| 冻融环境下FRP条带加固钢筋混凝土圆柱受力性能试验研究 |
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| 引用本文： | 李趁趁,刘丽娜,刘清霞.冻融环境下FRP条带加固钢筋混凝土圆柱受力性能试验研究[J].建筑科学,2009,25(9). |
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| 作者姓名： | 李趁趁 刘丽娜 刘清霞 |
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| 作者单位： | 1. 郑州大学土木工程学院,郑州,450002
2. 安阳工学院建筑工程系,河南,安阳,455000 |
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| 基金项目： | 河南省教育厅自然科学研究计划项目 |
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| 摘 要： | 通过碳纤维布(CFRP)和玻璃纤维布(GFRP)条带间隔粘贴加固钢筋混凝土圆柱在冻融循环作用下的轴心受压试验,分析冻融循环、纤维布类型对钢筋混凝土圆柱轴压性能的影响.结果表明,经过冻融循环作用之后,FRP条带加固钢筋混凝土圆柱的强度、刚度和延性均降低.在相同条件下,CFRP条带加固柱的强度与延性大于GFRP条带加固柱.引入混凝土强度、FRP强度退化模型,建立冻融循环环境下FRP条带加固钢筋混凝土圆柱的正截面受压承载力计算模型.
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| 关 键 词： | 纤维增强聚合物(FRP) 混凝土圆柱 冻融循环 条带间隔粘贴 耐久性 |
Experimental Study on Compressive Performance of FRP Strips Wrapped Reinforced Concrete Cylinders under Freeze-Thaw Cycles |
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| LI Chen-chen,LIU Li-na,LIU Qing-xia.Experimental Study on Compressive Performance of FRP Strips Wrapped Reinforced Concrete Cylinders under Freeze-Thaw Cycles[J].Building Science,2009,25(9). |
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| Authors: | LI Chen-chen LIU Li-na LIU Qing-xia |
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| Affiliation: | 1.Civil Engineering College;Zhengzhou University;Zhengzhou 450002;China;2.Construction Department;Anyang Institute of Technology;Anyang 455000;Henan;China |
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| Abstract: | The effects of freeze-thaw cycles and FRP type on compressive performance of reinforced concrete(RC) cylinders were studied by comparison between the compressive performances of specimens confined with carbon fiber reinforced polymer(CFRP) and glass fiber reinforced polymer(GFRP),which were experienced the freeze-thaw cycles.The experimental results show that strength,stiffness and ductility of RC cylinders strengthened by FRP decrease after freeze-thaw cycles.The strength and ductility of RC cylinders conf... |
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