JPS63130838A - Hollow pillar made of precast concrete - Google Patents
Hollow pillar made of precast concreteInfo
- Publication number
- JPS63130838A JPS63130838A JP27822186A JP27822186A JPS63130838A JP S63130838 A JPS63130838 A JP S63130838A JP 27822186 A JP27822186 A JP 27822186A JP 27822186 A JP27822186 A JP 27822186A JP S63130838 A JPS63130838 A JP S63130838A
- Authority
- JP
- Japan
- Prior art keywords
- column
- precast concrete
- reinforcing bars
- concrete
- internal space
- 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
- 239000011178 precast concrete Substances 0.000 title claims description 19
- 230000003014 reinforcing effect Effects 0.000 claims description 33
- 239000004567 concrete Substances 0.000 claims description 22
- 230000002787 reinforcement Effects 0.000 claims description 14
- 238000009415 formwork Methods 0.000 description 15
- 238000010276 construction Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 7
- 210000003205 muscle Anatomy 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
Landscapes
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
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〕
本発明はビルディング等の建築構造物における柱に使用
して好適なプレキャストコンクリート製の中空柱体の構
造に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a structure of a hollow column made of precast concrete suitable for use as a column in an architectural structure such as a building.
鉄筋コンクリート構造物における柱の施工は、現場にお
いて柱の施工箇所に竪方向に主筋を分散して配設すると
共に、この周面にフープ筋を配筋してから、その周りに
型枠を組み、当該型枠内にコンクリートを打設してコン
クリートの硬化後に型枠を耽り外すことによって行われ
ていた。In the construction of columns in reinforced concrete structures, the main reinforcement is distributed vertically at the construction site of the column, and the hoop reinforcement is placed around the circumference, and then a formwork is constructed around it. This was done by pouring concrete into the formwork and removing the formwork after the concrete had hardened.
また、現場における主筋とフープ筋の配筋後にいくつか
に分割されたプレキャストコンクリート製の柱部材を現
場において型枠の代わりに組み立て、当該組み合わせら
れたプレキャストコンクリート製の柱部材内にコンクリ
ートを打ち込んで柱を構築する方法がとられている。In addition, after the main reinforcement and hoop reinforcement are placed on site, precast concrete column members that are divided into several parts are assembled on site in place of the formwork, and concrete is poured into the combined precast concrete column members. The method used is to build pillars.
前記したように、従来は柱の構築にあたって現場におい
て主筋及びフープ筋の配筋が不可欠であり、建造物が高
層化するにしたがい現場作業が煩雑になるという問題点
があった。特に、型枠によるコンクリートの現場打設に
よる方法では型枠組み、取り外しと多くの手間が掛かる
という不具合゛ 点があった。また、いくつかに分割さ
れたプレキャストコンクリート製の柱部材を現場におい
て鉄筋の周りに組み立て、組み立てられた柱部材内にコ
ンクリートを打ち込む工法では、柱部材同志の接合が厄
介なほか、プレキャスト柱部材は型枠材としては有効で
あったとしても、現場打設のコンクリートとの接着性が
悪く、構造的には全く期待できないという問題点があっ
た。As mentioned above, in the past, when constructing columns, it was essential to arrange main reinforcement and hoop reinforcement on site, and as buildings became taller, on-site work became more complicated. In particular, the method of pouring concrete on-site using formwork had the disadvantage that it required a lot of time and effort to install and remove the formwork. In addition, with the method of assembling precast concrete column members that are divided into several parts around reinforcing bars on site and pouring concrete into the assembled column members, it is difficult to join the column members together, and the precast column members are Even if it was effective as a formwork material, it had a problem in that it had poor adhesion to concrete poured on-site and was not structurally promising at all.
本発明の目的は、前記した従来技術の問題点をなくし、
建設現場において柱構築のための主筋及びフープ筋を配
筋する必要がないと共に、型枠の組み立て、取り外しも
なく、しかも充分な強度が得られるようになしたプレキ
ャストコンクリート製中空柱体の構造を提供することに
ある。The purpose of the present invention is to eliminate the problems of the prior art described above,
The precast concrete hollow column structure eliminates the need to arrange main reinforcement and hoop reinforcement for constructing columns at the construction site, and also eliminates the need to assemble and remove formwork, while providing sufficient strength. It is about providing.
