JP2591422B2 - Steel pipe / concrete composite pier - Google Patents
Steel pipe / concrete composite pierInfo
- Publication number
- JP2591422B2 JP2591422B2 JP5110707A JP11070793A JP2591422B2 JP 2591422 B2 JP2591422 B2 JP 2591422B2 JP 5110707 A JP5110707 A JP 5110707A JP 11070793 A JP11070793 A JP 11070793A JP 2591422 B2 JP2591422 B2 JP 2591422B2
- Authority
- JP
- Japan
- Prior art keywords
- steel pipe
- concrete
- pier
- hollow steel
- concrete composite
- 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
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- Bridges Or Land Bridges (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、例えば高橋脚に適用
される鋼管・コンクリート複合構造橋脚に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steel pipe / concrete composite structure pier applied to, for example, a high pier.
【０００２】[0002]
【従来の技術】橋脚を構築するには、従来一般に、基礎
上に配筋される主筋に横筋を組み合わせて鉄筋を施工
し、これの外周に型枠を配置し、コンクリートを打設す
る方法が取られている。2. Description of the Related Art Conventionally, in order to construct a pier, a method of constructing a reinforcing bar by combining a horizontal bar with a main bar arranged on a foundation, placing a formwork on the outer periphery thereof, and placing concrete is conventionally used. Has been taken.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、この種
の施工方法では比較的高さが低い橋脚などには適合する
が、高橋脚の施工に適用した場合には、強度を確保する
上で多数の主筋や横方向の鉄筋や隅角部のハンチ筋、あ
るいは組立て用鉄筋などが輻湊し、配筋作業、特に高橋
脚を構築する場合には荷重が大きくなることから主筋が
多数列配されるが、そのときの横鉄筋の組立作業は困難
さを増すとともに、型枠材やセパレータの組立およびそ
の解体撤去、作業足場などの組立や解体撤去などの作業
工数が膨大となり、多人数の熟練労務者を必要とするた
め、短期急速施工の点において著しく不利であり、建設
コストも極めて高いものとなっていた。型枠の解体作業
を省略するためにＰＣａ型枠等の埋殺し型枠を用いるこ
ともあるが、型枠の組立、継ぎ目処理などの手間は除去
されない。However, this type of construction method is suitable for a pier having a relatively low height, but when applied to construction of a high pier, a large number of piers are required to secure the strength. The main bars, lateral bars, haunch bars at the corners, or assembling bars are congested, and when arranging, especially when constructing high piers, the load increases, so many main bars are arranged in rows. At that time, the assembling work of the horizontal reinforcing bars is becoming more difficult, and the number of man-hours for assembling and dismantling formwork materials and separators, disassembling and removing work scaffolds, etc. becomes enormous, and a large number of skilled workers Therefore, it is disadvantageous in terms of short-term rapid construction, and the construction cost is extremely high. In some cases, a buried form such as a PCa form is used to omit the work of dismantling the form. However, the labor of assembling the form and processing the seam is not eliminated.
【０００４】この発明は以上の問題を解決するものであ
って、その目的は、前記主筋及び横筋の組み合わせに替
え、単純な形状であっても十分な鉄筋量を確保できると
ともに、コンクリートと一体化することで所定の曲げせ
ん断耐力を確保できるようにした急速施工や自動化，省
力化に好適な鋼管・コンクリート複合構造橋脚を提供す
るものである。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to replace the combination of the main reinforcing bar and the horizontal bar with a sufficient amount of rebar even with a simple shape, and to integrate it with concrete. The present invention provides a steel pipe / concrete composite structure pier suitable for rapid construction, automation, and labor saving in which predetermined bending and shear strength can be secured.
