| 基于子模型法的钢拱桥关键梁段精细化分析 |
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| 引用本文： | 张志兴,邓长根,巩俊松.基于子模型法的钢拱桥关键梁段精细化分析[J].科学技术与工程,2021,21(20):8656-8662. |
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| 作者姓名： | 张志兴 邓长根 巩俊松 |
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| 作者单位： | 同济大学土木工程学院,上海200092;中国二十冶集团有限公司,上海201999 |
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| 基金项目： | 国家自然科学基金项目（面上项目，重点项目，重大项目）, |
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| 摘 要： | 针对某单跨钢拱桥,基于子模型方法,利用有限元软件ANSYS先进行全桥整体分析,得出所需边界条件,继而对关键梁段进行精细化建模,根据实际荷载情况进行加载,分析了关键梁段的空间应力分布状态以及局部稳定性.结果 表明:车行道与人行道关键梁段在最不利荷载工况作用下,其应力水平与稳定性均能满足规范要求.
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| 关 键 词： | 钢拱桥 子模型法 精细化模型 静力分析 稳定性分析 |
| 收稿时间： | 2020/12/4 0:00:00 |
| 修稿时间： | 2021/4/24 0:00:00 |
Refined Analysis of The Key Beam Segment of Steel Arch Bridge Based on Sub-Model Method |
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| Zhang Zhixing,Deng Changgen,Gong Junsong.Refined Analysis of The Key Beam Segment of Steel Arch Bridge Based on Sub-Model Method[J].Science Technology and Engineering,2021,21(20):8656-8662. |
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| Authors: | Zhang Zhixing Deng Changgen Gong Junsong |
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| Institution: | College of Civil Engineering,Tongji University,,China MCC Group Co,Ltd |
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| Abstract: | Based on sub-model method, ANSYS finite element for overall analysis was first used to analyse a one-span steel arch bridge. After the essential boundary conditions were obtained, refined modeling of the key beam segment was built. Then the loads were loaded according to the actual situation. Finally, distributional conditions of space stress and local stability of the key beam segment were analysed. The results show that, under the influence of the worst load case of the key beam segment of roadway and sidewalk, the requirements of specifications could be met in the results of stress level and stability. |
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| Keywords: | steel arch bridge sub-model method refined modeling static analysis stability analysis |
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