Hey guys,
I have thoroughly searched my 14th edition AISC manual. I read through RCSC 3.2.2 a, b and c. Read through some commentary which lead me to 5.4.1- I see mention of "Appendix A" but cant find it, assuming it maybe a seperate publication. Anyways, long story short- I have some beams that are getting hot dip galvanized on the faying surfaces- What designates the surface as class a, b, or c? I know it needs to be wire brush roughened. Does roughening make it a class c? If unroughened then class a? Is there anything besides the mean slip coefficient involved with the varying classes? (oh and i forgot to mention my specs call out slip critical)
Any guidance/clarification greatly appreciated thank you guys!