JPH0628581Y2 - Precast concrete board for synthetic floor - Google Patents
Precast concrete board for synthetic floorInfo
- Publication number
- JPH0628581Y2 JPH0628581Y2 JP12293288U JP12293288U JPH0628581Y2 JP H0628581 Y2 JPH0628581 Y2 JP H0628581Y2 JP 12293288 U JP12293288 U JP 12293288U JP 12293288 U JP12293288 U JP 12293288U JP H0628581 Y2 JPH0628581 Y2 JP H0628581Y2
- Authority
- JP
- Japan
- Prior art keywords
- precast concrete
- floor
- synthetic floor
- concrete
- cast
- 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 - Lifetime
Links
Landscapes
- Panels For Use In Building Construction (AREA)
- Bridges Or Land Bridges (AREA)
- Rod-Shaped Construction Members (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は多階建築物の構築に際し、床の一部を構成し上
面に打設する場所打コンクリートと一体化させて合成床
を構成するための合成床用プレキャストコンクリート板
に関する。[Detailed Description of the Invention] (Industrial field of application) The present invention constructs a composite floor by constructing a multi-story building by integrating it with cast-in-place concrete that constitutes a part of the floor and is placed on the upper surface. For precast concrete boards for synthetic floors.
（従来の技術） 従来、合成床用のプレキャストコンクリート板には表面
に組鉄筋の一部を露出させたものや、長手方向に中空孔
を貫通開口させたものがあり、近年、第９図に示すよう
にコンクリート板本体１の長手方向に向けて、その下面
に突条２が一体成形され、その突条２に対応する上面に
凹溝３を形成し、断面がＵ字状をした小梁４を一体に有
するプレキャストコンクリート板が使用されつつある。(Prior Art) Conventionally, there are precast concrete boards for synthetic floors in which a part of the assembled rebar is exposed on the surface and in which hollow holes are opened through in the longitudinal direction. As shown in the drawing, a projection 2 is integrally formed on the lower surface of the concrete plate body 1 in the longitudinal direction, a groove 3 is formed on the upper surface corresponding to the projection 2, and a beam having a U-shaped cross section. Precast concrete boards having 4 in one are being used.
（考案が解決しようとする課題） このような従来のプレキャストコンクリート板の内、第
９図に示すように突条を有するものは、これを並べるこ
とにより多数の小梁４が大梁５間に掛け渡される構造と
なり、大きな荷重に耐え得る合成床が構築できる利点が
あるが、第１０図に示すように大梁５の上に、いわば小
梁４付きのプレキャスト板を掛け渡すこととなるため、
大梁上から床面６までの高さが大きくなり、その結果、
大梁５が床面下に大きく張り出す構造とならざるを得な
いという問題があった。(Problems to be solved by the invention) Among such conventional precast concrete boards, those having a ridge as shown in FIG. 9 are arranged so that a large number of small beams 4 are hung between the large beams 5. Although it has a structure to be passed over, there is an advantage that a synthetic floor capable of withstanding a large load can be constructed, but as shown in FIG. 10, since a precast plate with a beam 4 is suspended over the girder 5, as shown in FIG.
The height from the top of the girder to the floor 6 becomes large, and as a result,
There was a problem that the large beam 5 had to be a structure that greatly protruded below the floor surface.
本考案はこのような従来の問題を解決するとともに、架
設時の操作性が良く、しかも場所打コンクリートとの結
合度が高められて高耐力の合成床が構築できる合成床用
プレキャストコンクリート板の提供を目的としたもので
ある。The present invention solves such a conventional problem and provides a precast concrete plate for a synthetic floor, which has good operability at the time of erection, and has a high degree of connection with cast-in-place concrete to construct a high-resilience synthetic floor. It is intended for.
（課題を解決するための手段） 上述の如き従来の問題を解決し、所期の目的を達成する
ための本考案の合成床用プレキャストコンクリート板の
特徴は、下面に長手方向に向けて突出させた突条を一体
に有してなり、両端を大梁間に掛け渡して多数並設し、
上面に場所打コンクリートを打設して合成床を構成する
合成床用プレキャストコンクリート板において、両端に
前記突条のない平板部を有する端部を一体に備え、該架
設端部に上縁を上面側に突出させた端部補強鉄骨を埋設
させたことにある。(Means for Solving the Problem) The features of the precast concrete plate for a synthetic floor of the present invention for solving the above-mentioned conventional problems and achieving the intended purpose are that the lower surface is projected in the longitudinal direction. It has a single protruding ridge, and both ends are hung between the large beams and arranged side by side.
