Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
JUNCTION STRUCTURE AND JUNCTION METHOD FOR PRECAST CONCRETE MEMBER
To attain improvement in workability when casting cast-in-place concrete in a joint portion between precast concrete beam members.SOLUTION: A junction structure comprises: a precast pole P in which an upper end connection bar 26 and a lower end connection bar 27 are expanded laterally; a precast beam member 1A in which joint part reinforcement bars 15 and 16, an upper end bar 17 and a lower end bar 18 are expanded from one beam cross section and which includes a splice part on the other beam cross section; and a precast beam member 2A in which the joint part reinforcement bars 15 and 16, the upper end bar 17 and the lower end bar 18 are expanded from a beam cross section. A pole-beam joint part of the precast pole P and the precast beam member 2A is constructed by the upper end connection bar 26 and the lower end connection bar 27 in the splice part. A beam joint part of the precast beam member 1A and the precast beam member 2A is constructed by non-contact lap splices mutually constituted of the joint part reinforcement bars 15 and 16, the upper end bars 17 and the lower end bars 18. Concrete of the beam joint part is casted on a job site, a concrete strength is equal to that of a floor slab which is formed integrally with the beam joint part, and lower than that of the precast beam member.SELECTED DRAWING: Figure 1
【課題】 プレキャストコンクリート梁部材間の接合部分に現場打ちコンクリートを打設する際の施工性向上を図る。【解決手段】 上端接続筋２６、下端接続筋２７が側方に張り出したプレキャスト柱体Ｐと、一方の梁断面から接合部補強筋１５,１６、上端筋１７、下端筋１８が張り出し、他方の梁断面に継手部を有するプレキャスト梁部材１Ａと、梁断面から接合部補強筋１５，１６、上端筋１７、下端筋１８が張り出したプレキャスト梁部材２Ａとを備え、継手部で上端接続筋２６、下端接続筋２７によるプレキャスト柱体Ｐとプレキャスト梁部材２Ａとの柱梁接合部が構築される。接合部補強筋１５，１６同士、上端筋１７同士、及び下端筋１８同士によるあき重ね継手でプレキャスト梁部材１Ａ、プレキャスト梁部材２Ａの梁接合部が構築される。梁接合部のコンクリートは現場打ちされ、コンクリート強度は、梁接合部と一体形成される床スラブと同一強度で、プレキャスト梁部材より低強度である。【選択図】 図１
JUNCTION STRUCTURE AND JUNCTION METHOD FOR PRECAST CONCRETE MEMBER
To attain improvement in workability when casting cast-in-place concrete in a joint portion between precast concrete beam members.SOLUTION: A junction structure comprises: a precast pole P in which an upper end connection bar 26 and a lower end connection bar 27 are expanded laterally; a precast beam member 1A in which joint part reinforcement bars 15 and 16, an upper end bar 17 and a lower end bar 18 are expanded from one beam cross section and which includes a splice part on the other beam cross section; and a precast beam member 2A in which the joint part reinforcement bars 15 and 16, the upper end bar 17 and the lower end bar 18 are expanded from a beam cross section. A pole-beam joint part of the precast pole P and the precast beam member 2A is constructed by the upper end connection bar 26 and the lower end connection bar 27 in the splice part. A beam joint part of the precast beam member 1A and the precast beam member 2A is constructed by non-contact lap splices mutually constituted of the joint part reinforcement bars 15 and 16, the upper end bars 17 and the lower end bars 18. Concrete of the beam joint part is casted on a job site, a concrete strength is equal to that of a floor slab which is formed integrally with the beam joint part, and lower than that of the precast beam member.SELECTED DRAWING: Figure 1
【課題】 プレキャストコンクリート梁部材間の接合部分に現場打ちコンクリートを打設する際の施工性向上を図る。【解決手段】 上端接続筋２６、下端接続筋２７が側方に張り出したプレキャスト柱体Ｐと、一方の梁断面から接合部補強筋１５,１６、上端筋１７、下端筋１８が張り出し、他方の梁断面に継手部を有するプレキャスト梁部材１Ａと、梁断面から接合部補強筋１５，１６、上端筋１７、下端筋１８が張り出したプレキャスト梁部材２Ａとを備え、継手部で上端接続筋２６、下端接続筋２７によるプレキャスト柱体Ｐとプレキャスト梁部材２Ａとの柱梁接合部が構築される。接合部補強筋１５，１６同士、上端筋１７同士、及び下端筋１８同士によるあき重ね継手でプレキャスト梁部材１Ａ、プレキャスト梁部材２Ａの梁接合部が構築される。梁接合部のコンクリートは現場打ちされ、コンクリート強度は、梁接合部と一体形成される床スラブと同一強度で、プレキャスト梁部材より低強度である。【選択図】 図１
JUNCTION STRUCTURE AND JUNCTION METHOD FOR PRECAST CONCRETE MEMBER
プレキャストコンクリート部材の接合構造および接合方法
MATSUURA TSUNEHISA (Autor:in)
23.04.2020
Patent
Elektronische Ressource
Japanisch
IPC:
E04B
Allgemeine Baukonstruktionen
,
GENERAL BUILDING CONSTRUCTIONS
JUNCTION STRUCTURE AND JUNCTION METHOD FOR PRECAST CONCRETE BEAM MEMBER
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