| 利用MIDAS梁格模型研究旧桥加宽-新老桥拼接问题 |
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| 引用本文： | 邱燕红. 利用MIDAS梁格模型研究旧桥加宽-新老桥拼接问题[J]. 广东土木与建筑, 2011, 0(7): 59-62 |
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| 作者姓名： | 邱燕红 |
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| 作者单位： | 广东省冶金建筑设计研究院 |
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| 摘 要： | 依托广佛高速公路上某跨河大桥改扩建工程中的预应力混凝土简支转连续T梁桥,建立空间梁格模型对旧桥加宽连接后的结构受力性能,新老桥的连接时间以及新老桥横向拼接的施工工艺进行了研究,有限元分析结果表明,延迟新老桥连接时间能有效改善新老桥拼接粱的受力情况,减少新旧混凝土收缩徐变差异影响.
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| 关 键 词： | 旧桥加宽 梁格法 横向连接方式 连接时间 |
Research of Bridge Widening by Grillage Method with MIDAS |
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| Qiu Yanhong. Research of Bridge Widening by Grillage Method with MIDAS[J]. Guangdong Architecture Civil Engineering, 2011, 0(7): 59-62 |
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| Authors: | Qiu Yanhong |
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| Affiliation: | Qiu Yanhong(Guangdong Metallurgical and Architectural Design Institute Guangzhou 510080,China) |
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| Abstract: | According to the prestressed concrete T-Girder bridge in the reconstruction and extension projects of Guangzhou-Foshan expressway,this paper mainly studies the load performance of old bridge widening,connection time and transverse connection way.The result shows that postponing the connection time is effective to improve the mechanic performance. |
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| Keywords: | old bridge widening grillage method transverse connection way connection time |
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