In a precast concrete board for a synthetic floor, which casts a cast-in-place concrete on the upper surface to form a synthetic floor, an end portion having flat plate portions without the projections at both ends is integrally provided, and the erected end portion has an upper edge on the upper surface. This is because the end reinforcing steel frame that protruded to the side was embedded.
（作用） この合成床用プレキャストコンクリート板は、その使用
に際し下面に突条のない板状部を有する架設端部を鉄筋
もしくは鉄骨コンクリート製または鉄骨製の大梁上に載
荷させて架設し、その上に鉄筋を組み、場所打コンクリ
ートを打設して合成床を構成させるためのものであり、
架設端部のせん断応力は主として端部補強鉄骨によって
得られ、この端部補強鉄骨を場所打コンクリートの補強
鉄筋と結合させることができるとともに、それ自体がコ
ッターとなり、場所打コンクリートとの一体化が強固に
なる。更に、端部補強鉄骨に孔をあければ吊り用フック
の掛け金としても使用できる。(Operation) When this precast concrete board for synthetic floors is used, the erection end having a plate-shaped section without a ridge on the lower surface is laid on a large beam made of rebar or steel-concrete or steel-framed, and then erected. It is for assembling a steel bar and pouring cast-in-place concrete to construct a synthetic floor.
The shear stress at the end of the erection is mainly obtained by the end reinforcing steel frame, and this end reinforcing steel frame can be combined with the reinforcing bar of cast-in-place concrete, and it itself becomes a cotter and is integrated with the cast-in-place concrete. Become stronger. Further, if a hole is made in the end reinforcing steel frame, it can be used as a latch for a hanging hook.
（実施例） 次に本考案の実施例を第１図〜第８図について説明す
る。(Embodiment) Next, an embodiment of the present invention will be described with reference to FIGS.
第１図〜第６図は本考案の第一実施例を示している。1 to 6 show a first embodiment of the present invention.
図中１０はコンクリート板本体である。このコンクリー
ト板本体１０は下面に長手方向に向けて二本の突条１
１、１１が一体に膨出成形されているとともに、上面に
は突条１１、１１に対応する部分に凹溝１２、１２が形
成され、断面が略Ｕ字状をした二本の小梁が一体に成形
されている。また、全体の肉厚内には補強鉄筋１３ａ、
１３ｂが埋設されているとともに、突条１１、１１内に
長手方向に向けてＰＣ鋼線１４、１４が挿通され、これ
によって長手方向にプレストレスが付与されている。In the figure, 10 is a concrete plate body. This concrete plate body 10 has two ridges 1 on the lower surface in the longitudinal direction.
1 and 11 are integrally bulged, and concave grooves 12 and 12 are formed on the upper surface in a portion corresponding to the ridges 11 and 11, and two beam beams having a substantially U-shaped cross section are formed. It is molded integrally. In addition, the reinforcing bar 13a,
13b is embedded and the PC steel wires 14 and 14 are inserted into the ridges 11 and 11 in the longitudinal direction, thereby prestressing the longitudinal direction.
コンクリート板本体１０の両端には上面に凹溝１２、１
２がなく、しかも下面の先端部に突条のない平板部１５
ａを有する架設端部１５が一体に成形されている。この
架設端部１５には、両突条１１、１１に対応する部分に
一対の端部補強鉄骨１６、１６が埋設されている。At both ends of the concrete plate body 10, concave grooves 12, 1 are provided on the upper surface.
The flat plate portion 15 which does not have 2 and has no protrusion on the lower end.
The erection end 15 having a is integrally formed. In the erected end portion 15, a pair of end reinforcing steel frames 16 and 16 are embedded in the portions corresponding to both the protrusions 11 and 11.
