ETA20kd
These records have been optimized to fit average acceleration spectra, average nonlinear displacement sepctra and average hysteretic energy of first components of FEMAP695 far-field record set.
"ETA20kd" series follow a linearly intensifying profile. Optimization has been done for 120 Ts in 0.02 sec to 5.0 sec range. Three ductility ratios are considered' 2, 4, and 8. Normally, the first 3 records should be used. However, five records are produced in case that they might be required for special purposes.
acceleration points are in terms of g.
NPTS=2000 DT=0.01
Direct access: ETA20kd
Related references:
Mashayekhi, M., Estekanchi, H. E., Vafai, H., & Mirfarhadi, S. A. (2018). Development of hysteretic energy compatible endurance time excitations and its application. Engineering Structures, 177, 753-769., doi.org/10.1016/j.engstruct.2018.09.089