JPH07197598A - Standard quantity bar arranged thin thickness precast concrete beam and construction work method for reinforced concrete beam using the beam - Google Patents
Standard quantity bar arranged thin thickness precast concrete beam and construction work method for reinforced concrete beam using the beamInfo
- Publication number
- JPH07197598A JPH07197598A JP33674893A JP33674893A JPH07197598A JP H07197598 A JPH07197598 A JP H07197598A JP 33674893 A JP33674893 A JP 33674893A JP 33674893 A JP33674893 A JP 33674893A JP H07197598 A JPH07197598 A JP H07197598A
- Authority
- JP
- Japan
- Prior art keywords
- thin
- bar arrangement
- groove
- concrete beam
- reinforcements
- 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.)
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Links
Landscapes
- Rod-Shaped Construction Members (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はプレキャスト鉄筋コンク
リート工法における薄肉のプレキャストコンクリート梁
（以下ＰＣ梁という）及び同ＰＣ梁と後打ちコンクリー
トとが一体化された鉄筋コンクリート梁の施工法に係る
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of constructing a thin precast concrete beam (hereinafter referred to as a PC beam) in a precast reinforced concrete construction method and a reinforced concrete beam in which the PC beam and post-cast concrete are integrated.
【０００２】[0002]
【従来の技術】図９は従来の構造体としてのＰＣ梁部材
ａを示し、構造設計確認後、設計通りの梁主筋ｂ及び肋
筋ｃを事前に配置し、部材の製造を行う。図１０は従来
の非構造体としてのＰＣ板を示し、溝型断面のＰＣ部材
ｄにワイヤメッシュｅを埋設し、型枠として利用し溝型
部にコンクリートを打設し、脱型することなくそのまま
残す。2. Description of the Related Art FIG. 9 shows a PC beam member a as a conventional structure. After confirmation of the structural design, beam main bars b and ribs c as designed are arranged in advance to manufacture the member. FIG. 10 shows a conventional PC plate as a non-structured body, in which a wire mesh e is embedded in a PC member d having a groove-shaped cross section and used as a formwork to pour concrete into the groove-shaped portion without demolding. Leave as it is.
【０００３】[0003]
【発明が解決しようとする課題】前記ＰＣ梁部材を構造
体として利用する場合、梁の配筋に対応して部材の製作
種が増加し、生産効率が低下する。非構造体としてのＰ
Ｃ板は、梁型枠として利用できるが、コンクリート打設
後、脱型することなく、そのまま残すので梁断面が大き
くなり、不経済である。When the PC beam member is used as a structure, the number of types of members that can be manufactured increases in accordance with the reinforcement of the beam, and the production efficiency decreases. P as a non-structure
The C plate can be used as a beam form, but it is uneconomical because the beam cross section becomes large because it is left as it is without being removed from the mold after concrete placement.
【０００４】またＰＣ板と後打ちコンクリートの一体性
を確保する必要があり、更に設備工事に使用する配管に
よって部材の種類が増大し、更にまた構造設計、設備設
計終了後でないと部材製作に着手できない。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作業所における配筋が単純化され、
省力化が図られ、ＰＣ部材と後打ちコンクリートの一体
性が図られ、設備のスリーブの配管に対応でき、型枠支
保工が省略される標準量配筋化された薄肉プレキャスト
コンクリート梁、及び同梁を使用した鉄筋コンクリート
梁の施工法を提供する点にある。In addition, it is necessary to secure the integrity of the PC board and the post-cast concrete, and the types of members increase due to the piping used for equipment work. Furthermore, the production of the members will start only after the completion of the structural design and equipment design. Can not. The present invention has been proposed in view of the above problems of the prior art,
The purpose of the work is to simplify the bar arrangement at the work place,
Labor saving is achieved, the PC member and post-cast concrete are integrated, and it can be used for equipment sleeve piping. The point is to provide a construction method for reinforced concrete beams using beams.
【０００５】[0005]
【課題を解決するための手段】前記の目的を達成するた
めに、本発明に係る薄肉ＰＣ梁は、最終設計の配筋とは
別に決定された標準配筋量の鉄筋が内蔵された溝型断面
のプレキャストコンクリート部材における相対する一双
の垂直部片の対向面に、円形状の凹窩を設けて構成され
ている。In order to achieve the above-mentioned object, the thin-walled PC beam according to the present invention is a groove type having a built-in standard reinforcing bar amount determined separately from the final design reinforcing bar. In the precast concrete member having the cross section, circular concave cavities are provided on the facing surfaces of the pair of vertical parts facing each other.
