| 门式刚架结构抗地表变形性能分析 |
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| 引用本文： | 卜令全,夏军武,侯智超.门式刚架结构抗地表变形性能分析[J].黑龙江科技学院学报,2010,20(5):353-359. |
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| 作者姓名： | 卜令全 夏军武 侯智超 |
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| 作者单位： | [1]潍坊市市政工程设计研究院有限公司,山东潍坊261031 [2]中国矿业大学力学与建筑工程学院,江苏徐州221116 |
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| 摘 要： | 为更好地了解采动区现有门式刚架结构的力学性能，以双跨带吊车门式刚架结构为研究对象，采用物理实验和有限元模拟手段，分析了门式刚架结构在地表压缩、拉伸、倾斜（不均匀沉降）、正曲率和负曲率变形条件下的附加应力和附加位移的变化规律。最后得出了地表变形作用下门式刚架结构的全局响应及抗变形规律，为采动区门式刚架结构设计提供了理论依据。
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| 关 键 词： | 门式刚架 地表变形 附加应力 数值模拟 |
Analysis of performance of portal frame structure resisting ground deformation |
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| BU Lingquan,XIA Junwu,HOU Zhichao.Analysis of performance of portal frame structure resisting ground deformation[J].Journal of Heilongjiang Institute of Science and Technology,2010,20(5):353-359. |
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| Authors: | BU Lingquan XIA Junwu HOU Zhichao |
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| Institution: | 1. Weifang Municipal Engineering Design ＆ Reseach Institute, Weifang 261031, China; 2. School of Mechanics ＆ Civil Engineering, China University of Mining ＆ Technology, Xuzhou 221116, China) |
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| Abstract: | Aimed at a better insight into the mechanical properties of the currently used portal frame structure in mining subsidence area, this paper is focused on the study of the double-span portal frame structure with crane and introduces the use of the physical experiment and FEM to analyze the laws governing the additional stress and displacement of the portal frame construction, subjected to the surface com- pression, elongation, tilt（ uneven settlement） , and deformation of positive curvature and negative one. It follows that the global responses and the law governing deformation resistance of portal frame structure exposed to ground deformation provide the theoretical basis for the design of the portal frame structure in mining subsidence area. |
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| Keywords: | portal frame surface deformation additional stress numerical simulation |
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