| 预应力空间组合桁架的模态分析 |
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| 引用本文： | 李春燕,韩建平.预应力空间组合桁架的模态分析[J].甘肃科学学报,2008,20(1):139-142. |
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| 作者姓名： | 李春燕 韩建平 |
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| 作者单位： | 兰州理工大学,土木工程学院,甘肃,兰州,730050 |
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| 摘 要： | 利用ANSYS有限元分析软件建立了钢筋混凝土楼板模型和预应力空间组合结构模型，对楼板模型和预应力空间组合结构模型分别进行了模态分析，同时分析了垂跨比、预应力度、拉索截面面积、纵向连接索数和楼板厚度对预应力空间组合结构自振特性的影响．
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| 关 键 词： | 预应力 空间组合桁架 ANSYS 模态分析 自振特性 |
| 文章编号： | 1004-0366(2008)01-0139-04 |
| 修稿时间： | 2007年9月4日 |
Model Analysis of the Prestressed Space Composite Truss Structure |
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| LI Chun-yan,HAN Jian-ping.Model Analysis of the Prestressed Space Composite Truss Structure[J].Journal of Gansu Sciences,2008,20(1):139-142. |
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| Authors: | LI Chun-yan HAN Jian-ping |
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| Institution: | (School of Civil Engineering, Lanzhou University of Science Technology ,Lanzhou 730050, China) |
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| Abstract: | Based on the model analysis method of ANSYS finite element calculation software, the model analysis of reinforced concrete floor and prestressed space composite truss was processed. At the same time, the effect caused by different parameters on the free vibration properties of the prestressed space composite truss was discussed. The parameters included drag-span ratio of cable, the value of prestressing force, the thickness of reinforced concrete floor, the cross area of tightwire and the number of prestressed tight wire. At the end, some useful suggestions were listed. |
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| Keywords: | prestressing space composite truss ANSYS model analysis characteristic of free vibration |
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