JP2009102981A - Prestressed concrete structure - Google Patents

Prestressed concrete structure Download PDF

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JP2009102981A
JP2009102981A JP2009003156A JP2009003156A JP2009102981A JP 2009102981 A JP2009102981 A JP 2009102981A JP 2009003156 A JP2009003156 A JP 2009003156A JP 2009003156 A JP2009003156 A JP 2009003156A JP 2009102981 A JP2009102981 A JP 2009102981A
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concrete
embedded
prestressed concrete
prestressed
plate
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JP4954226B2 (en
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Shinji Tsuchida
伸治 土田
Hidehiko Seta
英彦 瀬田
Yasuhiro Ito
康宏 伊藤
Yasuo Watanabe
康夫 渡辺
Susumu Onda
奨 音田
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Nippon Concrete Industries Co Ltd
Nihon Samicon Co Ltd
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Nippon Concrete Industries Co Ltd
Nihon Samicon Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a prestressed concrete structure capable of securing sufficient connection strength with a frame material with a simple structure. <P>SOLUTION: A PC wall body 11c as a prestressed concrete structure arranges a PC steel material 16 as a tensional material for the prestressed concrete in a shaft direction inside of a concrete forming part 21 formed in long-sized by a centrifugal force forming method. A square tube 51 for connecting with a frame material is embedded into box in an exposed state on the peripheral of the concrete forming part 21 in a midway part in the shaft direction of the concrete forming part 21. The square tube 51 is formed in a similar shape along with the peripheral of the concrete forming part 21 and has a concave groove 22a which is consecutively connected to a concave groove 22 of the concrete forming part 21. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、構架材接続構造を有するプレストレストコンクリート構造体に関するものである。以下、プレストレストコンクリートを、「ＰＣ」と略称する。   The present invention relates to a prestressed concrete structure having a construction material connection structure. Hereinafter, prestressed concrete is abbreviated as “PC”.

ＰＣ中空杭を柱列式に配置したＰＣ中空杭壁に構架材を接合した接合構造を形成することにより、ＰＣ中空杭壁を仮設の山留壁としてのみならず、そのまま地下構造物の構造体として利用できるようにし、施工性向上・工期短縮を図るようにしたものがある。   By forming a joint structure in which PC hollow pile walls with PC hollow piles arranged in a columnar structure are joined to the construction material, the PC hollow pile wall is not only used as a temporary mountain retaining wall but also as a structure for underground structures. To improve the workability and shorten the work period.

すなわち、ＰＣ中空杭の側面に取り付けられた埋込み鋼板に、構架材の端部が固定されるように、ＰＣ中空杭における構架材接合構造を構成する。ＰＣ中空杭は、構架材との接合部を補強する補強筋と、補強筋と埋込み鋼板とを連結するアンカー筋とを備え、さらに埋込み鋼板には構架材接合鋼板が固定され、構架材を構成するコンクリートによってこれらの鋼板を覆うようにしている（例えば、特許文献１参照）。   That is, the construction material joining structure in the PC hollow pile is configured such that the end of the construction material is fixed to the embedded steel plate attached to the side surface of the PC hollow pile. The PC hollow pile is equipped with reinforcing bars that reinforce the joints with the structural members, and anchor bars that connect the reinforcing bars and the embedded steel plates, and the embedded steel plates are fixed to the embedded steel plates to form the structural materials. These steel plates are covered with concrete to be used (see, for example, Patent Document 1).

特開平１１−３６３２７号公報（第３−４頁、図１−２）JP 11-36327 A (page 3-4, FIG. 1-2)

このように、従来のＰＣ中空杭は、構架材との接合部を補強する補強筋と、補強筋と埋込み鋼板とを連結するアンカー筋とを備えているが、このような配筋構造は、構造が複雑で、配筋作業も容易でない。さらに、接続強度を確保するために配筋構造を簡略化することはできない。   As described above, the conventional PC hollow pile includes a reinforcing bar that reinforces the joint portion with the frame material, and an anchor bar that connects the reinforcing bar and the embedded steel plate. The structure is complex and the bar arrangement work is not easy. Furthermore, the reinforcement structure cannot be simplified in order to ensure the connection strength.

