中美抗震设计规范主要地震动参数的对比研究

Comparative Study on the Main Parameters of Ground Motions in Seismic Design Codes in China and America

摘要: 通过对中美抗震规范中抗震设防标准、建筑物类别、场地类别、用于结构设计的地面运动取值及特征周期等参数的对比分析，表明由于中美规范抗震设计理念的差异，在确定抗震设防的基准地震及用于结构设计的地面运动取值时具有不同的地震危险性特征，同时给出中美规范建筑物类别、场地类别划分的差异及对应关系，比较了中美规范确定特征周期的相关影响参数，提出中美规范主要地震动参数的相互转换方法，可为今后海外项目抗震设计提供参考。

Abstract: By the comparison and analysis between the seismic design codes of China and America about the seismic precaution criterion, the building classification, the site classification, the ground motion acceleration for structure design and the characteristic period, it presents differences of the seismic hazard characteristics between Chinese code and American code when determining the seismic precaution criterion and the ground motion acceleration for structure design because of the difference of seismic design concept, shows the relationship on the building and the site classification, also compare the relative parameters of the characteristic period, finally the conversion relationships between the parameters of ground motions in Chinese code and American code are proposed to provide the reference for the seismic design of overseas projects in the future.