【０００６】請求項２の発明は、前記ＰＣ梁の溝部に最
終設計の鉄筋量に対する不足量の梁主筋及び肋筋を配筋
したのちコンクリートを打設して所要の鉄筋量を有する
鉄筋コンクリート梁を構成するものである。請求項３の
発明は、前記薄肉ＰＣ梁における相対する一双の垂直部
片に設けた各凹窩における薄肉の底部片を打ち抜いて開
口部を設け、相対する開口部にスリーブを貫通し、同開
口部の外周に補強筋を配筋するものである。According to a second aspect of the present invention, a reinforced concrete beam having a required amount of reinforcing bars is placed in the groove portion of the PC beam by arranging insufficient beam main bars and ribs with respect to the final design of reinforcing bars and then placing concrete. It is what constitutes. According to a third aspect of the present invention, the thin bottom piece in each recess provided in the pair of vertical vertical pieces facing each other in the thin PC beam is punched out to provide an opening, and the sleeve is pierced through the opposite openings. Reinforcing bars are arranged on the outer circumference of the portion.
【０００７】[0007]
【作用】本発明によれば前記したように、構造体として
の溝型断面の薄肉ＰＣ板を製作し、部材断面毎に最終設
計の配筋とは別に各々の標準配筋量を決定して予め配筋
しておき、作業所において設計図との不足分の鉄筋は後
施工によって梁主筋及び肋筋を溝型部内に落とし込み、
同部内にコンクリートを打設し、前記ＰＣ梁を型枠とし
て鉄筋コンクリート梁を構成するものであって、梁部材
の製作を梁断面寸法毎の対応のみで解決し、施工に際し
て型枠支保工を省略しうるものである。According to the present invention, as described above, a thin-walled PC plate having a groove-shaped cross section as a structure is manufactured, and each standard bar arrangement amount is determined separately from the final design bar arrangement for each member cross section. Arranged in advance, and at the work place, for the shortage of reinforcing bars from the blueprint, drop the beam main bar and the ribs into the groove part by post-construction,
Concrete is placed in the same part, and a reinforced concrete beam is constructed by using the PC beam as a formwork. The production of beam members is solved only by each beam cross-sectional dimension, and formwork support work is omitted during construction. It is possible.
【０００８】而して前記溝型断面のＰＣ梁における相対
する一双の垂直部片の対向面に設けた円形状の凹窩がシ
ャーキーの機能を果たし、打設コンクリートと前記ＰＣ
梁とが一体化される。また作業所におけるＰＣ梁の接手
部の重ね継手が可能となり、配筋の省力化が図られる。Thus, the circular recesses provided on the facing surfaces of the pair of vertical vertical pieces facing each other in the PC beam having the groove-shaped cross section function as a sharkey, and the concrete and PC are poured.
The beam is integrated. In addition, a lap joint of the joint portion of the PC beam at the work place becomes possible, and labor saving of the bar arrangement can be achieved.
【０００９】更にまたスリーブを施工する場合、前記Ｐ
Ｃ梁の垂直部片の対向面に設けた円形凹窩における薄肉
の底部片を打ち抜いて開口部を設け、同開口部を利用し
てスリーブを配設するとともに、同開口部の外周部に補
強筋を配筋して開口部の補強をすることによって、スリ
ーブの配設に対応しうるものである。Further, when the sleeve is constructed, the P
A thin bottom piece in a circular recess provided on the facing surface of the vertical portion of the C-beam is punched out to provide an opening, and a sleeve is provided using the opening, and the outer periphery of the opening is reinforced. By arranging the muscles to reinforce the opening, it is possible to deal with the arrangement of the sleeve.
【００１０】[0010]
【実施例】以下本発明を図示の実施例について説明す
る。図１及び図２は薄肉ＰＣ梁を示し、水平底部片１
と、同水平底部片１の両端に垂設された一双の垂直部片
２とによって溝型部材が構成され、部材断面毎に最終設
計の配筋とは別に夫々の部材の標準配筋量を決定し、事
前に標準量の梁主筋３及び標準量の梁肋筋４を配筋して
薄肉ＰＣ梁の製作を行う。The present invention will be described below with reference to the illustrated embodiments. 1 and 2 show a thin-walled PC beam, a horizontal bottom piece 1
And a pair of vertical parts 2 vertically provided at both ends of the horizontal bottom part 1 constitute a groove type member, and the standard bar arrangement amount of each member is provided for each member cross-section separately from the final designed bar arrangement. A thin PC beam is manufactured by deciding and arranging a standard amount of beam main bars 3 and a standard amount of beam ribs 4 in advance.
