| CFRP加固RC开孔平板开裂荷载的一种计算方法 |
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| 引用本文： | 张益多,刘荣桂,朱红梅.CFRP加固RC开孔平板开裂荷载的一种计算方法[J].江苏科技大学学报(社会科学版),2006,20(5):14-18. |
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| 作者姓名： | 张益多 刘荣桂 朱红梅 |
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| 作者单位： | 江苏科技大学船舶与海洋工程学院 江苏镇江212003(张益多)，江苏大学理学院 江苏镇江212013(刘荣桂，朱红梅) |
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| 摘 要： | 钢筋混凝土板开孔后,由于板的承载力和刚度的降低往往需要加固,孔周围尤其是孔角处由于应力集中一般首先产生裂缝,裂缝的产生对构件的使用性能及耐久性都有着重要的影响。这里介绍了一种有限元与理论分析相结合的碳纤维布加固RC开孔平板的开裂荷载计算方法,在碳纤维布宽度一定的条件下,该方法的计算结果与试验值吻合较好,具有较高的精度。
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| 关 键 词： | 碳纤维增强复合材料 钢筋混凝土平板 加固 开孔 有限元分析 开裂荷载 |
| 文章编号： | 1673-4807（2006）05-0014-05 |
| 收稿时间： | 2006-04-12 |
| 修稿时间： | 2006年4月12日 |
A Method for Calculating Cracking Load of RC Flat Plates with Opening Strengthened by CFRP |
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| ZHANG Yiduo,LIU Ronggui,ZHU Hongmei.A Method for Calculating Cracking Load of RC Flat Plates with Opening Strengthened by CFRP[J].Journal of Jiangsu University of Science and Technology:Natural Science Edition,2006,20(5):14-18. |
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| Authors: | ZHANG Yiduo LIU Ronggui ZHU Hongmei |
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| Institution: | 1, School of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology., Zhenjiang Jiangsu 212003,China; 2. Faculty of Science, Jiangsu University, Zhenjiang Jiangsu 212013 ,China |
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| Abstract: | Due to the opening the RC flat plates always need to be strengthened.The existence of the opening on the flat plates will lower the ultimate capacity and the rigidity.The stress concentration of the concrete taking place at the surrounding of the opening especially at the corner often causes the initial crack.The crack has great influence on the durability and service capacity of the RC plate.A formula is put forward to calculate the cracking load with the combination of the theoretical analysis and finite element analysis.The calculation results proved coincident with the experimental value. |
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| Keywords: | carbon-fiber reinforced polymer RC flat plate strengthen opening finite element analysis crack load |
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