강섬유보강 콘크리트보의 전단-휨내력에 관한 연구

Abstract

This paper concerns the incorporation of steel fiber in reinforced concrete beams under the combined effect of shear and flexure. Then, this study is presented for the significant effect of steel fibers in improving the shear resistance of reinforced concrete beams without stirrups. The approach described in this study follows the basic concept outlined by Imam et al.9) in their considerable study for shear-flexure interaction of steel fiber reinforced concrete beams.Based on the previous equations,18),24) an analytical model was developed and published for predicting the relative flexural capacity of steel fiber reinforced concrete beams(), i.e., the ratio of moment with shear interaction to pure flexural moment. The observed modes of failure for 205 test beams agree well with the predictions. Data presented in the literature are also analyzed and compared.