Eurocodes

The eurocodes are the ten European standards (EN; harmonised technical rules) specifying how structural design should be conducted within the European Union (EU). These were developed by the European Committee for Standardisation upon the request of the the European Commission.^[1]

The purposes of the eurocodes are:^[1]

• a means to prove compliance with the requirements for mechanical strength and stability and safety in case of fire established by European Union law.^[2]
• a basis for construction and engineering contract specifications.
• a framework for creating harmonized technical specifications for building products (CE mark).

By March 2010 the Eurocodes are mandatory for the specification of European public works and are intended to become the de facto standard for the private sector. The Eurocodes therefore replace the existing national building codes published by national standard bodies (e.g. BS 5950), although many countries had a period of co-existence. Additionally, each country is expected to issue a National Annex to the Eurocodes which will need referencing for a particular country (e.g. The UK National Annex). At present take up of Eurocodes is slow on private sector projects and existing national codes are still widely used by engineers.

List

Eurocodes 1 – 9 are organised thematically, here illustrated downwards from left to right: 1: snow load, 2: concrete bridge, 3: steel bridge, 4: composite, 5: timber house, 6: masonry, 7: geotechnical structure, 8: earthquake and 9: alluminium structure.

The curocodes are published as a separate European Standards, each having a number of parts. By 2002, ten sections have been developed and published:

• Eurocode: Basis of structural design   (EN 1990)

• Eurocode 1: Actions on structures   (EN 1991)

Part 1-1: Densities, self-weight, imposed loads for buildings   (EN 1991-1-1)

Part 1-2: Actions on structures exposed to fire   (EN 1991-1-2)

Part 1-3: General actions - Snow loads   (EN 1991-1-3)

Part 1-4: General actions - Wind actions   (EN 1991-1-4)

Part 1-5: General actions - Thermal actions   (EN 1991-1-5)

Part 1-6: General actions - Actions during execution   (EN 1991-1-6)

Part 1-7: General actions - Accidental Actions   (EN 1991-1-7)

Part 2: Traffic loads on bridges   (EN 1991-2)

Part 3: Actions induced by cranes and machinery   (EN 1991-3)

Part 4 : Silos and tanks   (EN 1991-4)

• Eurocode 2: Design of concrete structures   (EN 1992)

Part 1-1: General rules, and rules for buildings   (EN 1992-1-1)

Part 1-2: Structural fire design   (EN 1992-1-2)

Part 1-3: Precast Concrete Elements and Structures   (EN 1992-1-3)

Part 1-4: Lightweight aggregate concrete with closed structure   (EN 1992-1-4)

Part 1-5: Structures with unbonded and external prestressing tendons   (EN 1992-1-5)

Part 1-6: Plain concrete structures   (EN 1992-1-6)

Part 2: Reinforced and prestressed concrete bridges   (EN 1992-2)

Part 3: Liquid retaining and containing structures   (EN 1992-3)

• Eurocode 3: Design of steel structures   (EN 1993)

Part 1-1: General rules and rules for buildings   (EN 1993-1-1)

Part 1-2: General rules - Structural fire design   (EN 1993-1-2)

Part 1-3: General rules - Supplementary rules for cold-formed members and sheeting   (EN 1993-1-3)

Part 1-4: General rules - Supplementary rules for stainless steels   (EN 1993-1-4)

Part 1-5: Plated structural elements   (EN 1993-1-5)

Part 1-6: Strength and Stability of Shell Structures   (EN 1993-1-6)

Part 1-7: General Rules - Supplementary rules for planar plated structural elements with out of plane loading   (EN 1993-1-7)

Part 1-8: Design of joints   (EN 1993-1-8)

Part 1-9: Fatigue   (EN 1993-1-9)

Part 1-10: Material Toughness and through-thickness properties   (EN 1993-1-10)

Part 1-11: Design of Structures with tension components   (EN 1993-1-11)

Part 1-12: High Strength steels   (EN 1993-1-12)

Part 2: Steel Bridges   (EN 1993-2)

Part 3-1: Towers, masts and chimneys   (EN 1993-3-1)

Part 3-2: Towers, masts and chimneys - Chimneys   (EN 1993-3-2)

