Please wait a minute...
浙江大学学报(工学版)
J4  2012, Vol. 46 Issue (4): 691-697    DOI: 10.3785/j.issn.1008-973X.2012.04.017
    
Peak factor of non-Gaussian pressure process on complex
super-tall building
LIN Wei1，2, LOU Wen-juan1, SHENTU Tuan-bing3, HUANG Ming-feng1
1. Institute of Structural Engineering, Zhejiang University, Hangzhou 310058, China；2. The Architectural
Design and Research Institute of Zhejiang University, Hangzhou 310027, China; 3. Design Institute of
Landscape and Architecture China National Academy of Fine Art, Hangzhou 310006, China
Download:   PDF(0KB) HTML
Export: BibTeX | EndNote (RIS)      

Abstract  

Peak factors of non-Gaussian pressure process was investigated by taking a complex super-tall building with a boot-like shape for example in order to evaluate the design pressure coefficients on building surface more properly. The third and the fourth order statistical moments of wind pressure coefficients were analyzed based on the wind tunnel test. The non-Gaussian characteristics of wind-induced pressures on the complex building were systematically analyzed. The traditional peak factor method based on a zero-crossing rate, the improved peak factor method, the Sadek-Simiu method and the improved Gumbel method were employed to estimate the peak factors of wind-induced pressures. A new skewness-parameter non-Gaussian peak factor method was developed based on the improved peak factor method in order to overcome the shortcomings of the improved peak factor method. The applicability of various methods was discussed and compared to each other. Results show that the improved peak factor method is not applicable for some pressure processes with kurtosis smaller than three. Results of the proposed method accorded well with that of the Sadek-Simiu method.

Published: 17 May 2012
CLC:  TU 411  
  TU 472.5  
Service
E-mail this article
Add to my bookshelf
Add to citation manager
E-mail Alert
RSS
Articles by authors
Cite this article:

LIN Wei, LOU Wen-juan, SHENTU Tuan-bing, HUANG Ming-feng. Peak factor of non-Gaussian pressure process on complex
super-tall building. J4, 2012, 46(4): 691-697.

URL:

http://www.zjujournals.com/eng/10.3785/j.issn.1008-973X.2012.04.017     OR     http://www.zjujournals.com/eng/Y2012/V46/I4/691


高层建筑脉动风压的非高斯峰值因子方法

为了更好地确定建筑表面的设计极值风压,以具有“靴型”造型的复杂超高层建筑为例,研究非高斯峰值因子的计算方法.在风洞试验的基础上对各风向角下的风压系数时程数据进行三阶、四阶矩统计量分析,研究该复杂超高层建筑表面风压的非高斯分布特性.分别通过基于零穿越率的峰值因子法、改进峰值因子法、SadekSimiu法和改进Gumbel法对各风向角下风压数据的峰值因子进行估计,并在改进峰值因子法的基础上提出偏度非高斯峰值因子法.对各种方法的适用性及计算结果进行对比分析表明,改进峰值因子法在峰度小于3的情况下不适用；偏度非高斯峰值因子法与SadekSimiu法相比,两者的计算结果十分吻合.

