| 重庆朝天门长江大桥施工控制压重方案设计 |
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| 引用本文： | 孙吉飚,向中富,邱麟,刘永棵.重庆朝天门长江大桥施工控制压重方案设计[J].重庆交通大学学报(自然科学版),2008,27(4):529-531,571. |
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| 作者姓名： | 孙吉飚 向中富 邱麟 刘永棵 |
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| 作者单位： | 重庆交通大学土木建筑学院,重庆,400074;重庆交通大学土木建筑学院,重庆,400074;重庆交通大学土木建筑学院,重庆,400074;重庆交通大学土木建筑学院,重庆,400074 |
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| 摘 要： | 朝天门长江大桥全长932 m,主桥为(190+552+190)m三跨连续单拱钢桁梁。结合主跨合龙特点介绍主跨合龙的思路、计算及操作要点,应用大型有限元分析程序MIDAS建立了朝天门长江大桥的三维有限元简化计算模型,并对其进行了施工过程控制分析。压重方案设计可以为同类桥梁的施工控制分析提供有益的思路。
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| 关 键 词： | 公铁两用桥 桁架桥 压重 MIDAS/CIVIL |
Heavy Pressure Program Design in Construction Control of Chongqing Chao Tianmen Yangtze River Bridge |
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| SUN Ji-biao,XIANG Zhong-fu,QIU Lin,LIU Yong-ke.Heavy Pressure Program Design in Construction Control of Chongqing Chao Tianmen Yangtze River Bridge[J].Journal of Chongqing Jiaotong University,2008,27(4):529-531,571. |
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| Authors: | SUN Ji-biao XIANG Zhong-fu QIU Lin LIU Yong-ke |
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| Abstract: | Chao Tianmen Yangtze River Bridge is 932 m in total length,of which the main bridge is designed as a 3 span continuous steel truss single arch and girder with a long span arrangement(190 m+552 m+190 m).Based on the char- acteristics of main span closure,the thought,calculation and key operation procedure of main span closure are introduced. With MIDAS,three-dimensioned finite element simplified calculation model of Chao Tianmen bridge is established,and the construction monitoring process is also analyzed.Heavy pressure program design in construction monitoring of a bridge can be a reference to that of the similar bridge. |
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| Keywords: | highway-railway bridge truss bridge heavy pressure MIDAS/CIVIL |
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