| 矮墩连续刚构桥合龙顶推力研究 |
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| 引用本文： | 张茂龙,杨成斌.矮墩连续刚构桥合龙顶推力研究[J].湖南工程学院学报(自然科学版),2011(2):92-94. |
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| 作者姓名： | 张茂龙 杨成斌 |
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| 作者单位： | 合肥工业大学土木与水利工程学院,合肥,230009 |
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| 摘 要： | 连续刚构桥中跨合龙时需要通过施加顶推力对结构的内力状态进行预调整.结合工程实例,讨论了柔性基础矮墩连续刚构桥合龙顶推力的确定方法,分析了顶推前后结构的内力与变形规律,得出施加顶推力来主动调整内力可有效地改善桥梁结构的受力和使用状态,提高桥梁的耐久性.
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| 关 键 词： | 矮墩 连续刚构桥 柔性基础 合龙 顶推 |
Research on Closure Jacking Force of Low Pier Continuous Rigid Frame Bridge |
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| ZHANG Mao-long,YANG Cheng-bin.Research on Closure Jacking Force of Low Pier Continuous Rigid Frame Bridge[J].Journal of Hunan Institute of Engineering(Natural Science Edition),2011(2):92-94. |
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| Authors: | ZHANG Mao-long YANG Cheng-bin |
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| Institution: | ZHANG Mao-long,YANG Cheng-bin(School of Civil Engineering,Hefei University of Technology,Hefei 230009,China) |
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| Abstract: | The internal force of a continuous rigid frame bridge must be adjusted by jacking when its mid-span is in closure.The method of the closure jacking force of a low pier continuous rigid frame bridge with flexible foundation is discussed.By analyzing the principle of a specific project internal force and displacement after jacking,it is testified that jacking can improve not only the bridge state of working and bearing but also its durability. |
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| Keywords: | low pier continuous rigid frame bridge flexible foundation closure jacking |
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