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The ledger strips JLC article was a good read, thanks. The concern is more the top of the beams translating sideways because the planks are not continuous and typically only span 1-2 bays with nothing else that they frame into. This is a catwalk with 30 psf LL.

Ok, we will request for them to add blocking for the cases with toenails, but not comment on the half depth blocking. The only thing that the NDS commentary added was if the compression flange is continuously braced, which I do not believe applies because the planks could just go along for the...

Hello, this has been a discussion between some at my office and I wanted to get some additional opinions because we decided we don't know. NDS Section 3.3.3.4 states "where the depth of a bending member exceeds its breadth, d > b, lateral support shall be provided at points of bearing to prevent...

@JStephen Thanks I think that answers it for me.

I have had a general question about how to apply Ch 12 of ASCE 7-16 to nonbuilding structures. More specifically if I have a nonbuilding structure do I have to apply sections like 12.2.3.1 and 12.5.3.1? I have often seen people apply both to nonbuilding structures, but I can't find anything in...

Thanks for the responses. Human909, I have heard of reducing the LTB for the load position and it makes sense. I was wondering if you have ever found a source that quantifies the reduction? I have not been able to. I also completely agree about flange bending, which is why we picked an S shape...

I would agree with 271828 that AISC App 6.3.2a is a great resource for calculating if the braces are stiff enough to act as a torsional brace. The one thing that I would be concerned about where the torsion is going. I know for lateral bracing (AISC App 6.3.1) the lateral load needs to have a...

I am attempting to analyze a monorail beam that is supported from above with vertical HSS tubes. It has 5 points of support, 4 internal spans, and one cantilever span at the end. Per the steel manual F1 and App. 6.3 the beam must be restrained against rotation in the longitudinal axis. This beam...