| BSS结构体系形状确定分析 |
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| 引用本文： | 柳胜华,齐永胜.BSS结构体系形状确定分析[J].青岛理工大学学报,2005,26(3):19-23. |
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| 作者姓名： | 柳胜华 齐永胜 |
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| 作者单位： | 同济大学,土木工程学院,上海,200092;常州工学院,土木建筑工程学院,常州,213002 |
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| 摘 要： | 对预应力索-梁结构体系的形状确定问题进行了分析.采用对索段进行降温以实现索-梁结构预应力施加的降温法,通过大型通用有限元程序ANSYS提供的APDL语言进行结构建模,考虑结构的强几何非线性进行求解,可成功的求解预应力索-梁结构体系的零状态放样几何和初状态的预应力分布.由于未破坏结构的整体性,还可以在此基础上进行结构荷载态的分析.
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| 关 键 词： | 索-梁结构 降温法 零状态放样几何 几何非线性 |
| 修稿时间： | 2004年3月10日 |
Form-finding Analysis of Beam String Structures |
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| LIU Sheng-hua,QI Yong-sheng.Form-finding Analysis of Beam String Structures[J].Journal of Qingdao Technological University,2005,26(3):19-23. |
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| Authors: | LIU Sheng-hua QI Yong-sheng |
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| Affiliation: | Liu Sheng-hua~1,Qi Yong-sheng~2 |
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| Abstract: | This paper gives analyses of form-finding for beam string structures and provides an alternative method of lowering temperature of string to find beam string structures' undeformed configuration. Based on major general program ANSYS and its APDL language, this paper forms the model and gets its undeformed configuration and the pre-stress distributions at the initial state successfully in consideration of large geometric nonlinearity of beam string structures. After the zero state is found, it is convenient that the subsequent loading analysis can still be carried out. |
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| Keywords: | beam string structure method of lowering temperature undeformed configuration geome-tric nonlinearity |
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