EN 1990 describes the Principles and requirements for safety, serviceability and durability of structures. It is based on the limit state concept used in conjunction with a partial factor method.
For the design of new structures, EN 1990 is intended to be used, for direct application, together with Eurocodes EN 1991 to 1999.
EN 1990 also gives guidelines for the aspects of structural reliability relating to safety, serviceability and durability :
– for design cases not covered by EN 1991 to EN 1999 (other actions, structures not treated, other materials) ;
– to serve as a reference document for other CEN TCs concerning structural matters.
EN 1990 is intended for use by :
– committees drafting standards for structural design and related product, testing and execution standards ;
– clients (e.g. for the formulation of their specific requirements on reliability levels and durability) ;
– designers and constructors ;
– relevant authorities.
EN 1990 may be used, when relevant, as a guidance document for the design of structures outside the scope of the Eurocodes EN 1991 to EN 1999, for :
_ assessing other actions and their combinations ;
_ modelling material and structural behaviour ;
_ assessing numerical values of the reliability format.
EN 1990 establishes Principles and requirements for the safety, serviceability and durability of structures, describes the basis for their design and verification and gives guidelines for related aspects of structural reliability.
EN 1990 is intended to be used in conjunction with EN 1991 to EN 1999 for the structural design of buildings and civil engineering works, including geotechnical aspects, structural fire design, situations involving earthquakes, execution and temporary structures.
EN 1990 is applicable for the design of structures where other materials or other actions outside the scope of EN 1991 to EN 1999 are involved.
EN 1990 is applicable for the structural appraisal of existing construction, in developing the design of repairs and alterations or in assessing changes of use.
