| 弹性支承柱对整体张拉膜结构的影响 |
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| 引用本文： | 王秀丽,李永祥,魏彪,徐英雷.弹性支承柱对整体张拉膜结构的影响[J].兰州理工大学学报,2009,35(3). |
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| 作者姓名： | 王秀丽 李永祥 魏彪 徐英雷 |
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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： | 索膜结构分析中将膜边界视为固接,未考虑支承结构与膜结构之间的相互作用以及支承结构在该节点的位移,使找形结果与实际情况产生一定差异,即缺少整体张拉模型的分析.考虑弹性支承结构对膜结构的应力以及自振频率的影响,采用ANSYS模拟分析弹性支承柱与膜结构相互作用过程.结果表明,膜结构在支座提升(施加预应力)阶段基本符合"膜面预应力处处相等"的原则,由"边缘效应"产生的膜面应力不均匀分布也可以通过支承柱的设置来给予适当的调整.
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| 关 键 词： | 弹性支承 小弹性模量法 等应力曲面 找形分析 |
The influence of elastic supporting column on integral stressed membrane structure |
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| WANG Xiu-li,LI Yong-xiang,WEI Biao,XU Ying-lei.The influence of elastic supporting column on integral stressed membrane structure[J].Journal of Lanzhou University of Technology,2009,35(3). |
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| Authors: | WANG Xiu-li LI Yong-xiang WEI Biao XU Ying-lei |
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| Institution: | WANG Xiu-li,LI Yong-xiang,WEI Biao,XU Ying-lei(College of Civil Engineering,Lanzhou Univ.of Tech.,Lanzhou 730050,China) |
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| Abstract: | In analysis of cable-membrane structure,the membrane boundary was regarded as fixed and the interaction between supporting structure and membrane structure as well as the node displacement of the supporting structure were not considered,making the form found different from the actual one,namely lacking of analysis of integral stressing model.The process of interaction between concrete support pillars and membrane structure was analyzed with ANSYS simulation.Meanwhile,the influence of supporting structure on... |
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| Keywords: | elastic supporting low elasticity modulus method equally stressed curved surface form-finding analysis |
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