本発明は、このような点に鑑みなされたもので、構造が簡単であってかつ構架材との十分な接続強度を確保できるプレストレストコンクリート構造体を提供することを目的とするものである。   The present invention has been made in view of these points, and an object of the present invention is to provide a prestressed concrete structure that has a simple structure and can secure sufficient connection strength with a construction material.

請求項１記載の発明は、長尺に成形されたコンクリート成形部と、コンクリート成形部内の軸方向に配設されたプレストレストコンクリート用の緊張材と、コンクリート成形部の軸方向途中部の外周面に露出した状態でボックス状に埋込まれた構架材接続用の鋼管とを具備したプレストレストコンクリート構造体であり、そして、コンクリート成形部の外周面にボックス状に埋込まれた構架材接続用の鋼管によって、構架材との十分な接続強度を確保する。しかも、この構架材接続用の鋼管は、コンクリート成形部内に配設されたプレストレストコンクリート用の緊張材と関係なくコンクリート成形部の外周面に設置可能であり、複雑な配筋構造も必要としない。   According to the first aspect of the present invention, there is provided a concrete molded portion formed in a long length, a tension material for prestressed concrete disposed in the axial direction in the concrete molded portion, and an outer peripheral surface of the intermediate portion in the axial direction of the concrete molded portion. A prestressed concrete structure including a steel pipe for connecting a structural member embedded in a box shape in an exposed state, and a steel pipe for connecting a structural material embedded in a box shape on the outer peripheral surface of a concrete molding portion As a result, sufficient connection strength with the frame material is secured. Moreover, the steel pipe for connecting the construction material can be installed on the outer peripheral surface of the concrete molding portion regardless of the prestressed concrete tension material arranged in the concrete molding portion, and does not require a complicated reinforcing bar arrangement structure.

請求項２記載の発明は、長尺に成形されたコンクリート成形部と、コンクリート成形部内の軸方向に配設されたプレストレストコンクリート用の緊張材と、コンクリート成形部の軸方向途中部の一側面およびこの一側面に対し反対側に位置する他側面に露出した状態で埋込まれた複数の構架材接続用の埋込みプレートと、緊張材を避けてコンクリート成形部内に配設され一側面および他側面の埋込みプレートの左右一端部間および他端部間を連結する連結プレートとを具備したプレストレストコンクリート構造体であり、そして、コンクリート成形部の一側面および他側面に露出した状態で埋込まれた構架材接続用の埋込みプレートの左右一端部間および他端部間を、コンクリート成形部内の連結プレートにより連結したボックス構造によって、構架材との十分な接続強度を確保する。しかも、一側および他側の構架材接続用の埋込みプレートの左右一端部間および他端部間を、プレストレストコンクリート用の緊張材を避けてコンクリート成形部内に配設された連結プレートにより連結した簡単な構造で、接続強度を確保する。   The invention according to claim 2 is a concrete molding part formed in a long shape, a tension material for prestressed concrete arranged in the axial direction in the concrete molding part, one side surface in the axial direction of the concrete molding part, and An embedded plate for connecting a plurality of construction materials embedded in an exposed state on the other side opposite to the one side surface, and disposed in the concrete molding portion so as to avoid the tension material. A prestressed concrete structure comprising a connecting plate that connects between the left and right end portions and the other end portion of the embedded plate, and a frame material embedded in a state exposed on one side surface and the other side surface of the concrete molded portion A box structure in which the connection between the left and right ends and the other end of the connection embedded plate is connected by a connection plate in the concrete molding section , To ensure sufficient connection strength between 構架 material. Moreover, it is easy to connect the left and right ends and the other end of the embedded plate for connecting the construction material on the one side and the other side with a connecting plate arranged in the concrete molding part while avoiding the tension material for prestressed concrete. The connection strength is ensured with a simple structure.

