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[1]李寿英,曹镜韬,李寿科.考虑风速风向联合分布的双坡屋面风致疲劳研究[J].建筑科学与工程学报,2022,39(02):1-10.[doi:10.19815/j.jace.2021.02027]
 LI Shou-ying,CAO Jing-tao,LI Shou-ke.Study on Wind-induced Fatigue of Double-slope Roof Panels Considering Joint Distribution of Wind Speed and Direction[J].Journal of Architecture and Civil Engineering,2022,39(02):1-10.[doi:10.19815/j.jace.2021.02027]
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考虑风速风向联合分布的双坡屋面风致疲劳研究(PDF)
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
39卷
期数:
2022年02期
页码:
1-10
栏目:
防灾减灾工程
出版日期:
2022-03-30

文章信息/Info

Title:
Study on Wind-induced Fatigue of Double-slope Roof Panels Considering Joint Distribution of Wind Speed and Direction
文章编号:
1673-2049(2022)02-0001-10
作者:
李寿英1,曹镜韬1,李寿科2
(1. 湖南大学 风工程与桥梁工程湖南省重点实验室,湖南 长沙 410082; 2. 湖南科技大学 土木工程学院,湖南 湘潭 411201)
Author(s):
LI Shou-ying1, CAO Jing-tao1, LI Shou-ke2
(1. Key Laboratory for Wind and Bridge Engineering of Hunan Province, Hunan University, Changsha 410082, Hunan, China; 2. School of Civil Engineering, Hunan University of Science and Technology, Xiangtan 411201, Hunan, China)
关键词:
风致疲劳 风速风向联合分布 概率统计 金属屋面板 极值分布 角变量
Keywords:
wind-induced fatigue joint distribution of wind speed and direction probability statistics metal roof panel extreme value distribution angular variable
分类号:
TU312
DOI:
10.19815/j.jace.2021.02027
文献标志码:
A
摘要:
为研究风荷载作用下大跨度低矮建筑金属屋面板的疲劳损伤分布规律,以坡度为1/60的双坡屋面建筑为研究对象,基于1975~2019年间的风速风向数据,研究了双坡屋面板50年重现期的疲劳损伤累积值。采用Gumbel分布描述日极值风速分布,混合Von Mises分布描述风向分布,并用单参数Archimedean Copula函数描述二者的相关性,得到了风速风向的联合分布; 基于双坡屋面的测压风洞试验结果,考虑连续变化风速和离散风向角对疲劳寿命的影响,研究了金属屋面板的疲劳损伤累积值。结果表明:双坡屋面板疲劳损伤与主导风向、屋面位置等因素密切相关,位于主导风向处的迎风屋檐、边角等气流分离位置的疲劳损伤累积值远大于其他区域; 良态风环境下,该双坡屋面金属屋面板50年风致疲劳损伤累积值最大可达0.746,风荷载可引起迎风屋檐、边角位置金属屋面板的疲劳破坏; 对于金属屋面板而言,风致疲劳破坏是引发风揭事故的巨大隐患,应高度重视。
Abstract:
In order to study the fatigue damage distribution law of metal roofs used in long span and low buildings under wind loads, taking the double-slope roof building with a slope of 1/60 as the research object, based on the wind speed and direction data from 1975 to 2019, the fatigue damage cumulative value of the double-slope roof panel with a return period of 50 years was studied. The Gumbel distribution and the mixed Von Mises distribution were used to describe the daily extreme wind speed distribution and the wind direction distribution separately. The single-parameter Archimedean Copula function was used to describe the correlation between wind speed and wind direction, and the joint distribution of wind speed and direction was obtained. Based on the wind tunnel test results of the double-slope roof, the cumulative value of fatigue damage of the metal roof panel was studied considering the influence of continuously changing wind speed and discrete wind direction angle on the fatigue life. The results show that the fatigue damage of double-slope roof panels is closely related to factors such as the dominant wind direction and roof position. The cumulative fatigue damage in windward eaves, corners and other airflow separation locations at the dominant wind direction is much larger than that of other areas. The maximum cumulative value of 50 years wind-induced fatigue damage for the double-slope roof is 0.746 under, and wind load can cause fatigue failure of metal roof panels in windward eaves and corners. For metal roof panels, wind-induced fatigue damage is a huge hidden danger causing wind exposure accidents, which should be paid great attention to.

参考文献/References:

