right now i am dealing with flare line. and i am having branch connection on flare line ( Lateral TEE)

Generally for 45 deg branch connection SIF , FE software to be used. But in french code ( i don't know code no )somewhere it is mentioned SIF calculation for 45 deg branch connection. sin ( alpha ) consideration taken while calculating out plane sif. Sif values by fe & Sif values by that french code are almost similar.

If anybody having that french code can you please share.

Thanks in Advance.

It's the Codeti Code, availalble on the net.