JP2000104218A - Bridge pier structure and construction method thereof - Google Patents

Bridge pier structure and construction method thereof

Info

Publication number
JP2000104218A
JP2000104218A JP10279039A JP27903998A JP2000104218A JP 2000104218 A JP2000104218 A JP 2000104218A JP 10279039 A JP10279039 A JP 10279039A JP 27903998 A JP27903998 A JP 27903998A JP 2000104218 A JP2000104218 A JP 2000104218A
Authority
JP
Japan
Prior art keywords
cylinder
steel
pier
construction
concrete
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
Application number
JP10279039A
Other languages
Japanese (ja)
Other versions
JP2000104218A5 (en
Inventor
Kenji Sashita
Keiichiro Sonoda
Masahito Sugimoto
Tsutomu Tanihira
Fumio Yagishita
Suehiko Yokota
恵一郎 園田
健次 指田
雅人 杉本
文夫 柳下
季彦 横田
勉 谷平
Original Assignee
Jdc Corp
日本国土開発株式会社
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 Jdc Corp, 日本国土開発株式会社 filed Critical Jdc Corp
Priority to JP10279039A priority Critical patent/JP2000104218A/en
Publication of JP2000104218A publication Critical patent/JP2000104218A/en
Publication of JP2000104218A5 publication Critical patent/JP2000104218A5/ja
Pending legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To provide a bridge pier structure and the construction method therefor including a high degree of strength as reducing the dead load and being excellent in execution. SOLUTION: Each divided body 16A, 18A, which has a steel made outer cylinder 16 and an inner cylinder 18 divided in the circumferential direction, is closely built in a cylindrical shape from the outside or the inside at the construction site, fitted and connected together by a rib provided on the interior of the outer cylinder or the exterior of the inner cylinder and a rib connection member provided on the other with concrete 20 filled in between the outer and inner cylinders. A hollow bridge pier is formed by stacking up this operation from a footing 12 side in a block unit. Thus a hollow structural bridge pier 10 is built with concentrically arranged similar figured steel made outer cylinder 16 and the steel made inner cylinder 18 integrally formed with each other by having concrete 20 filled in between them. Deterioration of the steel in the internal space can be effectively prevented by sealing the internal space of the upper and lower ends of the bridge pier with the footing 12 and a beam 14. Although the outer and inner cylinders 16, 18 are composed of a combination of, for example, a similar figure cylinders, combination of different cross sections is also acceptable, as required.

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】本発明は橋脚構造および橋脚
施工方法に係り、特に自重を低減して高橋脚とするのに
好適な橋脚の構造形式、およびその施工方法に関するも
のである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pier structure and a pier construction method, and more particularly, to a pier structure suitable for reducing a self-weight and forming a high pier, and a construction method thereof.

【0002】[0002]

【従来の技術】一般に、橋脚の構造形式としては、鉄筋
コンクリート橋脚または鋼製橋脚が主体であるが、阪神
大震災以降、各種土木構造物に対して、地震時の安全性
に対する見直しがなされており、橋脚に関しても高耐震
性が要求されるようになった。
2. Description of the Related Art Generally, bridge piers are mainly reinforced concrete piers or steel piers. After the Great Hanshin Earthquake, various civil engineering structures have been reviewed for their safety during earthquakes. High quake resistance has been required for piers.

【0003】従来から橋脚の施工方法は、適当な高さ毎
に、鉄筋組立、型枠組立、コンクリート打設、型枠脱型
を繰り返し行なうものであり、型枠の移動を自動化した
工法が主体である。さらに、近年、鋼管を支柱にした移
動式型枠(スリップフォーム)工法、プレキャスト製の
型枠を使用した方法が発明されている。
[0003] Conventionally, the method of constructing a pier has been to repeatedly perform rebar assembly, formwork assembly, concrete placement, and form removal from the mold at appropriate heights, and mainly employs a method of automatically moving the formwork. It is. Further, in recent years, a movable form (slip form) method using a steel pipe as a column and a method using a precast form have been invented.

