JPS61126255A - Reverse flat slab structure - Google Patents
Reverse flat slab structureInfo
- Publication number
- JPS61126255A JPS61126255A JP24621684A JP24621684A JPS61126255A JP S61126255 A JPS61126255 A JP S61126255A JP 24621684 A JP24621684 A JP 24621684A JP 24621684 A JP24621684 A JP 24621684A JP S61126255 A JPS61126255 A JP S61126255A
- Authority
- JP
- Japan
- Prior art keywords
- slab
- flat
- formwork
- flat slab
- inverted
- 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
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 10
- 239000000725 suspension Substances 0.000 claims description 4
- 239000011150 reinforced concrete Substances 0.000 claims description 2
- 238000009415 formwork Methods 0.000 description 14
- 230000002787 reinforcement Effects 0.000 description 12
- 238000010276 construction Methods 0.000 description 7
- 230000003014 reinforcing effect Effects 0.000 description 5
- 239000004567 concrete Substances 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
Landscapes
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- Revetment (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）
この発明は、通常のフラットスラブを表裏反対にした形
状（以下、ライジングハンチという）のフラットスラブ
構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a flat slab structure in which a normal flat slab is turned upside down (hereinafter referred to as a rising haunch).
（従来の技術と問題点）
フラットスラブは、梁を用いないでスラブをキャピタル
付きの柱で支持する構造で古くから使われている。梁が
ないため、スラブ底面の型枠１奄がある程度合理化され
たが、それでも大型、型枠を使用する上で、スラブの底
面に突出するドロップパネルの型枠工事が繁雑で、工期
と工費を要するものであった。(Conventional technology and problems) Flat slabs have been used for a long time as a structure in which the slab is supported by columns with capitals instead of using beams. Since there is no beam, the formwork for the bottom of the slab has been streamlined to some extent, but it is still large and when using formwork, the formwork work for the drop panels that protrude from the bottom of the slab is complicated, which reduces construction time and costs. It was necessary.
また、階高を低（しても梁がないため、室内空間を広く
できるメリットを育する反面、耐震性に乏しく、過大な
たわみを生じたり、スラブ自重の増加により地震時に不
利になるため、スラブ厚を大きくできない等の欠点があ
り、その使用はかなり限定されていたが、アンボンド鋼
材の開発により、これらの問題は解決された。In addition, even if the floor height is low (because there are no beams, it has the advantage of increasing indoor space), however, it has poor earthquake resistance, causing excessive deflection, and increasing the slab's own weight, which is disadvantageous in the event of an earthquake. However, with the development of unbonded steel, these problems have been resolved.
しかしながら、アンボンド鋼材は、柱位置でスラブ表面
に一番近づいて略逆懸垂状曲線をなすように配置される
ため、スラブの底面にドロップパネルを設けても、テン
トンライズは一般的に第４図Ａに示すように、ａ＝ ｔ
２− （ｄｌ＋ｄ２）となり、ドロップパネルのない普
通のスラブにアンボンド鋼材を用いた場合と何ら変ると
ころがない。However, because the unbonded steel is placed closest to the slab surface at the column location in a nearly inverted suspension curve, the tent rise is generally the fourth As shown in Figure A, a=t
2-(dl+d2), which is no different from the case where unbonded steel is used for a normal slab without a drop panel.
（発明の目的）
この発明は、上述した従来の問題点に鑑みてなされたも
ので、型枠工事の合理化とアンボンド鋼材のより効率の
良い配置方法を可能にすることを主な目的とするもので
ある。(Object of the invention) This invention was made in view of the above-mentioned conventional problems, and its main purpose is to streamline formwork construction and enable a more efficient method of arranging unbonded steel materials. It is.
