[1]朱佳宁,徐亚洲,李 旭.超大型冷却塔随机风振响应分析[J].西安建筑科技大学学报:自然科学版,2013,45(06):808-812.[doi:10.15986/j.1006-7930.2013.06.009]
　ZHU Jia-ning,XU Ya-zhou,LI Xu.Stochastic wind-induced dynamic response analysis of large hyperbolic cooling tower[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2013,45(06):808-812.[doi:10.15986/j.1006-7930.2013.06.009]
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超大型冷却塔随机风振响应分析()
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西安建筑科技大学学报:自然科学版[ISSN:1006-7930/CN:61-1295/TU]

卷:
45
期数:
2013年06期
页码:
808-812
栏目:
出版日期:
2013-12-31

文章信息/Info

Title:
Stochastic wind-induced dynamic response analysis of large hyperbolic cooling tower
文章编号:
1006-7930(2013)06-0808-05
作者:
朱佳宁; 徐亚洲; 李 旭
(西安建筑科技大学土木工程学院,陕西 西安 710055)
Author(s):
ZHU Jia-ning;  XU Ya-zhou;  LI Xu
(School of Civil Engineering, Xian Univ. of Arch.& Tech., Xian 710055,China)
关键词:
冷却塔; 虚拟激励法; 风振系数
Keywords:
large hyperbolic cooling tower;  PEM;  wind vibration coefficient
分类号:
TU 347
DOI:
10.15986/j.1006-7930.2013.06.009
文献标志码:
A
摘要:
针对某超大冷却塔(250m高),通过虚拟激励法对钢筋混凝土双曲冷却塔在风载作用下的随机动力响应进行了分析,获得了风振响应的分布规律,并计算了位移风振系数.分析表明冷却塔前100阶振型频率集中在0.5~2.5Hz,均以环向谐波振动的模态形式出现.低阶振型的模态响应对结构位移风振响应的贡献最大;平均位移在喉部附近0°迎风角位置达到最大值.超大型冷却塔的位移风振系数在塔中间部分较小,底部和顶部较大.
Abstract:
In this paper, the stochastic wind-induced dynamic response analysis of a large hyperbolic cooling-tower(250meters higher)is conducted on the basis of the secondary development of the Pseudo Excitation Method(PEM),receiving a distribution of wind-induced response and calculating the modal and the displacement wind vibration coefficient of the cooling tower. The results show that the bottom and throat of tower are the higher parts of displacement wind vibration coefficient, which should be in focus

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2013-03-04 修改稿日期:2013-11-15
基金项目:高等学校博士学科点专项科研基金资助项目(20126120120011);西安市科技计划项目(CX12187⑥)
作者简介:朱佳宁(1975-),男,山东济宁人,博士,讲师,主要从事工程结构抗震、组合结构研究.
更新日期/Last Update: 2015-10-05