foundation design
foundation design
(OP)
This is what the soil report says:
"We have performed Bearing Capacity Analyses for these footings, and based on these analyses, and engineering judgment, we recommend a Factored Bearing Resistance of 1450 PSF."
What does this mean? Sorry, I usually deal with Allowable Bearing Pressure and I expected that the Factored Bearing # should be higher. 1450 psf is very low even for an allowable bearing pressure #.
"We have performed Bearing Capacity Analyses for these footings, and based on these analyses, and engineering judgment, we recommend a Factored Bearing Resistance of 1450 PSF."
What does this mean? Sorry, I usually deal with Allowable Bearing Pressure and I expected that the Factored Bearing # should be higher. 1450 psf is very low even for an allowable bearing pressure #.
Never, but never question engineer's judgement





RE: foundation design
Ryan Coggins, P.E., S.I.
http://www.linkedin.com/in/ryancoggins
RE: foundation design
Never, but never question engineer's judgement
RE: foundation design
RE: foundation design
RE: foundation design
Mike McCann
MMC Engineering
Motto: KISS
Motivation: Don't ask
RE: foundation design
Michael.
Timing has a lot to do with the outcome of a rain dance.
RE: foundation design
Think it would be worthwhile to get on the horn and talk to the geotechs.
RE: foundation design
When I first started, I did an analysis (I was green) and came up with an allowable bearing pressure of something like 1750 psf - I told my principal that perhaps we could kick it up to 1900. He questioned as to whether I wanted to sleep at night - and for the type of project and the cost of an extra 1 m3 of conc, he made the decision to give 1600! Basically, it must be remembered that if we go too skinny on the foundations - it'll cost a whole lot more than the few extra m3 of concrete - of course, I am not talking mega-projects.
RE: foundation design
net allowable bearing pressure, sure. Ultimate bearing pressure, yes.
Factored bearing resistance, no.
If they've performed analysis (analyses?), ask to review it to better understand factors of safety and anticipated settlements. Then again, they may not want to show you that stuff.
f-d
¡papá gordo ain't no madre flaca!
RE: foundation design
On the off-chance that any other testing firm out there besides this one were to get the testing job... you need to make sure there isn't "confusion" about what to test for on the CMT side.
RE: foundation design
fattdad - that is just scary, huh?
RE: foundation design
But it troubles me how could this report wasn't checked before release.
Will you please check with his office, and let us know the explanation?
RE: foundation design
RE: foundation design
RE: foundation design
RE: foundation design