Extreme value of wind-induced transient internal pressure of buildings suffering sudden opening

PDF(646 KB)

Journal of Vibration and Shock ›› 2017, Vol. 36 ›› Issue (9) : 63-67.

YU Xianfeng1,DUAN Min2,XIE Zhuangning1

Author information +

History +

Abstract

Peak values of wind-induced transient internal pressure response were studied in detail when a structure’s doors/windows suddenly were broken based on the classical governing equation of internal pressure.The effects of opening time on the peak transient internal pressure were analyzed.The estimated method for extreme value of transient internal pressure of buildings suffering sudden opening was presented,it was compared with the accurate calculation method.The results showed that the larger the external pressure when a building’s doors/windows suddenly open,the larger the peak value of the transient internal pressure; however,there is a time lag between the maximum external pressure and the peak transient internal pressure; an amplification factor (G=1.17) can be used to describe the ratio of the extreme value of transient internal pressure to the peak internal pressure response when the external pressure reaches its maximum value; the presented method can be effectively used to estimate the extreme value of transient internal pressure of a building suffering sudden opening.

Key words

overshooting effect / transient internal pressure / time lag / amplification factor / wind tunnel test

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

YU Xianfeng1,DUAN Min2,XIE Zhuangning1. Extreme value of wind-induced transient internal pressure of buildings suffering sudden opening[J]. Journal of Vibration and Shock, 2017, 36(9): 63-67

References

[1] 黄鹏, 陶玲, 全涌等. 浙江省沿海地区农村房屋抗风情况调研[J]. 灾害学, 2010, 25(4): 90-95.
Huang Peng, Tao Ling, Quan Yong et al. Investigation of wind resistance performance of rural houses in coastal areas of Zhejiang province [J]. Journal of Catastrophology, 2010, 25(4): 90-95.
[2] Sharma R N, Richards P J. The effect of roof flexibility on internal pressure fluctuations [J]. Journal of Wind Engineering and Industrial Aerodynamics, 1997, 72(1-3): 175-186.
[3] Yu S C, Lou W J, Sun B N. Wind-induced internal pressure response for structure with single windward opening and background leakage [J]. Journal of Zhejiang University - Science A, 2008, 9(3): 313-321.
[4] Yu X F, Quan Y, Gu M. Responses of wind-induced internal pressure in a two-compartment building with a dominant opening and background porosity Part 1: Theoretical formulation and experimental verification [J]. Journal of Central South University, 2012, 19(10): 2940-2948.
[5] Sabareesh G R, Matsui M, Tamura Y. Characteristics of internal pressures and net local roof wind forces on a building exposed to a tornado-like vortex [J]. Journal of Wind Engineering and Industrial Aerodynamics, 2013, 112: 52-57.
[6] Sharma R N, Mason S, Driver P. Scaling methods for wind tunnel modelling of building internal pressures induced through openings [J]. Wind and Structures, 2010, 13(4): 363-374.
[7] Oh J H, Kopp G A, Inculet D R. The UWO contribution to the NIST aerodynamic database for wind loads on low buildings: Part 3. Internal pressures [J]. Journal of Wind Engineering and Industrial Aerodynamics, 2007, 95(8): 755-779.
[8] Stathopoulos T, Luchian H D. Transient wind-induced internal pressures [J]. Journal of Engineering Mechanics, 1989, 115(7): 1501-1514.
[9] 段旻, 谢壮宁, 石碧青. 低矮房屋瞬态内压的风洞试验研究 [J]. 土木工程学报, 2012, 45(7): 10-16.
Duan Min, Xie Zhuangning, Shi Biqing. A wind tunnel study of the transient internal pressure of a low rise building [J]. China Civil Engineering Journal, 2012, 45(7): 10-16.
[10] Vickery B J, Bloxham C. Internal pressure dynamics with a dominant opening [J]. Journal of Wind Engineering and Industrial Aerodynamics, 1992, 41-44: 193-204.
[11] Shinozuka M, Jan C M. Digital simulation of random processes and its applications [J]. Journal of Sound and Vibration, 1972, 25(1): 111-128.
[12] Yu X F, Xie Z N. Interference effects on wind pressure distribuiton for high-rise buildings [C]. in The 14th international conference on Wind Eingeering. 2015, Porto Alegre, Brazil.