JPS6346573Y2 - - Google Patents
Info
- Publication number
- JPS6346573Y2 JPS6346573Y2 JP1987001707U JP170787U JPS6346573Y2 JP S6346573 Y2 JPS6346573 Y2 JP S6346573Y2 JP 1987001707 U JP1987001707 U JP 1987001707U JP 170787 U JP170787 U JP 170787U JP S6346573 Y2 JPS6346573 Y2 JP S6346573Y2
- Authority
- JP
- Japan
- Prior art keywords
- column band
- slab
- cable
- flat
- column
- 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 8
- 239000010959 steel Substances 0.000 claims description 8
- 239000011513 prestressed concrete Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Landscapes
- Reinforcement Elements For Buildings (AREA)
Description
【考案の詳細な説明】
本考案は、プレストレストコンクリートスラブ
に関するものである。[Detailed Description of the Invention] The present invention relates to a prestressed concrete slab.
本考案の目的は、特殊なPCケーブルを特定の
態様で用い、且つ、テーパスラブ方式を採用する
ことにより、スラブの強度を格段に増大させて、
スラブの厚さを大幅に低減すると共に、梁を省略
して、階高を低くし、建物の高さを低くし、もつ
て、空間の有効利用、鉄筋等の合理化、工期の短
縮を図り、躯体コストの低減を得ることにある。 The purpose of this invention is to significantly increase the strength of the slab by using a special PC cable in a specific manner and by adopting a taper slab method.
In addition to significantly reducing the thickness of the slab, we also omitted beams, lowered the floor height, and lowered the height of the building, thereby making effective use of space, rationalizing the use of reinforcing steel, and shortening the construction period. The objective is to reduce the cost of the building block.
而して、本考案は、スラブ下面において、柱間
に平坦な柱列帯を形成すると共に、該柱列帯の両
辺から斜めに上向するテーパ面を連設し、柱列帯
内にPCケーブルを挿通してプレストレスを導入
し、そのPCケーブルとして、帯状薄鋼板をスパ
イラル状に巻き且つ扁平にしたフラツトシースに
複数のPC鋼より線を一列に並べて挿通したもの
を用い、該PCケーブルを平らな二面が上下に面
する姿勢で上記柱列帯内にその長手方向に配する
と同時に柱列帯中間にて下方へ弯曲させて成り、
これにより、スラブの厚さを低減し、梁を省略し
て、所期の目的を達成したものである。以下、図
示の実施例について説明する。 Therefore, the present invention forms a flat column band between the columns on the lower surface of the slab, and also connects tapered surfaces diagonally upward from both sides of the column band, and installs PC in the column band. Prestress is introduced by inserting the cable, and the PC cable is made by inserting a plurality of prestressed steel strands in a line through a flat sheath made by winding a strip-shaped thin steel plate into a spiral shape and making it flat. It is arranged in the longitudinal direction within the column band with two flat surfaces facing upward and downward, and at the same time is curved downward in the middle of the column band,
As a result, the thickness of the slab was reduced, the beams were omitted, and the intended purpose was achieved. The illustrated embodiment will be described below.
第１図は、本考案に係るプレストレストコンク
リートスラブの下面を示しており、第２図は、第
１図−線の断面図を示している。 FIG. 1 shows the lower surface of a prestressed concrete slab according to the present invention, and FIG. 2 shows a sectional view taken along the line of FIG. 1.
この第１図、第２図に示すスラブ１は、下面に
おいて、同一のスパンで前後左右に配される複数
の柱２…間に平坦な柱列帯１１…を形成し、該柱
列帯の両辺からそれぞれ等しく斜めに上向するテ
ーパ面１２…を連設しており、隣接する４箇の傾
斜面１２ａ…で平面形状正方形、側面形状台形の
窪み１３…を形成し、該窪みの中央を小さな正方
形の水平面１４…にしている。また、上記柱列帯
１１…内には、それぞれ柱２…の両脇を通る２条
のPCケーブル３，３…を前後左右に挿通し、プ
レストレスを導入している。 The slab 1 shown in FIGS. 1 and 2 forms a flat column band 11 on the lower surface between a plurality of columns 2 arranged in the front, rear, left, and right directions with the same span, and The tapered surfaces 12 are arranged in a row from both sides equally and diagonally upward, and the four adjacent inclined surfaces 12a form a depression 13 having a square plan view and a trapezoidal side surface. The horizontal surface 14 is a small square. In addition, two PC cables 3, 3... are inserted into the column bands 11 in the front, back, left and right, passing along both sides of the columns 2, respectively, to introduce prestress.
PCケーブル３，３…は、第３図、第４図に示
すフラツトケーブルを用いる。該ケーブルは、帯
状薄鋼板をスパイラル状に巻き且つ偏平に形成し
たフラツトシース３１を設け、該フラツトシース
に複数のPC鋼より線３２…を一列に並べて挿通
したものである。この場合は、交差点において上
下の位置ずれが少なく、途中を下方へ撓ませるこ
とが容易であり、その際、円形シースを用いるよ
りも撓ませる量を大きく取ることができ、より大
きなプレストレスによる吊上げ効果が得られ、ま
た、スラブの厚さを薄くできる。 For the PC cables 3, 3..., flat cables shown in FIGS. 3 and 4 are used. The cable is provided with a flat sheath 31 made of a strip-shaped thin steel plate wound spirally and formed flat, and a plurality of PC steel stranded wires 32 are inserted in a line through the flat sheath. In this case, there is little vertical displacement at the intersection, and it is easy to bend the midway downward. In this case, the amount of bending can be larger than when using a circular sheath, and the lifting can be carried out with greater prestress. The effect can be obtained and the thickness of the slab can be reduced.
