Slab on ground

[jefftang91]

i have a slab on ground on a showroom project to design in australia, the max load of the slab is probably less than 5kN/m UDL or 4 kN point load in its life time. the soil underneath has a modulus of subgrade reaction, k = 0.075 N/mm3. i was thinking to design it using TR 34 (but im not sure whether it is appropriate). the thickness of the slab would be 150mm and its plain concrete without any reinforcement.Slab is being cut into 6m x 6m square panels, as suggested by TR 34. Thermal contraction and drying shrinkage are accommodated by the cracks induced below these saw cuts. i was wondering do i still need any reinforcement to control the crack (e.g. fabric r/f) since i already have these saw cuts. and lastly, is my design appropriate?

 

[hokie66]

I'm not familiar with TR34, but you can expect cracks to form at about 3 metre centres. I would expect your 6 x 6 panels to break into 4 pieces.