Bracketed Cumulative Absolute Velocity CAV5

[jmbarbagelata]

Dear developers, I think it could be a very nice improvement to add to the already existing functions CAV and CAVstd, the cumulative absolute velocity estimated for ground motion time series with an acceleration cutoff of 5 cm/s^2, well known as CAV5. This intensity measure is very useful in geotechnical problems involving seismic actions, and several references used this IM. Also, I cannot find yet a library that do this calculations using python. Thanks!

[yexiang92]

Dear developers, I think it could be a very nice improvement to add to the already existing functions CAV and CAVstd, the cumulative absolute velocity estimated for ground motion time series with an acceleration cutoff of 5 cm/s^2, well known as CAV5. This intensity measure is very useful in geotechnical problems involving seismic actions, and several references used this IM. Also, I cannot find yet a library that do this calculations using python. Thanks!

hi, could you provide more detailed information, such as an equation description or reference?

[jmbarbagelata]

Hi, and sure. The equation is this one

The original reference is:

Kramer SL, Mitchell RA. Ground Motion Intensity Measures for Liquefaction Hazard Evaluation. Earthquake Spectra. 2006;22(2):413-438. doi:10.1193/1.2194970

But there are other works that use this measure.

[yexiang92]

Hi, and sure. The equation is this one

The original reference is:

Kramer SL, Mitchell RA. Ground Motion Intensity Measures for Liquefaction Hazard Evaluation. Earthquake Spectra. 2006;22(2):413-438. doi:10.1193/1.2194970

But there are other works that use this measure.

Thanks. I will add it in my free time and release it in the next version.

[yexiang92]

Hi, and sure. The equation is this one

The original reference is:

Kramer SL, Mitchell RA. Ground Motion Intensity Measures for Liquefaction Hazard Evaluation. Earthquake Spectra. 2006;22(2):413-438. doi:10.1193/1.2194970

But there are other works that use this measure.

Hi again. I have added the relevant code, see Commit 7aa383d

You can test whether the result is what you expected (version 0.1.3).

[yexiang92]