At what height of building we can do lapping or rainforcement steel?
my building floor to floor hight is 9′-4" and coloun rod is of number 8-20 dia and 2-16 dia + 4-20 dia !!!!!! at what height of building do i have to give lapping and how much can i lapp to save my steel.
First, it may well depend on the local codes, and you don’t say where you are. There will be restrictions on lapped splices in columns, mechanical splices my be needed.
Second, if you are going to be designing things where life safety is involved, you really should do your own homework.