题目
5.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 A_s - f'_y A'_s - alpha_1 f_c bxD. Ne = alpha_1 f_c bx ( h_0 - (x)/(2) ) + f'_y A'_s (h_0 - a'_s)
5.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. $N = f_y A_s - f'_y A'_s - \alpha_1 f_c bx$
D. $Ne = \alpha_1 f_c bx \left( h_0 - \frac{x}{2} \right) + f'_y A'_s (h_0 - a'_s)$
题目解答
答案
CD
C. $N = f_y A_s - f'_y A'_s - \alpha_1 f_c bx$
D. $Ne = \alpha_1 f_c bx \left( h_0 - \frac{x}{2} \right) + f'_y A'_s (h_0 - a'_s)$
C. $N = f_y A_s - f'_y A'_s - \alpha_1 f_c bx$
D. $Ne = \alpha_1 f_c bx \left( h_0 - \frac{x}{2} \right) + f'_y A'_s (h_0 - a'_s)$