JP6016313B1 - Concrete structure and concrete structure construction method - Google Patents

Concrete structure and concrete structure construction method Download PDF

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JP6016313B1
JP6016313B1 JP2015139415A JP2015139415A JP6016313B1 JP 6016313 B1 JP6016313 B1 JP 6016313B1 JP 2015139415 A JP2015139415 A JP 2015139415A JP 2015139415 A JP2015139415 A JP 2015139415A JP 6016313 B1 JP6016313 B1 JP 6016313B1
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reinforcing frame
concrete
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horizontal reinforcing
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JP2017020261A (en
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栄次 槇谷
栄次 槇谷
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槇谷 榮次
槇谷 榮次
新日本建設株式会社
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Abstract

【課題】構造が簡単で、組み立て、設置が容易で、打設固化されるコンクリートとの一体化に優れ、地震時の耐震性能を向上させることが可能なコンクリート構造物及びコンクリート構造物構築工法を提供することを目的とする。【解決手段】床構造から立設するコンクリート柱とコンクリート柱と直交する方向に伸びるコンクリート梁からなるコンクリート構造物において、構築されるコンクリート柱及びコンクリート梁の外周部を構成する水平部と垂直部からなる断面Ｌ字形部材を矩形状に連結して形成される水平補強枠と、フランジ部とウェブ部からなり前記水平補強枠の水平部にウェブ部の上下端部が連結固定される垂直補強枠と、 前記水平補強枠と前記垂直補強枠により形成される矩形状枠の外周に巻き付け固定される繊維シートと、繊維シートが巻き付けられた前記水平補強枠と前記垂直補強枠に囲まれた空間に充填され固化し前記水平補強枠と前記垂直補強枠と一体化するコンクリートと、からなることを特徴とする。【選択図】 図１[PROBLEMS] To provide a concrete structure and a concrete structure construction method that are simple in structure, easy to assemble and install, excellent in integration with concrete to be placed and solidified, and capable of improving seismic performance during an earthquake. The purpose is to provide. In a concrete structure composed of a concrete column erected from a floor structure and a concrete beam extending in a direction perpendicular to the concrete column, the constructed concrete column and the horizontal part and the vertical part constituting the outer periphery of the concrete beam are provided. A horizontal reinforcing frame formed by connecting rectangular L-shaped members in a rectangular shape, and a vertical reinforcing frame comprising a flange portion and a web portion, and upper and lower ends of the web portion being connected and fixed to the horizontal portion of the horizontal reinforcing frame; A fiber sheet wound around and fixed to an outer periphery of a rectangular frame formed by the horizontal reinforcing frame and the vertical reinforcing frame, and a space surrounded by the horizontal reinforcing frame and the vertical reinforcing frame wound with the fiber sheet is filled The concrete is composed of concrete that is solidified and integrated with the horizontal reinforcing frame and the vertical reinforcing frame. [Selection] Figure 1

Description

本発明は、コンクリート柱、コンクリート梁からなるコンクリート構造物及びコンクリート構造物構築工法に関する。   The present invention relates to a concrete structure including a concrete column and a concrete beam, and a concrete structure construction method.

従来、コンクリート柱やコンクリート梁からなるコンクリート構造物として、構築するコンクリート柱やコンクリート梁の外周部に鋼製の永久型枠を配置し、永久型枠で囲まれた空間に軸方向筋とフープ筋を配筋し、コンクリートを打設して、コンクリートを固化させ、永久型枠とコンクリートを一体化したコンクリート構造物が提案されている。   Conventionally, as a concrete structure consisting of concrete pillars and concrete beams, a steel permanent formwork has been placed on the outer periphery of the concrete pillars and concrete beams to be constructed, and axial and hoop lines are placed in the space surrounded by the permanent formwork. Concrete structures have been proposed in which concrete is placed, concrete is placed, the concrete is solidified, and the permanent formwork and concrete are integrated.

特開２００８−２４０３６８号公報JP 2008-240368 A 特開２０１１−２６７８６号公報JP 2011-26786 A

しかしながら、従来のコンクリート柱や既存コンクリート梁のコンクリート構造物においては、永久型枠に囲まれた空間に打設固化されるコンクリートと永久型枠との一体化が不十分であるという問題と、永久型枠の地震時の変位に対する耐久性が十分でないという問題があり、その結果、永久型枠に囲まれた空間に配筋される軸方向筋やフープ筋の量を増やさなければならないという問題を有していた。   However, in the concrete structure of conventional concrete columns and existing concrete beams, there is a problem that the concrete and the permanent formwork, which are cast and solidified in the space surrounded by the permanent formwork, are insufficiently integrated. There is a problem that the durability of the formwork against earthquake displacement is not sufficient, and as a result, the amount of axial and hoop reinforcements arranged in the space surrounded by the permanent formwork must be increased. Had.

本発明は、従来技術の持つ課題を解決するもので、構造が簡単で、組み立て、設置が容易で、打設固化されるコンクリートとの一体化に優れ、地震時の耐震性能を向上させることが可能なコンクリート構造物及びコンクリート構造物構築工法を提供することを目的とする。   The present invention solves the problems of the prior art, has a simple structure, is easy to assemble and install, is excellent in integration with concrete to be placed and solidified, and improves seismic performance during an earthquake. It is an object to provide a concrete structure and a concrete structure construction method that are possible.