【０００５】[0005]
【課題を解決するための手段】前記目的を達成するた
め、この発明は、基礎上に立設され、脚の断面形状に応
じた配列とした複数の中空鋼管を所要の高さまで縦に継
いでなる複数の鋼管群と、前記各中空鋼管の外周囲を一
体化するコンクリートとにより脚躯体を構成したことを
特徴とする。In order to achieve the above object, the present invention relates to a method of connecting a plurality of hollow steel pipes, which are erected on a foundation and arranged in accordance with the cross-sectional shape of a leg, vertically to a required height. A plurality of steel pipe groups and concrete that integrates the outer periphery of each of the hollow steel pipes constitute a leg body.
【０００６】またこの発明では、前記各中空鋼管からな
る鋼管群の外周囲を包囲した状態で構造断面の表面側に
沿って巻回されたＰＣストランドを備えることもでき
る。Further, in the present invention, it is possible to provide a PC strand wound along the surface side of the structural cross section while surrounding the outer circumference of the steel pipe group composed of the hollow steel pipes.
【０００７】[0007]
【作用】以上の構成によれば、各中空鋼管はクレーンで
吊り、急速に構築場所にセット出来、しかも所要の高さ
まで縦に継いで行けば良いため、一般に用いられる鉄筋
コンクリートの主筋および横筋の組み合わせによる構造
材の代替物としてその鋼材量に換算して用いることがで
きる。完成された躯体は外表面がコンクリートにて構成
されているのでメンテナンスフリーとなる。According to the above construction, each hollow steel pipe is hung by a crane, can be quickly set at a construction site, and can be connected vertically to a required height. Therefore, a combination of a main reinforcing steel bar and a horizontal reinforcing steel bar which is generally used. Can be used as a substitute for the structural material. The completed skeleton is maintenance-free because the outer surface is made of concrete.
【０００８】鋼管群の外周囲にＰＣストランドを配筋し
た場合は、鋼管群とその外周囲のコンクリートとの一体
性が高まり、構築される橋脚の強度を向上することがで
きるだけでなく、コンクリートのひびわれ防止や肌落ち
防止の機能を有する。When the PC strands are arranged around the outer periphery of the steel pipe group, the integrity of the steel pipe group and the concrete around the outer periphery is improved, and not only the strength of the bridge pier to be constructed can be improved, but also the concrete Has the function of preventing cracking and skin dropping.
【０００９】[0009]
【実施例】以下、この発明の一実施例を図面を用いて詳
細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings.
【００１０】図１（ａ），（ｂ）、図２はこの発明にか
かる鋼管・コンクリート複合構造の高橋脚を示すもので
ある。図における橋脚は、基礎１の上部に立設され、脚
の断面形状に応じた配列とした複数の中空鋼管２を所要
の高さまで縦に継いだ複数の鋼管群２Ａと、前記各中空
鋼管２の外周囲を一体に埋設したコンクリートＣとによ
り躯体３を構成したものであり、躯体３は前記基礎１に
一体化される下部躯体３ａと、構造の主要部分を占める
中間躯体３ｂと、橋桁４が設置される上部躯体３ｃとに
区分けされる。FIGS. 1 (a), 1 (b) and 2 show a high pier of a steel pipe / concrete composite structure according to the present invention. The bridge pier in the figure is erected on the upper part of the foundation 1, and a plurality of steel pipe groups 2A vertically connecting a plurality of hollow steel pipes 2 arranged in accordance with the cross-sectional shape of the pier to a required height; Is constructed by concrete C in which the outer periphery is integrally buried, the lower frame 3a being integrated with the foundation 1, an intermediate frame 3b occupying a main part of the structure, and a bridge beam 4 Is divided into the upper frame 3c on which is installed.