（発明の構成）
上記の目的を達成するために、この発明は「鉄筋コンク
リート造のスラブにおいて、躯体スラブの底面が全面に
わたって平担であり、躯体スラブの上面が柱周囲の所要
範囲のみ、その他の部分より高くなっており、柱列帯の
スラブ端部引張側において、アンボンドＰＣ鋼材を略逆
懸垂状曲線をなして、スラブ内に連続して埋設したこと
」を特徴とするものである。(Structure of the Invention) In order to achieve the above object, this invention is based on the following invention: ``In a reinforced concrete slab, the bottom surface of the core slab is flat over the entire surface, and the top surface of the core slab is only in the required area around the columns, and in other areas. It is characterized by the fact that unbonded PC steel is continuously buried in the slab in a substantially reverse suspension curve on the tension side of the slab end of the column band.
（実施例）
まず第３図に従い、この発明の好適な実施例の施工順序
について説明する。(Embodiment) First, referring to FIG. 3, the construction order of a preferred embodiment of the present invention will be described.
スラブの型枠６を組み立て終ると、Ｍ型枠６上に下端筋
１０を配し、柱位置で略逆懸垂曲線をなすようにアンボ
ンドＰＣ鋼材１４に配置する。When the slab formwork 6 is assembled, a lower end reinforcement 10 is placed on the M formwork 6 and placed on the unbonded PC steel material 14 so as to form a substantially reverse catenary curve at the column position.
この時、該ＰＣ鋼材１４が略逆懸垂状曲線を維ｔ！ｉす
るように、柱筋１２の適当な高さ位置に横筋あるいは支
持金物１３を瑣り付けて、ｕｉＰＣ鋼材１４を支ｔＩｉ
することは勿論である。つづいて下端筋１１を配し、ラ
イジ／グハンチ４部分には転用可能な型枠を配し、スラ
ブコンクリートを打設して工事は完了する。At this time, the PC steel material 14 maintains a substantially inverted suspension curve t! uiPC steel material 14 is supported by attaching horizontal reinforcements or supporting metal fittings 13 to the appropriate height positions of the column reinforcements 12 as shown in i.
Of course you can. Next, the lower end reinforcing bars 11 are placed, reusable formwork is placed on the riser/groove 4 portions, and slab concrete is poured to complete the construction.
従来のドロップパネル５がある場合の配筋作業は、該ド
ロップパネル５部分の下端筋１０を配し、更に残りのス
ラブの下端筋１０を醒紀ドロフフハネル５部分の下端筋
１０とラブダさせて配筋するのが一般的で、鉄筋の画一
的なプレハブ化が困難なため非常に煩雑で手間を要して
いた。Reinforcement work when there is a conventional drop panel 5 is to arrange the lower end reinforcement 10 of the drop panel 5 part, and then place the lower end reinforcement 10 of the remaining slab with the lower end reinforcement 10 of the Sekki Dorofu Hanel 5 part. It is common to use reinforcing bars, and it is difficult to uniformly prefabricate reinforcing bars, which is extremely complicated and time-consuming.
つぎに第２図は、フラットスラブと逆フラットスラブ底
面における型枠組み立て形状の比較断面図である。第２
図Ａは従来のフラットスラブで、ドロップパネル５があ
るために該スラブ底面の型枠６′形状が凹凸になり、該
型枠６′を保持する支持 ゛部材８を支保エフ上
に別に設けなければならず、多大の工期と工費を要して
いた。これに対し、第２図Ｂはこの発明による逆フラフ
トスラブで、ドロップパネル５部分をスラブ上部４に設
け、スラブ底面は全面にわたって平担であるので、大型
（移動式）型枠の使用が好都合で多大の工期と工費を節
減できる。Next, FIG. 2 is a comparative sectional view of the shape of the formwork on the bottom surface of a flat slab and an inverted flat slab. Second
Figure A shows a conventional flat slab. Due to the presence of the drop panel 5, the shape of the formwork 6' on the bottom of the slab is uneven, and a support member 8 for holding the formwork 6' must be separately provided on the support F. However, it required a large amount of construction time and cost. On the other hand, Fig. 2B shows an inverted fluff slab according to the present invention, in which the drop panel 5 portion is provided on the upper part 4 of the slab, and the bottom surface of the slab is flat over the entire surface, making it convenient to use a large (movable) formwork. A large amount of construction time and costs can be saved.