本発明のコンクリート構造物は、前記課題を解決するために、床構造から立設するコンクリート柱とコンクリート柱と直交する方向に伸びるコンクリート梁からなるコンクリート構造物において、構築されるコンクリート柱及びコンクリート梁の外周部を構成する水平部と垂直部からなる断面Ｌ字形部材を矩形状に連結して形成される水平補強枠と、フランジ部とウェブ部からなる断面Ｔ字形部材を前記水平補強枠の水平部にウェブ部の上下端部が連結固定される垂直補強枠と、前記水平補強枠と前記垂直補強枠により形成される矩形状枠の外周に巻き付け固定される繊維シートと、繊維シートが巻き付けられた前記水平補強枠と前記垂直補強枠に囲まれた空間に充填され固化し前記水平補強枠と前記垂直補強枠と一体化するコンクリートと、からなることを特徴とする。
In order to solve the above problems, the concrete structure of the present invention is a concrete pillar and a concrete beam constructed in a concrete structure comprising a concrete pillar standing from a floor structure and a concrete beam extending in a direction perpendicular to the concrete pillar. the L-shaped cross-section member made of horizontal portion and a vertical portion constituting the outer peripheral portion and a horizontal reinforcing frame which is formed by connecting in a rectangular shape, a T-shaped cross-section member ing from the flange portion and web portion of the horizontal reinforcing frame A vertical reinforcing frame in which the upper and lower ends of the web portion are connected and fixed to the horizontal portion, a fiber sheet wound around and fixed to the outer periphery of a rectangular frame formed by the horizontal reinforcing frame and the vertical reinforcing frame, and the fiber sheet is wound Concrete filled and solidified into a space surrounded by the horizontal reinforcing frame and the vertical reinforcing frame, and solidified and integrated with the horizontal reinforcing frame and the vertical reinforcing frame; Characterized in that it consists of.

また、本発明のコンクリート構造物は、前記水平補強枠と前記垂直補強枠の外周に型枠部材を配置し、前記型枠部材の外周に繊維シートを巻く付けることを特徴とする。   Moreover, the concrete structure of this invention arrange | positions a formwork member on the outer periphery of the said horizontal reinforcement frame and the said vertical reinforcement frame, and wraps a fiber sheet around the outer periphery of the said formwork member, It is characterized by the above-mentioned.

また、本発明のコンクリート構造物は、前記断面Ｌ字形部材、前記断面Ｔ字形部材及び必要に応じて用いられる型枠部材を鋼又はＦＲＰで形成することを特徴とする。   The concrete structure of the present invention is characterized in that the cross-sectional L-shaped member, the cross-sectional T-shaped member, and a formwork member used as necessary are formed of steel or FRP.

また、本発明のコンクリート構造物は、前記断面Ｌ字形部材と前記断面Ｔ字形部材を連結して矩形状の水平補強枠と垂直補強枠を形成する際、コーナー部に位置する前記断面Ｌ字形部材と前記断面Ｔ字形部材の端部を４５度の角度で切除することを特徴とする。   In addition, the concrete structure of the present invention has the L-shaped cross-section member positioned at the corner when the L-shaped cross-section member and the T-shaped cross-section member are connected to form a rectangular horizontal reinforcing frame and a vertical reinforcing frame. And the end of the cross-sectional T-shaped member is cut at an angle of 45 degrees.

また、本発明のコンクリート構造物は、断面Ｔ字形部材のフランジ部の上下部を、ウェブ部の上下端が連結固定される断面Ｌ字形部材の水平部から垂直部上下端までの長さだけ切除することを特徴とする。   Further, the concrete structure of the present invention cuts the upper and lower portions of the flange portion of the T-shaped member by the length from the horizontal portion of the L-shaped member to which the upper and lower ends of the web portion are connected and fixed to the upper and lower ends of the vertical portion. It is characterized by doing.

また、本発明のコンクリート構造物は、前記水平補強枠と前記垂直補強枠で形成される矩形状の補強枠の外周は、断面Ｌ字形部材の垂直部と断面Ｔ字形部材のフランジ部で閉じた形状とすることを特徴とする。   In the concrete structure of the present invention, the outer periphery of the rectangular reinforcing frame formed by the horizontal reinforcing frame and the vertical reinforcing frame is closed by the vertical portion of the L-shaped member and the flange portion of the T-shaped member. It is characterized by a shape.

また、本発明のコンクリート構造物は、前記水平補強枠と前記垂直補強枠で囲まれた空間に軸方向筋、必要に応じてフープ筋を配筋することを特徴とする。   Moreover, the concrete structure of the present invention is characterized in that axial streaks and hoop bars are arranged in a space surrounded by the horizontal reinforcing frame and the vertical reinforcing frame, if necessary.

また、本発明のコンクリート構造物構築工法は、構築するコンクリート柱及びコンクリート梁の外周部を水平部と垂直部で構成される断面Ｌ字形部材を矩形状に連結して形成される水平補強枠と、ウェブ部とフランジ部で構成される断面Ｔ字形部材のウェブ部の上下端を前記水平補強枠の水平部に連結固定し、外周が水平補強枠の垂直部と垂直補強枠のフランジ部で閉じられた矩形状の補強枠で形成する工程と、外周が閉じられた前記水平補強枠と前記垂直補強枠の外周に繊維シートを巻き付け配置する工程と、繊維シートが巻き付けられた前記水平補強枠と前記垂直補強枠で囲まれた空間に軸方向筋、必要に応じてフープ筋を配筋する工程と、前記水平補強枠と前記垂直補強枠で囲まれた空間にコンクリートを充填し、コンクリートを固化させ繊維シートが巻き付けられた前記水平補強枠と前記垂直補強枠とを一体化する工程と、を少なくとも備えることを特徴とする。   Further, the concrete structure construction method of the present invention includes a horizontal reinforcing frame formed by connecting an L-shaped cross section composed of a horizontal part and a vertical part to the outer periphery of the concrete pillar and concrete beam to be constructed in a rectangular shape, and The upper and lower ends of the web portion of the T-shaped cross section composed of the web portion and the flange portion are connected and fixed to the horizontal portion of the horizontal reinforcing frame, and the outer periphery is closed by the vertical portion of the horizontal reinforcing frame and the flange portion of the vertical reinforcing frame. A step of forming the rectangular reinforcing frame, a step of winding and arranging a fiber sheet around the outer periphery of the horizontal reinforcing frame and the vertical reinforcing frame, and a horizontal reinforcing frame around which the fiber sheet is wound. Arranging axial streaks in the space surrounded by the vertical reinforcing frame, hoop bars as needed, filling the space surrounded by the horizontal reinforcing frame and the vertical reinforcing frame with concrete, and solidifying the concrete A step of integrating said fiber sheet is wound horizontal reinforcing frame and the vertical reinforcing frame allowed, characterized in that it comprises at least.

