JPH05148931A - Floor plate - Google Patents
Floor plateInfo
- Publication number
- JPH05148931A JPH05148931A JP31781291A JP31781291A JPH05148931A JP H05148931 A JPH05148931 A JP H05148931A JP 31781291 A JP31781291 A JP 31781291A JP 31781291 A JP31781291 A JP 31781291A JP H05148931 A JPH05148931 A JP H05148931A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- unbonded
- steel wire
- board
- shear reinforcing
- 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.)
- Pending
Links
Landscapes
- Reinforcement Elements For Buildings (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】この発明は型枠兼用のプレキャス
トコンクリート板(以下PC板という)とその上面に打
設したコンクリート層からなる床板に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor board composed of a precast concrete board (hereinafter referred to as a PC board) which also serves as a formwork and a concrete layer cast on the upper surface thereof.
【0002】[0002]
【発明が解決しようとする課題】この発明は、型枠工事
や下端筋配筋等の手間を大幅に削減でき、支保工を少な
くして下階の作業スペースを広くして、施工の作業性の
向上を図ることができ、かつ、高強度であって、ひび割
れやたわみが発生しがたく、長スパン化を図ることがで
きる床板を提案するにある。SUMMARY OF THE INVENTION The present invention can greatly reduce the time and labor required for formwork and bottom reinforcement, and reduce the supporting work to widen the work space on the lower floor to improve workability in construction. It is an object of the present invention to propose a floor board which can improve the heat resistance, has high strength, is less prone to cracking and bending, and can have a long span.
【0003】[0003]
【課題を解決するための手段】この床板は型枠兼用のP
C板とその上面に打設したコンクリート層からなる床板
において、PC板は上面に長辺方向に沿って波形に折曲
した剪断補強筋およびその波形頂部に固着した縦筋が突
設してあり、コンクリート層には直交する2方向にアン
ボンドPC鋼線を配線し、プレストレスを導入してなる
ことを特徴とする。[Means for Solving the Problems] This floor board is a P that also serves as a formwork.
In a floor board composed of a C board and a concrete layer cast on the upper surface of the C board, the PC board is provided with a shear reinforcing bar bent in a corrugated shape along the long side direction and a vertical bar fixed to the corrugated top part on the upper surface. In the concrete layer, unbonded PC steel wires are wired in two directions orthogonal to each other, and prestress is introduced.
【0004】[0004]
【作用】この床板は、床板下層を構成するPC板は上面
に波形に折曲した剪断補強筋および縦筋が突設してあっ
てトラス構造として機能し、直交する2方向に配筋した
アンボンドPC鋼線にはプレストレスを導入するので床
板と上層のコンクリート層とは強固に一体に結合し、高
強度を発現し、ひび割れや過大なたわみの発生を防ぎ、
長スパン化を図ることができる。アンボンドPC鋼線
は、剪断補強筋、縦筋の方向と並列に配したり、あるい
は波形の剪断補強筋内を挿通して直交して配したりでき
るので、配筋の障害とはならない。PC板には剪断補強
筋、縦筋が突設してあるので、下端筋の配筋は必要がな
い。またPC板は剪断補強筋、縦筋のほか、埋設した補
強筋で補強してあり、支保工を減じ床板の施工ができ
る。In this floor board, the PC board which constitutes the lower layer of the floor board functions as a truss structure in which the corrugated shear reinforcing bar and the vertical bar project on the upper surface and function as a truss structure. Since prestress is introduced into the PC steel wire, the floorboard and the upper concrete layer are firmly bonded together, exhibiting high strength and preventing the occurrence of cracks and excessive bending,
A longer span can be achieved. The unbonded PC steel wire can be arranged in parallel with the directions of the shear reinforcing bar and the longitudinal bar, or can be inserted through the corrugated shear reinforcing bar and arranged orthogonally, so that it does not hinder the bar arrangement. Since the PC plate is provided with a shear reinforcing bar and a vertical bar projecting, it is not necessary to arrange the bottom bar. In addition, the PC board is reinforced by shear reinforcements, vertical reinforcements, and embedded reinforcements, so flooring can be done with reduced support work.
