JP2734929B2 - How to build a slab - Google Patents
How to build a slabInfo
- Publication number
- JP2734929B2 JP2734929B2 JP5066814A JP6681493A JP2734929B2 JP 2734929 B2 JP2734929 B2 JP 2734929B2 JP 5066814 A JP5066814 A JP 5066814A JP 6681493 A JP6681493 A JP 6681493A JP 2734929 B2 JP2734929 B2 JP 2734929B2
- Authority
- JP
- Japan
- Prior art keywords
- slab
- concrete
- small
- beams
- girder
- 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
- Bridges Or Land Bridges (AREA)
- Rod-Shaped Construction Members (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明はプレキャストコンクリ
ート床版を用いたスラブの構築方法に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of constructing a slab using a precast concrete slab.
【０００２】[0002]
【従来技術及び発明が解決しようとする課題】プレキャ
ストコンクリート製の床版を用いたスラブは従来、１方
向に小梁を持つ床版を対向する大梁間に架設することに
より構築されているが、鉛直荷重は小梁の方向に流れ、
床版の両端側の大梁に伝達されるため直交する２方向の
大梁には均等に分散せず、１方向の大梁に応力が集中す
る傾向がある。2. Description of the Related Art A slab using a slab made of precast concrete is conventionally constructed by laying a slab having small beams in one direction between large beams facing each other. The vertical load flows in the direction of the beam,
Since the beam is transmitted to the girder at both ends of the floor slab, the stress is not uniformly distributed to the girder in two orthogonal directions, and the stress tends to concentrate on the girder in one direction.
【０００３】また床版は小梁方向に直交する方向の面内
剛性が乏しいことから、水平荷重もその方向の大梁の一
部に集中させ易く、単独では水平荷重を大梁へ伝達する
ことが難しいため、水平荷重を大梁に分散して伝達する
には通常、床版上にコンクリートを打設し、両者を一体
化することによりその方向の面内剛性を確保することが
不可欠である。[0003] Further, since the floor slab has poor in-plane rigidity in a direction orthogonal to the direction of the small beam, it is easy to concentrate the horizontal load on a part of the large beam in that direction, and it is difficult to transmit the horizontal load to the large beam alone. Therefore, in order to transmit the horizontal load in a distributed manner to the girder, it is usually indispensable to cast concrete on the floor slab and secure the in-plane rigidity in that direction by integrating the two.
【０００４】この発明はプレキャストコンクリート床版
を用いたスラブの上記問題に着目してなされたもので、
鉛直荷重と水平荷重を大梁に分散して伝達するスラブの
構築方法を提案しようとするものである。The present invention has been made in view of the above problem of a slab using a precast concrete slab.
An object of the present invention is to propose a method of constructing a slab that transmits a vertical load and a horizontal load by dispersing them to a girder.
【０００５】[0005]
【課題を解決するための手段】本発明では２方向の大梁
間にプレキャストコンクリート製の小梁を２方向に架設
して格子梁を形成し、大梁で囲まれた平面を平面上、２
方向に均等に区分し、この区分された最小単位の平面上
にプレキャストコンクリート製の床版を敷設し、床版の
周囲を大梁と小梁に接続することにより床版上へのコン
クリートの打設を要することなく鉛直荷重と水平荷重を
大梁に分散して伝達する。According to the present invention, a grid beam is formed by laying a precast concrete beam in two directions between two beams in two directions to form a lattice beam.
Casting concrete on the floor slab by laying precast concrete slabs on the plane of the smallest unit that is divided evenly in the direction and connecting the periphery of the slab with large beams and small beams The vertical load and the horizontal load are distributed and transmitted to the girder without requiring.
【０００６】小梁上で隣接する床版間にはコンクリート
が充填され、床版は互いに一体化しながら小梁と大梁に
支持される。Concrete is filled between adjacent floor slabs on the beam, and the floor slabs are supported by the beam and the girder while being integrated with each other.
