STUDY ON EVALUATING METHOD OF AXIAL LOAD CAPACITY OF SHEAR FAILING R/C COLUMNS CONSIDERING REINFORCING DETAILS

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  • KATO Daisuke
    Department of Architecture, Faculty of Engineering, Niigata University
  • LI Zhuzhen
    Department of Architecture, Faculty of Engineering, Niigata University
  • NAKAMURA Yukiko
    Department of Architecture, Faculty of Engineering, Niigata University
  • HONDA Yoshimasa
    Department of Architecture, Faculty of Engineering, Niigata University

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  • 配筋詳細に着目したRC造せん断破壊柱の軸力保持性能の評価法に関する考察
  • ハイキン ショウサイ ニ チャクモクシタ RCゾウ センダン ハカイチュウ ノ ジクリョク ホジ セイノウ ノ ヒョウカホウ ニ カンスル コウサツ

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Abstract

Objectives of this study were to propose evaluating method of axial load carrying capacities of R/C columns after shear failure using experimental data reported in the previous paper. For this purpose two criteria were examined, i.e. Mohr-Coulomb criterion and slip criterion between shear crack surfaces considering friction. Effects of confinement given by various hoop reinforcing details were specially paid attention. Two assumptions were used, i.e. i)the cohesive stress was degraded due to damage of core concrete and ii)confining stress by hoop reinforcement was degraded due to damage of reinforcement depending on the details. Finally evaluating equations of maximum deflection angles of shear failing columns experienced before losing their axial load carrying capacities were propose according to two assumptions mentioned above.

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