Originally Posted By: Dave Diehl
B31.3 does not offer values for Ia & It but allows their use if you have them using "more rigorous analysis". Since Ia=It=1, I see them as placeholders for future development. We should expect updated SIFs and SSIs coming from an update to B31J but I do not think Ia and It are included at this time.

thanks sir dave for the reply and information.
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