| 温差对大跨度拱桥成拱状态影响分析 |
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| 引用本文： | 徐正强,唐小熊,黎小刚.温差对大跨度拱桥成拱状态影响分析[J].重庆交通大学学报(自然科学版),2011,30(1):9-12. |
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| 作者姓名： | 徐正强 唐小熊 黎小刚 |
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| 作者单位： | 1. 重庆交通大学,土木建筑学院,重庆,400074
2. 中冶建工有限公司,重庆,400050 |
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| 摘 要： | 针对大跨度拱桥合龙温差的问题,以新龙门大桥工程为依托,借助ANSYS有限元程序建立分析模型,开展了合龙温差对大跨度拱桥成拱线形、应力及承载力影响的分析.结果表明:合龙温差对合龙段线形、上弦杆拱脚截面应力、下弦杆拱顶截面应力都有显著影响.当合龙温差大于22℃时,为保证成拱线形及应力处于合理范围内,需要在合龙前采取调整措施...
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| 关 键 词： | 合龙温差 大跨度拱桥 线形 应力 承载力 |
Analysis on the Influence of Temperature Difference upon Arching Status of Long Span Arch Bridge |
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| XU Zheng-qiang,TANG Xiao-xiong,LI Xiao-gang.Analysis on the Influence of Temperature Difference upon Arching Status of Long Span Arch Bridge[J].Journal of Chongqing Jiaotong University,2011,30(1):9-12. |
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| Authors: | XU Zheng-qiang TANG Xiao-xiong LI Xiao-gang |
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| Institution: | XU Zheng-qiang1,TANG Xiao-xiong2,LI Xiao-gang1(1.School of Civil Engineering & Architecture,Chongqing Jiaotong University,Chongqing 400074,China,2.Metallurgical Construction Co.,Ltd,Chongqing 400050,China) |
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| Abstract: | Aiming at the closure temperature difference occurring in long span arch bridge,and taking the construction of Xinlongmen Bridge as a case study,the influence of closure temperature difference on the arching figure,the stress and the carrying capacity of long span arch bridge is analyzed,by establishing the analysis model by means of ANSYS finite element program.The research proves that the closure temperature difference has obvious effect on the figure of the joining segment,the foot section stress of uppe... |
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| Keywords: | closure temperature difference long span arch bridge figure stress carrying capacity |
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