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JPH116162A Expired / Lapsed JP ⏱️ 0.0 years remaining

Construction method of reinforced concrete underground outer wall

Assignee: Obayashi Corp
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Filing: 1997-06-18
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Granted: —
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Expires: 2017-06-18
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Abstract

Abstract Translated from Japanese (57)【要約】 【課題】 スラブコンクリートの強度発現前でも、ま た、地下外周が吹き抜けの場合でも、土圧による山留め 壁からの水平力を支えることができ、かつ工事作業性の よい鉄筋コンクリート地下外壁の施工方法を提供する。 【解決手段】 建築現場をとり囲む山留壁2の工事とと もに内部地盤の掘削工事を進め、外周壁および各階のス ラブ3の周辺部を除いて逆打ち工法によりコンクリート を打設し、最下階のマットスラブ打設後、1階のスラブ 3の周辺部と山留め壁2との隙間からコンクリートを流 し込んで最下階から1階スラブ3まで順に後打コンクリ ートを打設して上下の梁躯体にわたる地下外壁12を後 打コンクリート工事で構築する地下外壁の施工方法にお いて、半PCa梁4とし、これの上部に突出する梁鉄骨 5に反力をとった水平束材7により、各階のスラブ3の 周辺部と山留壁2との間に隙間を確保する。 (57) [Summary] [Problem] Reinforced concrete underground that can support horizontal force from a retaining wall due to earth pressure and has good workability even before the strength of slab concrete is developed, and even if the underground outer periphery is a stairwell Provide an external wall construction method. SOLUTION: The excavation work of the inner ground is promoted together with the construction of the mountain retaining wall 2 surrounding the building site, and concrete is poured by the reverse striking method except for the outer peripheral wall and the periphery of the slab 3 on each floor, and the lowermost floor is constructed. After casting the mat slab, concrete is poured from the gap between the peripheral portion of the slab 3 on the first floor and the retaining wall 2 and the post-cast concrete is poured from the lowest floor to the first slab 3 in order to cover the upper and lower beam frames. In the method of constructing an underground outer wall 12 to be constructed by post-casting concrete work, a semi-PCa beam 4 is used, and a horizontal bundle 7 which takes a reaction force on a steel beam 5 projecting above the half beam is used to form the slab 3 on each floor. A gap is secured between the peripheral portion and the retaining wall 2.

Inventors

  • 👤 Toshiichi Shimokawabe
  • 👤 敏一 下川辺
  • 👤 Yuji Sato
  • 👤 勇二 佐藤
  • 👤 Shokichi Gokan
  • 👤 章吉 後閑
  • 👤 Koichiro Kurisu
  • 👤 浩一郎 栗栖

Bibliographic Details

Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-10-31 17:57
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