Hi, If we look at the shear safety report, it is seen that the design shear force of the shear is greater than the "0.22Acfcd" dimension condition. And>0.22Acfcd Curtain ductility level is normal. According to TDY 2007, Ve=2*Vd will be taken. If we look at the end forces of the curtain, we see that the shear force value is 147.2789 tf in G+Q+EY2 loading. Accordingly, the design force Ve is Ve=2*147.2789=294.55 tf. Ve=294.55 >0.22*Ach*fcd=252.01 tf. The condition is not met. Accordingly, you need to either increase the size of the curtain or apply a carrier system change that will reduce the design force. Good work