This is an image from a Lord and Burnham Greenhouse circa 1938. My architect is asking me to interpret the abbreviation "F.I." Some of the greenhouses in the complex have cast iron members while other, newer ones, are steel. We're wondering if this is an archaic abbreviation for "Ferrous...
It has been our experience that sawcutting a formed structural slab is wholly unnecessary as the steel ratio is significantly higher than any minimum shrinkage reinforcing requirement, the square footage of slab cast in one day is usually less due to the higher overall volume of concrete, and...
it is a structural slab on grade, but not "suspended" in the truest sense. It has no form other than a sculpted subbase stone. Should the high organic levels in the earth actually consolodate over time, a gap could form between the underside of slab and the earth, but this would be fractions...
I am peer reviewing the design of a structural slab on grade. It has two conditions: one is an office, the other is a covered parking structure....both are enclosed and the parking structure is ambiently heated to 55+ deg year round.
The design engineer has utilized 1" of bottom cover and...
