记录到的强地震动的拟相对速度谱按照震级和局部土质以及地质两种场地分类的经验标定(英文)

EMPIRICAL SCALING OF PSEUDO RELATIVE VELOCITY SPECTRA OF RECORDED STRONG EARTHQUAKE MOTION IN TERMS OF MAGNITUDE, AND BOTH LOCAL SOIL AND GEOLOGICAL SITE CLASSIFICATIONS

根据震级、震源到台站的有代表性的距离、局部土质分类(“岩石”、硬土或深土)和局部地质场地条件(沉积、中等场地或基岩场地),本文提出了拟相对速度谱幅PSV(T)的经验回归方程。本文结果表明,土质分类以及地质场地条件两者在场地特定反应谱幅的标定中都应采用。

Empirical regression equations are presented for Pseudo Relative Velocity spectral amplitudes, PSV(T), in terms of earthquake magnitude, source-to-station representative distance, local soil classification ('rock', stiff soil or deep soil) and local geological site condi-tion(sediments, intermediate sites or basement rock sites). It is shown that both the soil classification and geological site condition should be used in the scaling of site specific response spectrum amplitudes.