端部補強鉄骨１６は上縁１６ａが直線状をなしており、
下縁の後端側が突条１１内に埋設される広幅部１６ｂと
なっており、前端側が架設端部１５の平板部１５ａ内に
埋設される細幅部１６ｃとなっている。また下縁には断
面が逆Ｔ型形状になるように連続したフランジ部１６ｄ
を一体に有している。そしてこの端部補強鉄骨１６は、
その上縁１６ａ側を架設端部１５の上面に突出させて埋
設され、その突出部分に吊り用の孔１７が開口されてい
る。また、埋設された部分には鉄筋挿入孔が開口され、
コンクリート板本体１０内の幅方向の補強鉄筋１３ａが
貫通されているとともにフランジ部１６ｄには突条１１
内の長手方向の補強鉄筋１３ｂが溶接により固着されて
いる。The upper edge 16a of the end reinforcing steel frame 16 is linear,
The rear end side of the lower edge is a wide width portion 16b embedded in the protrusion 11, and the front end side is a narrow width portion 16c embedded in the flat plate portion 15a of the erected end portion 15. Further, the lower edge has a continuous flange portion 16d having an inverted T-shaped cross section.
Have in one. And this end reinforcement steel frame 16 is
The upper edge 16a side is projected and embedded in the upper surface of the erection end 15, and a hanging hole 17 is opened in the protruding portion. In addition, a reinforcing bar insertion hole is opened in the buried part,
The reinforcing steel bars 13a in the width direction in the concrete plate body 10 are penetrated and the flange 16d has a ridge 11a.
Reinforcing reinforcing bars 13b in the inner longitudinal direction are fixed by welding.
このように構成されるプレキャストコンクリート板の使
用に際しては、第６図に示すように鉄筋もしくは鉄骨コ
ンクリート製の大梁２０上に架設端部１５の平板部１５
ａを載せて多数並べて所要広さに架設し、その上に必要
な補強鉄筋を布設し、場所打コンクリート２１を打設
し、プレキャストコンクリート板と場所打コンクリート
２１とが一体に結合した構造の合成床となす。When using the precast concrete plate configured as described above, as shown in FIG. 6, the flat plate portion 15 of the erection end 15 is mounted on the large beam 20 made of reinforcing steel or steel frame concrete.
a is placed side by side and laid in a required size, reinforced reinforcing bars are laid on it, cast-in-place concrete 21 is placed, and the precast concrete plate and cast-in-place concrete 21 are integrally combined. Make a floor.
なお、図中２２は大梁２０から突出させた鉄筋である。Reference numeral 22 in the drawing denotes a reinforcing bar projected from the girder 20.
なお、上述の実施例では上面に凹溝を有する断面Ｕ字型
の小梁を有するプレキャストコンクリート板に実施した
場合を示しているが、この他、第７図、第８図に示すよ
うに下面に突出させた長手方向の凸条３１を有し、上面
を平らに成形したコンクリート板本体３０の端部に下面
の凸条３１のない平板部３２を突出させた架設端部３３
を設け、これに前述と同様の端部補強鉄骨１６を埋設し
てもよいものである。更に、図には示してないが架設さ
れる大梁はコンクリートの他、鉄骨であってもよいもの
である。In addition, in the above-mentioned embodiment, the case is shown in which the precast concrete plate having the cross-section U-shaped beam having the concave groove on the upper surface is used. In addition to this, as shown in FIG. 7 and FIG. A erection end 33 having a projecting plate 31 in the longitudinal direction and a flat plate portion 32 without the projecting line 31 on the lower surface protruding from the end of a concrete plate body 30 whose upper surface is molded flat.
The end reinforcing steel frame 16 similar to that described above may be embedded therein. Further, although not shown in the drawing, the girder to be erected may be steel frame instead of concrete.
