OpenSeismoMatlab

Open source software for strong ground motion data processing

OpenSeismoMatlab can calculate the following strong motion data processing output:

1) Peak ground acceleration

2) Peak ground velocity

3) Peak ground displacement

4) Total cumulative energy and normalized cumulative energy vs time

5) Significant duration D_5_95 according to Trifunac & Brady (1975)

6) Significant duration D_5_75

7) Total Arias intensity (Ia)

8) Velocity time history (with baseline correction or not)

9) Displacement time history (with baseline correction or not)

10) Resampled acceleration time history (i.e. the input acceleration time history with modified time step size)

11) Linear elastic pseudo-acceleration response spectrum

12) Linear elastic pseudo-velocity response spectrum

13) Linear elastic displacement response spectrum

14) Linear elastic velocity response spectrum

15) Linear elastic acceleration response spectrum

16) Constant ductility displacement response spectrum

17) Constant ductility velocity response spectrum

18) Constant ductility acceleration response spectrum

19) Fourier amplitude spectrum

20) Mean period (Tm)

21) Lowpass Butterworth-filtered acceleration time history

22) Highpass Butterworth-filtered acceleration time history

23) Incremental Dynamic Analysis (IDA) of SDOF system excited with the input acceleration time history