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EC5 - Deformation and creep of timber structures

Porteous, Jack; Kermani, Abdy


Jack Porteous

Abdy Kermani


With timber or wood-based structures, deformation rather than strength behaviour will commonly be the limiting factor in design and as such, a lack of understanding of design requirements may lead to under or over-designed timber members and connections. BS EN 1995-1-1:2004 is the Eurocode dealing with the design rules for buildings supported by timber structures, but the requirements for deriving structural deformations at different limit states are not always clearly presented or indeed defined. This paper aims to give guidance to the users of the Eurocode on the determination of instantaneous and creep deformations at the serviceability limit states and proposes a method for deriving deformations at the ultimate limit states, should this be required.


Porteous, J., & Kermani, A. (2009). EC5 - Deformation and creep of timber structures. The structural engineer : journal of the Institution of Structural Engineers, 87, 25-30

Journal Article Type Article
Publication Date 2009-09
Deposit Date Apr 17, 2014
Print ISSN 1466-5123
Peer Reviewed Peer Reviewed
Volume 87
Pages 25-30
Keywords Eurocode 5; Timber; Creep; Loads; Buildings; Eurocode 0; Stiffness; Deformation;
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