なお、上記PCケーブル３，３…は、フラツト
シース３１内の空隙にセメントペーストを充填し
て、ボンド式とするとよい。 Note that the PC cables 3, 3, . . . are preferably of a bond type by filling the void in the flat sheath 31 with cement paste.
本考案によれば、スラブ下面において、柱間を
帯状で平坦な柱列帯に形成し、該柱列帯の両辺か
ら斜めに上向するテーパ面を連設しているので、
鉛直荷重に対する応力性状を改善でき、撓みを少
なくできて、構造力学上十分な強度を得ることが
でき、更に、その柱列帯内にPCケーブルを挿通
してプレストレスを導入するだけでなく、その
PCケーブルとして、帯状薄鋼板をスパイラル状
に巻き且つ扁平にしたフラツトシースに複数の
PC鋼より線を一列に並べて挿通したものを用い
ているので、PCケーブルを大きく弯曲させるこ
とができて、プレストレスによる格段に大きな吊
上げ効果を得ることができ、柱列帯の強度を飛躍
的に増大できる。その結果、梁を省略でき、スラ
ブ厚さを大幅に低減でき、階高を低くでき、建物
の高さを低くできて、空間を有効に利用でき、鉄
筋等の合理化及び工期の短縮ができ、躯体コスト
を大幅に低廉にできる。 According to the present invention, on the lower surface of the slab, the space between the columns is formed into a band-shaped flat column band, and tapered surfaces extending diagonally upward from both sides of the column band are continuous.
It is possible to improve stress properties against vertical loads, reduce deflection, and obtain sufficient structural strength.Furthermore, in addition to introducing prestress by inserting PC cables into the column band, the
As a PC cable, multiple wires are connected to a flat sheath made by winding a strip of thin steel plate in a spiral shape and making it flat.
Since we use stranded PC steel wires lined up in a row and inserted through them, the PC cable can be bent greatly and a significantly greater lifting effect can be obtained by prestressing, dramatically increasing the strength of the column strip. can be increased to As a result, beams can be omitted, slab thickness can be significantly reduced, floor heights can be lowered, building height can be lowered, space can be used more effectively, reinforcing bars can be rationalized, and construction periods can be shortened. The construction cost can be significantly reduced.
図面は、本考案の実施例で、第１図は、スラブ
の下面図、第２図は、第１図−線の断面図、
第３図は、PCケーブルの斜視図、第４図は、同
断面図である。
１……スラブ、２……柱、３……PCケーブル、
１１……柱列帯、１２……テーパ面、１２ａ……
傾斜面、１３……窪み。
The drawings show an embodiment of the present invention, FIG. 1 is a bottom view of the slab, FIG. 2 is a sectional view taken along the line shown in FIG. 1,
FIG. 3 is a perspective view of the PC cable, and FIG. 4 is a sectional view of the same. 1...Slab, 2...Column, 3...PC cable,
11...Column band, 12...Tapered surface, 12a...
Inclined surface, 13... depression.
Claims (1)
帯に形成すると共に、該柱列帯の両辺から斜めに
上向するテーパ面を連設し、また、柱列帯内に
PCケーブルを挿通してプレストレスを導入し、
そのPCケーブルとして、帯状薄鋼板をスパイラ
ル状に巻き且つ偏平にしたフラツトシースに複数
のPC鋼より線を一列に並べて挿通したものを用
い、該PCケーブルを平らな二面が上下に面する
姿勢で上記柱列帯内にその長手方向に配すると同
時に柱列帯中間にて下方へ弯曲させて挿通したこ
とを特徴とするプレストレストコンクリートスラ
ブ。 On the lower surface of the slab, the spaces between the columns are formed into a belt-shaped flat column band, and tapered surfaces extending obliquely upward are provided from both sides of the column band.
Insert the PC cable and introduce prestress,
The PC cable is made by winding a thin steel strip into a spiral shape and inserting a plurality of stranded PC steel wires in a line through a flat sheath. A prestressed concrete slab characterized in that it is arranged in the longitudinal direction of the column band and is curved downwardly at the middle of the column band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987001707U JPS6346573Y2 (en) | 1987-01-08 | 1987-01-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987001707U JPS6346573Y2 (en) | 1987-01-08 | 1987-01-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62113209U JPS62113209U (en) | 1987-07-18 |
| JPS6346573Y2 true JPS6346573Y2 (en) | 1988-12-02 |
Family
ID=30779870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987001707U Expired JPS6346573Y2 (en) | 1987-01-08 | 1987-01-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6346573Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5625548A (en) * | 1979-08-07 | 1981-03-11 | Kajima Corp | Structure of beam in reinforced concrete |
| JPS5781545A (en) * | 1980-11-05 | 1982-05-21 | Taisei Corp | Prestressed taper slab |
-
1987
- 1987-01-08 JP JP1987001707U patent/JPS6346573Y2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5625548A (en) * | 1979-08-07 | 1981-03-11 | Kajima Corp | Structure of beam in reinforced concrete |
| JPS5781545A (en) * | 1980-11-05 | 1982-05-21 | Taisei Corp | Prestressed taper slab |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62113209U (en) | 1987-07-18 |
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