| BEAM18x单元在杆系结构分析中的应用 |
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| 引用本文： | 陈学玲,王新敏.BEAM18x单元在杆系结构分析中的应用[J].国防交通工程与技术,2009,7(1):67-70. |
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| 作者姓名： | 陈学玲 王新敏 |
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| 作者单位： | 1. 石家庄铁道学院土木工程分院,河北,石家庄,050043
2. 石家庄铁道学院大型结构健康诊断与控制研究所,河北,石家庄,050043 |
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| 摘 要： | 简要介绍了ANSYS提供的BEAM18x单元的功能和Timoshenko梁理论的基本假定，就该单元的长细比影响、曲梁应用，变截面、组合截面、剪切变形的处理及刚度矩阵推导等问题进行了讨论，总结了用BEAM18x单元进行杆系结构分析时的适用性与方法，有助于对BEAM18x单元的理解及应用。
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| 关 键 词： | BEAM18x单元 长细比 梁截面 剪切变形 刚度矩阵 |
Application of BEAM18x Elements to the Analysis of Pole Structures |
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| Chen Xueling,Wang Xinmin.Application of BEAM18x Elements to the Analysis of Pole Structures[J].Traffic Engineering and Technology for National Defence,2009,7(1):67-70. |
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| Authors: | Chen Xueling Wang Xinmin |
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| Institution: | 1.School of Civil Engineering;Shijiazhuang Railway Institute;Shijiazhuang 050043;China;2.Structural Health Monitoring and Control Institution of the Shijiazhuang Railway Institute;China |
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| Abstract: | The functions of BEAM18x elements in ANSYS and the basic assumptions of the Timoshenko beam theory are briefly introduced in the paper,with problems in the applicability of the elements,the application of them to curved beams,variable cross-sections,and combined cross-sections,and shear deformation and the stiffness matrix discussed,and their applicability and application methods summed up for BEAM18x elements in the analysis of Pole Structures. |
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| Keywords: | BEAM18x elements length-slenderness ratio beam section shear deformation stiffness matrix |
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