[1]侯爱波,葛楠,周锡元..高层建筑顺风向风振动力反应时程分析[J].郑州大学学报(工学版),2006,27(02):14-17.[doi:10.3969/j.issn.1671-6833.2006.02.004]
　HOU Aibo,Ge Nan,Zhou Xiyuan.Time history analysis of downwind vibration response of high-rise buildings[J].Journal of Zhengzhou University (Engineering Science),2006,27(02):14-17.[doi:10.3969/j.issn.1671-6833.2006.02.004]
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高层建筑顺风向风振动力反应时程分析()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
27卷
期数:
2006年02期
页码:
14-17
栏目:
出版日期:
1900-01-01

文章信息/Info

Title:
Time history analysis of downwind vibration response of high-rise buildings
作者:
侯爱波; 葛楠; 周锡元.
北京工业大学抗震减灾研究所,北京,100022, 中国建筑科学研究院抗震研究所,北京,100013
Author(s):
HOU Aibo; Ge Nan; Zhou Xiyuan
关键词:
脉动风压;  谱密度函数;  加速度
Keywords:
DOI:
10.3969/j.issn.1671-6833.2006.02.004
文献标志码:
A
摘要:
采用了谐波叠加法模拟作用在结构上的顺风向脉动风压,同时为了能反映作用在迎风面不同点上脉动风压的相关特性,首先生成脉动风速互谱密度矩阵,然后采用三角分解法进行分解,再以此生成脉动风压作为输入脉动风荷载,采用Newmark方法计算结构的动力反应时程.对两栋高层建筑的风振反应时程计算结果表明,本方法得到的结构动力反应均方根值与建筑结构荷载规范中采用的谱分析结果有较好的吻合性;风振反应以共振反应为主,非共振反应值占次要的部分.这与谱分析法得出的结论也是一致的,说明了利用谐波叠加法模拟脉动风压时程的准确性.这对于正确估算结构的风振反应值,为高层建筑风振控制措施设计提供参考依据是有一定意义的.
Abstract:
The harmonic superposition method is used to simulate the downwind pulsating wind pressure acting on the structure, and in order to reflect the relevant characteristics of the pulsating wind pressure acting on different points on the windward surface, the pulsating wind velocity mutual spectral density matrix is first generated, and then the triangulation decomposition method is used to decompose, and then the pulsating wind pressure is generated as the input pulsating wind load, and the dynamic response time history of the structure is calculated by Newmark method. The calculation results of the wind vibration reaction time history of the two high-rise buildings show that the root mean square value of the structural dynamic response obtained by this method is in good agreement with the spectral analysis results used in the building structural load code. The wind vibration reaction is mainly resonant reaction, and the non-resonance reaction value accounts for the secondary part. This is also consistent with the conclusion reached by the spectral analysis method, which shows the accuracy of using the harmonic superposition method to simulate the time history of pulsating wind pressure. This is of great significance for correctly estimating the wind vibration response value of the structure and providing a reference for the design of wind vibration control measures for high-rise buildings.

更新日期/Last Update: 1900-01-01