What is the distinction between principles and application rules in the eurocodes?
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(1) Depending on the character of the individual clauses, distinction is made in EN 1997-1 between Principles and Application Rules.
(2) The Principles comprise:
— general statements and definitions for which there is no alternative;— requirements and analytical models for which no alternative is permitted unless specifically stated.
(3) The Principles are preceded by the letter P.
(4) The Application Rules are examples of generally recognised rules, which follow the Principles and satisfy their requirements.
(5) It is permissible to use alternatives to the Application Rules given in this standard, provided it is shown that the alternative rules accord with the relevant Principles and are at least equivalent with regard to the structural safety, serviceability and durability, which would be expected when using the Eurocodes.
(2) The Principles comprise:
— general statements and definitions for which there is no alternative;— requirements and analytical models for which no alternative is permitted unless specifically stated.
(3) The Principles are preceded by the letter P.
(4) The Application Rules are examples of generally recognised rules, which follow the Principles and satisfy their requirements.
(5) It is permissible to use alternatives to the Application Rules given in this standard, provided it is shown that the alternative rules accord with the relevant Principles and are at least equivalent with regard to the structural safety, serviceability and durability, which would be expected when using the Eurocodes.
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