EC8 Elastic Design Spectra

EC8 Elastic Design Spectra

In order to allow the comparison of the hazard spectrum (in acceleration or velocity) predicted by a hazard model to the Eurocode 8 design spectra, we provide a service to retrieve the design spectra (spectral acceleration or spectral velocity) for a given peak ground acceleration.

Calculations are done after Dogangün Adem, Ramazan Livaoglu (2006): A comparative study of the design spectra defined by Eurocode 8, UBC, IBC and Turkish Earthquake Code on R/C sample buildings. Journal of Seismology 10, pp 335-351.

User query

Provide the EC8 design spectrum for a given peak ground acceleration and event type (earthquakes with magnitude smaller than 5.5, or larger

Request format

[base-url]/ design-spectra/design_spectra_elastic_ec? lon=[longitude]&lat=[latitude]&spectratype=[smallmag|bigmag]&imt=[SV|SA]&design-acceleration=[acceleration]

Request example

http://appsrvr.share-eu.org:8080/share/design-spectra/design_spectra_elastic_ec?lon=7.6&lat=42.5&spectratype=bigmag&imt=SV&design-acceleration=0.02

Response example

<?xml version="1.0" encoding="UTF-8" standalone="true"?>

<ns2:nrml xmlns:ns3="http://quakeml.org/xmlns/quakeml/1.1" xmlns:ns4="http://www.w3.org/1999/xlink" xmlns:ns1="http://www.opengis.net/gml" xmlns:ns2="http://openquake.org/xmlns/nrml/0.3">

<ns2:hazardResult ns1:id="gml_id_79">

     <ns2:config>

          <ns2:hazardProcessing investigationTimeSpan="1.0" IDmodel="Elastic design spectra EC8, M < 5.5 (Type II), [m/s]" saDamping="0.05"/>

     </ns2:config>

     <ns2:hazardSpectraField ns1:id="gml_id_80" PoE="0.2">

          <ns2:spectraPeriodList>

               0.0 0.03 0.05 0.1 0.18 0.25 0.44 0.63 0.82 1.01 1.2 1.76 2.32 2.6 3.16 3.72 4.0

          </ns2:spectraPeriodList>

          <ns2:HSNode ns1:id="gml_id_81">

               <ns2:site>

                    <ns1:Point srsName="4326">

                         <ns1:pos>

                              7.6 42.5

                         </ns1:pos>

                    </ns1:Point>

               </ns2:site>

               <ns2:hazardSpectrum investigationTimeSpan="1.0" PoE="0.2">

                    <ns2:IML IMT="SV">

                         0.0 1.814E-4  3.979E-4 7.958E-4 0.001432  0.001989  0.001989 0.001989  0.001989  0.001989  0.001989  0.001356  0.001029  9.182E-4 7.555E-4 6.418E-4 5.968E-4

                     </ns2:IML>

               </ns2:hazardSpectrum>

          </ns2:HSNode>

     </ns2:hazardSpectraField>

</ns2:hazardResult>

</ns2:nrml>
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The hazard.EFEHR web platform and web services are developed, maintained and hosted by the Swiss Seismological Service (SED) at ETH Zurich under the umbrella of EFEHR, in collaboration with the GEM Foundation and EPOS (European Plate Observing System).

The work presented in this website has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreements No.s 730900, 676564 and 821115 of the projects SERA, EPOS-IP and RISE. The European Commission is not responsible for any use that may be made of the information contained in this website.