JPH1113015A - Arch slab type viaduct, and its execution method - Google Patents

Arch slab type viaduct, and its execution method

Info

Publication number
JPH1113015A
JPH1113015A JP16998497A JP16998497A JPH1113015A JP H1113015 A JPH1113015 A JP H1113015A JP 16998497 A JP16998497 A JP 16998497A JP 16998497 A JP16998497 A JP 16998497A JP H1113015 A JPH1113015 A JP H1113015A
Authority
JP
Japan
Prior art keywords
precast concrete
arch
concrete
members
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.)
Granted
Application number
JP16998497A
Other languages
Japanese (ja)
Inventor
Yukihiro Sato
幸博 佐藤
Akihiko Sanpei
昭彦 三瓶
Hitoshi Sasaki
仁 佐々木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujita Corp
Original Assignee
Fujita Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujita Corp filed Critical Fujita Corp
Priority to JP16998497A priority Critical patent/JPH1113015A/en
Publication of JPH1113015A publication Critical patent/JPH1113015A/en
Granted legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To provide an arch slab type viaduct in which the execution property and the quality are improved. SOLUTION: An arch slab type viaduct comprises precast concrete column members 3 which are piers erected on a precast concrete underground beam 1, half precast concrete girder members 4 which are stretched between the columns opposite to each other and the lower surface of which is formed a recessed arch surface, half precast concrete hanging floor systems which are hanged sidewise from the girder members 4, and a reinforced concrete upper half floor system consisting of the post-cast concrete 7 which is placed on the upper surface of an assembled skeleton of each member.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明はアーチスラブ形式高
架橋およびその施工方法に係るものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an arch slab type viaduct and a method for constructing the viaduct.

【0002】[0002]

【従来の技術】従来のアーチスラブ形式高架橋の施工で
は、プレキャストコンクリート部材は用いず、現場打ち
コンクリートによって施工し、型枠の製作、配筋、コン
クリート打設などの全ての工程を現場で行っていた。
2. Description of the Related Art In the conventional construction of an arch slab type viaduct, precast concrete members are not used, construction is performed by cast-in-place concrete, and all processes such as formwork production, reinforcement arrangement, and concrete placement are performed on site. Was.

【0003】[0003]

【発明が解決しようとする課題】このように従来工法に
よれば、型枠の製作、配筋、コンクリートの打設、脱
型、養生といった多くの工程を要し、これらをすべて現
場で行うので多くの手間と時間とを要した。また最近で
はこのような工事における熟練技術者が不足し、将来に
おいては更に深刻な問題となってきている。
As described above, according to the conventional method, many steps such as forming a form, arranging a reinforcing bar, placing concrete, removing a mold, and curing are required, and all these steps are performed on site. It took a lot of trouble and time. Recently, there has been a shortage of skilled technicians in such construction, and the problem has become even more serious in the future.

【0004】本発明は前記した問題点に鑑みて提案され
たもので、その目的とするところは、施工性及び品質が
改善されたアーチスラブ形式高架橋及びその施工法を提
供する点にある。
[0004] The present invention has been proposed in view of the above problems, and an object of the present invention is to provide an arch slab type viaduct with improved workability and quality, and a method of constructing the same.

【0005】[0005]

【課題を解決するための手段】前記の目的を達成するた
め、本発明に係るアーチスラブ形式高架橋は、プレキャ
ストコンクリート製地中梁部材と、同地中梁部材上に立
設された橋脚となるプレキャストコンクリート製柱部材
と、相対する同柱部材間に橋架され、且つ下面が凹入す
るアーチ面に形成されたハーフプレキャストコンクリー
ト製桁部材と、同桁部材から側方へ跳ね出されたハーフ
プレキャストコンクリート製跳ね出し部床版と、前記各
部材の組立て架構上面に打設される鉄筋コンクリート上
半床とより構成されている。
In order to achieve the above object, an arch slab type viaduct according to the present invention comprises a precast concrete underground beam member and a pier erected on the underground beam member. Precast concrete column members, half precast concrete girder members bridged between opposing column members and formed on arch surfaces with lower surfaces recessed, and half precast cast laterally from the girder members It is composed of a concrete spring-out floor slab and a reinforced concrete upper half-floor which is cast on the upper surface of the assembled frame of the above members.