【００１１】下部躯体３ａおよび上部躯体３ｃを構成す
る中空鋼管としては、鋼管自体の曲げ強度を高めるとと
もに前記基礎１または橋桁４との付着強度を高めるた
め、図６にその断面図を示すように、鋼管２の外周にス
パイラル状のリブ２ａが設けられた外面リブ付き鋼管が
用いられるとともに、該鋼管２Ｂの内部までコンクリー
トＣが打設されている。外面リブ付き鋼管２Ｂは、例え
ば長手方向に沿って複数のリブを一面に形成した圧延鋼
帯をスパイラル状に造管成型した後、鋼帯同士の継ぎ目
を内外面から溶接し、所定寸法に切断することにより得
られるものである。このような外面リブ付き鋼管は、そ
の板厚を６ｍｍから２２ｍｍ程度、リブのピッチを４０
ｍｍ以下、リブの高さを２．５ｍｍ以上とすることが好
ましく、定着長は、中空鋼管２とコンクリートＣとの許
容付着応力度から決定される。なお、中間躯体３ｂにお
ける中空鋼管２の内部は中空とされており、このために
上部側に位置する各中空鋼管２の内側には予め蓋等（図
示しない）が設けられる。図７（ａ），（ｂ）は下部躯
体３ａの拡大された断面図を示し、同図では、外面リブ
付き鋼管２ＢとコンクリートＣとの付着強度をさらに高
め、コンクリートの割裂破壊を確実に防止するため、基
礎１中に埋設される中空鋼管２Ｂの外周に近接して補強
用の縦筋５Ａが配筋され、該縦筋５Ａの外側に密着して
スパイラル筋５Ｂが配筋されているとともに、縦筋５Ａ
の上下端部との間で所定の定着長をもった横筋５Ｃが配
筋されている。 Constituting the lower frame 3a and the upper frame 3c
As a hollow steel pipe, the bending strength of the steel pipe itself should be increased.
In order to increase the bonding strength with the foundation 1 or the bridge girder 4
Therefore, as shown in the sectional view of FIG.
An outer ribbed steel pipe provided with a spiral rib 2a
The concrete is used to the inside of the steel pipe 2B.
C is cast. The outer ribbed steel pipe 2B is, for example,
Rolled steel with multiple ribs formed on one surface along the longitudinal direction
Spiral forming of the strip into a tube, then the joint between the steel strips
Is welded from the inner and outer surfaces and cut to predetermined dimensions.
It is something that can be done. Such a steel pipe with external ribs is
The thickness of the rib is about 6 to 22 mm, and the pitch of the rib is 40.
mm or less, and the height of the rib is preferably 2.5 mm or more.
More preferably, the anchoring length is between the hollow steel pipe 2 and the concrete C.
It is determined from the degree of adhesive stress. Incidentally, the interior of the hollow steel pipe 2 in the intermediate precursor 3b is a hollow, pre-lids on the inside of the hollow steel tube 2 located on the upper side (not shown) provided for this. FIGS. 7A and 7B show the lower frame.
FIG. 3 shows an enlarged cross-sectional view of the body 3a, in which external ribs are shown.
The bonding strength between the steel pipe 2B and the concrete C is further increased.
In order to reliably prevent split fracture of concrete,
Reinforced near the outer periphery of hollow steel pipe 2B embedded in foundation 1
Vertical streaks 5A are arranged, and are closely attached to the outside of the vertical streaks 5A.
Spiral streaks 5B are arranged and longitudinal streaks 5A
A horizontal streak 5C having a predetermined fixing length is arranged between
Has been streaked.
【００１２】さらに躯体３の外周部の内側には、高橋脚
の強度を向上するとともに、コンクリートのひびわれや
肌落ちを防止するための縦横の配筋構造の鉄筋５が配筋
されている。Further, inside the outer peripheral portion of the skeleton 3, reinforcing bars 5 having a vertical and horizontal reinforcing bar structure for improving the strength of the high pier and preventing cracks and falling of the concrete are provided.
【００１３】以上の橋脚の施工方法は、まず図３に示す
ように基礎１上に橋脚の断面形状に沿った配列で複数の
中空鋼管２を立設する。次いで通常の型枠などを用いて
中空鋼管２の下部内側及びその周囲にコンクリートＣを
打設し、前記基礎１に一体化した下部躯体３ａを構築す
る。In the above-described method of constructing a pier, first, as shown in FIG. 3, a plurality of hollow steel pipes 2 are erected on a foundation 1 in an array along the cross-sectional shape of the pier. Next, concrete C is cast inside and around the lower portion of the hollow steel pipe 2 using a normal formwork or the like, thereby constructing a lower frame 3a integrated with the foundation 1.
