A.γx=1.O,γy=1.05 B.γx=1.O5,γy=1.05=1.O C.γx=1.O5,γy=1.2 D.γx=γy=1.0,Mx
A.15235/fy B.13235/fy C.13fy/235 D.(10+0.1λ)/fy
A.1.0 B.1.05 C.1.1 D.1.2