Sorry for my late responding.
Yes BAretired, it is a Welded Wide Flange with a depth of 1200mm, flange width of 250mm, web thickness of 8mm and flange thickness of 12mm.
Initially, I have the same idea with you, I assume all the bolts (except for bolts in compressive region) would be in tension...
I'm sorry for my bad English.
I'm working in Vietnam and I'm familiar with TCVN (Vietnamese standards). When it comes to flush end-plate moment connection, TCVN doesn't have any formulas to calculate the end plate thickness.
We are involving in a project with a foreign client, they utilize the...