床構造から立設するコンクリート柱とコンクリート柱と直交する方向に伸びるコンクリート梁からなるコンクリート構造物において、構築されるコンクリート柱及びコンクリート梁の外周部を構成する水平部と垂直部からなる断面Ｌ字形部材を矩形状に連結して形成される水平補強枠と、フランジ部とウェブ部からなる断面Ｔ字形部材を前記水平補強枠の水平部にウェブ部の上下端部が連結固定される垂直補強枠と、前記水平補強枠と前記垂直補強枠により形成される矩形状枠の外周に巻き付け固定される繊維シートと、繊維シートが巻き付けられた前記水平補強枠と前記垂直補強枠に囲まれた空間に充填され固化し前記水平補強枠と前記垂直補強枠と一体化するコンクリートと、からなることで、構造が簡単で組み立てが容易で、コンクリートと一体化した水平補強枠の水平部と垂直補強枠のウェブ部が補強リブとして機能し、補強筋の量を少なくして耐震性能を向上させ、型枠部材の外周に巻き付けられる繊維シートが地震時のエネルギーを減衰することが可能となる。
水平補強枠と垂直補強枠の外周に型枠部材を配置し、型枠部材の外周に繊維シートを巻く付けることで、より強固な補強構造とすることが可能となる。
断面Ｌ字形部材、断面Ｔ字形部材及び必要に応じて用いられる型枠部材を鋼又はＦＲＰで形成することで、鋼製でもＦＲＰ製でも高強度の補強構造とすることが可能となる。
断面Ｌ字形部材と断面Ｔ字形部材を連結して矩形状の水平補強枠と垂直補強枠を形成する際、コーナー部に位置する断面Ｌ字形部材と断面Ｔ字形部材の端部を４５度の角度で切除することで、矩形状に連結される補強枠のコーナー部が隙間なく連結することが可能となる。
断面Ｔ字形部材のフランジ部の上下部を、ウェブ部の上下端が連結固定される断面Ｌ字形部材の水平部から垂直部上下端までの長さだけ切除することで、水平補強枠の垂直部と垂直補強枠のフランジ部が面一となり繊維シート又は必要に応じて配置される型枠部材の配置が容易にすることが可能となる。
水平補強枠と垂直補強枠で形成される矩形状の補強枠の外周は、断面Ｌ字形部材の垂直部と断面Ｔ字形部材のフランジ部で閉じた形状とすることで、型枠部材を配置しなくても、水平補強枠と垂直補強枠で囲まれた空間に打設されるコンクリートの漏出を防止することが可能となる。
水平補強枠と前記垂直補強枠で囲まれた空間に軸方向筋、必要に応じてフープ筋を配筋することで、高強度のコンクリート構造物とすることが可能となる。
構築するコンクリート柱及びコンクリート梁の外周部を水平部と垂直部で構成される断面Ｌ字形部材を矩形状に連結して形成される水平補強枠と、ウェブ部とフランジ部で構成される断面Ｔ字形部材のウェブ部の上下端を前記水平補強枠の水平部に連結固定し、外周が水平補強枠の垂直部と垂直補強枠のフランジ部で閉じられた矩形状の補強枠で形成する工程と、外周が閉じられた前記水平補強枠と前記垂直補強枠の外周に繊維シートを巻き付け配置する工程と、繊維シートが巻き付けられた前記水平補強枠と前記垂直補強枠で囲まれた空間に軸方向筋、必要に応じてフープ筋を配筋する工程と、前記水平補強枠と前記垂直補強枠で囲まれた空間にコンクリートを充填し、コンクリートを固化させ繊維シートが巻き付けられた前記水平補強枠と前記垂直補強枠とを一体化する工程と、を少なくとも備えることで、構造が簡単で組み立て作業が容易で、コンクリートと一体化した水平補強枠の水平部と垂直補強枠のウェブ部が補強リブとして機能し、補強筋の配筋量を少なくしても耐震性能を向上させることが可能で、型枠部材の外周に巻き付けられる繊維シートが地震時のエネルギーを減衰することが可能となり、低コストのコンクリート構造物構築工法とすることが可能となる。
In a concrete structure consisting of a concrete pillar standing from the floor structure and a concrete beam extending in a direction orthogonal to the concrete pillar, the concrete pillar to be constructed and a cross section L-shaped consisting of a horizontal part and a vertical part constituting the outer periphery of the concrete beam a horizontal reinforcing frame formed by connecting a member in a rectangular shape, the vertical upper and lower ends of the web portion is fixedly connected to a T-shaped member ing from the flange portion and web portion to the horizontal portion of the horizontal reinforcing frame reinforcement A frame, a fiber sheet wound around and fixed to an outer periphery of a rectangular frame formed by the horizontal reinforcing frame and the vertical reinforcing frame, and a space surrounded by the horizontal reinforcing frame and the vertical reinforcing frame around which the fiber sheet is wound The concrete is filled and solidified into the horizontal reinforcing frame and the concrete integrated with the vertical reinforcing frame, so that the structure is simple and easy to assemble. The horizontal portion of the horizontal reinforcing frame integrated with the web and the web portion of the vertical reinforcing frame function as reinforcing ribs, reducing the amount of reinforcing bars and improving the earthquake resistance, and the fiber sheet wound around the outer periphery of the mold member It becomes possible to attenuate energy during an earthquake.
A stronger reinforcing structure can be obtained by disposing the formwork members on the outer periphery of the horizontal reinforcing frame and the vertical reinforcing frame and winding the fiber sheet around the outer periphery of the formwork member.
By forming the cross-sectional L-shaped member, the cross-sectional T-shaped member and the formwork member used as necessary with steel or FRP, it becomes possible to provide a high-strength reinforcing structure made of steel or FRP.
When the L-shaped cross-section member and the T-shaped cross-section member are connected to form a rectangular horizontal reinforcing frame and a vertical reinforcing frame, the end of the cross-sectional L-shaped member and the cross-sectional T-shaped member positioned at the corner are at an angle of 45 degrees. By cutting in, it becomes possible to connect the corner portions of the reinforcing frames connected in a rectangular shape without gaps.
By cutting off the upper and lower portions of the flange portion of the T-shaped member for the length from the horizontal portion of the L-shaped member to which the upper and lower ends of the web portion are connected and fixed, to the vertical upper and lower ends, And the flange part of a vertical reinforcement frame becomes flush | level, and it becomes possible to arrange | position a fiber sheet or the formwork member arrange | positioned as needed easily.
The outer periphery of the rectangular reinforcing frame formed by the horizontal reinforcing frame and the vertical reinforcing frame has a shape closed by the vertical portion of the L-shaped member and the flange portion of the T-shaped member, thereby arranging the mold member. Even without this, it is possible to prevent leakage of concrete placed in a space surrounded by the horizontal reinforcing frame and the vertical reinforcing frame.
It is possible to obtain a high-strength concrete structure by arranging axial streaks and, if necessary, hoop bars in a space surrounded by a horizontal reinforcing frame and the vertical reinforcing frame.
A horizontal reinforcing frame formed by connecting an L-shaped cross section composed of a horizontal portion and a vertical portion at the outer periphery of the concrete column and concrete beam to be constructed, and a cross section T composed of a web portion and a flange portion. Connecting and fixing the upper and lower ends of the web portion of the letter-shaped member to the horizontal portion of the horizontal reinforcing frame, and forming a rectangular reinforcing frame whose outer periphery is closed by a vertical portion of the horizontal reinforcing frame and a flange portion of the vertical reinforcing frame; A step of winding and arranging a fiber sheet around the outer periphery of the horizontal reinforcing frame and the vertical reinforcing frame whose outer periphery is closed, and an axial direction in a space surrounded by the horizontal reinforcing frame and the vertical reinforcing frame around which the fiber sheet is wound A step of arranging a streak, and a hoop as necessary, and the horizontal reinforcing frame in which concrete is filled in a space surrounded by the horizontal reinforcing frame and the vertical reinforcing frame, and the concrete is solidified and wound with a fiber sheet. And a step of integrating the vertical reinforcing frame with at least the structure, the structure is simple and the assembly work is easy, and the horizontal portion of the horizontal reinforcing frame integrated with the concrete and the web portion of the vertical reinforcing frame serve as reinforcing ribs. It is possible to improve the seismic performance even if the amount of reinforcement reinforcement is reduced, and the fiber sheet wrapped around the outer periphery of the formwork member can attenuate the energy in the event of a low cost. It becomes possible to adopt a concrete structure construction method.

