| 客运专线大跨连续梁桥徐变效应分析 |
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| 引用本文： | 王翔,王志艳,陈长明.客运专线大跨连续梁桥徐变效应分析[J].城市轨道交通研究,2011,14(6):68-70. |
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| 作者姓名： | 王翔 王志艳 陈长明 |
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| 作者单位： | 王翔,王志艳,Wang Xiang,Wang Zhiyan(同济大学土木工程学院,200092,上海);陈长明,Chen Changming(中铁大桥局有限公司,430050,武汉) |
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| 摘 要： | 混凝土徐变是影响客运专线上的预应力混凝土连续梁桥轨道平顺性的一个重要因素,并且对于悬臂浇筑施工及徐变引起的梁端变形也会影响主跨的合龙.介绍并探讨了目前国内外常用的徐变模型以及徐变效应的计算方法.通过对杭甬客运专线上某大跨连续梁桥的收缩徐变进行计算,并与实测值进行比较,分析其施工阶段的徐变效应.
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| 关 键 词： | 客运专线 连续梁 徐变 |
Creep Effect Simulation of Long-span Continuous Railway Bridge |
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| Wang Xiang,Wang Zhiyan,Chen Changming.Creep Effect Simulation of Long-span Continuous Railway Bridge[J].Urban Mass Transit,2011,14(6):68-70. |
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| Authors: | Wang Xiang Wang Zhiyan Chen Changming |
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| Institution: | Wang Xiang,Wang Zhiyan,Chen Changming Department of Bridge Engineering in Tongji University,200092,Shanghai,China |
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| Abstract: | Concrete creep is important to influence the prestressed concrete continuous beam of railway bridge's smooth track.And creep deflection at beam end affects the closure of main span during the cantilever construction. This paper describes the common creep model and creep calculation used in China and abroad,calculates the creep of a long-span continuous beam bridge on Hangzhou-Ningbo special passenger line,compares this result with real measured values.By analyzing the creep effect during construction, some ... |
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| Keywords: | special passenger line continuous beam bridge creep |
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