我国大陆地区常用浅壳地震的地震动参数衰减关系

Review on the commonly-used ground motion parameters attenuation relationships for shallow crustal earthquakes in Chinese mainland

对地震动参数衰减关系应用时涉及的地震动参数、地震参数、基本模型、回归方法等方面的要点进行了阐述。以华北地区为例,简要介绍了数十年我国工程抗震设防应用中常用的几组浅壳地震峰值加速度、加速度反应谱衰减关系的主要特点,并对其差异进行了比较分析。最后总结了我国现阶段衰减关系研究的不足,对其未来发展方向进行了展望。

This paper illustrates the key points of ground motion parameters,earthquake parameters,base models and regression methods,which are always involved in applying attenuation relationships of ground motion parameters.These parameters and models could satisfy the demands for earthquake engineering application in Chinese mainland.Taking North China as an example,this paper reviews the major features of several commonly-used attenuation relationships for shallow crustal earthquakes in recent decades,and their differences are compared and analyzed.Finally,the authors summarize the limitations of current researches on attenuation relationships in Chinese mainland,and propose the research prospect for future study.