JP2001132149A - Precast concrete floorboard for viaduct, viaduct and construction method - Google Patents
Precast concrete floorboard for viaduct, viaduct and construction methodInfo
- Publication number
- JP2001132149A JP2001132149A JP31824999A JP31824999A JP2001132149A JP 2001132149 A JP2001132149 A JP 2001132149A JP 31824999 A JP31824999 A JP 31824999A JP 31824999 A JP31824999 A JP 31824999A JP 2001132149 A JP2001132149 A JP 2001132149A
- Authority
- JP
- Japan
- Prior art keywords
- bars
- concrete
- precast concrete
- bar
- plate
- 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
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- Bridges Or Land Bridges (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は高架橋用のプレキャ
ストコンクリート床板、高架橋およびその構築方法に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a precast concrete floor plate for viaducts, viaducts, and a method for constructing the viaducts.
【0002】[0002]
【従来の技術】道路橋などの高架橋は、図14の(1)
および(2)に示すように、現場打ちコンクリート25
や、いわゆるフルプレキャストコンクリート床板26を
橋桁に敷設して構築していた。2. Description of the Related Art Viaducts such as road bridges are shown in FIG.
And (2) as shown in FIG.
In addition, a so-called full precast concrete floor plate 26 is laid on a bridge girder and constructed.
【0003】[0003]
【発明が解決しようとする課題】しかし、現場打ちコン
クリートの高架橋は、そのための足場、型枠および支保
工などを必要とするため施工が煩雑でかつ手間がかかっ
た。一方、フルプレキャストコンクリート板は重いため
現場への運搬および取り扱いが困難であるとともに、フ
ルプレキャストコンクリート板同士の接合部における主
鉄筋を側方から入れなければならないという問題があっ
た。However, the viaduct of cast-in-place concrete requires a scaffold, a formwork and a shoring for the viaduct, and the construction is complicated and troublesome. On the other hand, a full precast concrete plate is heavy, so that it is difficult to transport and handle it on site, and there is a problem that a main reinforcing bar at a joint between the full precast concrete plates must be inserted from the side.
【0004】本発明はこれらの問題に鑑みてなされたも
のであり、その目的は、耐久性が良く、安全かつ容易に
構築できる高架橋用のプレキャストコンクリート床板、
高架橋およびその構築方法を提供することである。[0004] The present invention has been made in view of these problems, and an object of the present invention is to provide a precast concrete floor plate for viaducts having good durability, which can be constructed safely and easily,
An object of the present invention is to provide a vial and a method for constructing the same.
【0005】[0005]
【課題を解決するための手段】以上の課題を解決するた
め手段は、請求項1の発明が、トラス筋の上部が突出し
たコンクリート板の長辺方向の一側部にUターン状の連
結筋が適宜間隔ごとに突設され、前記コンクリート板の
他側部に突設された接合段部の上面には折曲筋が設けら
れ、該折曲筋の先端部が起立したことを特徴とする。According to a first aspect of the present invention, a U-turn connecting bar is provided on one side in the long side direction of a concrete plate from which an upper portion of a truss bar projects. Are provided at appropriate intervals, a bending line is provided on the upper surface of the joining step portion protruding from the other side of the concrete plate, and a tip portion of the bending line stands up. .
【0006】請求項1の発明によれば、プレキャストコ
ンクリート床板を橋桁上に敷設した場合、主鉄筋を連結
筋内に簡単に配筋することができる。According to the first aspect of the present invention, when the precast concrete slab is laid on the bridge girder, the main reinforcing bar can be easily arranged in the connecting bar.
【0007】また請求項2の発明が、請求項1におい
て、コンクリート板の短辺方向の両側部には側板が折り
曲げ形成され、該側板にトラス筋を介して型板が適宜間
隔をもって設けられたことを特徴とする。According to a second aspect of the present invention, in the first aspect, side plates are bent at both side portions in the short side direction of the concrete plate, and template plates are provided on the side plates via truss bars at appropriate intervals. It is characterized by the following.
