JPS6340584Y2 - - Google Patents
Info
- Publication number
- JPS6340584Y2 JPS6340584Y2 JP1980159089U JP15908980U JPS6340584Y2 JP S6340584 Y2 JPS6340584 Y2 JP S6340584Y2 JP 1980159089 U JP1980159089 U JP 1980159089U JP 15908980 U JP15908980 U JP 15908980U JP S6340584 Y2 JPS6340584 Y2 JP S6340584Y2
- Authority
- JP
- Japan
- Prior art keywords
- steel wire
- unbonded
- concrete
- plate
- wedge
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 26
- 239000010959 steel Substances 0.000 claims description 26
- 239000004567 concrete Substances 0.000 claims description 19
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 238000005336 cracking Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims 1
- 238000009415 formwork Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 3
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 239000011178 precast concrete Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Landscapes
- Panels For Use In Building Construction (AREA)
Description
【考案の詳細な説明】
この考案は、建物の外壁、開仕切壁等階高に相
当する丈を大型プレキヤストのコンクリート板に
関し、その目的はアンボンドPC鋼線を鉄筋と併
用して、コンクリートの乾燥収縮等によつて生ず
るひびわれを防止することにある。[Detailed explanation of the invention] This invention relates to a large precast concrete plate with a length equivalent to the floor height of a building's exterior walls, partition walls, etc. The purpose is to use unbonded PC steel wire in combination with reinforcing bars to dry concrete The purpose is to prevent cracks caused by shrinkage, etc.
従来、建物の壁体となる大型プレキヤストコン
クリート板は、脱型・建て起しあるいはストツク
中に曲げ力が作用して亀裂が生じる恐れがある。
また、ストツク中自重によるコンクリートのクリ
ープ、日射または自然の乾燥によるひびわれが生
ずる。 Conventionally, large precast concrete plates that form the walls of buildings are at risk of cracking due to bending force applied during demolding, erection, or stocking.
Additionally, concrete creep occurs due to its own weight during storage, and cracks occur due to sunlight or natural drying.
以上の問題を解消する方法として、プレテンシ
ヨニング方式によつてプレストレスを導入すると
してもコンクリート打設前に鋼線を緊張しアバツ
トメントに定着しておき、コンクリートの強度が
発現してから鋼線をアバツトから外し、端末の鋼
線を切断する必要があり、製作設備費、製作手間
が相当に嵩む。 As a way to solve the above problems, even if prestress is introduced using the pretensioning method, the steel wire is tensed and fixed to the abutment before concrete is poured, and the steel wire is It is necessary to remove the terminal from the abutment and cut the steel wire at the terminal, which increases the production equipment cost and production time considerably.
この考案は、前記問題点を解消すべく案出した
もので、以下その詳細を図示した実施例によつて
説明する。 This invention was devised to solve the above-mentioned problems, and its details will be explained below with reference to illustrated embodiments.
このコンクリート板には通常の鉄筋１とアンボ
ンドPC鋼線２が配置してある。 Regular reinforcing bars 1 and unbonded PC steel wires 2 are placed on this concrete plate.
鉄筋１はパネルにかかる地震力、風圧力等の水
平力、積載荷重による外力に対して応力を負担さ
せ、アンボンドPC鋼線２には負担させない。そ
してこのアンボンドPC鋼線２はコンクリート３
に圧縮力を加えてコンクリートの亀裂ひびわれを
防止するもので、板厚の中央部に直線状に配置し
てある。 The reinforcing bars 1 bear stress against the external force due to earthquake force, horizontal force such as wind pressure, and live load applied to the panel, but the unbonded PC steel wire 2 does not bear stress. And this unbonded PC steel wire 2 is concrete 3
This prevents cracks in concrete by applying compressive force to the plate, and is arranged in a straight line in the center of the plate thickness.
製作に際しては、型枠６およびこれに当接した
円錐台形の内型枠９および楔受金具１２または鋼
線つかみ金物５に挿通されたアンボンドPC鋼線
２の端部をそれぞれ定着板４に挿通し、この鋼線
つかみ金物５側にあたる定着板４を型枠６にスリ
ーブ７を貫通したボルト８によつて引付けてお
き、次に反対側型枠６より突出しているアンボン
ドPC鋼線２をたるまない程度に緊張しておき、
内型枠９に仮楔金物１０をはめ込み、かつ鉄筋１
を型枠６内に配筋してコンクリート３を打設す
る。次いで、コンクリート３が未硬化の間にボル
ト８を外すとともに、加熱養生し、コンクリート
３の硬化後、内型枠９を外すことにより、凹溝内
に露出したアンボンドPC鋼線２にジヤツキを取
付けて緊張し、楔１１を楔受金物１２にはめ込
み、端部アンボンドPC鋼線２を切断し、凹溝内
にはモルタル充填して仕上げる。 During production, the ends of the unbonded PC steel wire 2 that have been passed through the formwork 6, the truncated conical inner formwork 9 that is in contact with it, and the wedge receiver 12 or the steel wire gripper 5 are inserted into the fixing plate 4, respectively. Then, the fixing plate 4 on the steel wire gripping hardware 5 side is attached to the formwork 6 with bolts 8 passing through the sleeve 7, and then the unbonded PC steel wire 2 protruding from the formwork 6 on the opposite side is attached. Keep the tension so that it doesn't slacken,
Insert the temporary wedge hardware 10 into the inner formwork 9, and insert the reinforcing bar 1.
