i am doing a project of 5 story in peshawar zone for seismic factor 0.2
data
beam (18*30)inch
tributary area (18*26) ft
dead and live live load (150 and 100 psf )
manual moment =470k-ft
etab result =232 k-ft
for case (1.2*dead+1.6*live )
why ?
please guide me
thank you