【0005】[0005]
【実施例】図1に、この床板の下層を構成する型枠兼用
のPC板1を示す。このPC板1は格子状の鉄筋2が埋
設してあり、上面には長辺方向に沿って波形に折曲した
2条1対をなし並列する複数条の剪断補強筋3が突設し
てあり、1対をなす2条の補強筋3の波形頂部は、間に
縦筋4を挟み固着してある。なお、このPC板1は長さ
6000mm、幅2400mm、1800mmであり、4対お
よび3対の剪断補強筋が並列し突設してある。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a PC board 1 which also serves as a formwork and constitutes the lower layer of this floor board. This PC board 1 has a grid-shaped reinforcing bar 2 embedded therein, and a plurality of parallel shear reinforcing bars 3 are formed on the upper surface of the PC plate 1 to form a pair of two linearly bent corrugations along the long side direction. The corrugated tops of the two reinforcing bars 3 forming a pair are fixed by interposing the vertical bars 4 therebetween. The PC board 1 has a length of 6000 mm, a width of 2400 mm, and a width of 1800 mm, and four and three pairs of shear reinforcing bars are juxtaposed in parallel.
【0006】以下、このPC板1を用い構成された床板
をその施工例をあげて説明する。A floorboard constructed by using the PC board 1 will be described below with reference to its construction example.
【0007】図2において、四隅に鉄筋コンクリート柱
5を建込み形成した床板を施工すべき正方形の面に、P
C板1を敷並べる。鉄筋コンクリート柱5には所定高さ
位置にキャピタル6が先行して形成してあり、キャピタ
ル6,6間にPC板1を、その短辺縁をキャピタル6の
縁上に載置して配置し、4板のPC板1で囲まれた中央
部に3枚のPC板1を敷並べ配置する。In FIG. 2, on the square surface on which the floorboard having the reinforced concrete columns 5 built in at the four corners should be constructed, P
Lay out the C plates 1. The reinforced concrete column 5 is formed with a capital 6 in advance at a predetermined height position, and the PC board 1 is placed between the capitals 6 and 6, with its short side edge placed on the edge of the capital 6, Three PC boards 1 are laid side by side in a central portion surrounded by four PC boards 1.
【0008】次に、図3に示すごとく、敷並べたPC板
上に、2つのキャピタル6,6間には鉄筋コンクリート
柱5の両側に、それぞれ、2本、2本、1本計5本のア
ンボンドPC鋼線7を、また、床板面中央部に直交する
XY2方向に、それぞれ2本のアンボンドPC鋼線7を
配筋する。Next, as shown in FIG. 3, on the laid PC boards, between the two capitals 6 and 6, on both sides of the reinforced concrete column 5, 2, 2, 1 and 5 in total, respectively. Two unbonded PC steel wires 7 are arranged in each of the XY2 directions orthogonal to the center of the floor plate surface.
【0009】図4,(a),(b),(c),(d) に示すごとく、各
アンボンドPC鋼線7はライズをとり、中央部で下方
に、両端部では上方に位置せしめ配線する。PC板1の
長辺方向に配線したアンボンドPC鋼線7は剪断補強筋
3と並行して配筋する。中央部のX方向に配向するPC
板短辺方向のアンボンドPC鋼線7は図6のごとく、剪
断補強筋3の中(端部は上側位置(a) 、中央部は下側位
置(b) )を挿通して配筋する。As shown in FIGS. 4, (a), (b), (c), and (d), each unbonded PC steel wire 7 has a rise, and is positioned downward at the center and upward at both ends. To do. The unbonded PC steel wire 7 wired in the long side direction of the PC plate 1 is arranged in parallel with the shear reinforcing bar 3. PC oriented in the X direction at the center
As shown in FIG. 6, the unbonded PC steel wire 7 in the short side direction of the plate is arranged by inserting it through the shear reinforcing bar 3 (the end portion is at the upper position (a) and the central portion is at the lower position (b)).
