Assalam o alaikum,
Is there any restriction on diameter of shear hoops in seismic zone 4? We can not provide less than 3/8 in stirrups. But for seismic zone 3,4 is there any further restriction regarding size of stirrup? My main concern is to know whether i can use 3/8 in dia stirrups hoops in zone 4 if it is satisfying spacing limits and required shear ratio?
Thanks.