【0004】[0004]

【発明が解決しようとする課題】しかしながら、従来の
橋梁の橋脚における構造形式および施工方法に関して
は、以下のような問題点を有している。 山間部に
おける高速道路等においては、高さが40mを超える橋
脚(ハイピア)の建設が多くなっている。一般に、この
ような高橋脚は自重が大きいため、地震に大きな慣性力
を生じて不利となる。いわゆるトップヘビーな構造であ
る。また、大きな自重に対抗するためには、橋脚自体の
断面積を大きくする必要がある。 橋脚の耐震性能を向上させる目的からは、橋脚の水
平方向に帯鉄筋を配置する必要がある。阪神大震災以降
の設計基準の見直しの結果、この帯鉄筋の設置間隔を1
50mmと規定しており、実工事において、帯鉄筋の設
置組立作業が非常に煩雑となることが問題となってい
る。 通常の鉄筋コンクリート構造の橋脚の施工では、鉄
筋組立、型枠組立、コンクリート打設、および型枠脱型
の各作業を繰り返し行なうが、この場合、高所での作業
がほとんどであり、鉄筋組立が工程上クリティカルとな
る。また、近年の作業員の高齢化から、鉄筋作業におけ
る、熟練不足も問題となっている。 高橋脚では、自重の軽減から部材を中空断面として
いるが、この場合、内側の型枠脱型作業が煩雑となる。 高橋脚の施工では高所の作業が多くなり、墜落およ
び落下事故に対して、十分安全性を確保することが必要
となる。 高橋脚に関しては、狭隘な山間部での施工が多くな
る。したがって、日常的な維持管理が困難となり、ある
程度メンテナンスフリー構造が要求される。 本発明は、上記従来の問題点に着目し、自重を低減しつ
つ高い強度を有し、施工性に優れた橋脚構造とその施工
方法を提供することを目的とする。
However, there are the following problems with respect to the structure type and construction method of a conventional pier of a bridge. On highways and the like in mountainous areas, the construction of piers (hypeers) having a height of more than 40 m is increasing. Generally, such a high pier has a large own weight, and is disadvantageous because it generates a large inertial force due to an earthquake. It is a so-called top heavy structure. Also, in order to counter large weight, it is necessary to increase the cross-sectional area of the pier itself. For the purpose of improving the pier's seismic performance, it is necessary to arrange the reinforcing bars in the horizontal direction of the pier. As a result of reviewing the design standards after the Great Hanshin Earthquake, the installation interval of
It is specified as 50 mm, and there is a problem that the installation and assembling work of the belt reinforcing bar becomes very complicated in actual construction. In the construction of a normal reinforced concrete bridge pier, the rebar assembling, formwork assembling, concrete casting, and formwork demolding work are repeated, but in this case, most of the work is performed at high altitudes. Critical in the process. In addition, due to the aging of workers in recent years, lack of skill in rebar work has also become a problem. In the high pier, the member has a hollow cross section in order to reduce its own weight, but in this case, the work of removing the inner formwork is complicated. Construction of high piers requires a lot of work in high places, and it is necessary to ensure sufficient safety against falls and accidents. Regarding high piers, construction in narrow mountainous areas will increase. Therefore, daily maintenance becomes difficult, and a maintenance-free structure is required to some extent. An object of the present invention is to provide a bridge pier structure that has high strength while reducing its own weight and is excellent in workability, and a method of working the same, focusing on the above-described conventional problems.

【0005】[0005]

【課題を解決するための手段】本発明は、工場にて適当
な大きさに分割された寸法が異なる角形または円形の鋼
管を、橋脚建設時、もしくはその近傍にて橋脚建設前
に、矩形または円形に溶接し、寸法が異なる同形状の鋼
材エレメントを二重に配置して、両者の隙間に高い流動
性を有するコンクリートを充填する橋脚を製作すること
により、前述した問題点を解決することができるとの知
見からなされた。
SUMMARY OF THE INVENTION The present invention relates to a method for forming rectangular or circular steel pipes of different sizes, which are divided into appropriate sizes at a factory, at the time of or near the pier construction or before the pier construction. The above-mentioned problem can be solved by welding a circular shape, arranging steel elements of the same shape having different dimensions twice, and fabricating a bridge pier that fills a gap having high fluidity with concrete. It was made from the knowledge that it can be done.

