| 后张法预应力简支箱梁的反拱设置 |
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| 引用本文： | 李星星. 后张法预应力简支箱梁的反拱设置[J]. 企业技术开发, 2010, 29(3): 58-59 |
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| 作者姓名： | 李星星 |
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| 作者单位： | 岳阳市107国道管理处; |
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| 摘 要： | 通过对预应力砼箱梁的徐变和施加预应力上拱值的分析研究,合理设置反拱,能够保证桥面线形顺畅、铺装层厚度及梁体结构受力安全。文章介绍了某高速公路特大桥的后张法预应力砼简支梁反拱值的设置,供同类工程施工参考。
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| 关 键 词： | 后张法 徐变 预应力 箱梁反拱设置 |
Precamber setting for post-tensioned pre-stressed concrete simply supported box beam |
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| LI Xing-xing. Precamber setting for post-tensioned pre-stressed concrete simply supported box beam[J]. Technological Development of Enterprise, 2010, 29(3): 58-59 |
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| Authors: | LI Xing-xing |
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| Affiliation: | LI Xing-xing (Yueyang Highway Administration,Yueyang,Hunan 414000,China) |
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| Abstract: | According to the analysis of the creep and precamber setting in pretressed concrete box girder,the reasonable precamber which can ensure the bridge deck alignment porper,thickness of deck pavement and structural safety has been established. This paper introduces the precamber setting in prestressed concrete simply supported beam by post-tensioning method in a certain ex-press highway ,the experience can be referred by similar construction projects. |
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| Keywords: | post-tensioning method creep prestressed box girder precamber setting |
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