| 郑州国际会展中心展厅钢屋盖的动力特性分析 |
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| 引用本文： | 任俊超,童丽萍,赵轶西.郑州国际会展中心展厅钢屋盖的动力特性分析[J].世界地震工程,2004,20(1):70-74. |
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| 作者姓名： | 任俊超 童丽萍 赵轶西 |
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| 作者单位： | 1. 郑州大学,河南,郑州,450002
2. 郑州市建设委员会,河南,郑州,450006 |
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| 摘 要： | 郑州国际会展中心展览厅钢屋盖采用了空间斜拉式索拱结构体系，为探讨该体系的动力特性，采用ANSYS有限元程序，分别建立钢屋盖与下部混凝土结构共同作用、钢屋盖单独作用以及无斜拉系统的钢屋盖单独作用时的3个空间计算模型，采用子空间迭代法计算其自振周期和振型，并加以比较。从而得出钢屋盖的动力特性，为进一步研究此类结构的受力特性奠定了基础。
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| 关 键 词： | 动力特性 子空间迭代 自振周期 振型 ANSYS有限元程序 |
| 文章编号： | 1007-6069(2004)01-0070-05 |
| 修稿时间： | 2003年4月21日 |
Analysis on dynamic characteristics of the steel roof for Zhengzhou International Conference Exhibition Center |
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| REN Jun-chao.Analysis on dynamic characteristics of the steel roof for Zhengzhou International Conference Exhibition Center[J].World Information On Earthquake Engineering,2004,20(1):70-74. |
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| Authors: | REN Jun-chao |
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| Institution: | REN Jun-chao~ |
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| Abstract: | In this paper, based on the study of steel roof in Zhengzhou International Conference Exhibition Center, dynamic characteristics of stayed prestressed cable-arch mixed structure are discussed by using the ANSYS finite element program. Three space computing models are established for the interaction of the steel roof with bottom concrete structure, the action of the steel roof by itself and that without suspended systems respectively. The subspace iteration is introduced to calculate the vibration period and mode of the mixed structure. The results of three models are compared so that the dynamic properties of the steel roof can be obtained,which provides a foundation for the further study of the mechamical properties of the mixed structure. |
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| Keywords: | dynamic properties subspace iteration natural vibration period mode |
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