【0006】すなわち、本発明に係る橋脚構造は、同心
に配置された鋼材外筒と鋼材内筒とを有し、内部にコン
クリートを充填して一体化して構築したものである。ま
た、同心に配置された鋼材外筒と鋼材内筒とを有し、内
部にコンクリートを充填して一体化することにより中空
構造の橋脚本体とし、上下端部をフーチングと梁により
内部空間を密閉する構造としてもよい。これらの場合に
おいて、前記鋼材外筒を耐候性鋼材により形成したこと
を特徴とする請求項1または2に記載の橋脚構造。
That is, the pier structure according to the present invention has a steel outer cylinder and a steel inner cylinder which are arranged concentrically, and is integrally constructed by filling concrete inside. In addition, it has a steel outer cylinder and a steel inner cylinder which are arranged concentrically, and it is filled with concrete and integrated into a hollow bridge pier body, and the upper and lower ends are sealed with footing and beams at the upper and lower ends It is good also as a structure which does. The pier structure according to claim 1 or 2, wherein, in these cases, the steel outer cylinder is formed of a weather-resistant steel material.

【0007】また、本発明に係る橋脚施工方法は、鋼材
からなる外筒と内筒とを円周方向に分割した各分割体を
施工箇所で外側もしくは内側から筒状に建て込むととも
に、外筒内面もしくは内筒外面の一方に設けたリブと他
方に設けたリブ結合部材により嵌合連結し、前記外筒と
内筒との間にコンクリートを充填する作業を繰り返しつ
つ、フーチング側から上方に積み上げて中空橋脚を形成
することを特徴としている。
Further, according to the bridge pier construction method of the present invention, each divided body obtained by dividing an outer cylinder and an inner cylinder made of a steel material in a circumferential direction is built in a tubular shape from the outside or the inside at a construction location, and the outer cylinder is formed. The ribs provided on one of the inner surface or the outer surface of the inner tube and the rib connecting member provided on the other are fitted and connected, and the operation of filling concrete between the outer tube and the inner tube is repeated, while being piled up from the footing side. It is characterized by forming a hollow pier.

【0008】あるいは、鋼材からなる相似形状の外筒と
内筒とを円周方向に分割した各分割体を予め筒状に形成
しておき、これを施工位置にて二重筒状に結合配置して
内部にコンクリートを打設する作業をフーチング側から
順次上方に積み上げ構築して中空橋脚を形成する鋼製と
してもよい。
[0008] Alternatively, each divided body obtained by dividing an outer cylinder and an inner cylinder of a similar shape made of steel in the circumferential direction is formed in a cylindrical shape in advance, and these are combined and arranged in a double cylindrical shape at a construction position. The work of casting concrete into the inside may be made of steel which is built up sequentially from the footing side and built up to form a hollow pier.

【0009】なお、内外筒は相似形状とすることが望ま
しいが、必要に応じて異形筒の組合せ構造としてもよ
い。
It is desirable that the inner and outer cylinders have similar shapes. However, if necessary, a combination of deformed cylinders may be used.

【0010】[0010]

【発明の実施の形態】以下、本発明に係る橋脚構造およ
び橋脚施工方法の具体的実施の形態を図面を参照して詳
細に説明する。図1は実施形態に係る橋脚構造を示す断
面図である。橋脚10はフーチング12を基礎として上
方に立ち上げられ、上端部にて梁14を支承する。この
支持部材としての橋脚10は同心に配置された相似形状
の鋼材外筒16と鋼材内筒18とを有し、内部にコンク
リート20を充填して一体化して構築されたものであ
る。そして、中空橋脚10の上下端部をフーチング12
と梁14により内部空間22を密閉して構成されてい
る。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of a pier structure and a pier construction method according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a sectional view showing a pier structure according to the embodiment. The pier 10 is raised upward on the basis of the footing 12 and supports a beam 14 at the upper end. The pier 10 as a support member has a steel outer tube 16 and a steel inner tube 18 having similar shapes arranged concentrically, and is constructed by filling concrete 20 into the inside and integrating them. Then, the upper and lower ends of the hollow pier 10 are footed 12
The inner space 22 is hermetically closed by the beams 14.