本発明の実施形態を示す図である。It is a figure which shows embodiment of this invention. 本発明の実施形態を示す図である。It is a figure which shows embodiment of this invention. 本発明の実施形態を示す図である。It is a figure which shows embodiment of this invention. 本発明の実施形態を示す図である。It is a figure which shows embodiment of this invention. 本発明の実施形態を示す図である。It is a figure which shows embodiment of this invention. （ａ）（ｂ）（ｃ）本発明の実施形態を示す図である。(A) (b) (c) It is a figure which shows embodiment of this invention.

本発明の実施の形態を図により説明する。図１は、コンクリート柱及びコンクリート梁からなるコンクリート構造物の一実施形態を示す図である。   Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a diagram illustrating an embodiment of a concrete structure including a concrete column and a concrete beam.

コンクリート構造物は、床構造１からコンクリート柱２が鉛直に立設し、コンクリート柱２にコンクリート梁３が水平に交差する。コンクリート柱２はコンクリート梁３の上部にも鉛直方向に立設する。   In the concrete structure, a concrete pillar 2 stands vertically from the floor structure 1, and a concrete beam 3 intersects the concrete pillar 2 horizontally. The concrete column 2 is also erected in the vertical direction above the concrete beam 3.

床構造１から鉛直方向に伸びるコンクリート柱２及びコンクリート柱２と直交する方向に伸びるコンクリート梁３の構造を、図２（図１Ａ−Ａ線水平切断面図）、図３（図１Ｂ−Ｂ線水平切断面図）、図４、図５、図６（ａ）（ｂ）（ｃ）により説明する。   The structure of the concrete column 2 extending in the vertical direction from the floor structure 1 and the concrete beam 3 extending in the direction perpendicular to the concrete column 2 is shown in FIG. 2 (horizontal cut along line AA in FIG. 1) and FIG. Horizontal cut surface view), FIG. 4, FIG. 5, FIG. 6 (a) (b) (c) will be described.

床構造１から鉛直方向に立設するコンクリート柱２は、水平部５ａと垂直部５ｂからなる断面Ｌ字形部材５の水平部５ａが床構造１に接触するよう配置し、複数の断面Ｌ字形部材５を連結して矩形状の水平補強枠６を形成する。断面Ｌ字形部材５を矩形状に連結する際、コーナー部に位置する断面Ｌ字形部材５の端部を４５度の角度で切除して連結する。水平補強枠６の床構造１と接する水平部５ａと床構造１をアンカーボルト７で固定する。断面Ｌ字形部材５で形成された水平補強枠６の水平部５ａには、垂直補強枠８を連結固定するためのＬ字形の連結部材９が連結部材固定ピン１７で固定される。連結部材９には、垂直補強枠固定ピン挿通孔９a形成される。   The concrete pillar 2 erected in the vertical direction from the floor structure 1 is arranged so that the horizontal portion 5a of the cross-sectional L-shaped member 5 composed of the horizontal portion 5a and the vertical portion 5b contacts the floor structure 1, and a plurality of cross-sectional L-shaped members 5 are connected to form a rectangular horizontal reinforcing frame 6. When connecting the L-shaped member 5 in a rectangular shape, the end portion of the L-shaped member 5 located at the corner is cut off at an angle of 45 degrees and connected. The horizontal portion 5 a of the horizontal reinforcing frame 6 that is in contact with the floor structure 1 and the floor structure 1 are fixed with anchor bolts 7. An L-shaped connecting member 9 for connecting and fixing the vertical reinforcing frame 8 is fixed to the horizontal portion 5 a of the horizontal reinforcing frame 6 formed by the L-shaped member 5 with a connecting member fixing pin 17. The connecting member 9 is formed with a vertical reinforcing frame fixing pin insertion hole 9a.

