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CMU Wall module design using RAM Elements

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oengineer

Structural
Apr 25, 2011
732
I am designing a load bearing CMU wall. The wall is 31.7 ft tall with a 3.6 ft parapet. The length of the wall is 175.92 ft. My wind pressure is 30 psf and my DL = 1192 plf & my LL = 954 plf. I have 5 openings in the wall. The CMU wall is composed of 12" blocks. I have a picture of what the wall looks like:
I did a spread sheet calculation (just the wall without the openings) and I obtained a wall design using #5@24"o.c. I am not getting this design in RAM Elements. Not sure why? Suggestions/Comments appreciated.
 
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What is ram telling you?

Are you sure all the inputs for the spreadsheet versus ram are the same?

I've not used ram, but I assume you can get a detailed output? Maybe cross reference that with your spreadsheet and see where it differs.
 
Check it by hand, it's pretty simple. Probably take you just an hour or two.

The most critical (and difficult) part is to design the connections at the top. I'm not sure RAM does that for you.

The second item needing attention is the lintel over the big opening in the second sketch.

 
Are those service or ultimate loads? That seems like a really tall masonry wall. Have you checked slenderness limits?
 
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