I want to get a seismic hazard map for period T= 0s (i.e. for PGA). However, the minimum value of T is 0.01s in CRISIS software. Can anyone help me with this?
Peak Ground Acceleration (Seismic Hazard Map for T=0s i.e. PGA)
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- Last Post 11 March 2019
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Content_Manager
posted this
18 December 2018
Dear Falak,
For the most of GMPEs, R-CRISIS considers T=0.01s as PGA (i.e. T=0.0s). R-CRISIS does not allow periods equal to zero for programing reasons.
To be sure of that, please specify which attenuation models you are using and I can verify, for each model, which period is interpreted as PGA.
Sorry for the problems this causes to you.
Thank you for your preference and interest in R-CRISIS.
Best regards,
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Nikos Vavlas
posted this
18 December 2018
Hello, does Akkar and Boomer (2010) calculate PGA for T=0?
Falak
posted this
18 December 2018
Thank you for the help!
Right now I am using Sharma et al. (2009).
Thanks and Regards.
Content_Manager
posted this
23 January 2019
Dear Nikos,
I have checked the Akkar and Boomer (2010) class and it does calculate PGA as T=0.0s.
I hope this helps you to solve your doubts.
Thank you for your preference and interest in R-CRISIS.
Best regards,
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Content_Manager
posted this
23 January 2019
Dear Falak,
I have checked the Sharma et al. (2009) class and it calculates PGA as T=0.01s.
I hope this helps you to solve your doubts.
Thank you for your preference and interest in R-CRISIS.
Best regards,
Nikos Vavlas
posted this
16 February 2019
Hello, and thank you for your help. Can you please also verify the following GMPEs?
Idriss (2014) NGA-WEST 2
Cauzzi and Faccioli (2008)
Boore and Atkinson (2008) NGA
I am interested in the spectral period in which they calculate PGA (T=0 or T=0.01?)
Thank you in Advance.
Content_Manager
posted this
11 March 2019
Dear Nikos,
This information is available in the GMPE brief description, this is an example:
The lower limit is interpreted as PGA if the dimension is the acceleration; if the dimension is velocity, the lower limit is interpreted as PGV.
I hope this solves your question.
Thank you for your preference and interest in R-CRISIS.
Best regards,
