My goal is to obtain the spectra of earthquakes: frequent, occasional, rare and very rare. The problem is that Latin American codes just define the spectrum of an earthquake with 10% probability of exceedance in 50 years, which would correspond to rare earthquake according to VISION 2000.
So, how can I get the remaining seismic spectras: frequent, occasional and very rare? Is it correct to scale the spectrum of the rare earthquake?. Conservatively, what scale factors would you suggest?
(Please mention your source, code or etc.)
Attached seismic performance objectives proposed by VISION 2000.
http://peer.berkeley.edu/course_modules/eqrd/index.htm?c227top.htm&227cont.htm&DesPhil/desphil5.htm
Hey Gerald
Let me see if i understand your question. You wanna get the spectrum of different type earthquakes.??. if it is, you should get the earthquakes input motion from a particulary seismic study (occasional, rare and so on) and use a software like DeepSoil to obtain the spectrums with your specifically subsurface soil. Then, you can compare the results with the type of soil (A, B, C, D, E or F) with those spectrums. Also check the NSR-10 from Colombia. Hope this can help you.
Dear Gerald: R. A. Falconi references a paper in Research Gate on the very topic you raise: spectral forms for earthquakes with different return periods in Latin America. It is titled "Uniform risk seismic spectra to verify structural performance in South America countries". Please see the following for the abstract:
https://www.researchgate.net/publication/290737888_Uniform_risk_seismic_spectra_to_verify_structural_performance_in_South_America_countries
You will have to request the document from Falconi.
I hope this helps
Article Uniform risk seismic spectra to verify structural performanc...
Dear Arturo:
Thanks for the reference, that's what i was looking for.
Now, I have reviewed Roberto Aguiar's paper and I found that the investigations referred are based on codes of 96 (Chile),97 (Peru), 98 (Colombia), etc. And naturally, current codes are more exigent. So, if you know about recent publications, it would help me a lot.
best regards.
Dear Gerald:
Below please find links to more recent documents that address the general topic:
http://earthquake.usgs.gov/hazards/products/foreign/SAmer-Proceedings2010.pdf
http://www.eaee.org/Media/Default/2ECCES/2ecces_eaee/1257.pdf
http://link.springer.com/chapter/10.1007%2F978-3-0348-6430-5_10
http://gji.oxfordjournals.org/content/187/1/128.short
These may not be as specific as you want, but I hope they are of use to you.
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