Large eddy simulation for effects of square opening at top on wind load of super tall building

PDF(3783 KB)

Journal of Vibration and Shock ›› 2023, Vol. 42 ›› Issue (17) : 52-60.

ZHENG Deqian1, WU Junhao1, MA Wenyong2, MA Zhimin3, PAN Junjun4

Author information +

History +

Abstract

Top opening is an effective aerodynamic optimization measure for super high-rise buildings, while the influence mechanism of top opening style on the local and overall wind load remains to be investigated. By adopting the spatial-averaged large eddy simulation method, the effects of top opening style on the wind load of three-dimensional square section super high-rise building immersed in turbulence boundary layer, were numerically studied. The inflow wind was consistent with the direction of the opening for all cases, including cylinder model without top opening (i.e., the standard cylinder), the opened and the closed square top opening cylinder models. Firstly, effectiveness of the present numerical simulation method was verified by comparison of the simulated wind pressure coefficients on the closed square top opening model with those of wind tunnel test. Then, distribution characteristics of the mean and fluctuating wind pressure on the building model surface were comparatively analyzed among results of the above cylinder models with & without top opening and the opening style. The influence mechanism of the top opening was discussed from the perspective of the simulated flow field. The results show that the hole at the top affects the position of the flow separation point, the diffusion angle of shear flow and the phenomenon of flow reattachment. The narrow tube effect at the hole makes the wind speed increase sharply, especially the closed hole. The accelerated air flow in the hole disturbs the large-scale vortex, which leads to the more dispersed energy of the vortex, thus weakening the wind pressure on the surface of the structure; At the edge of the top opening, there is a large wind pressure value due to flow separation, and there is an obvious edge effect on the leeward side of the open opening; The effect of closed opening on reducing local wind pressure at the opening is better than that of open opening.

Key words

super high-rise building / top square opening / large eddy simulation / wind load / flow field mechanism

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

ZHENG Deqian1, WU Junhao1, MA Wenyong2, MA Zhimin3, PAN Junjun4. Large eddy simulation for effects of square opening at top on wind load of super tall building[J]. Journal of Vibration and Shock, 2023, 42(17): 52-60

