A.設(shè)計(jì)狀況系數(shù)B.荷載分項(xiàng)系數(shù)C.材料強(qiáng)度分項(xiàng)系數(shù)D.結(jié)構(gòu)重要性系數(shù)E.結(jié)構(gòu)系數(shù)
A.月牙肋鋼筋B.光圓鋼筋C.螺紋鋼筋D.人字紋鋼筋
A.HRB400B.HRB335C.HRB500D.HPB235