| 长联空心板拼接方案研究 |
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| 引用本文： | 刘桂红.长联空心板拼接方案研究[J].中南公路工程,2011(5):40-43. |
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| 作者姓名： | 刘桂红 |
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| 作者单位： | 广东省公路勘察规划设计院股份有限公司; |
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| 基金项目： | 广东省交通运输厅科技项目(2011-02-035) |
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| 摘 要： | 对于原桥为长联结构连续空心板结构，研究满足结构受力、施工及运营安全需要的最佳方案。以广深高速太平立交主线桥为例，对该桥拼接结构进行了构造设计和计算分析，结果表明，对于长联空心板拼接，扩建桥采用简支结构刚性拼接方式、可减少新老桥收缩徐变差；端部宜采用刚性横梁连接以平衡新老桥挠度角差。
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| 关 键 词： | 长联空心板 收缩 刚性拼接 构造设计 |
Study on Splicing Method of Long Span Hollow Slab |
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| LIU Guihong.Study on Splicing Method of Long Span Hollow Slab[J].Central South Highway Engineering,2011(5):40-43. |
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| Authors: | LIU Guihong |
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| Institution: | LIU Guihong(Guangdong highway design institute CO.,LTD.,Guangzhou 510510,China) |
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| Abstract: | As to the situation that upper structure of old bridge is long span hollow slab,study the best scheme satisfied stress required,eonstruetuion and serving. Take the ease of Guangsheng flyouver, struetrue design and calculation is carried out. The result shows, when long span hollow slab is widen, simply supported rigid splicing system is the best scheme,which is of benefit to reducing shrinkage and creep difference ; And rigid transverse beam in end can reducing difference of deflection angle. The above design method is of great value to widen engineering. |
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| Keywords: | The long span hollow slab Srinkage and creep Rigid splicing Structrue design |
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