［1］ KUMAR K S, STATHOPOULOS T. Wind loads on low building roofs: a stochastic perspective ［J］. Journal of Structural Engineering, 2000, 126(8): 944-956.
［2］ KUMAR K S, STATHOPOULOS T. Synthesis of nonGaussian wind pressure time series on low building roofs ［J］. Journal of Structural Engineering, 1999, 21(12): 1086-1100.
［3］ 张敏,楼文娟.矩形建筑双幕墙结构风压脉动的非高斯性及峰值因子［J］.四川大学学报：工程科学版, 2009, 41(5): 75-81.
ZHANG Min, LOU Wenjuan. NonGaussian features and factor of fluctuating wind pressure on doubleskin facades of highrise building with rectangular shape ［J］. Journal of Sichuan University: Engineering Science Edition, 2009, 41(5): 75-81.
［4］ GIOFRE M, GUSELLA V, GRIGORIU M. NonGaussian wind pressure on prismatic buildings. I: stochastic field ［J］. Journal of Structural Engineering, 2001, 127 (9): 981-989.
［5］ GIOFRE M, GUSELLA V, GRIGORIU M. NonGaussian wind pressure on prismatic buildings. II: numerical simulation ［J］. Journal of Structural Engineering, 2001, 127(9): 990-995.
［6］ DAVENPORT A G.Note on the distribution of the largest value of a random function with application to gust loading ［J］. Proceedings of the Institution of Civil Engineers, 1964, 28(2): 187-196.
［7］ KAREEM A, ZHAO J. Analysis of nonGaussian surge response of tension leg platforms under wind loads ［J］. Journal of Offshore Mechanics and Arctic Engineering, 1994, 116(3): 137-144.
［8］ KWON D, KAREEM A. Peak factor for nonGaussian processes revisited ［C］∥Proceedings of the 7th AsiaPacific Conference on Wind Engineering. Taipei: ［s.n.］, 2009.
［9］ SADEK F, SIMIU E. Peak nonGaussian wind effects for databaseassisted lowrise building design ［J］. Journal of Engineering Mechanics, 2002, 128(5): 530-539.
［10］ GRIGORIU M. Applied nonGaussian processes ［M］. Englewood Cliffs, NJ: Prentice Hall, 1995: 35-58.
［11］ 全涌,顾明,陈斌,等.非高斯风压的极值计算方法［J］. 力学学报, 2010, 42(3): 560-566.
QUAN Yong, GU Ming, CHEN Bin, et al. Study on the extreme value estimating method of nonGaussian wind pressure ［J］. Chinese Journal of Theoretical and Applied Mechanics, 2010, 42(3): 560-566.
［12］ 埃米尔希缪,罗伯特·H·斯坎伦. 风对结构的作用：风工程导论［M］.刘尚培,项海帆,谢霁明,译. 上海：同济大学出版社,1992: 191-215.
［13］ 徐华舫. 空气动力学基础(上册)［M］. 北京：北京航空学院出版社,1987: 94-100.
［14］ 邱天爽,张旭秀,李小兵,等.统计信号处理：非高斯信号处理及其应用［M］.北京:电子工业出版社,2004: 114-119.
［15］ WINTERSTEIN S R. Nonlinear vibration models for extremes and fatigue ［J］. Journal of Engineering Mechanics, 1988, 114(10): 1772-1790.
［16］ GRIGORIU M. Crossing of nonGaussian translation process ［J］. Journal of Engineering Mechanics, 1984, 110(4): 610-620.
［17］ HUANG M F, CHAN C M, KWOK K, et al. A peak factor for predicting nonGaussian peak resultant response of windexcited tall buildings ［C］∥Proceedings of the 7th AsiaPacific Conference on Wind Engineering. Taipei: ［s.n.］, 2009.
[1] LIU Chang-dian, SUN Hong-yue, KANG Jian-wei, Du Li-li. Experimental investigation of seepage barrier effect by air-inflation in soil[J]. J4, 2014, 48(2): 236-241.
[2] KE Han,WANG Wen-fang, WEI Chang-chun, CHEN Yun-min, ZHAN Liang-tong. Experimental study on saturated hydraulic conductivity of MSW under different conditions[J]. J4, 2013, 47(7): 1164-1170.
[3] YU Zhao-sheng, WANG Yu, SHAO Xue-ming,WU Teng-hu. Numerical studies on effects of neutrally buoyant large particles
on turbulent channel flow[J]. J4, 2013, 47(1): 109-115.
[4] WANG Lin-tao, GONG Guo-fang, SHI Hu, LIU Huai-yin. Ground surface deformation control based on chamber
pressure direct feedback[J]. J4, 2012, 46(7): 1182-1188.
[5] LIU Yong-li, SUN Hong-yue, YU Yang, ZHAN Wei,SHANG Yue-quan. Determining landslide thrust on anti-sliding pile by
BOTDR monitoring technology[J]. J4, 2012, 46(5): 798-803.
[6] LIU Yong-li, SUN Hong-yue, YU Yang, ZHAN Wei, SHANG Yue-quan. BOTDR monitoring analysis of anti-sliding pile internal force[J]. J4, 2012, 46(2): 243-249.
[7] XU Ri-qing, ZHANG Jun, ZHU Jian-feng, WANG Xing-chen. Modified Duncan-Chang model considering disturbance[J]. J4, 2012, 46(1): 1-7.
[8] ZHOU Jian, ZHENG Hong-bin, WEN Xiao-gui, GUAN Lin-bo, DENG Yi-liang. Deformation of intact soft clay under principal stress rotation
with effect of intermediate principal stress[J]. J4, 2011, 45(12): 2134-2141.
[9] XUE Wen, JIN Wei-liang, YOKOTA Hiroshi. Chloride penetrating under co-effects of initial curing and
exposure conditions[J]. J4, 2011, 45(8): 1416-1422.
[10] CHEN Gui-feng, MA Xiao-wei, WU Jian-hai, MA Qiao-yun, XUE Jing-jing, HAO Qiu-yan. Effect of rapid thermal process on oxygen precipitates behavior in
silicon irradiated by high energy particles[J]. J4, 2011, 45(5): 928-933.
[11] CHEN Guo-hong, XIE Kang-he, CHENG Yong-feng, XU Yan. Analytical solution for consolidation of sand-drained ground considering
variation of permeability coefficient in smeared zone[J]. J4, 2011, 45(4): 665-670.
[12] WANG Yan, LI Hai-feng, XU Xi-ping. The light-pipe illumination system design for double-lamp projector[J]. J4, 2011, 45(2): 382-386.
[13] SHI Hu, GONG Guo-fang, YANG Hua-yong, WANG Hui. Determination of thrust force for shield tunneling machine[J]. J4, 2011, 45(1): 126-131.
[14] SU Feng, JIANG Ye, CA Yong-Chang. Finite element analysis of steel beam and concretefilled circular column joints bearing capacity[J]. J4, 2010, 44(10): 1876-1882.
[15] SHU Dao-Jian. Unloading effect and rapture zone distribution of columnar joints cavern[J]. J4, 2010, 44(10): 1967-1973.