【0011】図2および図3は中空橋脚10を円形断面
(図2)とした場合と矩形断面(図3)とした場合の構
造例を示している。いずれも鋼材外筒16と鋼材内筒1
8との隙間に内部コンクリート20を充填した構造とな
っている。また、構造物の剛性を高める目的から、鉛直
補剛材としてリブ24を設けている。これは鋼材外筒1
6の内面と鋼材内筒18の外面とを連結して一体化する
もので、内部空間を周方向に分割するように配置され、
橋脚全長にわたって設けている。各使用材料としては、
鋼材外筒16は供用時のメンテナンスフリーを目的とし
て耐候性鋼板を使用し、鋼材内筒18は供用時には外気
との接触が少なく、美観を考慮する必要がないことか
ら、通常の鋼板を使用する。内部充填コンクリート20
は鋼材との間に隙間を残さないため、高流動性を有する
コンクリートを使用する。
FIGS. 2 and 3 show structural examples in which the hollow pier 10 has a circular cross section (FIG. 2) and a rectangular cross section (FIG. 3). In each case, the steel outer cylinder 16 and the steel inner cylinder 1
8 is filled with internal concrete 20. Further, for the purpose of increasing the rigidity of the structure, a rib 24 is provided as a vertical stiffener. This is a steel outer cylinder 1
6 and the outer surface of the steel inner tube 18 are connected and integrated, and are arranged so as to divide the internal space in the circumferential direction,
It is provided over the entire length of the pier. As each used material,
The steel outer cylinder 16 uses a weather-resistant steel plate for the purpose of maintenance-free operation, and the steel inner cylinder 18 uses a normal steel plate because the inner cylinder 18 has little contact with the outside air during operation and does not need to consider an aesthetic appearance. . Internal filling concrete 20
Use concrete with high fluidity to leave no gaps between steel and steel.

【0012】図4は図2に示した円形断面の場合の概要
図を示しており、図5は図4の部分詳細を示している。
橋脚水平方向の断面には、内部コンクリート20と鋼材
外筒16および鋼材内筒18とが一体として挙動するた
めのずれ止め効果と、大きな軸力に対する局部座屈の防
止効果および全体的な剛性の増加を目的とした水平方向
補剛材としてダイヤフラム26を設けている。これは橋
脚を構築するに当たって、後述するように積み上げブロ
ック方式を採用するが、各ブロックの接合部分にフラン
ジ状に上下を仕切る構造として形成すればよい。上述の
ような構造の橋脚の施工方法の第1の実施形態を図6
に、第2実施形態を図7に示しており、いずれも円形断
面の橋脚施工の場合を示している。
FIG. 4 shows a schematic view of the case of the circular cross section shown in FIG. 2, and FIG. 5 shows a detail of FIG.
The cross section in the horizontal direction of the pier has a slip preventing effect for the internal concrete 20 and the steel outer tube 16 and the steel inner tube 18 to behave integrally, a local buckling prevention effect against a large axial force, and an overall rigidity. A diaphragm 26 is provided as a horizontal stiffener for the purpose of increase. In constructing the bridge pier, a stacked block method is adopted as described later, but it may be formed as a structure that separates the upper and lower portions in the form of a flange at the joint portion of each block. FIG. 6 shows a first embodiment of a method for constructing a pier having the above-described structure.
Next, FIG. 7 shows a second embodiment, and shows a case of constructing a pier having a circular cross section.