【００１４】各中空鋼管２は一定の長さ寸法であり、下
部躯体３ａの近傍に平行に立設されたクレーン７によっ
て吊り込むことができ、下部躯体３ａ上に所要の高さと
なるまで各鋼管２を順次吊り込みつつ継いで行く。この
際接合部には鋼管接続用の作業足場６を配置し、溶接ま
たは他の機械的な接続手段によって鋼管２同士を縦に継
ぐことになる。以上の接合作業を所要の設計高さまで行
うことによって、鋼管群２Ａが完成する。Each hollow steel pipe 2 has a fixed length and can be suspended by a crane 7 erected in parallel in the vicinity of the lower body 3a, and each steel pipe 2 has a required height on the lower body 3a. 2 and hang them in sequence. At this time, a work scaffold 6 for connecting the steel pipes is arranged at the joint, and the steel pipes 2 are vertically connected to each other by welding or other mechanical connecting means. By performing the above joining operation to a required design height, the steel pipe group 2A is completed.
【００１５】次に図４，５に示すように、滑動型枠装置
７を構造物の周囲にセットする。滑動型枠装置７は、前
記中空鋼管群２Ａの頂部に配置された反力台９にＰＣ鋼
線などの吊下手段Ｗを介して吊下された作業架台１０
と、作業架台１０の下部に固定配置された滑動型枠１１
とを備えたものである。Next, as shown in FIGS. 4 and 5, the sliding form device 7 is set around the structure. The sliding form device 7 includes a work platform 10 suspended via a suspension means W such as a PC steel wire on a reaction table 9 disposed at the top of the hollow steel pipe group 2A.
And a sliding form 11 fixedly arranged at the lower part of the work base 10
It is provided with.
【００１６】滑動型枠１１は、前記躯体３の外形に応じ
た内側形状を有するもので、型枠１１の内側にコンクリ
ートＣを打設しつつ前記吊下手段Ｗに設けたジャッキ等
により前記反力台９に反力を取りながら作業架台１０を
上昇させることにより、固化したコンクリートＣは順次
型枠１１の下部側から脱型され、下部側コンクリート躯
体３ａに各中空鋼管２を外周囲に一体化した中間躯体３
ｂ，上部躯体３ｃを連続して構築する。The sliding form 11 has an inner shape corresponding to the outer shape of the skeleton 3. The concrete C is cast inside the form 11 while the counterpart is formed by a jack or the like provided on the suspension means W. By raising the work platform 10 while applying a reaction force to the power platform 9, the solidified concrete C is sequentially released from the lower side of the formwork 11, and the hollow steel pipes 2 are integrated with the lower concrete body 3a around the outside. Intermediate body 3
b, Build the upper frame 3c continuously.
【００１７】作業架台１０の上部には主筋組立用の主筋
架台１２が固定配置され、この架台１２を利用して前記
コンクリートの打設に先駆けて中空鋼管群２Ａの外周囲
であって躯体３の表面に近い側に前記鉄筋５を構成する
多数の主筋５ａが鉛直に建込まれ、上部側で順次接続さ
れる。A main bar base 12 for assembling the main bar is fixedly arranged on the upper part of the work base 10, and the base 12 is used to surround the hollow steel pipe group 2A and to prevent A large number of main reinforcing bars 5a constituting the reinforcing bar 5 are vertically built on the side close to the surface, and are sequentially connected on the upper side.
