| In order to investigate upgrading effects of shear load-carrying capacity for RC cantilever beams due to mixing short-fiber、 static loading tests of RC beams mixed with short-fiber were conducted. The results are summarized as follows: Shear load- carrying capacity is improved due to mixing short-fiber; In case of fiber volume mixing ratio 1 % 、 upgraded due to bridge-effects of short-fiber on shear load-carrying capacity can be expected as with the case of stirrup ratio 0.25% ;Shear load-carrying capacity of RC beam can be estimated by formula using residual tensile strength of short-fiber mixed concrete with some safety margin.[*][*]短繊維混入によるRC片持梁のせん断耐荷性能の向上効果を把握するため，静載荷実験を実施した．その結果，以下のことが判明した．短繊維混入によってせん断耐荷力が改良できる．短繊維体積混入率が1% の場合，短繊維の架橋効果によってせん断補強筋0.25%と同等な効果が期待できる．RC梁のせん断耐荷性は，短繊維混入コンクリートの残存引張強度を用いた式によって安全側に評価される． |