【0013】図5は第1の施工方法に係る高橋脚の施工
手順の一例を示している。以下に、その施工手順を図示
(1)〜(6)の順を追って説明する。まず、図5
(1)、(2)に示しているように、T形の鉛直補剛材
(リブ)24を有する鋼材外筒16の分割体16Aを、
橋脚建設位置もしくは橋脚建設位置近傍において円周方
向に溶接接合し、環状に鋼材外筒16を組み立てる。次
いで、同図(2)、(3)に示しているように、前記T
形リブ24に係合できるような形状のL形鋼板28を左
右に有する鋼材内筒18の分割体18Aを、鋼材外筒1
6のリブ24を利用して上部から順次建て込む。内筒分
割体18Aを周方向に接合して鋼材内筒18の組立が完
了した後、同図(5)の如く、鋼材外筒16のリブ24
と鋼材内筒18のL形鋼28で囲まれた嵌合継手30の
内部にモルタル材料32を充填し、嵌合継手を完了す
る。最後に同図(6)に示しているように、鋼材外筒1
6と鋼材内筒18との間に高流動性のコンクリート材料
3を充填し、全体を一体化した合成構造とする。このよ
うな鋼材外筒16と鋼材内筒18との間にコンクリート
20を打設して一体化したものをブロックとして、図1
に示してフーチング12側から上方に向けてブロック積
みするように積み上げ構築する。
FIG. 5 shows an example of a procedure for constructing a high pier according to the first construction method. The construction procedure will be described below in the order of (1) to (6). First, FIG.
As shown in (1) and (2), the divided body 16A of the steel outer cylinder 16 having the T-shaped vertical stiffener (rib) 24 is
At the bridge pier construction position or near the pier construction position, welding is performed in the circumferential direction to assemble the steel outer cylinder 16 in an annular shape. Next, as shown in FIGS.
The divided body 18A of the steel inner cylinder 18 having left and right L-shaped steel plates 28 shaped to engage with the shaped ribs 24
6 are sequentially built from the upper part using the ribs 24. After the inner cylinder divided body 18A is joined in the circumferential direction and the assembly of the steel inner cylinder 18 is completed, as shown in FIG.
The mortar material 32 is filled into the fitting joint 30 surrounded by the L-shaped steel 28 of the steel inner cylinder 18 to complete the fitting joint. Finally, as shown in FIG.
A highly fluid concrete material 3 is filled between the steel material inner tube 6 and the steel inner tube 18 to form a composite structure in which the whole is integrated. FIG. 1 shows a block obtained by casting concrete 20 between the steel outer tube 16 and the steel inner tube 18 and integrating them.
As shown in the figure, the stacking construction is performed in such a manner that blocks are stacked upward from the footing 12 side.

【0014】図7には橋脚施工方法の第2実施形態を示
す。これは予め鋼材外筒16と鋼材内筒18とを工場も
くしは現場近くにおいて、円周方向に接合して組み立て
ておくようにしている。この各鋼材外筒16、鋼材内筒
18を既設橋脚ブロックの上に内側から建て込み(同図
(1)、(2))、鉛直方向を接合する。接合が完了し
た後、同図(3)のように、鋼材外筒16と鋼材内筒1
8に囲まれた内部空間22内にコンクリート20を充填
し、一体化した合成構造とする。
FIG. 7 shows a second embodiment of the pier construction method. In this case, the steel outer tube 16 and the steel inner tube 18 are joined together in the circumferential direction in the factory or near the site in advance so as to be assembled. The steel outer cylinder 16 and the steel inner cylinder 18 are built from above on the existing pier block ((1) and (2) in the same figure) and are joined in the vertical direction. After the joining is completed, as shown in FIG.
Concrete 20 is filled in an internal space 22 surrounded by 8 to form an integrated composite structure.

