题目
钢筋混凝土大偏心受拉构件正截面承载力计算的两个基本公式是（ ）。A. Ne = f_y A_s (h_0 - a_s)B. Ne' = f_y A_s (h_0' - a_s)C. N = f_(y^2) A_s - f_(y^1) A_s' - alpha_1 f_c bxD. Ne = alpha_1 f_c bx ( h_0 - (x)/(2) ) + f_(y^1) A_s' (h_0 - a_s')
钢筋混凝土大偏心受拉构件正截面承载力计算的两个基本公式是（ ）。
A. $Ne = f_y A_s (h_0 - a_s)$
B. $Ne' = f_y A_s (h_0' - a_s)$
C. $N = f_{y^2} A_s - f_{y^1} A_s' - \alpha_1 f_c bx$
D. $Ne = \alpha_1 f_c bx \left( h_0 - \frac{x}{2} \right) + f_{y^1} A_s' (h_0 - a_s')$
题目解答
答案
CD
C. $N = f_{y^2} A_s - f_{y^1} A_s' - \alpha_1 f_c bx$
D. $Ne = \alpha_1 f_c bx \left( h_0 - \frac{x}{2} \right) + f_{y^1} A_s' (h_0 - a_s')$
C. $N = f_{y^2} A_s - f_{y^1} A_s' - \alpha_1 f_c bx$
D. $Ne = \alpha_1 f_c bx \left( h_0 - \frac{x}{2} \right) + f_{y^1} A_s' (h_0 - a_s')$