摘要
随着土木工程结构日益向大型化、复杂化的趋势发展,对结构本身提出了更轻、更柔的要求,结构对风荷载的敏感性增加,对风时程的特性研究也倍受重视。本文通过风速时程的关联维数分析,证实了其具有一定的分形特征。从全国80个典型站点风速记录的关联维数统计得知,风速时程的分形维数均约在1.7左右。
In recent years, the building structure become larger and more complex, and the structure turns to be lighter and more flexible, so it is more sensitive to the wind load. Now, wind history characteristic research has gotten the attention of civil engineers. The correlation dimension results of wind time history proved its typical fractal characteristic. By the statistics analysis of correlation dimension of wind speed records from 80 typical stations, the fractal dimensions are about 1.7.
出处
《华中科技大学学报（城市科学版）》
CAS
2008年第4期273-275,共3页
Journal of Huazhong University of Science and Technology
基金
国家自然科学基金委创新研究群体资助项目(50621062)
关键词
风速时程
分形
域重新标度法
关联维数
wind speed time history
fractal
rescaled range analysis method
correlation dimension
