摘要
由于传统的峰值因子法是以零值穿越理论为基础来估算风压极值,该方法估算出来的风压极值往往偏小,同时很难精确反映风压分布的尾部特征及其屋盖边、角、脊等处通常表现为非高斯分布的特征,针对峰值因子法的局限性,分别提出了以经典极值理论为基础的Cook&Mayne法和以Hermite矩模型理论为基础的Hermite法来估算极值,同时选取矢跨比为八分之一的柱面屋盖为例,通过采用Cook&Manye法与Hermite法估算屋盖表面风压极值,然后针对这二种极值估算方法的计算结果进行对比,并给予评价。
Since the traditional peak factor method is based on the zero-value traversal theory to estimate the extreme wind pressure, the extreme wind pressure estimated by this method is often small, and it is difficult to accurately reflect the tail characteristics of the wind pressure distribution and the non-Gaussian distribution characteristics of the roof edges,corners and ridges. In view of the limitations of the peak factor method, This paper puts forward the Cook&Mayne method based on the classic extreme value theory and the Hermite method based on the Hermite moment model theory to estimate the extreme value respectively. At the same time, the Cook&Manye method and Hermite method are used to estimate the extreme value of the wind pressure on the roof surface by selecting the cylinder roof with the vector span ratio of one eighth as an example. Then the results of these two extreme value estimation methods are compared and evaluated.
作者
白文静
任磊
张志宇
马晓慧
田玉基
杨成
BAI Wenjing;REN Lei;ZHANG Zhiyu;MA Xiaohui;TIAN Yuji;YANG Cheng(Beijing Special Engineering Design and Research Institute,Beijing 100028,China;School of Civil Engineering,Beijing Jiaotong University,Beijing 100044,China)
出处
《建筑结构》
CSCD
北大核心
2022年第S02期2010-2013,共4页
Building Structure
