Large Eddy Simulation Investigation of Wind Loads and Interference Effects on Ultra High-rise Connecting Buildings

被引:0
|
作者
Ke S. [1 ]
Wang H. [1 ]
机构
[1] Department of Civil Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing
基金
中国国家自然科学基金; 中国博士后科学基金;
关键词
Interference effect; Large eddy simulation; Numerical wind tunnel simulation; Ultra high-rise connecting buildings; Wind load;
D O I
10.16339/j.cnki.hdxbzkb.2017.05.007
中图分类号
学科分类号
摘要
The main building of three-tower ultra high-rise connecting buildings is significantly interfered by the podiums and annexes. Large eddy simulation was adopted for three-tower ultra-high-rise connecting buildings. The shape coefficients of the main building were calculated, and the computational results were compared with the wind tunnel test results. The wind fields, wind pressure coefficients, and the interference effects between tall buildings were discussed. It is found that the large eddy simulation was a feasible way, and the turbulent wind velocity was higher in condition with single building. The field of flow separation is more lasting in condition with three buildings. The interference effect might have beneficial sheltering effect on the wind-induced vibration response of the main building when the main building was in the upstream. On the contrary, the wind pressure of main building might have been magnified when the main building was in the downstream. © 2017, Editorial Department of Journal of Hunan University. All right reserved.
引用
收藏
页码:53 / 62
页数:9
相关论文
共 13 条
  • [1] Yu X., Xie Z., Gu M., Research progress of wind-induced interference effects on tall buildings, Journal of BuildingStructures, 36, 3, pp. 1-11, (2015)
  • [2] Huang M.F., Chan C.M., Lou W.J., Optimal performance-based design of wind sensitive tall buildings considering uncertainties, Computers & Structures, 98, pp. 7-16, (2012)
  • [3] Zhang X., Structural Wind Engineering: Theory, Standard, Practice, pp. 126-135, (2006)
  • [4] Li Q., Chen F., Experimental study of aerolastic effect on tall building, Journal of Hunan University: Natural Sciences, 43, 1, pp. 20-28, (2016)
  • [5] Wang L., Liang S., Zou L., Et al., Study on the body shape selection of super high-rise building from the point of wind resistance, Journal of Hunan University: Natural Sciences, 40, 11, pp. 34-39, (2013)
  • [6] Zhang M., Lou W., He G., Numerical study on interference effects of wind loads about a cluster of tall buildings, Engineering Mechanics, 25, 1, pp. 179-185, (2008)
  • [7] Yang L., Tang Y., Jin X., Numerical study and tests on wind-induced mean interference effects of staggered tall buildings, Building Structure, 41, 11, pp. 125-130, (2011)
  • [8] Teng Z., He J., The effects analysis of doubletower connected structure on the wind load, Science Technology and Engineering, 11, 8, pp. 1844-1846, (2011)
  • [9] Xie H., He M., Ma R., Analyse of mean wind load of lattice tower based on CFD simulation, Journal of Central South University: Naturd Science, 41, 5, pp. 1980-1986, (2010)
  • [10] Chang C.H., Robert N., Numerical and physical modeling of bluff body flow and dispersion in urban street canyons, Journal of Wind Engineering and Industrial Aerodynamics, 89, pp. 1325-1334, (2001)