A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
OPENING FORMATION METHOD AND OPENING REINFORCEMENT STRUCTURE
To provide an opening formation method capable of integrating an existing concrete member and a post-execution skeleton easily in forming an opening at the existing concrete member by post-construction.SOLUTION: An opening formation method comprises: a step S1 of repeating a work for drilling a reinforced concrete wall 1 by a boring drill and forming through-holes 20 while moving the boring drill along an outer periphery of a part to be an opening peripheral part 5 and overlapping adjacent through-holes 20 each other so as to be successive, wherein the opening peripheral part 5 is a part around an opening 2 in the reinforced concrete wall 1; a step S2 of removing a part P enclosed by the through-holes 20 in the reinforced concrete wall 1; and a step S3 of forming the opening peripheral part 5 and the opening 2 by arranging a sheath pipe 10 at the part to be the opening peripheral part 5 and installing steel fiber mortar.SELECTED DRAWING: Figure 4
【課題】既存コンクリート部材にあと施工で開口部を形成する場合に、既存コンクリート部材と後打ち躯体とを容易に一体化できる開口部形成方法を提供すること。【解決手段】開口部形成方法は、鉄筋コンクリート壁１のうち開口部２の周囲の部分を開口周縁部５とし、開口周縁部５となる部分の外周に沿って穿孔ドリルを移動しながら、穿孔ドリルで鉄筋コンクリート壁１に穿孔して貫通孔２０を形成する作業を繰り返し、隣接する貫通孔２０同士を重ねて連続させるステップＳ１と、鉄筋コンクリート壁１のうち貫通孔２０で囲まれた部分Ｐを撤去するステップＳ２と、開口周縁部５となる部分にシース管１０を配置して鋼繊維モルタルを打設することで、開口周縁部５および開口部２を形成するステップＳ３と、を備える。【選択図】図４
OPENING FORMATION METHOD AND OPENING REINFORCEMENT STRUCTURE
To provide an opening formation method capable of integrating an existing concrete member and a post-execution skeleton easily in forming an opening at the existing concrete member by post-construction.SOLUTION: An opening formation method comprises: a step S1 of repeating a work for drilling a reinforced concrete wall 1 by a boring drill and forming through-holes 20 while moving the boring drill along an outer periphery of a part to be an opening peripheral part 5 and overlapping adjacent through-holes 20 each other so as to be successive, wherein the opening peripheral part 5 is a part around an opening 2 in the reinforced concrete wall 1; a step S2 of removing a part P enclosed by the through-holes 20 in the reinforced concrete wall 1; and a step S3 of forming the opening peripheral part 5 and the opening 2 by arranging a sheath pipe 10 at the part to be the opening peripheral part 5 and installing steel fiber mortar.SELECTED DRAWING: Figure 4
【課題】既存コンクリート部材にあと施工で開口部を形成する場合に、既存コンクリート部材と後打ち躯体とを容易に一体化できる開口部形成方法を提供すること。【解決手段】開口部形成方法は、鉄筋コンクリート壁１のうち開口部２の周囲の部分を開口周縁部５とし、開口周縁部５となる部分の外周に沿って穿孔ドリルを移動しながら、穿孔ドリルで鉄筋コンクリート壁１に穿孔して貫通孔２０を形成する作業を繰り返し、隣接する貫通孔２０同士を重ねて連続させるステップＳ１と、鉄筋コンクリート壁１のうち貫通孔２０で囲まれた部分Ｐを撤去するステップＳ２と、開口周縁部５となる部分にシース管１０を配置して鋼繊維モルタルを打設することで、開口周縁部５および開口部２を形成するステップＳ３と、を備える。【選択図】図４
OPENING FORMATION METHOD AND OPENING REINFORCEMENT STRUCTURE
開口部形成方法および開口補強構造
TAKEZAKI SHINICHI (author) / WATANABE HIDEYOSHI (author) / TANABE SHOHEI (author) / MURAMATSU KOJI (author) / OHATA KATSUZO (author) / WATANABE MASAMITSU (author) / UJIIE AKIHIRO (author) / KYODA TAKAHIRO (author) / WATANABE MINATO (author)
2022-07-07
Patent
Electronic Resource
Japanese
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