Abstract
The partial factor method in structural codes ensures safety but may compromise efficiency. Reliability-based code calibration addresses this limitation. This paper examines the load partial factors in fib MC 2020, which, unlike the Eurocodes, differentiates factors for various load types in both design and assessment situations. Analyzing a specific set of such situations covering diverse failure modes and loads, the study demonstrates improved reliability homogeneity. The findings validate the formulation of partial factors for variable loads while highlighting optimization potential for permanent loads. Overall , the results suggest opportunities to enhance resource efficiency in concrete structure design and assessment.