【0015】このようにして構築された橋脚10は、以
下のような特徴をもつ。 鋼材とコンクリートによる鋼・コンクリートは、鉄
筋コンクリート構造に比べて高い耐力を有するため、部
材の断面寸法の低減が図れ、自重を低減できるため、地
震時に有利な構造物とすることができる。 外側の配置した鋼材が帯鉄筋と同様の効果を果たす
ため、大きな軸力が作用した場合に内部コンクリートに
対する拘束効果が期待され、耐力が大幅に改善される。
また、このように鋼材の内部にコンクリートを充填した
サンドイッチ構造は、高靱性を有するため、耐震性が大
幅に向上する。 鉄筋を使用しないため、鉄筋組立作業を省力するこ
とができ、施工の効率化、急速化を図ることができる。
また、作業員の熟練度に拘わらず、均一な品質を有する
構造物を構築することができる。 外側および内側に配置する鋼材をコンクリート打設
時に型枠として使用できるため、型枠脱型などの作業を
省略することができる。 外側での作業を大幅に低減できるため、墜落、落下
等の事故に対して安全性の確保が容易である。 外側の鋼材に耐候性鋼板を使用するため、ある程度
のメンテナンスフリー構造とすることができる。
The pier 10 thus constructed has the following features. Steel / concrete made of steel and concrete has a higher strength than a reinforced concrete structure, so that the cross-sectional dimensions of the members can be reduced, and the weight of the member can be reduced. Since the steel material arranged on the outside has the same effect as the strip reinforcing steel, when a large axial force acts, a restraining effect on the internal concrete is expected, and the proof stress is greatly improved.
In addition, since the sandwich structure in which the concrete is filled in the steel material has high toughness, the earthquake resistance is greatly improved. Since no rebar is used, the rebar assembling work can be saved, and the efficiency and speed of construction can be increased.
Further, a structure having a uniform quality can be constructed regardless of the skill level of the worker. Since the steel materials disposed on the outside and the inside can be used as a formwork at the time of concrete casting, it is possible to omit operations such as mold release. Since the work on the outside can be greatly reduced, it is easy to ensure safety against accidents such as crashes and falls. Since a weather-resistant steel plate is used for the outer steel material, a certain maintenance-free structure can be achieved.

【0016】[0016]

【発明の効果】以上説明したように、本発明によれば、
同心に配置された鋼材外筒と鋼材内筒とを有し、内部に
コンクリートを充填して一体化して構築するようにし、
望ましくはこの中空橋脚の上下を密閉して内部空間を外
気を遮断するように構成しているので、橋脚自重を低減
しつつ、耐久性に優れ、かつ鉄筋巻きなどの高所作業を
要しない施工性に優れた工法を実現することができる。
As described above, according to the present invention,
Having a steel outer cylinder and a steel inner cylinder arranged concentrically, filling the inside with concrete to integrate and build,
Desirably, the upper and lower sides of this hollow pier are sealed to block the outside air from the inside space, so the pier's own weight is reduced, and it is durable and does not require work at heights such as rebar winding. It is possible to realize a construction method with excellent performance.

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

【図1】実施形態に係る橋脚構造を示す全体構成図であ
る。
FIG. 1 is an overall configuration diagram showing a pier structure according to an embodiment.

【図2】円形断面の橋脚構造を示す平面断面図と斜視図
である。
FIG. 2 is a plan sectional view and a perspective view showing a pier structure having a circular section.

【図3】角形断面の橋脚構造を示す平面断面図と斜視図
である。
FIG. 3 is a plan sectional view and a perspective view showing a pier structure having a square cross section.

【図4】円形断面橋脚の縦横断面図である。FIG. 4 is a vertical and horizontal sectional view of a circular pier.

【図5】図4の部分断面図である。FIG. 5 is a partial sectional view of FIG. 4;

【図6】橋脚施工方法の第1実施形態の施工手順の説明
図である。
FIG. 6 is an explanatory diagram of a construction procedure according to the first embodiment of the pier construction method.

【図7】橋脚施工方法の第2実施形態の施工手順の説明
図である。
FIG. 7 is an explanatory view of a construction procedure according to a second embodiment of the pier construction method.

