T形截面梁,尺寸如图所示,如按最小配筋率ρmin=0.2%配置纵向受力钢筋As,则As的计算式为:
A.600X465X0.2%=558mm2 B.600X500X0.2%=600mm2 C.200X500X0.2%=200mm2 D.[200X500+ (600-200) X120] X0. 2%=296mm2正确答案C
T形截面梁,尺寸如图所示,如按最小配筋率ρmin=0.2%配置纵向受力钢筋As,则As的计算式为:
A.600X465X0.2%=558mm2 B.600X500X0.2%=600mm2 C.200X500X0.2%=200mm2 D.[200X500+ (600-200) X120] X0. 2%=296mm2正确答案C