| 刚构桥悬臂阶段的预应力剪力滞效应分析 |
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| 引用本文： | 李旺丰,虞建成.刚构桥悬臂阶段的预应力剪力滞效应分析[J].黑龙江工程学院学报,2006,20(4):33-36. |
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| 作者姓名： | 李旺丰 虞建成 |
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| 作者单位： | 东南大学交通学院,江苏南京210096 |
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| 摘 要： | 根据一座主桥为三跨连续刚构桥的悬臂施工过程,计算分析悬臂施工阶段预应力荷载产生的箱梁剪力滞效应,研究该类桥在整个悬臂施工过程中,每个阶段预应力荷载产生的箱梁剪力滞效应,以及一些关键截面剪力滞效应的变化规律,结果表明:在悬臂施工过程中,悬臂预应力束会对箱梁产生正负剪力滞效应.
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| 关 键 词： | 悬臂施工 宽箱梁 剪力滞 预应力 ANSYS8.0 |
| 文章编号： | 1671-4679(2006)04-0033-04 |
| 收稿时间： | 03 5 2006 12:00AM |
| 修稿时间： | 2006年3月5日 |
Analysis of shear lag under the load case of prestress in the process of continuous rigid-frame box girder bridge |
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| LI Wang-feng,YU Jian-cheng.Analysis of shear lag under the load case of prestress in the process of continuous rigid-frame box girder bridge[J].Journal of Heilongjiang Institute of Technology,2006,20(4):33-36. |
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| Authors: | LI Wang-feng YU Jian-cheng |
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| Affiliation: | College of Transportation, Southeast University, Nanjing 210096,China |
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| Abstract: | According to the structure characters of a typical three-span pre-stressed concrete continuous rigid- frame box girder bridgewith single cell, the spatial analysis of box girder bridge is made in the process of cantilever cast-in-place constructing. Research of shear lag is made under the load case of prestress according to the results, in the process of cantilever cast -in - place constructing. |
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| Keywords: | cantilever cast-in-place wide box-beam shear lag prestress ANSYS8 0 |
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