矩形建筑双幕墙结构风压脉动的非高斯性及峰值因子

张敏; 楼文娟

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矩形建筑双幕墙结构风压脉动的非高斯性及峰值因子

水利与土木工程 | 更新时间：2023-11-28

- 矩形建筑双幕墙结构风压脉动的非高斯性及峰值因子
- Non-Gaussian features and peak factor of fluctuating wind pressures on double-skin facades of high-rise building with rectangular shape
- 工程科学与技术 2009年41卷第5期页码：75-81
- 作者机构：
  
  浙江大学结构工程研究所
- 作者简介：
- 基金信息：
  
  国家自然科学基金资助项目(50578144)
- DOI：
  中图分类号：
- 纸质出版日期：2009，
  
  网络出版日期：2008-12-12，
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张敏,楼文娟.矩形建筑双幕墙结构风压脉动的非高斯性及峰值因子[J].工程科学与技术,2009,41(5):75-81.

Zhang Min, Lou Wenjuan. Non-Gaussian features and peak factor of fluctuating wind pressures on double-skin facades of high-rise building with rectangular shape[J]. Advanced Engineering Sciences, 2009,41(5):75-81.
张敏,楼文娟.矩形建筑双幕墙结构风压脉动的非高斯性及峰值因子[J].工程科学与技术,2009,41(5):75-81. DOI：

Zhang Min, Lou Wenjuan. Non-Gaussian features and peak factor of fluctuating wind pressures on double-skin facades of high-rise building with rectangular shape[J]. Advanced Engineering Sciences, 2009,41(5):75-81. DOI：

摘要

中文摘要: 借助刚性模型风洞动态同步测压试验，对矩形建筑双幕墙的内幕墙和外幕墙的脉动风压的非高斯统计特性进行了研究。根据测点风压时程及其概率密度分布，并基于测点风压的第三、四阶矩统计量对风压的非高斯特性进行描述，结合峰值因子的取值，给出划分高斯和非高斯区域的标准，在此基础上对矩形建筑双幕墙的内幕墙和外幕墙进行了分区，矩形建筑双幕墙的风压脉动为非高斯性的区域主要为内幕墙的拐角分离流区域，在幕墙结构设计时，应提高该区域的风压峰值因子的取值，而外幕墙的拐角区域的风压分布则基本符合高斯分布。

Abstract

Abstract:The non-Gaussian features of fluctuating wind pressures on double-skin facade are systematically studied by using multi-channel measurement wind tunnel tests. Based on the wind pressure sample time series and histograms

the third and fourth order statistical moments of fluctuating wind pressures are employed to obtain a description of the non-Gaussian feature. According to the value of peak factor

the criterion of the regions with non-Gaussian features is obtained

and then the regions with non-Gaussian features on the internal facade and external facade are located

which is the corner of the internal facade. Finally

the necessity of increasing pressure’s peak factor of the regions with non-Gaussian features in structural design is put forward.

关键词

双幕墙矩形建筑非高斯性峰值因子脉动风压

Keywords

double-skin facadebuilding with rectangular shapenon-Gaussian featurespeak factorfluctuating pressure

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