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 BEAM MEMBER
To attain improvement in workability when casting cast-in-place concrete in a joint portion between precast concrete beam members.SOLUTION: In a joint part structure comprising: a precast concrete beam member 1A in which a joint part reinforcement bar 15 and a lower end bar 17 are expanded from an end face; and a precast concrete beam member 1B in which a joint part reinforcement bar 16 and a lower end bar 17 are expanded from a beam cross section, the joint part reinforcement bar 15 and the joint part reinforcement bar 16 form a non-contact lap splice, the lower end bar 17 and the lower end bar 17 form a non-contact lap splice, and a reinforcement junction of a beam joint part is constructed from the non-contact lap splices. Concrete of the beam joint part consists of cast-in-place concrete, and a strength of a portion of the concrete is equal to that of a floor slab which is formed integrally with the beam joint part, and lower than a concrete strength of the precast concrete beam members 1A and 1B.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】 接合部補強筋１５、下端筋１７が端面から張り出したプレキャストコンクリート梁部材１Ａと、接合部補強筋１６、下端筋１７が梁断面から張り出したプレキャストコンクリート梁部材１Ｂとを備えた接合部構造において、接合部補強筋１５と接合部補強筋１６とがあき重ね継手を形成し、下端筋１７と下端筋１７とがあき重ね継手を形成し、あき重ね継手で梁接合部の鉄筋接合が構築される。梁接合部のコンクリートは現場打ちコンクリートからなり、その一部が梁接合部と一体形成される床スラブとが同一強度で、かつプレキャストコンクリート梁部材１Ａ、１Ｂのコンクリート強度より低強度であることを特徴とする。【選択図】 図１
JUNCTION STRUCTURE AND JUNCTION METHOD FOR PRECAST CONCRETE BEAM MEMBER
To attain improvement in workability when casting cast-in-place concrete in a joint portion between precast concrete beam members.SOLUTION: In a joint part structure comprising: a precast concrete beam member 1A in which a joint part reinforcement bar 15 and a lower end bar 17 are expanded from an end face; and a precast concrete beam member 1B in which a joint part reinforcement bar 16 and a lower end bar 17 are expanded from a beam cross section, the joint part reinforcement bar 15 and the joint part reinforcement bar 16 form a non-contact lap splice, the lower end bar 17 and the lower end bar 17 form a non-contact lap splice, and a reinforcement junction of a beam joint part is constructed from the non-contact lap splices. Concrete of the beam joint part consists of cast-in-place concrete, and a strength of a portion of the concrete is equal to that of a floor slab which is formed integrally with the beam joint part, and lower than a concrete strength of the precast concrete beam members 1A and 1B.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】 接合部補強筋１５、下端筋１７が端面から張り出したプレキャストコンクリート梁部材１Ａと、接合部補強筋１６、下端筋１７が梁断面から張り出したプレキャストコンクリート梁部材１Ｂとを備えた接合部構造において、接合部補強筋１５と接合部補強筋１６とがあき重ね継手を形成し、下端筋１７と下端筋１７とがあき重ね継手を形成し、あき重ね継手で梁接合部の鉄筋接合が構築される。梁接合部のコンクリートは現場打ちコンクリートからなり、その一部が梁接合部と一体形成される床スラブとが同一強度で、かつプレキャストコンクリート梁部材１Ａ、１Ｂのコンクリート強度より低強度であることを特徴とする。【選択図】 図１
JUNCTION STRUCTURE AND JUNCTION METHOD FOR PRECAST CONCRETE BEAM MEMBER
プレキャストコンクリート梁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
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