Ｃ問題点を解決するための手段〕
問題点を解決するための本発明の構成を詳述すれば、内
部を中空としたプレキャストコンクリート製の柱体であ
って、当該柱体の内部空間に鉄筋が部分的に露出するよ
うにして柱体のコンクリ−［１体内に鉄筋を配筋してな
ることを特徴とするプレキャストコンクリート製中空柱
体であり、柱体の内部空間に突出する鉄筋はフープ筋及
び主筋の両方であってもよいし、あるいはフープ筋また
は主筋のいずれか一方であってもよいし、トラス筋であ
ってもよいものである。また、柱体の横断面形状は方形
、多角形等の角筒状であってもよいし、円筒状であって
もよい。Means for Solving Problem C] To explain in detail the structure of the present invention for solving the problem, it is a column made of precast concrete with a hollow interior, and a reinforcing bar is installed in the internal space of the column. It is a precast concrete hollow column characterized by having reinforcing bars arranged inside the column so that the concrete of the column is partially exposed, and the reinforcing bars protruding into the internal space of the column are hoops. It may be both a muscle and a main muscle, it may be either a hoop muscle or a main muscle, or it may be a truss muscle. Further, the cross-sectional shape of the column may be rectangular or polygonal, or may be cylindrical.
本発明プレキャストコンクリート製中空柱体は、このよ
うに柱体のコンクリート躯体内に配筋された鉄筋が部分
的に柱体の内部空間に突出した構造となっているため、
これを建設現場における柱の施工箇所の床版に突出して
いる鉄筋に緊結した後、柱体内にコンクリートを流し込
むとコンクリートは露出している鉄筋の周囲に食い込み
、鉄筋と固く密着して一体となるので、充分な強度の柱
が構築できるものである。The precast concrete hollow column of the present invention has a structure in which the reinforcing bars arranged inside the concrete frame of the column partially protrude into the internal space of the column.
After this is tied to the reinforcing bars protruding from the floor slab of the column construction site at the construction site, when concrete is poured into the column body, the concrete bites around the exposed reinforcing bars and firmly adheres to the reinforcing bars and becomes one. Therefore, pillars with sufficient strength can be constructed.
以下、本発明の具体的構成を図示の実施例に基づき詳細
に説明する。Hereinafter, a specific configuration of the present invention will be explained in detail based on illustrated embodiments.
第１図は本発明柱体の一実施例を示す正面図、第２図は
第１図のｎ−ｎ線に沿った断面図、第３図は本発明に係
る柱体の製造法の一例を示す概略図、第４図は本発明柱
体を用いた柱の構築方法の一例を示す説明図、第５図は
本発明柱体の他の実施例を示す横断面図であり、図中１
は内部を中空としたプレキャストコンクリート製の柱体
を示す。FIG. 1 is a front view showing one embodiment of the columnar body of the present invention, FIG. 2 is a sectional view taken along the line nn in FIG. 1, and FIG. 3 is an example of the method for manufacturing the columnar body according to the present invention. FIG. 4 is an explanatory diagram showing an example of a method of constructing a column using the column of the present invention, and FIG. 5 is a cross-sectional view showing another embodiment of the column of the present invention. 1
indicates a column made of precast concrete with a hollow interior.
柱体１は、第３図に示すような遠心成型機を用いて製造
することができる。すなわぢ、原動機２によって回転駆
動する回転タイヤ３と、この回転タイヤ３に対向位置す
る回転自在タイヤ４の上面に型枠５を内部に組み込んだ
回転ドラム６を配置し、該回転ドラム６を回転させなが
ら、ドラム６の開放端より型枠５内にコンクリートを投
入すると、コンクリートは遠心力によって型枠５の内壁
にきつく密着し、そのまま硬化して内部中空の柱体ｌが
得られる。The column 1 can be manufactured using a centrifugal molding machine as shown in FIG. In other words, a rotary tire 3 rotatably driven by a prime mover 2 and a rotatable drum 6 with a formwork 5 incorporated therein are disposed on the upper surface of a rotatable tire 4 located opposite to the rotary tire 3. When concrete is poured into the formwork 5 from the open end of the drum 6 while rotating, the concrete tightly adheres to the inner wall of the formwork 5 due to centrifugal force and hardens to form an internally hollow column 1.