【００１１】なお相対する垂直部片２の対向面には一定
のピッチで一定の大きさの円形状の凹窩５が設けられ
る。而して作業所において、前記ＰＣ梁の溝部内に、最
終設計に対する不足量の梁主筋３ａ及び同じく不足量の
梁肋筋４ａを後施工によって落とし込んだのちコンクリ
ートを打設し、同後打ちコンクリートと前記ＰＣ梁とを
一体化する。この際、前記凹窩５がシャーキーの機能を
果たすものである。Further, circular concavities 5 having a constant size and a constant pitch are provided on the opposing surfaces of the opposing vertical pieces 2. Then, in the work place, concrete is poured into the groove portion of the PC beam after the post-construction of the beam main bar 3a and the beam rib 4a of the same amount which are insufficient for the final design are dropped by the post-construction, and the post-cast concrete. And the PC beam are integrated. At this time, the recess 5 functions as a sharkey.
【００１２】図中６は柱、６ａは柱主筋、６ｂは柱帯筋
である。図示の実施例は前記したように構成されている
ので、部材の製作が梁断面寸法毎の対応のみで解決で
き、前記ＰＣ梁を構造体の一部として利用することがで
き、解体費、処分費を含む型枠費の低減が図られ、設計
の中間段階で部材製作が可能となり、また作業の平準化
が図られ、事前のストックが可能となる。In the figure, 6 is a column, 6a is a column main bar, and 6b is a column bar. Since the illustrated embodiment is configured as described above, it is possible to solve the problem that the manufacturing of the members can be done only for each beam cross-sectional dimension, and the PC beam can be used as a part of the structure, dismantling cost and disposal. Forming costs including costs can be reduced, parts can be manufactured in the middle stage of design, work can be leveled, and stocks can be made in advance.
【００１３】図３は設備用梁としてのスリーブ貫通部分
の対応を示し、前記ＰＣ梁の垂直部片２に設けた凹窩５
のうち、スリーブ７が配置される部分において、薄肉の
底部片を取り去り、かくして生じた相対する垂直部片２
の各開口部８間にスリーブ７を貫挿するとともに、各開
口部８の周囲に開口部補強筋９を配筋する。図７は前記
薄肉ＰＣ梁の製造方法を示し、定盤１０上に、相対する
側枠１１間に円形状の凹窩５を上面に有する垂直部片構
成用の板状片１２を打設し、同板状片１２の一次製作
後、同板状片１２の両端部分を建て起こし、相対する板
状片１２、１２間に水平部片構成用の板状片１３を２次
打設する。図中、Ｈは梁成の調整部分、Ｂは梁幅の調整
部分である。FIG. 3 shows the correspondence of the sleeve penetrating portion as a beam for equipment, which is a recess 5 provided in the vertical portion 2 of the PC beam.
At the portion of the sleeve 7 where the sleeve 7 is located, the thin bottom piece is removed and the resulting vertical piece 2
The sleeve 7 is inserted between the openings 8 and the opening reinforcing bars 9 are arranged around the openings 8. FIG. 7 shows a method of manufacturing the thin-walled PC beam, in which a plate-shaped piece 12 for forming a vertical portion having a circular recess 5 on the upper surface is placed on a surface plate 10 between opposing side frames 11. After the primary production of the plate-shaped piece 12, both end portions of the plate-shaped piece 12 are erected and the plate-shaped piece 13 for forming the horizontal part piece is secondarily placed between the opposing plate-shaped pieces 12, 12. In the figure, H is a beam adjustment part, and B is a beam width adjustment part.
【００１４】この際、梁部材としての断面が統一されて
いるので、製造法の自由度が増し、（イ）単体で製作す
る方法、（ロ）長尺の枠に仕切を入れて製作する方法、
（ハ）長尺の製品として一次製作し、所定の寸法に切り
揃える方法等が採用され、図８は長尺の部材を製作し、
仕切、製品カット等の方法で梁長Ｌ1 、Ｌ2 、Ｌ3 の調
整を行うものである。At this time, since the cross section of the beam member is unified, the degree of freedom of the manufacturing method is increased, and (a) a single method, and (b) a long frame with a partition. ,
(C) A method of making a long product as a primary product and trimming to a predetermined size is adopted.
The beam lengths L 1 , L 2 and L 3 are adjusted by methods such as partitioning and product cutting.
