A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
COLUMN-BEAM FRAME
To provide a column-beam frame of reinforced concrete construction capable of reducing damage of a column-beam joint portion in an earthquake by moving a flexural yielding hinge position of a beam to a beam central portion side than conventional ones.SOLUTION: A column-beam frame 1 comprises a column 10 of reinforced concrete construction and a beam 20 of reinforced concrete construction connected with the column 10. The beam 20 comprises: a first stage beam upper end bar 30A; second stage beam upper end bars 30B, 30C; a first stage beam lower end bar 40A; second stage beam lower end bars 40B, 40C; a stirrup 50; an upper side restraining bar 51 surrounding the beam upper end bars 30A to 30C; and a lower side restraining bar 52 surrounding the beam lower end bars 40A to 40C. The second stage beam upper end bar 30C and the second stage beam lower end bar 40C are cut-off bars arranged only at an end portion side of the beam 20. At a tip of the cut-off bar, a fastening metal fitting 60 is provided.SELECTED DRAWING: Figure 1
【課題】梁の曲げ降伏ヒンジ位置を従来よりも梁中央部側に移動して、地震時における柱梁接合部の損傷を低減できる、鉄筋コンクリート造の柱梁架構を提供すること。【解決手段】柱梁架構１は、鉄筋コンクリート造の柱１０と、柱１０に接合される鉄筋コンクリート造の梁２０と、を備える。梁２０は、一段目梁上端筋３０Ａ、二段目梁上端筋３０Ｂ、３０Ｃ、一段目梁下端筋４０Ａ、二段目梁下端筋４０Ｂ、４０Ｃ、スタラップ５０、梁上端筋３０Ａ〜３０Ｃを囲む上側拘束筋５１、および、梁下端筋４０Ａ〜４０Ｃを囲む下側拘束筋５２を備える。二段目梁上端筋３０Ｃおよび二段目梁下端筋４０Ｃは、梁２０の端部側のみに配筋されたカットオフ筋であり、カットオフ筋の先端には、定着金物６０が設けられる。【選択図】図１
COLUMN-BEAM FRAME
To provide a column-beam frame of reinforced concrete construction capable of reducing damage of a column-beam joint portion in an earthquake by moving a flexural yielding hinge position of a beam to a beam central portion side than conventional ones.SOLUTION: A column-beam frame 1 comprises a column 10 of reinforced concrete construction and a beam 20 of reinforced concrete construction connected with the column 10. The beam 20 comprises: a first stage beam upper end bar 30A; second stage beam upper end bars 30B, 30C; a first stage beam lower end bar 40A; second stage beam lower end bars 40B, 40C; a stirrup 50; an upper side restraining bar 51 surrounding the beam upper end bars 30A to 30C; and a lower side restraining bar 52 surrounding the beam lower end bars 40A to 40C. The second stage beam upper end bar 30C and the second stage beam lower end bar 40C are cut-off bars arranged only at an end portion side of the beam 20. At a tip of the cut-off bar, a fastening metal fitting 60 is provided.SELECTED DRAWING: Figure 1
【課題】梁の曲げ降伏ヒンジ位置を従来よりも梁中央部側に移動して、地震時における柱梁接合部の損傷を低減できる、鉄筋コンクリート造の柱梁架構を提供すること。【解決手段】柱梁架構１は、鉄筋コンクリート造の柱１０と、柱１０に接合される鉄筋コンクリート造の梁２０と、を備える。梁２０は、一段目梁上端筋３０Ａ、二段目梁上端筋３０Ｂ、３０Ｃ、一段目梁下端筋４０Ａ、二段目梁下端筋４０Ｂ、４０Ｃ、スタラップ５０、梁上端筋３０Ａ〜３０Ｃを囲む上側拘束筋５１、および、梁下端筋４０Ａ〜４０Ｃを囲む下側拘束筋５２を備える。二段目梁上端筋３０Ｃおよび二段目梁下端筋４０Ｃは、梁２０の端部側のみに配筋されたカットオフ筋であり、カットオフ筋の先端には、定着金物６０が設けられる。【選択図】図１
COLUMN-BEAM FRAME
柱梁架構
WATANABE HIDEYOSHI (author) / SUGIYAMA TOMOAKI (author) / SAKAI YOSHINAO (author)
2021-04-08
Patent
Electronic Resource
Japanese
COLUMN-BEAM FRAME REPAIRING METHOD AND REPAIRED COLUMN-BEAM FRAME
| European Patent Office | 2018