| 碳纤维布加固钢筋混凝土梁的DSCM实验研究 |
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| 引用本文： | 刘宁,赵颖华,金观昌,姚学锋,许蔚.碳纤维布加固钢筋混凝土梁的DSCM实验研究[J].工程力学,2004,21(4):179-183. |
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| 作者姓名： | 刘宁 赵颖华 金观昌 姚学锋 许蔚 |
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| 作者单位： | 1. 清华大学工程力学系,北京,100084
2. 沈阳建筑工程学院土木工程系,辽宁,110015 |
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| 基金项目： | 国家自然科学基金项目(19972033和19902008)，航空航天基金项目资助 |
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| 摘 要： | 通过用数字散斑相关方法(DSCM)对碳纤维布加固混凝土梁的实验,研究了碳布加固混凝土梁的承载力及变形行为。确定了碳纤维布加固混凝土梁在不同加载条件下的强度特征。并且用数字散斑相关方法实时记录了加载过程中反映试件变形信息的光学散斑图,确定了一些局部的变形特征,分析了其断裂机理。
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| 关 键 词： | 数字散斑相关方法 碳纤维布 加固 钢筋混凝土梁 断裂 |
| 文章编号： | 1000-4750(2004)04-0179-05 |
EXPERIMENTAL STUDY OF CONCRETE BEAMS STRENGTHENED WITH CARBON FIBER SHEET USING DIGITAL SPECKLE CORRELATION METHOD |
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| LIU Ning,ZHAO Ying-hua,JIN Guan-chang,YAO Xue-feng,XU Wei.EXPERIMENTAL STUDY OF CONCRETE BEAMS STRENGTHENED WITH CARBON FIBER SHEET USING DIGITAL SPECKLE CORRELATION METHOD[J].Engineering Mechanics,2004,21(4):179-183. |
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| Authors: | LIU Ning ZHAO Ying-hua JIN Guan-chang YAO Xue-feng XU Wei |
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| Affiliation: | LIU Ning1,ZHAO Ying-hua2,JIN Guan-chang1,YAO Xue-feng1,XU Wei1 |
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| Abstract: | An experimental study of the strength and deformation characteristics of carbon-fiber-sheet -reinforced concrete beams using digital speckle correlation method (DSCM) was performed. The strength characteristics of the beams under different loading conditions were measured and analyzed. The speckle patterns reflecting the deformation information of the strengthen beams were real-time recorded during the loading processes. The displacement and strains of the whole field were determined and the fracture mechanisms of specimens were analyzed at the same time. |
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| Keywords: | digital speckle correlation method carbon fiber sheet strengthening RC beams fracture |
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