Increase Presumptive Soil Bearing UBC>IBC
Increase Presumptive Soil Bearing UBC>IBC
(OP)
The UBC 97 code allowed you to increase the soil bearing values in the Table 18-1-A by 20% per foot up to 3 times the value in the table (footnote 2). The UBC values are slightly more conservative than the IBC 2000/2003 values in Table 1804.2.
The IBC 2000/2003 codes omit this provision. Is the concept used in the UBC code not valid? Or perhaps, the increase could be modified to use with the IBC values.
I am designing a flagpole nonconstrained footing (IBC 1805.7) for a pipe rack.
Any opinions?
The IBC 2000/2003 codes omit this provision. Is the concept used in the UBC code not valid? Or perhaps, the increase could be modified to use with the IBC values.
I am designing a flagpole nonconstrained footing (IBC 1805.7) for a pipe rack.
Any opinions?






RE: Increase Presumptive Soil Bearing UBC>IBC
Don Phillips
http://worthingtonengineering.com
RE: Increase Presumptive Soil Bearing UBC>IBC
This project has a short fuse. I would like to use a higher bearing value for my design with a deeper footing. Then, I was going to have the contractor hire a soils engineer to verify my design value.
Does this sound reasonable? Perhaps a 15% increase instead of a 20% increase per foot would be more like it.
RE: Increase Presumptive Soil Bearing UBC>IBC
RE: Increase Presumptive Soil Bearing UBC>IBC
RE: Increase Presumptive Soil Bearing UBC>IBC