介绍了建筑结构时程分析选择天然地震动记录的基本原则，对选取过程中频段控制原则和强震持时等不确定因素进行了分析，为时程分析选择天然记录提供参考建议。%Basic principles of selecting nature records for time history analysis of building structure are introduced. Uncertain factors on control basis of frequency scope and strong motion duration are analyzed. Some suggestions are provided for selecting nature records.
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