1984 年 346 巻 p. 60-70
Statistical representations and modeling of earthquake load used in developing LRFD criterion are presented. The first and second order statistics on peak ground velocity and acceleration, and response spectra, such as normalized elastic velocity (accel.) spectra, cumulative plastic deformation spectra and ductility spectra are surveyed on the basis of available regression formulas and response analysis data by artificial earthquake emsenble.