| 焊接组合梁腹板屈曲后性能的曲壳有限元分析 |
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| 引用本文： | 韩庆华 尹越. 焊接组合梁腹板屈曲后性能的曲壳有限元分析[J]. 钢结构, 1999, 14(1): 48-52 |
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| 作者姓名： | 韩庆华 尹越 |
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| 作者单位： | 天津大学!天津，300072，天津大学!天津，300072，天津大学!天津，300072 |
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| 摘 要： | 推导了UL列式下三维退化曲壳单元的弹塑性切线刚度矩阵，应用柱面等弧长法对组合梁腹板屈曲前后的平衡路径进行了全过租跟踪，同时考虑初挠度及残余应力的影响，并将计算结果与试验结果及国外钢结构设计规范推荐公式作了比校，得出了一系列结论．
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| 关 键 词： | 组合梁腹板 曲壳单元 柱面等弧长法 屈曲后性能 |
POST-BUCKLING ANALYSIS OF WEB PLATES OF GIRDERS BY CURVED SHELL ELEMENT METHOD |
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| Han Qinghua, Yin Yue, Liu Xiliang. POST-BUCKLING ANALYSIS OF WEB PLATES OF GIRDERS BY CURVED SHELL ELEMENT METHOD[J]. Steel Construction, 1999, 14(1): 48-52 |
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| Authors: | Han Qinghua Yin Yue Liu Xiliang |
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| Affiliation: | Tianjin University Tianjin 00072 |
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| Abstract: | The elastic-plastic tangent stiffness matrix of curved shell element is derived by the use of Updated Lagrangian formulation and the post-buckling equilibrium path of the web plates of the web plates of girders is traced bycylindrical are-length method. With regard to the initial deflection and residual stress, the ultimateload of web plates of girders is calculated. After the theoretical calculation is compared with experiment result and recommended formulations of other countries'code, many important conclusions are drawn at the end of this paper. |
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| Keywords: | web plates of girders curved shell element cylindrical are-length method post-buckling equilibrium path |
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