水平補強枠６の水平部５ａに連結固定される垂直補強枠８は、断面Ｔ字形部材１０により形成される。断面Ｔ字形部材１０は、ウェブ部１０ａとウェブ部１０ａと直交するフランジ部１０ｂにより構成される。フランジ部１０ｂの上下部は、ウェブ部１０ａの上下端が固定される断面Ｌ字形部材５の水平部５ａから垂直部５ｂ上下端までの長さだけ切除する。ウェブ部１０ａの一部を切除することにより、断面Ｔ字形部材１０のウェブ部１０ａを、断面Ｌ字形部材５の水平部５ａに連結部材９と垂直補強枠固定ピン１１で連結固定すると、断面Ｌ字形部材５の垂直部５ｂと断面Ｔ字形部材１０のフランジ部１０ｂの表面が面一になる。   The vertical reinforcing frame 8 connected and fixed to the horizontal portion 5 a of the horizontal reinforcing frame 6 is formed by a T-shaped member 10 in cross section. The cross-sectional T-shaped member 10 includes a web portion 10a and a flange portion 10b orthogonal to the web portion 10a. The upper and lower portions of the flange portion 10b are cut by the length from the horizontal portion 5a of the L-shaped member 5 to which the upper and lower ends of the web portion 10a are fixed to the upper and lower ends of the vertical portion 5b. When the web portion 10a of the cross-section T-shaped member 10 is connected and fixed to the horizontal portion 5a of the cross-section L-shaped member 5 by the connecting member 9 and the vertical reinforcing frame fixing pin 11 by cutting off a part of the web portion 10a, the cross-section L The surfaces of the vertical part 5b of the letter-shaped member 5 and the flange part 10b of the T-shaped member 10 in cross section are flush.

複数の断面Ｌ字形部材５を矩形状に連結して構成される水平補強枠６の一辺をなす水平部５ａに複数の断面Ｔ字形部材１０を連結固定して垂直補強枠８を形成する場合、図６（ａ）に示すように、隣接するフランジ部１０ｂの端部が接触するように配置する。コーナー部に位置する断面Ｔ字形部材１０のフランジ部１０ｂの端部を４５度の角度で切除して連結すると、矩形状に連結された水平補強枠６の上に垂直補強枠８のフランジ部１０ｂが矩形状に配置される。隣接するフランジ部１０ｂの端部が互いに密着するように配置されるので、水平補強枠６と垂直補強枠８で形成される矩形状の外周は、垂直部５ｂとフランジ部１０ｂにより閉じられた滑らかな外周面となる。   When forming a vertical reinforcing frame 8 by connecting and fixing a plurality of cross-sectional T-shaped members 10 to a horizontal portion 5a forming one side of a horizontal reinforcing frame 6 configured by connecting a plurality of L-shaped members 5 in a rectangular shape, As shown to Fig.6 (a), it arrange | positions so that the edge part of the adjacent flange part 10b may contact. When the end portion of the flange portion 10b of the T-shaped member 10 located at the corner portion is cut and connected at an angle of 45 degrees, the flange portion 10b of the vertical reinforcement frame 8 is placed on the horizontal reinforcement frame 6 connected in a rectangular shape. Are arranged in a rectangular shape. Since the end portions of the adjacent flange portions 10b are arranged so as to be in close contact with each other, the rectangular outer periphery formed by the horizontal reinforcing frame 6 and the vertical reinforcing frame 8 is smoothly closed by the vertical portion 5b and the flange portion 10b. The outer peripheral surface.

図３に示すように、上部に位置する水平補強枠８は、１対の断面Ｌ字形部材５の水平部５ａ同士を接触させ、上下の水平部５ａを水平補強枠連結ピン１２で固定する。床構造１から立設するコンクリート柱２の外周部は、水平補強枠６と垂直補強枠８を矩形状に連結して形成される。   As shown in FIG. 3, the horizontal reinforcing frame 8 located at the upper portion makes the horizontal portions 5 a of the pair of cross-sectional L-shaped members 5 come into contact with each other, and the upper and lower horizontal portions 5 a are fixed by the horizontal reinforcing frame connecting pins 12. The outer peripheral part of the concrete pillar 2 standing from the floor structure 1 is formed by connecting a horizontal reinforcing frame 6 and a vertical reinforcing frame 8 in a rectangular shape.

