Hello!
I understand that Table D-2 (1910.28(b)(11)(ii)) contains a printing error, and that for each flight of stairs with two open sides and a width of less than 44 inches, column 4 of Table D-2 should state "One stair rail system with hand rail on each open side". This was corroborated on the...
Frost depth is an aspect of the majority of foundation design that I do, but thinking about it, I realize I'm not sure how the actual frost depth is determined. I see STP1358, "Remote Field Methods to Measure Frost Depth" (from the ASTM website) outlines several ways that frost depth can be...
We recently had our garage floor (22x24) and outside slab (22x20) replaced due to severe
cracking and settling (the slab drained rainwater toward the house). We have heavy clay soil in
central Iowa. We requested a 5 inch pour with rebar, that the garage floor slope toward the
garage door and...
I have a vertical tank on a circular base plate four anchor bolts. I modeled the tank in RISA 3D with 4 pins (each representing one anchor bolt) and as such have four nodes where I have reactions.
When I bring this over to RISA-Foundation, I would like to size a single spread footing to handle...
I have a question regarding handrails on platforms per the latest OSHA requirements. Typically I have been designing the top rail of a stair rail system to serve as both a top rail and handrail. As of January 17, 2017, per OSHA, it appears as if the top rail of a stair rail must be >= 42” from...
