| 考虑地基弹性抗力的箱形框架内力分析 |
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| 引用本文： | 徐培兴. 考虑地基弹性抗力的箱形框架内力分析[J]. 工程力学, 1989, 6(4): 97-108 |
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| 作者姓名： | 徐培兴 |
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| 作者单位： | 武汉城市建设学院 |
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| 摘 要： | 本文从弹性地基梁的挠曲线微分方程出发,考虑地基的弹性抗力,用有限单元法的矩阵变换,推导出地基梁单元的刚度矩阵,用于求解地上或地下箱形框架内力的分析计算。
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| 关 键 词： | 地基 弹性抗力 箱形框架 内力 |
ANALYSIS OF INTERNAL FORCE OF BOX FRAME WITH CONSIDERING ELASTIC RESISTANCES OF FOUNDATION |
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| Abstract: | Starting from the differential equations for defletion of beam on elastic foundation, the stiffness matrices for beam element on elastic foundation are developed by using matrix trans. formation according to the finite element method. During calculation the elastic resistances of foundation were taken into account. These stiffness matrices can be used to determine box frames on or underground and are characterized by simplicity and practicality. |
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