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  1. gehe

    Bolt through an unstiffened HSS

    In AISC's manual in Section J3.10(c) it's written "For connections made using bolts that pass completely through an unstiffened box member or HSS, see Section J7 and Equation J7-1" Equation J7-1: Rn=1.8*Fy*Apb where Apb=projected bearing area I cant find how to calculate this "projected...
  2. gehe

    Should not AISC Table 7-7 and Table 10-1 give the same result?

    You are right,I see it now, Table 10-1 is for an "all-bolted" connection. So the eccentricity moment will be taken by both the supported and the supporting members.
  3. gehe

    Should not AISC Table 7-7 and Table 10-1 give the same result?

    Can anybody explain the huge differences between these two tables for connections with only two to three bolts? Attached is a spreadsheet that compares them:

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