(湖南大学土木工程学院， 长沙 410082)

［摘要］为了完善结构基本自振周期的估算公式，填补我国高层及超高层建筑基本自振周期估算公式空白,收集了我国近年来的302栋已建和在建的高层及超高层建筑的相关数据。通过MATLAB编程对其进行拟合，得到了我国高层及超高层建筑基本自振周期的估算公式。并且利用收集到的建筑相关数据，分别与美国、欧洲、日本规范以及我国《建筑结构荷载规范》（GB 50009—2012）中规定的估算公式的计算结果进行对比分析。结果表明，所提出的结构基本自振周期估算公式更为准确。最后，重点讨论了高层及超高层建筑设计中适宜结构基本自振周期的选取。

［关键词］高层及超高层建筑; 基本自振周期; 估算公式; 剪重比; 舒适度

中图分类号：TU973      文献标识码：A      文章编号：1002-848X(2014)18-0001-03

Fundamental natural period of high-rise and super high-rise buildings in China

Shen Pusheng, Zhang Chao, Ye Jinyao, He Yibin

 (College of Civil Engineering, Hunan University, Changsha 410082, China)

Abstract: In order to improve the practicability of estimation formula for the fundamental natural period of high-rise and super high-rise buildings, a new estimation formula for fundamental natural period has been established by MATLAB data of 302 constructed and under-construction  high-rise buildings. Besides, the new formula was compared with the estimation formula from United States, Europe, Japan and Load code for the design of building structures（GB 50009—2012）. The results show that the new estimation formula for the fundamental period of high-rise  and super high-rise buildings is more accurate and reasonable. At last, the appropriate fundamental natural period for high-rise and super high-rise buildings was discussed.

Keywords: high-rise and super high-rise building; fundamental natural period; estimation formula; shear-gravity ratio; comfortableness

作者简介：沈蒲生，教授，博士生导师，Email:pssheng1@163.com。

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