【符号の説明】[Explanation of symbols]

10 橋脚 12 フーチング 14 梁 16 鋼材外筒 18 鋼材内筒 20 内部充填コンクリート 22 内部空間 24 鉛直方向補剛材(リブ) 26 水平方向補剛材(ダイヤフラム) 28 内部鋼板の継手部L形鋼 30 嵌合継手 32 嵌合継手の充填モルタル DESCRIPTION OF SYMBOLS 10 Bridge pier 12 Footing 14 Beam 16 Steel outer cylinder 18 Steel inner cylinder 20 Internal filling concrete 22 Internal space 24 Vertical stiffener (rib) 26 Horizontal stiffener (diaphragm) 28 Joint L-shaped steel of internal steel plate 30 Fitting Fitting 32 Filling mortar for fitting

───────────────────────────────────────────────────── フロントページの続き (72)発明者 柳下 文夫 大阪府東大阪市小若江三丁目4番1号 近 畿大学内 (72)発明者 横田 季彦 東京都港区赤坂四丁目9番9号 日本国土 開発株式会社内 (72)発明者 指田 健次 東京都港区赤坂四丁目9番9号 日本国土 開発株式会社内 (72)発明者 杉本 雅人 東京都港区赤坂四丁目9番9号 日本国土 開発株式会社内 Fターム(参考) 2D059 AA03 CC04 GG55  ──────────────────────────────────────────────────続 き Continued on the front page (72) Fumio Yanagishita 3-4-1 Kowakae, Higashi-Osaka City, Osaka Prefecture Inside Kinki University (72) Inventor Kunihiko Yokota 4-9-1-9 Akasaka, Minato-ku, Tokyo Japan Inside the National Land Development Co., Ltd. (72) Kenji Sashida 4-9-1-9 Akasaka, Minato-ku, Tokyo Japan National Land Development Co., Ltd. (72) Masato Sugimoto 4-9-1-9 Akasaka, Minato-ku, Tokyo Japan National Development Co., Ltd. F term (reference) 2D059 AA03 CC04 GG55

Claims (5)

    【特許請求の範囲】[Claims]
  1. 【請求項1】 同心に配置された鋼材外筒と鋼材内筒と
    を有し、内部にコンクリートを充填して一体化して構築
    されてなることとを特徴とする橋脚構造。
    1. A pier structure comprising a steel outer cylinder and a steel inner cylinder which are arranged concentrically, and which is constructed integrally with concrete by being filled therein.
  2. 【請求項2】 同心に配置された鋼材外筒と鋼材内筒と
    を有し、内部にコンクリートを充填して一体化すること
    により中空構造の橋脚構造とし、上下端部をフーチング
    と梁により内部空間を密閉してなることを特徴とする橋
    脚構造。
    2. A hollow pier structure having a steel outer cylinder and a steel inner cylinder which are arranged concentrically, and a concrete structure is filled and integrated into the pier structure, and the upper and lower ends are formed by footing and beams. A pier structure characterized by sealing the space.
  3. 【請求項3】 前記鋼材外筒を耐候性鋼材により形成し
    たことを特徴とする請求項1または2に記載の橋脚構
    造。
    3. The pier structure according to claim 1, wherein the steel outer cylinder is formed of a weather-resistant steel material.
  4. 【請求項4】 鋼材からなる外筒と内筒とを円周方向に
    分割した各分割体を施工箇所で外側もしくは内側から筒
    状に建て込むとともに、外筒内面もしくは内筒外面の一
    方に設けたリブと他方に設けたリブ結合部材により嵌合
    連結し、前記外筒と内筒との間にコンクリートを充填す
    る作業を繰り返しつつ、フーチング側から上方に積み上
    げて中空橋脚を形成することを特徴とする橋脚施工方
    法。
    4. An outer cylinder made of a steel material and an inner cylinder which are divided in the circumferential direction are each built into a cylindrical shape from outside or inside at a construction site, and provided on one of an inner surface of the outer cylinder and an outer surface of the inner cylinder. It is characterized in that a hollow bridge pier is formed by stacking up from the footing side while repeating the work of filling concrete between the outer cylinder and the inner cylinder by fitting and connecting with the ribs provided on the other side and the rib connecting member provided on the other side. And the pier construction method.
  5. 【請求項5】 鋼材からなる外筒と内筒とを円周方向に
    分割した各分割体を予め筒状に形成しておき、これを施
    工位置にて二重筒状に結合配置して内部にコンクリート
    を打設する作業をフーチング側から順次上方に積み上げ
    構築して中空橋脚を形成することを特徴とする橋脚施工
    方法。
    5. Each divided body obtained by dividing an outer cylinder and an inner cylinder made of a steel material in a circumferential direction is formed in a cylindrical shape in advance, and these are combined and arranged in a double cylindrical shape at a construction position to form an inner cylinder. A method for constructing a pier, comprising forming a hollow pier by stacking and constructing concrete placing work sequentially upward from the footing side.
JP10279039A 1998-09-30 1998-09-30 Bridge pier structure and construction method thereof Pending JP2000104218A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10279039A JP2000104218A (en) 1998-09-30 1998-09-30 Bridge pier structure and construction method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10279039A JP2000104218A (en) 1998-09-30 1998-09-30 Bridge pier structure and construction method thereof