請求項１記載の発明によれば、コンクリート成形部の外周面にボックス状に埋込まれた構架材接続用の鋼管によって、構架材との十分な接続強度を確保できる。しかも、この構架材接続用の鋼管は、コンクリート成形部内に配設されたプレストレストコンクリート用の緊張材と関係なくコンクリート成形部の外周面に設置でき、複雑な配筋構造を防止できる。   According to the first aspect of the present invention, sufficient strength of connection with the frame material can be secured by the steel pipe for connecting the frame material embedded in a box shape on the outer peripheral surface of the concrete molding portion. In addition, the steel pipe for connecting the construction material can be installed on the outer peripheral surface of the concrete molding portion irrespective of the prestressed concrete tension material arranged in the concrete molding portion, and a complicated reinforcement structure can be prevented.

請求項２記載の発明によれば、コンクリート成形部の一側面および他側面に露出した状態で埋込まれた構架材接続用の埋込みプレートの左右一端部間および他端部間を、コンクリート成形部内の連結プレートにより連結したボックス構造によって、構架材との十分な接続強度を確保できる。しかも、一側および他側の構架材接続用の埋込みプレートの左右一端部間および他端部間を、プレストレストコンクリート用の緊張材を避けてコンクリート成形部内に配設された連結プレートにより連結した簡単な構造で、接続強度を確保できる。   According to the second aspect of the present invention, between the left and right end portions and between the other end portions of the embedded plate for connecting the building material embedded in a state exposed on one side surface and the other side surface of the concrete molded portion, With the box structure connected by the connecting plate, sufficient connection strength with the construction material can be secured. Moreover, it is easy to connect the left and right ends and the other end of the embedded plate for connecting the construction material on the one side and the other side with a connecting plate arranged in the concrete molding part while avoiding the tension material for prestressed concrete. Connection strength can be secured with a simple structure.

本発明に係るプレストレストコンクリート構造体における構架材接続部分の第１の実施の形態を示す横断方向断面図である。It is a transverse direction sectional view showing a 1st embodiment of a frame connection part in a prestressed concrete structure concerning the present invention. 同上構造体の構架材接続部分の正面図である。It is a front view of the construction material connection part of a structure same as the above. 図１におけるIII−III線断面図である。It is the III-III sectional view taken on the line in FIG. 同上構造体を用いて施工した地下構造物を示す断面図である。It is sectional drawing which shows the underground structure constructed using the structure same as the above. 本発明に係るプレストレストコンクリート構造体における構架材接続部分の第２の実施の形態を示す横断方向断面図である。It is a transverse direction sectional view showing a 2nd embodiment of a frame connection part in a prestressed concrete structure concerning the present invention. 同上構造体の構架材接続部分の正面図である。It is a front view of the construction material connection part of a structure same as the above. 図５におけるVII−VII線断面図である。It is the VII-VII sectional view taken on the line in FIG.

以下、本発明を、図１乃至図４に示された第１の実施の形態、図５乃至図７に示された第２の実施の形態を参照して、詳細に説明する。   Hereinafter, the present invention will be described in detail with reference to the first embodiment shown in FIGS. 1 to 4 and the second embodiment shown in FIGS.

先ず、図１乃至図４に示された第１の実施の形態を説明する。   First, the first embodiment shown in FIGS. 1 to 4 will be described.

