| 高墩大跨连续刚构桥的横向应力分析 |
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| 引用本文： | 李俊.高墩大跨连续刚构桥的横向应力分析[J].福建建筑,2011(5):89-91. |
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| 作者姓名： | 李俊 |
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| 作者单位： | 深圳市市政设计研究院有限公司; |
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| 摘 要： | 以某大桥三跨预应力混凝土变截面连续箱梁桥为背景,采用二维杆系有限元模型,从顶板横向应力方面对该桥的跨中截面尺寸及横向预应力筋配束进行了优化设计。同时采用三维实体有限元模型,对该桥顶板的横向应力结果进行了对比验证分析,证明了对横向应力分析采用闭合框架法的安全合理性,揭示了这种结构的横向应力分布规律,对同类设计及施工有一定的参考价值。
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| 关 键 词： | 箱梁横向应力 二维杆系 三维实体 横向配束 |
Transverse stress analysis of Hong He Bridge |
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| Li Jun.Transverse stress analysis of Hong He Bridge[J].Fujian Architecture & Construction,2011(5):89-91. |
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| Authors: | Li Jun |
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| Affiliation: | Li Jun (Shenzhen Municipal Design & Research Institute Co.,Ltd Shenzhen 518029) |
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| Abstract: | The background of the paper is a three-span prestressed concrete continuous box girder bridge of a Bridge,by establishing two-dimension finite element model with bar unit,the section size in mid-span and transverse distributed prestressed reinforcement are optimized.In the meanwhile,by establishing three-dimension finite element model with solid unit,the result of transverse stress in top plate is compared and checked.The conclusion is that taking the closed frame method to analyze transverse stress is safe... |
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| Keywords: | The transverse stress of box girder Two-dimension finite element model with bar unit Three-dimension finite element model with solid unit Transverse distributed prestressed reinforcement |
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