| 连续弯梁的支座体系转换控制技术 |
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| 引用本文： | 罗红春.连续弯梁的支座体系转换控制技术[J].兰州铁道学院学报,2007,26(4):78-80. |
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| 作者姓名： | 罗红春 |
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| 作者单位： | 铁道第五勘察设计院 北京102600 |
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| 基金项目： | 铁道部重点科研计划项目 |
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| 摘 要： | 采用悬臂法施工的体系转换技术已经非常成熟,而造桥机拼装连续弯梁还是一种全新的施工工艺,在造桥机施工的不同阶段,支座情况对箱梁受力影响很大,通过对支座反力和约束情况的分析,制定了支座预偏和支座横向限位等措施,有效地保障了桥梁结构的安全.
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| 关 键 词： | 造桥机 拼装 连续梁 弯梁 支座 体系转换 |
| 文章编号： | 1001-4373（2007）04-0078-03 |
| 修稿时间： | 2007-06-06 |
Transformation and Control Technology for Bearing System of Continuous Curved Beam |
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| Luo Hongchun.Transformation and Control Technology for Bearing System of Continuous Curved Beam[J].Journal of Lanzhou Railway University,2007,26(4):78-80. |
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| Authors: | Luo Hongchun |
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| Institution: | The Fifth Survey and Design Institute of China Railway, Beijing 102600, China |
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| Abstract: | In balanced cantilever erection of bridge beam,the technology of bearing system transformation is really ripe,while assembling continuous curved beam by bridge fabrication machine is a totally new method.At different stage of bridge fabrication,the bearing has great impact on box beam stress.An analysis was made of bearing reaction and confinement,and measures were made for pre-displacement and lateral limit of bearing to ensure the safety of bridge structure. |
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| Keywords: | bridge fabrication machine assembly continuous beam curved beam bearing system transformation |
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