図４は、地下道、地下鉄、地下貯水池などの地下構造物を示し、先ず、角形断面のプレストレストコンクリート構造体としてのプレストレストコンクリート壁体（以下、プレストレストコンクリートを「ＰＣ」という）11を連続的に地中に挿入して止水処理することで２列の連壁が形成され、これらの連壁の上端間に頂版12が現場打ちコンクリート、またはハーフプレキャストコンクリートと現場打ちコンクリートにより形成され、２列の連壁間を掘下げることで、この間に空間13が形成され、２列の連壁の比較的下部間に現場打ちコンクリート、またはハーフプレキャストコンクリートと現場打ちコンクリートにより構架材としての底版14が形成されている。   FIG. 4 shows an underground structure such as an underground passage, a subway, and an underground reservoir. First, a prestressed concrete wall body (hereinafter referred to as “PC”) 11 as a prestressed concrete structure having a square cross section is continuously grounded. Two rows of continuous walls are formed by inserting and water-stopping inside, and the top plate 12 is formed between the upper ends of these continuous walls by using cast-in-place concrete, or half precast concrete and cast-in-place concrete. By digging down between the continuous walls, a space 13 is formed between them, and the bottom plate 14 as a construction material is formed by the cast-in-place concrete or half precast concrete and the cast-in-place concrete between the relatively lower part of the two rows of continuous walls. Has been.

図１乃至図３は、プレストレストコンクリート構造体としてのＰＣ壁体11cを示し、遠心力成形法などで長尺に成形されたコンクリート成形部21の内部には、プレストレストコンクリート用の緊張材としてのＰＣ鋼材16が軸方向に配設され、コンクリート成形部21の軸方向途中部には、構架材接続用の角形の鋼管51がコンクリート成形部21の外周面に露出した状態でボックス状に埋込まれている。   FIGS. 1 to 3 show a PC wall 11c as a prestressed concrete structure, and a PC as a tension material for prestressed concrete is placed inside a concrete molding portion 21 formed long by a centrifugal molding method or the like. A steel material 16 is arranged in the axial direction, and a rectangular steel pipe 51 for connecting a frame material is embedded in a box shape in the middle of the concrete molding portion 21 in the axial direction, exposed on the outer peripheral surface of the concrete molding portion 21. ing.

この角形の鋼管51は、コンクリート成形部21の外形に沿って同様の形状に成形され、コンクリート成形部21の凹溝22と連続する凹溝22aを有している。   The square steel pipe 51 is formed into a similar shape along the outer shape of the concrete molding portion 21 and has a concave groove 22 a that is continuous with the concave groove 22 of the concrete molding portion 21.

そして、コンクリート成形部21の外周面にボックス状に埋込まれた構架材接続用の角形の鋼管51において凹溝22aが設けられていない平面部52に、構架材としての底版14の鋼材を、接続ボルトまたは溶接付けにより接続することで、底版14との十分な接続強度を確保する。   Then, the steel plate of the bottom slab 14 as the frame material is formed on the flat surface portion 52 in which the concave groove 22a is not provided in the square steel pipe 51 for connecting the frame material embedded in the box shape on the outer peripheral surface of the concrete molding portion 21, By connecting with connecting bolts or welding, sufficient connection strength with the bottom plate 14 is secured.

しかも、この底版接続用の鋼管51は、コンクリート成形部21内に配設されたＰＣ鋼材16と関係なくコンクリート成形部21の外周面に設置するもので、複雑な配筋構造を必要としない。   In addition, the steel pipe 51 for connecting the bottom plate is installed on the outer peripheral surface of the concrete molding portion 21 regardless of the PC steel material 16 disposed in the concrete molding portion 21, and does not require a complicated bar arrangement structure.

次に、図５乃至図７に示された第２の実施の形態を説明する。   Next, a second embodiment shown in FIGS. 5 to 7 will be described.

図５乃至図７は、プレストレストコンクリート構造体としてのＰＣ壁体11dを示し、遠心力成形法などで長尺に成形されたコンクリート成形部21の内部には、プレストレストコンクリート用の緊張材としてのＰＣ鋼材16が軸方向に配設され、コンクリート成形部21の軸方向途中部の一側面およびこの一側面に対し反対側に位置する他側面には、構架材接続用の埋込みプレート61がそれぞれ露出した状態で埋込まれている。   5 to 7 show a PC wall 11d as a prestressed concrete structure, and a PC as a tension material for prestressed concrete is placed inside a concrete molding portion 21 formed long by a centrifugal molding method or the like. The steel material 16 is disposed in the axial direction, and the embedded plate 61 for connecting the construction material is exposed on one side surface in the axial direction of the concrete molding portion 21 and on the other side surface opposite to the one side surface. Embedded in the state.