【0008】請求項2の発明によれば、側板と型板との
間隙部にコンクリートを打設するだけで壁高欄を構築す
ることができる。According to the second aspect of the present invention, it is possible to construct a wall railing simply by pouring concrete in a gap between the side plate and the template.
【0009】また請求項3の発明が、トラス筋の上部が
突出したコンクリート板の短辺方向の両側部には側板が
折り曲げ形成され、該側板にトラス筋を介して型板が適
宜間隔をもって設けられたプレキャストコンクリート床
板が、長辺方向の側部同士を突き合わせて橋桁上に敷設
され、これらのプレキャストコンクリート床板の上面お
よび、側板と型板との間隙部にコンクリートが打設され
たことを特徴とする。According to a third aspect of the present invention, there is provided a concrete plate in which an upper portion of a truss is projected, side plates are formed on both sides in a short side direction of the concrete plate, and a template is provided on the side plate via a truss bar at appropriate intervals. The precast concrete slabs were laid on the bridge girder with the long sides facing each other, and concrete was cast on the upper surface of these precast concrete slabs and the gap between the side plates and the template. And
【0010】請求項3の発明によれば、トラス筋を配筋
したプレキャストコンクリート床板により耐久性のある
高架橋を構築することができる。[0010] According to the third aspect of the present invention, a durable viaduct can be constructed by the precast concrete slab in which the truss bars are arranged.
【0011】また請求項4の発明が、コンクリート板の
長辺方向の一側部にはUターン状の連結筋を適宜間隔ご
とに突設し、かつ他側部の接合段部には先端部が起立し
た折曲筋を設けたプレキャストコンクリート床板を、橋
桁上に複数敷設してこれらの長辺方向の接合部に連結筋
と折曲筋とを交互に配筋し、これらの連結筋と折曲筋と
の間に形成された隙間から連結筋内に主鉄筋を配筋する
とともに、折曲筋の先端部を折り曲げて連結筋とによる
ループを形成した後、これらのプレキャストコンクリー
ト床板上にコンクリートを打設することを特徴とする。According to a fourth aspect of the present invention, a U-turn connecting bar is protruded from one side of the long side of the concrete plate at an appropriate interval, and a connecting step on the other side is provided with a tip end. A plurality of precast concrete slabs with bent streaks are laid on the bridge girder, and connecting bars and bending bars are alternately arranged at the joints in the long side direction, and these connecting bars are folded. After arranging the main reinforcing bars in the connecting bars from the gaps formed between them and bending the tips of the bending bars to form loops with the connecting bars, concrete is placed on these precast concrete floor boards. Is characterized by being cast.
【0012】請求項4の発明によれば、主鉄筋を連結筋
内へ簡単に配筋することができるとともに、側板と型板
との間隙部にコンクリートを打設するだけで壁高欄を構
築することができる。According to the fourth aspect of the present invention, it is possible to easily arrange the main reinforcing bars in the connecting bars, and to construct the wall railing by merely placing concrete in the gap between the side plate and the template. be able to.
【0013】また請求項5の発明が、コンクリート板の
短辺方向の両側部には、トラス筋を介して型板を備えた
側板が折り曲げ形成され、コンクリート板の長辺方向の
一側部にはUターン状の連結筋を適宜間隔ごとに突設
し、かつ他側部の接合段部には先端部が起立した折曲筋
を設けたプレキャストコンクリート床板を、橋桁上に複
数敷設してこれらの長辺方向の接合部に連結筋と折曲筋
とを交互に配筋し、これらの連結筋と折曲筋との隙間か
ら連結筋内に主鉄筋を配筋するとともに、折曲筋の先端
部を折り曲げて連結筋とによるループを形成した後、側
板と型板との間隙部および、プレキャストコンクリート
床板上にコンクリートを打設することを特徴とする。According to a fifth aspect of the present invention, a side plate having a template is bent and formed on both sides in the short side direction of the concrete plate via a truss bar. U-shaped connecting bars are projected at appropriate intervals, and a plurality of precast concrete slabs are provided on the bridge girder. The connecting bars and the bending bars are arranged alternately at the joints in the long side direction of the joint, and the main reinforcing bars are arranged in the connecting bars from the gap between these connecting bars and the bending bars. The method is characterized in that, after forming the loop by the connecting bar by bending the tip, concrete is poured into the gap between the side plate and the template and the precast concrete floor plate.
