[1]薛晓锋,刘健新..斜拉索参数共振分析及控制[J].郑州大学学报(工学版),2009,30(03):26-29.
　XUE Xiaofeng,LIU Jianxin.Cable-stayed Parameter Resonance Analysis and Control[J].Journal of Zhengzhou University (Engineering Science),2009,30(03):26-29.
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斜拉索参数共振分析及控制()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
30
期数:
2009年03期
页码:
26-29
栏目:
出版日期:
1900-01-01

文章信息/Info

Title:
Cable-stayed Parameter Resonance Analysis and Control
作者:
薛晓锋; 刘健新.
长安大学,桥梁与隧道陕西省重点实验室,陕西,西安,710064, 长安大学,桥梁与隧道陕西省重点实验室,陕西,西安,710064
Author(s):
XUE Xiaofeng; LIU Jianxin
(Key Laboratory for Bridge and Tunnel of Shaanxi Province，Chang’an University，Xi’an 710064，China
关键词:
斜拉索;  基频;  参数振动;  振动控制;  黏性剪切型阻尼器
Keywords:
cables;  fundamental frequency;  parameter vibration;  vibration control;  Viscous shear type damper
文献标志码:
A
摘要:
针对斜拉桥拉索的参数振动问题,结合工程实例,采用4种不同的计算公式计算了斜拉索的基频,通过分析比较,推荐采用考虑垂度的常用基频计算公式进行斜拉索的参数共振分析.分析结果表明,黄浦桥的中长斜拉索可能会发生参数共振.采用的黏性剪切型外置式阻尼器可以给斜拉索提供足够的附加阻尼,使拉索各受控振型的对数衰减率均达到0.03以上.
Abstract:
Aiming at the parametric vibration problem of cable-stayed cables, combined with engineering examples, four different calculation formulas were used to calculate the fundamental frequency of cables, and through analysis and comparison, it is recommended to use the commonly used fundamental frequency calculation formula considering sag to analyze the parameter resonance of cables. The analysis results show that parametric resonance may occur in the medium and long cable-stayed cables of Huangpu Bridge. The viscous shear type external damper can provide sufficient additional damping for the cable, so that the logarithmic attenuation rate of each controlled mode shape of the cable reaches more than 4.0.
更新日期/Last Update: 1900-01-01