2. Choose target times

ET analysis is based on the application of intensifying dynamic loading. Correct interpretation of the ET analysis results depends on how the results are correlated to equivalent seismic intensities. This is normally done through specifying particular times in ET analysis where the applied intensity can be considered to be equivalent to particular seismic intensities of interest. Expected value of various seismic response parameters of the system being analysed are considered to be equal to those from ET analysis at these so called "target times". Choosing appropriate target times is important in ET analysis. In this section some different approaches for finding appropriate target times based on linear acceleration response spectra is explained. Many different approaches can potentially be adopted in order to to find a target time. It is attempted to present the best practices here.