【0014】請求項5の発明によれば、主鉄筋を連結筋
内へ簡単に配筋することができるので、プレキャストコ
ンクリート床板同士を簡単に接合することができる。According to the fifth aspect of the present invention, since the main reinforcing bars can be easily arranged in the connecting bars, the precast concrete slabs can be easily joined.
【0015】また請求項6の発明が、請求項4または5
おいて、主鉄筋は連結筋内に予め配筋されていることを
特徴とする。The invention of claim 6 is the invention of claim 4 or 5.
Here, the main reinforcing bars are arranged in advance in the connecting bars.
【0016】請求項6の発明によれば、主鉄筋の連結筋
内への配筋作業を省略することができる。According to the sixth aspect of the present invention, the work of arranging the main reinforcing bars in the connecting bars can be omitted.
【0017】[0017]
【発明の実施の形態】以下、本発明の高架橋用のプレキ
ャストコンクリート床板、高架橋およびその構築方法に
ついて説明する。図1は第1の実施の形態のプレキャス
トコンクリート床板の平面図、図2は図1のA−A線断
面図、図3は同B−B線断面図である。BEST MODE FOR CARRYING OUT THE INVENTION The precast concrete floor plate for viaduct, viaduct, and method for constructing the viaduct of the present invention will be described below. FIG. 1 is a plan view of a precast concrete floor panel of the first embodiment, FIG. 2 is a sectional view taken along line AA of FIG. 1, and FIG. 3 is a sectional view taken along line BB of FIG.
【0018】プレキャストコンクリート床板1はコンク
リート板2と、長辺方向に沿って適宜間隔ごとに配筋さ
れた4本のトラス筋3と、長辺方向の一側部に突設され
た連結筋4と、他側部に突出された折曲筋5とから構成
され、前記トラス筋3の上部がコンクリート板2の上面
から突出している。The precast concrete floor plate 1 includes a concrete plate 2, four truss bars 3 arranged at appropriate intervals along the long side direction, and connecting bars 4 protruding from one side in the long side direction. And a bending line 5 protruding to the other side. The upper part of the truss line 3 protrudes from the upper surface of the concrete plate 2.
【0019】トラス筋3は、三角形状に配置された一本
の上端筋6と二本の下端筋7とが波形のラチス筋8で接
合した三角トラスである。これは三角トラスに限らず、
一本の上端筋と一本の下端筋とがラチス筋で接合された
トラス筋(図示せず)であってもよい。The truss bar 3 is a triangular truss in which one upper bar 6 and two lower bars 7 arranged in a triangular shape are joined by a lattice lattice 8 having a waveform. This is not limited to triangular truss,
A truss bar (not shown) in which one upper bar and one lower bar are joined by a lattice bar may be used.
【0020】またコンクリート板2の長辺方向の一側部
に突出した連結筋4はUターン状に折り曲げ形成され、
前記折曲筋5とずれた位置に設けられている。一方、コ
ンクリート板2の長辺方向の他側部には接合段部9が突
出され、この上面に前記他側部から突設した折曲筋5が
配筋され、その先端部がL字状に折り曲げられている。
この先端部は直角に折り曲げ形成されているが、上側に
起立した状態であれば折り曲げ角度には限定されない。
また接合段部9は断面凹凸に形成され、凸部10には折
曲筋5の下部が埋設されている。またコンクリート板2
の適宜箇所には橋桁のスタッドボルトが貫入される位置
決め孔11が開口されている。A connecting bar 4 projecting from one side of the long side of the concrete plate 2 is bent and formed in a U-turn shape.
