On the Maximum Span of Planar 1.5-Layer Space Frames With Crossing-units

摘要

1). For the planar 1.5-Layer Space Frames, considering therneconomy, constructability and structural stiffness, the mostrnsuitable T/D ratio is 1.0.rn(2). The maximum span of planar 1.5-Layer Space Frames canrnbe designed as big as 50m, and the steel quantity is similarrnbut less than the 2-Layer Space Frame within this range.