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staad pro and modulus of subgrade reaction

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thanks for your reply nigel!

are you familiar with staad pro?  is the value of the modulus that staad pro expects as input also in the unit of kpa?  (we use the si system)

seaint(--nospam--at) wrote:

>Hi Arman,
>With regards to the modulus of subgrade reaction, Bowles recommends this value
>to be 40(SF)qa in kPa and 120(SF)qa is kips/square foot; where "qa" is the
>soil's allowable bearing capacity in the respective units and "SF" is the safety
>factor calculation from SF=qu/qa.