纵向受拉钢筋分别采用HPB235、HRB335、HRB400时,相对界限受压区高度ξb为()
A.0.624,0.550,0.518 B.0.614,0.540,0.518 C.0.614,0.550,0.518 D.0.614,0.550,0.528正确答案C
纵向受拉钢筋分别采用HPB235、HRB335、HRB400时,相对界限受压区高度ξb为()
A.0.624,0.550,0.518 B.0.614,0.540,0.518 C.0.614,0.550,0.518 D.0.614,0.550,0.528正确答案C