Geotech report- ultimate pile capacities
Geotech report- ultimate pile capacities
(OP)
I have a soils report from a geotech I haven't worked with before where H pile capacities are given as ultimate capacities. I remember previously getting reports that listed the allowable capacity or what F.S. to apply to the ultimate capacities given. I had to call the geotech to get the recommended F.S. for the piles and he suggested to use about 2. What is the point of giving a soils report with ultimate pile capacities when the allowable capacities are needed for the foundation design?





RE: Geotech report- ultimate pile capacities
The advantage is, if you're designing a concrete structure, you don't have to carry two sets of loads(one factored for the concrete design, the other unfactored for the foundation design) in your calculations. You can also adjust your factor of safety based on the likelihood of loads occuring.
As long as it's clearly stated, it shouldn't be a problem.
RE: Geotech report- ultimate pile capacities
RE: Geotech report- ultimate pile capacities
RE: Geotech report- ultimate pile capacities
RE: Geotech report- ultimate pile capacities
The geotechnical engineer may not know upfront if ASD or LRFD will be employed. So he may give the ultimate and then leave the F.S. to the designer. However, a range of appropriate F.S. should be given.
RE: Geotech report- ultimate pile capacities