Part 4-1: Silos   (EN 1993-4-1)

Part 4-2: Tanks   (EN 1993-4-2)

Part 4-3: Pipelines   (EN 1993-4-3)

Part 5: Piling   (EN 1993-5)

Part 6: Crane supporting structures   (EN 1993-6)

• Eurocode 4: Design of composite steel and concrete structures   (EN 1994)

Part 1-1: General rules and rules for buildings   (EN 1994-1-1)

Part 1-2: Structural fire design   (EN 1994-1-2)

Part 2: General rules and rules for bridges   (EN 1994-2)

• Eurocode 5: Design of timber structures   (EN 1995)

Part 1-1: General – Common rules and rules for buildings   (EN 1995-1-1)

Part 1-2: General – Structural fire design   (EN 1995-1-2)

Part 2: Bridges   (EN 1995-2)

• Eurocode 6: Design of masonry structures   (EN 1996)

Part 1-1: General – Common rules and rules for buildings   (EN 1996-1-1)

Part 1-2: General rules – Structural fire design   (EN 1996-1-2)

Part 2: Design, selection of materials and execution of masonry   (EN 1996-2)

Part 3: Simplified calculation methods for unreinforced masonry structures   (EN 1996-3)

• Eurocode 7: Geotechnical design   (EN 1997)

Part 1: General rules   (EN 1997-1)

Part 2: Ground investigation and testing   (EN 1997-2)

Part 3: Design assisted by field testing   (EN 1997-3)

• Eurocode 8: Design of structures for earthquake resistance   (EN 1998)

Part 1: General rules, seismic actions and rules for buildings   (EN 1998-1)

Part 2: Bridges   (EN 1998-2)

Part 3: Assessment and retrofitting of buildings   (EN 1998-3)

Part 4: Silos, tanks and pipelines   (EN 1998-4)

Part 5: Foundations, retaining structures and geotechnical aspects   (EN 1998-5)

Part 6: Towers, masts and chimneys   (EN 1998-6)

• Eurocode 9: Design of aluminium structures   (EN 1999)

Part 1-1: General structural rules   (EN 1999-1-1)

Part 1-2: Structural fire design   (EN 1999-1-2)

Part 1-3: Structures susceptible to fatigue   (EN 1999-1-3)

Part 1-4: Cold-formed structural sheeting   (EN 1999-1-4)

Part 1-5: Shell structures   (EN 1999-1-5)

Each of the codes (except EN 1990) is divided into a number of Parts covering specific aspects of the subject. In total there are 58 EN Eurocode parts distributed in the ten Eurocodes (EN 1990 – 1999).

All of the EN Eurocodes relating to materials have a Part 1-1 which covers the design of buildings and other civil engineering structures and a Part 1-2 for fire design. The codes for concrete, steel, composite steel and concrete, and timber structures and earthquake resistance have a Part 2 covering design of bridges. These Parts 2 should be used in combination with the appropriate general Parts (Parts 1).

See also

• Geotechnical Engineering
• Limit state design (Load and Resistance Factor Design)
• List of EN standards
• Structural Engineering
• Structural robustness

Previous national standards

• BS 5950: British steel design standard, replaced by Eurocode 3 in March, 2010.
• BS 8110: British concrete design standard, replaced by Eurocode 2 in March, 2010.

References

1. 1 2 EN 1990:2002 E, Eurocode - Basis of Structural Design, CEN, November 29, 2001
2. ↑ European Council Directive 89/106/EEC

External links

• Eurocodes: Building the Future - European Commission
• 'National Annexes & Eurocodes', European standards institutes and links to download national annexes.

European Standards (EN) European Commission - European Committee for Standardization Construction (eurocodes) Basis of structural design 1: Actions on structures 2: Design of concrete structures 3: Design of steel structures 4: Design of composite steel and concrete structures 5: Design of timber structures 6: Design of masonry structures 7: Geotechnical design 8: Design of structures for earthquake resistance 9: Design of aluminium structures EN Other EN 13402 EN 3 EN 54 EN 71 EN 166 EN 206-1 EN 207 EN 417 EN 590 EN 1078 EN 1090 List