| 大跨径预应力混凝土刚构桥施工过程稳定性研究 |
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| 引用本文： | 刘伟方.大跨径预应力混凝土刚构桥施工过程稳定性研究[J].山西建筑,2014(25):210-212. |
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| 作者姓名： | 刘伟方 |
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| 作者单位： | 宜昌市城市建设投资开发有限公司 |
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| 摘 要： | 以某(50+80+80+50)m四跨预应力混凝土刚构桥为工程背景,依据实际施工工艺,采用MIDAS有限元分析软件建立了该桥施工阶段空间有限元分析模型,基于结构第一类稳定分析理论,研究了该桥各施工阶段结构的弹性稳定性,并计算求解了各施工阶段结构的弹性稳定安全系数。
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| 关 键 词： | 预应力混凝土刚构桥 施工阶段 弹性稳定性 |
Research on stability of long-span pre-stressed concrete rigid-frame bridge during the construction |
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| LIU Wei-fang.Research on stability of long-span pre-stressed concrete rigid-frame bridge during the construction[J].Shanxi Architecture,2014(25):210-212. |
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| Authors: | LIU Wei-fang |
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| Affiliation: | LIU Wei-fang ( Yichang City Construction Investment Developing Co. , Ltd, Yichang 443000, China) |
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| Abstract: | This paper takes a pre-stressed concrete rigid-frame bridge,with（50 ＋ 80 ＋ 80 ＋ 50）m span,as engineering background. According to the construction technology,the finite element model during construction was established by MIDAS software. Based on the first kind of stability analysis theory,the elastic stability of the bridge was researched and the elastic stability safety coefficient was calculated in each construction stage. |
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| Keywords: | pre-stressed concrete rigid-frame bridge construction stage elastic stability |
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