| 横系梁对双肢薄壁高墩刚构桥稳定性的影响分析 |
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| 引用本文： | 李健刚,杜玉东,魏燕玲,张俊波.横系梁对双肢薄壁高墩刚构桥稳定性的影响分析[J].铁道工程学报,2008(11). |
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| 作者姓名： | 李健刚 杜玉东 魏燕玲 张俊波 |
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| 作者单位： | 北京市市政工程设计研究总院,北京100082 |
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| 摘 要： | 研究目的：高墩桥梁稳定性一直是影响桥梁结构安全的关键因素，如何在保证桥梁外形美观、结构受力合理的情况下提高高墩桥梁的稳定性，是工程技术人员一直在探讨的问题。本文以京承三期清水河2^#桥为工程背景，采用三维有限元分析软件SAP2000对双肢薄壁高墩刚构桥进行空间稳定性分析，并对比分析在有无横系梁的情况下最大悬臂施工阶段和成桥阶段桥梁的稳定性。研究结论：初步得出了墩间横系梁对双肢薄壁高墩桥梁稳定性的影响：墩间横系梁主要对顺桥向的桥梁稳定性贡献较大，对桥梁横向稳定性基本上没有影响；随着墩问横系梁数量的增加，对稳定性的贡献也趋于稳定。恰当地设置横系梁能有效地提高双肢薄壁高墩刚构桥梁的稳定性，但随着横系梁数量的增加稳定性提高并不明显。
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| 关 键 词： | 双肢薄壁高墩 刚构桥 横系梁 稳定 |
Influence Analysis of the Stability by the Collar Beam of Double-shaft and Thin-wall High-rise Pier Rigid Frame Bridge |
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| LI Jian-gang,Du Yu-dong,Wei Yan-ling,ZHANG Jun-bo.Influence Analysis of the Stability by the Collar Beam of Double-shaft and Thin-wall High-rise Pier Rigid Frame Bridge[J].Journal of Railway Engineering Society,2008(11). |
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| Authors: | LI Jian-gang Du Yu-dong Wei Yan-ling ZHANG Jun-bo |
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| Institution: | LI Jian-gang,Du Yu-dong,Wei Yan-ling,ZHANG Jun-bo (Beijing General Municipal Engineering Design , Research Institute,Beijing 100082,China) |
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| Abstract: | Research purposes:The stability of the high-rise pier is always a critical factor for the safe of bridge.How to increase the stability of the high-rise pier,and at the same time make the appearance aesthetic and the force reasonable,is always a question for the engineers explored.The paper analyses the spacial stability for the double-shaft and thin-wall high-rise pier bridge of the Jing-Cheng-San-Qi Qingshuihe 2 #,with the three-dimensional finite element analysis software SAP2000,comparisons for the stabi... |
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| Keywords: | double-shaft and thin-wall high-rise pier rigid frame bridge collar beam stability |
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