An acceleration record set for different frequency content, amplitude and site classes

Dynamic analyses are important tools for seismic evaluation of structures in which the features of the used ground motion records have a key role. For proper estimation, the record set should have the desired extent and variability. However, when present literature is examined, it may be seen that difficulties still exist to have a record set with preferred properties. To ease these difficulties, a study conducted in scope of a project supported by The Scientific and Technological Research Council of Turkey (TUBITAK) under the title of “Change of Earthquake Ground Motions Depending on Soil Properties” and grant number 215M357. A set of acceleration records having different frequency content and soil classes based on average top 30 m shear velocity are given. Set includes 8400 records generated from 84 base rock acceleration passing through 100 different soil cases. The set is assumed to provide a wide range of frequency content, amplitude and soil classification option to researchers. Also, properties of devastating earthquakes in Turkey are investigated. Depth-average shear wave velocity relations are given for sand and clay materials. It is observed that; scaling real earthquake records in 0.7-1.3 range does not alter the frequency-amplitude relationship, records with a PGA of more than 0.4g have higher amplification ratios for waves larger than roughly 1.0 s periods when compared to records with smaller PGA.