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BS EN 1999-1-5:2007 Eurocode 9. Design of aluminium structures Shell structures

BS EN 1999-1-5:2007

Eurocode 9. Design of aluminium structures Shell structures

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Standard number:BS EN 1999-1-5:2007
ISBN:978 0 580 72799 3

BS EN 1999-1-5:2007

This standard BS EN 1999-1-5:2007 Eurocode 9. Design of aluminium structures is classified in these ICS categories:
  • 91.010.30 Technical aspects
  • 13.220.50 Fire-resistance of building materials and elements
  • 91.080.10 Metal structures

1.1.1 Scope of EN 1999

  1. P EN 1999 applies to the design of buildings and civil engineering and structural works in aluminium. It complies with the principles and requirements for the safety and serviceability of structures, the basis of their design and verification that are given in EN 1990 – Basis of structural design.

  2. P EN 1999 is only concerned with requirements for resistance, serviceability, durability and fire resistance of aluminium structures. Other requirements, e.g. concerning thermal or sound insulation, are not considered.

  3. EN 1999 is intended to be used in conjunction with:

    • EN 1990 Basis of structural design

    • EN 1991 Actions on structures

    • European Standards for construction products relevant for aluminium structures

    • EN 1090-1 Execution of steel structures and aluminium structures – Part 1: Requirements for conformity assessment of structural components5

    • EN 1090-3 Execution of steel structures and aluminium structures – Part 3: Technical requirements for aluminium structures5

  4. EN 1999 is subdivided in five parts:

EN 1999-1-1 Design of Aluminium Structures: General structural rules.
EN 1999-1-2 Design of Aluminium Structures: Structural fire design.
EN 1999-1-3 Design of Aluminium Structures: Structures susceptible to fatigue.
EN 1999-1-4 Design of Aluminium Structures: Cold-formed structural sheeting.
EN 1999-1-5 Design of Aluminium Structures: Shell structures.

1.1.2 Scope of EN 1999-1-5

  1. P EN 1999-1-5 applies to the structural design of aluminium structures, stiffened and unstiffened, that have the form of a shell of revolution or of a round panel in monocoque structures.

  2. The relevant parts of EN 1999 should be followed for specific application rules for structural design.

  3. Supplementary information for certain types of shells are given in EN 1993-1-6 and the relevant application parts which include:

    • Part 3-1 for towers and masts;

    • Part 3-2 for chimneys;

    • Part 4-1 for silos;

    • Part 4-2 for tanks;

    • Part 4-3 for pipelines.

  4. The provisions in EN 1999-1-5 apply to axisymmetric shells (cylinders, cones, spheres) and associated circular or annular plates and beam section rings and stringer stiffeners where they form part of the complete structure.

  5. Single shell panels (cylindrical, conical or spherical) are not explicitly covered by EN 1999-1-5. However, the provisions can be applicable if the appropriate boundary conditions are duly taken into account.

  6. Types of shell walls covered in EN 1999-1-5 can be, see Figure 1.1:

    • shell wall constructed from flat rolled sheet, termed ‘isotropic’;

    • shell wall with lap joints formed by connecting adjacent plates with overlapping sections, termed ‘lap-jointed;

    • shell wall with stiffeners attached to the outside, termed ‘externally stiffened’ irrespective of the spacing of the stiffeners;

    • shell wall with the corrugations running up the meridian, termed ‘axially corrugated’;

    • shell wall constructed from corrugated sheets with the corrugations running around the shell circumference, termed ‘circumferentially corrugated’.

  7. The provisions of EN 1999-1-5 are intended to be applied within the temperature range defined in EN 1999-1-1. The maximum temperature is restricted so that the influence of creep can be neglected. For structures subject to elevated temperatures associated with fire see EN 1999-1-2.

  8. EN 1999-1-5 does not cover the aspects of leakage.