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Structural codes - relationship between science and practice

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The theory of structural reliability becomes a powerful scientific tool used for the development of new standards, and alternatively for the direct verification of new and existing structures. It is demonstrated that recently revised national and international standards for structural design including ISO standards and Eurocodes are already based on probabilistic concepts, mathematical statistics and on the theory of structural reliability. The background documents of Joint Committee on Structural Safety (JCSS) constitute a common basis for defining design rules relevant to the construction, use and verification of wide majority of buildings and civil engineering works. The key role in the design of new and particularly in assessment of existing structures is played by the target reliability level and the concept of reliability differentiation. Further, the scientific bases formed by the First Order Reliability Methods (FORM) provide effective methods for probabilistic code calibration based on the concept of limit states in conjunction with the partial factors methods. Foreseen future development and revisions of the present structural codes presuppose systematic use of the probabilistic theory of structural reliability.
  • [1] ISO 2394: General principles on reliability for structures. International Organisation for Standardisation, Geneva, 1998.
  • [2] EN 1990 Eurocode. Basis of structural design. European Committee for Standardization (CEN) Brussels, 2002.
  • [3] ISO 13822. Assessment of existing structures. International Organisation for Standardisation, Geneva, 2001.
  • [4] ISO 22111. Bases for design of structures - General requirements. International Organisation for Standardisation, Geneva, 2007.
  • [5] JCSS. Probabilistic Model Code, Parts 1 to 4, Basis of design, Load and resistance models, Examples. Joint Committee on Structural Safety., 2001.
  • [6] ISO 13824. Bases for design of structures - General principles on risk assessment of systems involving structures. International Organisation for Standardisation, Geneva, 2009.
  • [7] JCSS. Risk Assessment in Engineering - Principles, System Representation and Risk Criteria. Joint Committee on Structural Safety, 2008.
  • [8] Gulvanessian, H., Calgaro, J.-A. and Holický, M. Designer's Guide to EN 1990, Eurocode: Basis of Structural Design. Thomas Telford, London, 2002, 192 pp.
  • [9] Holický, M. Reliability analysis for structural design. ISBN 978-1-920338-11-4, SUN MeDIA, Stellenbosch, South Africa, 2009, 199pp.
  • [10] Retief, J.-V., Wium JA. Principles for development of standards for structural design. 2010 IABSE-fib Conference Codes in structural engineering, Dubrovnik, 2010.
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