A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PRECAST CONCRETE BEAM MEMBER AND PRESTRESS INTRODUCTION METHOD THEREINTO
PROBLEM TO BE SOLVED: To prevent generation of non-static stability force accompanying anchorage of a tendon to a column member and curtail insertion time of the tendon into a precast concrete beam member, when spanning the beam member between the adjacent column members and introducing prestress into the beam member.SOLUTION: An end of a tendon 3 is anchored inside a beam member 2 at a location close to an end in an axial direction, and the other end of the tendon 3 is protruded from an edge surface on the other side of the beam member 2 in the axial direction. At the same time, a sheath 4 is embedded at a location inside the beam member 2 that does not interfere with the tendon 3, the sheath allowing the tendon 3 installed in the other beam member 2 to be inserted. The sheath 4 is positioned in a section between the edge surface on the side where the tendon 3 has been anchored and a central part of the beam member 2 in the axial direction, and an end of the sheath 4 on the central part side is communicated to a surface of the beam member 2.SELECTED DRAWING: Figure 1
【課題】隣接する柱部材間にプレキャストコンクリート製の梁部材を架設し、梁部材内にプレストレスを導入する上で、緊張材の柱部材への定着に伴う不静定力の発生を回避し、緊張材の梁部材への挿通時間を短縮する。【解決手段】緊張材３の一方側の端部を梁部材２の軸方向の一方側の端部寄りの内部に定着し、緊張材３の他方側の端部を梁部材２の軸方向の他方側の端面から突出させる一方、梁部材２中の緊張材３との干渉がない位置に、他の梁部材２内に配置された緊張材３が挿通可能なシース４を埋設し、シース４を緊張材３が定着された側の端面から梁部材２の軸方向の中間部までの区間に配置し、この中間部側のシース４の端部を梁部材２の表面に連通させる。【選択図】図１
PRECAST CONCRETE BEAM MEMBER AND PRESTRESS INTRODUCTION METHOD THEREINTO
PROBLEM TO BE SOLVED: To prevent generation of non-static stability force accompanying anchorage of a tendon to a column member and curtail insertion time of the tendon into a precast concrete beam member, when spanning the beam member between the adjacent column members and introducing prestress into the beam member.SOLUTION: An end of a tendon 3 is anchored inside a beam member 2 at a location close to an end in an axial direction, and the other end of the tendon 3 is protruded from an edge surface on the other side of the beam member 2 in the axial direction. At the same time, a sheath 4 is embedded at a location inside the beam member 2 that does not interfere with the tendon 3, the sheath allowing the tendon 3 installed in the other beam member 2 to be inserted. The sheath 4 is positioned in a section between the edge surface on the side where the tendon 3 has been anchored and a central part of the beam member 2 in the axial direction, and an end of the sheath 4 on the central part side is communicated to a surface of the beam member 2.SELECTED DRAWING: Figure 1
【課題】隣接する柱部材間にプレキャストコンクリート製の梁部材を架設し、梁部材内にプレストレスを導入する上で、緊張材の柱部材への定着に伴う不静定力の発生を回避し、緊張材の梁部材への挿通時間を短縮する。【解決手段】緊張材３の一方側の端部を梁部材２の軸方向の一方側の端部寄りの内部に定着し、緊張材３の他方側の端部を梁部材２の軸方向の他方側の端面から突出させる一方、梁部材２中の緊張材３との干渉がない位置に、他の梁部材２内に配置された緊張材３が挿通可能なシース４を埋設し、シース４を緊張材３が定着された側の端面から梁部材２の軸方向の中間部までの区間に配置し、この中間部側のシース４の端部を梁部材２の表面に連通させる。【選択図】図１
PRECAST CONCRETE BEAM MEMBER AND PRESTRESS INTRODUCTION METHOD THEREINTO
プレキャストコンクリート製梁部材及びプレキャストコンクリート製梁部材へのプレストレスの導入方法
OZAKI NOBUHIRO (author) / TAKAHASHI MOTOMI (author) / UENO MASAO (author)
2017-03-02
Patent
Electronic Resource
Japanese
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