2.5.1 Selection of Earthquake Records
The minimum number of earthquake record sets to be selected for three-dimensional calculation as required by 220.127.116.11 is 11. The selection of the records and the control of the numbers are under the control of the user. 2.5.2 Scaling Earthquake Records Using Simple Scaling Method
The program issues a warning if the earthquake acceleration record set selected for three-dimensional calculation in accordance with 18.104.22.168 (b) does not comply with the required amplitude ratio. 2.5.3 Conversion of Earthquake Records to Ensure Spectral Matching
The averages of the spectra of the transformed earthquake ground motions should not be smaller than the design spectrum ordinates for all periods. This condition is user controlled.