It is provided at a position shifted from the bending line 5. On the other hand, a joining step 9 projects from the other side in the long side direction of the concrete plate 2, and a bending line 5 protruding from the other side is arranged on the upper surface thereof, and the tip end thereof has an L-shape. It is bent.
The tip is bent at a right angle, but the bending angle is not limited as long as it is upright.
Further, the joining step 9 is formed to have irregularities in cross section, and the lower part of the bending line 5 is embedded in the projection 10. Also concrete plate 2
A positioning hole 11 through which a stud bolt of a bridge girder penetrates is opened at an appropriate position.
【0021】また図5〜図7は第2の実施の形態のプレ
キャストコンクリート床板12であり、コンクリート板
2の短辺方向の両端部に側板13が上側に折り曲げ形成
され、この側板13にトラス筋14を介して型板15が
間隙部16をもって設けられており、この側板13を設
けた以外は第1の実施の形態のプレキャストコンクリー
ト床板1と同じ構成である。前記側板13と型板15と
の間の間隙部16には現場打ちコンクリートが打設され
て壁高欄が形成されるようになっている。また、この打
設されたコンクリートと側板13または型板15との打
ち継ぎ部が水みちにならないように、これら側板13と
型板15との上部を図6の(2)に示すように形成する
こともできる。FIGS. 5 to 7 show a precast concrete floor plate 12 according to a second embodiment. Side plates 13 are bent upward at both ends of the concrete plate 2 in the short side direction. A template 15 is provided with a gap portion 16 through the intermediary of the precast concrete floor plate 1 of the first embodiment except that the side plate 13 is provided. Cast-in-place concrete is poured into a gap 16 between the side plate 13 and the template 15 to form a wall railing. In order to prevent the spliced portion between the cast concrete and the side plate 13 or the template 15 from leaking, an upper part of the side plate 13 and the template 15 is formed as shown in FIG. You can also.
【0022】次に、上記のようなプレキャストコンクリ
ート床板を使用した高架橋について説明する。図8は第
2の実施の形態のプレキャストコンクリート床板12を
使用した高架橋17の断面図であり、鋼製の橋桁18上
に長辺方向の側面を突き合わせて敷設したプレキャスト
コンクリート床板12の上面および、側板13と型板1
5との間隙部16にコンクリート19が打設されて壁高
欄22が形成され、前記型板15が内型枠兼用となって
いる。また、これらの側板13と型板15とはトラス筋
14で接合されているため接合強度が大きくなってい
る。さらに、一方のプレキャストコンクリート床板12
aの接合段部9は、図9及び図10に示すように、他方
のプレキャストコンクリート床板12bの側部に突き合
わされ、該側部から突設した連結筋4が接合段部9上に
配筋されて、折曲筋5とでループ20を形成し、該ルー
プ20内に主鉄筋21が配筋されている。したがって、
連結筋4と折曲筋5と主鉄筋21とによって長辺方向の
両側部が接合される。Next, the viaduct using the above precast concrete floorboard will be described. FIG. 8 is a sectional view of a viaduct 17 using the precast concrete floor slab 12 of the second embodiment. The upper surface of the precast concrete floor slab 12 laid on the steel bridge girder 18 with the long sides facing each other, and Side plate 13 and template 1
Concrete 19 is poured into the gap 16 between the wall 5 and the wall 5 to form a wall rail 22, and the template 15 also serves as an inner frame. Further, since the side plate 13 and the template 15 are joined by the truss bars 14, the joining strength is increased. Further, one of the precast concrete slabs 12
As shown in FIGS. 9 and 10, the joining step 9a is abutted against the side of the other precast concrete floor plate 12b, and the connecting bars 4 projecting from the side are arranged on the joining step 9. Then, a loop 20 is formed with the bending line 5, and a main reinforcing bar 21 is arranged in the loop 20. Therefore,
The connecting bars 4, the bending bars 5, and the main reinforcing bars 21 are joined at both sides in the long side direction.