これらの一側面および他側面の埋込みプレート61は、それらの左右一端部間および他端部間を溶接された連結プレート62により連結されている。これらの連結プレート62は、ＰＣ鋼材16を避けてコンクリート成形部21内に配設されている。この連結プレート62には、図７に示されるように複数の穴63が穿設されている。   The embedded plates 61 on the one side surface and the other side surface are connected to each other by a connecting plate 62 welded between the left and right end portions and the other end portion. These connecting plates 62 are disposed in the concrete molding portion 21 while avoiding the PC steel material 16. The connecting plate 62 has a plurality of holes 63 as shown in FIG.

そして、遠心力成形時に両側の連結プレート62，62間に注入されたコンクリートは、穴63を経て連結プレート62の外側にも供給され、また、この穴63内で固化されたコンクリートは、コンクリート成形部21内での連結プレート62の固定を確実にし、連結プレート62に作用する荷重を支えることができる。   The concrete injected between the connecting plates 62 and 62 on both sides at the time of centrifugal force forming is also supplied to the outside of the connecting plate 62 through the holes 63, and the concrete solidified in the holes 63 is formed into concrete. It is possible to secure the connection plate 62 in the portion 21 and to support a load acting on the connection plate 62.

このように、コンクリート成形部21の一側面および他側面に露出した状態で埋込まれた構架材接続用の埋込みプレート61の左右一端部間および他端部間を、コンクリート成形部21内の連結プレート62により連結したボックス構造によって、十分な強度を有する構架材接続用の構造物を構成し、その埋込みプレート61に構架材としての底版14の鋼材を、接続ボルトまたは溶接付けにより接続することで、底版14との十分な接続強度を確保する。   In this way, the connection between the left and right end portions and the other end portion of the embedding plate 61 for connecting the construction material embedded in a state exposed on one side surface and the other side surface of the concrete molding portion 21 is connected in the concrete molding portion 21. The box structure connected by the plate 62 constitutes a structure for connecting the construction material having sufficient strength, and the steel plate 14 as the construction material is connected to the embedded plate 61 by connection bolts or welding. Ensuring sufficient connection strength with the bottom plate 14.

しかも、一側および他側の底版接続用の埋込みプレート61の左右一端部間および他端部間を、ＰＣ鋼材16を避けてコンクリート成形部21内に配設された連結プレート62により連結した簡単な構造で、接続強度を確保できる。   In addition, the left and right end portions and the other end portions of the embedded plate 61 for connecting the bottom plate on one side and the other side are simply connected by a connecting plate 62 disposed in the concrete molding portion 21 while avoiding the PC steel material 16. Connection strength can be secured with a simple structure.

本発明のプレストレストコンクリート構造体は、ＰＣ壁体11，11c，11dに限定されるものではなく、ＰＣ杭体またはＰＣ柱体にも利用できる。   The prestressed concrete structure of the present invention is not limited to the PC wall bodies 11, 11c, 11d, and can be used for PC pile bodies or PC column bodies.

14 構架材としての底版
16 緊張材としてのＰＣ鋼材
21 コンクリート成形部
51 鋼管
61 埋込みプレート
62 連結プレート 14 Bottom plate as construction material
16 PC steel as tension material
21 Concrete molding part
51 steel pipe
61 Embedded plate
62 Connecting plate

Claims (2)