第２図において、７は柱体１の内部空間を示す。In FIG. 2, 7 indicates the internal space of the columnar body 1.
本発明は、この柱体１の内部空間７に鉄筋８が部分的に
突出するようにして柱体１のコンクリート１口体内に鉄
筋８を配筋してなるもので、遠心成型機における前記型
枠５内に予じめ組み立てられた鉄筋８をセットしておき
、この状態で回転ドラム６の回転中にコンクリートを型
枠５内に投入すると第２図に示すように外側形状が方形
状で、内部空間７が円形状の中空柱体１が得られ、鉄筋
８は各隅角部がコンクリート躯体内に埋設されると共に
、鉄筋８の各辺部中央部分が柱体１の内部空間７に露出
した構造となる。The present invention is constructed by arranging the reinforcing bars 8 within one concrete mouth of the column 1 so that the reinforcing bars 8 partially protrude into the internal space 7 of the column 1, and the above-mentioned mold in a centrifugal forming machine. Pre-assembled reinforcing bars 8 are set in the frame 5, and when concrete is poured into the form 5 while the rotating drum 6 is rotating in this state, the outer shape becomes a rectangle as shown in Fig. 2. , a hollow column 1 with a circular internal space 7 is obtained, each corner of the reinforcing bars 8 is buried in the concrete frame, and the center portion of each side of the reinforcing bar 8 is embedded in the internal space 7 of the column 1. The structure is exposed.
第２図に示す実施例で、鉄筋８は柱体の長手方向に沿っ
て延びる主筋９と、この主筋９の周りに配筋されるフー
プ筋（配力筋）１０とからなっている。なお、施工の都
合上、主筋９の上端部はコンクリート５１１ｍ体の上面
から上方に突出させておくとよい（第１図）。また、柱
体１の下端部には主筋９に対応する金属製スリーブ１１
を埋設しておくと後述するように施工上便利であるが、
柱体１の下端部下方に主筋９を突出させておいても施工
上問題はない。In the embodiment shown in FIG. 2, the reinforcing bars 8 are composed of a main reinforcing bar 9 extending along the longitudinal direction of the column, and hoop reinforcing bars (distributing bars) 10 arranged around the main reinforcing bar 9. For convenience of construction, it is preferable that the upper end of the main reinforcement 9 protrudes upward from the upper surface of the 511 m concrete body (Fig. 1). In addition, a metal sleeve 11 corresponding to the main reinforcement 9 is provided at the lower end of the column 1.
It is convenient for construction to bury it as described later, but
There is no problem in construction even if the main reinforcement 9 is made to protrude below the lower end of the column 1.
なお、遠心成型機における回転ドラム６内に組み込む型
枠５は交換可能であり、図示の方形状以外にも六角形、
へ角形等の型枠を用いれば、所望の多角形状の柱体ｌが
得られるものである。また、第５図に示すように、円筒
状の柱体１となすことも可能であり、円筒状の柱体１と
する場合には、トラス筋１２を主筋９及びフープ筋ｌＯ
の他に１■体内に配筋し、当該トラス筋１２も部分的に
柱体１の内部空間７内に突出させるようにすることもで
きるものである。Note that the formwork 5 incorporated into the rotating drum 6 of the centrifugal molding machine is replaceable, and in addition to the rectangular shape shown in the figure, it can also be formed into hexagonal,
By using a hexagonal formwork or the like, a desired polygonal column l can be obtained. Furthermore, as shown in FIG. 5, it is also possible to form a cylindrical column 1, and in the case of forming a cylindrical column 1, the truss bar 12 is connected to the main bar 9 and the hoop bar 10.
Alternatively, the truss reinforcements 12 may be arranged inside the body, and the truss reinforcements 12 may also partially protrude into the internal space 7 of the column 1.