【0023】次に、上記の高架橋の構築方法を図11〜
図13に基づいて説明する。はじめに、図11に示すよ
うにプレキャストコンクリート床板12a、12bをク
レーンで吊り上げ、位置決め孔11にスタッドボルト2
3が入るように橋桁18に敷設する。このとき、図12
に示すように、連結筋4の内側には主鉄筋21が既に配
筋され、折曲筋5側の主鉄筋21aも仮配置されてい
る。このように他方のプレキャストコンクリート床板1
2bを、既に設置されている一方のプレキャストコンク
リート床板12aに隣接して敷設すると、前記連結筋4
が一方のプレキャストコンクリート床板12aの接合段
部9の折曲筋5間に配筋される。この状態で上側に起立
した折曲筋5の先端部をUターン状に折り曲げて連結筋
4とでループ20を形成し、前記連結筋4に仮設置され
た主鉄筋21aを折曲筋5側に配筋すると、図11に示
すように、長辺方向の側部が連結される。そして、この
ように連結されたプレキャストコンクリート床板12
a、12bの上面および、側板13と型板15との間隙
部16に現場打ちコンクリート19を打設すると、図8
に示すような高架橋17が構築できる。このように折曲
筋5の先端部を起立させると、連結筋4に主鉄筋21を
予め配筋することができるので、現場における主鉄筋2
1の配筋を省略することができる。Next, the method for constructing the above-mentioned high crosslink is shown in FIGS.
This will be described with reference to FIG. First, as shown in FIG. 11, the precast concrete floor plates 12a and 12b are lifted by a crane, and stud bolts 2 are inserted into the positioning holes 11.
It is laid on the bridge girder 18 so that 3 enters. At this time, FIG.
As shown in (1), the main reinforcing bar 21 is already arranged inside the connecting bar 4, and the main reinforcing bar 21a on the bending bar 5 side is also temporarily disposed. Thus, the other precast concrete slab 1
2b is laid next to one of the pre-cast concrete slabs 12a that has already been installed.
Is arranged between the bending lines 5 of the joining step 9 of the one precast concrete floor panel 12a. In this state, the distal end of the bending bar 5 standing upward is bent in a U-turn shape to form a loop 20 with the connecting bar 4, and the main reinforcing bar 21 a temporarily installed on the connecting bar 4 is connected to the bending bar 5 side , The side portions in the long side direction are connected as shown in FIG. And the precast concrete slab 12 thus connected
When the cast-in-place concrete 19 is poured into the upper surfaces of the a and 12b and the gap 16 between the side plate 13 and the template 15, FIG.
The highly cross-linked 17 shown in FIG. When the distal end portion of the bending bar 5 is erected as described above, the main reinforcing bar 21 can be arranged in the connecting bar 4 in advance.
One bar arrangement can be omitted.
【0024】図13は、連結筋4に主鉄筋21が配筋さ
れていないプレキャストコンクリート床板12a、12
bの接合を示したものであり、連結筋4に主鉄筋21が
配筋されていなくても、プレキャストコンクリート板1
2a、12b同士を接合したときに、折曲筋5の先端部
が起立しているため連結筋4との間に隙間24が形成さ
れ、ここから主鉄筋21を配筋して折曲筋5をUターン
状に折り曲げるとループ20が形成できる。FIG. 13 shows precast concrete slabs 12a and 12 in which the main reinforcing bar 21 is not arranged in the connecting bar 4.
3B shows the connection of the precast concrete plate 1 even when the main reinforcing bar 21 is not
When the joints 2a and 12b are joined to each other, a gap 24 is formed between the bending bar 5 and the connecting bar 4 because the distal end of the bending bar 5 stands up. Is bent into a U-turn to form a loop 20.