【0010】この様に、直交する2方向にアンボンドP
C鋼線7を配筋した後、図5のごとく、その上面に格子
状の上端筋8を配筋し、コンクリート9を打設する。コ
ンクリート9の固化後、アンボンドPC鋼線7を緊張し
てプレストレスを導入する。As described above, the unbonded P
After arranging the C steel wire 7, as shown in FIG. 5, a lattice-shaped upper end bar 8 is laid on the upper surface and concrete 9 is placed. After the solidification of the concrete 9, the unbonded PC steel wire 7 is tensioned to introduce prestress.
【0011】[0011]
【発明の効果】この発明は以上の通りであり、この床板
は強度が高く、長スパン化を図ることができる。施工に
際しては、型枠工事、配筋の省力化ができ、支保工を削
減でき作業性を高めることができる。The present invention is as described above, and this floor board has high strength and can be made to have a long span. At the time of construction, it is possible to reduce the work of formwork and bar arrangement, reduce the support work and improve workability.
【図1】PC板の一部断面で示す斜視図である。FIG. 1 is a perspective view showing a partial cross section of a PC board.
【図2】PC板を敷並べた状態の平面図である。FIG. 2 is a plan view showing a state where PC boards are lined up.
【図3】アンボンドPC鋼線を配線した状態の平面図で
ある。FIG. 3 is a plan view showing a state in which unbonded PC steel wires are wired.
【図4】(a),(b),(c),(d) はそれぞれ図3の(a−
a)、(b−b)、(c−c)、(d−d)断面図であ
る。4 (a), (b), (c), and (d) are respectively (a-
It is a), (bb), (cc), (dd) sectional drawing.
【図5】上端筋を配筋、コンクリートを打設、プレスト
レスを導入してなった床板の図3(e−e)部分の断面
図である。FIG. 5 is a cross-sectional view of a portion of FIG. 3 (e-e) of a floorboard in which upper end bars are arranged, concrete is cast, and prestress is introduced.
【図6】(a) 、(b) はそれぞれ剪断補強筋とアンボンド
PC鋼線との関係位置を示す説明図である。6 (a) and 6 (b) are explanatory views showing the relational positions of the shear reinforcing bar and the unbonded PC steel wire, respectively.
1…PC板、2…鉄筋、3…波形の剪断補強筋、4…縦
筋、5…鉄筋コンクリート柱、6…キャピタル、7…ア
ンボンドPC鋼線、8…上端筋、9…コンクリート。DESCRIPTION OF SYMBOLS 1 ... PC board, 2 ... reinforcing bar, corrugated shear reinforcing bar, 4 ... longitudinal bar, 5 ... reinforced concrete column, 6 ... capital, 7 ... unbonded PC steel wire, 8 ... upper bar, 9 ... concrete.
Claims (1)
とその上面に打設したコンクリート層からなる床板にお
いて、プレキャストコンクリート板は上面に長辺方向に
沿って波形に折曲した剪断補強筋および、その波形頂部
に固着した縦筋が突設してあり、コンクリート層には直
交する2方向にアンボンドPC鋼線を配線し、プレスト
レスを導入してなることを特徴とする床板。1. A floorboard consisting of a precast concrete board that also serves as a formwork and a concrete layer cast on the top surface of the precast concrete board, wherein the precast concrete board is a shear reinforcing bar bent in a corrugated shape along the long side direction and its corrugated shape. A floorboard having vertical streaks protruding from the top, and unbonded PC steel wires wired in two directions perpendicular to the concrete layer to introduce prestress.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP31781291A JPH05148931A (en) | 1991-12-02 | 1991-12-02 | Floor plate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP31781291A JPH05148931A (en) | 1991-12-02 | 1991-12-02 | Floor plate |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH05148931A true JPH05148931A (en) | 1993-06-15 |
Family
ID=18092322
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP31781291A Pending JPH05148931A (en) | 1991-12-02 | 1991-12-02 | Floor plate |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH05148931A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100372573B1 (en) * | 1999-10-07 | 2003-02-17 | 한국건설기술연구원 | Precast concrete slab including thermal insulating layer and the method for the same |
