DESIGN OF SUPERHIGH AND LARGE PORTAL FRAMES

The portal frames were used for a workshop of refining lithium and potassium in Salt Lake Prefecture of Qinghai Province,whose height was 24m,which was not conformed with Technical Regulations for Steel Structure of Light Buildings with Portal Frames(CECS 102:2002).Thus,in the design specific measures were taken for treating design parameters,beam-column section of portal frame,brace layout and joint,which could guarantee the feasibility of the structural design.