| 板桁组合结构空间计算的板桁梁段有限元法 |
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| 引用本文： | 王荣辉,徐林荣.板桁组合结构空间计算的板桁梁段有限元法[J].工程力学,1999,16(4):65-72,77. |
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| 作者姓名： | 王荣辉 徐林荣 |
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| 作者单位： | 长沙铁道学院!长沙，410075，长沙铁道学院!长沙，410075，长沙铁道学院!长沙，410075 |
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| 摘 要： | 本文考虑了板桁组合结构桥面板的局部屈曲，剪力滞后和板桁梁段截面畸变、翘曲、扭转与剪切变形的影响，利用横向有限条带法构造了桥面板板段的局部空间变位模式，提出了板桁梁段有限元法。该方法自由度少，计算精度高，能用于大型板桥组合结构的空间计算。
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| 关 键 词： | 板桁结构 横向有限条带 局部空间变位模式 板桁梁段有限元法 |
PLATE-TRUSS DECK SECTION FINITE ELEMENT METHOD OF SPATIAL ANALYSIS FOR PLATE-TRUSS COMPOSITE STRUCTURE |
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| WANG Rong-hui, XU Lin-rong, ZENG Qing-yuan.PLATE-TRUSS DECK SECTION FINITE ELEMENT METHOD OF SPATIAL ANALYSIS FOR PLATE-TRUSS COMPOSITE STRUCTURE[J].Engineering Mechanics,1999,16(4):65-72,77. |
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| Authors: | WANG Rong-hui XU Lin-rong ZENG Qing-yuan |
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| Affiliation: | Changsha Railway University 410075 |
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| Abstract: | The present research focuses on the spatial analysis of plate-truss composite stuructures. The influences of local buclding of deck, shear lag, section distortion, warping deformation, tWist and shear deformation are taken into account in the analysis. A plate-truss deck section finite element method is proposed in which the spatial local displacements are formulated using transverse finite strips. The method has high accuracy and less degrees of freedom, especially for spatial analysis of large plate-miss composite structures. |
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| Keywords: | plate-truss composite structure transverse finite strip spatial local displacementmodel finite elements of plate-truss deck |
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