| 合龙及体系转换顺序对多跨刚构-连续组合梁桥影响分析 |
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| 引用本文： | 易锦,贺国京,陆杰,唐志奇,舒丹.合龙及体系转换顺序对多跨刚构-连续组合梁桥影响分析[J].长沙铁道学院学报,2013(5):23-27. |
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| 作者姓名： | 易锦 贺国京 陆杰 唐志奇 舒丹 |
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| 作者单位： | [1]中南林业科技大学土木工程与力学学院,湖南长沙410004 [2]株洲市公路管理局,湖南株洲412000 [3]中铁二十五局集团公司第三工程公司,湖南长沙410075 |
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| 基金项目： | 国家自然科学基金资助项目（51108470）,湖南省教育厅高等学校科学研究一般项目（09C1022）,湖南省重点学科建设资助项目（2012ZDXK003） |
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| 摘 要： | 以长株潭城际铁路湘江特大桥12跨刚构一连续组合梁桥为工程背景，建立有限元分析模型，对5种合龙方案和3种体系转换顺序进行数值模拟，计算该桥竖向位移和底板应力，探讨合龙次序和体系转换顺序对该类桥梁的受力和变形规律，得出宜采用方案1、2或者5的合龙顺序和方案3的体系转换顺序的结论，为同类桥梁设计和施工提供借鉴和参考。
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| 关 键 词： | 刚构-连续组合梁桥 合龙顺序 体系转换 竖向位移 应力 |
Impact analysis of closure order and system transformation order for bridges with rigid frame -combined continuous beam |
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| YI Jin,HE Guojing,LU Jie,TANG Zhiqi,SHU Dan.Impact analysis of closure order and system transformation order for bridges with rigid frame -combined continuous beam[J].Journal of Changsha Railway University,2013(5):23-27. |
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| Authors: | YI Jin HE Guojing LU Jie TANG Zhiqi SHU Dan |
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| Institution: | 3 College of Civil Engineering and Mechanics, Central South University of Forestry and Technology, Changsha 410004, China 2. Highway administration of Zhuzhou, Zhuzhou 412000, China ; 3. the third filiale of China railway 25th bureau group, Co. Ltd. China railway 25th, Changsha 410075, China) |
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| Abstract: | Taking Xiangjiang bridge on changzhutan intercity railway as an engineering background, which is 12 span bridge with rigid frame - combined continuous beam in cantilever pouring construction, the finite element model was constructed respectively. 5 conventional closure options and 3 system transformation orders were simu- lated to calculate the vertical displacement and stress of the bridge. The stress and deformation were discussed under different closure orders and system transformation orders on the general rules for such similar bridge were discussed. The results show that plan 1,2or5 closure sequence and plan 3 system transformation are appropriate. The idea has certain referential value for the designing and constructing of same type bridge. |
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| Keywords: | rigid frame - combined continuous beam closure sequence system transformation vertical displacement stress |
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