JP2004003250A - Structure and construction method of structure - Google Patents

Structure and construction method of structure Download PDF

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JP2004003250A
JP2004003250A JP2002229536A JP2002229536A JP2004003250A JP 2004003250 A JP2004003250 A JP 2004003250A JP 2002229536 A JP2002229536 A JP 2002229536A JP 2002229536 A JP2002229536 A JP 2002229536A JP 2004003250 A JP2004003250 A JP 2004003250A
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cylindrical portion
connecting rod
concrete
adjacent
engaged
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JP4052635B2 (en
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Terumasa Sasaya
笹谷　輝勝
Katsusato Hirano
平野　勝識
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Fujita Corp
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Fujita Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a firm structure by mutually connecting adjacent elements from the inside of the element without lowering strength of the element. <P>SOLUTION: The structure 10 is composed of a plurality of column bodies 12. The column bodies 12 are composed of element assemblies 14 and concrete C filled into the inside. Each element assembly 14 is composed of a number of elements 18 coaxially connected. The adjacent element assemblies 14 are arranged so that a part of each cylindrical part 1802 of the elements 18 composing the other element assembly 14 is engaged with each engagement recess part 1804 of the element 18 composing one element assembly 14. An element connection steel material 16 is arranged so as to penetrate the engagement recess part 1804 every adjacent element assembly 14 at a plurality of parts at an interval in the longitudinal direction of the element assembly 14. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は構造体および構造体の構築工法に関する。
【０００２】
【従来の技術】
エレメントにより構築される構造体が、例えば、地中に設けられる土圧壁である場合を考えると、大断面で中距離のトンネルを工事しようとする場合、従来、断面が四角形の筒状のエレメントを用いるＵＲＴ工法が採用されている。
しかしながらこのＵＲＴ工法は、エレメントの前端に配置したオーガにより掘削を行ない、円形の孔が掘削されるため、エレメントの四隅は孔が掘削されていない地盤部分に対して無理押しすることになり、トンネル長さは１００ｍ前後が限界となる。
【０００３】
【発明が解決しようとする課題】
そこで、図１０に示すように、エレメント１１２として、断面が円筒状の円筒部１１２Ａと、この円筒部１１２Ａの一側がその全長にわたって円筒部１１２Ａの内側に窪んだ係合凹部１１２Ｂとからなるものを用いることが考えられる。
すなわち、円筒部１１２Ａと係合凹部１１２Ｂとからなる複数の中空状のエレメント１２を、構築すべきトンネルの外殻に沿って円筒部１１２Ａを係合凹部１１２Ｂに係合させつつ地中に埋設し前記トンネルの延在方向に延在させエレメント集合体１２０を作ることが考えられる。
【０００４】
具体的には、円形掘削機などにより発進立坑から到達立坑にわたり円形の孔を掘削すると共にその背後でエレメント１１２を順次継ぎ足して掘削された孔内に配設しエレメント集合体１２０Ａを作り、次の掘削で、前記エレメント１１２の係合凹部１１２Ｂ内を通るように円形の孔を掘削すると共にその背後で先に配設されたエレメント１１２の係合凹部１１２Ｂに円筒部１１２Ａを係合させながら、エレメント１１２を順次継ぎ足して掘削された孔内に配設しエレメント集合体１２０Ｂを作ることが考えられる。
このような工法によれば、掘削された円形の孔へのエレメント１１２の挿入も円滑に行なわれ、また、大きな有効桁高を確保することが可能となる。
しかしながら、各エレメント集合体１２０の内部にコンクリートを充填して構成された柱体の相互は、円筒部１１２Ａと係合凹部１１２Ｂとが単に係合しているのみであるため、構築された土圧壁はその耐力に劣る不具合が考えられる。
【０００５】
そこで、地中に埋設されたエレメント集合体１２０の延在方向とほぼ直交する方向で円筒部１１２Ａと係合部１１２Ｂとが係合した箇所を通るように隣り合うエレメント集合体１２０の内部にわたってエレメント連結用棒状部材１１４を挿通し、エレメント集合体１２０相互を強固に連結することが考えられる。
しかしながら、エレメント連結用棒状部材１１４の挿通を、エレメント集合体１２０の内部から行なおうとすると、エレメント連結用棒状部材１１４の長さはエレメント１１２の内径により制限される不具合が生じ、また、エレメント集合体１２０の外部から行なおうとすると、構築すべき構造物の側部に広大な空間が必要となる不具合が生じる。
【０００６】
また、エレメント集合体１２０の内部からエレメント連結用棒状部材１１４を、３つあるいは４つ以上の複数のエレメント集合体１２０の内部にわたって挿通させる場合、エレメント集合体１２０の延在方向とほぼ直交する方向からではなく斜め方向からエレメント連結用棒状部材１１４を挿通させる必要があるため、エレメント連結用棒状部材１１４を挿通させるための挿通孔が長孔状となり、エレメント１１２の強度が低下し、加工コストが嵩む不具合が生じる。
この不具合は、上記の土圧壁の場合のみならず、円筒部と係合凹部とからなる複数の中空状のエレメントにより地上に構造体を構築する場合にも同様に生じる。
本発明は前記事情に鑑み案出されたものであって、本発明の目的は、エレメントの強度を低下させることなく、また、加工コストを上昇させることなく、エレメントの内部から隣り合うエレメント相互を簡単に連結できる構造体およびその構築工法を提供することにある。
【０００７】
【課題を解決するための手段】
前記目的を達成するため本発明は、ほぼ直線状に延在するエレメント集合体と、前記エレメント集合体の内部に充填されたコンクリートとからなる複数の柱体が、それらの長さ方向を平行させて並べられ相互に連結された構造体であって、前記エレメント集合体は、円筒部と、この円筒部の少なくとも一側が前記円筒部の全長にわたって円筒部の内側に窪んだ係合凹部とからなる中空状の複数のエレメントが同軸上でほぼ直線状に延在するように連結されて構成され、前記隣り合う柱体は、それら隣り合うエレメント集合体の各エレメントの係合凹部と円筒部とが係合した状態で並べられ、前記係合凹部と円筒部とが係合した箇所を貫通して隣り合う２つのエレメント集合体の内部に収容できる長さのエレメント連結用棒状部材が複数設けられ、前記柱体を構成するエレメント集合体の各エレメントの延在方向の複数箇所において前記柱体の延在方向とほぼ直交する方向で前記係合凹部と円筒部とが係合した箇所を通るよう前記エレメント連結用棒状部材が隣り合うエレメントの内部にわたって配設されていることを特徴とする。
また、本発明は、ほぼ直線状に延在するエレメント集合体と、前記エレメント集合体の内部に充填されたコンクリートとからなる複数の柱体が、それらの長さ方向を平行させて並べられ相互に連結された構造体であって、前記エレメント集合体は、円筒部と、この円筒部の少なくとも一側が前記円筒部の全長にわたって円筒部の内側に窪んだ係合凹部とからなる中空状の複数のエレメントが同軸上でほぼ直線状に延在するように連結されて構成され、前記隣り合う柱体は、それら隣り合うエレメント集合体の各エレメントの係合凹部と円筒部とが係合した状態で並べられ、前記係合凹部と円筒部とが係合した箇所を貫通する長さの強度と剛性を有する連結部材が複数設けられ、前記複数の連結部材は、それぞれ前記係合した係合凹部と円筒部箇所にわたり貫通して配設され、隣り合う各エレメントの内部においてその長手方向の両端が前記連結部材に連結されてエレメント連結用棒状部材が配設され、これら隣り合うエレメントの内部の全てのエレメント連結用棒状部材は前記柱体の延在方向とほぼ直交する方向で同一直線状にあるいは同一曲線状に延在するように配置され、このように配置されたエレメント連結用棒状部材は、前記柱体を構成するエレメント集合体の各エレメントの延在方向の複数箇所を通るように設けられていることを特徴とする。
また、本発明は、円筒部と、この円筒部の少なくとも一側が前記円筒部の全長にわたって円筒部の内側に窪んだ係合凹部とからなる複数の中空状のエレメントを同軸上で連結してほぼ直線状に延在するエレメント集合体を複数作り、それらエレメント集合体の係合凹部と円筒部とを係合させて複数のエレメント集合体を並べる工程と、前記エレメント集合体の延在方向とほぼ直交する方向で前記係合凹部と円筒部とが係合した箇所を通るように隣り合うエレメント集合体の内部にわたってエレメント連結用棒状部材を配設する工程と、前記エレメント集合体の内部にコンクリートを充填しエレメント集合体とコンクリートからなる柱体を形成する工程とを有する構造体の構築工法であって、前記エレメント連結用棒状部材を、前記係合凹部と円筒部とが係合した箇所を貫通して隣り合う２つのエレメント集合体の内部に収容できる長さで形成し、前記コンクリートを充填する前に、前記係合凹部と円筒部とが係合した箇所を通るように隣り合う２つのエレメント集合体の各エレメントの延在方向の複数箇所においてそれらの内部にわたり前記エレメント連結用棒状部材を挿通させて仮固定し、このようにして隣り合う２つのエレメント集合体毎に前記エレメント連結用棒状部材を挿通させ仮固定したのちエレメント集合体の内部にコンクリートを充填して柱体を形成するようにしたことを特徴とする。
また、本発明は、円筒部と、この円筒部の少なくとも一側が前記円筒部の全長にわたって円筒部の内側に窪んだ係合凹部とからなる複数の中空状のエレメントを同軸上で連結してほぼ直線状に延在するエレメント集合体を複数作り、それらエレメント集合体の係合凹部と円筒部とを係合させて複数のエレメント集合体を並べる工程と、前記エレメント集合体の延在方向とほぼ直交する方向で前記係合凹部と円筒部とが係合した箇所を通るように隣り合うエレメント集合体の内部にわたってエレメント連結用棒状部材を配設する工程と、前記エレメント集合体の内部にコンクリートを充填しエレメント集合体とコンクリートからなる柱体を形成する工程とを有する構造体の構築工法であって、前記エレメント連結用棒状部材を、前記係合凹部と円筒部とが係合した箇所を貫通して隣り合う２つのエレメント集合体の内部に収容できる長さで形成し、前記コンクリートを充填する前に、前記係合凹部と円筒部とが係合した箇所を通るように隣り合う２つのエレメント集合体の各エレメントの延在方向の複数箇所においてそれらの内部にわたり前記エレメント連結用棒状部材を挿通させて仮固定し、このようにして隣り合う２つのエレメント集合体に前記エレメント連結用棒状部材を挿通させ仮固定したのち隣り合う２つのエレメント集合体のうちの一方のエレメント集合体の内部にコンクリートを充填し、前記隣り合う２つのエレメント集合体のうちの他方のエレメント集合体と、このエレメント集合体に隣り合うエレメント集合体との内部にわたり前記係合凹部と円筒部とが係合した箇所を通るように前記エレメント連結用棒状部材を挿通させ仮固定したのち前記他方のエレメント集合体の内部にコンクリートを充填し、このようにして隣り合う２つのエレメント集合体毎に前記鋼材を挿通させ仮固定したのちエレメント集合体の内部に順次コンクリートを充填して柱体を形成するようにしたことを特徴とする。
【０００８】
本発明ではエレメント連結用棒状部材の長さを短縮した。
これによりエレメント連結用棒状部材の配設を簡単に行なえ、工期の短縮化を図る上で、また、コストダウンを図る上で有利となる。
また、エレメント連結用棒状部材を挿通させるための挿通孔を小径化でき、エレメントの強度ひいてはエレメント集合体、構造体の強度を確保する上でも有利となる。
【０００９】
また、本発明は、ほぼ直線状に延在するエレメント集合体と、前記エレメント集合体の内部に充填されたコンクリートとからなる複数の柱体が、それらの長さ方向を平行させて並べられ相互に連結された構造体であって、前記エレメント集合体は、円筒部と、この円筒部の少なくとも一側が前記円筒部の全長にわたって円筒部の内側に窪んだ係合凹部とからなる中空状の複数のエレメントが同軸上でほぼ直線状に延在するように連結されて構成され、前記隣り合う柱体は、それら隣り合うエレメント集合体の各エレメントの係合凹部と円筒部とが係合した状態で並べられ、前記係合凹部と円筒部とが係合した箇所を貫通する長さの強度と剛性を有するワイヤ挿通部材が複数設けられ、前記複数のワイヤ挿通部材は、それぞれ前記係合した係合凹部と円筒部箇所にわたって貫通するように配設され、可撓可能な鋼材製のワイヤが、前記柱体の延在方向とほぼ直交する方向で前記ワイヤ挿通部材を通って前記複数のエレメント内部にわたって挿通され、このように挿通されたワイヤが、前記柱体を構成するエレメント集合体の各エレメントの延在方向の複数箇所を通るように設けられていることを特徴とする。
このような発明によれば、ワイヤとワイヤ挿通部材とによりエレメント集合体相互が強固に連結され、また、ワイヤは可撓可能であるためその配設を簡単に行なえ、工期の短縮化を図る上で、また、コストダウンを図る上で有利となる。
また、ワイヤ挿通部材を挿通させるための挿通孔を小径化でき、エレメントの強度ひいてはエレメント集合体、構造体の強度を確保する上でも有利となる。
【００１０】
【発明の実施の形態】
以下、本発明の実施の形態を図面を参照して説明する。
図１（Ａ）、（Ｂ）は本発明の第１の実施の形態に係る構造体の断面正面図を示す。
実施の形態に係る構造体１０は、地上において互いに平行して水平方向に延在し相互に連結された複数の柱体１２から構成されている。
各柱体１２は、エレメント集合体１４と、このエレメント集合体１４の内部に充填されたコンクリートＣにより構成され、隣り合うエレメント集合体１４毎にエレメント連結用棒状部材１６が貫通して配設されている。
前記各エレメント集合体１４は、多数のエレメント１８が同軸上に連結されることで構成され、エレメント１８は、円筒部１８０２と、この円筒部１８０２の少なくとも一側が前記円筒部１８０２の全長にわたって円筒部１８０２の内側に窪んだ係合凹部１８０４とで中空状に形成されている。
【００１１】
隣り合うエレメント集合体１４相互は、一方のエレメント集合体１４を構成するエレメント１８の各係合凹部１８０４に、他方のエレメント集合体１４を構成するエレメント１８の各円筒部１８０２の一部が係合されるように配置されている。
前記エレメント連結用棒状部材１６は、前記各エレメント集合体１４の長手方向に間隔をおいた複数箇所に、前記柱体１２の延在方向とほぼ直交する方向でエレメント１８の係合凹部１８０４を通って各エレメント集合体１４の内部間を貫通するように配設されている。
