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002428
2026-08-12

Creep Coefficient According to EN 1992-1-1, Annex B

The creep coefficient φ(t, t < sub > 0 < /sub>), according to EN 1992-1-1, Section 3.1.4, describes the ratio of creep strain to initial strain.

φ(t,t0)=εcrεel=εc(t)-εc0εc0=φ0·t-t0βH+(t-t0)0,3

φ(t,t0)

Creep coefficient

εcr

Creep strain

εel

Elastic strain

εc(t)

Strain of concrete over time

εc0

Immediate strain of concrete

φ0

Creep basic value

βH

Coefficient for considering relative humidity and the effective thickness of the building component
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