Eccentric Loads on pad foundations
Eccentric Loads on pad foundations
(OP)
Can anyone help with the formula for bi-eccentric reactions on pad or mat type foundations to calculate max gbp?
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Eccentric Loads on pad foundations
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RE: Eccentric Loads on pad foundations
I think it is
qmax = P/(B*L) + 6Mx/(B*L^2)+ 6My/(L*B^2)
qmin = P/(B*L) - 6Mx/(B*L^2) - 6My/(L*B^2)
Which L= length of footing // to X axis
B = length of footing // to Y axis
Alright?
RE: Eccentric Loads on pad foundations
R
RE: Eccentric Loads on pad foundations
Similar info may be found in AREA Manual for Railway Engineering.
Send me your e-mail address and I will try to send you this info.
MGinsburg@leoadaly.com
RE: Eccentric Loads on pad foundations
If you study these closely, bi eccentricity introduces a more or less constant 0,84 factor to POP2514's equation. I just cant figure out why or how that balances out. Obviously I dont want to resort to graphical methods for rectangular pads. Someone must know!
Do you have any further advice ---TIA
RE: Eccentric Loads on pad foundations
By using compression only springs and adequate model with plates you can get also an answer for a footing of any shape through any modern FEM structural analysis having such elements.