鋼製筒を用いた降伏機構分離型鉄筋コンクリート造の応力伝達システムに関する研究

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This paper discusses the stress transfer mechanism of reinforced concrete hinge isolated beams in the edge parts where steel sleeves cover longitudinal steel bars of members. The stress of steel sleeves, and the stress and moments acting on concrete at edge parts of beams were theoretically investigated and compared with the test results. The results of theoretical investigation and the test results clearly proved the excellent structural performance of reinforced concrete hinge isolated beams; the truss mechanism worked at edge parts of beams where longitudinal steel bars were un-bonded, and significant damage such as severe cracks of concrete did not occur even in the large deformation range of members, because the bending moment acting on concrete at the hinge regions was fairly small due to the un-bonded longitudinal steel bars.
2005-02-28