つづいてフラットスラブ（第４図Ａ）と逆フラットスラ
ブ（同図Ｂ）における、テントンライズの比較説明図で
る。スラブ厚をｔ２． ドロップパネル５部分および
ライジングハンチ部分のスラブ厚をＬｌ、アン。１τン
ドＰＣ鋼材１４の最上部とスラブ上端迄の距離をｄｌ、
アンボンドＰＣ鋼材１４の最下部とスラブ上端迄の距離
をｄ２とすると、フラットスラブにおけるテンド７ライ
ズａはａ＝ ｔ２− （ｄｌ＋ｄ２）となり、逆フラッ
トスラブにおけるテンド７ライズｂはｂ＝ ｉ−（ｄｌ
＋ｄ２）となる。Next is a comparative diagram of tent rise in a flat slab (FIG. 4A) and an inverted flat slab (FIG. 4B). The slab thickness is set to t2. Set the slab thickness of the drop panel 5 part and the rising haunch part to Ll and An. The distance from the top of the 1τnd PC steel material 14 to the top of the slab is dl,
If the distance from the bottom of the unbonded PC steel material 14 to the top of the slab is d2, the tend 7 rise a in the flat slab is a = t2- (dl + d2), and the tend 7 rise b in the reverse flat slab is b = i- (dl
+d2).
したがって、逆フラットスラブのテンド／ライズｂがフ
ラットスラブのテントンライズａに比べ、Ｌｌ−１また
け大きくなり、構造設計上効率の良い１１ ＣＭ材の配
置ができる。Therefore, the tend/rise b of the inverted flat slab is larger than the tent rise a of the flat slab by Ll-1, and the 11 CM material can be arranged efficiently in terms of structural design.
第５図はこの発明によるライジノグハ／チ４と残りのス
ラブ部分を水平にする実施例である。FIG. 5 shows an embodiment of the present invention in which the leveling plate/chip 4 and the remaining slab portion are leveled.
躯体スラブ３の表面は、ライジ／グハ／チ４部分を除い
て一段低く、該低くなった躯体スラブ（従来だと鉄筋配
筋後または並行して埋込配管等を行っていた。）上（鉄
筋等の障害物がない所）で配管１８、配Ｉ！１９を自由
に行い、その後ライジへグ八７チ４の表面と同一レベル
になるように、シングーコンクリート１５を打設するか
、軽量ブロック１６空洞ブロツク１７等を用いて行う。The surface of the frame slab 3 is one step lower except for the Raiji/Guha/Chi 4 portions, and above the lowered frame slab (in the past, embedded piping, etc. were done after reinforcing reinforcement or in parallel) ( Piping 18, where there are no obstacles such as reinforcing bars, I! 19 freely, and then pour concrete 15 so that it is on the same level as the surface of the riser concrete 15, or use a lightweight block 16, hollow block 17, etc.
（発明の効果）
この発明は、以上実施例で詳述したように構成されてい
るため、型枠工事の合理化とアンボンドＰＣ鋼材のより
効率の良い配置ができると共に、天井裏が真平なので、
ダクト配管等天井裏の工事、および天井工事の省力化が
できる等の利点を存するものである。(Effects of the Invention) Since the present invention is configured as described in detail in the embodiments above, it is possible to rationalize the formwork work and more efficiently arrange the unbonded PC steel materials.
This method has the advantage of saving labor for work behind the ceiling such as duct piping and ceiling work.
