| 带T单元的膜结构力密度法找形及程序编制 |
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| 引用本文： | 苏建华,韩大建,徐其功.带T单元的膜结构力密度法找形及程序编制[J].华南理工大学学报(自然科学版),2005,33(8):75-79. |
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| 作者姓名： | 苏建华 韩大建 徐其功 |
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| 作者单位： | 华南理工大学,建筑学院,广东,广州,510640;华南理工大学,建筑学院,广东,广州,510640;华南理工大学,建筑学院,广东,广州,510640 |
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| 摘 要： | 在力密度法中引入T单元的概念，建立了带T单元的力密度法平衡方程，推导了膜线单元以及索边界T单元的单元力密度矩阵，编制了带T单元的膜结构力密度法找形程序，从而解决了组合膜结构找形中边界索的“锯齿”问题。最后用算例验证了该方法的可行性及所编制程序的正确性。
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| 关 键 词： | T单元 组合膜结构 力密度法 找形 |
| 文章编号： | 1000-565X（2005）08-0075-05 |
| 收稿时间： | 2004-10-07 |
| 修稿时间： | 2004年10月7日 |
Theory and Programming of Form-Finding via Force Density Method for Membrane Structures with T-Elements |
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| SU Jian-hua,HAN Da-jian,XU Qi-gong.Theory and Programming of Form-Finding via Force Density Method for Membrane Structures with T-Elements[J].Journal of South China University of Technology(Natural Science Edition),2005,33(8):75-79. |
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| Authors: | SU Jian-hua HAN Da-jian XU Qi-gong |
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| Abstract: | The concept of T-element is applied to the force density method. The equilibrium equation of the force density method with T-elements is presented. Then, the force density matrixes of the membrane elements and the T-elements on cable edges are deduced, and the corresponding form-finding program is designed. Thus, the problem of saw-liked edge cables in the form-finding of combined membrane structures can be solved. The feasibility of the proposed method and the correctness of the proposed program are finally verified by examples. |
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| Keywords: | T-element combined membrane structure force density method form-finding |
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