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Angle steel strength question
Hi, I don't have my genius engineer neighbor at hand any more so signed up to try to find an answer here. My german sucks too much to ask any of my fine german engineer locals.
I am building a tiny house on a trailer and it will overhang width-wise, so I need to create some shelf-like braces/wings. They will be under the walls, so holding most of the 2600 kg weight of the house. I'm thinking of something like this, made of angles of steel (upside down L, basically, with longer arm as the overhang):
~20-22 brackets, 10-11 on a side, ~2 feet apart
150 mm long (the overhang arm)
~75-90 mm tall (side bolted to the trailer frame)
~50 mm wide
9-14 mm thick steel.
There will be a heavy board across the braces to carry the walls.[IMG]https://www.engineersedge.com/engineering-forum/attachment.php?attachmentid=2034&stc=1[/IMG][IMG]https://www.engineersedge.com/engineering-forum/attachment.php?attachmentid=2035&stc=1[/IMG]
The photo shows some another tiny house builder made, as a rough example. (Look at the original ones he planned to use and weep!)
He used cold rolled steel. Would that be better than slices of angle steel (hot rolled)?
My main question is: how thick would this stuff have to be to handle the load, considering it will be in motion at least once?
Does this look like a good design?
Does the length of the vertical arm (trailer attached side) effect the overall strength at all/much?
Thanks for any help!!