Anyone have recommendations for diaphragm properties for wood sheathed semi rigid diaphragms? I am doing the analysis in Risa 3D. The material properties are: Modulus of elasticity (Risa used 1800 psf as default), G, and Nu.
I realize the NDS gives a formula for calculating diaphragm...
So for a diaphragm 3'x80' in plan dimensions, where the deck spans the 3': Would you use 3' joist span in the tables for calculating the diaphragm shear strength?
If you are designing a metal deck diaphragm for lateral loading perpendicular to the deck flutes, what joist spacing do you use for SDI's tables? Would it be the deck span spacing (5'-0" in my example image) or 30' in my example image...
I'm a little confused on when development length applies. I understand development length is used to transfer the tension and compression for the rebar in a beam to a column joint. Can tension development length be used to transfer uplift tension from a concrete wall to the footing? Or is this...