【0025】上記の高架橋およびその構築方法は、第2
の実施の形態のプレキャストコンクリート床板12を使
用したものであるが、第1の実施の形態のプレキャスト
コンクリート床板1を使用する場合は、壁高欄22の構
築だけが異なり、それ以外は上記と同じ方法で構築でき
る。The above-mentioned hypercrosslinking and its construction method are described in the second section.
Although the precast concrete floorboard 12 of the embodiment is used, when the precast concrete floorboard 1 of the first embodiment is used, only the construction of the wall rail 22 is different, and otherwise the same method as described above is used. Can be built with
【0026】[0026]
【発明の効果】プレキャストコンクリート床板を橋桁上
に設置した場合、主鉄筋を連結筋内へ簡単に配筋するこ
とができる。When the precast concrete slab is installed on the bridge girder, the main reinforcing bars can be easily arranged in the connecting bars.
【0027】側板と型板との間隙部にコンクリートを打
設するだけで壁高欄を構築することができる。A wall rail can be constructed simply by casting concrete in the gap between the side plate and the template.
【0028】主鉄筋を連結筋内へ簡単に配筋することが
できるので、プレキャストコンクリート床板同士を簡単
に接合することができる。Since the main reinforcing bars can be easily arranged in the connecting bars, the precast concrete floor plates can be easily joined to each other.
【0029】トラス筋を配筋したプレキャストコンクリ
ート床板により、耐久性のある高架橋を構築することが
できる。The durable viaduct can be constructed by the precast concrete slab having the truss bars arranged therein.
【図1】第1の実施の形態のプレキャストコンクリート
床板の平面図である。FIG. 1 is a plan view of a precast concrete floor panel according to a first embodiment.
【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】(1)および(2)はプレキャストコンクリー
ト床板の側面図である。FIGS. 4 (1) and (2) are side views of a precast concrete floor panel.
【図5】第2の実施の形態のプレキャストコンクリート
床板の平面図である。FIG. 5 is a plan view of a precast concrete floor panel according to a second embodiment.
【図6】(1)は図5のC−C線断面図、(2)は要部
の断面図である。6A is a cross-sectional view taken along line CC of FIG. 5, and FIG. 6B is a cross-sectional view of a main part.
【図7】図5のD−D線断面図である。FIG. 7 is a sectional view taken along line DD of FIG. 5;
【図8】高架橋の断面図である。FIG. 8 is a sectional view of a viaduct.
【図9】図8のE−E線断面図である。FIG. 9 is a sectional view taken along line EE of FIG. 8;
【図10】(1)は図9の要部の拡大断面図、(2)は
(1)のF−F線断面図である。10A is an enlarged cross-sectional view of a main part of FIG. 9, and FIG. 10B is a cross-sectional view taken along line FF of FIG.
【図11】プレキャストコンクリート床板を橋桁上に敷
設した平面図である。FIG. 11 is a plan view in which a precast concrete floor panel is laid on a bridge girder.
【図12】(1)および(2)はプレキャストコンクリ
ート床板同士の接合方法を示す説明図である。FIGS. 12 (1) and (2) are explanatory views showing a method of joining precast concrete floorboards.
【図13】(1)〜(3)はプレキャストコンクリート
床板同士の他の接合方法を示す説明図である。FIGS. 13 (1) to (3) are explanatory views showing another joining method of precast concrete floorboards.
【図14】(1)および(2)は従来の高架橋の構築方
法を示す断面図および斜視図である。FIGS. 14 (1) and (2) are a cross-sectional view and a perspective view showing a conventional method for constructing a viaduct.
