Section Modulus of I-Beam

[jpagliaroli]

Can someone explain this to me if it's not too long? Or refer me to somewhere that explains this? Is this where you have to make a table? It is more straight forward for a rectangular section, but not this I-beam. I have checked kaplan, ballast, jenny's notes and mike's guide and I am not seeing/understanding. Not sure why NCARB can't explain how they got their answers. They obviously did the work for it, why not show it?

ncarb #6.PNG

Thank you,
Jamie

[jpagliaroli]

Finally found the answer with this video if anyone needs to know. Way easier than I thought. He does an example a little after minute 6.

https://www.youtube.com/watch?v=WDdkdC1sFQQ

[hnQ_9999]

I believe if this kind of question shows up
in the test, they would have a Beam Table
attached.
This is definitely a time trap, unless the beam section
is a solid square (would have served the same testing purpose).

[Coach]

I believe if this kind of question shows up
in the test, they would have a Beam Table
attached.

This question is straight out of the ncarb practice manual.

[Coach]

Subtract S of the voids from S of the overall rectangle.

[jpagliaroli]

Thanks coach. That's what I found from that you tube video I shared the link to. Much easier than I expected it to be! If you have a minute can you glance over the vignette I posted? I just need a quick blessing before the exam tomorrow.

Thanks,
Jamie