そして、これらエレメント集合体１４の内部にコンクリートＣが充填され、相互に連結された複数の柱体１２が形成されている。
【００１２】
より詳細に説明すると、エレメント１８の円筒部１８０２は、鋼管の一側を切り欠くことで構成されている。
前記係合凹部１８０４は、円筒部１８０２の内側に配置され凹部の底部を構成する鋼板製の仕切り板１８１０と、仕切り板１８１０の両側から起立して仕切り板１８１０から突出する円筒部１８０２部分と、仕切り板１８１０の両側から起立して仕切り板１８１０から突出する円筒部１８０２部分に連結される鋼板製の側板１８１２とで構成されている。
このような構成からなる係合凹部１８０４に、隣に配置されるエレメント１８の円筒部１８０２の一部が収容された状態で、円筒部１８０２の両端に位置する円筒部１８０２の縁が、隣に配置されるエレメント１８の円筒部１８０２に当たり、仕切り板１８１０の外側と、隣に配置されるエレメント１８の円筒部１８０２の外側との間に閉塞された閉塞空間１８５０が形成されるように構成されている。
【００１３】
前記仕切り板１８１０に対向する円筒部１８０２の箇所には、エレメント連結用棒状部材１６を挿通する棒材挿通孔２０が周方向（上下方向）に間隔をおいて設けられ、これら棒材挿通孔２０に対応して仕切り板１８１０にも棒材挿通孔２０が互いに間隔をおいて設けられている。そして、円筒部１８０２と仕切り板１８１０とに設けられた棒材挿通孔２０は、一つのエレメント１８においてその長手方向に間隔をおいた複数箇所においてそれぞれ設けられている。
【００１４】
次に、構造体１０の構築手順を説明する。
まず、一つのエレメント集合体１４Ａが複数または多数のエレメント１８により構築され、次に、隣のエレメント集合体１４Ｂが複数または多数のエレメント１８を用いて構築され、このように隣のエレメント集合体１４Ｃ、…へと順次構築されていく。
一つのエレメント集合体１４Ａを構築する場合には、まず、円筒部１８０２と係合凹部１８０４とがそれぞれ連続して延在するようにエレメント１８が水平方向でほぼ直線状に（同軸上に）並べられ、連結されることが行われる。なお、本発明においてほぼ直線状とは、直線状のみならず大きな曲率半径の曲線状をも含む概念である。エレメント１８相互の連結は、例えば、エレメント１８の長手方向の一方の端部を縮径しておき、隣り合うエレメント１８の先端を前記縮径されたエレメント１８の端部に嵌め込むなど、従来公知の種々の手段により行われる。
このようにエレメント集合体１４Ａが形成されると、円筒部１８０２と係合凹部１８０４もほぼ直線状に延在することになる。
次に、このエレメント集合体１４Ａに隣接してエレメント集合体１４Ｂを形成する。
この場合、最初のエレメント集合体１４Ａの係合凹部１８０４に、今回のエレメント集合体１４Ｂの円筒部１８０２の一部が収容されるように、前記と同様に複数または多数のエレメント１８がほぼ直線状に並べられて連結され、エレメント集合体１４Ｂが形成される。
【００１５】
次に、隣り合うエレメント集合体１４Ａ、１４Ｂ間にわたりエレメント連結用棒状部材１６を配設し、仮止めする。
すなわち、エレメント集合体１４Ａの各エレメント１８の仕切り板１８１０の棒材挿通孔２０と、エレメント集合体１４Ｂの各エレメント１８の円筒部１８０２の棒材挿通孔２０とにわたってエレメント連結用棒状部材１６を挿通する。
前記エレメント連結用棒状部材１６としては、例えば、ねじふし鉄筋やねじふし鋼棒などの鋼材や、カーボンファイバー、ケプラーなどからなる繊維補強材料を用いることができ、エレメント連結用棒状部材１６は、隣り合うエレメント集合体１４Ａ、１４Ｂの内部に収まる長さで形成しておく。すなわち、エレメント１８の内部から仕切り板１８１０や円筒部１８０２の棒材挿通孔２０に対して直交する方向から挿通でき、さらに、その両端が各エレメント１８の内部の中間部に位置する長さで形成しておく。
【００１６】
なお、エレメント連結用棒状部材１６の仮止めは、例えば、図１（Ａ）に示すように、小径部と大径部からなりそれらの中心に孔が貫設された弾性材製のブッシュ２６を多数用意し、エレメント集合体１４Ｂにおいて、小径部を円筒部１８０２の棒材挿通孔２０に挿通し、大径部を円筒部１８０２の内面に当て付け、このブッシュ２６にエレメント集合体１４Ｂからエレメント集合体１４Ａへとエレメント連結用棒状部材１６を挿通することで小径部の外周面を棒材挿通孔２０に圧接させ、同時に小径部の内周面をエレメント連結用棒状部材１６に圧接させ、これによりエレメント連結用棒状部材１６を保持することでなされる。
あるいは、エレメント連結用棒状部材１６が鋼材製の場合には、図１（Ｂ）に示すように、円筒部１８０２の内面に合致する形状の円筒面状の端面を有するマグネットリング２８を設け、このマグネットリング２８の円筒面状の端面を円筒部１８０２の内面に合わせ、棒材挿通孔２０とマグネットリング２８にエレメント集合体１４Ｂからエレメント集合体１４Ａへとエレメント連結用棒状部材１６を挿通し、磁力によりマグネットリング２８を円筒部１８０２の内面に装着すると共にマグネットリング２８の中心孔でエレメント連結用棒状部材１６を保持することでなされる。
この他に、棒材挿通孔２０に接着剤を塗布しておき、この棒材挿通孔２０に挿通されるエレメント連結用棒状部材１６を接着剤で保持するなど、従来公知の様々な構成を採用でき、エレメント連結用棒状部材１６を仮止めする構造は図１（Ａ）、（Ｂ）に示す構成に限定されない。
【００１７】
次に、エレメント集合体１４Ａの内部およびエレメント集合体１４Ａ、１４Ｂの間に形成された閉塞空間１８５０にコンクリートＣを充填し、柱体１２を形成する。
次に、前記と同様に、隣り合うエレメント集合体１４Ｂ、１４Ｃ間にわたりエレメント連結用棒状部材１６を配設し、仮止めしたのち、エレメント集合体１４Ｂの内部および閉塞空間１８５０にコンクリートＣを充填し、柱体１２を形成する。
なお、円筒部１８０２の棒材挿通孔２０と仕切り板１８１０の棒材挿通孔２０とを同軸上に設けずに、エレメント１８の長手方向や上下方向にずらしておくと、エレメント連結用棒状部材１６のエレメント集合体１４Ｂ、１４Ｃ間への挿通が、エレメント集合体１４Ａ、１４Ｂ間に挿通されたエレメント連結用棒状部材１６に干渉することなくより円滑になされ、棒材挿通孔２０をより小径化する上で有利となる。
このようにして、隣り合うエレメント集合体１４、１４間にわたりエレメント連結用棒状部材１６を配設し、仮止めしたのち、エレメント集合体１４の内部および閉塞空間１８５０にコンクリートＣを充填し、順次柱体１２を形成していくことで構造体１０が構築される。
なお、エレメント集合体１４の構築を円筒部１８０２に係合凹部１８０４を係合させつつ１４Ｃ、１４Ｂ、１４Ａの順に行なってもよい。
また、ブッシュ２６やマグネットリング２８などを用いたエレメント連結用棒状部材１６の仮止めは、仕切り壁１８１０側で行なってもよい。
さらに、全ての隣り合うエレメント集合体１４、１４毎にエレメント連結用棒状部材１６を配設し、仮止めしたのち、全てのエレメント集合体１４の内部および閉塞空間１８５０にコンクリートＣを充填することも可能である。
【００１８】
本実施の形態によれば、エレメント連結用棒状部材１６を隣り合うエレメント集合体１４、１４毎に挿通するようにしたので、エレメント連結用棒状部材１６の長さを短縮でき、これによりエレメント連結用棒状部材１６の配設を簡単に行なうことが可能となる。
特に、エレメント連結用棒状部材１６が、一つのエレメント１８に対して長手方向に間隔をおいた例えば、３箇所、４箇所あるいは５箇所などの複数箇所に配設され、さらに、エレメント１８自体が多数設けられることでエレメント集合体１４が構成され、かつ、このエレメント集合体１４が１０、２０、３０と複数並べられるような場合、その配設箇所も多数となるため、本発明のような短縮されたエレメント連結用棒状部材１６を用いて隣り合うエレメント集合体１４、１４毎に挿通することで、工期の大幅な短縮化が図れ、コストダウンを図る上で極めて有利となる。
また、エレメント連結用棒状部材１６が短いため棒材挿通孔２０を小径化してもその挿通が簡単に行なえ、したがって、棒材挿通孔２０を小径化でき、エレメント１８の強度ひいてはエレメント集合体１４、構造体１２の強度を確保する上でも有利となる。
【００１９】
図２は本発明の第２の実施の形態に係る構造体の断面正面図を示す。
なお、この図２以降の各図において、本発明の主要部が明確に示されるように、仮止め構造は省略してある。
第２の実施の形態に係る構造体１０では、隣り合うエレメント集合体１４、１４間にわたりエレメント連結用棒状部材１６を配設し、仮止めしたのち、エレメント集合体１４の内部および閉塞空間１８５０にコンクリートＣを充填する前に、各エレメント連結用棒状部材１６の両端に定着用のナット部材３０を螺合している。
前記ナット部材３０は、エレメント連結用棒状部材１６よりも大きな断面を有し、本実施の形態では、ナット部材３０の端部に、エレメント連結用棒状部材１６よりも一層大きな外径の鍔部３０Ａが形成されている。
このような第２の実施の形態によれば、コンクリートＣに対してナット部材３０がエレメント連結用棒状部材１６のアンカとして機能し、これによりエレメント連結用棒状部材１６にかかる力をエレメント１８（鋼管）にも分担でき、柱体１２相互の連結がより強固になされ、強固な構造体１０を得る上でより有利となる。
【００２０】
図３は本発明の第３の実施の形態に係る構造体の断面正面図を示す。
第３の実施の形態に係る構造体１０では、隣り合うエレメント集合体１４Ａ、１４Ｂ間にわたりエレメント連結用棒状部材１６を配設し、仮止めしたのち、エレメント集合体１４Ａの内部および閉塞空間１８５０にコンクリートＣを充填し硬化させたのち、コンクリートＣに埋設されたエレメント連結用棒状部材１６部分にプレストレスを付与するようにしたものである。
すなわち、エレメント連結用棒状部材１６にナット３２を螺合し、このナット３２をエレメント集合体１４Ｂの内部において円筒部１８０２の壁面に、円筒面を有するワッシャ３１を介して当接しておく。そして、エレメント集合体１４Ａの内部にコンクリートＣを充填し硬化させたのち、エレメント集合体１４Ｂの内部においてナット３２を回転することで、コンクリートＣに埋設されたエレメント連結用棒状部材１６部分にプレストレスを付与している。
したがって、第３の実施の形態では、プレストレスを付与したのち、隣のエレメント集合体１４へと順次コンクリートＣを充填していき、柱体１２を順次形成することになる。なお、コンクリートＣの充填をエレメント集合体１４Ｂ、１４Ａへと行なう場合には、ナット３２を仕切り壁１８１０に当接すればよく、この場合にはワッシャ３１を省略できる。
このような第３の実施の形態によれば、プレストレスを付与することでＰＰＣ（ｐａｒｔｉａｌｌｙ　ｐｒｅ−ｓｕｔｒｅｓｓ）構造とし、鋼管接合部のひび割れ幅を抑制する上で有利となる。
【００２１】
図４は本発明の第４の実施の形態に係る構造体の断面正面図を示す。
第４の実施の形態は、図２に示す第２の実施の形態と、図３に示す第３の実施の形態との双方を加えたものであり、定着用のナット部材３０とプレストレス付与用のナット３２との双方を用いたものである。
すなわち、隣り合うエレメント集合体１４Ａ、１４Ｂ間にわたりエレメント連結用棒状部材１６を配設し、仮止めする。
次に、エレメント集合体１４Ａの内部においてエレメント連結用棒状部材１６の端部に定着用のナット部材３０を螺合する。また、エレメント集合体１４Ｂの内部においてエレメント連結用棒状部材１６にナット３２を螺合し、端部に定着用のナット部材３０を螺合する。
次に、エレメント集合体１４Ａの内部にコンクリートＣを充填し硬化させたのち、エレメント集合体１４Ｂの内部においてナット３２を回転することで、コンクリートＣに埋設されたエレメント連結用棒状部材１６部分にプレストレスを付与する。
このような第４の実施の形態によれば、コンクリートＣに対してナット部材３０がエレメント連結用棒状部材１６のアンカとして機能し、また、ナット３０によりプレストレスを付与できることから、エレメント連結用棒状部材１６にかかる力をエレメント１８（鋼管）に分担させることができ、また、鋼管接合部のひび割れ幅を抑制する上でも有利となり、強固な構造体１０を得る上でより有利となる。
【００２２】
図５は本発明の第５の実施の形態に係る構造体の断面正面図を示す。
第５の実施の形態は、第３の実施の形態のプレストレス付与用のナット３２を用いると共に、エレメント連結用棒状部材１６の一端に第２の実施の形態の定着用のナット部材３０を用い、エレメント連結用棒状部材１６の他端に定着用のＬ字型屈曲部３４を設けたものである。
このような第５の実施の形態によっても、コンクリートＣに対してＬ字型屈曲部３４がエレメント連結用棒状部材１６のアンカとして機能するので、第４の実施の形態と同様な作用、効果が発揮される。
【００２３】
図６（Ａ）乃至（Ｄ）は本発明の第６の実施の形態の説明図を示す。
第６の実施の形態では、前記第１乃至第５の各実施の形態において、エレメント連結用棒状部材１６を配設するに際して補強部材４０を用いたものである。
前記補強部材４０は、例えば、図６（Ｃ）、（Ｄ）に示すように、エレメント連結用棒状部材１６が挿通できる断面が円形または矩形の筒状に形成されている。
前記補強部材４０は、例えば、鋼材や合成樹脂を用いて強度と剛性を有するように形成されている。
前記補強部材４０は、図６（Ａ）、（Ｂ）に示すように、前記係合凹部１８０４と円筒部１８０２とが係合した箇所を貫通する長さで形成され、すなわち、エレメント集合体１４Ａの各エレメント１４の仕切り板１８１０の棒材挿通孔２０と、エレメント集合体１４Ｂの各エレメント１４の円筒部１８０２の棒材挿通孔２０とを通る長さで形成されている。なお、補強部材４０を用いる実施の形態では、棒材挿通孔２０は補強部材４０（あるいは補強部材４０およびエレメント連結用棒状部材１６）が挿通される大きさで形成されている。
そして、補強部材４０は、これら仕切り板１８１０の棒材挿通孔２０と円筒部１８０２の棒材挿通孔２０とに挿通された状態で配設され、エレメント連結用棒状部材１６がこの補強部材４０を挿通して配設されている。
【００２４】
第６の実施の形態において構造体１０を構築する際には、隣り合うエレメント集合体１４Ａ、１４Ｂ間にわたり補強部材４０を配設し、仮止めし、また、この補強部材４０に挿通させてエレメント連結用棒状部材１６を隣り合うエレメント集合体１４Ａ、１４Ｂ間にわたり配設し、仮止めする。
補強部材４０の仮止めは、例えば、図６（Ａ）に示すように、リング状の止め金具４２を用いてもよく、あるいは、図６（Ｂ）に示すように、補強部材４０を棒材挿通孔２０に嵌合し固定するようにしてもよく、あるいは、補強部材４０が鋼材製の場合にはマグネットリングを用いてもよく、あるいは、接着剤を用いるなど従来公知の様々な部材、手段が適用可能である。
また、補強部材４０に対するエレメント連結用棒状部材１６の仮止めは、前記実施の形態と同様に、例えば、弾性材製のブッシュ２６（小径部を補強部材４０に挿通して使用）、あるいはマグネットリング２８、あるいは接着剤、あるいはナット３２などを用いて行われる。
【００２５】
この第６の実施の形態によれば、前記各第１乃至第５の実施の形態による効果に加え、隣り合うエレメント集合体１４の円筒部１８０２と係合凹部１８０４とが係合する箇所を補強部材４０により集中的に補強でき、すなわち、補強部材４０により鋼管接合部を集中的に補強でき、構造体１０の耐荷性能を効果的に向上させる上で有利となる。
【００２６】
図７（Ａ）乃至（Ｅ）は前記補強部材４０の変形例を示す。
第６の実施の形態では、補強部材４０の内径をエレメント連結用棒状部材１６が摺動できる程度の小さい寸法で形成しておき、エレメント連結用棒状部材１６を補強部材４０に単に挿通させることで配設してもよく、あるいは、補強部材４０の内径をエレメント連結用棒状部材１６の外径よりも大きな寸法で形成しておき、エレメント集合体１４へのコンクリートの充填時に、補強部材４０の内周面とエレメント連結用棒状部材１６の外周面との隙間にコンクリートを充填し、補強部材４０とエレメント連結用棒状部材１６とを一体化するようにしてもよい。また、図７（Ａ）に示すように、補強部材４０の内径をエレメント連結用棒状部材１６の外径よりも大きな寸法で形成しておき、補強部材４０として、外周面に多数の孔４００２が貫通形成された筒状部材を用いると、エレメント集合体１４へのコンクリートの充填時に、補強部材４０の内周面とエレメント連結用棒状部材１６の外周面との隙間に孔４００２からコンクリートが充填され、補強部材４０とエレメント連結用棒状部材１６とを一体化する上で有利となる。
さらに、図７（Ｂ）に示すように、補強部材４０として、外周面の全長にわたってリブ４００４が形成された筒状部材や、図７（Ｃ）に示すように、外周面の長手方向の両端のみにリブ４００４が形成された筒状部材を用いると、補強部材４０とエレメント連結用棒状部材１６とコンクリートＣを一体化する上で有利となる。