長尺に成形されたコンクリート成形部と、
コンクリート成形部内の軸方向に配設されたプレストレストコンクリート用の緊張材と、
コンクリート成形部の軸方向途中部の外周面に露出した状態でボックス状に埋込まれた構架材接続用の鋼管と
を具備したことを特徴とするプレストレストコンクリート構造体。 A concrete molded part molded into a long shape,
A tension material for prestressed concrete arranged in the axial direction in the concrete molding part;
A prestressed concrete structure comprising: a steel pipe for connecting a structural member embedded in a box shape in a state of being exposed on an outer peripheral surface of an intermediate portion in the axial direction of a concrete molding portion. 長尺に成形されたコンクリート成形部と、
コンクリート成形部内の軸方向に配設されたプレストレストコンクリート用の緊張材と、
コンクリート成形部の軸方向途中部の一側面およびこの一側面に対し反対側に位置する他側面に露出した状態で埋込まれた複数の構架材接続用の埋込みプレートと、
緊張材を避けてコンクリート成形部内に配設され一側面および他側面の埋込みプレートの左右一端部間および他端部間を連結する連結プレートと
を具備したことを特徴とするプレストレストコンクリート構造体。 A concrete molded part molded into a long shape,
A tension material for prestressed concrete arranged in the axial direction in the concrete molding part;
A plurality of embedded plates for connecting a plurality of construction materials embedded in a state exposed on one side surface in the axial direction of the concrete molded portion and the other side surface opposite to the one side surface;
A prestressed concrete structure comprising: a connecting plate that is disposed in a concrete molding portion while avoiding a tension material and that connects between left and right end portions and the other end portions of embedded plates on one side surface and the other side surface.
JP2009003156A 2009-01-09 2009-01-09 Prestressed concrete structure Expired - Fee Related JP4954226B2 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010005056A1 (en) 2008-07-09 2010-01-14 株式会社ブリヂストン Non-pneumatic tire
CN105200980A (en) * 2015-08-27 2015-12-30 上海汤始建华管桩有限公司 Green concrete dado supporting pile and preparation method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102966092A (en) * 2012-10-25 2013-03-13 国鼎(南通)管桩有限公司 TSC (Two Subcarrier System) tube pile provided with nonprestressed reinforcement cage

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6175118A (en) * 1984-09-21 1986-04-17 Mitsui Constr Co Ltd Pc pile and method of building steel skeleton building employing said pc pile
JPH01154944A (en) * 1987-12-14 1989-06-16 Shimizu Corp Post for structure and frame structure
JPH0518007A (en) * 1991-07-05 1993-01-26 Konoike Constr Ltd Pc column having joining section of structural steel beam therewith
JPH05248036A (en) * 1992-03-06 1993-09-24 Nippon Concrete Ind Co Ltd Steel pipe concrete pillar
JPH1136327A (en) * 1997-07-23 1999-02-09 Taisei Corp Structural member joining structure for pc hollow pile
JP2000265458A (en) * 1999-03-19 2000-09-26 Penta Ocean Constr Co Ltd Floor slab connecting structure for underground structure with precast pile underground wall

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6175118A (en) * 1984-09-21 1986-04-17 Mitsui Constr Co Ltd Pc pile and method of building steel skeleton building employing said pc pile
JPH01154944A (en) * 1987-12-14 1989-06-16 Shimizu Corp Post for structure and frame structure
JPH0518007A (en) * 1991-07-05 1993-01-26 Konoike Constr Ltd Pc column having joining section of structural steel beam therewith
JPH05248036A (en) * 1992-03-06 1993-09-24 Nippon Concrete Ind Co Ltd Steel pipe concrete pillar
JPH1136327A (en) * 1997-07-23 1999-02-09 Taisei Corp Structural member joining structure for pc hollow pile
JP2000265458A (en) * 1999-03-19 2000-09-26 Penta Ocean Constr Co Ltd Floor slab connecting structure for underground structure with precast pile underground wall

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010005056A1 (en) 2008-07-09 2010-01-14 株式会社ブリヂストン Non-pneumatic tire
CN105200980A (en) * 2015-08-27 2015-12-30 上海汤始建华管桩有限公司 Green concrete dado supporting pile and preparation method thereof

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