(中国石化工程建设公司，北京 100101)

［摘要］为满足完成国内合资及海外项目工程的需要，依据国标抗震规范GB50011—2002和美标UBC97规定的地震作用静力计算法，比较了结构在多种场地类型和地震烈度下的基底剪力计算结果。分析表明，在绝大多数情况下，框架结构国标地震基底剪力大于UBC计算值，最后给出了结果对比表以方便工程应用。

［关键词］地震；基底剪力； UBC；比较

Comparison of seismic base shear of structures between PRC code GB50011—2002 and UBC97

Xi Chunhua

(Civil Department, SINOPEC Engineering Incorporation, Beijing 100101,China)

Abstract:To meet the need of executing domestic and oversea projects, based on the PRC code GB50011—2002 and American code UBC97 regulations, the seismic base shear of structures under the different soil classifications and seismic accelerations is compared. The analysis shows, the PRC code give greater base shear than UBC in most cases. A comparison table is given for engineering application.