また、同様に、図７（Ｄ）に示すように、補強部材４０として、断面がＶ字状の鋼材や、図７（Ｅ）に示すように、断面が溝型の鋼材を使用しても、補強部材４０とエレメント連結用棒状部材１６とコンクリートＣを一体化する上で有利となる。なお、補強部材４０上に位置するエレメント連結用棒状部材１６の周囲にコンクリートＣを充填すると、エレメント連結用棒状部材１６の防錆上有利となる。
【００２７】
図８（Ａ）、（Ｂ）は本発明の第７の実施の形態の説明図を示す。
第７の実施の形態では、エレメント連結用棒状部材１６を配設するに際して連結部材４４を用いる点、ならびに、隣り合うエレメント集合体１４の間を連結するエレメント連結用棒状部材１６を同一直線状にまたは同一曲線状になるように連続させあたかも一本の長い棒状鋼材を用いた場合と同様な構成とした点が、前記第１乃至第５の実施の形態と異なっている。
第７の実施の形態では、各エレメント１８の複数箇所においてエレメント連結用棒状部材１６が、前記柱体１２の延在方向とほぼ直交する方向で円筒部１８０２と係合凹部１８０４とに貫通して配設されている。
より詳細には、隣り合うエレメント集合体１４の係合箇所において、前記円筒部１８０２の部分と仕切り板１８１０の部分に挿通孔４６が貫通形成され、前記連結部材４４は、これら隣り合うエレメント集合体１４の両側において円筒部１８０２の挿通孔４６と仕切り板１８１０の挿通孔４６にわたって延在するように配設されている。
そして、エレメント連結用棒状部材１６はその長手方向の大半の部分をエレメント１８の内部に位置させ、長手方向の両端を連結部材４４に連結させて配設されている。したがって、エレメント連結用棒状部材１６は、エレメント１８の内部においてその長手方向の両端が前記連結部材４４に連結されるに足る短い長さで形成されている。
【００２８】
本実施の形態では、エレメント連結用棒状部材１６としてねじふし鋼棒が用いられ、連結部材４４として、前記ねじふし鋼棒が螺合される雌ねじが形成された筒状のカップラーが用いられ、エレメント連結用棒状部材１６と連結部材４４とは共に市販品が用いられている。なお、連結部材４４は強度と剛性を有するように構成されていればよく、連結部材４４として鋼材製のものや合成樹脂製のものを用いることができる。なお、エレメント連結用棒状部材１６と連結部材４４との結合構造は、上記のようなねじ結合に限定されず、従来の公知の様々な構造が適用可能であるが、上記のようなねじ結合を用いるとコストダウンを図る上で有利となる。
第７の実施の形態において構造体１０を構築する際には、隣り合うエレメント集合体１４Ａ、１４Ｂの係合箇所に連結部材４４を配設し、仮止めし、また、この連結部材４４にその両端を連結させてエレメント連結用棒状部材１６を配設する。
連結部材４４の仮止めは、第６の実施の形態と同様で、例えば、リング状の止め金具４２を用いてもよく、あるいは、連結部材４４を挿通孔４６に嵌合し固定するようにしてもよく、あるいは、連結部材４４が鋼材製の場合にはマグネットリングを用いてもよく、あるいは、接着剤を用いるなど従来公知の様々な部材、手段が適用可能である。
【００２９】
そして、図８（Ａ）に示すように、隣り合う全てのエレメント集合体１４において各エレメント集合体１４内部のエレメント連結用棒状部材１６を、連結部材４４を介して同一直線状に連結させ、あるいは、同一曲線状に連結させる。
なお、エレメント集合体１４の内部および閉塞空間１８５０へのコンクリートＣの充填は、エレメント連結用棒状部材１６を配設したエレメント集合体１４毎に順次コンクリートＣを充填してもよく、あるいは、全てのエレメント集合体１４にエレメント連結用棒状部材１６を配設したのち、全てのエレメント集合体１４の内部および閉塞空間１８５０にコンクリートＣを充填するようにしてもよい。
【００３０】
この第７の実施の形態によれば、第６の実施の形態と同様に、前記各第１乃至第５の実施の形態による効果に加え、隣り合うエレメント集合体１４の円筒部１８０２と係合凹部１８０４とが係合する箇所を連結部材４４により集中的に補強でき、すなわち、連結部材４４により鋼管接合部を集中的に補強でき、構造体１０の耐荷性能を効果的に向上させる上で有利となる。
また、エレメント集合体１４に配設される全てのエレメント連結用棒状部材１６が連結部材４４を介して連結され、同一直線状に、あるいは同一曲線状に連続して延在するので、あたかも一本の長い棒状鋼材を用いた場合と同様な構成となり、構造体１０の耐荷性能をより一層向上させる上で有利となる。
【００３１】
図９は本発明の第８の実施の形態の説明図を示す。
第７の実施の形態では、エレメント集合体１４相互を強固に連結するに際してエレメント連結用棒状部材１６に代えてワイヤ５０を用いる点、および、円筒部１８０２と係合凹部１８０４との係合箇所にワイヤ５０を配設するためのワイヤ挿通部材５２を用いる点が、前記第１乃至第５の実施の形態と異なっている。
第８の実施の形態では、各エレメント１８の複数箇所においてワイヤ５０が、前記柱体１２の延在方向とほぼ直交する方向で円筒部１８０２と係合凹部１８０４とに貫通して配設されている。
より詳細には、隣り合うエレメント集合体１４の係合箇所において、前記円筒部１８０２の部分と仕切り板１８１０の部分に挿通孔５４が貫通形成され、ワイヤ挿通部材５２は、これら隣り合うエレメント集合体１４の両側において円筒部１８０２の挿通孔５４と仕切り板１８１０の挿通孔５４にわたって延在するように配設されている。
そして、ワイヤ５０は隣り合うエレメン１８を全て貫通し、同一直線状に延在するように、あるいは、同一曲線状に延在するように配設されている。
【００３２】
前記ワイヤ５０は可撓可能な鋼材製である。
前記ワイヤ挿通部材５２は、ワイヤ５０を挿通できる内径で筒状に形成されており、強度と剛性を有するように鋼材製または合成樹脂製である。
第８の実施の形態において構造体１０を構築する際には、隣り合うエレメント集合体１４Ａ、１４Ｂの係合箇所にワイヤ挿通部材５２を配設し、また、このワイヤ挿通部材５２に挿通させてワイヤ５０を配設する。
前記ワイヤ挿通部材５２の仮止めは、第６の実施の形態と同様で、例えば、リング状の止め金具４２を用いてもよく、あるいは、ワイヤ挿通部材５２を挿通孔５４に嵌合し固定するようにしてもよく、あるいは、ワイヤ挿通部材５２が鋼材製の場合にはマグネットリングを用いてもよく、あるいは、接着剤を用いるなど従来公知の様々な部材、手段が適用可能である。
【００３３】
そして、各エレメント毎にワイヤ５０を挿通していくことで隣り合う全てのエレメントにおいてワイヤ５０を挿通させ、ワイヤ挿通部材５２を介してワイヤ５０を同一直線状に配設し、あるいは、同一曲線状に配設する。
なお、エレメント集合体１４の内部および閉塞空間１８５０へのコンクリートＣの充填は、ワイヤ５０を配設したエレメント集合体１４毎に順次コンクリートＣを充填してもよく、あるいは、全てのエレメント集合体１４にワイヤ５０を配設したのち、全てのエレメント集合体１４の内部および閉塞空間１８５０にコンクリートＣを充填するようにしてもよい。
【００３４】
この第８の実施の形態によれば、第６、第７の実施の形態と同様に、前記各第１乃至第５の実施の形態による効果に加え、隣り合うエレメント集合体１４の円筒部１８０２と係合凹部１８０４とが係合する箇所をワイヤ挿通部材５２により集中的に補強でき、すなわち、ワイヤ挿通部材５２により鋼管接合部を集中的に補強でき、構造体１０の耐荷性能を効果的に向上させる上で有利となる。
また、隣り合う全てのエレメント集合体１４の各エレメント１８にそれぞれワイヤ５０を挿通させ、このワイヤ５０を同一直線状に、あるいは同一曲線状に連続して延在させると、ワイヤ５０は充填されたコンクリートＣによりその動きが拘束されることから、あたかも一本の長いエレメント連結用棒状部材１８を用いた場合と同様な構成となり、構造体１０の耐荷性能をより一層向上させる上で有利となる。
また、ワイヤ５０は可撓可能であることから、隣り合うエレメント１８への挿通、配設も簡単になされ、工期を大幅に短縮する上でも極めて有利となる。
【００３５】
なお、ワイヤ挿通部材５２は、その内径をワイヤ５０が摺動しつつ挿通できる程度の小さい寸法で形成しておき、ワイヤ５０をワイヤ挿通部材５２に単に挿通させることで配設してもよく、あるいは、ワイヤ挿通部材５２の内径をワイアｙ５０の外径よりも大きな寸法で形成しておき、エレメント集合体１４へのコンクリートの充填時に、ワイヤ挿通部材５２の内周面とワイヤ５０の外周面との隙間にコンクリートを充填し、ワイヤ挿通部材５２とワイヤ５０とを一体化するようにしてもよい。
また、図７（Ａ）に示すように、ワイヤ挿通部材５２の内径をワイヤ５０の外径よりも大きな寸法で形成しておき、ワイヤ挿通部材５２として、外周面に多数の孔４００２が貫通形成された筒状部材を用いると、エレメント集合体１４へのコンクリートの充填時に、ワイヤ挿通部材５２の内周面とワイヤ５０の外周面との隙間に孔４００２からコンクリートが充填され、ワイヤ挿通部材５２とワイヤ５０とを一体化する上で有利となる。
さらに、図７（Ｂ）に示すように、ワイヤ挿通部材５２として、外周面の全長にわたってリブ４００４が形成された筒状部材や、図７（Ｃ）に示すように、外周面の長手方向の両端のみにリブ４００４が形成された筒状部材を用いると、ワイヤ挿通部材５２とワイヤ５０とコンクリートＣとを一体化する上で有利となる。
また、同様に、図７（Ｄ）に示すように、ワイヤ挿通部材５２として、断面がＶ字状の鋼材や、図７（Ｅ）に示すように、断面が溝型の鋼材を使用しても、ワイヤ挿通部材５２とワイヤ５０とコンクリートＣとを一体化する上で有利となる。なお、ワイヤ挿通部材５２上に位置するワイヤ５０の周囲にコンクリートＣを充填すると、ワイヤ５０の防錆上有利となる。
【００３６】
また、上記の実施の形態では、隣り合う全てのエレメント集合体１４において、ワイヤ５０を同一直線状に、あるいは同一曲線状に連続して延在させるようにしたが、各エレメント１８の内部においてワイヤ５０を弛ませるようにしてよく、ワイヤ５０を弛ませるようにしてもワイヤ５０とワイヤ挿通部材５２によりエレメント集合体１４の連結強度を高めることができる。また、ワイヤ５０を同一直線状に、あるいは同一曲線状に連続して延在させると共に、ワイヤ５０に張力を付与した状態でコンクリートＣを充填させれば、あるいは、コンクリートＣを充填してコンクリートＣの硬化後にワイヤ５０に張力を付与すれば、ワイヤ５０が引張材としても機能することになり、構造体１０の曲げ耐力を向上する上で有利となる。
【００３７】
なお、本実施の形態では、構造体１０が地上に設けられた場合について説明したが、構造体１０は地中に設けられる構造物、例えば土圧壁などにも無論適用される。
また、実施の形態では、柱体１２が平面状に並べられた場合について説明したが、四角枠状や環状に並べられるなど、構造体１０は実施の形態の形状に限定されない。
【００３８】
【発明の効果】
以上の説明で明らかなように本発明の構造体および構造体の構築工法によれば、エレメントの内部から簡単な作業によりエレメント集合体相互を強固に連結でき、工期の短縮化を図る上で、また、コストダウンを図る上で有利となり、さらに、エレメントの強度ひいてはエレメント集合体、構造体の強度を確保する上で有利となる。
【図面の簡単な説明】
【図１】（Ａ）、（Ｂ）は本発明の第１の実施の形態に係る構造体の断面正面図である。
【図２】本発明の第２の実施の形態に係る構造体の断面正面図である。
【図３】本発明の第３の実施の形態に係る構造体の断面正面図である。
【図４】本発明の第４の実施の形態に係る構造体の断面正面図である。
【図５】本発明の第５の実施の形態に係る構造体の断面正面図である。
【図６】（Ａ）乃至（Ｄ）は本発明の第６の実施の形態の説明図である。
【図７】（Ａ）乃至（Ｅ）は補強部材の変形例を示す図である。
【図８】（Ａ）、（Ｂ）は本発明の第７の実施の形態の説明図である。
【図９】本発明の第８の実施の形態の説明図である。
【図１０】土圧壁の断面正面図である。
【符号の説明】
１０　構造体
１２　柱体
１４　エレメント集合体
１６　エレメント連結用棒状部材
１８　エレメント
４０　補強部材
４４　連結部材
５０　ワイヤ
５２　ワイヤ挿通部材[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structure and a construction method for the structure.
[0002]
[Prior art]
Considering the case where the structure constructed by the elements is earth pressure walls provided in the ground, for example, when attempting to construct a medium-distance tunnel with a large cross section, a conventional cylindrical element with a square cross section The URT construction method using is used.
However, this URT method is excavated by an auger placed at the front end of the element, and a circular hole is excavated. Therefore, the four corners of the element are forced against the ground part where the hole is not excavated. The maximum length is around 100m.
[0003]
[Problems to be solved by the invention]
Therefore, as shown in FIG. 10, the element 112 includes a cylindrical portion 112A having a cylindrical cross section, and an engagement recess 112B in which one side of the cylindrical portion 112A is recessed inside the cylindrical portion 112A over its entire length. It is possible to use it.
That is, a plurality of hollow elements 12 composed of the cylindrical portion 112A and the engaging recess 112B are embedded in the ground along the outer shell of the tunnel to be constructed while the cylindrical portion 112A is engaged with the engaging recess 112B. It can be considered that the element assembly 120 is made to extend in the extending direction of the tunnel.
[0004]
Specifically, a circular hole is excavated from the starting shaft to the reaching shaft using a circular excavator or the like, and the element 112 is sequentially added behind the hole to be arranged in the excavated hole to form an element assembly 120A. In excavation, a circular hole is excavated so as to pass through the engagement recess 112B of the element 112, and the element 112A is engaged with the engagement recess 112B of the element 112 arranged behind the element 112A. It is conceivable that the element assembly 120 </ b> B is formed by sequentially adding 112 and arranging them in the excavated holes.
