I would suggest using the 1997 NDS (2001 NDS is out there too). It has tabulated values for wood members attached to concrete and based on the failure mode (III or IV) the duration factor is probably 1.6 (see UBS table 2.3.2) for sill anchor bolts.
As the note states, 1.6 factor may be used for Mode III or Mode IV behavior. You have to check your sill plate for the controlling behavior per the NDS dowel bearing equations (single shear with concrete main member). Typically for sill plates the failure mode is IIIs and the 1.6 factor may be...
Check section 2211, light framed cold formed walls. There aren't the height limitations as for wood framed walls and I have seen, locally, up to 6 stories metal deck and concrete topping supported on this type of wall structure.
I don't care for tension only straps because they cannot be...