1、12、26 プレキャストコンクリート床板 2 コンクリート板 3、14 トラス筋 4 連結筋 5 折曲筋 6 上端筋 7 下端筋 8 ラチス筋 9 接合段部 10 凸部 11 位置決め孔 13 側板 15 型板 16 間隙部 17 高架橋 18 橋桁 19、25 コンクリート 20 ループ 21 主鉄筋 22 壁高欄 23 スタッドボルト 24 隙間 1, 12, 26 Precast concrete floor plate 2 Concrete plate 3, 14 Truss bar 4 Connecting bar 5 Bending bar 6 Upper bar 7 Lower bar 8 Lattice bar 9 Joining step 10 Convex part 11 Positioning hole 13 Side plate 15 Template 16 Gap 17 Viaduct 18 Bridge girder 19,25 Concrete 20 Loop 21 Main reinforcement 22 Wall railing 23 Stud bolt 24 Clearance
───────────────────────────────────────────────────── フロントページの続き (72)発明者 肥沼 年光 東京都渋谷区東3−15−7 日本カイザー 株式会社内 Fターム(参考) 2D059 AA14 BB37 CC03 CC04 DD16 GG55 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toumitsu Hinuma 3-15-7 Higashi, Shibuya-ku, Tokyo Japan Kaiser Co., Ltd. F-term (reference) 2D059 AA14 BB37 CC03 CC04 DD16 GG55
Claims (6)
板の長辺方向の一側部にUターン状の連結筋が適宜間隔
ごとに突設され、前記コンクリート板の他側部に突設さ
れた接合段部には折曲筋が設けられ、該折曲筋の先端部
が起立したことを特徴とするプレキャストコンクリート
床板。1. A U-turn connecting bar is protruded at an appropriate interval on one side in the long side direction of a concrete plate from which an upper portion of a truss bar protrudes, and protrudes from the other side of the concrete plate. A precast concrete slab wherein a bent line is provided at the joining step portion, and a tip end of the bent line stands upright.
側板が折り曲げ形成され、該側板にトラス筋を介して型
板が適宜間隔をもって設けられたことを特徴とする請求
項1に記載の高架橋用のプレキャストコンクリート床
板。2. The concrete plate according to claim 1, wherein side plates are bent at both side portions in the short side direction of the concrete plate, and template plates are provided on the side plate via truss bars at appropriate intervals. Precast concrete floorboard for viaduct.
板の短辺方向の両側部には側板が折り曲げ形成され、該
側板にトラス筋を介して型板が適宜間隔をもって設けら
れたプレキャストコンクリート床板が、長辺方向の側部
同士を突き合わせて橋桁上に敷設され、これらのプレキ
ャストコンクリート床板の上面および、側板と型板との
間隙部にコンクリートが打設されたことを特徴とする高
架橋。3. A precast concrete floor plate in which side plates are bent and formed on both sides in the short side direction of the concrete plate from which the upper portions of the truss bars protrude, and templates are provided on the side plates via truss bars at appropriate intervals. A viaduct, which is laid on a bridge girder with its long sides facing each other, and concrete is cast on the upper surface of these precast concrete slabs and the gap between the side plates and the template.
Uターン状の連結筋を適宜間隔ごとに突設し、かつ他側
部の接合段部には先端部が起立した折曲筋を設けたプレ
キャストコンクリート床板を、橋桁上に複数敷設してこ
れらの長辺方向の接合部に連結筋と折曲筋とを交互に配
筋し、これらの連結筋と折曲筋との間に形成された隙間
から連結筋内に主鉄筋を配筋するとともに、折曲筋の先
端部を折り曲げて連結筋とによるループを形成した後、
これらのプレキャストコンクリート床板上にコンクリー
トを打設することを特徴とする高架橋の構築方法。4. A U-turn connecting bar is protruded from one side of the concrete plate in the long side direction at appropriate intervals, and a bending bar having a standing end at the joining step on the other side. A plurality of precast concrete slabs provided with bridges are laid on the bridge girder, and connecting bars and bending bars are alternately arranged at the joints in the long side direction, and between these connecting bars and bending bars. After arranging the main reinforcing bar in the connecting bar from the formed gap and bending the tip of the bending bar to form a loop with the connecting bar,
A method for constructing a viaduct, which comprises placing concrete on these precast concrete floorboards.
