| 无粘结预应力开洞平板的试验和有限元分析 |
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| 引用本文： | 刘荣桂,李成绩,徐力.无粘结预应力开洞平板的试验和有限元分析[J].江苏大学学报(自然科学版),2004,25(5):445-448. |
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| 作者姓名： | 刘荣桂 李成绩 徐力 |
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| 作者单位： | 江苏大学理学院,江苏,镇江,212013 |
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| 基金项目： | 教育部重点实验室开放基金资助项目 |
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| 摘 要： | 现代建筑辅助设施常常需要从楼板中开洞穿过，楼板开洞后，力学性能会发生变化．作者在三块无粘结预应力开洞平板的试验基础上，通过与未开孔板的比较，对预应力平板开洞前后、有无预应力以及边界条件改变后的内力变化等问题进行了分析论述．采用有限元计算的方法与试验进行对比，计算结果与试验结果较吻合．在正确的计算模型的基础上，对预应力平板的内力及变形受开洞的影响进行了进一步的分析．得到的计算结果对无粘结预应力开洞板的工程设计和配筋有一定的应用和参考价值．
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| 关 键 词： | 开洞板 无粘结预应力 边界条件 有限元 |
| 文章编号： | 1671-7775(2004)05-0445-04 |
| 修稿时间： | 2004年3月18日 |
Experiment on un-banded pre-stressed slabs with openings and finite element analysis |
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| LIU Rong-gui,LI Cheng-ji,XU Li.Experiment on un-banded pre-stressed slabs with openings and finite element analysis[J].Journal of Jiangsu University:Natural Science Edition,2004,25(5):445-448. |
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| Authors: | LIU Rong-gui LI Cheng-ji XU Li |
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| Abstract: | Modern auxiliary equipment often needs to go through floors by openings. The reinforced concrete plate changes its mechanical behavior after opening. Based on the experiment of three un-banded pre-stressed slabs with openings, the comparison with slabs without openings is presented. The problems of the change of mechanical behavior due to opening, pre-stress and different boundary condition are analyzed and discussed. The results from finite element method fit well with the experimental results. And further analysis on the pre-stressed slab's mechanical capabilities after opening is studied through finite element computation. The results obtained provide references in the engineering applications. |
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| Keywords: | slab with opening un-banded pre-stressed boundary condition finite element |
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