Modello Esplicito Per La Resistenza A Taglio Di Travi In C.A. Con Armature Trasversali Disposte Secondo Due Giaciture

An analysis oriented mechanical model for shear strength evaluation of rc beams with transversal reinforcement with two different inclination, that required a numerical analysis, is tuned into a design oriented analytical model that can be handy utilized for practical design.

Nuove tecniche di rinforzo e adeguamento per elementi in calcestruzzo armato

A model for SFRC beams without shear reinforcement

In this paper a physical model, for the prediction of ultimate shear strength of Steel Fibers Reinforced Concrete (SFRC) beams is developed from the plastic Crack Sliding Model (CSM) introduced by Zhang (1997), based on the hypothesis that cracks can be transformed into yield lines. In this work the effectiveness factors are recalculated for SFRC beams and some further developments are introduced in the CSM, taking into account the fundamental post cracking tensile strength contribute of SFRC. The proposed model is validate by a large set of tests collected in literature and some numerical analyses were carried out to show the influence of fibers on the failure beams mode.