| GSIFCON材料拉敏特性及对梁构件机敏检测 |
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| 引用本文： | 洪雷.GSIFCON材料拉敏特性及对梁构件机敏检测[J].辽宁工程技术大学学报(自然科学版),2010,29(1). |
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| 作者姓名： | 洪雷 |
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| 作者单位： | 大连理工大学,海岸和近海工程国家重点实验室,辽宁,大连,116023 |
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| 基金项目： | 建设部研究开发基金资助项目(2008-K4-31);;大连市科技计划基金资助项目(2003-19) |
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| 摘 要： | 为了利用石墨水泥砂浆注浆钢纤维混凝土检测梁构件内部损伤,采用三根素混凝土梁对GISFCON的拉敏特性进行了研究。采用GSIFCON与钢筋混凝土梁叠合的方法,测定在不同应力作用下,梁构件破坏过程中GSFICON的电阻相对变化,来监测梁构件内部损伤情况。试验结果表明:GSIFCON材料的拉敏性能要高于其压敏性能4倍以上。在不同应力作用下,梁构件受拉区GSIFCON的电阻相对变化始终与梁构件损伤过程保持一一对应关系,可对梁构件损伤进行检测。研究结论为GSIFCON在智能结构中的应用提供了理论依据。
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| 关 键 词： | 拉敏特性 损伤 电阻 监测 |
Study on pulling sensitivity characteristics of graphite slurry infiltrated steel fiber concrete and smart monitoring of beam specimens |
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| HONG Lei.Study on pulling sensitivity characteristics of graphite slurry infiltrated steel fiber concrete and smart monitoring of beam specimens[J].Journal of Liaoning Technical University (Natural Science Edition),2010,29(1). |
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| Authors: | HONG Lei |
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| Institution: | State Key Laboratory of Coastal and Offshore Engineering;Dalian University of Technology;Dalian 116024;China |
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| Abstract: | In order to use Graphite Slurry Infiltrated Steel Fiber Concrete(GSIFCON)to monitor the internal damage of the beam specimens,the pulling sensitivity characteristics of GSIFCON were investigated by testing on 3 concrete beams. For monitoring the internal damage of the reinforced concrete beams,the relative variations of GSIFCON resistance during the destructive process were measured under different stress with reinforced concrete beams laminated by GSIFCON. The experimental results indicate that the pulling... |
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| Keywords: | pulling sensitivity characteristic damage resistance monitoring |
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