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  1. Vector1962

    Unequal Leg Angles

    Yes, to the best of my knowledge I've used standard procedures referenced from the principle axes to the extreme points (tips of toes and leg/leg intersection perpendicular to the principle planes). I calculated and verified the Xbar, Ybar. Subsequently, rotated the geometric axes to align with...
  2. Vector1962

    Unequal Leg Angles

    Wondering how to calculate Swa,Swb, Swc, Sza, Szb and Szc for unequal angles. These values are listed in the AISC database and are used for problems involving principle axis of L shapes. For purpose of discussion, I have a L6x3.5x3/8 LLV and I can replicate all the data in the AISC spreadsheet...
  3. Vector1962

    Flat bars and plates

    Excellent. Thanks again.
  4. Vector1962

    Flat bars and plates

    @Hokie93, Excellent, thanks so much. I have the 13th edition and yes, 24ksi LRFD (16ksi ASD which I used). In the 13th edition, I don't see the 0.9Fy provision you reference. However, 0.9Fy is more than the double the 16ksi per the table notes you reference. The more conservative approach are...
  5. Vector1962

    Flat bars and plates

    Suppose i have a span of 1.5' and 3/4" thick bar, 12" wide. according to table 3-18b the plate has 7980 psf allowable. Simple enough, as i note above, can reproduce this table. Following the procedure of F11 (which by the way states it's applicable to bending either any geometric axis) the...
  6. Vector1962

    Flat bars and plates

    AISC 13th edition. I've been using A36, Fy36, Fu58, E29000 for both procedures. I think they are correct as I can reproduce Table 3-18b pretty close. The design guide is "Steel Design Examples", in pdf format.
  7. Vector1962

    Flat bars and plates

    I've followed the procedure contained in AISC specification F11 to determine the Mn. I used the AISC design guide examples, example F.12 and AISC spec section F11. The procedure seems pretty straight forward, I have it in Mathcad. I also was able to reproduce the calculations that produce...

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