[1]吴雨佼,朱万旭,黄宗宁,等.内嵌光纤光栅碳纤维板对RC受损梁监测[J].华侨大学学报(自然科学版),2022,43(2):192-197.[doi:10.11830/ISSN.1000-5013.202012029]
　WU Yujiao,ZHU Wanxu,HUANG Zongning,et al.Monitoring of RC Damaged Beams With Carbon Fiber Board Embedded Fiber Bragg Grating[J].Journal of Huaqiao University(Natural Science),2022,43(2):192-197.[doi:10.11830/ISSN.1000-5013.202012029]
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内嵌光纤光栅碳纤维板对RC受损梁监测()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第43卷
期数:
2022年第2期
页码:
192-197
栏目:
出版日期:
2022-03-08

文章信息/Info

Title:
Monitoring of RC Damaged Beams With Carbon Fiber Board Embedded Fiber Bragg Grating
文章编号:
1000-5013(2022)02-0192-06
作者:
吴雨佼1; 2;  朱万旭1; 2 ;  黄宗宁1; 2;  李明霞1; 2
1. 桂林理工大学 土木与建筑工程学院, 广西 桂林 541004;2. 桂林理工大学 广西岩土力学与工程重点实验室, 广西 桂林 541004
Author(s):
WU Yujiao1; 2;  ZHU Wanxu1; 2;  HUANG Zongning1; 2;  LI Mingxia1; 2
1. School of Civil and Architectural Engineering, Guilin University of Technology, Guilin 541004, China; 2. Guangxi Key Laboratory of Rock and Soil Mechanics and Engineering, Guilin University of Technology, Guilin 541004, China
关键词:
预应力碳纤维板;  钢筋混凝土梁;  光纤光栅;  共振频率
Keywords:
prestressed carbon fiber board;  reinforced concrete beam;  fiber bragg grating;  resonance frequency
分类号:
TU599
DOI:
10.11830/ISSN.1000-5013.202012029
文献标志码:
A
摘要:
为了评估预应力碳纤维板加固钢筋混凝土(RC)梁的健康状态,以光纤光栅(FBG)传感器为依托,对加固前、后RC梁的共振频率进行监测;然后,对RC梁进行抗弯和人工激励实验,依据共振频率变化曲线判定健康状态.结果表明:受损RC梁经过预应力碳纤维板加固后,RC梁的极限承载能力与刚度均得到提升,共振频率基本提升了28%;对于不同的激励位置,RC梁共振频率曲线基本一致.
Abstract:
In order to evaluate the health status of reinforced concrete(RC)beams reinforced with prestressed carbon fiber board using fiber bragg grating(FBG)sensors as a basis to monitor the resonance frequency of the RC beams before and after reinforcement. Bending and artificial excitation experiments of RC beam were carried out, Judging health status based on the resonance frequency change curve. The results show that after the damaged RC beams are strengthened by the prestressed carbon fiber board, the ultimate bearing capacity and stiffness of RC beams are improved, and the resonance frequency is basically increased by 28%. For the different excitation positions, the resonance frequency curves are basically the same.

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备注/Memo

备注/Memo:
收稿日期: 2020-12-15
通信作者: 朱万旭(1972-),男,教授,博士,主要从事工程结构智慧化和新特功能材料的研究.E-mail:zhuwanxu@vip.163.com.
基金项目: 国家自然科学基金资助项目(51768014); 国家重点研发计划项目(2017YFC0703007); 广西科技计划项目(桂科AD16380017)
更新日期/Last Update: 2022-03-20