【００１８】さらに作業架台１０上には鋼線リールスタ
ンド１３が配置され、この鋼線リールスタンド１３から
は前記鉄筋５の横筋を構成するＰＣストランド５ｂが繰
出され、前記作業架台１０の下部に周回可能に設けられ
た巻き付け装置１４を介して横筋としてのＰＣストラン
ド５ｂが主筋５ａの外周囲を包囲した状態で、かつ、構
造断面の表面側に沿って自動的に密な状態で無端状の螺
旋を描くように巻き付けられる。Further, a steel wire reel stand 13 is arranged on the work base 10, and from this steel wire reel stand 13, a PC strand 5b constituting a horizontal bar of the reinforcing bar 5 is fed out and circulates below the work base 10. An endless spiral in a state in which the PC strand 5b as a horizontal streak surrounds the outer periphery of the main streak 5a via the wrapping device 14 provided so as to be able to be automatically provided along the surface side of the structural cross section. It is wound like drawing.
【００１９】なお、図中符号１６は地表部に立設される
作業員昇降用のエレベータであり、このエレベータ１６
は作業架台１０の上昇動作に応じて上方に延長される。Reference numeral 16 in the figure denotes an elevator for elevating and lowering a worker standing on the ground surface.
Is extended upward in accordance with the raising operation of the work base 10.
【００２０】したがって、主筋５ａの配筋作業，ＰＣス
トランド５ｂの配筋作業及びコンクリートＣの打設と滑
動型枠１０の脱型作業は、滑動型枠装置８の上昇速度に
連繋して連続的に行われ、中間躯体３ｂ及びこれに引き
続き上部躯体３ｃが最上部まで施工されると、高橋脚の
躯体３が完成する。Accordingly, the work of arranging the main reinforcement 5a, the work of arranging the PC strand 5b, the placing of concrete C, and the work of removing the sliding form 10 are continuously performed in conjunction with the rising speed of the sliding form apparatus 8. When the intermediate frame 3b and the upper frame 3c are constructed up to the uppermost portion, the frame 3 of the high pier is completed.
【００２１】鋼管群の外周囲にはＰＣストランド５ｂが
巻回されており、鋼管群２Ａとその外周囲に埋設される
コンクリートとの一体性が高まり橋脚の強度を向上する
ことができるだけでなく、コンクリートのひび割れや肌
落ちを防止することができる。A PC strand 5b is wound around the outer circumference of the steel pipe group, so that the steel pipe group 2A and the concrete buried in the outer circumference are improved in integrity and the strength of the pier can be improved. Cracking and skin fall of concrete can be prevented.
【００２２】躯体３の構築が完成した時点で、前記滑動
型枠装置８は地上部に吊り下ろされる。When the construction of the frame 3 is completed, the sliding form device 8 is suspended from the ground.
【００２３】なお、以上の実施例では、躯体３の表面に
近い位置に鉄筋を構成する主筋５ａを建込むとともに、
横筋を構成するＰＣストランド５ｂを主筋５ａに巻回し
た。この主筋５ａは、コンクリートと一体化される鋼管
群２Ａにより躯体３の構造強度上からは必ずしも必要で
ない場合が生じるため、この場合には主筋５ａはごく少
量で良いか、あるいは省略することもできる。主筋５ａ
が必要でない場合には、コンクリートの表面のひびわれ
防止や肌落ち防止のためにある程度の配筋を施す必要が
あるが、この場合の配筋としてＰＣストランド５ｂを利
用することができるので、該ストランド５ｂは主筋５ａ
の有無に拘らず常に使用することもできる。In the above embodiment, the main reinforcing bar 5a constituting the reinforcing bar is erected at a position close to the surface of the skeleton 3.
The PC strand 5b constituting the horizontal streak was wound around the main streak 5a. The main reinforcement 5a may not always be necessary from the viewpoint of the structural strength of the skeleton 3 due to the steel pipe group 2A integrated with the concrete. In this case, the main reinforcement 5a may be a very small amount or may be omitted. . Main bar 5a
When it is not necessary, it is necessary to provide a certain amount of reinforcement to prevent cracks on the surface of the concrete and to prevent the skin from falling off. However, the PC strand 5b can be used as the reinforcement in this case. 5b is the main muscle 5a
It can always be used regardless of the presence or absence.
