AISC Design Guide 25 AISC Design Guide 25 marcleblanc12 (Mechanical) (OP) 22 Apr 16 18:14 Anybody know how useful AISC Design Guide 25 is? It's for Frame Design using Web-Tapered Members. I'm just wondering if it's a worthwhile book to get to design frames using web-tapered members. RE: AISC Design Guide 25 KootK (Structural) 22 Apr 16 21:32 It's the best document out there that I'm aware of. MBMA helped out with it. I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it. RE: AISC Design Guide 25 ajh1 (Structural) 25 Apr 16 11:34 The DG is basically state-of-the-art when it comes to web tapered design. That said it will probably take a computer program or at least a fairly complicated spreadsheet to properly utilize it. An MBMA task group has begun working with Dr. White on an update / addendum to the guide to address areas that were not completely covered the first time, such things as tapered sections with a change in taper within the braced length, axial loads applied at some location other than the ends, etc. The primary approach is that the overall section is analyzed somewhat globally, i.e., analyzing each cross-section along the braced length strictly for the forces that are determined at that specific location is not sufficient to fully establish the performance of the section.