| 鄂东大桥混合梁斜拉桥合龙技术 |
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| 引用本文： | 刘明虎,谭皓,徐国平,赵灿晖. 鄂东大桥混合梁斜拉桥合龙技术[J]. 中国工程科学, 2011, 13(10): 99-104 |
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| 作者姓名： | 刘明虎 谭皓 徐国平 赵灿晖 |
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| 作者单位： | 1. 中交公路规划设计院有限公司,北京,100088
2. 西南交通大学土木学院,成都,610031 |
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| 摘 要： | 结合世界第二混合梁斜拉桥——主跨926 m的鄂东大桥,研究了大跨径混合梁斜拉桥中跨合龙方案的影响因素及关键技术,确定采用加载合龙方案。加载合龙方法具有较好的温度适应性,对成桥结构线形和受力影响很小,满足无应力施工控制方法的要求,适用于大跨径混合梁斜拉桥。研究成果及实践经验对同类型桥梁具有借鉴指导意义。
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| 关 键 词： | 鄂东大桥 混合梁斜拉桥 合龙技术 加载合龙 无应力状态控制法 |
| 收稿时间： | 2010-11-04 |
| 修稿时间： | 2010-11-04 |
Closure technique for the hybrid girder cable-stayed bridge of Edong Bridge |
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| Liu Minghu,Tan Hao,Xu Guoping and Zhao Canhui. Closure technique for the hybrid girder cable-stayed bridge of Edong Bridge[J]. Engineering Science, 2011, 13(10): 99-104 |
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| Authors: | Liu Minghu Tan Hao Xu Guoping Zhao Canhui |
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| Affiliation: | Liu Minghu1,Tan Hao1,Xu Guoping1,Zhao Canhui2(1.CCCC Highway Planning and Design Consultants Co.,Ltd.,Beijing 100088 China,2.Civil Engineering Institute,Southwest Jiaotong University,Chengdu 610031,China) |
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| Abstract: | Based on Edong Bridge,which is the second longest hybrid girder cable-stayed bridge with 926 m long main span,the influencing factors and crucial techniques of the main span closure method for long span hybrid girder cable-stayed bridge are studied.After theoretical analysis,numerical evaluation and practical test,the loading assistant closure method is employed in Edong Bridge.The loading assistant closure method,with better thermal adaptability and less influence on bridge line and the forced status,can m... |
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| Keywords: | Edong Bridge hybrid girder cable-stayed bridge closure technique loading assistant closure method unstressed state control method |
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