Daniel:
Thanks for your input. The 1000 psf is part of Compliance Standard by the owner/client, to avoid the need for further testing (OSHA Regulations). The site being a timber mill with potential decayed organic material present, I guess the owner is being a little conservative for those two...
Those were very great suggestions, and proved very insightful. The question still hovering in my mind is in regards to the ability of the plywood sheathing to effectively distribute the load evenly to the lumbers/timbers below, especially where the outrigger mat is pretty big, say 10' or 11'...
I'm designing a wood pad to support an outrigger(24" dia) load of about 120 kips. The soil is pretty weak, about 1000 psf bearing capacity (wood mill environment). This is my first time doing this type of design, and would appreciate any resource/help out there.
Thanks,
Kweku