[1]张　意　杨　阳　车　野　莫品疆.不锈钢管智能筋在钢筋混凝土结构应变监测中的应用[J].大众科技,2023,25(4):24-28.
　Application of Stainless Steel Tube Intelligent Reinforcement in Strain Monitoring of Reinforced Concrete Structures[J].Popular Science & Technology,2023,25(4):24-28.
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不锈钢管智能筋在钢筋混凝土结构应变监测中的应用()
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《大众科技》[ISSN:1008-1151/CN:45-1235/N]

卷:
25
期数:
2023年4
页码:
24-28
栏目:
建设与工程
出版日期:
2023-04-20

文章信息/Info

Title:
Application of Stainless Steel Tube Intelligent Reinforcement in Strain Monitoring of Reinforced Concrete Structures
作者:
张　意　杨　阳　车　野　莫品疆
（广西交通职业技术学院，广西 南宁 53000）
关键词:
布里渊光时域分析技术; FRP智能筋; 不锈钢管智能筋; 光纤智能筋; 混凝土应变监测
Keywords:
Brillouin optical time domain analysis technique;  FRP intelligent reinforcement;  stainless steel tube intelligent reinforcement;  optical fiber intelligent reinforcement;  concrete strain monitoring
文献标志码:
A
摘要:
为解决光纤传感器易损、测量结果易受外界因素干扰以及布设存活率较低等问题，文章依据布里渊散射原理，基于BOTDA传感技术，通过不锈钢管封装紧皮光纤，自行研制具有监测距离长、精度高、全分布式、耐久性强等优点的不锈钢管智能筋。不锈钢管智能筋具有制备快捷的优点。通过标定不锈钢管智能筋和FRP智能筋的温度和应变灵敏系数进行分析，发现两种智能筋具有良好的温度与应变感知性能；解析试验梁应变监测数据，进行对比分析发现自制不锈钢管智能筋与FRP智能筋的应变监测精度相同，且不锈钢管智能筋的应变监测稳定性优于FRP智能筋。试验结果表明自行研制的不锈钢管智能筋能够解决光纤在粗狂式监测环境中易损的问题，同时具有监测精度高、稳定性好等优点，可对钢筋混凝土结构进行全尺度大范围的监测。
Abstract:
In order to solve the problems such as the vulnerability of optical fiber sensors, the susceptibility of measurement results to external factors, and the low deployment survival rate, based on the Brillouin scattering principle and the BOTDA sensing technology, a stainless steel tube intelligent reinforcement with the advantages of long monitoring distance, high accuracy, full distribution, and strong durability was developed. By calibrating the temperature and strain sensitivity coefficients of stainless steel tube intelligent reinforcement and FRP intelligent reinforcement, it was found that the two types of intelligent reinforcements have good temperature and strain sensing performance; after analyzing the strain monitoring data of the test beam, it was found that the strain monitoring accuracy of the self-made stainless steel tube intelligent reinforcement was the same as that of the FRP intelligent reinforcement, and the strain monitoring stability of the stainless steel tube intelligent reinforcement was better than that of the FRP intelligent reinforcement. The test results showed that the self-developed stainless steel tube intelligent reinforcement can solve the problem of optical fiber vulnerability in rough monitoring environments, and has the advantages of high monitoring accuracy and good stability, which can be used for full-scale and large-scale monitoring of reinforced concrete structures.

参考文献/References:

[1]　钱振东，黄卫，关永胜，等. BOTDA在沥青混凝土铺装层裂缝监测中的应用[J]. 东南大学学报(自然科学版)，2008(5): 799-803.[2] 侯俊芳，裴丽，李卓轩，等. 光纤传感技术的研究进展及应用[J]. 光电技术应用，2012，27(1): 49-53.[3] 王燕花. 新型光纤传感系统的研究与实现[D]. 北京: 北京交通大学，2009.[4] KAPRON F P, MAURER R D, TETER M P. Theory of backscattering effects in waveguides[J]. Applied Optics, 1972, 11(6): 1352-1356.[5] LEES G P, LEACHA P, HARTOG A H, et al. 1.64m pulsed source for a distributed optical fibre Raman temperature sensor[J]. Electronics Letters, 1996, 32(19): 1809.[6] IPPEN E P, STOLEN R H. Stimulated Brillouin scattering in optical fibers[J]. Applied Physics Letters, 1972, 21: 539-541.[7] 王如刚. 光纤中布里渊散射效应及其应用研究[D]. 南京: 南京大学，2012.[8] HORIGUCHI T, KURASHIMA T. TATEDA M. Tensile strain dependence of Brillouin frequency shift in silica optical fibers[J]. IEEE Photonics Technology Letters, 1989, 1(5): 107-108.[9] KWON I B, KIM C Y, CHOI M Y. Distributed strain and temperature measurement of a beam using fiber optic BOTDA sensor[J]. Proc SPIE, 2003, 5057: 486-496.[10] 金文成，李阳，赵文秀，等. 基于分布式光纤的混凝土梁应变检测试验[J]. 华中科技大学学报(自然科学版)，2015，43(10): 96-100.

备注/Memo

备注/Memo:
【收稿日期】2022-09-29【基金项目】光纤智能筋在钢筋混凝土结构应变监测中的应用（JZY2020KAZ02）。【作者简介】张意（1994－），男，河北石家庄人，供职于广西交通职业技术学院，硕士，研究方向为大跨度拱桥大跨度拱桥与悬索桥设计与施工技术、结构健康诊断与维修加固。
更新日期/Last Update: 2023-06-15