【0006】また本発明に係るアーチスラブ形式高架橋
の施工法によれば、プレキャストコンクリート製地中梁
部材をセットしたのち、同地中梁部材上に橋脚となるプ
レキャストコンクリート製柱部材を継接し、立設し、次
いで相対する同柱部材間に下面が凹入するアーチ面に形
成されたハーフプレキャストコンクリート製桁を橋架
し、同桁の側方に突出するハーフプレキャストコンクリ
ート製跳ね出し部床部材を架設したのち、前記各部材の
接合部補強筋を配筋し、後打ちコンクリートを打設する
ものである。
According to the arch slab type viaduct construction method of the present invention, after setting a precast concrete underground beam member, a precast concrete column member serving as a bridge pier is connected to the undercast beam member. A half precast concrete girder formed on the arch surface where the lower surface is recessed between the opposite column members is erected, and a half precast concrete projecting part floor member protruding to the side of the girder is bridged. After the erection, the reinforcing bars for the joints of the respective members are arranged, and post-cast concrete is cast.

【0007】[0007]

【発明の実施の形態】以下、本発明を本発明の好ましい
実施の形態を示す図面について説明する。2分割された
プレキャストコンクリート製地中梁1を基礎2間にセッ
トし、(図1(イ)参照)次いで基礎2上に2分割され
た高架橋の橋脚となるプレキャストコンクリート製柱部
材3をセットし、(図1(ロ)参照)相対する同プレキ
ャストコンクリート製柱部材3間に亘って、下面が凹入
するアーチ面に形成されたハーフプレキャストコンクリ
ート製桁部材4を橋架する。図中4aは前記部材に内蔵
された肋筋の突出部である。(図1(ハ)参照)次いで
前記桁部材4の側方よりハーフプレキャストコンクリー
ト製跳ね出し部床版5を突出せしめる。(図1(ニ)参
照) なお前記床版5は、いずれも図示を省略されているが地
上より立設した支保工によって支持されるか、大梁間に
架渡された架設梁、または本設梁によって支持される。
DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the drawings showing preferred embodiments of the present invention. The precast concrete underground beam 1 divided into two is set between the foundations 2 (see FIG. 1 (a)), and then the precast concrete pillar member 3 serving as a viaduct bridge pier divided into two is set on the foundation 2. (See FIG. 1 (b).) A half precast concrete girder member 4 formed on an arch surface with a lower surface recessed is bridged between the opposing precast concrete column members 3. In the figure, reference numeral 4a denotes a protruding portion of the rib muscle incorporated in the member. (See FIG. 1 (c).) Then, a half-precast concrete projecting part floor slab 5 is made to protrude from the side of the spar member 4. (Refer to FIG. 1 (d).) Although the floor slab 5 is not shown in the drawings, it is supported by a erected upright from above the ground, a erection beam spanned between girders, or a permanent slab. Supported by beams.

【0008】次いで接合部補強筋が挿入されるもので、
図中6は前記壁柱3の主筋および梁下端主筋曲げ上げ定
着部を囲むように配筋された接合部補強筋である。(図
1(ホ)参照) 次いで前記のようにして組み立てられた各プレキャスト
コンクリート部材の表面に後打ちコンクリート7を打設
して、アーチスラブ形式高架橋を施工する。(図1
(ヘ)参照) 図2は前記各プレキャストコンクリート部材の接合部の
一実施例を示し、相隣る長辺方向のプレキャストコンク
リート製地中梁1aの対向面に設けたコッター間に高流
動コンクリートよりなる接合コンクリート8を充填し、
相隣る長辺方向及び短辺方向のプレキャストコンクリー
ト製地中梁1a、1bの主鉄筋9間をエンクローズド溶
接wするとともに、接合コンクリート8を充填し、短辺
方向のプレキャストコンクリート製地中梁1bの鉄筋の
曲げ上げ部に前記プレキャストコンクリート製柱部材3
の柱筋をスリーブ継手10を介して接合するものであ
る。
Next, a joint reinforcing bar is inserted.
In the figure, reference numeral 6 denotes a joint reinforcement reinforcing bar arranged so as to surround the main reinforcement of the wall column 3 and the main reinforcement at the lower end of the beam. (See FIG. 1 (e).) Next, a post-cast concrete 7 is cast on the surface of each precast concrete member assembled as described above, and an arch slab type viaduct is constructed. (Figure 1
(See (f)) FIG. 2 shows an embodiment of a joint portion of each of the precast concrete members. The high fluidity concrete is used between cotters provided on opposing surfaces of adjacent precast concrete underground beams 1a in the long side direction. Filled concrete 8
Enclosed welding w is performed between the main reinforcing bars 9 of the adjacent precast concrete underground beams 1a and 1b in the long side direction and the short side direction, and the joint concrete 8 is filled, and the precast concrete underground beam in the short side direction. 1b, the precast concrete column member 3
Are joined via the sleeve joint 10.

