Are the seismic maps available electronically? I need to determine seismic coefficients fairly often and being able to zoom in on an area would be a big help. I bought an electronic version of the whole ASCE standard but it only works on one computer (my office machine) and I'm often on my laptop away from the office. All I need are the seismic maps.
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Sesimic Maps 2
- Thread starter IFRs
- Start date
You can find the maps here:
Also, you can look up the values by Latitude and Longitude.
Ice
Also, you can look up the values by Latitude and Longitude.
Ice
NewcastleEngineer
Geotechnical
This link allows you to use the zipcode of the site to look up seismic coefficients for various spectral responses at different exceedance probabilities.
- Thread starter
- #5
A brief look at the maps there seems to show differences between them. Does ASCE 7 use of one or the other? I'm calculating seismic response of liquid storage tanks. The API 650 code refers to the mapped ASCE 7 spectral response accelerations 5% damped 0.2 seconds and 5% damped 1 second for 2% 50 year probability. The API code also uses 0.40 times the short parameter in lieu of looking it up.
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- #6
It is easier just to use the USGS Java application which allows selection of code (in your case ASCE 7) and calculates all the relevant parameters for you. See:
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