床構造１から鉛直に立設するコンクリート柱２の外周部である水平補強枠６と垂直補強枠８の連結配置が終了すると、水平補強枠６と垂直補強枠８の外周に繊維シート１４を巻きつける。必要に応じて、矩形状に連結した水平補強枠６と垂直補強枠８の外周に型枠部材１３を配置しても良い。型枠部材１３を配置する場合、型枠部材１３の外周に繊維シート１４を巻きつける。水平補強枠６の垂直部５ａと垂直補強枠８のフランジ部１０ｂが面一になっているので型枠部材１３の配置が容易になる。その後、既存コンクリート柱２と水平補強枠６、垂直補強枠８との間には、軸方向筋１５と必要に応じてフープ筋１６を配筋する。   When the connection between the horizontal reinforcing frame 6 and the vertical reinforcing frame 8, which is the outer peripheral portion of the concrete pillar 2 erected vertically from the floor structure 1, is finished, the fiber sheet 14 is wound around the outer periphery of the horizontal reinforcing frame 6 and the vertical reinforcing frame 8. Put on. If necessary, the mold member 13 may be disposed on the outer periphery of the horizontal reinforcing frame 6 and the vertical reinforcing frame 8 connected in a rectangular shape. When arranging the formwork member 13, the fiber sheet 14 is wound around the outer periphery of the formwork member 13. Since the vertical portion 5a of the horizontal reinforcing frame 6 and the flange portion 10b of the vertical reinforcing frame 8 are flush with each other, the placement of the mold member 13 is facilitated. Then, between the existing concrete pillar 2 and the horizontal reinforcement frame 6 and the vertical reinforcement frame 8, the axial reinforcement 15 and the hoop reinforcement 16 are arranged as needed.

軸方向筋１５と必要に応じて配置されるフープ筋１６が配筋された空間に未硬化のセメントモルタルを打設する。セメントモルタルに金属繊維、有機繊維を混合したものを用いると強度の大きいコンクリートとすることが可能となる。セメントモルタルが固化することにより、水平補強枠、垂直補強枠８、型枠部材１３、繊維シート１４が固化したコンクリートにより一体化してコンクリート柱２が構築される。   Uncured cement mortar is placed in the space where the axial streaks 15 and the hoop bars 16 arranged as necessary are arranged. When cement mortar mixed with metal fiber and organic fiber is used, it becomes possible to make concrete with high strength. When the cement mortar is solidified, the concrete column 2 is constructed by integrating the horizontal reinforcing frame, the vertical reinforcing frame 8, the mold member 13, and the fiber sheet 14 with the solidified concrete.

セメントモルタルが打設される側の水平補強枠６と垂直補強枠８には、断面Ｌ字形部材５の水平部５ａと断面Ｔ字形部材１０の垂直なウェブ部１０ａが水平方向、垂直方向の補強リブとして機能して耐震性能を向上させると共に、水平補強枠６と垂直補強枠８の外周に巻き付けられた繊維シート１４も地震時のエネルギーを減衰する機能を有する。コンクリート梁３の上から立設するコンクリート柱２も同様である。   In the horizontal reinforcing frame 6 and the vertical reinforcing frame 8 on the side where the cement mortar is placed, the horizontal portion 5a of the L-shaped member 5 and the vertical web portion 10a of the T-shaped member 10 are reinforced in the horizontal and vertical directions. The fiber sheet 14 wound around the outer periphery of the horizontal reinforcing frame 6 and the vertical reinforcing frame 8 also has a function of attenuating energy at the time of an earthquake while functioning as a rib to improve the earthquake resistance. The same applies to the concrete pillar 2 erected from above the concrete beam 3.

断面Ｌ字形部材５、断面Ｔ字形部材１０、型枠部材１３は、鋼又は高強度なＲＲＰで形成しても良い。構造が簡単な規格部材で水平補強枠６と垂直補強枠８が形成することが可能であるため、組み立て作業が容易で低コストの既存コンクリート構造物補強構造とすることが可能となる。   The cross-sectional L-shaped member 5, the cross-sectional T-shaped member 10, and the formwork member 13 may be formed of steel or high-strength RRP. Since the horizontal reinforcing frame 6 and the vertical reinforcing frame 8 can be formed with a standard member having a simple structure, it is possible to provide an existing concrete structure reinforcing structure that is easy to assemble and low in cost.

図３は、コンクリート柱２とコンクリート柱２に直交するコンクリート梁３の構造を示す図である。コンクリート柱２と直交する方向に伸びるコンクリート梁３の外周部に沿って水平補強枠６と垂直補強枠８を矩形状に連結する。コンクリート柱２の外周部を形成する水平補強枠６と垂直補強枠８が鉛直方向に連接されるのに対して結固定されるのに対して、コンクリート梁３の外周部を形成する水平補強枠６と垂直補強枠８は、水平方向に連接される。
アンカーボルト７で固定する。 FIG. 3 is a view showing the structure of the concrete pillar 2 and the concrete beam 3 orthogonal to the concrete pillar 2. A horizontal reinforcing frame 6 and a vertical reinforcing frame 8 are connected in a rectangular shape along the outer periphery of a concrete beam 3 extending in a direction orthogonal to the concrete pillar 2. While the horizontal reinforcing frame 6 and the vertical reinforcing frame 8 forming the outer peripheral portion of the concrete column 2 are connected to each other while being connected in the vertical direction, the horizontal reinforcing frame forming the outer peripheral portion of the concrete beam 3 is fixed. 6 and the vertical reinforcement frame 8 are connected in the horizontal direction.
Fix with the anchor bolt 7.

矩形状に連結した水平補強枠６と垂直補強枠８の外周に繊維シート１４を巻きつける。必要に応じて、矩形状に連結した水平補強枠６と垂直補強枠８の外周に型枠部材１３を配置しても良い。型枠部材１３を配置する場合、型枠部材１３の外周に繊維シート１４を巻きつける。   The fiber sheet 14 is wound around the outer periphery of the horizontal reinforcing frame 6 and the vertical reinforcing frame 8 connected in a rectangular shape. If necessary, the mold member 13 may be disposed on the outer periphery of the horizontal reinforcing frame 6 and the vertical reinforcing frame 8 connected in a rectangular shape. When arranging the formwork member 13, the fiber sheet 14 is wound around the outer periphery of the formwork member 13.

コンクリート梁３の外周部を形成する水平補強枠６、垂直補強枠８との間には、軸方向筋１５と必要に応じて水平筋１６を配筋する。   Between the horizontal reinforcing frame 6 and the vertical reinforcing frame 8 forming the outer peripheral portion of the concrete beam 3, an axial streak 15 and a horizontal streak 16 are arranged as necessary.