【００２４】[0024]
【発明の効果】以上実施例によって詳細に説明したよう
に、この発明にかかる鋼管・コンクリート複合構造橋脚
にあっては、各中空鋼管はクレーンで吊り、急速に構築
場所にセット出来、しかも所要の高さまで縦に継いで行
けば良いため、一般に用いられる鉄筋コンクリートの主
筋および横筋の組み合わせによる構造材の代替物として
その鋼材量に換算して用いることができ、各中空鋼管か
らなる鋼管群は、単純断面であるから滑動型枠等を用い
て連続的にコンクリートを打設できるため、急速施工
や、施工の自動化，省力化に好適である。As explained in detail in the above embodiments, in the steel pipe / concrete composite structure pier according to the present invention, each hollow steel pipe is hung by a crane, can be quickly set at a construction site, and required. Since it is only necessary to vertically connect to the height, it can be used as a substitute for structural material by combining the main reinforcing bars and horizontal reinforcing bars of commonly used reinforced concrete in terms of the amount of steel material, and the steel pipe group consisting of each hollow steel pipe is simple Since it is a cross section, concrete can be continuously poured using a sliding formwork or the like, which is suitable for rapid construction, automation of construction, and labor saving.
【００２５】そして、得られた躯体は、中空鋼管の径や
肉厚に応じて十分な鉄筋量を確保できるとともに、コン
クリートの断面積に応じた所定の曲げせん断耐力を確保
できるため、施工強度上も極めて有利であり、さらには
種々の断面設計条件に対してコンクリート断面積や鋼管
径、肉厚などによって対処できるため、従来に比べて施
工の融通性に富む。The obtained skeleton can secure a sufficient amount of rebar according to the diameter and wall thickness of the hollow steel pipe, and can secure a predetermined bending-shear strength corresponding to the cross-sectional area of the concrete. Is also very advantageous, and since various cross-sectional design conditions can be dealt with by the concrete cross-sectional area, the diameter of the steel pipe, the wall thickness, and the like, the construction is more flexible than in the past.
【００２６】さらに実施例に示すように、ＰＣストラン
ドを配筋した場合は、構築される橋脚の強度を向上する
ことができるだけでなく、コンクリートのひびわれ防止
や肌落ち防止の機能を有する。また、ＰＣストランド
は、鋼管群によって構成される断面が単純断面であるの
で配筋作業が容易であり、自動巻き付け機を利用するこ
ともでき、この場合はさらに配筋作業が容易となる。Further, as shown in the embodiment, when the PC strands are arranged, not only the strength of the bridge pier to be constructed can be improved, but also the function of preventing the concrete from cracking and preventing skin from falling off. In addition, the PC strand has a simple cross section constituted by a group of steel pipes, so that the rebar arrangement work is easy, and an automatic winding machine can be used. In this case, the rebar arrangement work is further facilitated.
【図１】この発明にかかる高橋脚を示し、（ａ）は正面
断面図、（ｂ）は側面図である。FIG. 1 shows a tall pier according to the present invention, wherein (a) is a front sectional view and (b) is a side view.
【図２】図１（ａ）のＡ−Ａ線における断面図である。FIG. 2 is a cross-sectional view taken along the line AA of FIG.
【図３】中空鋼管からなる鋼管群の構築手順を示す概念
図である。FIG. 3 is a conceptual diagram showing a procedure for constructing a group of steel pipes composed of hollow steel pipes.
【図４】同高橋脚の構築手順の全体的な概念説明図であ
る。FIG. 4 is an overall conceptual explanatory view of a procedure for constructing the tall pier.
【図５】同要部拡大図である。FIG. 5 is an enlarged view of the main part.
