The tables are for superimposed load and they are considered to be live load. When calculating unshored spans, the bending stress in the extreme fiber controls. After construction, the entire section can be used to resist the tension. True on the superimposed load drop when shored (assumed 1-...
Agree. I am pretty sure this joist series was proprietary to Sheffield. The table also lists the manufacturer as Ashland; maybe parts of the same corporation. That is why it is so hard to find information so I thought I would post it.
There is another thread asking a few years ago with no...
The Antiquated Joist article / table in Structure Magazine, June 2009, claims that the design used 50 ksi yield strength for LS-Series joists. However, see...