According to such a construction method, the element 112 can be smoothly inserted into the excavated circular hole, and a large effective girder can be secured.
However, since the cylinders 112A and the engagement recesses 112B are merely engaged with each other in the columnar bodies configured by filling the concrete inside the element assemblies 120, the earth pressure constructed The wall may be inferior in strength.
[0005]
Therefore, the element extends over the interior of the adjacent element assembly 120 so as to pass through the portion where the cylindrical portion 112A and the engaging portion 112B are engaged in a direction substantially orthogonal to the extending direction of the element assembly 120 embedded in the ground. It is conceivable to insert the connecting rod-like member 114 and firmly connect the element assemblies 120 to each other.
However, if the element connecting rod member 114 is inserted from the inside of the element assembly 120, the length of the element connecting rod member 114 is limited by the inner diameter of the element 112, and the element assembly When trying to go from the outside of the body 120, a problem arises that a large space is required on the side of the structure to be constructed.
[0006]
Further, when the element connecting rod-like member 114 is inserted from the inside of the element assembly 120 over the inside of the plurality of three or four or more element assemblies 120, the direction substantially orthogonal to the extending direction of the element assembly 120 Since it is necessary to insert the element connecting rod-shaped member 114 from an oblique direction rather than from the insertion hole, the insertion hole for inserting the element connecting rod-shaped member 114 becomes a long hole, the strength of the element 112 is reduced, and the processing cost is reduced. The trouble which becomes bulky arises.
This problem occurs not only in the case of the earth pressure wall described above, but also in the case of constructing a structure on the ground with a plurality of hollow elements composed of a cylindrical portion and an engaging recess.
The present invention has been devised in view of the above circumstances, and the object of the present invention is to reduce the elements adjacent to each other from the inside of the element without reducing the strength of the element and without increasing the processing cost. An object of the present invention is to provide a structure that can be easily connected and a construction method thereof.
[0007]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention provides a plurality of pillars composed of an element assembly extending substantially linearly and concrete filled in the element assembly, the length directions of which are parallel to each other. The element assembly is composed of a cylindrical portion and an engagement concave portion in which at least one side of the cylindrical portion is recessed inside the cylindrical portion over the entire length of the cylindrical portion. A plurality of hollow elements are connected so as to extend substantially linearly on the same axis, and the adjacent column bodies have an engagement concave portion and a cylindrical portion of each element of the adjacent element assembly. There are provided a plurality of element connecting rod-like members that are arranged in an engaged state and have a length that can be accommodated in two adjacent element assemblies that penetrate the portion where the engaging recess and the cylindrical portion are engaged. The plurality of portions in the extending direction of each element of the element assembly constituting the column pass through the portion where the engaging recess and the cylindrical portion are engaged in a direction substantially orthogonal to the extending direction of the column. The element connecting rod-shaped member is disposed over the interior of adjacent elements.
In the present invention, a plurality of columnar bodies each composed of an element assembly extending substantially linearly and concrete filled in the element assembly are arranged with their length directions parallel to each other. The element assembly includes a plurality of hollow elements each including a cylindrical portion and an engaging concave portion in which at least one side of the cylindrical portion is recessed inside the cylindrical portion over the entire length of the cylindrical portion. Are connected so as to extend substantially linearly on the same axis, and the adjacent column bodies are engaged with the engagement recesses and the cylindrical portions of the elements of the adjacent element assemblies. A plurality of connecting members having strength and rigidity of a length penetrating through the portion where the engaging recess and the cylindrical portion are engaged, and the plurality of connecting members are respectively engaged engaging recesses. And cylindrical part The elements are connected to each other at both ends in the longitudinal direction of the adjacent elements and are connected to the connecting members, and element connecting rod members are provided. The bar-shaped member for use is arranged so as to extend in the same straight line or the same curved line in a direction substantially orthogonal to the extending direction of the columnar body, and the element connecting bar-shaped member arranged in this way is the columnar body. It is provided so that it may pass through several places of the extension direction of each element of the element assembly which comprises.
In the present invention, a plurality of hollow elements each having a cylindrical portion and an engaging concave portion in which at least one side of the cylindrical portion is recessed inside the cylindrical portion over the entire length of the cylindrical portion are coaxially connected to each other. Forming a plurality of element assemblies extending in a straight line, arranging the plurality of element assemblies by engaging engagement concave portions and cylindrical portions of the element assemblies, and substantially extending direction of the element assemblies A step of disposing an element connecting rod-like member over the interior of adjacent element assemblies so as to pass through the portion where the engaging recess and the cylindrical portion are engaged in a direction orthogonal to each other; and concrete inside the element assembly A method of constructing a structure having a step of filling and forming an element assembly and a column made of concrete, wherein the element connecting rod-shaped member and the engaging recess Formed with a length that can be accommodated inside two adjacent element assemblies penetrating the portion engaged with the cylindrical portion, and the engaging recess and the cylindrical portion were engaged before filling with the concrete The element connecting rod-like member is inserted and temporarily fixed at a plurality of locations in the extending direction of each element of the two element assemblies adjacent to each other so as to pass through the location, and thus the two elements adjacent to each other The element connecting rod-like member is inserted and temporarily fixed for each aggregate, and then the interior of the element aggregate is filled with concrete to form a column.
