Guest
Is there an accurate method for figuring punching shear for slabs on grade?? I have a few concrete slab books "Concrete Floors on Ground", "Slab Thickness...", etc.; but I haven't seen an analysis procudere for checking this.
The problem seems to stem from the fact that "punching" is dependant on the subgrade below the slab. To truely get "punching" through of the slab the subgrade below has to complete settle out. The key, as I see it, is to determine the amount of settlement AND at what point the settlement becomes excessive.
I do a lot of work with SOG design and analysis and I'ld like to find a more "engineered" method then what is in my current books. Right now I feel like my solutions are overly-cautious....which isn't necessarily bad.
Any thoughts are appreciated.
The problem seems to stem from the fact that "punching" is dependant on the subgrade below the slab. To truely get "punching" through of the slab the subgrade below has to complete settle out. The key, as I see it, is to determine the amount of settlement AND at what point the settlement becomes excessive.
I do a lot of work with SOG design and analysis and I'ld like to find a more "engineered" method then what is in my current books. Right now I feel like my solutions are overly-cautious....which isn't necessarily bad.
Any thoughts are appreciated.