| PVA-ECC加固RC足尺梁二次受力试验研究 |
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| 引用本文： | 卜良桃,陈 军,鲁 晨.PVA-ECC加固RC足尺梁二次受力试验研究[J].湖南大学学报(自然科学版),2011,38(1):1-7. |
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| 作者姓名： | 卜良桃 陈 军 鲁 晨 |
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| 作者单位： | 湖南大学,土木工程学院,湖南,长沙,410082 |
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| 基金项目： | 湖南省科技厅科研项目(2007CK3066) |
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| 摘 要： | 对7根足尺聚乙烯醇纤维水泥(PVA-ECC)加固的钢筋混凝土梁进行了正截面抗弯二次受力的试验研究,通过与另1根同配置未加固钢筋混凝土梁的试验结果的对比,研究了加固梁一次受力幅度及梁侧面纵筋加固高度对抗弯承载力和变形能力的影响.试验采用三面U型加固形式,量测试验梁裂缝分布形态、荷载-挠度曲线、钢筋和混凝土应变发展规律.试...
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| 关 键 词： | 加固 聚乙烯醇纤维水泥 钢筋混凝土梁 二次受力 加固高度 |
Experiment on Full-scale RC Beam Reinforced by Polyvinyl Alcohol-engineered Cementitious Composite Mortar in Flexure Subjected to Secondary Load |
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| BU Liang-tao,CHEN Jun,LU Chen.Experiment on Full-scale RC Beam Reinforced by Polyvinyl Alcohol-engineered Cementitious Composite Mortar in Flexure Subjected to Secondary Load[J].Journal of Hunan University(Naturnal Science),2011,38(1):1-7. |
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| Authors: | BU Liang-tao CHEN Jun LU Chen |
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| Institution: | BU Liang-tao,CHEN Jun,LU Chen(College of Civil Engineering,Hunan Univ,Changsha,Hunan 410082,China) |
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| Abstract: | An experiment study was conducted on the flexural behavior of reinforced concrete beam strengthened by Polyvinyl Alcohol-Engineered Cementitious Composite(PVA-ECC) mortar subjected to secondary load.Based on the comparison between test results of seven beams reinforced by PVA-ECC steel mesh and one general beam,the effect of once-loading extent and height of reinforcement at the side of RC beam on the flexural strength and deflections capacity was investigated.Beams were reinforced with U-shape,and the crac... |
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| Keywords: | strengthening polyvinyl alcohol-engineered cementitious composite RC beam secondary load height of reinforcement |
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