このように、柱体１の横断面形状は、方形、多角形等の
角筒状であってもよいし、円筒状であってもよいが、い
ずれの横断面形状であっても、柱体１のコンクリートＩ
Ｎ体内に配筋されている鉄筋８が部分的に柱体１の内部
空間７に突出していることを要するのはいうまでもない
。なお、柱体１の内部空間７に露出する鉄筋８は主筋９
単独であってもよいし、フープ筋単独であってもよく、
また両者共部分的に突出するような構造としてもよいも
のである。また、露出の程度も鉄筋の形状を種々変更す
ることによりその突出度合を適宜調整することができる
ものである。In this way, the cross-sectional shape of the column 1 may be rectangular, polygonal, etc., or cylindrical, but regardless of the cross-sectional shape, the column 1 concrete I
It goes without saying that the reinforcing bars 8 arranged inside the N body must partially protrude into the internal space 7 of the column body 1. Note that the reinforcing bars 8 exposed in the internal space 7 of the column 1 are main bars 9.
It may be alone, or it may be the hoop muscle alone,
Further, both may be structured so that they partially protrude. Moreover, the degree of exposure can be adjusted as appropriate by changing the shape of the reinforcing bars in various ways.
次に、本発明プレキャストコンクリート製中空柱体を用
いた柱の構築例につき説明すれば、先づ第４図（Ａ）に
示すように、建設現場における柱の施工箇所にクレーン
等の昇降手段１３によって柱体１を吊り上げる。なお、
柱の施工箇所の床版１４上には階下の柱に配筋されてい
る主筋２０が複数本突出している。そして、昇降手段１
３によって柱体１を降ろし、柱体ｌの下端部に配設しで
ある金属製スリーブ１１内に床版上の主筋２０を挿着す
る。それから、金属製スリーブｌｌ内にモルタル等の充
填材を注入して、第４図（Ｂ）に示すように、主筋９と
主筋２０をスリーブ１１を介して接続する。次いで、柱
体１の上方からコンクリートを柱体１の内部空間７内に
投入すると、コンクリート１５は第４図（Ｃ）に示すよ
うに、内部空間７内に露出している鉄筋８の周面に密着
して鉄筋８と一体になると共に、階上の床版をなす型枠
１６の上面にもコンクリートを打ち込んで作業を終了す
る。Next, an example of the construction of a column using the precast concrete hollow column of the present invention will be explained. First, as shown in FIG. Lift up column 1 by. In addition,
A plurality of main reinforcing bars 20 arranged in the pillars below protrude above the floor slab 14 at the location where the pillars are to be constructed. And the lifting means 1
3, the column 1 is lowered, and the main reinforcing bars 20 on the floor slab are inserted into the metal sleeve 11 disposed at the lower end of the column 1. Then, a filler such as mortar is injected into the metal sleeve 11, and the main reinforcing bars 9 and 20 are connected via the sleeve 11, as shown in FIG. 4(B). Next, when concrete is poured into the internal space 7 of the column 1 from above, the concrete 15 covers the circumferential surface of the reinforcing bar 8 exposed in the internal space 7, as shown in FIG. 4(C). The work is completed by pouring concrete into the upper surface of the formwork 16 that forms the floor slab on the floor, as well as in close contact with the reinforcing bars 8.
本発明に基づき次のような効果が得られる。 Based on the present invention, the following effects can be obtained.
■ 建設現場において性用の鉄筋を組む必要がなくなる
と共に、型枠の組み付け、取り外し作業が不要となる。■ There is no need to assemble reinforcing bars at the construction site, and there is no need to assemble or remove formwork.
従って、現場作業が軽減され、工期の短縮が可能となる
。Therefore, on-site work is reduced and the construction period can be shortened.
■ 柱体の中空部内に突出している鉄筋と現場打設によ
るコンクリートとが密着し、一体となるので建築構造体
として有効である。■ It is effective as a building structure because the reinforcing bars protruding into the hollow part of the column and the concrete poured on site come into close contact and become one.
■ 柱体表面の素地仕上げが不要であるし、遠心成型の
ときに柱体の表面に化粧タイルを組み込むことも可能と
なる。■ There is no need for base finishing on the surface of the column, and it is also possible to incorporate decorative tiles on the surface of the column during centrifugal molding.
■ 従来の分割されたプレキャストコンクリート製柱部
材と異なり、柱部材同志の繋ぎ面の接合が不要である。■ Unlike conventional divided precast concrete column members, there is no need to join the connecting surfaces of column members.
