| 大矢跨比开孔单层球面网壳结构的抗振分析与设计 |
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| 引用本文： | 韩庆华,刘锡良.大矢跨比开孔单层球面网壳结构的抗振分析与设计[J].空间结构,2001,7(3):52-56. |
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| 作者姓名： | 韩庆华 刘锡良 |
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| 作者单位： | 天津大学建筑工程学院,天津,300072 |
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| 摘 要： | 本结构一工程实例,采用子空间迭代法求出该网壳结构的前20阶自振频率和振型,分析了其振动规律;应用振型分解反应谱法和时程分析法分析了该网壳结构的地震反应;结合现行抗震设计规范对网壳结构进行了“二阶级”抗震验算。最后,本得出了一些结论工程界参考。
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| 关 键 词： | 大矢跨比 开孔单层球壳 自振特性 抗震设计 |
| 文章编号： | 1006-6578(2001)03-0052-05 |
| 修稿时间： | 2001年2月24日 |
SEISMIC ANALYSIS AND DESIGN OF A SINGLE LAYER SPHERICAL LATTICE SHELL WITH LARGE DEPTH-TO-SPAN RATIO AND OPENINGS |
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| HAN Qing hua,LIU Xi liang.SEISMIC ANALYSIS AND DESIGN OF A SINGLE LAYER SPHERICAL LATTICE SHELL WITH LARGE DEPTH-TO-SPAN RATIO AND OPENINGS[J].Spatial Structures,2001,7(3):52-56. |
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| Authors: | HAN Qing hua LIU Xi liang |
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| Abstract: | In this paper, the first 20 natural frequencies and the corresponding mode shapes of a single layer spherical lattice shell with openings are calculated using the subspace iteration method. The seismic response of the spherical dome is obtained by means of the modal decomposition response spectrum method and time history method. The "two stage" seismic check is done according to the current code of seismic design. Some conclusions are put forward to the engineers at the end of this paper. |
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| Keywords: | large depth to span ratio single layer spherical dome with openings natural properties dynamic response seismic design |
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