A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
BEAM CONSTRUCTION METHOD, BEAM, AND HALF-PRECAST MEMBER
To provide a beam construction method for constructing a large-section reinforced concrete beam without using timbering, and to provide a beam and a half-precast member.SOLUTION: A beam 20 comprises multiple half precast members 21, 22, 23 that form the lowest part. Each of the half precast members 21 to 23 is divided in a width direction D2 of the beam 20, and has a block portion made of concrete having a length in an axial direction D1 of the beam 20. The beam 20 comprises a plurality of tie bars 25 and a plurality of beam side face axial bars 26. The tie bars 25 are arranged near upper surfaces of the half precast members 21 to 23 so as to extend in the width direction D2 of the beam 20 for a length spanning all of the half precast members 21 to 23 that constitute the beam 20. The beam side face axial bars 26 are arranged vertically spaced apart near the side face of the beam 20. The beam 20 has an upper portion, which is a cast-in-place concrete portion 29, which is an area having a height H2 that is equal to or more than a half of a height H1 of the beam 20.SELECTED DRAWING: Figure 1
【課題】支保工を用いずに大断面の鉄筋コンクリート造の梁を施工するための梁の施工方法、梁及びハーフプレキャスト部材を提供する。【解決手段】梁２０は、最下部を構成する複数のハーフＰＣａ部材２１，２２，２３を備える。各ハーフＰＣａ部材２１～２３は、梁２０の幅方向Ｄ２に分割され、梁２０の軸方向Ｄ１の長さのコンクリートで構成されたブロック部を有する。梁２０は、複数のつなぎ筋２５及び複数の梁側面軸方向筋２６を備える。つなぎ筋２５は、ハーフＰＣａ部材２１～２３の上面近傍において、梁２０を構成する全てのハーフＰＣａ部材２１～２３に渡る長さで、梁２０の幅方向Ｄ２に延在するように配置される。梁側面軸方向筋２６は、梁２０の側面近傍において、垂直方向に離間して配置される。梁２０は、上部であって、梁２０の高さＨ１の半分以上の高さＨ２を有する領域である現場打設コンクリート部２９を有する。【選択図】図１
BEAM CONSTRUCTION METHOD, BEAM, AND HALF-PRECAST MEMBER
To provide a beam construction method for constructing a large-section reinforced concrete beam without using timbering, and to provide a beam and a half-precast member.SOLUTION: A beam 20 comprises multiple half precast members 21, 22, 23 that form the lowest part. Each of the half precast members 21 to 23 is divided in a width direction D2 of the beam 20, and has a block portion made of concrete having a length in an axial direction D1 of the beam 20. The beam 20 comprises a plurality of tie bars 25 and a plurality of beam side face axial bars 26. The tie bars 25 are arranged near upper surfaces of the half precast members 21 to 23 so as to extend in the width direction D2 of the beam 20 for a length spanning all of the half precast members 21 to 23 that constitute the beam 20. The beam side face axial bars 26 are arranged vertically spaced apart near the side face of the beam 20. The beam 20 has an upper portion, which is a cast-in-place concrete portion 29, which is an area having a height H2 that is equal to or more than a half of a height H1 of the beam 20.SELECTED DRAWING: Figure 1
【課題】支保工を用いずに大断面の鉄筋コンクリート造の梁を施工するための梁の施工方法、梁及びハーフプレキャスト部材を提供する。【解決手段】梁２０は、最下部を構成する複数のハーフＰＣａ部材２１，２２，２３を備える。各ハーフＰＣａ部材２１～２３は、梁２０の幅方向Ｄ２に分割され、梁２０の軸方向Ｄ１の長さのコンクリートで構成されたブロック部を有する。梁２０は、複数のつなぎ筋２５及び複数の梁側面軸方向筋２６を備える。つなぎ筋２５は、ハーフＰＣａ部材２１～２３の上面近傍において、梁２０を構成する全てのハーフＰＣａ部材２１～２３に渡る長さで、梁２０の幅方向Ｄ２に延在するように配置される。梁側面軸方向筋２６は、梁２０の側面近傍において、垂直方向に離間して配置される。梁２０は、上部であって、梁２０の高さＨ１の半分以上の高さＨ２を有する領域である現場打設コンクリート部２９を有する。【選択図】図１
BEAM CONSTRUCTION METHOD, BEAM, AND HALF-PRECAST MEMBER
梁の施工方法、梁及びハーフプレキャスト部材
SAITO MOTOTSUGU (author) / NAGAYA KEIICHI (author) / TANAKA YOSHIKAZU (author) / INUI TOMOHIRO (author)
2024-09-09
Patent
Electronic Resource
Japanese
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