ENV 1993-4-2 : DRAFT 1999

Foreword
1 General
   1.1 Scope
   1.2 Distinction between principles and application rules
   1.3 Normative references
   1.4 Definitions
   1.5 S.I. units
   1.6 Symbols used in Part 4.2 of Eurocode 3
   1.7 Terminology
   1.8 Sign conventions
2 Basis of design
   2.1 Fundamental requirements
   2.2 Reliability differentiation
   2.3 Limit states
   2.4 Actions and environmental effects
   2.5 Material properties
   2.6 Geometrical data
   2.7 Modelling of the tank for determining action effects
   2.8 Design assisted by testing
   2.9 Action effects for ultimate limit state verifications
   2.10 Durability
3 Properties of materials
   3.1 General
   3.2 Structural steels
   3.3 Steels for pressure purposes
   3.4 Stainless steels
   3.5 Toughness requirements
4 Basis for structural analysis
   4.1 Ultimate limit states
   4.2 Analysis of the circular shell structure of a tank
   4.3 Analysis of the box structure of a rectangular tank
   4.4 Equivalent orthotropic properties of corrugated
        sheeting
5 Design of cylindrical walls
   5.1 Basis
   5.2 Distinction of cylindrical shell forms
   5.3 Resistance of the tank shell wall
   5.4 Considerations for supports and openings
   5.5 Serviceability limit states
6 Design of conical hoppers
7 Design of circular roof structures
   7.1 Basis
   7.2 Distinction of roof structural forms
   7.3 Resistance of circular roofs
   7.4 Considerations for individual structural forms
   7.5 Serviceability limit states
8 Design of transition junctions at the bottom of the shell
   and supporting ring girders
9 Design of rectangular and planar-sided tanks
   9.1 Basis
   9.2 Distinction of structural forms
   9.3 Resistance of vertical walls
   9.4 Serviceability limit states
10 Requirements on fabrication and erection with relation to
   design
11 Simplified design
   11.1 General
   11.2 Fixed roof design
   11.3 Shell design
   11.4 Bottom design
   11.5 Anchorage design
Annex A (normative) Actions, partial factors and combinations
        of actions on tanks
      A.1 General
      A.2 Actions
      A.3 Partial factors
      A.4 Combination of actions

Gives principles and application rules for the structural design of vertical cylindrical above ground steel tanks for the storage of liquid products with certain characteristics.