| FBG传感器实时监测CFRP加固RC梁荷载效应研究 |
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| 引用本文： | 卢少微,谢怀勤.FBG传感器实时监测CFRP加固RC梁荷载效应研究[J].武汉理工大学学报,2006,28(8):69-72. |
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| 作者姓名： | 卢少微 谢怀勤 |
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| 作者单位： | 哈尔滨工业大学材料科学与工程学院,哈尔滨,150001 |
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| 基金项目： | 黑龙江省自然科学基金;黑龙江省哈尔滨市科技攻关项目 |
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| 摘 要： | 用埋入布拉格光栅（FBG）光纤传感器的CFRP加固RC梁可实现加固和实时健康监测双重功能。通过监测RC梁承载过程中FBG传感器波长来监测CFRP层应变，根据加固梁实时荷载效应计算理论得出受拉钢筋、压区混凝土的实时应变和实时测算荷载。通过4根RC梁的荷载效应实验发现，FBO光纤传感器与传统应变片有完全一致的线性关系；计算所得RC梁受拉钢筋、压区混凝土实时应变和实时荷载与实测值都吻合得较好。
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| 关 键 词： | 布拉格光栅光纤传感器 碳纤维复合材料 钢筋混凝土梁 加固 荷载效应 |
| 文章编号： | 1671-4431(2006)08-0069-04 |
| 修稿时间： | 2006年3月29日 |
Real-time Monitoring Load Effect of CFRP Strengthened RC Beam with FBG Sensor |
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| LU Shao-wei,XIE Huai-qin.Real-time Monitoring Load Effect of CFRP Strengthened RC Beam with FBG Sensor[J].Journal of Wuhan University of Technology,2006,28(8):69-72. |
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| Authors: | LU Shao-wei XIE Huai-qin |
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| Abstract: | Utilizing the CFRP embedded FBG sensor strengthened RC structures can realize the dual function of advanced rehabilitation and real-time health monitoring.The strains of CFRP were calculated through monitoring the wavelength of FBG sensors during load-carrying process of RC beams,then the theoretical calculated strains of tensile steel and compressive concrete and real-time calculated loads are obtained according to the calculated theory of real-time load effects.The experimental results of 4 pieces of beams show that during the load bearing process,the linear relationship of FBG sensor and electric strain gauge is uniform;the calculated results and the measuring results of strains in the tensile steel and the compressive concrete,the real-time load agree well. |
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| Keywords: | FBG sensor carbon fiber reinforced plastics(CFRP) reinforced concrete(RC) beams strengthened load effect |
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