A method to estimate peak pressures on low-rise building models based on quasi-steady theory and partial turbulence analysis
學年 110
學期 1
出版（發表）日期 2021-11-01
作品名稱 A method to estimate peak pressures on low-rise building models based on quasi-steady theory and partial turbulence analysis
作品名稱（其他語言）
著者 Yitian Guo; Chieh-Hsun Wu; Gregory A. Kopp
單位
出版者
著錄名稱、卷期、頁數 Journal of Wind Engineering and Industrial Aerodynamics 218, 104785
摘要 A new method for estimating peak area-averaged pressure coefficients on the roof of a low-rise building model is developed. The method relies on the well-known quasi-steady vector model to account for the large-scale, low-frequency fluctuations of the upstream wind. The novel approach is to account for small-scale and body-generated turbulence effects using a stochastic model. Wind tunnel data for a 1/50-scale low-rise building model for six different upstream turbulence conditions are used for the analysis. The fluctuating pressure component induced by the small-scale and body-generated turbulence is obtained by subtracting the quasi-static pressure component from the original pressure signal. It is observed that the small-scale pressure component is highly dependent on turbulence level of the upstream flow, such that normalization by the small-scale components of the upstream turbulence kinetic energy leads to a self-similar distribution. A Monte Carlo simulation was used to combine the small-scale and quasi-steady pressure components. The new model provides good predictions of peak area-averaged pressure coefficients that cannot be captured by the quasi-steady approach.
關鍵字 Building aerodynamics;Wind loads;Peak pressure coefficients;Partial turbulence simulation;Quasi-steady theory;Low-rise buildings
語言 en
ISSN 0167-6105; 1872-8197
期刊性質 國外
收錄於 SCI
產學合作
通訊作者
審稿制度 否
國別 NLD
公開徵稿
出版型式 ,電子版
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/121956 )