【００１５】[0015]
【発明の効果】本発明に係る薄肉ＰＣ梁は溝型断面のＰ
Ｃ梁部材に、最終設計の配筋とは別に決定された標準配
筋量の鉄筋が内蔵されていて、部材としての断面が統一
されているので、部材の製作が簡単で製作法の自由度が
増し、作業所において前記溝型断面のＰＣ梁に最終設計
に対し不足量の鉄筋を補足配筋して、前記コンクリート
を打設することによって、前記ＰＣ梁部材に型枠を兼用
せしめて鉄筋コンクリート梁を構成するようにしたの
で、作業所における配筋が単純化され省力化が図られる
ものであり、また部材の軽量化が図られる。The thin PC beam according to the present invention has a groove-shaped cross section of P
The C-beam member has a built-in standard reinforcing bar amount that is determined separately from the final design reinforcing bar, and the cross-section as a member is unified, so the manufacturing of the member is easy and the degree of freedom of the manufacturing method is high. In the work place, the PC beam with the grooved section is supplemented with a shortage of reinforcing bars for the final design, and the concrete is placed, so that the PC beam member also serves as a formwork, and the reinforced concrete is reinforced. Since the beam is configured, the bar arrangement in the work place is simplified and labor is saved, and the weight of the member is reduced.
【００１６】更に前記垂直部材に配設された円形の凹窩
はシャーキーとして働き、前記ＰＣ梁と同ＰＣ梁に対す
る打設コンクリートの一体化が図られるものである。請
求項２の発明は前記したように、標準配筋量の鉄筋が内
蔵された溝型断面の薄肉ＰＣ梁の溝部に不足量の梁主筋
及び肋筋を配筋してコンクリートを打設するようにした
ので、作業所における配筋が単純化され省力化が図ら
れ、型枠支保工が省略されるのみならず、作業所におけ
る接合部の重ね継手が可能となり、配筋の省力化とな
る。Further, the circular recesses provided on the vertical member function as a squeeze, and the PC beam and the cast concrete are integrated with the PC beam. According to the invention of claim 2, as described above, the concrete of the thin-walled PC beam having the groove-shaped cross section in which the reinforcing bar of the standard bar arrangement amount is built is laid with the insufficient amount of the beam main bar and the rib bar. As a result, the bar arrangement in the work place is simplified and labor saving is achieved, not only the formwork support work is omitted, but also the lap joint of the joint part in the work place is possible, and labor saving of the bar arrangement is achieved. .
【００１７】請求項３の発明は前記溝型断面の薄肉ＰＣ
梁の垂直部片に設けた凹窩における底部片を打ち抜いて
開口部を設け、かくして形成された相対する垂直部片の
開口部間にスリーブを貫通するとともに、同開口部の外
周に補強筋を配筋することによって設備のスリーブの配
設に対する対応が可能となり、スリーブについても標準
化される。A third aspect of the present invention is a thin-walled PC having the groove-shaped cross section.
The bottom piece in the recess formed in the vertical piece of the beam is punched out to provide an opening, and the sleeve is pierced between the openings of the opposing vertical pieces thus formed, and a reinforcing bar is provided on the outer periphery of the opening. By arranging the reinforcements, it is possible to deal with the arrangement of sleeves in equipment, and the sleeves will also be standardized.
【図１】本発明に係る薄肉ＰＣ梁の一実施例を示す縦断
側面図である。FIG. 1 is a vertical sectional side view showing an embodiment of a thin PC beam according to the present invention.
【図２】図１の縦断面図である。FIG. 2 is a vertical sectional view of FIG.
【図３】前記薄肉ＰＣ梁の他の実施例を示す縦断側面図
である。FIG. 3 is a vertical sectional side view showing another embodiment of the thin PC beam.
【図４】図３の矢視イ−イ図である。4 is a view taken along the line EE in FIG.
【図５】図３の矢視ロ−ロ図である。FIG. 5 is a perspective view taken along the arrow in FIG.
【図６】図３の矢視ハ−ハ図である。FIG. 6 is a view from the arrow of FIG.
【図７】本発明に係る薄肉ＰＣ梁の製造方法の一例を示
す説明図である。FIG. 7 is an explanatory diagram showing an example of a method for manufacturing a thin PC beam according to the present invention.
【図８】本発明に係る薄肉ＰＣ梁の製造方法の他の例を
示す説明図である。FIG. 8 is an explanatory view showing another example of the method for manufacturing a thin PC beam according to the present invention.
【図９】従来の構造体としてのＰＣ梁部材の縦断面図で
ある。FIG. 9 is a vertical cross-sectional view of a PC beam member as a conventional structure.
