Limit state design

Limit state design

Date Published

10 August 2022

Document Type




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Eurocode 5 provides general rules and rules for buildings that are fundamental to the design of timber structures. Founded on the basis of design given in BS EN 1990, Eurocode 5 is a limit states, partial factor design code. In a limit state design codes, structures are designed for states beyond which the structure no longer fulfils the relevant design criteria.

Key Information

The two different limit states featured in Eurocode 5 – ultimate limit states and serviceability limit states – were defined. Partial safety factors or gamma factors were also outlined.

Key considerations in defining design values of actions were discussed with factors for representative values of actions listed. A simplified set of combination equations were also presented.