Assalaam o Alliakum Everyone!
ACI requires that for Special Moment Resisting Frames beam depth should satisfy this condition
ln/d >= 4
ln = clear span of beam
d = effective depth of beam
I have a beam of clear span 6' in my design which means maximum allowed d would be ln/4 (i.e. (6*12)/4 = 18") so h=21.5" (if c=2.5").
But the shear on the beams is too much that I can't decrease its h less than 27" (d=24.5") otherwise my beam fails.
Moreover, I can not increase width due to architectural requirements. I am stuck very badly.
Can I neglect this provision and move on?
Any help would be much appreciated.