| 单层椭球形网壳考虑下部结构减震性能分析 |
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| 引用本文： | 王秀丽,陈继云,王本科.单层椭球形网壳考虑下部结构减震性能分析[J].建筑科学,2008,24(11). |
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| 作者姓名： | 王秀丽 陈继云 王本科 |
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| 作者单位： | 兰州理工大学,土木工程学院,兰州,730050 |
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| 基金项目： | 国家自然科学基金项目
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| 摘 要： | 通过大型有限元分析软件ANSYS对40m跨单层椭球形网壳结构进行研究和参数分析.模型中的下部结构采用钢筋混凝土柱,以考虑对网壳的影响,并对单层椭球形网壳是否考虑下部结构的两种计算模型进行了自振振型下的模态比较.文中提出此类网壳屈曲约束支撑的布置方式,等截面替换了网壳内的部分杆件,并对有屈曲约束支撑单层椭球形网壳的减震性能进行分析.结果表明,下部结构对结构整体的影响不可忽略,合理布置约束屈曲支撑的网壳结构减震效果较好.
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| 关 键 词： | 单层椭球形网壳 屈曲约束支撑 下部结构 减震 |
The Vibration Reducing Performance of the Single Layer Oval Shell Considering Sub-Structure |
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| WANG Xiu-li,CHEN Ji-yun,WANG Ben-ke.The Vibration Reducing Performance of the Single Layer Oval Shell Considering Sub-Structure[J].Building Science,2008,24(11). |
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| Authors: | WANG Xiu-li CHEN Ji-yun WANG Ben-ke |
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| Affiliation: | WANG Xiu-li,CHEN Ji-yun,WANG Ben-ke(School of Civil Engineering,Lanzhou Univ.of Tech.,Lanzhou 730050,China) |
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| Abstract: | The finite element analysis software ANSYS program is applied to analyze the 40m span single-layer oval shell and its parameters in this paper.In the model the the reinforced concrete column is selected as the sub-structure, so as to consider its effect on the shell.The modes under natural vibration model are comparatively analyzed whether the single-layer oval shell is with the sub-structure or not.A kind of BRB arrangement mode is presented by which some sections of the shell with the same area as BRBs ar... |
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| Keywords: | the single-layer oval shell buckling restrained brace(BRB) sub-structure vibration reducing |
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