【０００７】２方向の大梁で囲まれた平面が小梁によっ
て２方向に均等に区分され、その単位平面上に床版が敷
設されることにより各床版が四辺で支持され、鉛直荷重
は直接，または小梁を通じて２方向の大梁に均等に分散
して伝達される。A plane surrounded by two girders is equally divided in two directions by small beams, and a floor slab is laid on the unit plane so that each floor slab is supported by four sides, and a vertical load is directly applied. , Or through the small beam, the light is evenly distributed and transmitted to the large beam in two directions.
【０００８】隣接する床版間に充填されるコンクリート
によって各床版の周囲に小梁や大梁が接続し、床版が小
梁と大梁に一体化することにより床版の面内剛性が高ま
り、水平荷重も小梁を経て２方向の大梁に分散して伝達
される。[0008] Small beams and girder beams are connected around each slab by concrete filled between adjacent slabs, and the in-plane rigidity of the slab is increased by integrating the slab with the slab and the girder. The horizontal load is also dispersed and transmitted to the large beam in two directions via the small beam.
【０００９】床版が小梁と大梁に支持されると同時に、
小梁上に充填されるコンクリートによって互いに一体化
することにより荷重の大梁への伝達が可能になるが、更
に床版上にコンクリートが打設され、両者が一体化する
ことによりスラブの品質の向上が図られる。[0009] At the same time that the floor slab is supported by the beams and girders,
By integrating the concrete on the small beams, the load can be transmitted to the large beams by integrating them with each other. However, concrete is cast on the floor slab and the two are integrated to improve the quality of the slab. Is achieved.
【００１０】[0010]
【実施例】以下本発明を一実施例を示す図面に基づいて
説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings showing one embodiment.
【００１１】この発明は図１に示すように２方向の大梁
１，１間にプレキャストコンクリート製の小梁２，２を
２方向に架設し、大梁１，１で囲まれた平面を平面上、
２方向に均等に複数個の平面に区分し、この区分された
各最小単位の平面上にプレキャストコンクリート製の床
版３を敷設し、小梁２上の隣接する床版３，３間にコン
クリート４を充填して床版３，３を互いに一体化し、ス
ラブ６を構築する方法である。According to the present invention, as shown in FIG. 1, small beams 2, 2 made of precast concrete are erected in two directions between large beams 1, 1 in two directions, and a plane surrounded by the large beams 1, 1 is placed on a plane.
It is equally divided into a plurality of planes in two directions, a precast concrete floor slab 3 is laid on each of the divided minimum planes, and concrete is placed between the adjacent floor slabs 3 on the beam 2. In this method, the floor slabs 3 and 3 are integrated with each other by filling the slab 6 with the slab 6.
【００１２】図１は大梁１，１で囲まれた平面を４分割
した場合であるが、いずれか一方（ｙ方向）の小梁２は
対向する大梁１，１間に跨る長さを持ち、その中間部に
は直交する方向（ｘ方向）の小梁２が接続する端部21が
形成される。FIG. 1 shows a case where a plane surrounded by the girders 1 and 1 is divided into four parts. One of the small girders 2 (in the y direction) has a length extending between the opposing girders 1 and 1, An end portion 21 is formed in the middle portion to which the small beam 2 in the orthogonal direction (x direction) is connected.
【００１３】ｙ方向の小梁２は図１のａ−ａ線断面図で
ある図２に示すように各大梁１の側面に突設された受け
部11に支持され、ｘ方向の小梁２は同様に図１のｂ−ｂ
線断面図である図３に示すように大梁１の受け部11とｙ
方向の小梁２の端部21に形成された受け部211 に支持さ
れる。As shown in FIG. 2, which is a sectional view taken along line aa of FIG. 1, the small beam 2 in the y direction is supported by a receiving portion 11 protruding from the side surface of each large beam 1, and the small beam 2 in the x direction. Is similarly bb in FIG.
As shown in the sectional view of FIG.
