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| 矩形超高层建筑涡激共振模型与响应研究 | |
| 引用本文： | 梁枢果,吴海洋,陈政清. 矩形超高层建筑涡激共振模型与响应研究[J]. 振动工程学报, 2011, 24(3) |
| 作者姓名： | 梁枢果 吴海洋 陈政清 |
| 作者单位： | 1. 武汉大学土木建筑工程学院,湖北武汉,430072 2. 武汉大学土木建筑工程学院,湖北武汉430072;中南电力设计院,湖北武汉430071 3. 湖南大学土木工程学院,湖南长沙,410082 |
| 基金项目： | 国家自然科学基金资助项目 |
| 摘 要： | 在经验非线性模型、Vickery-Basu模型以及广义范德波尔振子模型的基础上,针对矩形超高层建筑涡激振动的"锁定"状态,提出了两种改进的广义范德波尔振子模型,即IGVPO-1和IGVPO-2,前者适用于"锁定"风速范围内任一折算风速对应的位移响应幅值的预测,后者适用于"锁定"时最大位移响应幅值的预测.最后,结合气弹模型风洞试验测试数据,实现了对两模型中气动参数的拟合.将风洞试验测量值与理论模型预测值进行比较,结果表明:所提出的这两种理论模型均具有较高的精度. |
| 关 键 词： | 高层建筑 风洞试验 涡激振动 锁定 气弹模型 |
Investigation on model and responses of vortex-induced resonances of rectangular super high-rise buildings |
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| LIANG Shu-guo,WU Hai-yang,CHEN Zheng-qing. Investigation on model and responses of vortex-induced resonances of rectangular super high-rise buildings[J]. Journal of Vibration Engineering, 2011, 24(3) | |
| Authors: | LIANG Shu-guo WU Hai-yang CHEN Zheng-qing |
| Affiliation: | LIANG Shu-guo1,WU Hai-yang1,2,CHEN Zheng-qing3(1.School of Civil & Building Engineering,Wuhan University,Wuhan 430072,China,2.Central Southern China Electric Power Design Institute,Wuhan 430071,3.School of Civil Engineering,Hunan University,Changsha 410082,China) |
| Abstract: | On the base of empirical non-lineal model,Vickery-Basu model and generalized Van der Pol oscillator model,two improved generalized Van der Pol oscillator models,i.e.IGVPO-1 and IGVPO-2,are proposed for evaluating dynamic responses of rectangular high-rise buildings when vortex-induced resonance lock-in occurs.IGVPO-1 is suitable for predicting the amplitude of displacement response at any reduced velocity during lock-in,and IGVPO-2 is suitable for predicting the maximum amplitude of displacement response wh... |
| Keywords: | high-rise buildings wind tunnel tests vortex-induced vibration lock-in aero-elastic model |
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