【0009】[0009]

【発明の効果】本発明に係るアーチスラブ形式高架橋は
前記したように、地中梁部材及び同部材上に立設される
柱部材、相対する同柱部材間に橋架される下面が凹入す
るアーチ面に形成された桁部材、同桁部材から側方に跳
ね出された跳ね出し部床版等の高架橋構成部材がプレキ
ャストコンクリート部材より構成され、同部材がすべて
プレキャストコンクリート工場、あるいは現場の別の場
所で製作されているので品質が向上し、これらのプレキ
ャスト部材を使用することにより運搬、揚重が容易にな
り、現場におけるコンクリートの打設量が軽減され、騒
音の発生を最小限に抑制しうるものである。また一つの
部材が大きい場合は複数分割することにより運搬、揚重
を便ならしめ、施工性をより向上しうるものである。
As described above, in the arch slab type viaduct according to the present invention, the underground beam member, the column member erected on the member, and the lower surface bridged between the opposing column members are recessed. Girder members formed on the arch surface and viaduct components such as floor slabs that protrude from the girder members to the side are composed of precast concrete members. The quality is improved because it is manufactured in the same place, and the use of these precast members facilitates transportation and lifting, reduces the amount of concrete poured on site, and minimizes noise generation It is possible. Further, when one member is large, it can be divided into a plurality of parts to facilitate transportation and lifting, thereby improving workability.

【0010】請求項2の発明は、プレキャストコンクリ
ート製地中梁部材をセットしたのち、その上に橋脚とな
るプレキャストコンクリート製柱部材を立設し、相対す
る同柱部材間に下面がアーチ面に形成されたハーフプレ
キャストコンクリート橋を橋架して、その側方にハーフ
プレキャストコンクリート製跳ね出し部床部材を架設
し、しかるのち前記各部材の接合部補強筋を配筋し、梁
上端及びスラブ上面を後打ちコンクリートにより打設
し、アーチスラブ形式高架橋を架設することによって、
従来多大の時間と手間を要していた現場作業を軽減し、
工期を短縮し、また部材を作業条件のよい工場等で製作
することにより品質を向上させることができるため、構
造上の信頼性が向上し、騒音等も最小限とすることがで
きる。
According to a second aspect of the present invention, a precast concrete underground beam member is set, and then a precast concrete column member serving as a pier is erected on the underground beam member, and the lower surface is formed between the opposing column members with an arch surface. Bridge the formed half-precast concrete bridge, lay a half-precast concrete projecting part floor member on the side, and then arrange the joint reinforcement of each of the above members, and change the upper end of the beam and the upper surface of the slab. By casting with post-cast concrete and constructing an arch slab type viaduct,
Reduces on-site work that previously required a lot of time and effort,
Since the quality can be improved by shortening the construction period and manufacturing the members in a factory or the like with good working conditions, the structural reliability is improved and noise and the like can be minimized.

【図面の簡単な説明】[Brief description of the drawings]

【図1】(イ)(ロ)(ハ)(ニ)(ホ)及び(ヘ)は
本発明に係るアーチスラブ形式高架橋の施工工程を示す
斜視図である。
1 (a), (b), (c), (d), (e) and (f) are perspective views showing a construction process of an arch slab type viaduct according to the present invention.

【図2】プレキャストコンクリート製地中梁と柱部材と
の接合部を示す縦断面図である。
FIG. 2 is a longitudinal sectional view showing a joint between a precast concrete underground beam and a column member.

