Information at one of the following links: For help enabling pop-ups, please consult the browser-specific Seismic Design Maps tool provides output reports via a If output is not visible, the web browser may be blocking pop-up windows byĭefault. Latitude: 17.5 to 19.8 longitude: -67.5 to -64.5 (Puerto Rico and the U.S. latitude: 18 to 23 longitude -161 to -154 (Hawaii).latitude: 24.6 to 50 longitude: -125 to -65 (Conterminous U.S.).Also, the location must be within one of the following boxes (in PleaseĬheck that the longitude value is negative and the latitude value is Seismic Design Maps tool.Įrror message: "Location Out of Bounds" - One (orīoth) of the site latitude and longitude values is (are) not valid. The procedures for these site-specificĬases are different from those used by the U.S. Site-specific ground motion procedures, for example, detailed in SectionĢ1.1 of the 2010 ASCE/SEI 7 Standard. Theĭesign of structures at Site Class F locations generally requires the use of Seismic Design Maps tool does not accommodate Site Class F. Use shear wave velocity, field standard penetration resistance, or shear Each document provides guidance on how to Users who do not know the site soil classification should consult theirīuilding code reference document. 2009 AASHTO Guide Specifications for LRFD Seismic Bridge Design.NEHRP Recommended Seismic Provisions: 2009 and and its Territories from the following documents: Seismic Design Maps tool provides seismic design parameter valuesįor the U.S. Most municipalities adopt the International Building Code (inįull, in part, or with amendments) and the AASHTO Guide Specifications for Govern their project type and location should contact their local buildingĭepartment. Users who are unsure which building code reference document and edition Help on input to the tool Choosing a building code reference document This tool provides the design values from the specifiedīuilding code reference document at the specified site. Of the gridded design values, most engineers need design values only at theirīuilding site. Make seismic design parameter values available to engineers. The USGS collaborates with organizations that develop model building codes to
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