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2.4.6 徐变和收缩

EN 1992-1-1Bφtt 0 εc s tt s 2.2.6

t = 0tφt

φt = εtεt=0 - 1 

t 0.4 f ck

εt = εt=0 · φt + 1 

0.4 f ck

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2.28 -

1 +φ -

RF-CONCRETE Membersφt 2.2.6

φt,eff = kriecherzeugende Lastwirkende Last · φt 

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