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Ss & S1 USGS 2002 Long & Lat values

Ss & S1 USGS 2002 Long & Lat values

Ss & S1 USGS 2002 Long & Lat values

(OP)
Does IBC allow for structural engineer to use Ss and S1 from the USGS 2002 data instead of 1996?

Thanks in advance.

RE: Ss & S1 USGS 2002 Long & Lat values

I don't think there's anything in the IBC that says you can or can't use the newer maps.  There are some situations where using a newer code can cause coordination problems.  But in this case, the newer maps simply reflect new research, not a new design methodology.  All of the government projects that I work on require the use of IBC 2000 with the 2002 USGS maps.  So unless your code authority doesn't allow use of the 2002 maps, there shouldn't be a problem.

RE: Ss & S1 USGS 2002 Long & Lat values

You may run into trouble with your permitting department if the values used are less than what they normally see. I know I would.

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