Arid
DOI10.1016/j.jobe.2024.108610
A numerical study on load effects of low-rise buildings in a wind-blown sand environment
Hu, Di; Zhang, Jie; Pakzad, Rezaali; Huang, Ning
通讯作者Huang, N
来源期刊JOURNAL OF BUILDING ENGINEERING
EISSN2352-7102
出版年2024
卷号84
英文摘要The transportation process of wind-blown sand, represented by sandstorms, occurs frequently in arid and semi-arid regions. The combined action of wind and sand impact load in a wind-sand environment poses a serious threat to the safety of construction, transportation and other engineering structures. However, most of the current structural designs only considers the effect of wind, and there is little detailed research on the surface load distribution of structures caused by sand impact, which leads to uncertainty in the safety assessment of engineering structures in wind-sand areas. In this paper, low-rise buildings which are easily damaged in strong wind-sand environments are taken as the research object. A numerical model of coupling turbulent wind field and particle motion was then established, and the reliability of the numerical simulation results was verified through wind tunnel experiments. Finally, the wind-sand movement around the low-rise building model and the load distribution characteristics on the building surface are simulated under different wind speed and sand concentration conditions. The results show that the edges and corners of engineering structures are subject to more severe particle erosionabrasion. As the sand concentration increases in the flow field, the wind speed and the wind load acting on the structures weakens. Whereas the sand impact load increases with the increment of wind speed and sand concentration. The increased effect of sand particles on the total load can be considered by amplifying the wind load shape coefficient on the windward side. This study is helpful to understand the mechanism of sand wind-induced damage on low-rise buildings, and provides basic tools and a theoretical basis for the wind and wind-blown sand resistance design and performance optimization of engineering structures.
英文关键词Low-rise buildings Wind -sand load Computational fluid dynamics (CFD) Lagrangian particle tracking method Structural wind engineering
类型Article
语种英语
开放获取类型hybrid
收录类别SCI-E
WOS记录号WOS:001175417500001
WOS关键词LARGE-EDDY SIMULATION ; TECH FIELD EXPERIMENTS ; BOUNDARY-CONDITIONS ; TURBULENT-FLOW ; PRESSURE ; PARTICLES ; XINJIANG ; RAILWAY ; DES ; LES
WOS类目Construction & Building Technology ; Engineering, Civil
WOS研究方向Construction & Building Technology ; Engineering
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/404398
推荐引用方式
GB/T 7714
Hu, Di,Zhang, Jie,Pakzad, Rezaali,et al. A numerical study on load effects of low-rise buildings in a wind-blown sand environment[J],2024,84.
APA Hu, Di,Zhang, Jie,Pakzad, Rezaali,&Huang, Ning.(2024).A numerical study on load effects of low-rise buildings in a wind-blown sand environment.JOURNAL OF BUILDING ENGINEERING,84.
MLA Hu, Di,et al."A numerical study on load effects of low-rise buildings in a wind-blown sand environment".JOURNAL OF BUILDING ENGINEERING 84(2024).
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