[1] 宣 颖,谢壮宁.大跨度金属屋面风荷载特性和抗风承载力研究进展[J].建筑结构学报,2019,40(3):41-49.
XUAN Ying,XIE Zhuang-ning.Research Progress on Wind Loads and Wind Resistance Bearing Capacity of Large Span Metal Roof Structures[J].Journal of Building Structures,2019,40(3):41-49.
[2]MAHENDRAN M.Behaviour and Design of Crest-fixed Profiled Steel Roof Claddings Under Wind Uplift[J].Engineering Structures,1994,16(5):368-376.
[3]MAHAARACHCHI D,MAHENDRAN M.A Strain Criterion for Pull-through Failures in Crest-fixed Steel Claddings[J].Engineering Structures,2009,31(2):498-506.
[4]MAHAARACHCHI D,MAHENDRAN M.Wind Uplift Strength of Trapezoidal Steel Cladding with Closely Spaced Ribs[J].Journal of Wind Engineering and Industrial Aerodynamics,2009,97(3/4):140-150.
[5]XU Y L.Fatigue Performance of Screw-fastened Light-gauge-steel Roofing Sheets[J].Journal of Structural Engineering,1995,121(3):389-398.
[6]KUMAR K S,STATHOPOULOS T.Computer Simulation of Fluctuating Wind Pressures on Low Building Roofs[J].Journal of Wind Engineering and Industrial Aerodynamics,1997,69/70/71:485-495.
[7]KUMAR K S,STATHOPOULOS T.Fatigue Analysis of Roof Cladding Under Simulated Wind Loading[J].Journal of Wind Engineering and Industrial Aerodynamics,1998,77/78:171-183.
[8]JANCAUSKAS E D,MAHENDRAN M,WALKER G R.Computer Simulation of the Fatigue Behaviour of Roof Cladding During the Passage of a Tropical Cyclone[J].Journal of Wind Engineering and Industrial Aerodynamics,1994,51(2):215-227.
[9]XU Y L.Determination of Wind-induced Fatigue Loading on Roof Cladding[J].Journal of Engineering Mechanics,1995,121(9):956-963.
[10]XU Y L.Fatigue Damage Estimation of Metal Roof Cladding Subject to Wind Loading[J].Journal of Wind Engineering and Industrial Aerodynamics,1997,72:379-388.
[11]OU T,WANG D Y,XIN Z Y,et al.Full-scale Tests on the Mechanical Behaviour of a Continuously Welded Stainless Steel Roof Under Wind Excitation[J].Thin-walled Structures,2020,150:106680.
[12]秦国鹏,张晓旭,孙 超.铝合金屋面系统抗风揭性能试验研究及数值分析[J].工业建筑,2016,46(10):169-173.
QIN Guo-peng,ZHANG Xiao-xu,SUN Chao.Experimental Research and Numerical Analysis of an Aluminum-alloy Roof System Under Wind Uplift Load[J].Industrial Construction,2016,46(10):169-173.
[13]陈 玉.直立锁边屋面系统抗风承载能力研究[D].北京:北京交通大学,2015.
CHEN Yu.Loading Bearing Capacity of the Standing Seam Roof System Under the Wind Load[D].Beijing:Beijing Jiaotong University,2015.
[14]孙 瑛,武 涛,武 岳.带抗风夹的直立锁边屋面系统抗风性能的参数研究[J].工程力学,2020,37(2):183-191.
SUN Ying,WU Tao,WU Yue.Parameter Study on Wind Resistant Performance of Standing Seam Roof System with Anti-wind Clip[J].Engineering Mechanics,2020,37(2):183-191.
[15]王钦华,顾 明.风速风向联合分布对结构风致疲劳寿命可靠性的影响[J].振动与冲击,2009,28(12):167-171,210.
WANG Qin-hua,GU Ming.Influence of Joint Distribution of Wind Speed and Wind Direction on Wind-induced Fatigue Life Reliability[J].Journal of Vibration and Shock,2009,28(12):167-171,210.
[16]LI H N,ZHENG X W,LI C.Copula-based Joint Distribution Analysis of Wind Speed and Direction[J].Journal of Engineering Mechanics,2019,145(5):04019024.
[17]JOHNSON R A,EVANS J W,GREEN D W.Some Bivariate Distributions for Modeling the Strength Properties of Lumber[J].Mechanical Systems & Signal Processing,1999,6(3):251-260.
[18]CARTA J A,BUENO C,RAMIREZ P.Statistical Modelling of Directional Wind Speeds Using Mixtures of Von Mises Distributions:Case Study[J].Energy Conversion and Management,2008,49(5):897-907.
[19]张春涛,李正良,范文亮,等.考虑风向风速联合分布的输电塔线体系风振疲劳研究[J].工程力学,2013,30(3):315-322.
ZHANG Chun-tao,LI Zheng-liang,FAN Wen-liang,et al.Study on Wind-induced Fatigue of Transmission Tower-line Coupled System Considering the Joint Distribution of Wind Speed and Wind Direction[J].Engineering Mechanics,2013,30(3):315-322.
[20]楼文娟,段志勇,庄庆华.极值风速风向的联合概率密度函数[J].浙江大学学报(工学版),2017,51(6):1057-1063.
LOU Wen-juan,DUAN Zhi-yong,ZHUANG Qing-hua.Joint Probability Density Function of Extreme Wind Speed and Direction[J].Journal of Zhejiang University(Engineering Science),2017,51(6):1057-1063.
[21]林涛涛,陈 隽,李 想,等.基于连续型风速风向联合概率分布的风致结构疲劳分析方法研究[J].振动与冲击,2014,33(12):48-52,105.
LIN Tao-tao,CHEN Jun,LI Xiang,et al.Analysis Method for Wind-induced Structural Fatigue Based on Continuous JPDF[J].Journal of Vibration and Shock,2014,33(12):48-52,105.
[22]李天元.基于Copula函数的设计洪水计算方法研究[D].武汉:武汉大学,2014.
LI Tian-yuan.Design Flood Estimation Based on Copulas[D].Wuhan:Wuhan University,2014.
[23]姚卫星.结构疲劳寿命分析[M].北京:国防工业出版社,2003.
YAO Wei-xing.Fatigue Life Prediction of Structures[M].Beijing:National Defense Industry Press,2003.

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备注/Memo

备注/Memo:
收稿日期:2021-02-11
基金项目:国家重点研发计划项目(2017YFC0703600,2017YFC0703604)
作者简介:李寿英(1977-),男,江西萍乡人,教授,博士研究生导师,工学博士,E-mail:shyli@hnu.edu.cn。
更新日期/Last Update: 2022-03-20