It is supported by a receiving part 211 formed at the end 21 of the small beam 2 in the direction.
【００１４】ｙ方向の小梁２は図２の一部拡大図である
図５に示すようにその端部に明けられた挿通孔22内に大
梁１の受け部11に突設されたコッター12が差し込まれる
ことにより、ｘ方向の小梁２は同様に挿通孔22内に小梁
２の受け部211 に突設されるコッターと、図３の一部拡
大図である図６及び図７に示すように大梁１のコッター
12が差し込まれることによりそれぞれ設置時にずれ止め
される。挿通孔22内には設置後に充填材が充填される。
ｘ方向の小梁２の内部には図示するようにｙ方向の小梁
２を貫通するPC鋼材５が配置され、PC鋼材５が緊張さ
れ、プレストレスが与えられることにより小梁２はｙ方
向の小梁２に接続し、一体化する。PC鋼材５には防錆処
理が施される。As shown in FIG. 5, which is a partially enlarged view of FIG. 2, the small beam 2 in the y direction is provided with a cotter 12 projecting from the receiving portion 11 of the large beam 1 in an insertion hole 22 formed at the end thereof. Is inserted, the small beam 2 in the x direction is similarly inserted into the insertion hole 22 at the receiving portion 211 of the small beam 2 and a cotter is provided in FIG. 6 and FIG. 7, which are partially enlarged views of FIG. Cotter of girder 1 as shown
12 prevents slippage during installation. The filler is filled in the insertion hole 22 after the installation.
As shown, a PC steel material 5 penetrating the small beam 2 in the y direction is disposed inside the small beam 2 in the x direction, and the small steel beam 2 is tensioned by the prestress and applied to the small beam 2 in the y direction. And integrated with the small beam 2. Rust prevention treatment is applied to the PC steel 5.
【００１５】床版３は大梁１と小梁２に囲まれた最小単
位の平面より大きい面積を持ち、図１のｃ−ｃ線断面図
である図４に示すように周囲が大梁１と小梁２の天端に
載置されることにより鉛直荷重を周囲の大梁１と小梁２
に均等に分散して負担させる。小梁２が負担する荷重は
それが接続する大梁１に伝達される。The floor slab 3 has an area larger than the plane of the minimum unit surrounded by the girder 1 and the girder 2, and the periphery thereof is smaller than that of the girder 1 as shown in FIG. By placing the beam on the top end of the beam 2, the vertical load is applied to the surrounding large beam 1 and small beam 2.
Evenly distribute the burden. The load borne by the beam 2 is transmitted to the beam 1 to which it is connected.
【００１６】コンクリート４は図１，図４に示すように
大梁１上と小梁２上の、隣接する床版３，３間に充填さ
れ、床版３，３の連続性を確保し、床版３，３を互いに
一体化する。床版３，３がコンクリート４によって互い
に一体化しながら大梁１と小梁２に接続し、大梁１と小
梁２とも一体化することにより床版３の面内剛性が上が
り、床版３に作用する水平荷重は大梁１や小梁２に伝達
される。床版３，３間のコンクリート４は図５，図６、
及び図４の一部拡大図である図８，図９に示すように大
梁１と小梁２の天端から突出したスターラップ13，23に
よってそれぞれに一体化し、水平荷重の大梁１や小梁２
への伝達を可能にする。The concrete 4 is filled between the adjacent floor slabs 3 and 3 on the girders 1 and the small beams 2 as shown in FIG. 1 and FIG. The plates 3, 3 are integrated with each other. The floor slabs 3 and 3 are connected to the girder 1 and the girder 2 while being integrated with each other by the concrete 4. By integrating the girder 1 and the girder 2, the in-plane rigidity of the floor slab 3 is increased and acts on the floor slab 3. The horizontal load is transmitted to the large beam 1 and the small beam 2. The concrete 4 between the floor slabs 3 and 3 is shown in Figs.
