイント部のグラウトモル
タル注入状況が明確になる。Furthermore, by using concrete of different types and strengths for the core reinforcing bar portion and the cast-on-site portion, it is possible to construct a column member with excellent compressive toughness. Furthermore, since precast RC column materials are manufactured in a factory, it is easy to control the concrete strength, and the grout mortar injection situation at the column base sleeve joint is clear.
【図１】本発明に係る芯鉄筋を有する部分プレキヤスト
柱工法の一実施例の第１工程を示す縦断面図である。FIG. 1 is a longitudinal cross-sectional view showing the first step of an embodiment of the partially precast column construction method with core reinforcing bars according to the present invention.
【図２】本発明の第２工程を示す縦断面図である。FIG. 2 is a longitudinal sectional view showing the second step of the present invention.
【図３】本発明の第３工程を示す縦断面図である。FIG. 3 is a vertical cross-sectional view showing the third step of the present invention.
【図４】本発明の第４工程を示す縦断面図である。FIG. 4 is a longitudinal sectional view showing the fourth step of the present invention.
【図５】図３の横断平面図である。FIG. 5 is a cross-sectional plan view of FIG. 3;
【図６】従来工法の一例の実施状況を示す縦断面図であ
る。FIG. 6 is a longitudinal cross-sectional view showing an example of a conventional construction method.
【図７】従来工法の他の例の実施状況を示す縦断面図で
ある。FIG. 7 is a longitudinal sectional view showing the implementation status of another example of the conventional construction method.
【図８】従来工法によって柱部の配筋が完了した状態を
示す縦断面図である。FIG. 8 is a longitudinal cross-sectional view showing a state in which reinforcing of a column part has been completed using a conventional construction method.
【図９】図８の横断平面図である。FIG. 9 is a cross-sectional plan view of FIG. 8;
【図１０】従来工法の他の例の第１の工程を示す縦断面
図である。FIG. 10 is a longitudinal sectional view showing the first step of another example of the conventional construction method.
【図１１】前記従来工法の第２の工程を示す縦断面図で
ある。FIG. 11 is a longitudinal sectional view showing the second step of the conventional construction method.
【図１２】前記従来工法の第３の工程を示す縦断面図で
ある。FIG. 12 is a longitudinal sectional view showing the third step of the conventional construction method.
【図１３】図１２の横断平面図である。FIG. 13 is a cross-sectional plan view of FIG. 12;
Ａ プレキヤストＲＣ柱材 １ スリーブジヨイント ２ 芯鉄筋 ４ 下層部芯鉄筋 ８ コンクリート A Precast RC pillar material 1 Sleeve joint 2 Core reinforcing bar 4 Lower core reinforcing bar 8 Concrete
Claims (1)
おける芯鉄筋を有する鉄筋コンクリート柱の構築方法に
おいて、柱脚、端部にスリーブジヨイントが装着された
芯鉄筋を内蔵したプレキヤスト鉄筋コンクリート柱材を
所定位置に建込み、前記スリーブジヨイントを介して前
記芯鉄筋を下階部芯鉄筋と接合したのち、梁下端部まで
柱コンクリートを打設することを特徴とする芯鉄筋を有
する部分プレキヤスト柱工法。Claim 1. A method for constructing a reinforced concrete column having a core reinforcing bar on the lower floor of a high-rise reinforced concrete structure, in which a precast reinforced concrete column material having a built-in core reinforcing bar with a sleeve joint attached to the column foot and end is constructed in a predetermined position. A partial precast column construction method with core reinforcing bars, characterized in that after the core reinforcing bars are joined to the lower floor core reinforcing bars via the sleeve joints, column concrete is poured up to the lower end of the beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP594491A JPH04237732A (en) | 1991-01-22 | 1991-01-22 | Constructing method for partial precast pillar with core reinforcement bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP594491A JPH04237732A (en) | 1991-01-22 | 1991-01-22 | Constructing method for partial precast pillar with core reinforcement bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04237732A true JPH04237732A (en) | 1992-08-26 |
Family
ID=11625014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP594491A Pending JPH04237732A (en) | 1991-01-22 | 1991-01-22 | Constructing method for partial precast pillar with core reinforcement bar |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04237732A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101914976A (en) * | 2010-07-30 | 2010-12-15 | 广州市设计院 | Distributed steel bar concrete column and manufacturing method thereof |
| JP2012180671A (en) * | 2011-03-01 | 2012-09-20 | Toda Constr Co Ltd | Aseismatic reinforcing structure of column or leg |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5312113A (en) * | 1976-07-19 | 1978-02-03 | Nippon Telegraph & Telephone | Method of construction of rahmen structure |
| JPS6311499A (en) * | 1986-07-01 | 1988-01-18 | 日本飛行機株式会社 | Altitude controller for body to be towed |
-
1991
- 1991-01-22 JP JP594491A patent/JPH04237732A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5312113A (en) * | 1976-07-19 | 1978-02-03 | Nippon Telegraph & Telephone | Method of construction of rahmen structure |
| JPS6311499A (en) * | 1986-07-01 | 1988-01-18 | 日本飛行機株式会社 | Altitude controller for body to be towed |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101914976A (en) * | 2010-07-30 | 2010-12-15 | 广州市设计院 | Distributed steel bar concrete column and manufacturing method thereof |
| JP2012180671A (en) * | 2011-03-01 | 2012-09-20 | Toda Constr Co Ltd | Aseismatic reinforcing structure of column or leg |
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