Publications (2)

Publication Number Publication Date
JP2000104218A true JP2000104218A (en) 2000-04-11
JP2000104218A5 JP2000104218A5 (en) 2005-11-17

Family

ID=17605554

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10279039A Pending JP2000104218A (en) 1998-09-30 1998-09-30 Bridge pier structure and construction method thereof

Country Status (1)

Country Link
JP (1) JP2000104218A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002265251A (en) * 2001-03-09 2002-09-18 Taiheiyo Cement Corp Joint concrete
KR100491404B1 (en) * 2002-08-27 2005-05-25 지에스건설 주식회사 Construction member for covering hollowness of a pier and construction method thereof
JP2011185011A (en) * 2010-03-11 2011-09-22 Railway Technical Research Institute Method of constructing structure column
CN103392043A (en) * 2010-09-30 2013-11-13 斯博泰科有限公司 Upper structure for bridge
CN103397650A (en) * 2013-08-23 2013-11-20 中交第四航务工程勘察设计院有限公司 Large-scale steel cylinder cofferdam structure
KR101527472B1 (en) * 2013-11-04 2015-06-09 지에스건설 주식회사 Precat buit-up permanent form equipped with expanded space and construction method for pier using the same
CN105926446A (en) * 2016-05-04 2016-09-07 中国十九冶集团有限公司 Bridge pier column self-lifting outer frame formwork turnover closed beam

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002265251A (en) * 2001-03-09 2002-09-18 Taiheiyo Cement Corp Joint concrete
KR100491404B1 (en) * 2002-08-27 2005-05-25 지에스건설 주식회사 Construction member for covering hollowness of a pier and construction method thereof
JP2011185011A (en) * 2010-03-11 2011-09-22 Railway Technical Research Institute Method of constructing structure column
CN103392043A (en) * 2010-09-30 2013-11-13 斯博泰科有限公司 Upper structure for bridge
CN103392043B (en) * 2010-09-30 2015-09-02 斯博泰科有限公司 For the superstructure of bridge
CN103397650A (en) * 2013-08-23 2013-11-20 中交第四航务工程勘察设计院有限公司 Large-scale steel cylinder cofferdam structure
CN103397650B (en) * 2013-08-23 2015-08-19 中交第四航务工程勘察设计院有限公司 A kind of large-scale steel cylinder cofferdam structure
KR101527472B1 (en) * 2013-11-04 2015-06-09 지에스건설 주식회사 Precat buit-up permanent form equipped with expanded space and construction method for pier using the same
CN105926446A (en) * 2016-05-04 2016-09-07 中国十九冶集团有限公司 Bridge pier column self-lifting outer frame formwork turnover closed beam

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