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Foreword 3

Objectives of the Eurocodes 3

Background to the Eurocode programme _ 3

Eurocode programme 3

Nation Application Documents (NADs) 4

Matters specific to this Prestandard 4

1 General 6

1.1 Scope 6

1.2 Normative references 7

1.3 Distinction between principles and application rules 8

1.4 Definitions 9

1.5 Symbols 9

2 Classification of actions 11

3 Design situations and limit states 13

3.1 General - identification of design situations 13

3.2 Serviceability limit states 14

3.3 Ultimate limit states 15

3 .4 Assessment of data for design situations 15

4 Representation of actions 17

4.1 Self-weight of structural and non-structural elements, and permanent actions caused by the ground 17

4.2 Prestressing, intentional imposed deformations and settlements 18

4.3 Temperature and shrinkage actions 20

4.4 Wind actions (Qw) 20

4.6 Water actions (<9wa) 21

4.7 Atmospheric ice loads 23

4.8 Construction loads 23

4.9 Seismic actions 24

4.10 Accidental actions 25

Annex A (normative)

Basis of design - supplementary clauses to ENV 1991-1 for buildings 26 Annex B (normative)

Basis of design - supplementary clauses to ENV 1991-1 for bridges 29

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