预应力SCFRP板智能锚固装置在混凝土梁加固中的应用试验研究  

Experimental Research on the application of prestressed SCFRP plates intelligent anchoring device in the reinforcement of concrete beams

作　　者：邓礼娇 朱万旭 陈宜虎[1] 蔡军 邱秀丽 苏莹 张金丹[1] DENG Lijiao;ZHU Wanxu;CHEN Yihu;CAI Jun;QIU Xiuli;SU Ying;ZHANG Jindan(College of Civil Engineering and Architecture Hezhou University,Hezhou 542899,China;Guangxi Key Laboratory of Geomechanics and Geotechnical Engineering,Guilin 541004,China;College of Civil Engineering and Architecture,Guilin University of Technology,Guilin 541004,China)

机构地区：[1]贺州学院建筑与电气工程学院,广西贺州542899 [2]广西岩土力学与工程重点实验室,广西桂林541004 [3]桂林理工大学土木与建筑工程学院,广西桂林541004

出　　处：《混凝土》2024年第7期228-232,共5页Concrete

基　　金：国家重点研发计划项目(2017YFC0703007);2020年度广西高校中青年教师科研基础能力提升项目(2020KY18018);广西科技创新驱动专项(2018AA11010)。

摘　　要：提出一种将光纤光栅耦合进张拉螺杆内部,制成智能型锚固装置的方法,并使用预应力加筋碳纤维板智能锚固装置加固混凝土梁。耦合进张拉螺杆内的光纤光栅其感知性能与裸光纤基本一致,线性重复率可达95%,具有良好的重复性和稳定性,满足土木工程运用的需求。通过预应力加筋碳纤维板智能锚固装置加固混凝土梁可知,预应力加筋碳纤维板智能锚固装置加固混凝土梁时,其应变与钢筋应变是协调且同步的,且张拉螺杆应变与碳纤维板应变之间误差在0.3%,为同类型构件健康监测的研发提供设计方法和理论基础。A method of coupling the fiber grating into the tension screw to make an intelligent anchoring device is proposed,and the prestressed reinforced carbon fiber board intelligent anchoring device is used to reinforce the concrete beam.The sensing performance of the fiber grating coupled into the tension screw is basically the same as that of the bare fiber.Linear repetition rate up to 95%,it has good repeatability and stability to meet the needs of civil engineering applications.It can be seen that the concrete beam is strengthened by the prestressed carbon fiber board intligent anchoring device,when the prestressed reinforced carbon fiber board intelligent anchoring device reinforces the concrete beam,its strain and the steel bar strain are coordinated and synchronize,and the error between the tension screw strain and the carbon fiber plate strain is 0.3%,which provides a design method and theoretical basis for the research and development of the health monitoring of the same type of components.

关 键 词：光纤光栅 智能型锚固装置 重复率 混凝土梁 健康监测 

分 类 号：TU528.01[建筑科学—建筑技术科学]