| 矮塔斜拉桥塔梁同步施工可行性分析 |
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| 引用本文： | 熊琦,郭辉,刘爱林,苏朋飞,戴福忠. 矮塔斜拉桥塔梁同步施工可行性分析[J]. 铁道建筑, 2019, 0(7): 37-41 |
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| 作者姓名： | 熊琦 郭辉 刘爱林 苏朋飞 戴福忠 |
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| 作者单位： | 中国铁道科学研究院研究生部;中国铁道科学研究院集团有限公司铁道建筑研究所;中铁大桥局集团有限公司 |
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| 基金项目： | 中国铁道科学研究院基金(2018YJ048) |
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| 摘 要： | 以芜湖长江公铁大桥为例,对塔梁同步施工方案进行可行性分析,研究塔梁同步施工中的不平衡荷载及相应控制措施,提出最佳测量放样时机。针对塔梁同步施工存在的多空间层面作业问题,提出安全防范措施。研究结果表明:塔梁同步施工结束调整索力后主塔应力状态与先塔后梁施工基本一致。
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| 关 键 词： | 公铁两用桥梁 塔梁同步施工 可行性分析 斜拉桥 施工控制 |
Feasibility Analysis of Synchronous Construction of Pylon and Girder in Extradosed Cable-stayed Bridge |
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| XIONG Qi,GUO Hui,LIU Ailin,SU Pengfei,DAI Fuzhong. Feasibility Analysis of Synchronous Construction of Pylon and Girder in Extradosed Cable-stayed Bridge[J]. Railway Engineering, 2019, 0(7): 37-41 |
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| Authors: | XIONG Qi GUO Hui LIU Ailin SU Pengfei DAI Fuzhong |
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| Affiliation: | (Postgraduate Department,China Academy of Railway Sciences,Beijing 100081,China;Railway Engineering Research Institute,China Academy of Railway Sciences Group Co. Ltd. ,Beijing 100081,China;China Railway Major Bridge Engineering Group Co. Ltd. ,Wuhu Anhui 241001,China) |
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| Abstract: | Wuhu Yangtze River Rail-cum-road Bridge was case-studied in this paper.The feasibility of the synchronous construction of pylon and girder was analyzed,and the unbalanced loads and the corresponding control measures during the construction were studied.The optimal time for measurement lofting was put forward.Multi-space level problem in the synchronous construction of pylon and girder is signif icant , thus,safety measures were proposed.The research results show that the stress state of the main pylon after adjusting the cable force at the end of synchronous construction is basically the same as that in the construction scheme of tower f irst and girder next. |
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| Keywords: | Rail-cum-road bridge Synchronous construction of pylon and girder Feasibility analysis Cable-stayed bridge Construction control |
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