| 混凝土斜拉桥塔梁临时固结构造设计 |
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| 引用本文： | 曹海顺,廖宜勤. 混凝土斜拉桥塔梁临时固结构造设计[J]. 桥梁建设, 2007, 0(1): 51-53,56 |
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| 作者姓名： | 曹海顺 廖宜勤 |
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| 作者单位： | 1. 上海浦东建筑设计研究院有限公司,上海,201204
2. 江西同济工程咨询有限公司,江西,南昌,330025 |
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| 摘 要： | 在混凝土斜拉桥主梁悬臂施工过程中,采用传统的塔梁临时固结构造存在临时固结处的主梁容易开裂问题。为此,以某实桥为例,在对传统临时固结进行分析后构思了新的临时固结构造。分析表明,新构思的临时固结满足预期要求并能避免主梁开裂。
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| 关 键 词： | 斜拉桥 悬臂灌筑 临时固结 施工设计 |
| 文章编号： | 1003-4722（2007）01-0051-03 |
| 修稿时间： | 2006-07-17 |
Design of Temporary Rigid Fixity Structure for Pylon and Girder of Concrete Cable-Stayed Bridge |
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| CAO Hai-shun,LIAO Yi-qin. Design of Temporary Rigid Fixity Structure for Pylon and Girder of Concrete Cable-Stayed Bridge[J]. Bridge Construction, 2007, 0(1): 51-53,56 |
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| Authors: | CAO Hai-shun LIAO Yi-qin |
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| Abstract: | During the cantilever construction of main girder of a concrete cable-stayed bridge,the main girder at the temporary rigid fixity area of pylon and girder is vulnerable to cracking when the conventional temporary rigid fixity structure is used.In this paper,by way of example of a practical bridge project and through analysis of the conventional rigid fixity structure,a novel temporary rigid fixity structure is designed.The results of analysis in the paper reveal that the novel rigid fixity structure can satisfactorily accord with the expected requirements and can avert cracking in the main girder. |
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| Keywords: | cable-stayed bridge cast-in-place cantilever construction temporary rigid fixity construction design |
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