A. X=√γ0Md/ξ(1-0.5ξ)fcd*b B.X=h0-√h02-2γ0Md/fcd*b C.X=ξbh0 D.X=Afsd/bfcd
A.X=h0-√h02-2γ0Md/fcd*b B.X=ρ*fsd/fcd*h0 C.X=√γ0Md/ξ(1-0.5ξ)fcd*b D.X=Afsd/bfcd
A.①構(gòu)造檢查②計算配筋率ρ③求ξ值④判定ξ≤ξb ⑤求Mu ⑥判定Mu≥γ0Md B.①構(gòu)造檢查②計算配筋率ρ③求x 值④判定ξ≤ξbh0 ⑤求As ⑥驗算 C.①構(gòu)造檢查②求x③判定ξ≤ξbh0 ④判定x≤2as’⑤求Mu ⑥判定 Mu≥γ0Md D.①構(gòu)造檢查②計算長細比③確定ψ④核定截面尺寸與配筋率⑤求Nu ⑥判定Nu≥γ0Nd