Data for: Ductility demand of bilinear hysteretic system with large post-yield stiffness: Spectral model and application in the seismic design of dual-systems

1. Supplementary Material 1 _ Earthquake Record Database 2. Supplementary Material 2 _ Selected Earthquake Record 3. Supplementary Material 3 _ Coefficients in Eq.(2) and Eq.(3)1. 补充材料1 _ 地震动记录数据库（Earthquake Record Database） 2. 补充材料2 _ 选定地震动记录（Selected Earthquake Record） 3. 补充材料3 _ 式(2)与式(3)中的系数