As shown in FIGS. 8 and 9, which are partially enlarged views of FIG. 4, the beams 1 and 2 are integrated by stirrups 13 and 23 projecting from the top ends of the beams 1 and 2, respectively. 2
Communication to
【００１７】実施例では小梁２の、鉛直荷重に対する抵
抗力と剛性を上げるために、ｘ方向の小梁２の他にｙ方
向の小梁２の内部にもPC鋼材５を配置し、小梁２にプレ
ストレスを与えている。ｙ方向の小梁２は大梁１，１間
に跨る長さを持つことから、プレテンションによって、
ｘ方向の小梁２は現場で大梁１とｙ方向の小梁２間に架
設されることから、ポストテンションによってプレスト
レスが与えられる。ｘ方向の小梁２内のPC鋼材５は図３
に示すように下に凸に配置されることにより小梁２に予
め上向きの応力を発生させ、このｘ方向の小梁２に、ｙ
方向の小梁２に生ずる応力の一部を負担させる働きを持
つ。In the embodiment, in order to increase the resistance and rigidity of the small beam 2 against the vertical load, a PC steel material 5 is arranged inside the small beam 2 in the y direction in addition to the small beam 2 in the x direction. The beam 2 is prestressed. Since the small beam 2 in the y direction has a length straddling between the large beams 1 and 1, by pretension,
Since the small beam 2 in the x direction is erected between the large beam 1 and the small beam 2 in the y direction at the site, prestress is given by the post tension. The PC steel material 5 in the beam 2 in the x direction is shown in FIG.
As shown in the figure, an upward stress is generated in advance in the small beam 2 by disposing the small beam 2 in the x direction.
It has a function to bear a part of the stress generated in the small beam 2 in the direction.
【００１８】図10〜図12は隣接する床版３，３間と同時
に、床版３上にもコンクリート４を打設することにより
スラブ６の面内剛性を上げ、その品質を高めた場合の実
施例を示したものである。コンクリート４は床版３上へ
の配筋後に打設される。図10，図11，図12は図１のａ−
ａ線，ｂ−ｂ線，ｃ−ｃ線断面図に対応している。FIGS. 10 to 12 show a case where concrete 4 is poured on the floor slab 3 at the same time between the adjacent floor slabs 3 to increase the in-plane rigidity of the slab 6 and improve the quality thereof. It shows an example. The concrete 4 is poured after the reinforcing bars are arranged on the floor slab 3. FIGS. 10, 11, and 12 show a-
This corresponds to a sectional view taken along line a, line bb, and line cc.
【００１９】図13，図14は２方向の大梁１，１で囲まれ
た平面を９分割し、床版３上にもコンクリート４を打設
した場合の実施例を示したものである。この場合も施工
は４分割の場合と同様に行われるが、実施例では大梁
１，１間に跨る長さを持つｙ方向の小梁２に、大梁１に
接続するｘ方向の小梁２を予め一体化し、現場作業を簡
略化している。FIGS. 13 and 14 show an embodiment in which the plane surrounded by the girders 1 and 2 in two directions is divided into nine parts, and concrete 4 is also cast on the floor slab 3. Also in this case, the construction is performed in the same manner as in the case of the four divisions. In the embodiment, the small beam 2 in the x direction connected to the large beam 1 is attached to the small beam 2 in the y direction having a length straddling between the large beams 1. It is integrated in advance to simplify on-site work.
【００２０】[0020]
【発明の効果】２方向の大梁間にプレキャストコンクリ
ート製の小梁を２方向に架設し、大梁で囲まれた平面を
平面上、２方向に均等に区分し、この区分された最小単
位の平面上にプレキャストコンクリート製の床版を敷設
し、床版の四辺を大梁と小梁に支持させたものであるた
め鉛直荷重を２方向の大梁に均等に分散して伝達するこ
とができる。According to the present invention, a small beam made of precast concrete is erected in two directions between girders in two directions, and a plane surrounded by the girders is equally divided in two directions on a plane, and the divided minimum unit plane A floor slab made of precast concrete is laid on the slab, and four sides of the slab are supported by girders and small beams, so that the vertical load can be evenly distributed and transmitted to the girders in two directions.