JP2009287211A (en) * | 2008-05-27 | 2009-12-10 | Maxstone Kk | Flooring material for lining |
JP2010095862A (en) * | 2008-10-14 | 2010-04-30 | Tokyu Construction Co Ltd | Method for caluculating amount of prestress, and method for constructing concrete structure |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5625548A (en) * | 1979-08-07 | 1981-03-11 | Kajima Corp | Structure of beam in reinforced concrete |
JPS59177445A (en) * | 1983-03-29 | 1984-10-08 | 三井建設株式会社 | Semi-pc slab construction method and semi-pc panel used therein |
JPS61109849A (en) * | 1984-11-05 | 1986-05-28 | 株式会社フジタ | Construction of floor panel |
JPS62185940A (en) * | 1986-02-13 | 1987-08-14 | 株式会社フジタ | Construction method of flat slab |
JPS62189239A (en) * | 1986-02-14 | 1987-08-19 | 株式会社フジタ | Construction method of floor slab |
JPS6429553A (en) * | 1987-07-24 | 1989-01-31 | Shimizu Construction Co Ltd | Structure and method of construction of flat slab |
JPS6429552A (en) * | 1987-07-24 | 1989-01-31 | Shimizu Construction Co Ltd | Flat slab |
JPH01131745A (en) * | 1987-11-18 | 1989-05-24 | Shimizu Corp | Half precast concrete board |
JPH01226961A (en) * | 1988-03-04 | 1989-09-11 | Kajima Corp | Hollow slab |
JPH0369747A (en) * | 1989-08-10 | 1991-03-26 | Kurosawa Kensetsu Kk | Pc slab |
JPH03253646A (en) * | 1990-03-05 | 1991-11-12 | Shimizu Corp | Arrangement and structure of tendon |
-
1991
- 1991-12-02 JP JP31781291A patent/JPH05148931A/en active Pending
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5625548A (en) * | 1979-08-07 | 1981-03-11 | Kajima Corp | Structure of beam in reinforced concrete |
JPS59177445A (en) * | 1983-03-29 | 1984-10-08 | 三井建設株式会社 | Semi-pc slab construction method and semi-pc panel used therein |
JPS61109849A (en) * | 1984-11-05 | 1986-05-28 | 株式会社フジタ | Construction of floor panel |
JPS62185940A (en) * | 1986-02-13 | 1987-08-14 | 株式会社フジタ | Construction method of flat slab |
JPS62189239A (en) * | 1986-02-14 | 1987-08-19 | 株式会社フジタ | Construction method of floor slab |
JPS6429553A (en) * | 1987-07-24 | 1989-01-31 | Shimizu Construction Co Ltd | Structure and method of construction of flat slab |
JPS6429552A (en) * | 1987-07-24 | 1989-01-31 | Shimizu Construction Co Ltd | Flat slab |
JPH01131745A (en) * | 1987-11-18 | 1989-05-24 | Shimizu Corp | Half precast concrete board |
JPH01226961A (en) * | 1988-03-04 | 1989-09-11 | Kajima Corp | Hollow slab |
JPH0369747A (en) * | 1989-08-10 | 1991-03-26 | Kurosawa Kensetsu Kk | Pc slab |
JPH03253646A (en) * | 1990-03-05 | 1991-11-12 | Shimizu Corp | Arrangement and structure of tendon |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100372573B1 (en) * | 1999-10-07 | 2003-02-17 | 한국건설기술연구원 | Precast concrete slab including thermal insulating layer and the method for the same |
JP2009287211A (en) * | 2008-05-27 | 2009-12-10 | Maxstone Kk | Flooring material for lining |
JP4615584B2 (en) * | 2008-05-27 | 2011-01-19 | マックストン株式会社 | Lining flooring |
JP2010095862A (en) * | 2008-10-14 | 2010-04-30 | Tokyu Construction Co Ltd | Method for caluculating amount of prestress, and method for constructing concrete structure |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 19970729 |