Dual - System
A - code sayes if you have shear walls and ordinary frames ( beams+columns )
to resist earthquake
You can neglect the ordinary frames and resist the entire base shear by shear walls
and designe the ordinary frames just for axial loads.
You can neglect the ordinary frames and resist the entire base shear by shear walls
and designe the ordinary frames just for axial loads.
.
B - M y (ph.d) research sayes;
if you have moment resisting frames and walls( reinforce concrete or masonary )
to resist earthquake You cann neglect the walls and resist the entire base shear
by moment resisting frames and the walls design just for axial loads
and minimum reinforcement for concrete walls and conect the masonary walls to
the floor by dowels .
Dr .hamida
Dr .hamida