| 体内张拉成形空间网格结构自振特性研究 |
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| 引用本文： | 王奎,张毅刚,王成. 体内张拉成形空间网格结构自振特性研究[J]. 工程建设与设计, 2009, 0(8): 13-16 |
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| 作者姓名： | 王奎 张毅刚 王成 |
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| 作者单位： | 北京工业大学空间结构研究中心,北京,100124 |
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| 摘 要： | 体内张拉成形空间网格结构是由上弦梁、下弦（下弦管内穿索）、腹杆以及环杆等构件组成的一种新型空间结构形式，是通过对下弦管内索施加预应力张拉成形，进而改善结构受力性能的自平衡体系。文章利用ANSYS软件中的子空间迭代法，分析了体内张拉成形空间网格结构的自振特性，并针对不同的参数如矢跨比、立柱高度、预应力大小、腹杆数量以及环杆数量进行了参数分析，得出了各参数对结构的自振特性的影响。
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| 关 键 词： | 空间网格结构 体内张拉成形 自振特性分析 子空 间迭代法 |
Research on Free Vibration Characteristics of Internal-Prestressed Reticulated Space Structure |
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| WANG Kui,ZHANG Yi-gang,WANG Cheng. Research on Free Vibration Characteristics of Internal-Prestressed Reticulated Space Structure[J]. Construction & Design for Project, 2009, 0(8): 13-16 |
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| Authors: | WANG Kui ZHANG Yi-gang WANG Cheng |
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| Affiliation: | WANG Kui,ZHANG Yi-gang,WANG Cheng(Research Center of Space Structure,Beijing University of Technology,Beijing 100124,China) |
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| Abstract: | Internal-prestressed reticulated space structure is a novel prestressed long span structure,which is composed of upper chord,lower chord,web member and lateral support member.The erection of this structure into its final configuration is achieved by tensioning prestressing cables passing through the lower chord,which can improve its mechanical characteristics.The free vibration characteristics of this structure are analyzed in this paper by ANSYS with the method of subspace iteration.Through analysis of the... |
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| Keywords: | reticulated space structure interaal-prestressed fleevibration characteristics subspace iteration method |
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