slab on grade slab on grade EhabFaisal (Civil/Environmental) (OP) 15 Jun 17 19:46 Good evening I have an assignment to design a slab on grade supported on short columns with height of 1 meter is it right to design it like flat slab or it has another approach?! Thanks in advance. RE: slab on grade oldestguy (Geotechnical) 15 Jun 17 19:50 Sounds like an unusual configuration. Perhaps a more detailed description can be provided. RE: slab on grade KootK (Structural) 15 Jun 17 21:12 If the slab on grade is supported by the columns (piles?) rather than the grade itself then, yes, it is appropriate to design it like a flat, suspended slab. If you have expansive soils or frost heave issue, be sure to account for upwards pressure. I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it. RE: slab on grade fattdad (Geotechnical) 16 Jun 17 11:47 the OP is confusing. Is it a deck supported by columns or is a slab constructed on the grade of the earth? f-d ípapß gordo ainÆt no madre flaca! RE: slab on grade EhabFaisal (Civil/Environmental) (OP) 16 Jun 17 17:39 https://drive.google.com/open?id=0BxlMokjxG-MTcUY0Vzl3QTZ1TGs this is a picture for the example RE: slab on grade oldestguy (Geotechnical) 16 Jun 17 18:49 That's no picture of a completed job. Missing is the information s to what these individual shallow footings sit on. Rock? What is the explanation for the combination slab-on-grade and footings? RE: slab on grade fattdad (Geotechnical) 16 Jun 17 19:18 link's not active. f-d ípapß gordo ainÆt no madre flaca!