In the present invention, a plurality of hollow elements each having a cylindrical portion and an engaging concave portion in which at least one side of the cylindrical portion is recessed inside the cylindrical portion over the entire length of the cylindrical portion are coaxially connected to each other. Forming a plurality of element assemblies extending in a straight line, arranging the plurality of element assemblies by engaging engagement concave portions and cylindrical portions of the element assemblies, and substantially extending direction of the element assemblies A step of disposing an element connecting rod-like member over the interior of adjacent element assemblies so as to pass through the portion where the engaging recess and the cylindrical portion are engaged in a direction orthogonal to each other; and concrete inside the element assembly A method of constructing a structure having a step of filling and forming an element assembly and a column made of concrete, wherein the element connecting rod-shaped member and the engaging recess Formed with a length that can be accommodated inside two adjacent element assemblies penetrating the portion engaged with the cylindrical portion, and the engaging recess and the cylindrical portion were engaged before filling with the concrete The element connecting rod-like member is inserted and temporarily fixed at a plurality of locations in the extending direction of each element of the two element assemblies adjacent to each other so as to pass through the location, and thus the two elements adjacent to each other After the element connecting rod-like member is inserted and temporarily fixed in the aggregate, concrete is filled in one of the two adjacent element aggregates, and the two of the adjacent two element aggregates are filled. The engaging recess and the cylindrical portion engage with each other over the other element assembly and the element assembly adjacent to the element assembly. After the element connecting rod member is inserted and temporarily fixed so as to pass through the place, the inside of the other element assembly is filled with concrete, and thus the steel material is inserted into every two adjacent element assemblies. After temporarily fixing, the element assembly is sequentially filled with concrete to form a column.
[0008]
In the present invention, the length of the element connecting rod-like member is shortened.
This makes it easy to dispose the element connecting rod-like member, which is advantageous for shortening the construction period and reducing costs.
In addition, the diameter of the insertion hole for inserting the element connecting rod-like member can be reduced, which is advantageous in securing the strength of the element and the strength of the element assembly and structure.
[0009]
In the present invention, a plurality of columnar bodies each composed of an element assembly extending substantially linearly and concrete filled in the element assembly are arranged with their length directions parallel to each other. The element assembly includes a plurality of hollow elements each including a cylindrical portion and an engaging concave portion in which at least one side of the cylindrical portion is recessed inside the cylindrical portion over the entire length of the cylindrical portion. Are connected so as to extend substantially linearly on the same axis, and the adjacent column bodies are engaged with the engagement recesses and the cylindrical portions of the elements of the adjacent element assemblies. A plurality of wire insertion members having strength and rigidity of a length penetrating through the portion where the engagement concave portion and the cylindrical portion are engaged, and the plurality of wire insertion members are respectively engaged with the engaged engagement. Together The flexible steel wire is disposed so as to penetrate through the portion and the cylindrical portion, and passes through the wire insertion member in the direction substantially perpendicular to the extending direction of the column body and over the inside of the plurality of elements. The inserted wire is provided so as to pass through a plurality of locations in the extending direction of each element of the element assembly constituting the column body.
According to such an invention, the element assemblies are firmly connected to each other by the wire and the wire insertion member, and since the wire is flexible, the wire can be easily arranged and the construction period can be shortened. In addition, it is advantageous for cost reduction.
In addition, the diameter of the insertion hole for inserting the wire insertion member can be reduced, which is advantageous in securing the strength of the element and the strength of the element assembly and structure.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1A and 1B are sectional front views of a structure according to a first embodiment of the present invention.
The structure 10 according to the embodiment is composed of a plurality of pillars 12 that extend in the horizontal direction in parallel with each other on the ground and are connected to each other.
Each column 12 is composed of an element assembly 14 and concrete C filled in the element assembly 14, and an element connecting rod member 16 is provided through each adjacent element assembly 14. ing.
Each element assembly 14 is configured by coaxially connecting a large number of elements 18. The element 18 includes a cylindrical portion 1802, and at least one side of the cylindrical portion 1802 is a cylindrical portion over the entire length of the cylindrical portion 1802. An engagement recess 1804 that is recessed inside 1802 is formed in a hollow shape.
[0011]
Adjacent element assemblies 14 are engaged with engaging recesses 1804 of the elements 18 constituting one element assembly 14 and a part of each cylindrical portion 1802 of the element 18 constituting the other element assembly 14 is engaged. Are arranged to be.
The element connecting rod-like member 16 passes through the engaging recesses 1804 of the element 18 at a plurality of positions spaced in the longitudinal direction of each element assembly 14 in a direction substantially perpendicular to the extending direction of the column 12. The element assemblies 14 are arranged so as to penetrate between the insides.
And the concrete C is filled in the inside of these element assemblies 14, and the some pillar body 12 connected mutually is formed.
[0012]
If it demonstrates in detail, the cylindrical part 1802 of the element 18 is comprised by notching one side of a steel pipe.
The engaging recess 1804 is a steel plate partition plate 1810 that is disposed inside the cylindrical portion 1802 and constitutes the bottom of the recess, a cylindrical portion 1802 portion that stands up from both sides of the partition plate 1810 and protrudes from the partition plate 1810. The side plate 1812 is made of a steel plate that is erected from both sides of the partition plate 1810 and connected to a cylindrical portion 1802 projecting from the partition plate 1810.
In a state where a part of the cylindrical portion 1802 of the adjacent element 18 is accommodated in the engaging concave portion 1804 having such a configuration, the edges of the cylindrical portion 1802 positioned at both ends of the cylindrical portion 1802 are adjacent to each other. A closed space 1850 that is closed is formed between the outside of the partition plate 1810 and the outside of the cylindrical portion 1802 of the element 18 that is arranged next to the cylindrical portion 1802 of the element 18 that is arranged. Yes.
[0013]
Bar material insertion holes 20 through which the element connecting rod-shaped member 16 is inserted are provided at intervals in the circumferential direction (vertical direction) at locations of the cylindrical portion 1802 facing the partition plate 1810. Corresponding to this, bar insertion holes 20 are also provided in the partition plate 1810 at intervals. Further, the bar insertion holes 20 provided in the cylindrical portion 1802 and the partition plate 1810 are provided in a plurality of locations spaced apart in the longitudinal direction in one element 18.
[0014]
Next, the construction procedure of the structure 10 will be described.
First, one element aggregate 14A is constructed by a plurality or a plurality of elements 18, and then an adjacent element aggregate 14B is constructed by using a plurality or a plurality of elements 18, and thus the adjacent element aggregate 14C. , ... will be built sequentially.
When constructing one element assembly 14A, first, the elements 18 are arranged substantially linearly (coaxially) in the horizontal direction so that the cylindrical portion 1802 and the engaging recess 1804 extend continuously. And being connected. In the present invention, “substantially linear” is a concept including not only a linear shape but also a curved shape having a large curvature radius. The elements 18 can be connected to each other by, for example, reducing the diameter of one end of the elements 18 in the longitudinal direction and fitting the ends of adjacent elements 18 into the ends of the elements 18 that have been reduced in diameter. It is performed by various means.
When the element assembly 14A is formed in this way, the cylindrical portion 1802 and the engagement recess 1804 also extend substantially linearly.
Next, an element assembly 14B is formed adjacent to the element assembly 14A.
In this case, a plurality or a large number of elements 18 are substantially linear in the same manner as described above so that a part of the cylindrical portion 1802 of the current element assembly 14B is accommodated in the engagement recess 1804 of the first element assembly 14A. Are arranged and connected to form an element assembly 14B.
[0015]
Next, the element connecting rod-like member 16 is disposed between the adjacent element assemblies 14A and 14B and temporarily fixed.
That is, the element connecting rod member 16 is inserted through the rod insertion hole 20 of the partition plate 1810 of each element 18 of the element assembly 14A and the rod insertion hole 20 of the cylindrical portion 1802 of each element 18 of the element assembly 14B. To do.
As the element connecting rod-shaped member 16, for example, a steel reinforcing member such as a threaded reinforcing bar or a screw-loaded steel rod, or a fiber reinforcing material made of carbon fiber, Kepler, or the like can be used. It is formed with a length that fits inside the matching element assemblies 14A and 14B. That is, it can be inserted from the inside of the element 18 from the direction orthogonal to the partition plate 1810 and the rod insertion hole 20 of the cylindrical portion 1802, and further, both ends thereof are formed at a length located in the intermediate portion inside each element 18. Keep it.
[0016]
For example, as shown in FIG. 1 (A), the element connection rod-like member 16 is temporarily fixed by using an elastic material bush 26 having a small-diameter portion and a large-diameter portion with a hole penetrating in the center thereof. A large number are prepared, and in the element assembly 14B, the small diameter portion is inserted into the rod material insertion hole 20 of the cylindrical portion 1802, and the large diameter portion is applied to the inner surface of the cylindrical portion 1802. By inserting the element connecting rod member 16 into the body 14A, the outer peripheral surface of the small diameter portion is pressed into the rod insertion hole 20, and at the same time, the inner peripheral surface of the small diameter portion is pressed into contact with the element connecting rod member 16, thereby This is done by holding the element connecting rod-like member 16.
Alternatively, when the element connecting rod-shaped member 16 is made of steel, as shown in FIG. 1 (B), a magnet ring 28 having a cylindrical end surface shaped to match the inner surface of the cylindrical portion 1802 is provided. The cylindrical ring-shaped end surface of the magnet ring 28 is aligned with the inner surface of the cylindrical portion 1802, and the element connecting rod-shaped member 16 is inserted from the element assembly 14B to the element assembly 14A through the rod insertion hole 20 and the magnet ring 28, Thus, the magnet ring 28 is attached to the inner surface of the cylindrical portion 1802 and the element connecting rod-like member 16 is held in the center hole of the magnet ring 28.
In addition to this, various conventionally known configurations such as applying an adhesive to the rod insertion hole 20 and holding the element connecting rod member 16 inserted into the rod insertion hole 20 with the adhesive are adopted. The structure for temporarily fixing the element connecting rod-like member 16 is not limited to the configuration shown in FIGS.
[0017]
Next, concrete C is filled into the closed space 1850 formed inside the element assembly 14 </ b> A and between the element assemblies 14 </ b> A and 14 </ b> B to form the column 12.
Next, in the same manner as described above, the element connecting rod member 16 is disposed between the adjacent element assemblies 14B and 14C, temporarily fixed, and then the inside of the element assembly 14B and the closed space 1850 are filled with concrete C. The column body 12 is formed.
If the rod insertion hole 20 of the cylindrical portion 1802 and the rod insertion hole 20 of the partition plate 1810 are not provided coaxially but are shifted in the longitudinal direction or the vertical direction of the element 18, the element connecting rod-shaped member 16. Is inserted smoothly between the element assemblies 14B and 14C without interfering with the element connecting rod member 16 inserted between the element assemblies 14A and 14B, and the diameter of the rod insertion hole 20 is further reduced. This is advantageous.
In this manner, the element connecting rod-like member 16 is disposed between the adjacent element assemblies 14 and 14 and temporarily fixed, and then the concrete C is filled into the inside of the element assembly 14 and the closed space 1850, and the columns are sequentially formed. The structure 10 is constructed by forming the body 12.
The element assembly 14 may be constructed in the order of 14C, 14B, and 14A while engaging the engaging recess 1804 with the cylindrical portion 1802.
Further, the temporary connection of the element connecting rod member 16 using the bush 26, the magnet ring 28, or the like may be performed on the partition wall 1810 side.
Furthermore, after arranging the element connecting rod-like members 16 for every adjacent element assemblies 14 and 14 and temporarily fixing them, the inside of all the element assemblies 14 and the closed space 1850 may be filled with concrete C. Is possible.
[0018]
According to the present embodiment, since the element connecting rod-like member 16 is inserted into each of the adjacent element assemblies 14 and 14, the length of the element connecting rod-like member 16 can be shortened, thereby The rod-shaped member 16 can be easily arranged.
In particular, the element connecting rod-like member 16 is disposed in a plurality of places such as three places, four places or five places spaced apart from each other in the longitudinal direction with respect to one element 18, and there are many elements 18 themselves. When the element assembly 14 is configured by being provided and a plurality of the element assemblies 14 are arranged as 10, 20, and 30, the number of arrangement portions becomes large, and thus the number of arrangements is shortened as in the present invention. By inserting the adjacent element assemblies 14 and 14 using the element connecting rod-like member 16, the construction period can be greatly shortened, which is extremely advantageous in reducing the cost.
Further, since the element connecting rod-shaped member 16 is short, the rod insertion hole 20 can be easily inserted even if the diameter of the rod insertion hole 20 is reduced. Therefore, the diameter of the rod insertion hole 20 can be reduced, and the strength of the element 18 and the element assembly 14, This is also advantageous in securing the strength of the structure 12.
[0019]
FIG. 2 is a sectional front view of a structure according to the second embodiment of the present invention.
In addition, in each figure after this FIG. 2, the temporary fix | stop structure is abbreviate | omitted so that the principal part of this invention may be shown clearly.
In the structure 10 according to the second embodiment, the element connecting rod-like member 16 is disposed between the adjacent element assemblies 14, 14, temporarily fixed, and then in the element assembly 14 and the closed space 1850. Before filling the concrete C, fixing nut members 30 are screwed to both ends of each element connecting rod-like member 16.