第１図はこの発明を用いた斜視図で、第２図Ａはフラッ
トスラブ、同図Ｂは逆フラットスラブで、スラブ底面型
枠の比較を示す断面図、第３図はこの発明による施工順
序を示す斜視図と断面図で、第４図Ａは従来、同図Ｂは
この発明によるテンドンライズを説明する断面図、第５
図はこの発明によるライジングハンチと残りのスラブ嘔
体部分を水平にする実施例の断面図である。
１・・・柱 ２・・・上階のスラブ底面３
・・・スラブ ４・・・ライジングハンチ５・
・・ドロップパネル ａ８′・・・型枠７・・・支保工
８・・・支持部材１０・・・上端筋
１１・・・上端筋１２・・・柱筋 １３・・・
横筋、支持金物１４・・・アノボンドＰ（１４材
１５・・・シングーコンクリート
１６・・軽量プロＶり １７・・・空洞ブロック１８・
・・配管 １９・・・配線Ｌ・・・スバ７間隔Figure 1 is a perspective view using this invention, Figure 2 A is a flat slab, Figure B is a cross-sectional view showing a comparison of slab bottom formwork, and Figure 3 is a construction order according to this invention. FIG. 4A is a perspective view and a cross-sectional view showing a tendon rise according to the present invention, FIG. 4A is a conventional one, FIG.
The figure is a sectional view of an embodiment of the present invention in which the rising haunch and remaining slab body portion are leveled. 1... Column 2... Upper floor slab bottom 3
...Slab 4...Rising haunch 5.
...Drop panel a8'...Formwork 7...Shoring 8...Support member 10...Top reinforcement
11... Upper end reinforcement 12... Column reinforcement 13...
Horizontal reinforcement, support hardware 14...Anobond P (14 material 15...Singu concrete 16...Lightweight professional Vri 17...Cavity block 18...
...Piping 19...Wiring L...Suba 7 intervals
Claims (1)
面が全面にわたつて平担であり、躯体スラブの上面が柱
周囲の所要範囲のみ、その他の部分より高くなつている
ことを特徴とする逆フラットスラブ構造。 （２）柱列帯のスラブ端部引張側において、アンボンド
ＰＣ鋼材を略逆懸垂状曲線をなして、スラブ内に連続し
て埋設したことを特徴とする第１項記載の逆フラットス
ラブ構造。[Claims] A slab made of reinforced concrete, characterized in that the bottom surface of the framework slab is flat over the entire surface, and the top surface of the framework slab is higher only in a required area around the columns than in other parts. Inverted flat slab structure. (2) The inverted flat slab structure according to item 1, wherein the unbonded PC steel material is continuously buried in the slab in a substantially inverted suspension curve on the tension side of the slab end of the column band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24621684A JPS61126255A (en) | 1984-11-22 | 1984-11-22 | Reverse flat slab structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24621684A JPS61126255A (en) | 1984-11-22 | 1984-11-22 | Reverse flat slab structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61126255A true JPS61126255A (en) | 1986-06-13 |
| JPH0524294B2 JPH0524294B2 (en) | 1993-04-07 |
Family
ID=17145239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24621684A Granted JPS61126255A (en) | 1984-11-22 | 1984-11-22 | Reverse flat slab structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61126255A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63134730A (en) * | 1986-11-25 | 1988-06-07 | 清水建設株式会社 | Beam made of prestressed concrete |
| JPS63142137A (en) * | 1986-12-02 | 1988-06-14 | 清水建設株式会社 | Method for wiring of tendon |
| JP2013234506A (en) * | 2012-05-10 | 2013-11-21 | Hazama Ando Corp | Flat slab structure building |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5955921A (en) * | 1982-09-25 | 1984-03-31 | Ohbayashigumi Ltd | Mat slab foundation structure |
-
1984
- 1984-11-22 JP JP24621684A patent/JPS61126255A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5955921A (en) * | 1982-09-25 | 1984-03-31 | Ohbayashigumi Ltd | Mat slab foundation structure |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63134730A (en) * | 1986-11-25 | 1988-06-07 | 清水建設株式会社 | Beam made of prestressed concrete |
| JPH0460173B2 (en) * | 1986-11-25 | 1992-09-25 | Shimizu Construction Co Ltd | |
| JPS63142137A (en) * | 1986-12-02 | 1988-06-14 | 清水建設株式会社 | Method for wiring of tendon |
| JPH0473500B2 (en) * | 1986-12-02 | 1992-11-20 | Shimizu Construction Co Ltd | |
| JP2013234506A (en) * | 2012-05-10 | 2013-11-21 | Hazama Ando Corp | Flat slab structure building |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0524294B2 (en) | 1993-04-07 |
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