| 大底盘非对称塔楼结构的地震反应分析计算 |
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| 引用本文： | 许利磊.大底盘非对称塔楼结构的地震反应分析计算[J].福建建材,2009(5):80-82. |
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| 作者姓名： | 许利磊 |
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| 作者单位： | 福建省建筑设计研究院,福建福州350001 |
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| 摘 要： | 大底盘非对称塔楼是一种复杂的结构体系，结构的上下刚度变化很大。采用PKPM软件中SATWE模块对一组上下刚度比值不同的非对称塔楼结构建模分析，计算得到结构的固有周期和模态振型，认为底盘与塔楼刚度比值β变化对结构各振型的振动模式影响不大，当β值取为3时，结构的周期和整体位移均达最小值。
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| 关 键 词： | 非对称塔楼 位移 振型 动力特性 |
Seismic response of unsymmetrical tower building with enlarged base |
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| Authors: | XU Li-lei |
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| Affiliation: | XU Li-lei (Fujian Architecture Design & Research Institution,Fuzhou 350001,China) |
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| Abstract: | The unsymmetrical tower building with enlarged base is a kind of complicated structure system, its stiffness change remarkably from the bottom up. The analytical natural period and mode shapes of a series of models with different stiffness ratio were obtained by using the SATWE module of the software, PKPM. The vibrational modes of structure change litde while β value is changed. When value of β is 3, the natural period and displacement of struc- ture all touch their bottom. |
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| Keywords: | unsymmetrical tower displacement vibration-mode dynamic characteristic |
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