| 变截面连续刚构桥的线形监控 |
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| 引用本文： | 张东明,池彦宾,李亚林. 变截面连续刚构桥的线形监控[J]. 工业建筑, 2011, 0(Z1) |
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| 作者姓名： | 张东明 池彦宾 李亚林 |
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| 作者单位： | 重庆大学资源及环境科学学院;重庆市合川区重点办; |
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| 基金项目： | 国家自然科学基金(50604021) |
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| 摘 要： | 对于挂篮悬臂施工的预应力混凝土连续刚构桥来说,主梁的成桥线形主要取决于施工过程的控制。变截面连续刚构桥的建成要经历一个较长而复杂的施工过程,结构体系也会随着施工过程发生变化。为确保合理线形,需设置准确的预拱度和具备完善的线形监测体系。对设置预拱度的影响因素进行了分析,并利用有限元分析软件MIDAS CIVIL建立了涪江一桥的分析模型。结合合川区涪江一桥的现场监控实践,对线形监控成果进行了分析。
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| 关 键 词： | 悬臂施工 线形 预拱度 建模 监测 |
LINEAR CONTROL OF VARIABLE SECTION CONTINUOUS RIGID FRAME BRIDGE |
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| Zhang Dongming Chi Yanbin Li Yalin. LINEAR CONTROL OF VARIABLE SECTION CONTINUOUS RIGID FRAME BRIDGE[J]. Industrial Construction, 2011, 0(Z1) |
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| Authors: | Zhang Dongming Chi Yanbin Li Yalin |
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| Affiliation: | Zhang Dongming1 Chi Yanbin1 Li Yalin2(1.Resource and Environment Sciences College,Chongqing University,Chongqing 400044,China,2.Chongqing Hechuan Key Construction Office,Chongqing 401520,China) |
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| Abstract: | In cradle cantilever construction method of prestressed concrete bridge,the main beam linear depends on the control of the construction process.The completion of the bridge is a long and complicated construction process.The structure is changing in the construction process.To ensure a reasonable linear,the pre-camber should be set accurately and a perfect linear monitoring system is needed.The paper analyzed the influencing factors of pre-camber setting.Fujiang Bridge model was established using finite elem... |
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| Keywords: | cantilever construction linear pre-camber modeling monitoring |
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