【図６】FIG. 6 外面リブ付き鋼管の拡大された断面図である。It is the expanded sectional view of the steel pipe with an outer surface rib.
【図７】FIG. 7
（ａ）は下部躯体の平断面図、（ｂ）は下部躯(A) is a plan sectional view of the lower frame, and (b) is a lower frame.
体の縦断面図である。It is a longitudinal section of a body.
１ 基礎 ２ 中空鋼管 ２Ａ 中空鋼管群２Ｂ 外面リブ付き鋼管 ２ａ リブ ３ 躯体 ３ａ 下部躯体 ３ｂ 中間躯体 ３ｃ 上部躯体 ５ 鉄筋 ５ａ 主筋（縦筋） ５ｂ 横筋（ＰＣストランド） Ｃ コンクリートDESCRIPTION OF SYMBOLS 1 Foundation 2 Hollow steel pipe 2A Hollow steel pipe group 2B Steel pipe with outer rib 2a Rib 3 Body 3a Lower body 3b Intermediate body 3c Upper body 5 Reinforcing bar 5a Main bar (vertical bar) 5b Lateral bar (PC strand) C Concrete
───────────────────────────────────────────────────── フロントページの続き (72)発明者 加藤 敏明 東京都千代田区神田司町２丁目３番地 株式会社大林組東京本社内 (56)参考文献 実開 昭51−149118（ＪＰ，Ｕ) 実開 平２−106007（ＪＰ，Ｕ) ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Toshiaki Kato 2-3-3 Kandaji-cho, Chiyoda-ku, Tokyo Obayashi Corporation Tokyo Head Office 2-106007 (JP, U)
Claims (2)
た配列とした複数の中空鋼管を所要の高さまで縦に継い
でなる複数の鋼管群と、前記各中空鋼管の外周囲を一体
化するコンクリートとにより脚躯体を構成したことを特
徴とする鋼管・コンクリート複合構造橋脚。1. A plurality of steel pipe groups, which are erected on a foundation and are vertically connected to a plurality of hollow steel pipes arranged in accordance with a cross-sectional shape of a leg to a required height, and an outer periphery of each of the hollow steel pipes. A steel pipe / concrete composite structure pier characterized by a leg body composed of integrated concrete.
を包囲した状態で構造断面の表面側に沿って巻回された
ＰＣストランドを備えたことを特徴とする請求項１記載
の鋼管・コンクリート複合構造橋脚。2. The steel pipe according to claim 1, further comprising a PC strand wound along a surface side of a structural section in a state surrounding the outer circumference of the steel pipe group including the hollow steel pipes. Concrete composite structure pier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5110707A JP2591422B2 (en) | 1993-05-12 | 1993-05-12 | Steel pipe / concrete composite pier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5110707A JP2591422B2 (en) | 1993-05-12 | 1993-05-12 | Steel pipe / concrete composite pier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06322720A JPH06322720A (en) | 1994-11-22 |
| JP2591422B2 true JP2591422B2 (en) | 1997-03-19 |
Family
ID=14542427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5110707A Expired - Lifetime JP2591422B2 (en) | 1993-05-12 | 1993-05-12 | Steel pipe / concrete composite pier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2591422B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002327406A (en) * | 2001-05-01 | 2002-11-15 | Ohbayashi Corp | Wind-resistant design method in steel-pipe structure |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6180775B2 (en) * | 2013-04-10 | 2017-08-16 | 株式会社大林組 | Steel pipe / concrete composite structure pier |
| JP2013155600A (en) * | 2013-04-10 | 2013-08-15 | Ohbayashi Corp | Bridge pier of composite steel pipe-concrete structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51149118U (en) * | 1975-05-23 | 1976-11-29 |
-
1993
- 1993-05-12 JP JP5110707A patent/JP2591422B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002327406A (en) * | 2001-05-01 | 2002-11-15 | Ohbayashi Corp | Wind-resistant design method in steel-pipe structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06322720A (en) | 1994-11-22 |
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