Curved PT slab on grade
Curved PT slab on grade
(OP)
I posted this in Geotech/foundations with no responses. I'm hoping maybe here in the structural area someone could give their opinion on my issue.
I am designing a club house that is curved and the builder really wants to use a post tension slab on grade foundation. The shape of the building is almost a half circle. Rough dimensions are 40ft in width, 180 ft in length (if the curve is straightened) and the ends of the curve come to 140 degrees (so just 40 degrees short of making a half circle). If I was to design this as post tension, do I run the cables in the long direction along the curve or do I stay with stright tendons that then create difficult locations and many various lengths to deal with?
I want to go with a elevated 2-way rein. slab, but the builder really doesn't like the idea (due to added cost).
Any suggestions?
I am designing a club house that is curved and the builder really wants to use a post tension slab on grade foundation. The shape of the building is almost a half circle. Rough dimensions are 40ft in width, 180 ft in length (if the curve is straightened) and the ends of the curve come to 140 degrees (so just 40 degrees short of making a half circle). If I was to design this as post tension, do I run the cables in the long direction along the curve or do I stay with stright tendons that then create difficult locations and many various lengths to deal with?
I want to go with a elevated 2-way rein. slab, but the builder really doesn't like the idea (due to added cost).
Any suggestions?






RE: Curved PT slab on grade
Dik
RE: Curved PT slab on grade
I want to tell the builder it's just not practicle to use PT for this curved foundation, but I wanted to check if anyone has done a curved PT foundation before I tell the builder he can't do it.
RE: Curved PT slab on grade
But we used a lot more PT than the PTI design method requiresbecause we did not want any cracks, which is normally the main reason for using PT in a slab on ground.