（考案の効果） 上述したように本考案の合成床用プレキャストコンクリ
ート板は、下面に突条のない板状部を大梁上に載せて上
面に場所打コンクリートを打設して合成床が構成される
ため、大梁の下面と床の上面との間が短くなり、大梁の
突出量が少くなって、大きい室内空間が得られることと
なり、しかも架設端部のせん断応力は端部補強鉄骨によ
って必要充分なものが得られ、また、端部補強鉄骨が突
出しているため、これが場所打コンクリートとのコッタ
ーとなるとともに、場所打コンクリートの鉄筋との結合
も可能であり、合成床の一体性が高められ、高耐力の合
成床が構築できる。(Effects of the Invention) As described above, the precast concrete plate for a synthetic floor of the present invention has a plate-shaped portion having no ridge on the lower surface placed on a girder and cast concrete on the upper surface to form a synthetic floor. Therefore, the distance between the bottom of the girder and the top of the floor is shortened, the amount of protrusion of the girder is small, and a large indoor space can be obtained, and the shear stress at the erection end is necessary and sufficient due to the end reinforcing steel frame. In addition, since the end reinforcing steel frame is protruding, this becomes a cotter with cast-in-place concrete, and it is also possible to combine with cast-in-place concrete rebar, which enhances the integrity of the composite floor. , A synthetic floor with high yield strength can be constructed.
更に、端部補強鉄骨の吊りフック用の孔をあければ、吊
り金具としても使用でき、作業性が向上される等の効果
がある。Furthermore, if a hole for the hanging hook of the end reinforcing steel frame is opened, it can be used as a hanging metal fitting, and the workability is improved.
第１図は本考案の第一実施例の平面図、第２図は同正面
図、第３図は同側面図、第４図は第３図中のＩ−Ｉ線断
面図、第５図は第３図中のII−II線断面図、第６図は使
用状態の縦断面図、第７図は第二実施例の正面図、第８
図は同側面図、第９図は従来例の部分斜視図、第１０図
は使用状態の断面図である。 １０……コンクリート板本体、１１……突条、 １２……凹溝、１３……補強鉄筋、 １４……ＰＣ鋼線、１５……架設端部、 １６……端部補強鉄骨、１７……吊り用の孔、 ２０……大梁、２１……場所打コンクリート。FIG. 1 is a plan view of a first embodiment of the present invention, FIG. 2 is a front view of the same, FIG. 3 is a side view of the same, and FIG. 4 is a sectional view taken along the line I--I in FIG. Is a sectional view taken along the line II-II in FIG. 3, FIG. 6 is a longitudinal sectional view in use, FIG. 7 is a front view of the second embodiment, and FIG.
FIG. 9 is a side view of the same, FIG. 9 is a partial perspective view of a conventional example, and FIG. 10 is a sectional view of a state of use. 10 ... Concrete plate body, 11 ... Projection, 12 ... Recessed groove, 13 ... Reinforcing steel bar, 14 ... PC steel wire, 15 ... Construction end, 16 ... End reinforcing steel frame, 17 ... Holes for hanging, 20 ... Large beams, 21 ... Spot concrete.
Claims (1)
一体に有してなり、両端を大梁間に掛け渡して多数並設
し、上面に場所打コンクリートを打設して合成床を構成
する合成床用プレキャストコンクリート板において、両
端に前記リブのない平板部を有する端部を一体に備え、
該架設端部に上縁を上面側に突出させた端部補強鉄骨を
埋設させたことを特徴としてなる合成床用プレキャスト
コンクリート板。1. A synthetic floor is integrally formed with a rib projecting in the longitudinal direction on the lower surface, and both ends are spanned between large beams to be installed in parallel, and cast concrete is cast on the upper surface to form a composite floor. In the precast concrete plate for the synthetic floor to configure, integrally provided with an end having a flat plate portion without the ribs at both ends,
A precast concrete board for a synthetic floor, characterized in that an end-reinforcing steel frame having an upper edge protruding to the upper surface side is embedded in the erected end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12293288U JPH0628581Y2 (en) | 1988-09-20 | 1988-09-20 | Precast concrete board for synthetic floor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12293288U JPH0628581Y2 (en) | 1988-09-20 | 1988-09-20 | Precast concrete board for synthetic floor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0243313U JPH0243313U (en) | 1990-03-26 |
| JPH0628581Y2 true JPH0628581Y2 (en) | 1994-08-03 |
Family
ID=31371323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12293288U Expired - Lifetime JPH0628581Y2 (en) | 1988-09-20 | 1988-09-20 | Precast concrete board for synthetic floor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0628581Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0752260Y2 (en) * | 1991-04-10 | 1995-11-29 | 株式会社ピー・エス | Support structure of precast concrete members |
-
1988
- 1988-09-20 JP JP12293288U patent/JPH0628581Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0243313U (en) | 1990-03-26 |
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