| 张拉整体三棱柱单元体结构分析 |
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| 引用本文： | 陈志华,刘锡良.张拉整体三棱柱单元体结构分析[J].天津大学学报(自然科学与工程技术版),2000,33(1):88-92. |
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| 作者姓名： | 陈志华 刘锡良 |
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| 作者单位： | 陈志华（天津大学建筑工程学院，天津 300072）;刘锡良（天津大学建筑工程学院，天津 300072） |
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| 摘 要： | 将杆系非线性有限元方法应用和拉整体结构，采用增量型的牛顿法来求解其非线性基本方程组，编制了计算程序，以找形分析的结果作为记，用所编程序对张拉整体三棱柱单元体的三种预应力状态进行了分析，发现了张拉整体的结构特性及一阶无限小内部机构对结构刚度打电话
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| 关 键 词： | 三棱柱单元体 非线性有限元 张拉整体结构 |
| 文章编号： | 0493-2137(2000)01-0088-05 |
| 修稿时间： | 1999-05-30 |
STUDY ON TENSEGRITY STRUCTURES OF TRIANGULAR PRISM UNIT |
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| CHEN Zhi-hua,LIU Xi-liang.STUDY ON TENSEGRITY STRUCTURES OF TRIANGULAR PRISM UNIT[J].Journal of Tianjin University(Science and Technology),2000,33(1):88-92. |
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| Authors: | CHEN Zhi-hua LIU Xi-liang |
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| Institution: | CHEN Zhi-hua
,LIU Xi-liang
;(School of Constructional Engineering,Tianjin University,Tianjin 300072,China) |
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| Abstract: | The non linear FEM theory was adopted in the analysis of tensegrity structures,and by a kind of N.R.method for the solution of the essential equations,the FEM program was designed and carried out.On the basis of the form finding analysis,the program was then used to analyse the tensegrity unit structures of three different prestress levels,which were regarded as the initial state.The results show the structural features of tensegrity systems,and the influence of first order infinitesimal mechanism to the structural rigidity was also revealed. |
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| Keywords: | tensegrity structures triangular prism unit prestress first-order infinitesimal mechanism non-linear FEM |
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