軸方向筋１５と必要に応じて配置される水平筋１６が配筋された空間に未硬化のセメントモルタルを打設する。セメントモルタルに金属繊維、有機繊維を混合したものを用いると強度の大きいコンクリートとすることが可能となる。セメントモルタルが固化することにより、水平補強枠、垂直補強枠８、型枠部材１３、繊維シート１４が固化したコンクリートにより一体化してコンクリート梁３の耐震性能が大幅に向上する。   Uncured cement mortar is placed in the space where the axial streaks 15 and the horizontal streaks 16 arranged as necessary are arranged. When cement mortar mixed with metal fiber and organic fiber is used, it becomes possible to make concrete with high strength. By solidifying the cement mortar, the horizontal reinforcing frame, the vertical reinforcing frame 8, the mold member 13, and the fiber sheet 14 are integrated with the solidified concrete, and the seismic performance of the concrete beam 3 is greatly improved.

断面Ｌ字形部材５、断面Ｔ字形部材１０、型枠部材１３は、鋼又は高強度なＲＲＰで形成しても良い。構造が簡単な規格部材で水平補強枠６と垂直補強枠８が形成することが可能であるため、組み立て作業が容易で低コストの既存コンクリート構造物補強構造とすることが可能となる。   The cross-sectional L-shaped member 5, the cross-sectional T-shaped member 10, and the formwork member 13 may be formed of steel or high-strength RRP. Since the horizontal reinforcing frame 6 and the vertical reinforcing frame 8 can be formed with a standard member having a simple structure, it is possible to provide an existing concrete structure reinforcing structure that is easy to assemble and low in cost.

以上のように、本発明のコンクリートコンクリート構造物及びコンクリート構造物構築工法によれば、構造が簡単で組み立てが容易で、コンクリートと一体化した水平補強枠の水平部と垂直補強枠のウェブ部が補強リブとして機能し、補強筋の量を少なくして耐震性能を向上させ、外周に巻き付けられる繊維シートが地震時のエネルギーを減衰することが可能となる。   As described above, according to the concrete concrete structure and the concrete structure construction method of the present invention, the structure is simple and easy to assemble, and the horizontal portion of the horizontal reinforcing frame integrated with the concrete and the web portion of the vertical reinforcing frame are provided. It functions as a reinforcing rib, reduces the amount of reinforcing bars, improves the earthquake resistance, and the fiber sheet wound around the outer periphery can attenuate the energy at the time of earthquake.

１：床構造、２：コンクリート柱、３：コンクリート梁、５：断面Ｌ字形部材、５ａ：水平部、５ｂ：垂直部、６：水平補強枠、７：アンカーボルト、８：垂直補強枠、９：連結部材、９a：垂直補強枠固定ピン挿通孔、１０：断面Ｔ字形部材、１０ａ：ウェブ部、１０ｂ：フランジ部、１１：垂直補強枠固定ピン固定ピン、１２：水平補強枠連結ピン、１３：型枠部材、１４：繊維シート、１５：軸方向筋、１６：フープ筋、１７：連結部材固定ピン   1: floor structure, 2: concrete column, 3: concrete beam, 5: L-shaped member in cross section, 5a: horizontal part, 5b: vertical part, 6: horizontal reinforcing frame, 7: anchor bolt, 8: vertical reinforcing frame, 9 : Connecting member, 9a: vertical reinforcing frame fixing pin insertion hole, 10: cross-section T-shaped member, 10a: web portion, 10b: flange portion, 11: vertical reinforcing frame fixing pin fixing pin, 12: horizontal reinforcing frame connecting pin, 13 : Formwork member, 14: Fiber sheet, 15: Axial streak, 16: Hoop streak, 17: Connecting member fixing pin

Claims (8)

