BS EN 1993-3-1:2006

1 General
  1.1 Scope
  1.2 Normative references
  1.3 Assumptions
  1.4 Distinction between principles and
      application rules
  1.5 Terms and definitions
  1.6 Symbols
  1.7 Convention for cross section axes
2 Basis of design
  2.1 Requirements
  2.2 Principles of limit state design
  2.3 Actions and environmental influences
  2.4 Ultimate limit state verifications
  2.5 Design assisted by testing
  2.6 Durability
3 Materials
  3.1 Structural steel
  3.2 Connections
  3.3 Guys and fittings
4 Durability
  4.1 Allowance for corrosion
  4.2 Guys
5 Structural analysis
  5.1 Modelling for determining action effects
  5.2 Modelling of connections
6 Ultimate limit states
  6.1 General
  6.2 Resistance of cross sections
  6.3 Resistance of members
  6.4 Connections
  6.5 Special connections for masts
7 Serviceability limit states
  7.1 Basis
  7.2 Deflections and rotations
  7.3 Vibrations
8 Design assisted by testing
9 Fatigue
  9.1 General
  9.2 Fatigue loading
  9.3 Fatigue resistance
  9.4 Safety assessment
  9.5 Partial factors for fatigue
  9.6 Fatigue of guys
Annex A [normative] - Reliability differentiation and
                      partial factors for actions
      A.1 Reliability differentiation for masts and towers
      A.2 Partial factors for actions
Annex B [informative] - Modelling of meteorological
                        actions
      B.1 General
      B.2 Wind force
      B.3 Response of lattice towers
      B.4 Response of guyed masts
Annex C [informative] - Ice loading and combinations
                        of ice with wind
      C.1 General
      C.2 Ice loading
      C.3 Ice weight
      C.4 Wind and ice
      C.5 Asymmetric ice load
      C.6 Combinations of ice and wind
Annex D [normative] - Guys, dampers, insulators,
                      ancillaries and other items
      D.1 Guys
      D.2 Dampers
      D.3 Insulators
      D.4 Ancillaries and other items
Annex E [informative] - Guy rupture
      E.1 Introduction
      E.2 Simplified analytical model
      E.3 Conservative procedure
      E.4 Analysis after a guy rupture
Annex F [informative] - Execution
      F.1 General
      F.2 Bolted connections
      F.3 Welded connections
      F.4 Tolerances
      F.5 Prestretching of guys
Annex G [informative] - Buckling of components of
                        masts and towers
      G.1 Buckling resistance of compression members
      G.2 Effective slenderness factor k
Annex H [informative] - Buckling length and slenderness
                        of members
      H.1 General
      H.2 Leg members
      H.3 Bracing members
      H.4 Secondary bracing members
      H.5 Shell structures

Pertains to the structural design of lattice towers and guyed masts and to the structural design of this type of structures supporting prismatic, cylindrical or other bluff elements.

1.1.1 Scope of Eurocode 3

See 1.1.1 of EN 1993-1-1.

1.1.2 Scope of Part 3.1 of Eurocode 3

1. This Part 3.1 of EN 1993 applies to the structural design of lattice towers and guyed masts and to the structural design of this type of structures supporting prismatic, cylindrical or other bluff elements. Provisions for self-supporting and guyed cylindrical and conical towers and chimneys are given in Part 3.2 of EN 1993. Provisions for the guys of guyed structures, including guyed chimneys, are given in EN 1993-1-11 and supplemented in this Part.

2. The provisions in this Part of EN 1993 supplement those given in Part 1.

3. Where the applicability of a provision is limited, for practical reasons or due to simplifications, its use is explained and the limits of applicability are stated.

4. This Part does not cover the design of polygonal and circular lighting columns, which is covered in EN 40. Lattice polygonal towers are not covered in this Part. Polygonal plated columns (monopoles) may be designed using this Part for their loading. Information on the strength of such columns may be obtained from EN 40.

5. This Part does not cover special provisions for seismic design, which are given in EN 1998-3.

6. Special measures that might be necessary to limit the consequences of accidents are not covered in this Part. For resistance to fire, reference should be made to EN 1993-1-2.

7. For the execution of steel towers and masts, reference should be made to EN 1090.

NOTE: Execution is covered to the extent that is necessary to indicate the quality of the construction materials and products that should be used and the standard of workmanship on site needed to comply with the assumptions of the design rules.