The nut member 30 has a larger cross section than the element connecting rod-shaped member 16, and in this embodiment, a flange portion 30 </ b> A having a larger outer diameter than the element connecting rod-shaped member 16 is provided at the end of the nut member 30. Is formed.
According to such a second embodiment, the nut member 30 functions as an anchor for the element connecting rod-shaped member 16 with respect to the concrete C, whereby the force applied to the element connecting rod-shaped member 16 is applied to the element 18 (steel pipe). ), The column bodies 12 are more strongly connected to each other, which is more advantageous in obtaining a strong structure 10.
[0020]
FIG. 3 shows a cross-sectional front view of a structure according to a third embodiment of the present invention.
In the structure 10 according to the third embodiment, the element connecting rod-like member 16 is disposed between the adjacent element assemblies 14A and 14B and temporarily fixed, and then the inside of the element assembly 14A and the closed space 1850 are provided. After the concrete C is filled and hardened, prestress is applied to the element connecting rod-like member 16 embedded in the concrete C.
That is, a nut 32 is screwed into the element connecting rod-shaped member 16, and this nut 32 is brought into contact with the wall surface of the cylindrical portion 1802 inside the element assembly 14B via a washer 31 having a cylindrical surface. Then, after filling the element assembly 14A with the concrete C and hardening it, the nut 32 is rotated inside the element assembly 14B, so that the element connecting rod member 16 embedded in the concrete C is prestressed. Is granted.
Therefore, in the third embodiment, after prestress is applied, the concrete elements C are sequentially filled into the adjacent element aggregates 14, and the column bodies 12 are sequentially formed. When filling the concrete aggregate C into the element assemblies 14B and 14A, the nut 32 may be brought into contact with the partition wall 1810. In this case, the washer 31 can be omitted.
According to such 3rd Embodiment, it is advantageous when it gives a PPC (partial pre-stress) structure by giving prestress, and suppresses the crack width of a steel pipe joined part.
[0021]
FIG. 4 shows a cross-sectional front view of a structure according to a fourth embodiment of the present invention.
In the fourth embodiment, both the second embodiment shown in FIG. 2 and the third embodiment shown in FIG. 3 are added, and the fixing nut member 30 and prestressing are added. Both of the nuts 32 for use are used.
That is, the element connecting rod-like member 16 is disposed between the adjacent element assemblies 14A and 14B and temporarily fixed.
Next, the fixing nut member 30 is screwed into the end portion of the element connecting rod member 16 inside the element assembly 14A. Further, inside the element assembly 14B, a nut 32 is screwed to the element connecting rod-like member 16, and a fixing nut member 30 is screwed to the end.
Next, after filling and hardening the concrete C inside the element assembly 14A, the nut 32 is rotated inside the element assembly 14B, so that the element connecting rod-like member 16 embedded in the concrete C is pre-treated. Add stress.
According to the fourth embodiment, since the nut member 30 functions as an anchor for the element connecting rod-like member 16 with respect to the concrete C, and the prestress can be applied by the nut 30, the element connecting rod-like shape The force applied to the member 16 can be shared by the element 18 (steel pipe), which is advantageous in suppressing the crack width of the steel pipe joint, and more advantageous in obtaining a strong structure 10.
[0022]
FIG. 5 shows a sectional front view of a structure according to the fifth embodiment of the present invention.
In the fifth embodiment, the prestressing nut 32 of the third embodiment is used, and the fixing nut member 30 of the second embodiment is used at one end of the element connecting rod-like member 16. A fixing L-shaped bent portion 34 is provided at the other end of the element connecting rod-like member 16.
Also according to the fifth embodiment, since the L-shaped bent portion 34 functions as an anchor for the element connecting rod-like member 16 with respect to the concrete C, the same operations and effects as in the fourth embodiment can be obtained. Demonstrated.
[0023]
FIGS. 6A to 6D are explanatory views of a sixth embodiment of the present invention.
In the sixth embodiment, in the first to fifth embodiments, the reinforcing member 40 is used when the element connecting rod-shaped member 16 is disposed.
For example, as shown in FIGS. 6C and 6D, the reinforcing member 40 is formed in a cylindrical shape having a circular or rectangular cross section through which the element connecting rod-like member 16 can be inserted.
The reinforcing member 40 is formed to have strength and rigidity using, for example, a steel material or a synthetic resin.
As shown in FIGS. 6 (A) and 6 (B), the reinforcing member 40 is formed to have a length penetrating through the portion where the engaging recess 1804 and the cylindrical portion 1802 are engaged, that is, the element assembly 14A. Each of the elements 14 is formed to have a length passing through the bar insertion hole 20 of the partition plate 1810 and the bar insertion hole 20 of the cylindrical portion 1802 of each element 14 of the element assembly 14B. In the embodiment using the reinforcing member 40, the bar insertion hole 20 is formed in such a size that the reinforcing member 40 (or the reinforcing member 40 and the element connecting rod-shaped member 16) is inserted.
The reinforcing member 40 is disposed in a state where the reinforcing member 40 is inserted into the bar insertion hole 20 of the partition plate 1810 and the bar inserting hole 20 of the cylindrical portion 1802. It is inserted and arranged.
[0024]
When constructing the structural body 10 in the sixth embodiment, the reinforcing member 40 is disposed between the adjacent element assemblies 14A and 14B, temporarily fixed, and inserted into the reinforcing member 40 to provide an element. The connecting rod-like member 16 is disposed between the adjacent element assemblies 14A and 14B and temporarily fixed.
For temporary fixing of the reinforcing member 40, for example, as shown in FIG. 6A, a ring-shaped stopper 42 may be used, or as shown in FIG. The insertion hole 20 may be fitted and fixed, or when the reinforcing member 40 is made of steel, a magnet ring may be used, or various conventionally known members and means such as an adhesive may be used. Is applicable.
In addition, the temporary connection of the element connecting rod member 16 to the reinforcing member 40 is performed by, for example, an elastic material bush 26 (used by inserting a small diameter portion through the reinforcing member 40), or a magnet ring, as in the above embodiment. 28, an adhesive, a nut 32, or the like.
[0025]
According to the sixth embodiment, in addition to the effects of the first to fifth embodiments, the portion where the cylindrical portion 1802 and the engaging recess 1804 of the adjacent element assembly 14 are engaged is reinforced. The member 40 can be reinforced intensively, that is, the steel pipe joint can be reinforced intensively by the reinforcing member 40, which is advantageous in effectively improving the load resistance performance of the structure 10.
[0026]
7A to 7E show modifications of the reinforcing member 40. FIG.
In the sixth embodiment, the inner diameter of the reinforcing member 40 is formed so as to be small enough to allow the element connecting rod-shaped member 16 to slide, and the element connecting rod-shaped member 16 is simply inserted into the reinforcing member 40. Alternatively, the inner diameter of the reinforcing member 40 may be formed to be larger than the outer diameter of the element connecting rod-shaped member 16, and when the element assembly 14 is filled with concrete, Concrete may be filled in the gap between the peripheral surface and the outer peripheral surface of the element connecting rod-shaped member 16 so that the reinforcing member 40 and the element connecting rod-shaped member 16 are integrated. Further, as shown in FIG. 7A, the inner diameter of the reinforcing member 40 is formed to be larger than the outer diameter of the element connecting rod-shaped member 16, and a large number of holes 4002 are formed on the outer peripheral surface as the reinforcing member 40. When the tubular member formed so as to penetrate is used, the concrete is filled from the hole 4002 into the gap between the inner peripheral surface of the reinforcing member 40 and the outer peripheral surface of the element connecting rod member 16 when the element assembly 14 is filled with concrete. This is advantageous in integrating the reinforcing member 40 and the element connecting rod-like member 16.
Furthermore, as shown in FIG. 7 (B), as the reinforcing member 40, a cylindrical member having ribs 4004 formed over the entire length of the outer peripheral surface, or as shown in FIG. 7 (C), both ends in the longitudinal direction of the outer peripheral surface. The use of the cylindrical member having the rib 4004 alone is advantageous in integrating the reinforcing member 40, the element connecting rod member 16, and the concrete C.
Similarly, as shown in FIG. 7D, a steel member having a V-shaped cross section as shown in FIG. 7D or a steel material having a groove-shaped cross section as shown in FIG. This is advantageous in integrating the reinforcing member 40, the element connecting rod-like member 16, and the concrete C. In addition, if concrete C is filled around the element connecting rod-like member 16 positioned on the reinforcing member 40, it is advantageous in terms of rust prevention of the element connecting rod-like member 16.
[0027]
FIGS. 8A and 8B are explanatory diagrams of the seventh embodiment of the present invention.
In the seventh embodiment, the connecting member 44 is used when the element connecting rod-shaped member 16 is disposed, and the element connecting rod-shaped members 16 that connect the adjacent element assemblies 14 are arranged in the same straight line. Or it is different from the said 1st thru | or 5th embodiment in the point which set it as the structure similar to the case where one long rod-shaped steel material is used so that it may become the same curve shape.
In the seventh embodiment, the element connecting rod-like member 16 penetrates the cylindrical portion 1802 and the engaging recess 1804 in a direction substantially orthogonal to the extending direction of the column 12 at a plurality of locations of each element 18. It is arranged.
More specifically, an insertion hole 46 is formed through the cylindrical portion 1802 and the partition plate 1810 at an engagement location between adjacent element assemblies 14, and the connecting member 44 is connected to the adjacent element assembly 14. 14 is disposed so as to extend over the insertion hole 46 of the cylindrical portion 1802 and the insertion hole 46 of the partition plate 1810 on both sides of the cylinder 14.
The element connecting rod-like member 16 is arranged such that the most part in the longitudinal direction is located inside the element 18 and both ends in the longitudinal direction are connected to the connecting member 44. Therefore, the element connecting rod-like member 16 is formed in a short length enough to connect both ends of the element 18 in the longitudinal direction to the connecting member 44.
[0028]
In the present embodiment, a threaded steel rod is used as the element connecting rod-shaped member 16, and a cylindrical coupler formed with a female screw into which the threaded steel rod is screwed is used as the connecting member 44. Commercially available products are used for both the connecting rod-like member 16 and the connecting member 44. In addition, the connection member 44 should just be comprised so that it may have intensity | strength and rigidity, and the thing made from steel materials or a synthetic resin can be used as the connection member 44. FIG. Note that the coupling structure between the element coupling rod-like member 16 and the coupling member 44 is not limited to the above-described screw coupling, and various conventional known structures can be applied. When used, it is advantageous for cost reduction.
When constructing the structural body 10 in the seventh embodiment, the connecting member 44 is disposed at the engaging portion of the adjacent element assemblies 14A and 14B, temporarily fixed, and the connecting member 44 is provided with the connecting member 44. The rod connecting member 16 for element connection is disposed by connecting both ends.
Temporary fixing of the connecting member 44 is the same as in the sixth embodiment. For example, a ring-shaped stopper 42 may be used, or the connecting member 44 may be fitted into the insertion hole 46 and fixed. Alternatively, when the connecting member 44 is made of steel, a magnet ring may be used, or various conventionally known members and means such as an adhesive may be applied.
[0029]
Then, as shown in FIG. 8 (A), the element connecting rod-like members 16 inside each element assembly 14 in all adjacent element assemblies 14 are connected in a straight line via a connecting member 44, or Are connected in the same curve.
The filling of the concrete C into the element assembly 14 and the closed space 1850 may be performed by sequentially filling the concrete assembly C for each element assembly 14 in which the element connecting rod-like members 16 are disposed, After the element connecting rod-like member 16 is disposed in the element assembly 14, the concrete C may be filled into the interior of all the element assemblies 14 and the closed space 1850.
[0030]
According to the seventh embodiment, similarly to the sixth embodiment, in addition to the effects of the first to fifth embodiments, it engages with the cylindrical portion 1802 of the adjacent element assembly 14. The portion where the recess 1804 engages can be reinforced intensively by the connecting member 44, that is, the steel pipe joint can be intensively reinforced by the connecting member 44, which is advantageous in effectively improving the load resistance performance of the structure 10. It becomes.
Further, since all the element connecting rod-like members 16 arranged in the element assembly 14 are connected via the connecting member 44 and extend continuously in the same straight line or the same curved line, it is as if one This is the same configuration as when a long steel rod is used, which is advantageous in further improving the load resistance of the structure 10.
[0031]
FIG. 9 is an explanatory diagram of the eighth embodiment of the present invention.
In the seventh embodiment, when the element assemblies 14 are firmly connected to each other, the wire 50 is used in place of the element connecting rod-shaped member 16, and the engaging portion between the cylindrical portion 1802 and the engaging recess 1804 is used. The point which uses the wire penetration member 52 for arrange | positioning the wire 50 differs from the said 1st thru | or 5th embodiment.
In the eighth embodiment, the wires 50 are disposed through the cylindrical portion 1802 and the engaging recess 1804 in a direction substantially orthogonal to the extending direction of the column 12 at a plurality of locations of each element 18. Yes.
More specifically, the insertion hole 54 is formed through the portion of the cylindrical portion 1802 and the partition plate 1810 at the engagement portion of the adjacent element assemblies 14, and the wire insertion member 52 is connected to the adjacent element assembly 14. 14 is disposed so as to extend over the insertion hole 54 of the cylindrical portion 1802 and the insertion hole 54 of the partition plate 1810 on both sides of the cylinder 14.
