[Nine8Six]

Originally Posted by SoCalBlackbox

I think for the basic calcs you can use 50 lbs. a a square foot you do the math. Just looking at the pictures I would think no problem. Would be nice to see the original calcs. Here in California all that stuff stays with the permit in the building dept.
Here's some more to check out http://www2.iccsafe.org/states/Florida2001/FL_Building1/PDFs/Chapter%2016_Structural%20Loads.pdf

Rick

Nice one Rick, thanks. We found the original architect firm & designer y'day morning and was told 400kg/m (82lbs sq foot) according to their database, for this particular floor/bldg. To them, given I maintain the load on 5mm thick steel plates and reinforce the center of the floor with an additional reinforced column (static stress, see sim pic), all should naturally hold and go unnoticed without 'too many' cracking. Needs seasonal inspections :/

The problem is with the OD8mm rebars in the 100mm thick concrete areas. Hence the steel plates recommendation.

Would you also suggest? 5mm in alloy steel seems pretty damn thick, no?