【図3】図2の矢視イ−イ図である。FIG. 3 is a view taken along arrows in FIG. 2;

【符号の説明】[Explanation of symbols]

1、1a、1b プレキャストコンクリート製地中梁 2 基礎 3 プレキャストコンクリート製柱部材 4 ハーフプレキャストコンクリート製桁部材 4a 肋筋の突出部 5 ハーフプレキャストコンクリート製跳ね出し床版 6 接合部補強筋 7 後打ちコンクリート 8 接合コンクリート 9 主鉄筋 10 スリーブ継手 w エンクローズド溶接 DESCRIPTION OF SYMBOLS 1, 1a, 1b Precast concrete underground beam 2 Foundation 3 Precast concrete column member 4 Half precast concrete girder member 4a Rib projection 5 Half precast concrete sprung floor slab 6 Joint reinforcement 7 Post-cast concrete 8 Joint concrete 9 Main rebar 10 Sleeve joint w Enclosed welding

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 プレキャストコンクリート製地中梁部材
と、同地中梁部材上に立設された橋脚となるプレキャス
トコンクリート製柱部材と、相対する同柱部材間に橋架
され、且つ下面が凹入するアーチ面に形成されたハーフ
プレキャストコンクリート製桁部材と、同桁部材から側
方へ跳ね出されたハーフプレキャストコンクリート製跳
ね出し部床版と、前記各部材の組立て架構上面に打設さ
れる鉄筋コンクリート上半床とより構成されてなること
を特徴とするアーチスラブ形式高架橋。
1. A precast concrete underground beam member, a precast concrete column member which is a pier standing on the underground beam member, and is bridged between opposing same column members, and the lower surface is recessed. Half precast concrete girder member formed on the arch surface to be formed, a half precast concrete sprung part floor slab that protrudes laterally from the girder member, and reinforced concrete cast on the upper surface of the assembled frame of each of the above members An arch slab type viaduct characterized by comprising an upper half floor.
【請求項2】 プレキャストコンクリート製地中梁部材
をセットしたのち、同地中梁部材上に橋脚となるプレキ
ャストコンクリート製柱部材を継接し、立設し、次いで
相対する同柱部材間に下面が凹入するアーチ面に形成さ
れたハーフプレキャストコンクリート製桁を橋架し、同
桁の側方に突出するハーフプレキャストコンクリート製
跳ね出し部床部材を架設したのち、前記各部材の接合部
補強筋を配筋し、後打ちコンクリートを打設することを
特徴とするアーチスラブ形式高架橋の施工方法。
2. After setting a precast concrete underground beam member, a precast concrete column member serving as a bridge pier is spliced on the underground beam member, and is erected. After bridging a half-precast concrete girder formed on the concave arch surface and laying a half-precast concrete protrusion floor member projecting to the side of the girder, a reinforcing bar for a joint at each of the members is arranged. An arch slab type viaduct construction method characterized by laying and placing post-cast concrete.
JP16998497A 1997-06-26 1997-06-26 Arch slab type viaduct, and its execution method Granted JPH1113015A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16998497A JPH1113015A (en) 1997-06-26 1997-06-26 Arch slab type viaduct, and its execution method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16998497A JPH1113015A (en) 1997-06-26 1997-06-26 Arch slab type viaduct, and its execution method

Publications (1)

Publication Number Publication Date
JPH1113015A true JPH1113015A (en) 1999-01-19

Family

ID=15896451

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16998497A Granted JPH1113015A (en) 1997-06-26 1997-06-26 Arch slab type viaduct, and its execution method

Country Status (1)

Country Link
JP (1) JPH1113015A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100463310B1 (en) * 2000-09-18 2004-12-29 유근무 Precast Reinforced Concrete Main-beam of Bridge
JP2011220100A (en) * 2010-03-24 2011-11-04 Toda Constr Co Ltd Solid viaduct structure and construction method of the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100463310B1 (en) * 2000-09-18 2004-12-29 유근무 Precast Reinforced Concrete Main-beam of Bridge
JP2011220100A (en) * 2010-03-24 2011-11-04 Toda Constr Co Ltd Solid viaduct structure and construction method of the same

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