| In this study, the shear friction approach is further developed and the effect of cracking is included in the shear friction method.; The effect of the overall height of a reinforced concrete beam on the ultimate shear strength is also studied. Previous research is reviewed and relevant models are highlighted. A new model is proposed for the size effect on shear strength of reinforced concrete beams.; The possibility of the concrete crushing, before sliding takes place, is investigated. The shear friction criterion is combined with the crushing criterion to model the failure of skew joint push-off tests. This combined model accurately predicts the behaviour of such push-off specimens. When the possibility of crushing is investigated for prestressed beams, it seems unlikely that the concrete can crush, and sliding failures are predicted. The predictions given by the shear friction method are compared with existing codes. |
