An innovative approach to safety format of non-linear analysis applied to structural robustness assessment

Currently the CEN/TC250 is completing the development of a new (second) generation of Structural Eurocodes. The checking of robustness remains one of the important stages in the design of structural systems. Recommended design strategies for robustness checking are based on provisions given in actual EN 1991-1-7. A Non-linear pseudo-static analysis is widely used by following reasons: a non-linear structural analysis based on more realistic constitutive relations for basic variables makes possible a simulation of the real structural behaviour. Implementation of the non-linear pseudo-static analysis for assessment of the structural system in accidental design situation requires an alternate approach to safety format. The paper presents an innovative approach to safety format calibration for non-linear analysis of RC-structures subjected to accidental loads