Here's the loading diagram. I know I don't show the surcharge lateral pressures, and it's not to scale, but I think it gets the point across. I used the 3' backfill zone swell pressure loading from the swell pressure diagram in the previous...
These are good questions. I've attached the swell pressure diagram I was provided. I'm trying to use the 3' backfill zone currently (due to property line locations).
emmgjlf:
1) Swell pressures come from the existing clay soils behind the backfill.
2) Material directly behind the wall is a...
Hey all - I have a project that has some deep basement walls retaining a maximum of 14'. Due to the poor soils on site, and the limits of the property lines, the geotech provided a diagram that shows the distribution of the horizontal earth pressures due to clay swelling (to be in addition to...
Interesting KootK - I have two stringers in this case with angles bracing them laterally. These stringers are attached to wood beams top and bottom. Both wood beams sit in "u" shaped saddles to steel columns on each side (they were coincidentally already on the plans for other reasons). I don't...
It will look something like this image in the link below (that was provided to me in concepts). The treads and all will be different, but the pattern is roughly the same.
https://www.houzz.com/hznb/photos/interior-stairs-and-cable-railings-traditional-staircase-new-york-phvw-vp~100207667
Ron - The lengths of each horizontal/vertical member will ensure code compliance for the tread depths and riser heights. Angles are welded to the inside faces of the tubes to create supports for the actual steps. I agree that the configuration would be very difficult to fabricate. I've already...
I have a client that wants to use hss tubes to create a stair stringer in a zig zag pattern spanning diagonally between two wood beams. Essentially, the tubes will follow the path of the risers and treads with hss6x2x1/4 horizontals, and hss4x2x1/4 verticals. They'll be two of these frames, with...