【図１０】従来の非構造体としてのＰＣ板を示す縦断面
図である。FIG. 10 is a vertical cross-sectional view showing a PC board as a conventional non-structure.
１ 水平底部片 ２ 垂直部片 ３ 標準量の梁主筋 ３ａ 不足量の梁主筋 ４ 標準量の梁肋筋 ４ａ 不足量の梁肋筋 ５ 凹窩 ６ 柱 ６ａ 柱主筋 ６ｂ 柱帯筋 ７ スリーブ ８ 開口部 ９ 開口部補強筋 １０ 定盤 １１ 側枠 １２ 垂直部片構成用の板状片 １３ 水平部片構成用の板状片 1 Horizontal bottom piece 2 Vertical piece 3 Standard amount of beam main reinforcement 3a Insufficient amount of beam main reinforcement 4 Standard amount of beam ribs 4a Insufficient amount of beam ribs 5 Cavities 6 Columns 6a Column main reinforcement 6b Column girder 7 Sleeve 8 Opening Part 9 Opening Reinforcing Bar 10 Surface Plate 11 Side Frame 12 Plate-shaped Piece for Vertical Part Piece 13 Plate-shaped Piece for Horizontal Part Piece
Claims (3)
配筋量の鉄筋が内蔵された溝型断面のプレキャストコン
クリート部材における相対する一双の垂直部片の対向面
に、円形状の凹窩を設けてなることを特徴とする標準量
配筋化された薄肉プレキャストコンクリート梁。1. A circular recess is formed on the facing surface of a pair of vertical parts facing each other in a precast concrete member having a groove-shaped cross section in which a reinforcing bar having a standard reinforcing bar determined separately from the final designed bar is incorporated. A thin precast concrete beam with a standard amount of reinforcement, characterized by being provided with pits.
配筋量の鉄筋が内蔵され、且つ相対する一双の垂直部片
の対向面に、円形状の凹窩を設けてなる溝型断面の薄肉
プレキャストコンクリート部材の溝部に、不足量の梁主
筋及び肋筋を配筋したのちコンクリートを打設すること
を特徴とする標準量配筋化された薄肉プレキャストコン
クリート梁を使用した鉄筋コンクリート梁の施工法。2. A groove type having a built-in reinforcing bar of a standard reinforcing bar determined separately from the bar of the final design, and having circular recesses on the facing surfaces of a pair of vertical parts facing each other. In the groove of the thin-walled precast concrete member of the cross section, after arranging the insufficient amount of beam main bars and ribs, concrete is placed and then the concrete is placed. Construction method.
おける相対する一双の垂直部片に設けた各凹窩における
薄肉の底部片を打ち抜いて開口部を設け、相対する同開
口部間にスリーブを貫通するとともに、同開口部の外周
に補強筋を配筋する請求項２記載の鉄筋コンクリート梁
の施工法。3. An opening is formed by punching out a thin bottom piece in each recess provided in a pair of opposing vertical parts of the thin precast concrete beam, and a sleeve is penetrated between the opposite openings. The method for constructing a reinforced concrete beam according to claim 2, wherein reinforcing bars are arranged around the outer periphery of the opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33674893A JP3351886B2 (en) | 1993-12-28 | 1993-12-28 | Thin-walled precast concrete beam and method of manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33674893A JP3351886B2 (en) | 1993-12-28 | 1993-12-28 | Thin-walled precast concrete beam and method of manufacturing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07197598A true JPH07197598A (en) | 1995-08-01 |
| JP3351886B2 JP3351886B2 (en) | 2002-12-03 |
Family
ID=18302359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33674893A Expired - Fee Related JP3351886B2 (en) | 1993-12-28 | 1993-12-28 | Thin-walled precast concrete beam and method of manufacturing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3351886B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106193445A (en) * | 2016-08-31 | 2016-12-07 | 济南市人防建筑设计研究院有限责任公司 | A kind of prestressing force groove type plate that can be used for 5 grades of civil air defense constructions and installations |
| JP2021059896A (en) * | 2019-10-07 | 2021-04-15 | 株式会社竹中工務店 | Precast member, and beam |
-
1993
- 1993-12-28 JP JP33674893A patent/JP3351886B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106193445A (en) * | 2016-08-31 | 2016-12-07 | 济南市人防建筑设计研究院有限责任公司 | A kind of prestressing force groove type plate that can be used for 5 grades of civil air defense constructions and installations |
| JP2021059896A (en) * | 2019-10-07 | 2021-04-15 | 株式会社竹中工務店 | Precast member, and beam |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3351886B2 (en) | 2002-12-03 |
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