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0.95fcu,k fcu,k 1.15fcu,k fcu,k+1.645δ
30MPa≤fcu, k<35MPa fcu, k≥30MPa fcu, k>30MPa fcu, k=30MPa
fcp>fcu fcp=fcu fcp=1.05fcu fcp<fcu
fcu,k=25Mpa 28Mpa≤fcu,k≤30Mpa 25Mpa≤fcu,k<28Mpa 25Mpa≤fcu,k<30Mpa
fc>fcu>ft fcu=fc>ft fcu>ft>fc fcu>fc>ft
≥0.95fcu.k ≥1.0fcu.k ≥1.05fcu.k ≥1.15fcu.k
fcu,0=fcu,k+1.645δ fcu,0=fcu,k+1.56δ fcu,0=fcu,k+1.85δ fcu,0=fcu,k+1.45δ
fcu,o≥fcu,k+1.645s fcu,o≥fcu,k+2s fcu,o≥fcu,k+3s fcu,o≥1.15fcu,k
≥0.95fCu.k ≥1.0fCu.k ≥1.05fCu.k ≥1.15fCu.k
fcp<fcu fcp=fcu fcp>fcu fcp≥fcu
V代表混凝土配制、输送及浇筑的容许最大速度 A代表浇筑的面积 h代表浇筑层的厚度 t代表所用水泥的初凝时间 混凝土的配制、输送及灌筑速度应符合式中要求
0,95fcu,k fcu,k 1.15fcu,k fcu,k+1,645σ
fcu,min≥0.85fcu,k fcu,min≥0.09fcu,k fcu,min≥0.95fcu,k fcu,min≥1.05fcu,k
fc>fcu>ft fcu=fc>ft fcu>ft>fc fcu>fc>ft
fcu,k=25Mpa fcu,k ≤30Mpa fcu,k <28Mpa fcu,k <30Mpa