【００２１】また小梁上で隣接する床版間にコンクリー
トを充填し、床版を互いに一体化しながら各床版の周囲
を小梁と大梁に接続し、両者を一体化しているため、床
版上へのコンクリートの打設を要することなく水平荷重
も２方向の大梁に分散して伝達することができる。Also, concrete is filled between the adjacent slabs on the beams, and the peripheries of the slabs are connected to the beams and the girders while the slabs are integrated with each other. The horizontal load can also be dispersed and transmitted to the girder in two directions without the need to cast concrete on top.
【００２２】更に床版上にコンクリートが打設されるこ
とによりスラブの品質を高めることができる。Further, the quality of the slab can be improved by casting concrete on the floor slab.
【図１】本発明の実施例を示した平面図である。FIG. 1 is a plan view showing an embodiment of the present invention.
【図２】図１のａ−ａ線断面図である。FIG. 2 is a sectional view taken along line aa of FIG.
【図３】図１のｂ−ｂ線断面図である。FIG. 3 is a sectional view taken along line bb of FIG. 1;
【図４】図１のｃ−ｃ線断面図である。FIG. 4 is a sectional view taken along line c-c in FIG. 1;
【図５】図２の大梁部分の拡大図である。FIG. 5 is an enlarged view of a girder portion of FIG. 2;
【図６】図３の大梁部分の拡大図である。FIG. 6 is an enlarged view of a girder part of FIG. 3;
【図７】図６の平面図である。FIG. 7 is a plan view of FIG. 6;
【図８】図４の大梁部分の拡大図である。FIG. 8 is an enlarged view of a girder part of FIG. 4;
【図９】図４の小梁部分の拡大図である。FIG. 9 is an enlarged view of a small beam portion in FIG. 4;
【図１０】床版上までコンクリートを打設した場合の図
１のａ−ａ線断面図である。FIG. 10 is a cross-sectional view taken along line aa of FIG. 1 in a case where concrete is cast on the floor slab.
【図１１】床版上までコンクリートを打設した場合の図
１のｂ−ｂ線断面図である。FIG. 11 is a sectional view taken along the line bb in FIG. 1 when concrete is cast on the floor slab.
【図１２】床版上までコンクリートを打設した場合の図
１のｃ−ｃ線断面図である。FIG. 12 is a cross-sectional view taken along the line cc of FIG. 1 when concrete is cast on the floor slab.
【図１３】大梁で囲まれた平面を９分割した場合の実施
例を示した平面図である。FIG. 13 is a plan view showing an embodiment in which a plane surrounded by girders is divided into nine parts.
【図１４】図13のｄ−ｄ線断面図である。FIG. 14 is a sectional view taken along line dd of FIG. 13;
１……大梁、11……受け部、12……コッター、13……ス
ターラップ、２……小梁、21……端部、211 ……受け
部、22……挿通孔、23……スターラップ、３……床版、
４……コンクリート、５……PC鋼材、６……スラブ。1 ... giant beam, 11 ... receiving part, 12 ... cotter, 13 ... stirrup, 2 ... small beam, 21 ... end part, 211 ... receiving part, 22 ... insertion hole, 23 ... star Lap, 3 ... floor slab,
4 ... concrete, 5 ... PC steel, 6 ... slab.
Claims (2)
ート製の小梁を２方向に架設し、大梁で囲まれた平面を
平面上、２方向に均等に複数個の平面に区分し、この区
分された各最小単位の平面上にプレキャストコンクリー
ト製の床版を敷設した後、小梁上の隣接する床版間にコ
ンクリートを充填して床版を互いに一体化するスラブの
構築方法。A small beam made of precast concrete is erected in two directions between girders in two directions, and a plane surrounded by the girders is equally divided into a plurality of planes in two directions on a plane. A method of constructing a slab in which after precast concrete slabs are laid on the plane of each minimum unit, concrete is filled between adjacent slabs on the small beams and the slabs are integrated with each other.
