A.容許應(yīng)力法B.極限狀態(tài)法C.安全系數(shù)法D.彈性理論計(jì)算法
A.1%B.2%C.3%D.5%
A.QZ40000DX/RO.05/Z±200B.QZ40000DX/Z±200/R0.05C.QZ40000SX/R0.05/Z±200D.QZ40000SX/Z±200/R0.05