| 连续刚构桥施工阶段稳定性敏感因素分析 |
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| 引用本文： | 康玉强,龚尚龙,吴海军,王豪.连续刚构桥施工阶段稳定性敏感因素分析[J].河南工程学院学报（自然科学版）,2011,23(4):42-46,80. |
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| 作者姓名： | 康玉强 龚尚龙 吴海军 王豪 |
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| 作者单位： | 重庆交通大学土木建筑学院,重庆,400074 |
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| 摘 要： | 分析了桥梁稳定性的基本理论,以某大跨高墩预应力混凝土连续刚桥为例,采用MIDAS计算软件建立了有限元模型,综合考虑风载、挂篮、墩高等因素,对该桥在施工阶段的稳定性做了全面分析.计算得到了最大悬臂状态特征值及失稳模态,分析比较了墩高、风力、挂篮、不对称施工荷载等因素对桥梁稳定性的影响,得出了不均衡自重和挂篮跌落是影响桥梁...
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| 关 键 词： | 薄壁高墩 连续刚构 抗风 稳定 悬臂施工 |
Analysis of Sensitive Factors of Long-Span Continuous Rigid Frame Bridge with Thin-Wall Piers in the Stage of Construction |
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| Abstract: | While introducing the basic theory of stability,with a high pier of large span pre-stressed concrete continuous bridge as the example,the stability was analyzed when it is constructed,considering wind load,hanging basket,pier etc.Both eigen value and mode are got for the longest constructing moment,the sensitivity of stability to various loads being analyzed while the unbalanced weight and the fell of basket are the main factors. |
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| Keywords: | thin-wall and high-pier continuous rigid frame bridge wind resistant stability cantilever construction |
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