Reliability-based assessment of the partial factor for shear design of fibre reinforced concrete members without shear reinforcement

Abstract Fibre reinforced concrete (FRC) is increasingly used for structural purposes owing to its many benefits, especially in terms of improved overall sustainability FRC structures relative traditional (RC). Such increased use requires safe and reliable models design ultimate limit states (ULS). Particularly important are shear strength members without resistance due the potential brittle failure. The fib Model Code 2010 contains a model reinforcement same partial factor accepted RC elements. This approach, however, potentially on unsafe side since uncertainties some design-determining mechanical properties (i.e., residual flexural strength) larger than those RC. Therefore, this study, comprehensive reliability-based calibration ? c according performed. As first step, error ? assessed 332 experimental results. Then, parametric analysis 700 cases performed relationship between target failure probability ? R established. results demonstrate that current together with prescribed value = 1.50 does not comply probabilities different consequences over 50-year service life. changes proposed order achieve probabilities.