JPKIC 结构设计原理 jhepnihplestncturedesig (2)Cross-section dimensions:Rectangular cross-section should not be less than the minimum size 300mm,length of the side ratio of 1.5-3, the long side in the direction of bending. (3)Vertical steel Large eccentric compression: A+4=1%~3% A Eccentric Compression: A+A=0.5%~2% A(2) Cross-section dimensions: Rectangular cross-section should not be less than the minimum size 300mm, length of the side ratio of 1.5-3, the long side in the direction of bending. (3) Vertical steel Large eccentric compression: Eccentric Compression: =1%~3%  + = A As As  =0.5%~2% + = A As As 