| 单层鞍型网壳频谱特性分析 |
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| 引用本文： | 栗荣刚,吕晓寅,邢佶慧. 单层鞍型网壳频谱特性分析[J]. 科学技术与工程, 2009, 9(3) |
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| 作者姓名： | 栗荣刚 吕晓寅 邢佶慧 |
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| 作者单位： | 中国电子工程设计院世源科技工程有限公司,北京,100840;北京交通大学土建学院,北京,100044 |
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| 摘 要： | 采用有限元软件ANSYS系统地研究了单层鞍型网壳结构的自振特性,分析了不同屋面荷载、不同高跨比、不同跨度下单层鞍型网壳自振频率及振型的变化规律,并利用了线性谐响应分析的方法探讨了其对频域上不同频率激励荷载的敏感程度,得出对工程实际有建设性意义的结论.
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| 关 键 词： | 单层鞍型网壳 自振特性 谐响应 共振区 |
Study on Spectrum Characteristics of Single-layer Saddle-shaped Reticular Shells |
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| LI Rong-gang,L Xiao-yin,XING Ji-hui. Study on Spectrum Characteristics of Single-layer Saddle-shaped Reticular Shells[J]. Science Technology and Engineering, 2009, 9(3) |
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| Authors: | LI Rong-gang L Xiao-yin XING Ji-hui |
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| Affiliation: | China electronics engineering design institute;S.Y. technology;engineering and construction co. Ltd;Beijing 100840;P.R.China;School of Civil Engineering;Beijing Jiaotong University1;Beijing 100044;P.R.China |
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| Abstract: | The free vibration characteristics of single-layer saddle-shaped reticulated shells are analyzed taking into account the influence of many kinds of factors such as the span, the rise-span ratio, the roof surface load and so on by FEM. program ANSYS. Then, different sensitivity of such structures to various impulses in frequency domain is studied by applying harmonic loads. The outcome is useful for the anti-seismic structural design to structural engineers. |
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| Keywords: | single-layer saddle-shaped reticular shell spectrum characteristics free vibration properties harmonic load |
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