| 双向连续弯箱梁匝道桥同步顶升精度控制和支座更换关键技术 |
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| 引用本文： | 徐巧元,曹晓东,翟瑞兴. 双向连续弯箱梁匝道桥同步顶升精度控制和支座更换关键技术[J]. 现代交通技术, 2013, 10(2): 56-59 |
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| 作者姓名： | 徐巧元 曹晓东 翟瑞兴 |
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| 作者单位： | 1. 苏州苏嘉杭高速公路有限公司,江苏苏州,215006
2. 常州华瑞特种加固技术工程有限公司,江苏常州,213031 |
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| 摘 要： | 结合对连续弯箱梁双向匝道桥（曲线梁桥）在营运中侧向移位进行同步顶升和支座更换的实施过程，探讨了连续弯箱梁结构的同步硕升安全控制指标；提出同步顶升应以位移控制为主的控制方法以及同步顶升的精度控制要求；总结了连续多跨曲线梁匝道桥同步顶升精度控制、支座更换的施工工艺要点和关键技术。
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| 关 键 词： | 匝道桥 连续弯箱梁 同步顶升纠偏 支座更换 位移控制 顶升设备 |
Precision Control of Synchronous Lifting and Key Technologies of Bearing Replacement for Two-way Continuous Curved Box Girder Ramp Bridge |
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| Xu Qiaoyuan , Cao Xiaodong , Zhai Ruixing. Precision Control of Synchronous Lifting and Key Technologies of Bearing Replacement for Two-way Continuous Curved Box Girder Ramp Bridge[J]. Modern Transportation Technology, 2013, 10(2): 56-59 |
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| Authors: | Xu Qiaoyuan Cao Xiaodong Zhai Ruixing |
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| Affiliation: | 1. Suzhou Su-Jia-Hang Expressway Co. Ltd, Suzhou 215006, China; 2. Changzhou HUARUI Special Reinforcement Engineering Co., Ltd., Changzhou 213031, China) |
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| Abstract: | On the basis of implementation of synchronous lifting and the bearing replacement by lateral shift for a two-way continuous curved box girder ramp bridge during period of the operation, this paper discussed safety control indexes of synchronous lifting for continuous curved box girder structure. It proposed that synchronous lifting should give priority to dis- placement control and meet the requirements of precision control. Then key points of construction technology of synchronous lifting and bearing replacement for continuous curved box girder ramp bridges are summarized. |
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| Keywords: | ramp bridge continuous curved box girder synchronous lifting correction bearing replacement displacement control lifting equipment |
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