Modulus of Sub-Grade Reaction
Modulus of Sub-Grade Reaction
(OP)
I was given a value of 150 KCF for my modulus of sub-grade reaction.
I've posted about this before, but could anyone give me some guidance?
How does this convert for a 20'x16' combined footing with 2'x2' panels?
Please let me know ASAP.
thanks.
I've posted about this before, but could anyone give me some guidance?
How does this convert for a 20'x16' combined footing with 2'x2' panels?
Please let me know ASAP.
thanks.
RC
All that is necessary for the triumph of evil is that good men do nothing.
Edmund Burke






RE: Modulus of Sub-Grade Reaction
RE: Modulus of Sub-Grade Reaction
Isn't there a formula to modify this based on the size of the footing?
RC
All that is necessary for the triumph of evil is that good men do nothing.
Edmund Burke
RE: Modulus of Sub-Grade Reaction
The 150 KCF is 150ksf per foot. Multiply that by the panel siae of 4sq ft to get 600 K/ft, then divide by 12"per ft to get 50 K/in.
RE: Modulus of Sub-Grade Reaction
The 150 KCF is 150ksf per foot. Multiply that by the panel size of 4sq ft to get 600 K/ft, then divide by 12" per ft to get 50 K/in.
RE: Modulus of Sub-Grade Reaction
86.81 psi * 24"x24" = 50 kips/in
we just went about it using different starting points. Sorry for not making the 87psi clear. All examples I've seen use psi as the units so I wanted to be consistent with that.
RC
All that is necessary for the triumph of evil is that good men do nothing.
Edmund Burke
RE: Modulus of Sub-Grade Reaction
When does this apply?
RC
All that is necessary for the triumph of evil is that good men do nothing.
Edmund Burke