Approximation of fluctuating pressure cross spectra of dome-like roofs under turbulent flow

doi:10.1080/02533839.2018.1530953

淡江大學機構典藏 > 工學院 > 土木工程學系暨研究所 > 期刊論文 > Item 987654321/116017

jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/116017

题名:	Approximation of fluctuating pressure cross spectra of dome-like roofs under turbulent flow
作者:	Lo, Yuan-Lung;Lin, Hsiang-Ling
关键词:	Hemispherical dome;wind tunnel test;pressure cross-spectrum
日期:	2018-11-05
上传时间:	2019-03-16 12:12:01 (UTC+8)
摘要:	Large span roof structures have been widely adopted for their good performance in multiple functionalities and innovative designs. However, because of their light weight, wind-resistant design is more urgent than earthquake-resistant design. And further, their long span geometry often results in a weak spatial correlation in pressure distributions and hence makes the estimation of wind loads a difficult task. Spectrum characteristics of wind pressures have been mentioned in several publications; however, there is still little discussion of cross-spectrum characteristics. In this paper, cross-spectra of fluctuating wind pressures on various dome-like roofs are investigated under a suburban terrain flow. By examining separately the root-coherence function and the phase function, approximation models of both functions are proposed in terms of the rise/span ratio based on certain simple but efficient assumptions. Once the two functions are simulated in good agreement with experimental results, the cross-spectra, or the co-coherence function, can be simulated by simply combining the root-coherence function and the phase function.
關聯:	Journal of the Chinese Institute of Engineers 41(7), p.579-589
DOI:	10.1080/02533839.2018.1530953
显示于类别:	[土木工程學系暨研究所] 期刊論文

文件中的档案:

档案	描述	大小	格式	浏览次数
index.html		0Kb	HTML	142	检视/开启

在機構典藏中所有的数据项都受到原著作权保护.

TAIR相关文章

数据加载中.....