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2005 AISC Spec: Compressive Capacity for Members with Slender Elements

2005 AISC Spec: Compressive Capacity for Members with Slender Elements

(OP)
Please reference thread172-130886: New AISC spec: compressive capacity for members with slender elements titled "New AISC spec: compressive capacity for members with slender elements"

It was closed but I have a question about the same topic. The link to that thread is here: http://www.eng-tips.com/viewthread.cfm?qid=130886

I want to include Chapter section E7 into a spreadsheet I am developing. My confusion stems from E7.2. Slender Stiffened Elements, Qa. According to Table B4.1 it's Case 10: h/tw > 1.49*SQRT(E/Fy) that makes the section slender in the first place. So now why I am looking at
b/t
in E7.2? What is b and what is t in this case now? To me, b is the flange width and t
is the thickness of the flange. It's throwing me off.

Thanks in advance,
Daniel...

 

RE: 2005 AISC Spec: Compressive Capacity for Members with Slender Elements

b/t in this instance is referring to h/tw just like the table.  "b/t" is just the representative terminology for slenderness ratio - it doesn't necessarily really mean "b" as in the full flange width of a section.

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