| 弹塑性梁柱变截面刚度的模拟 |
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| 引用本文： | 方志,祝彦知,宋启根.弹塑性梁柱变截面刚度的模拟[J].河南科技大学学报(自然科学版),2004,25(4):67-70. |
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| 作者姓名： | 方志 祝彦知 宋启根 |
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| 作者单位： | 1. 同济大学,地下建筑与工程系,上海,200092
2. 东南大学,土木工程学院,江苏,南京,210096 |
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| 摘 要： | 利用幂函数模拟的变截面法建立了描述弹塑性梁柱截面刚度变化规律的简化数学力学模型，并分析了荷载作用下塑性梁柱截面刚度沿长度分布的变化规律。与Chen W F的理论结果比较，证明了此模型的正确性。此模型在一定程度上揭示了梁柱塑性区的内在变化规律，且其结果具有直观性和截面刚度计算的简单性。
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| 关 键 词： | 弹塑性梁柱 变截面 刚度 非线性 幂函数模拟 |
| 文章编号： | 1672-6871(2004)04-0067-04 |
| 修稿时间： | 2004年3月31日 |
Stiffness Simulation of Elastic-Plastic of Beam-Column with Varying Section |
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| FANG Zhi,ZHU Yan-Zhi,SONG Qi-Gen.Stiffness Simulation of Elastic-Plastic of Beam-Column with Varying Section[J].Journal of Henan University of Science & Technology:Natural Science,2004,25(4):67-70. |
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| Authors: | FANG Zhi ZHU Yan-Zhi SONG Qi-Gen |
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| Institution: | FANG Zhi~1,ZHU Yan-Zhi~1,SONG Qi-Gen~2 |
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| Abstract: | A simplified mathematic-mechanical model for nonlinear analysis of beam-column is presented, using the varying section method of power function to simulate the distributing rule of the section stiffness of plastic beam-column in its longness and its validity is proved. This model to a certain extent unveils the inner distributional regularity of the plastic beam-column,with legible results and character of simple calculation. It can be regarded as a basic model for researching the elastic-plastic beam-column frame. |
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| Keywords: | Beam-columns Nonlinear Variable cross-Secion beams Elastic-plastic |
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