[1]徐建国,王博..渡槽结构动力性能的有限元分析[J].郑州大学学报(工学版),1999,20(02):67-69.[doi:10.3969/j.issn.1671-6833.1999.02.022]
　Xu Jianguo,Wang Bo.Finite element analysis of dynamic properties of aqueduct structures[J].Journal of Zhengzhou University (Engineering Science),1999,20(02):67-69.[doi:10.3969/j.issn.1671-6833.1999.02.022]
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渡槽结构动力性能的有限元分析()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
20
期数:
1999年02期
页码:
67-69
栏目:
出版日期:
1999-01-01

文章信息/Info

Title:
Finite element analysis of dynamic properties of aqueduct structures
作者:
徐建国; 王博.
郑州工业大学水利及环境工程学院,河南郑州,450002
Author(s):
Xu Jianguo; Wang Bo
关键词:
渡槽;  有限元;  模态;  地震响应
Keywords:
DOI:
10.3969/j.issn.1671-6833.1999.02.022
文献标志码:
A
摘要:
为分析南水北调水利工程某渡槽的结构动力性能,以便对工程设计提供有力支持,采用8结点空间块体单元对渡槽进行有限元离散.借助SAP 93有限元分析软件,对该渡槽进行4种工况(槽内无水、槽内有水、渡槽无伸缩缝、渡槽有伸缩缝)下的模态分析及地震荷载作用下的动力响应时程计算.结果表明:在无水情况下,无伸缩缝时的各阶频率均大于有伸缩缝时对应的各阶频率;在渡槽有水情况下也有同样的结果.对于具有相同结构的渡槽,无水时的各阶频率均大于有水时相应的各阶频率.
Abstract:
In order to analyze the structural dynamic performance of an aqueduct in the South-to-North Water Diversion Project, so as to provide strong support for the engineering design, the finite element discretization of the aqueduct was carried out by using 8-node space block units. With the help of SAP 93 finite element analysis software, the modal analysis of the aqueduct under four working conditions (no water in the tank, water in the tank, no expansion joint in the aqueduct, and expansion joint in the aqueduct) and the calculation of the dynamic response time history under seismic load were carried out. The results show that in the absence of water, the frequency of each order without expansion joint is greater than the corresponding frequency of each order when there is expansion joint. The same result is true when there is water in the aqueduct. For aqueducts with the same structure, the frequency of each order in the absence of water is greater than the corresponding frequency of each order when there is water.

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更新日期/Last Update: 1900-01-01