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Earthquake Ground Motion Records in Time History

2.5.1 Selection of Earthquake Records

  • The minimum number of earthquake record sets to be selected for three-dimensional calculation as required by 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 (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.

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