References

[1] 全涌，姚博，顾明. 高层建筑结构抗风可靠性研究进展[J]. 同济大学学报：自然科学版, 2015, 43(6): 807-815.
QUAN Yong, YAO Bo, GU Ming. Research progress of wind reliability of high-rise buildings [J]. Journal of Tongji University ：Natural Science, 2015, 43(6): 807-815.
[2] 赵昕，林祯杉，孙华华. 超高层建筑形态空气动力学优化方法应用综述[J]. 结构工程师, 2011, 27(3): 133-139.
ZHAO Xin, LIN Zhenshan, SUN Huahua. Aerodynamic modification methods for high-rise buildings [J]. Structural Engineers, 2011, 27(3): 133-139.
[3] 顾明，张正维，全涌. 降低超高层建筑横风向响应气动措施研究进展[J]. 同济大学学报：自然科学版, 2013, 41(3): 317-323.
GU Ming, ZHANG Zhengwei, QUAN Yong. Aerodynamic measures for mitigation of across-wind responses of super tall buildings: State of the art [J]. Journal of Tongji University ：Natural Science, 2013, 41(3): 317-323.
[4] Tamura T, Miyagi T. The effect of turbulence on aerodynamic forces on a square cylinder with various corner shapes [J]. Journal of Wind Engineering and Industrial Aerodynamics, 1999, 83(1–3): 135-145.
[5] Kareem A, Kijewski T, Tamura Y. Mitigation of motions of tall buildings with specific examples of recent applications [J]. Wind and Structures An International Journal, 1999, 2(3): 201-251.
[6] 张正维，全涌，顾明，等. 斜切角与圆角对方形截面高层建筑气动力系数的影响研究[J]. 土木工程学报, 2013, 46(9): 12-20.
ZHANG Zhengwei, QUAN Yong, GU Ming, et al. Effects of corner chamfering and rounding modification on
aerodynamic coefficients of square tall buildings [J]. China Civil Engineering Journal, 2013, 46(9): 12-20.
[7] 张正维，全涌，顾明，等. 凹角对方形截面高层建筑基底气动力系数的影响研究[J]. 土木工程学报, 2013, 46(7): 58-65.
ZHANG Zhengwei, QUAN Yong, GU Ming, et al. Effects of corner recession modification on aerodynamic coefficients of square high-rise buildings [J]. China Civil Engineering Journal, 2013, 46(7): 58-65.
[8] 王磊，梁枢果，王泽康，等. 超高层建筑横风向风振局部气动外形优化[J]. 浙江大学学报：工学版, 2016, 50(7): 1239-1246.
WANG Lei, LIANG Shuguo, WANG Zekang, et al. Effect of aerodynamic optimization to across-wind response of super tall buildings [J]. Journal of Zhejiang University ：Engineering Edition, 2016, 50(7): 1239-1246.
[9] 谢壮宁，李佳. 强风作用下楔形外形超高层建筑横风效应试验研究[J]. 建筑结构学报, 2011, 32(12): 118-126
XIE Zhuangning, LI Jia. Experimental research on cross wind effect on tapered super-tall buildings under action of strong wind [J]. Journal of Building Structures, 2011, 32(12): 118-126.
[10] 李波，杨庆山，田玉基，等. 锥形超高层建筑脉动风荷载特性[J]. 建筑结构学报, 2010, 31(10): 8-16.
LI Bo, YANG Qingshan, TIAN Yuji, et al. Characteristics of turbulent wind load of tapered super-tall building [J]. Journal of Building Structures, 2010, 31(10): 8-16.
[11] 张正维，全涌，顾明，等. 锥度化方形截面高层建筑的气动力特性[J]. 西南交通大学学报, 2014, 49(5): 772-778.
ZHANG Zhengwei, QUAN Yong, GU Ming, et al. Aerodynamic characteristics of tapered tall buildings with square section [J]. Journal of Southwest Jiaotong University, 2014, 49(5): 772-778.
[12] 王春刚，张耀春，秦云. 巨型高层开洞建筑刚性模型风洞试验研究[J]. 哈尔滨工业大学学报, 2004(11): 1431-1434+1526.
WANG Chungang, ZHANG Yaochun, QIN Yun. Wind tunnel tests study on mega tall buildings with opening rigidity models [J]. Journal of Harbin Institute of Technology, 2004(11): 1431-1434+1526.
[13] 张耀春，秦云，王春刚. 洞口设置对高层建筑静力风荷载的影响研究[J]. 建筑结构学报, 2004(4): 112-117+123.
ZHANG Yaochun, QIN Yun, WANG Chungang. Research on the influence of openings to static wind load of high-rise buildings [J]. Journal of Building Structure, 2004(4): 112-117+123.
[14] 张耀春，倪振华，王春刚，等. 高层开洞建筑测压风洞试验[J]. 建筑结构, 2006(2): 86-90.
ZHANG Yaochun, NI Zhenhua, WANG Chungang, et al. Wind tunnel measuring pressure tests of tall buildings with opening [J]. Building Structure, 2006(2): 86-90.
[15] 李永贵，李秋胜，戴益民. 开洞高层建筑风荷载的试验研究[J]. 振动与冲击, 2015, 34(11): 63-67.
Li Yonggui, Li Qiusheng, Dai Yimin. Tests for wind load of tall buildings with openings [J]. Journal of Vibration and Shock, 2015, 34(11): 63-67.
[16] 李永贵，李秋胜. 开洞高层建筑风压分布特性试验研究[J]. 建筑结构, 2015, 45(13): 79-85.
Li Yonggui, Li Qiusheng. Experimental study on wind pressure distribution characteristics of the tall building with openings [J]. Building Structure, 2015, 45(13): 79-85.
[17] Li Y G, Zhang M Y, Li Y, et al. Experimental study on wind load characteristics of high-rise buildings with opening [J]. Struct Design Tall Spec Build, 2020, 29(9): 1734-1748.
[18] 陈伏彬，李秋胜. 大开洞对高层建筑风效应的影响研究[J]. 湖南大学学报：自然科学版, 2015, 42(3): 84-88.
CHEN Fubin, LI Qiusheng. Investigation of the influence of openings on the wind effect of tall buildings [J]. Journal of Hunan University ：Natural Sciences, 2015, 42(3): 84-88.
[19] Chen F B, Wang X L, Zhao Y, et al. Study of wind loads and wind speed amplifications on high-rise building with opening by numerical simulation and wind tunnel test [J]. Advances in Civil Engineering, 2020, 2020(4): 1-24.
[20] 马文勇，周佳豪，张正维，等. 塔冠对方形超高层建筑顺风向基底弯矩的影响研究[J]. 建筑结构学报, 2021, 42(5): 40-46.
MA Wenyong, ZHOU Jiahao, ZHANG Zhe-ngwei, et al. Effects of tower crown on along-wind base moment for square super high-rise building [J]. Journal of Building Structures, 2021, 42(5): 40-46.
[21] 马文勇，周佳豪，郑德乾，等. 塔冠对方形截面超高层建筑横风向基底弯矩的影响[J]. 建筑结构学报, 2021, 42(S2): 466-472.
MA Wenyong, ZHOU Jiahao, ZHENG Deqian, et al. Effects of tower crown on across-wind base bending moment of square super high-rise buildings [J]. Journal of Building Structures, 2021, 42(S2): 466-472.
[22] 马文勇，黄铮汉，周佳豪，等. 塔冠对超高层建筑风致响应影响研究[J]. 振动与冲击, 2021, 40(11): 116-123.
MA Wenyong, HUANG Zhenghan, ZHOU Jiahao, et al. Effects of tower crown on wind-induced response of super high-rise building [J]. Journal of Vibration and Shock, 2021,40(11): 116-123.
[23] Zheng D Q, Zhang A S, Gu M. Improvement of Inflow Boundary Condition in Large Eddy Simulation of Flow Around Tall Building [J]. Engineering Applications of Computational Fluid Mechanics, 2012, 6(4): 633-647.
[24] Shur M L, Spalart P R, Strelets M K, et al. Synthetic turbulence generators for RANS-LES interfaces in zonal simulations of aerodynamic and aeroacoustic problems [J]. Flow Turbulence Combust, 2014, 93(1): 63-92.
[25] Castro H G, Paz R R. A time and space correlated turbulence synthesis method for Large Eddy Simulations[J]. Journal of Computational Physics, 2013, 235:742-763.
[26] Yu Y, Yang Y, Xie Z. A new inflow turbulence generator for large eddy simulation evaluation of wind effects on a standard high-rise building[J]. Building and Environment, 2018, 138:300-313.
[27] 中华人民共和国住房和城乡建设部. 建筑结构荷载规范：GB 50009—2012 [S]. 北京：中国建筑工业出版社， 2012.
Ministry of Housing and Urban-Rural Development of the People’s Republic of China. Load code for the design of
building structures：GB 50009—2012［S］. Beijing： China Architecture & Building Press， 2012.