And the wire 50 is arrange | positioned so that all the adjacent element 18 may be penetrated and it may extend in the same straight line shape, or may extend in the same curve shape.
[0032]
The wire 50 is made of a flexible steel material.
The wire insertion member 52 is formed in a cylindrical shape with an inner diameter through which the wire 50 can be inserted, and is made of steel or synthetic resin so as to have strength and rigidity.
When constructing the structure 10 in the eighth embodiment, the wire insertion member 52 is disposed at the engaging portion of the adjacent element assemblies 14A and 14B, and is inserted into the wire insertion member 52. A wire 50 is disposed.
Temporary fixing of the wire insertion member 52 is the same as in the sixth embodiment. For example, a ring-shaped stopper 42 may be used, or the wire insertion member 52 is fitted into the insertion hole 54 and fixed. Alternatively, when the wire insertion member 52 is made of steel, a magnet ring may be used, or various conventionally known members and means such as an adhesive may be used.
[0033]
Then, by inserting the wire 50 for each element, the wire 50 is inserted in all adjacent elements, and the wires 50 are arranged in the same straight line via the wire insertion member 52, or in the same curved shape. It arranges in.
The filling of the concrete C into the element assembly 14 and the closed space 1850 may be performed by sequentially filling the concrete assembly C for each element assembly 14 in which the wires 50 are disposed, or all the element assemblies 14 may be filled. After the wires 50 are disposed, the concrete C may be filled in all the element assemblies 14 and the closed spaces 1850.
[0034]
According to the eighth embodiment, in the same way as the sixth and seventh embodiments, in addition to the effects of the first to fifth embodiments, the cylindrical portion 1802 of the adjacent element assembly 14. And the engagement recess 1804 can be intensively reinforced by the wire insertion member 52, that is, the steel pipe joint can be intensively reinforced by the wire insertion member 52, and the load resistance performance of the structure 10 can be effectively improved. This is advantageous for improvement.
Further, when the wire 50 is inserted into each element 18 of all adjacent element assemblies 14 and the wire 50 is continuously extended in the same straight line or the same curved line, the wire 50 is filled. Since the movement is constrained by the concrete C, the construction is the same as when one long element connecting rod-shaped member 18 is used, which is advantageous in further improving the load resistance of the structure 10.
Further, since the wire 50 is flexible, it can be easily inserted into and disposed in the adjacent element 18, which is extremely advantageous for greatly shortening the construction period.
[0035]
In addition, the wire insertion member 52 may be provided by forming the inner diameter thereof with a dimension that is small enough to allow the wire 50 to be inserted while sliding, and simply inserting the wire 50 through the wire insertion member 52. Alternatively, the inner diameter of the wire insertion member 52 is formed to be larger than the outer diameter of the wire y50, and the inner peripheral surface of the wire insertion member 52 and the outer peripheral surface of the wire 50 are filled when the element assembly 14 is filled with concrete. The gap may be filled with concrete, and the wire insertion member 52 and the wire 50 may be integrated.
Further, as shown in FIG. 7A, the inner diameter of the wire insertion member 52 is formed to be larger than the outer diameter of the wire 50, and a large number of holes 4002 are formed through the outer peripheral surface as the wire insertion member 52. When the cylindrical member thus formed is used, the concrete is filled from the hole 4002 into the gap between the inner peripheral surface of the wire insertion member 52 and the outer peripheral surface of the wire 50 when the element assembly 14 is filled with concrete. This is advantageous in integrating the wire 50 and the wire 50.
Furthermore, as shown in FIG. 7 (B), as the wire insertion member 52, a cylindrical member having ribs 4004 formed over the entire length of the outer peripheral surface, or as shown in FIG. 7 (C), in the longitudinal direction of the outer peripheral surface. Using a cylindrical member having ribs 4004 formed only at both ends is advantageous in integrating the wire insertion member 52, the wire 50, and the concrete C.
Similarly, as shown in FIG. 7 (D), as the wire insertion member 52, a steel material having a V-shaped cross section or a steel material having a groove-shaped cross section as shown in FIG. 7 (E) is used. This is also advantageous in integrating the wire insertion member 52, the wire 50, and the concrete C. In addition, if the concrete C is filled around the wire 50 located on the wire insertion member 52, it is advantageous in terms of rust prevention of the wire 50.
[0036]
In the above embodiment, the wires 50 are continuously extended in the same linear shape or the same curved shape in all adjacent element assemblies 14. The connection strength of the element assembly 14 can be increased by the wire 50 and the wire insertion member 52 even if the wire 50 is loosened. In addition, if the wire 50 is continuously extended in the same straight line or the same curved line and the wire 50 is filled with the concrete C in a tensioned state, or the concrete C is filled and the concrete C is filled. If tension is applied to the wire 50 after curing, the wire 50 functions also as a tensile material, which is advantageous in improving the bending strength of the structure 10.
[0037]
In the present embodiment, the case where the structure 10 is provided on the ground has been described. However, the structure 10 can be applied to a structure provided in the ground, such as a earth wall.
Moreover, although embodiment demonstrated the case where the column 12 was arranged in planar shape, the structure 10 is not limited to the shape of embodiment, such as arranging in square frame shape or cyclic | annular form.
[0038]
【The invention's effect】
As is apparent from the above description, according to the structure of the present invention and the construction method of the structure, the element assemblies can be firmly connected to each other by simple work from the inside of the element, and in order to shorten the construction period, Further, it is advantageous in reducing the cost, and further, it is advantageous in securing the strength of the element and, in turn, the strength of the element assembly and structure.
[Brief description of the drawings]
FIGS. 1A and 1B are cross-sectional front views of a structure according to a first embodiment of the present invention.
FIG. 2 is a cross-sectional front view of a structure according to a second embodiment of the present invention.
FIG. 3 is a cross-sectional front view of a structure according to a third embodiment of the present invention.
FIG. 4 is a cross-sectional front view of a structure according to a fourth embodiment of the present invention.
FIG. 5 is a sectional front view of a structure according to a fifth embodiment of the present invention.
FIGS. 6A to 6D are explanatory views of a sixth embodiment of the present invention.
FIGS. 7A to 7E are views showing modifications of the reinforcing member. FIGS.
FIGS. 8A and 8B are explanatory diagrams of a seventh embodiment of the present invention.
FIG. 9 is an explanatory diagram of an eighth embodiment of the present invention.
FIG. 10 is a sectional front view of the earth wall.
[Explanation of symbols]
10 Structure
12 Column
14 Element aggregate
16 Rod connecting element
18 elements
40 Reinforcing member
44 Connecting member
50 wires
52 Wire insertion member

Claims (14)

ほぼ直線状に延在するエレメント集合体と、前記エレメント集合体の内部に充填されたコンクリートとからなる複数の柱体が、それらの長さ方向を平行させて並べられ相互に連結された構造体であって、
前記エレメント集合体は、円筒部と、この円筒部の少なくとも一側が前記円筒部の全長にわたって円筒部の内側に窪んだ係合凹部とからなる中空状の複数のエレメントが同軸上でほぼ直線状に延在するように連結されて構成され、
前記隣り合う柱体は、それら隣り合うエレメント集合体の各エレメントの係合凹部と円筒部とが係合した状態で並べられ、
前記係合凹部と円筒部とが係合した箇所を貫通して隣り合う２つのエレメント集合体の内部に収容できる長さのエレメント連結用棒状部材が複数設けられ、
前記柱体を構成するエレメント集合体の各エレメントの延在方向の複数箇所において前記柱体の延在方向とほぼ直交する方向で前記係合凹部と円筒部とが係合した箇所を通るよう前記エレメント連結用棒状部材が隣り合うエレメントの内部にわたって配設されている、
ことを特徴とする構造体。A structure in which a plurality of pillars composed of an element assembly extending substantially linearly and concrete filled in the element assembly are arranged in parallel with each other in the length direction. Because
In the element assembly, a plurality of hollow elements each having a cylindrical portion and an engagement concave portion in which at least one side of the cylindrical portion is recessed inside the cylindrical portion over the entire length of the cylindrical portion are substantially linearly arranged on the same axis. Concatenated to extend,
The adjacent column bodies are arranged in a state in which the engagement concave portions and the cylindrical portions of the elements of the adjacent element assemblies are engaged,
A plurality of element connecting rod-like members having a length that can be accommodated in two adjacent element assemblies penetrating through the place where the engagement concave portion and the cylindrical portion are engaged,
The plurality of locations in the extending direction of each element of the element assembly constituting the column pass through the portion where the engaging recess and the cylindrical portion are engaged in a direction substantially orthogonal to the extending direction of the column. The element connecting rod-shaped member is disposed over the inside of the adjacent element,
A structure characterized by that. 前記エレメント連結用棒状部材は、ねじふし鉄筋またはねじふし鋼棒であることを特徴とする請求項１記載の構造体。The structure according to claim 1, wherein the element connecting rod-shaped member is a threaded reinforcing bar or a threaded steel bar. 前記エレメント連結用棒状部材の端部に、充填されるコンクリートに対してアンカとして機能するナット部材が螺合されていることを特徴とする請求項２記載の構造体。The structure according to claim 2, wherein a nut member that functions as an anchor for the concrete to be filled is screwed into an end portion of the element connecting rod-like member. 前記充填されたコンクリートに埋設されたエレメント連結用棒状部材にプレストレスが付与されていることを特徴とする請求項１記載の構造体。The structure according to claim 1, wherein prestress is applied to the element connecting rod-like member embedded in the filled concrete. 前記エレメント連結用棒状部材の前記係合した箇所への挿通用の強度と剛性を有する補強部材が設けられ、前記補強部材は前記係合凹部と円筒部とが係合した箇所を貫通する長さで形成され、前記補強部材は前記係合した双方の係合凹部と円筒部箇所にわたって配設され、前記エレメント連結用棒状部材は前記補強部材を介して配設されていることを特徴とする請求項１記載の構造体。A reinforcing member having strength and rigidity for insertion of the element connecting rod-like member into the engaged portion is provided, and the reinforcing member has a length penetrating the portion where the engaging recess and the cylindrical portion are engaged. The reinforcing member is disposed over both the engaging concave portions and the cylindrical portion, and the element connecting rod member is disposed via the reinforcing member. Item 1. The structure according to Item 1. ほぼ直線状に延在するエレメント集合体と、前記エレメント集合体の内部に充填されたコンクリートとからなる複数の柱体が、それらの長さ方向を平行させて並べられ相互に連結された構造体であって、
前記エレメント集合体は、円筒部と、この円筒部の少なくとも一側が前記円筒部の全長にわたって円筒部の内側に窪んだ係合凹部とからなる中空状の複数のエレメントが同軸上でほぼ直線状に延在するように連結されて構成され、
前記隣り合う柱体は、それら隣り合うエレメント集合体の各エレメントの係合凹部と円筒部とが係合した状態で並べられ、
前記係合凹部と円筒部とが係合した箇所を貫通する長さの強度と剛性を有する連結部材が複数設けられ、
前記複数の連結部材は、それぞれ前記係合した係合凹部と円筒部箇所にわたり貫通して配設され、
隣り合う各エレメントの内部においてその長手方向の両端が前記連結部材に連結されてエレメント連結用棒状部材が配設され、これら隣り合うエレメントの内部の全てのエレメント連結用棒状部材は前記柱体の延在方向とほぼ直交する方向で同一直線状にあるいは同一曲線状に延在するように配置され、
このように配置されたエレメント連結用棒状部材は、前記柱体を構成するエレメント集合体の各エレメントの延在方向の複数箇所を通るように設けられている、
ことを特徴とする構造体。A structure in which a plurality of pillars composed of an element assembly extending substantially linearly and concrete filled in the element assembly are arranged in parallel with each other in the length direction. Because
In the element assembly, a plurality of hollow elements each having a cylindrical portion and an engagement concave portion in which at least one side of the cylindrical portion is recessed inside the cylindrical portion over the entire length of the cylindrical portion are substantially linearly arranged on the same axis. Concatenated to extend,
The adjacent column bodies are arranged in a state in which the engagement concave portions and the cylindrical portions of the elements of the adjacent element assemblies are engaged,
A plurality of connecting members having strength and rigidity of a length penetrating through the portion where the engaging recess and the cylindrical portion are engaged,
Each of the plurality of connecting members is disposed through the engaged engaging recess and the cylindrical portion,
Inside each adjacent element, both ends in the longitudinal direction are connected to the connecting member, and an element connecting rod-like member is provided, and all the element connecting rod-like members inside these adjacent elements are extended from the column body. It is arranged to extend in the same straight line or the same curved line in a direction substantially orthogonal to the current direction,
The element connecting rod-like member arranged in this way is provided so as to pass through a plurality of locations in the extending direction of each element of the element assembly constituting the column.
