Cold Formed Steel section properties
Cold Formed Steel section properties
(OP)
I need to analyze a metal building for a beam load of a cable tray on a Cee 10x3.5x12gage and was looking for something that listed the section properties. This is a lipped channel made from 12 gage sheet steel. Is there somewhere that properties are listed or should I just calculate them myself? If I ignore the lip and assume the corner is sharp, will this be conservative?
TIA
TIA






RE: Cold Formed Steel section properties
www.daleincor.com/
Although at the moment the site doesn' seem to be working. They use the CEE label and I think the website has pdf's of the shape properties.
RE: Cold Formed Steel section properties
http://www.ssma.com/ssmatechcatalog.pdf
RE: Cold Formed Steel section properties
RE: Cold Formed Steel section properties
Look for the 1000S350-97 under the SSMA heading. Make sure you are checking according to the cold-formed steel specification by the AISI and not the AISC manual. They are not the same. Do not just use the "Ma" value out of the table. That does not account for laterally unbraced sections. A 12-gauge stud with a 3.5-inch flange shouldn't have a lot of loss due to LTB if you have a reasonable unbaced length but you still have to check it.
I don't know why the dale/incor site is down and I don't have my catalog here with me to look it up. It's worth it to keep trying their site but I think it's been down for a little while now.
RE: Cold Formed Steel section properties
I am a little out of my element with these cold rolled shapes. I usually design Transmission Towers and Substation Structures and we brew our own form of LRFD where we apply an overload to the loads and design all the way to yield. Any helpful pointers will be very welcome.
A storehouse of worthless information.
RE: Cold Formed Steel section properties
no way to go back and edit - unless you are a really bright engineer with time travel conquered....but you know that those odd quirky posts give this site character!
RE: Cold Formed Steel section properties
RE: Cold Formed Steel section properties
RE: Cold Formed Steel section properties
RE: Cold Formed Steel section properties
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I have been called "A storehouse of worthless information" many times.
RE: Cold Formed Steel section properties
RE: Cold Formed Steel section properties
Found properties for a 10"x3.5"x12ga Stiffened Channel in Table 1 of Section V of the AISI Manual. If you are still interested, let me know.
RE: Cold Formed Steel section properties
I found the properties in this link
http://www.marinoware.com/pdfs/structural.pdf
that UcfSE provided above. I computed my max moment for the beam and found that the max stress is about 17ksi (calcs are at work, I'm at home now) and the cable trays will brace the compression flange every 4 feet. I don't have an AISI manual and was wondering if buckling will be a problem? Is there a place on the web to look?
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I have been called "A storehouse of worthless information" many times.
RE: Cold Formed Steel section properties
http:/
This link is from the Dietrich website.
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It is a basic stud sizer to help with wall framing. If you play with it enough you might be able to find the equivalent load that provides your design moment and check your members. It could at least be a free and easy sanity check until you get the code you need. At an unbraced length of 4 feet I doubt you'll have any LTB issues but you should check per the code. Will those cable trays be able to brace the stud at 4 feet for the whole length? I would be leery of that unless you are very confident that is a correct assumption.
RE: Cold Formed Steel section properties
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I have been called "A storehouse of worthless information" many times.