地震灾害评估软件烈度衰减系数研究

河北省地震应急指挥技术系统建成后，地震灾害评估软件中烈度衰减系数采用经验参数，计算出的烈度范围与实际地震存在一定偏差。通过收集河北省及周边地区地震烈度数据，采用回归分析法得到新的烈度衰减系数，并通过软件验证，其计算的烈度范围比采用原系数计算的烈度范围更接近实际情况。

Study on the Intensity Attenuation Coefficient of Seismic Disaster Assessment Software

After the completion of the earthquake emergency command technology system of Hebei province,the earthquake intensity distributions calculated by the seismic disaster assessment software of the system is not consistent with the earthquake damage records due to the experiential intensity attenuation coefficients.On basis of earthquake intensity data,using the regression analysis method,this paper provides new intensity attenuation coefficients of Hebei and its adjacent area.Through the software validation,with the new intensity attenuation coefficients,the results of the intensity range given by the software are more consistent with the records.