JPH0654045B2 - Manufacturing method of prestressed PC board with built-in assembly bar with deformation stripping - Google Patents
Manufacturing method of prestressed PC board with built-in assembly bar with deformation strippingInfo
- Publication number
- JPH0654045B2 JPH0654045B2 JP59157672A JP15767284A JPH0654045B2 JP H0654045 B2 JPH0654045 B2 JP H0654045B2 JP 59157672 A JP59157672 A JP 59157672A JP 15767284 A JP15767284 A JP 15767284A JP H0654045 B2 JPH0654045 B2 JP H0654045B2
- Authority
- JP
- Japan
- Prior art keywords
- board
- assembly bar
- built
- prestressed
- assembly
- 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
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明はＨＰＣ工法におけるＰＣ床スラブ板等に使用さ
れる変形むくり付き組立筋を内蔵するプレストレストＰ
Ｃ板の製造方法に係るものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a prestressed P having a built-in assembly bar with a deformed strip for use in a PC floor slab board or the like in the HPC method.
The present invention relates to a method for manufacturing a C plate.
（従来の技術） 従来むくり付きＰＣ板を製造する際、むくりのついた型
枠にアーチ状組立鉄筋をセットしてコンクリートを打設
していた。(Prior Art) When manufacturing a PC board with a strip, conventionally, an arch-shaped assembly rebar was set on a frame with a strip and concrete was placed.
（発明が解決しようとする問題点） 前記従来の方法は、アーチ状組立鉄筋を補強筋として内
蔵するＰＣ板とするために、むくりのついた型枠を使用
するので、型枠の製作に多大の手間を要し、工程が煩雑
で、コストが嵩むという問題点があった。(Problems to be Solved by the Invention) In the above-mentioned conventional method, since the formwork with the peeling is used to form the PC plate in which the arch-shaped assembled reinforcing bar is incorporated as the reinforcing bar, the formwork is manufactured. There is a problem that it requires a lot of labor, the process is complicated, and the cost is high.
（問題点を解決するための手段） 本発明は前記の問題点を解決するとともに、アーチ状の
トラス形組立筋を利用してＰＣ板にプレストレスを導入
することを目的として提案されたものであって、アーチ
状のトラス形組立筋を平板成型用の型枠内にセットし、
同組立筋の中央部分を所定位置まで圧下し、この状態で
前記型枠内にコンクリートを打設して平板状のＰＣ板を
成型し、同打設コンクリートの硬化後、前記組立筋に対
する圧下力を解放してＰＣ板に変形むくり付き組立筋の
保有するプレストレスを導入することを特徴とするもの
である。(Means for Solving Problems) The present invention has been proposed for the purpose of solving the above problems and introducing prestress to a PC board by utilizing an arch-shaped truss-shaped assembly bar. So, set the arch-shaped truss-shaped assembly bar in the form for flat plate molding,
The central portion of the assembly bar is pressed down to a predetermined position, concrete is placed in the formwork in this state to form a flat PC plate, and the setting concrete is cured, and then the pressing force is applied to the assembly bar. Is released to introduce prestress held by the deformed and stripped assembly muscle into the PC board.
（作用） 本発明においてはアーチ状のトラス形組立筋を平板成型
用の型枠内にセットし、同組立筋における前記型枠上方
に膨出する中央部分を所定位置まで圧下して前記組立筋
を扁平に変形せしめ、この状態で前記型枠内にコンクリ
ートを打設し、平板状のＰＣ板を成型するものである。(Operation) In the present invention, the arch-shaped truss-shaped assembly bar is set in the form frame for flat plate molding, and the central portion of the assembly bar that bulges above the form frame is pressed down to a predetermined position to form the assembly line. Is deformed into a flat shape, concrete is placed in the mold in this state, and a flat PC plate is molded.
而して打設コンクリートの硬化後、前記組立鉄筋に加え
ていた圧下力を解放すると、扁平状に圧下変形された同
組立鉄筋の復元力によって、むくりを保有する変形組立
筋が内蔵されたＰＣ板が成型される。この際同ＰＣ板の
下端部には圧縮された組立筋によるプレストレスが導入
される。Thus, after the set concrete is hardened, when the rolling down force applied to the rebar is released, the deformed rebar that holds the peeling is built in due to the restoring force of the rebar that has been flattened and deformed. PC board is molded. At this time, prestress is introduced into the lower end portion of the PC board by the compressed assembly muscle.
このように本発明によればアーチ状のトラス形組立筋を
利用して、従来の如き複雑なな型枠を使用することがな
くむくり付き変形組立筋を内蔵したＰＣ板が製造される
ととも、同ＰＣ板にプレストレスが導入され、長スパン
にも耐えられるプレストレストＰＣ板が製造されるもの
であり、同ＰＣ板をＨＰＣ工法のＰＣ床スラブ板に利用
すれば、小梁のない天井が実現できる。As described above, according to the present invention, the PC board having the built-in deformable assembly bar is manufactured by using the arch-shaped truss-shaped assembly bar without using a complicated mold as in the prior art. In addition, prestressing is introduced into the PC board to produce a prestressed PC board that can withstand a long span. If the PC board is used as a PC floor slab board in the HPC method, a ceiling without beam beams will be produced. Can be realized.
（実施例） 以下本発明を図示の実施例について説明する。(Examples) The present invention will be described below with reference to illustrated examples.
