Modern codes of practice for design and assessment of civil engineering structures increasingly recognize and use the potential of reliability concepts. For example, in some code developments or updates reliability-based calibration is applied to underpin and improve partial factors for verifications of limit states. The current draft EN 1997 (Eurocode 7) even states reliability-based methods explicitly as one of the options for reliability verification, opening opportunities for exploiting the advantages of full-probabilistic analysis. Furthermore, codes of practice increasingly address the assessment of existing structures, in order to confront questions of remaining service life for the large numbers of ageing infrastructure assets in many countries. Reliability concepts including Bayesian analysis provide opportunities for tailored safety assessment existing (geotechnical) structures, enabling optimal use of all available data (e.g. site investigation, performance monitoring etc.). This session invites papers addressing reliability aspects in geotechnical codes of practice. The topics range from reliability backgrounds of codes, reliability-based calibration, code-related guidelines and examples of full-probabilistic designs and assessments relating to code requirements.
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