| 龙城大桥钢索塔竖转施工关键技术 |
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| 引用本文： | 马恒.龙城大桥钢索塔竖转施工关键技术[J].现代交通技术,2008,5(3):50-53. |
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| 作者姓名： | 马恒 |
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| 作者单位： | 常州市航道管理处,江苏,常州,213004 |
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| 摘 要： | 龙城大桥索塔为钢索塔，材质采用Q345qc和Q420qd两种钢材组焊而成。出于对高空索塔节段接缝、焊接质量问题的考虑，索塔采用了在桥面上节段组拼后进行竖转施工的技术。在竖转施工时，应考虑变形的影响及焊接对索塔偏位的影响。
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| 关 键 词： | 龙城大桥 钢索塔 竖转施工 施工技术 |
Key Technology of Vertical Rotation Construction for the Steel Pylon of Longcheng Bridge |
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| Ma Heng.Key Technology of Vertical Rotation Construction for the Steel Pylon of Longcheng Bridge[J].Modern Transportation Technology,2008,5(3):50-53. |
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| Authors: | Ma Heng |
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| Institution: | Ma Heng (Changzhou Management Department of Navigation and Channels, Changzhou 213004, China) |
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| Abstract: | Welded steel structure was used in the pylon of Longcheng bridge, in which both grade Q345qc steel and grade Q420qd steel were utilized. Due to difficulties in welding quality control during working at heights by conventional construction method, the vertical rotation construction method was adopted for the pylon construction of Longcheng bridge. Based on this way, pylon pieces were assembled on deck surface firstly, then the whole pylon was rotated in vertical plane to it＇s final position. The deformation effect and effect of welding on pylon deviation in vertical rotation construction should be considered. |
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| Keywords: | Longcheng bridge steel pylon vertical rotation construction construction technology |
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