アーチ状のトラス形組立筋(1)を第１図に示す平板成型
用型枠(2)内にセットして、同組立筋(1)の中央部に圧下
力Ｐを加えて同組立筋(1)を前記平板成型用型枠(2)内に
扁平状に収める。The arch-shaped truss-shaped assembly bar (1) is set in the flat plate forming frame (2) shown in FIG. 1, and a pressing force P is applied to the central part of the assembly bar (1) to make the assembly bar (1). 1) is flatly housed in the flat plate molding frame (2).
この状態で前記型枠(2)内にコンクリート(3)を打設して
平板状のＰＣ板を成型し、（第２図参照）所定の養生
後、前記組立筋に加えた圧下力Ｐを解放して脱型する
と、前記組立筋(1)の複元力によって第３図及び第４図
に示す如きむくりのついた組立筋を圧縮して扁平状にし
て平板状のプレストレストＰＣ板が成型される。この際
圧下力Ｐの解放に伴って、前記ＰＣ板の下端には圧縮さ
れた組立筋のプストレスが、上端には引張のプレストレ
スが夫々導入され、長スパンにも耐えられるＰＣ床スラ
ブ板が構成される。In this state, concrete (3) is placed in the mold (2) to form a flat PC plate (see FIG. 2), and after the prescribed curing, the pressing force P applied to the assembly bar is applied. When released and released from the mold, the assembly force (1) as described above is compressed by the assembly force as shown in FIGS. 3 and 4 to make it flat and the flat prestressed PC plate is formed. Molded. At this time, with the release of the pressing force P, the prestress of the compressed assembling bar is introduced into the lower end of the PC plate and the tensile prestress is introduced into the upper end of the PC plate. Composed.
（発明の効果） このように本発明によればアーチ状のトラス形組立筋を
圧下して、複雑な形状の型枠を使用することなく平板成
型用の型枠で変形むくり付き組立筋を内蔵した平板状の
ＰＣ板が簡単に製造しうるとともに、同ＰＣ板にプレス
トレスが導入され、長スパンにも耐えられる変形むくり
付き組立筋を内蔵したプレストレストＰＣ板が構成され
るものである。(Effect of the Invention) As described above, according to the present invention, an arch-shaped truss-shaped assembly bar is pressed down, and a deformed striped assembly bar is deformed by a plate-forming mold without using a mold having a complicated shape. A built-in flat PC board can be easily manufactured, and prestress is introduced into the PC board to construct a prestressed PC board with a built-in assembly bar with a deformation strip that can withstand a long span. .
第１図及び第２図は本発明の方法の工程を示す縦断面
図、第３図はアーチ状のトラス形組立筋の正面図、第４
図はその縦断側面図である。 (1)……アーチ状のトラス形組立筋、 (2)……平板状成型用型枠、(3)……コンクリート1 and 2 are longitudinal sectional views showing steps of the method of the present invention, FIG. 3 is a front view of an arch-shaped truss-shaped assembly bar, and FIG.
The figure is a vertical side view. (1) …… Arch-shaped truss-shaped assembly bar, (2) …… Flatform molding form, (3) …… Concrete
Claims (1)
型枠にセットし、同組立筋の中央部分を所定位置まで圧
下し、この状態で前記型枠内にコンクリートを打設して
平板状のＰＣ板を成型し、同打設コンクリートの硬化
後、前記組立筋に対する圧下力を解放して平板状のＰＣ
板にプレストレスを導入することを特徴とする変形むく
り付き組立筋を内蔵するプレストレストＰＣ板の製造方
法。1. An arch-shaped truss-shaped assembly bar is set in a plate-forming mold, and the central portion of the assembly bar is pressed down to a predetermined position. In this state, concrete is placed in the mold. A flat PC plate is molded, and after the cast concrete is hardened, the pressing force to the assembly bar is released to release the flat PC.
A method for manufacturing a prestressed PC board having a built-in prefabricated assembly bar with deformation strips, characterized by introducing prestress into the board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59157672A JPH0654045B2 (en) | 1984-07-30 | 1984-07-30 | Manufacturing method of prestressed PC board with built-in assembly bar with deformation stripping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59157672A JPH0654045B2 (en) | 1984-07-30 | 1984-07-30 | Manufacturing method of prestressed PC board with built-in assembly bar with deformation stripping |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6136459A JPS6136459A (en) | 1986-02-21 |
| JPH0654045B2 true JPH0654045B2 (en) | 1994-07-20 |
Family
ID=15654855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59157672A Expired - Fee Related JPH0654045B2 (en) | 1984-07-30 | 1984-07-30 | Manufacturing method of prestressed PC board with built-in assembly bar with deformation stripping |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0654045B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3061333B2 (en) * | 1992-12-25 | 2000-07-10 | 株式会社竹中工務店 | Floor deflection control method and construction method of steel frame multi-story building. |
| DE69618431T2 (en) | 1995-11-24 | 2002-08-29 | Nisshin Seifun Group Inc | Mechanical shredder |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5613130B2 (en) * | 1973-07-24 | 1981-03-26 | ||
| JPS5528141Y2 (en) * | 1976-07-03 | 1980-07-04 |
-
1984
- 1984-07-30 JP JP59157672A patent/JPH0654045B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6136459A (en) | 1986-02-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |