Sometimes, it was found that the calculated reinf. area is less more the minimum reinf.
of course you can use steel area less than minimum value when the needed concrete are is less than half of available.....regards
Possibly, but you need to make sure the colum would respond in acductile manner.
Dear Mr. Karam Mahmoud… you attached a good technical paper, but it depends on the PhD dissertation of the paper author. Do you any specification about the subject ?
Provided that the maximum load is far below the cross-section capacity, okay. But, if that is the condition then change the column size to smaller is more economical. The important think is that all strength and ducitlity requirements are still met.
Yes, one can provide less than the codal requirement provided it satisfies the ductility requirement, particularly in high seismic zones.
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