| CFRP加固带裂缝双向板的计算及有限元分析 |
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| 引用本文： | 张可乐,周立欣,董亚男.CFRP加固带裂缝双向板的计算及有限元分析[J].黑龙江科技学院学报,2009,19(4):301-305. |
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| 作者姓名： | 张可乐 周立欣 董亚男 |
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| 作者单位： | 中国矿业大学,建筑工程学院,江苏,徐州,221008 |
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| 摘 要： | 针对工程实例中钢筋混凝土双向板出现裂缝的问题,提出碳纤维布（CFRP）加固方法,给出CFRP用量的计算公式,并根据该加固方法,利用有限元软件ANSYS建立了带裂缝的钢筋混凝土双向板的有限元模型,分别分析了未开裂、开裂及加固后双向板的受力状态,验证了加固效果。结果表明：对挠度的加固效果η=5.3%,对vonmises应力的加固效果η=20.2%,CFRP加固双向板对承载力的加固效果优于刚度。
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| 关 键 词： | 碳纤维布 加固 双向板 有限元 |
Calculation and FE analysis of CFRP method designed for strengthening cracked two-way RC slab |
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| ZHANG Kele,ZHOU Lixin,DONG Ya'nan.Calculation and FE analysis of CFRP method designed for strengthening cracked two-way RC slab[J].Journal of Heilongjiang Institute of Science and Technology,2009,19(4):301-305. |
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| Authors: | ZHANG Kele ZHOU Lixin DONG Ya'nan |
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| Institution: | ZHANG Kele, ZHOU Lixin, DONG Ya＇ nan (School of Civil Engineering and Architecture, China University of Mining and Technology, Xuzhou 221008, China) |
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| Abstract: | Aimed at cracks occurring in two-way RC slab in a certain project,this paper introduces the method of strengthening CFRP,the calculation formula for quantity of CFRP and an FE model for cracked two-way RC slab developed according to the method of strengthening and by adopting finite element（FE） software ANSYS.The paper offers an analysis of the loading state of two-way RC slab with no crackes,cracked and after strenthening respectively and verifies the effectiveness of the strengthening.The results show the effectiveness of the strengthening for deflection η=5.3% and for vonmises stress η=20.2% ,and the effectiveness of the strengthening for carrying capacity proves to be more obvious than that of stiffness. |
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| Keywords: | CFRP strengthen two-way slab FE |
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