第１図は本発明柱体の一実施例を示す正面図、第２図は
第１図のｎ−ｎ線に沿った断面図、第３図は本発明に係
る柱体の製造法の一例を示す概略図、第４図は本発明柱
体を用いた柱の構築方法の一例を示す説明図、第５図は
本発明柱体の他の実施例を示す横断面図である。
ｌ：柱 体 ７：内部空間
８：鉄筋 ９：主筋
１０：フープ筋 １１ニスリーブ１２ニドラス筋FIG. 1 is a front view showing one embodiment of the columnar body of the present invention, FIG. 2 is a sectional view taken along the line nn in FIG. 1, and FIG. 3 is an example of the method for manufacturing the columnar body according to the present invention. FIG. 4 is an explanatory diagram showing an example of a method of constructing a column using the column of the present invention, and FIG. 5 is a cross-sectional view showing another embodiment of the column of the present invention. l: Column body 7: Internal space 8: Reinforcing bar 9: Main bar 10: Hoop bar 11 Ni-sleeve 12 Ni-drus bar
Claims (6)
柱体であって、当該柱体の内部空間に鉄筋が部分的に露
出するようにして柱体のコンクリート躯体内に鉄筋を配
筋してなることを特徴とするプレキャストコンクリート
製中空柱体。(1) A column made of precast concrete with a hollow interior, in which reinforcing bars are arranged within the concrete frame of the column so that the reinforcing bars are partially exposed in the internal space of the column. A hollow column made of precast concrete featuring
特許請求の範囲第１項記載のプレキャストコンクリート
製中空柱体。(2) The precast concrete hollow column according to claim 1, wherein the reinforcing bars exposed in the internal space of the column are hoop bars.
請求の範囲第１項又は第２項記載のプレキャストコンク
リート製中空柱体。(3) The precast concrete hollow column according to claim 1 or 2, wherein the reinforcing bars exposed in the internal space of the column are main reinforcements.
特許請求の範囲第１項乃至第３項記載のプレキャストコ
ンクリート製中空柱体。(4) The precast concrete hollow column according to claims 1 to 3, wherein the reinforcing bars exposed in the internal space of the column are truss bars.
第１項乃至第４項記載のプレキャストコンクリート製中
空柱体。(5) The precast concrete hollow column according to any one of claims 1 to 4, wherein the column has a rectangular cross-sectional shape.
第１項乃至第４項記載のプレキャストコンクリート製中
空柱体。(6) A hollow column made of precast concrete according to any one of claims 1 to 4, wherein the column has a cylindrical cross-sectional shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61278221A JPH0657970B2 (en) | 1986-11-21 | 1986-11-21 | Precast concrete hollow pillar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61278221A JPH0657970B2 (en) | 1986-11-21 | 1986-11-21 | Precast concrete hollow pillar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63130838A true JPS63130838A (en) | 1988-06-03 |
| JPH0657970B2 JPH0657970B2 (en) | 1994-08-03 |
Family
ID=17594297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61278221A Expired - Lifetime JPH0657970B2 (en) | 1986-11-21 | 1986-11-21 | Precast concrete hollow pillar |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0657970B2 (en) |
Cited By (4)
| 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 |
| JPH03206242A (en) * | 1989-12-29 | 1991-09-09 | Tokyu Constr Co Ltd | Flat slab construction method |
| JPH05272194A (en) * | 1992-03-26 | 1993-10-19 | Nippon Concrete Ind Co Ltd | Precast product |
| JP2018123679A (en) * | 2018-05-21 | 2018-08-09 | 本清鋼材株式会社 | Pca center pillar |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6124735A (en) * | 1984-07-12 | 1986-02-03 | 清水建設株式会社 | Mold frame for casting concrete |
-
1986
- 1986-11-21 JP JP61278221A patent/JPH0657970B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6124735A (en) * | 1984-07-12 | 1986-02-03 | 清水建設株式会社 | Mold frame for casting concrete |
Cited By (4)
| 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 |
| JPH03206242A (en) * | 1989-12-29 | 1991-09-09 | Tokyu Constr Co Ltd | Flat slab construction method |
| JPH05272194A (en) * | 1992-03-26 | 1993-10-19 | Nippon Concrete Ind Co Ltd | Precast product |
| JP2018123679A (en) * | 2018-05-21 | 2018-08-09 | 本清鋼材株式会社 | Pca center pillar |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0657970B2 (en) | 1994-08-03 |
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