Follow OSHA
load test to 1.25 times the required loading and verify deflection.
Then go backwards through your calcs and you will have your answer.
Mollerich@ats-sd.com 40 yrs PE
if you want no cracks or as minimal as possible use a post tensioned slab. or
I use Euclid tuff stand structural fibers plus micro fiber to control shrinkage cracks
Use normal amount of steel for the span.
mollerich@ats-sd.com 40 years PE
1. Do not put any load on the vault. Locate the vault. The vault is designed probably for 18K axial load which is 9 kips on 2 tires down 3' which is less than 1000 psf.
The crane will break the vault.
Mike Ollerich PE 40 years and I work on a lot of law suites you will fix every thing and pay...
Does anyone know of if there is a new code in the IBC, or other codes, that allows an attic cavity to be filled completely full of insulation with NO ventilation?