床構造から立設するコンクリート柱とコンクリート柱と直交する方向に伸びるコンクリート梁からなるコンクリート構造物において、
構築されるコンクリート柱及びコンクリート梁の外周部を構成する水平部と垂直部からなる断面Ｌ字形部材を矩形状に連結して形成される水平補強枠と、フランジ部とウェブ部からなる断面Ｔ字形部材を前記水平補強枠の水平部にウェブ部の上下端部が連結固定される垂直補強枠と、
前記水平補強枠と前記垂直補強枠により形成される矩形状枠の外周に巻き付け固定される繊維シートと、
繊維シートが巻き付けられた前記水平補強枠と前記垂直補強枠に囲まれた空間に充填され固化し前記水平補強枠と前記垂直補強枠と一体化するコンクリートと、
からなることを特徴とするコンクリート構造物。 In concrete structures consisting of concrete columns erected from the floor structure and concrete beams extending in the direction perpendicular to the concrete columns,
A horizontal reinforcing frame formed of L-shaped cross section members consisting of horizontal portion and a vertical portion constituting the outer peripheral portion of the concrete column and the concrete beam is constructed by connecting rectangular, cross-section T ing from the flange portion and a web portion a vertical reinforcing frame upper and lower ends of the web portion is fixedly connected to shaped member to the horizontal portion of the horizontal reinforcing frame,
A fiber sheet that is wound around and fixed to the outer periphery of a rectangular frame formed by the horizontal reinforcing frame and the vertical reinforcing frame;
Concrete filled and solidified in a space surrounded by the horizontal reinforcing frame and the vertical reinforcing frame wound with a fiber sheet, and integrated with the horizontal reinforcing frame and the vertical reinforcing frame;
A concrete structure characterized by comprising 前記水平補強枠と前記垂直補強枠の外周に型枠部材を配置し、前記型枠部材の外周に繊維シートを巻く付けることを特徴とする請求項１に記載のコンクリート構造物。   The concrete structure according to claim 1, wherein a mold member is disposed on the outer periphery of the horizontal reinforcing frame and the vertical reinforcing frame, and a fiber sheet is wound around the outer periphery of the mold member. 前記断面Ｌ字形部材、前記断面Ｔ字形部材及び必要に応じて用いられる型枠部材を鋼又はＦＲＰで形成することを特徴とする請求項２に記載のコンクリート構造物。   The concrete structure according to claim 2, wherein the cross-sectional L-shaped member, the cross-sectional T-shaped member, and a formwork member used as necessary are formed of steel or FRP. 前記断面Ｌ字形部材と前記断面Ｔ字形部材を連結して矩形状の水平補強枠と垂直補強枠を形成する際、コーナー部に位置する前記断面Ｌ字形部材と前記断面Ｔ字形部材の端部を４５度の角度で切除することを特徴とする請求項１ないし３のいずれか１項に記載のコンクリート構造物。   When the L-shaped cross-section member and the T-shaped cross-section member are connected to form a rectangular horizontal reinforcing frame and a vertical reinforcing frame, the cross-sectional L-shaped member positioned at the corner and the end of the T-shaped cross-section member are The concrete structure according to any one of claims 1 to 3, wherein the concrete structure is cut at an angle of 45 degrees. 断面Ｔ字形部材のフランジ部の上下部を、ウェブ部の上下端が連結固定される断面Ｌ字形部材の水平部から垂直部上下端までの長さだけ切除することを特徴とする請求項１ないし４のいずれか１項に記載のコンクリート構造物。   The upper and lower portions of the flange portion of the cross-section T-shaped member are cut by a length from the horizontal portion to the upper and lower ends of the vertical portion of the cross-section L-shaped member to which the upper and lower ends of the web portion are connected and fixed. 4. The concrete structure according to any one of 4 above. 前記水平補強枠と前記垂直補強枠で形成される矩形状の補強枠の外周は、断面Ｌ字形部材の垂直部と断面Ｔ字形部材のフランジ部で閉じた形状とすることを特徴とする請求項１ないし５のいずれか１項に記載のコンクリート構造物。   The outer periphery of the rectangular reinforcing frame formed by the horizontal reinforcing frame and the vertical reinforcing frame has a shape closed by a vertical portion of the L-shaped member and a flange portion of the T-shaped member. The concrete structure according to any one of 1 to 5. 前記水平補強枠と前記垂直補強枠で囲まれた空間に軸方向筋、必要に応じてフープ筋を配筋することを特徴とする請求項１ないし６のいずれか１項に記載のコンクリート構造物。   The concrete structure according to any one of claims 1 to 6, wherein axial streaks and hoop bars are arranged as necessary in a space surrounded by the horizontal reinforcing frame and the vertical reinforcing frame. . 構築するコンクリート柱及びコンクリート梁の外周部を水平部と垂直部で構成される断面Ｌ字形部材を矩形状に連結して形成される水平補強枠と、ウェブ部とフランジ部で構成される断面Ｔ字形部材のウェブ部の上下端を前記水平補強枠の水平部に連結固定し、外周が水平補強枠の垂直部と垂直補強枠のフランジ部で閉じられた矩形状の補強枠で形成する工程と、
外周が閉じられた前記水平補強枠と前記垂直補強枠の外周に繊維シートを巻き付け配置する工程と、
繊維シートが巻き付けられた前記水平補強枠と前記垂直補強枠で囲まれた空間に軸方向筋、必要に応じてフープ筋を配筋する工程と、
前記水平補強枠と前記垂直補強枠で囲まれた空間にコンクリートを充填し、コンクリートを固化させ繊維シートが巻き付けられた前記水平補強枠と前記垂直補強枠とを一体化する工程と、
を少なくとも備えることを特徴とするコンクリート構造物構築工法。 A horizontal reinforcing frame formed by connecting an L-shaped cross section composed of a horizontal portion and a vertical portion at the outer periphery of the concrete column and concrete beam to be constructed, and a cross section T composed of a web portion and a flange portion. Connecting and fixing the upper and lower ends of the web portion of the letter-shaped member to the horizontal portion of the horizontal reinforcing frame, and forming a rectangular reinforcing frame whose outer periphery is closed by a vertical portion of the horizontal reinforcing frame and a flange portion of the vertical reinforcing frame; ,
A step of winding and arranging a fiber sheet around the outer periphery of the horizontal reinforcing frame and the vertical reinforcing frame whose outer periphery is closed;
A step of arranging an axial streak in the space surrounded by the horizontal reinforcing frame and the vertical reinforcing frame around which a fiber sheet is wound, and a hoop line as necessary;
Filling the space surrounded by the horizontal reinforcing frame and the vertical reinforcing frame with concrete, solidifying the concrete, and integrating the horizontal reinforcing frame and the vertical reinforcing frame wound with a fiber sheet;
A concrete structure construction method characterized by comprising at least
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008240368A (en) * 2007-03-27 2008-10-09 Eiji Makitani Reinforced concrete column reinforcing structure
JP2011026786A (en) * 2009-07-22 2011-02-10 Eiji Makitani Structure for reinforcing building
JP2013181332A (en) * 2012-03-01 2013-09-12 Eiji Makitani Reinforcing method for building structure
JP2014136924A (en) * 2013-01-17 2014-07-28 Sanyo-Home Co Ltd Reinforcement structure of concrete column with wall
JP2015004252A (en) * 2013-06-24 2015-01-08 株式会社フジモト Seismic strengthening member for concrete structure and seismic strengthening method for concrete structure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008240368A (en) * 2007-03-27 2008-10-09 Eiji Makitani Reinforced concrete column reinforcing structure
JP2011026786A (en) * 2009-07-22 2011-02-10 Eiji Makitani Structure for reinforcing building
JP2013181332A (en) * 2012-03-01 2013-09-12 Eiji Makitani Reinforcing method for building structure
JP2014136924A (en) * 2013-01-17 2014-07-28 Sanyo-Home Co Ltd Reinforcement structure of concrete column with wall
JP2015004252A (en) * 2013-06-24 2015-01-08 株式会社フジモト Seismic strengthening member for concrete structure and seismic strengthening method for concrete structure

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