| 桥梁施工中连续梁内力重分布程序设计及应用 |
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| 引用本文： | 李梓建,蔡敏. 桥梁施工中连续梁内力重分布程序设计及应用[J]. 合肥工业大学学报(自然科学版), 2005, 28(6): 661-664 |
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| 作者姓名： | 李梓建 蔡敏 |
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| 作者单位： | 合肥工业大学,土木建筑工程学院,安徽,合肥,230009;合肥工业大学,土木建筑工程学院,安徽,合肥,230009 |
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| 摘 要： | 在桥梁结构施工中,由于施工荷载以及连续梁的自重作用,使得连续梁的某些梁段脱离支座,发生内力重分布,危及结构安全。文章以连续梁的有限元方法为基础,提出了一种判断梁与支座脱离的方法,并给出了内力重分布的程序设计方法,可供实际工程中参考使用。
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| 关 键 词： | 连续梁 有限元法 支座反力 内力重分布 |
| 文章编号： | 1003-5060(2005)06-0661-04 |
| 修稿时间： | 2004-09-23 |
Program design of redistribution of internal force of the continuous beam during bridge construction and its application |
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| LI Zi-Jian,CAI Min. Program design of redistribution of internal force of the continuous beam during bridge construction and its application[J]. Journal of Hefei University of Technology(Natural Science), 2005, 28(6): 661-664 |
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| Authors: | LI Zi-Jian CAI Min |
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| Abstract: | During the construction of bridge structures, some sections of the continuous beam may deviate from bearings as a result of dead weight of the continuous beam or loading of construction. The internal force of the continuous beam will redistribute and endangers the security of bridge structures. In this paper,a method of judging the deviation between beams and bearings is presented based on the finite element method and program design of redistribution of the internal force is described. An application example is also given. The presented method can be used in practical engineering projects. |
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| Keywords: | continuous beam finite element method support pressure redistribution of internal force |
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