と床版上にコンクリートを打設して床版とコンクリート
を一体化する請求項１記載のスラブの構築方法。2. The method of constructing a slab according to claim 1, wherein after laying the slab, concrete is cast between adjacent slabs on the beams and on the slab to integrate the slab with the concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5066814A JP2734929B2 (en) | 1993-03-25 | 1993-03-25 | How to build a slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5066814A JP2734929B2 (en) | 1993-03-25 | 1993-03-25 | How to build a slab |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06280338A JPH06280338A (en) | 1994-10-04 |
| JP2734929B2 true JP2734929B2 (en) | 1998-04-02 |
Family
ID=13326705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5066814A Expired - Lifetime JP2734929B2 (en) | 1993-03-25 | 1993-03-25 | How to build a slab |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2734929B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006299693A (en) * | 2005-04-22 | 2006-11-02 | East Japan Railway Co | Beam-column connecting method and beam-column structure |
| JP7341051B2 (en) * | 2019-12-26 | 2023-09-08 | 株式会社デンソー | slab structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6268947A (en) * | 1985-09-24 | 1987-03-30 | 株式会社フジタ | Construction of small beam and floor slab |
| JPH0525876A (en) * | 1991-07-23 | 1993-02-02 | Asahi Chem Ind Co Ltd | Fitting structure of floor panel |
-
1993
- 1993-03-25 JP JP5066814A patent/JP2734929B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6268947A (en) * | 1985-09-24 | 1987-03-30 | 株式会社フジタ | Construction of small beam and floor slab |
| JPH0525876A (en) * | 1991-07-23 | 1993-02-02 | Asahi Chem Ind Co Ltd | Fitting structure of floor panel |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06280338A (en) | 1994-10-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2007254974A (en) | Prestressed concrete floor slab bridge of composite structure of steel/concrete using shape steel, and construction method of the prestressed concrete floor slab bridge | |
| JP2734929B2 (en) | How to build a slab | |
| JP2021085150A (en) | Pc foundation structure and construction method thereof | |
| JP2020056209A (en) | Composite column, bridge pier using the same, and construction method | |
| JP2000038797A (en) | Semi-precast floor slab | |
| JPH04128424A (en) | Method for constructing anchor supporting beam | |
| KR102042090B1 (en) | Abutment integrated with H-pile in integral abutment bridge, and Constructing method thereof | |
| JP2000038798A (en) | Semi-precast floor slab | |
| JP2836441B2 (en) | Flat slab construction without shoring | |
| JP2774066B2 (en) | Floor slab made of PC version | |
| JP2853528B2 (en) | Construction method of composite floorboard | |
| JP3026058B2 (en) | PC composite floor slab | |
| JP2674470B2 (en) | Floor frame structure by combining precast members | |
| JP3245824B2 (en) | Column and beam joint structure of RC structure and its construction method | |
| JP2734931B2 (en) | Floor slab made of PC version | |
| JP2568987B2 (en) | Support member for reinforcing steel assembly and bridge construction method using the same | |
| JP3245106B2 (en) | Steel composite composite bridge using precast prestressed concrete slab | |
| JPH04302607A (en) | Composite girder and girder part of bridge beam | |
| JP2004137843A (en) | Join structure of column and beam | |
| KR100402659B1 (en) | Grid precast concrete beam | |
| JP2751836B2 (en) | PC version for floor slab formwork | |
| JP3465205B2 (en) | How to build intersecting beams | |
| JP2958239B2 (en) | Joint members at the joints between columns and beams | |
| JPS62189239A (en) | Construction method of floor slab | |
| JPH0650014B2 (en) | Reinforcing structure of reinforced concrete cylinders |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19971202 |