| 体外预应力筋加固简支梁的对比分析 |
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| 引用本文： | 李科,张云峰,徐雅峰.体外预应力筋加固简支梁的对比分析[J].低温建筑技术,2010,32(5):56-57. |
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| 作者姓名： | 李科 张云峰 徐雅峰 |
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| 作者单位： | 1. 大庆石油学院土木建筑工程学院,黑龙江,大庆,163318
2. 大庆油田建设集团道路管理公司,黑龙江,大庆,163416 |
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| 摘 要： | 运用ANSYS软件进行了不同线型的体外预应力筋加固简支梁的有限元分析。模型中考虑了材料非线性、几何非线性,忽略了梁体与转向块处、体外索的摩擦,将模拟结果与试验梁实测值比较,结果表明有限元模型精度较高,结果吻合良好。利用仿真分析方法,模拟了在施加体外预应力及加载过程中混凝土梁应力、挠度及极限荷载的变化,转向块对应力、挠度等的影响。
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| 关 键 词： | 体外预应力 承载能力 转向块 |
COMPARATIVE ANALYSIS ON REINFORCED CONCRETE SIMPLE SUPPORTED BEAMS REINFORCED BY THE EXTERNALLY PRESTRESSING TENDONS |
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| LI Ke,ZHANG Yun-feng,XU Ya-feng.COMPARATIVE ANALYSIS ON REINFORCED CONCRETE SIMPLE SUPPORTED BEAMS REINFORCED BY THE EXTERNALLY PRESTRESSING TENDONS[J].Low Temperature Architecture Technology,2010,32(5):56-57. |
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| Authors: | LI Ke ZHANG Yun-feng XU Ya-feng |
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| Affiliation: | LI Ke1,ZHANG Yun-feng1,XU Ya-feng2(1.School of Civil Engineering,Daqing petroleum institute,Heilongjiang Daqing163318,China,2.Road Management Company of Daqing Oilfield Construction Group,Heilongjiang Daqing 163416,China) |
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| Abstract: | Based on ANSYS software,a nonlinear finite element analysis is performed on Reinforced Concrete Simple Supported Beams Reinforced by the Externally Prestressing tendons with different line shapes.Geometric and material nonlinear are considered in model,friction of external cable and beam and rotation block is ignored.Calculated value of ANSYS and actual value are compared,and it is shown that the precision of the model is high,both are in good agreement.Changing situation of stress and displacement for the ... |
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| Keywords: | externally prestress bearing capacity rotation block |
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