Reinforcement is arranged in the formwork 6 and concrete 3 is poured. Next, bolts 8 are removed while the concrete 3 is not hardened, and after the concrete 3 is hardened, the inner formwork 9 is removed, and jacks are attached to the unbonded PC steel wire 2 exposed in the groove. The wedge 11 is fitted into the wedge holder 12, the end unbonded PC steel wire 2 is cut, and the groove is filled with mortar to finish.
また、鋼線つかみ金物側の凹溝内にもモルタル
を充填する。第４図のように鋼線つかみ金物側に
凹溝を作らないようにしてもよい。 In addition, mortar is also filled into the groove on the side of the steel wire gripping hardware. As shown in FIG. 4, the groove may not be formed on the steel wire gripping hardware side.
このように製作したこの考案は一方の側部端部
に円錐台形の凹溝にモルタルが充填され凹溝に接
し楔１１をはめ込んだ楔受金具１２が定着板４に
当接してコンクリート板４内に埋設されており、
他方の側部端部に鋼線つかみ金物５が定着板４に
当接してコンクリート３内に埋設されておる。 In this device manufactured in this way, a truncated conical groove is filled with mortar at one side end, and the wedge holder 12 in which the wedge 11 is fitted in contact with the groove contacts the fixing plate 4 and is inserted into the concrete plate 4. It is buried in
A steel wire gripper 5 is embedded in the concrete 3 in contact with the fixing plate 4 at the other side end.
この考案は以上の構成からなり、建物の壁体を
構成するプレキヤストのコンクリート板にアンボ
ンドPC鋼線が埋設されているので、弾性的にな
るとともに、曲げ力に対して強くなり、またプレ
ストレスが導入されているので曲げ亀裂が入りに
くく、乾燥収縮によるひびわれが防止できる。 This idea consists of the above-mentioned structure, and unbonded PC steel wires are embedded in the precast concrete plates that make up the walls of the building, making them elastic, strong against bending force, and free from prestress. This makes it difficult for bending cracks to occur and prevents cracks caused by drying shrinkage.
さらにコンクリート板には一方の側部に楔をは
めた楔受金具と、定着板が埋設され他方の側部に
鋼線つかみ金物と定着板が埋設されているから、
アンボンドPC鋼線の緊張は脱型後でよく、スト
ツクヤードにコンクリート板を運搬してからまと
めて緊張作業ができ、アバツトメントが不要であ
るので、製作が比較的容易である。 Furthermore, the concrete plate has a wedge receiver and a fixing plate buried on one side, and a steel wire grip and a fixing plate are buried on the other side.
The unbonded PC steel wire can be tensioned after it is removed from the mold, and the tensioning work can be carried out all at once after transporting the concrete plates to the stockyard, and there is no need for an abutment, so production is relatively easy.
第１図、第２図はコンクリート板要部の断面
図、第３図、第４図は製造過程の一部断面図であ
る。
１……鉄筋、２……アンボンドPC鋼線、３…
…コンクリート、４……定着板、５……鋼線つか
み金物、６……型枠、７……スリーブ、８……ボ
ルト、９……内型枠、１０……仮楔金物、１１…
…楔、１２……楔受金物。
Figures 1 and 2 are cross-sectional views of the main parts of the concrete plate, and Figures 3 and 4 are partial cross-sectional views of the manufacturing process. 1...Reinforcement bar, 2...Unbonded PC steel wire, 3...
...Concrete, 4...Fixing plate, 5...Steel wire grip hardware, 6...Formwork, 7...Sleeve, 8...Bolt, 9...Inner formwork, 10...Temporary wedge hardware, 11...
...Wedge, 12...Wedge holder hardware.
Claims (1)
とともに、コンクリートのひびわれ防止のための
アンボンドPC鋼線を配置してあるコンクリート
板であつて、前記アンボンドPC鋼線は板厚の中
央部に直線状をなして配置してあり、コンクリー
ト板の側端部には円錐台形の凹溝が形成され凹溝
に接し前記アンボンドPC鋼線を挿通した楔をは
め込んだ楔受金具が定着板に当接して埋設され、
他側端部にはアンボンドPC鋼線を挿通した鋼線
つかみ金物が定着板に当接して埋設されているこ
とを特徴とするコンクリート板。 This is a concrete plate in which reinforcing bars to bear the external force applied to the large plate are arranged, and unbonded PC steel wires are arranged to prevent concrete from cracking, and the unbonded PC steel wires are straight in the center of the plate thickness. A truncated cone-shaped groove is formed at the side end of the concrete plate, and a wedge receiving metal fitting fitted with a wedge through which the unbonded PC steel wire is inserted contacts the groove and abuts against the fixing plate. buried in
A concrete plate characterized in that a steel wire gripping hardware through which an unbonded PC steel wire is inserted is buried at the other end in contact with a fixing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980159089U JPS6340584Y2 (en) | 1980-11-07 | 1980-11-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980159089U JPS6340584Y2 (en) | 1980-11-07 | 1980-11-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5782511U JPS5782511U (en) | 1982-05-21 |
| JPS6340584Y2 true JPS6340584Y2 (en) | 1988-10-24 |
Family
ID=29518120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1980159089U Expired JPS6340584Y2 (en) | 1980-11-07 | 1980-11-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6340584Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004188907A (en) * | 2002-12-13 | 2004-07-08 | Supankuriito Corp:Kk | Method for manufacturing pre-cast concrete plate |
| JP6487727B2 (en) * | 2015-03-10 | 2019-03-20 | 鹿島建設株式会社 | Wall body construction method and wall body |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5196124A (en) * | 1975-02-19 | 1976-08-23 |
-
1980
- 1980-11-07 JP JP1980159089U patent/JPS6340584Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5196124A (en) * | 1975-02-19 | 1976-08-23 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5782511U (en) | 1982-05-21 |
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