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Eurocode 2 (EN 1992) — Design of Concrete Structures

Updated Mar 26, 2026
European standard for reinforced and prestressed concrete structural design.

EN 1992-1-1: concrete structures in buildings. Concrete classes: C12/15 through C90/105 (cylinder/cube strength). Typical: C25/30 (residential), C30/37 (commercial), C40/50 (high-rise, precast). Partial factors: gamma_c = 1.5 (concrete), gamma_s = 1.15 (steel). Cover requirements: XC1 (dry) 15mm, XC2 (wet) 25mm, XC3/4 (cyclic) 30-40mm. Minimum reinforcement: As,min = 0.26*fctm/fyk*bt*d (but >= 0.0013*bt*d). Deflection: span/depth ratio limits (basic 20 for simply supported, 26 for continuous). Crack width: max 0.3mm (normal), 0.2mm (prestressed). Eurocode 2 uses rectangular stress block with lambda and eta parameters. Shear: variable strut inclination method (21.8-45 degrees).

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EurocodeEN-1992concretereinforcementstructural
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2004
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Eurocode
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EN 1992
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