This module contains python functions that allow the computation of response directionality spectrum as described in Rivera-Figueroa and Montejo (2021).
The functions included can also be used to load acceleration records in PEER/NGA format and compute RotD100/RotD50 response spectra.
Cite the paper: Rivera-Figueroa, A., & Montejo, L.A. (2021). Spectral Matching RotD100 Target Spectra: Effect on records characteristics and seismic response. Earthquake Spectra. https://doi.org/10.1177/87552930211049259
Cite the code:
Example: https://youtu.be/EFnHXJhjlhE
Functions:
dfactor : computes a single directionality factor
DFSpectra : computes rotated response spectra and directionality response spectrum
load_PEERNGA_record : load record in .at2 format (PEER NGA Databases)