A structure characterized by that. 前記エレメント連結用棒状部材はねじふし鋼棒であり、前記連結部材は前記ねじふし鋼棒に螺合する雌ねじが形成された筒状部材であることを特徴とする請求項６記載の構造体。The structure according to claim 6, wherein the element connecting rod-shaped member is a threaded steel rod, and the connecting member is a cylindrical member formed with a female screw that is screwed into the screw-threaded steel rod. ほぼ直線状に延在するエレメント集合体と、前記エレメント集合体の内部に充填されたコンクリートとからなる複数の柱体が、それらの長さ方向を平行させて並べられ相互に連結された構造体であって、
前記エレメント集合体は、円筒部と、この円筒部の少なくとも一側が前記円筒部の全長にわたって円筒部の内側に窪んだ係合凹部とからなる中空状の複数のエレメントが同軸上でほぼ直線状に延在するように連結されて構成され、
前記隣り合う柱体は、それら隣り合うエレメント集合体の各エレメントの係合凹部と円筒部とが係合した状態で並べられ、
前記係合凹部と円筒部とが係合した箇所を貫通する長さの強度と剛性を有するワイヤ挿通部材が複数設けられ、
前記複数のワイヤ挿通部材は、それぞれ前記係合した係合凹部と円筒部箇所にわたって貫通するように配設され、
可撓可能な鋼材製のワイヤが、前記柱体の延在方向とほぼ直交する方向で前記ワイヤ挿通部材を通って前記複数のエレメント内部にわたって挿通され、
このように挿通されたワイヤが、前記柱体を構成するエレメント集合体の各エレメントの延在方向の複数箇所を通るように設けられている、
ことを特徴とする構造体。A structure in which a plurality of pillars composed of an element assembly extending substantially linearly and concrete filled in the element assembly are arranged in parallel with each other in the length direction. Because
In the element assembly, a plurality of hollow elements each having a cylindrical portion and an engagement concave portion in which at least one side of the cylindrical portion is recessed inside the cylindrical portion over the entire length of the cylindrical portion are substantially linearly arranged on the same axis. Concatenated to extend,
The adjacent column bodies are arranged in a state in which the engagement concave portions and the cylindrical portions of the elements of the adjacent element assemblies are engaged,
A plurality of wire insertion members having strength and rigidity of a length penetrating through the place where the engagement concave portion and the cylindrical portion are engaged,
The plurality of wire insertion members are disposed so as to penetrate through the engaged engaging recess and the cylindrical portion, respectively.
A flexible steel wire is inserted across the elements through the wire insertion member in a direction substantially perpendicular to the extending direction of the column,
The wires inserted in this way are provided so as to pass through a plurality of locations in the extending direction of each element of the element assembly constituting the column body,
A structure characterized by that. 前記ワイヤは、前記柱体の延在方向とほぼ直交する方向で同一直線状にあるいは同一曲線状に延在するように前記ワイヤ挿通部材を通って複数のエレメント内部にわたって挿通されていることを特徴とする請求項８記載の構造体。The wire is inserted over a plurality of elements through the wire insertion member so as to extend in the same straight line or the same curved line in a direction substantially orthogonal to the extending direction of the column body. The structure according to claim 8. 円筒部と、この円筒部の少なくとも一側が前記円筒部の全長にわたって円筒部の内側に窪んだ係合凹部とからなる複数の中空状のエレメントを同軸上で連結してほぼ直線状に延在するエレメント集合体を複数作り、それらエレメント集合体の係合凹部と円筒部とを係合させて複数のエレメント集合体を並べる工程と、
前記エレメント集合体の延在方向とほぼ直交する方向で前記係合凹部と円筒部とが係合した箇所を通るように隣り合うエレメント集合体の内部にわたってエレメント連結用棒状部材を配設する工程と、
前記エレメント集合体の内部にコンクリートを充填しエレメント集合体とコンクリートからなる柱体を形成する工程とを有する構造体の構築工法であって、
前記エレメント連結用棒状部材を、前記係合凹部と円筒部とが係合した箇所を貫通して隣り合う２つのエレメント集合体の内部に収容できる長さで形成し、
前記コンクリートを充填する前に、前記係合凹部と円筒部とが係合した箇所を通るように隣り合う２つのエレメント集合体の各エレメントの延在方向の複数箇所においてそれらの内部にわたり前記エレメント連結用棒状部材を挿通させて仮固定し、
このようにして隣り合う２つのエレメント集合体毎に前記エレメント連結用棒状部材を挿通させ仮固定したのちエレメント集合体の内部にコンクリートを充填して柱体を形成するようにした、
ことを特徴とする構造体の構築工法。A plurality of hollow elements each consisting of a cylindrical portion and an engaging recess recessed at the inner side of the cylindrical portion over the entire length of the cylindrical portion are coaxially connected to extend substantially linearly. Creating a plurality of element assemblies, arranging the plurality of element assemblies by engaging the engaging recesses and cylindrical portions of the element assemblies;
Disposing an element connecting rod-like member over the interior of adjacent element assemblies so as to pass through the portion where the engaging recess and the cylindrical portion are engaged in a direction substantially perpendicular to the extending direction of the element assembly; ,
A method of constructing a structure having a step of filling the inside of the element assembly with concrete and forming a column made of the element assembly and concrete,
The element connecting rod-shaped member is formed with a length that can be accommodated in the interior of two element assemblies adjacent to each other through the portion where the engaging recess and the cylindrical portion are engaged,
Prior to filling the concrete, the element coupling is carried out over a plurality of locations in the extending direction of each element of two adjacent element assemblies so as to pass through the location where the engaging recess and the cylindrical portion are engaged. Insert the rod-shaped member for temporary fixing,
In this way, after inserting and temporarily fixing the element connecting rod-like member for every two adjacent element assemblies, concrete was filled into the element assembly to form a column.
The construction method of the structure characterized by this. 円筒部と、この円筒部の少なくとも一側が前記円筒部の全長にわたって円筒部の内側に窪んだ係合凹部とからなる複数の中空状のエレメントを同軸上で連結してほぼ直線状に延在するエレメント集合体を複数作り、それらエレメント集合体の係合凹部と円筒部とを係合させて複数のエレメント集合体を並べる工程と、
前記エレメント集合体の延在方向とほぼ直交する方向で前記係合凹部と円筒部とが係合した箇所を通るように隣り合うエレメント集合体の内部にわたってエレメント連結用棒状部材を配設する工程と、
前記エレメント集合体の内部にコンクリートを充填しエレメント集合体とコンクリートからなる柱体を形成する工程とを有する構造体の構築工法であって、
前記エレメント連結用棒状部材を、前記係合凹部と円筒部とが係合した箇所を貫通して隣り合う２つのエレメント集合体の内部に収容できる長さで形成し、
前記コンクリートを充填する前に、前記係合凹部と円筒部とが係合した箇所を通るように隣り合う２つのエレメント集合体の各エレメントの延在方向の複数箇所においてそれらの内部にわたり前記エレメント連結用棒状部材を挿通させて仮固定し、
このようにして隣り合う２つのエレメント集合体に前記エレメント連結用棒状部材を挿通させ仮固定したのち隣り合う２つのエレメント集合体のうちの一方のエレメント集合体の内部にコンクリートを充填し、
前記隣り合う２つのエレメント集合体のうちの他方のエレメント集合体と、このエレメント集合体に隣り合うエレメント集合体との内部にわたり前記係合凹部と円筒部とが係合した箇所を通るように前記エレメント連結用棒状部材を挿通させ仮固定したのち前記他方のエレメント集合体の内部にコンクリートを充填し、このようにして隣り合う２つのエレメント集合体毎に前記鋼材を挿通させ仮固定したのちエレメント集合体の内部に順次コンクリートを充填して柱体を形成するようにした、
ことを特徴とする構造体の構築工法。A plurality of hollow elements each consisting of a cylindrical portion and an engaging recess recessed at the inner side of the cylindrical portion over the entire length of the cylindrical portion are coaxially connected to extend substantially linearly. Creating a plurality of element assemblies, arranging the plurality of element assemblies by engaging the engaging recesses and cylindrical portions of the element assemblies;
Disposing an element connecting rod-like member over the interior of adjacent element assemblies so as to pass through the portion where the engaging recess and the cylindrical portion are engaged in a direction substantially perpendicular to the extending direction of the element assembly; ,
A method of constructing a structure having a step of filling the inside of the element assembly with concrete and forming a column made of the element assembly and concrete,
The element connecting rod-shaped member is formed with a length that can be accommodated in the interior of two element assemblies adjacent to each other through the portion where the engaging recess and the cylindrical portion are engaged,
Prior to filling the concrete, the element coupling is carried out over a plurality of locations in the extending direction of each element of two adjacent element assemblies so as to pass through the location where the engaging recess and the cylindrical portion are engaged. Insert the rod-shaped member for temporary fixing,
In this way, after inserting and temporarily fixing the element connecting rod-like member into two adjacent element aggregates, the inside of one of the two adjacent element aggregates is filled with concrete,
Passing through the portion where the engaging recess and the cylindrical portion are engaged with each other over the other of the two adjacent element assemblies and the element assembly adjacent to the element assembly. After the element-connecting rod-shaped member is inserted and temporarily fixed, the inside of the other element assembly is filled with concrete, and thus the steel material is inserted and temporarily fixed for every two adjacent element assemblies. The inside of the body was filled with concrete sequentially to form a pillar body.
The construction method of the structure characterized by this. エレメント連結用棒状部材としてねじふし鉄筋またはねじふし鋼棒を用い、前記エレメント連結用棒状部材が、前記他方のエレメント集合体の内部でエレメントを構成する壁部に臨む箇所に該エレメント連結用棒状部材に螺合させてナットを配設し、前記一方のエレメント集合体にコンクリートを充填し硬化させた後、ナットを締め付けることで前記充填されたコンクリート中に埋設されたエレメント連結用棒状部材部分にプレストレスを付与するようにしたことを特徴とする請求項１１記載の構造体の構築工法。A threaded reinforcing bar or threaded steel bar is used as the element connecting rod-shaped member, and the element connecting rod-shaped member is located at a position where the element connecting rod-shaped member faces the wall portion constituting the element inside the other element assembly. A nut is arranged by screwing onto the element assembly, and the one element assembly is filled with concrete and hardened. Then, the nut is tightened and the element connecting rod-like member embedded in the filled concrete is pre-stressed. The structure construction method according to claim 11, wherein stress is applied. エレメント連結用棒状部材としてねじふし鉄筋またはねじふし鋼棒を用い、前記エレメント連結用棒状部材の両端に定着用のナット部材を螺合し、前記充填されるコンクリートに対して前記ナット部材をアンカとして機能させるようにしたことを特徴とする請求項１０，１１または１２記載の構造物の構築工法。A threaded reinforcing bar or a threaded steel bar is used as the element connecting bar-like member, a fixing nut member is screwed to both ends of the element connecting bar-like member, and the nut member is used as an anchor for the concrete to be filled. The construction method for a structure according to claim 10, 11 or 12, wherein the construction method is made to function. 前記エレメントは、一側がその全長にわたって切り欠かれた鋼管と、前記鋼管の内部で前記切り欠かれた部分の内側に取着された仕切り板とで構成され、前記円筒部は前記鋼管の円筒部分により構成され、前記係合凹部は切り欠かれた鋼管部分と仕切り板とにより構成され、前記エレメント連結用棒状部材は、前記係合凹部に係合された鋼管部分と、この鋼管部分に臨む前記仕切り板とにわたり挿通されることを特徴とする請求項１０乃至１３に何れか１項記載の構造体の構築工法。The element is composed of a steel pipe having one side cut out along its entire length, and a partition plate attached to the inside of the cut-out portion inside the steel pipe, and the cylindrical portion is a cylindrical portion of the steel pipe The engaging recess is constituted by a notched steel pipe portion and a partition plate, and the element connecting rod-like member is engaged with the engaging recess, and the steel pipe portion faces the steel pipe portion. The structure construction method according to any one of claims 10 to 13, wherein the structure is inserted through the partition plate.
JP2002229536A 2002-03-22 2002-08-07 Structure and structure construction method Expired - Fee Related JP4052635B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100815174B1 (en) 2006-09-11 2008-03-20 (주)대우건설 Pipe Roof Tunnel and Constructing Method thereof

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Publication number Priority date Publication date Assignee Title
JPS61102908A (en) * 1985-05-17 1986-05-21 Sumikin Kozai Kogyo Kk Steel cell dam
JPH02125089A (en) * 1988-11-02 1990-05-14 Hitachi Zosen Corp Continuous wall and shield excavator for building continuous wall and building method for building continuous wall
JP2000213275A (en) * 1999-01-25 2000-08-02 Ryoji Honma Method for constituting earth pressure wall and earth pressure wall constituting pipe
JP2003113695A (en) * 2001-10-03 2003-04-18 Ryoji Honma Method and propelling pipe for forming earth pressure wall

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61102908A (en) * 1985-05-17 1986-05-21 Sumikin Kozai Kogyo Kk Steel cell dam
JPH02125089A (en) * 1988-11-02 1990-05-14 Hitachi Zosen Corp Continuous wall and shield excavator for building continuous wall and building method for building continuous wall
JP2000213275A (en) * 1999-01-25 2000-08-02 Ryoji Honma Method for constituting earth pressure wall and earth pressure wall constituting pipe
JP2003113695A (en) * 2001-10-03 2003-04-18 Ryoji Honma Method and propelling pipe for forming earth pressure wall

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100815174B1 (en) 2006-09-11 2008-03-20 (주)대우건설 Pipe Roof Tunnel and Constructing Method thereof

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