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Increase Presumptive Soil Bearing UBC>IBC

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SteveGregory

SteveGregory

Structural
Joined
Jul 18, 2006
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554
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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?
 
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