は、トラス筋を介して型板を備えた側板が折り曲げ形成
され、コンクリート板の長辺方向の一側部にはUターン
状の連結筋を適宜間隔ごとに突設し、かつ他側部の接合
段部には先端部が起立した折曲筋を設けたプレキャスト
コンクリート床板を、橋桁上に複数敷設してこれらの長
辺方向の接合部に連結筋と折曲筋とを交互に配筋し、こ
れらの連結筋と折曲筋との隙間から連結筋内に主鉄筋を
配筋するとともに、折曲筋の先端部を折り曲げて連結筋
とによるループを形成した後、側板と型板との間隙部お
よび、プレキャストコンクリート床板上にコンクリート
を打設することを特徴とする高架橋の構築方法。5. A side plate provided with a template is formed on both sides in the short side direction of the concrete plate via truss bars, and a U-turn connection is made to one side in the long side direction of the concrete plate. A plurality of precast concrete slabs are provided on the bridge girder, with reinforcing bars protruding at appropriate intervals and a bent bar with an upstanding tip at the joining step on the other side. The connecting bars and the bending bars are arranged alternately in the section, and the main reinforcing bars are arranged in the connecting bars from the gaps between these connecting bars and the bending bars, and the tips of the bending bars are bent and connected. A method for constructing a viaduct, comprising: after forming a loop by a streak, placing concrete on a gap between a side plate and a template and on a precast concrete floor plate.
ことを特徴とする請求項4または5に記載の高架橋の構
築方法。6. The method for constructing a viaduct according to claim 4, wherein the main reinforcing bars are arranged in advance in the connecting bars.
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Applications Claiming Priority (1)
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JP31824999A JP3323463B2 (en) | 1999-11-09 | 1999-11-09 | Construction method of viaduct |
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JP2001132149A true JP2001132149A (en) | 2001-05-15 |
JP3323463B2 JP3323463B2 (en) | 2002-09-09 |
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JP2005264607A (en) * | 2004-03-19 | 2005-09-29 | Nippon Kaiser Kk | Construction method for overhang slab of viaduct and precast concrete board for overhang slab |
KR100804151B1 (en) | 2006-11-24 | 2008-02-19 | 전영총 | Manufacturing method of a bridge slab using PC structure for a bridge slab |
JP2008223370A (en) * | 2007-03-14 | 2008-09-25 | Haneda Concrete Industrial Co Ltd | Rigidly connecting structure of corner part |
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JP2005264607A (en) * | 2004-03-19 | 2005-09-29 | Nippon Kaiser Kk | Construction method for overhang slab of viaduct and precast concrete board for overhang slab |
KR100804151B1 (en) | 2006-11-24 | 2008-02-19 | 전영총 | Manufacturing method of a bridge slab using PC structure for a bridge slab |
JP2008223370A (en) * | 2007-03-14 | 2008-09-25 | Haneda Concrete Industrial Co Ltd | Rigidly connecting structure of corner part |
JP2010101072A (en) * | 2008-10-24 | 2010-05-06 | Taisei Corp | Structure of composite beam, and construction method for composite beam |
JP2011089390A (en) * | 2010-10-29 | 2011-05-06 | Haneda Concrete Industrial Co Ltd | Rigid connection structure of corner section |
JP2013174099A (en) * | 2012-02-27 | 2013-09-05 | East Nippon Expressway Co Ltd | Structure for protecting construction part in wall balustrade of floor slab waterproofing and method for constructing the same |
JP2015169031A (en) * | 2014-03-10 | 2015-09-28 | 三井住友建設株式会社 | Joining structure of precast wall handrail |
JP2020007733A (en) * | 2018-07-04 | 2020-01-16 | 鹿島建設株式会社 | Construction method of precast concrete member and joint structure of precast concrete member |
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