Which column type would be cheaper to use in mid-height buildings, circular hollow (CHS) or I-Wide flange sections? How would you compare these two types of column sections in terms of economy and efficiency?
To me, circular columns seem capable of doing everything that wide flange sections do, moreover, they provide symmetry. Besides, filling the tube section with concrete provides composite action which increases strength and stiffness. Also, in general they look more "beautiful" to the architects. Downsides are the complex detailing requirements in beam to column connections. However it's not clear to me which one would provide more economic solutions, combining all these factors. Actually the fact that wide flange sections are much more common in practice explains something.. However, still... I would very much appreciate your your opinions..
To me, circular columns seem capable of doing everything that wide flange sections do, moreover, they provide symmetry. Besides, filling the tube section with concrete provides composite action which increases strength and stiffness. Also, in general they look more "beautiful" to the architects. Downsides are the complex detailing requirements in beam to column connections. However it's not clear to me which one would provide more economic solutions, combining all these factors. Actually the fact that wide flange sections are much more common in practice explains something.. However, still... I would very much appreciate your your opinions..