[1]何勇,邢锋,毛江鸿,等.基于BOTDA的钢筋应力实时监测方法[J].深圳大学学报理工版,2010,27(3):291-295.
 HE Yong,XING Feng,MAO Jiang-hong,et al.Study on real-time reinforcement stress measurement based on Brillouin optical time domain analysis[J].Journal of Shenzhen University Science and Engineering,2010,27(3):291-295.
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基于BOTDA的钢筋应力实时监测方法()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第27卷
期数:
2010年3期
页码:
291-295
栏目:
土木建筑工程
出版日期:
2010-07-30

文章信息/Info

Title:
Study on real-time reinforcement stress measurement based on Brillouin optical time domain analysis
文章编号:
1000-2618(2010)03-0291-05
作者:
何勇1邢锋2毛江鸿1金伟良1
1) 浙江大学结构工程研究所,杭州 310058
2) 深圳大学土木工程学院,深圳 518060
Author(s):
HE Yong1XING Feng2MAO Jiang-hong1and JIN Wei-liang1
1)Institute of Structural Engineering, Zhejiang University, Hangzhou 310058, P.R.China
2)College of Civil Engineering, Shenzhen University, Shenzhen 518060, P.R.China
关键词:
材料力学钢筋应力监测钢筋混凝土耐久性分布式光纤传感器布里渊光时域分析技术钢筋锈蚀
Keywords:
mechanics of materials reinforcement stress monitoringdurability of reinforced concrete structuredistributed optical fiber sensorBrillouin optical time domain analysiscorrosion of reinforced bar
分类号:
TU 317
文献标志码:
A
摘要:
提出一种将分布式应变传感光纤技术用于钢筋混凝土中钢筋应力监测的方法,能在较短施工期内将分布式光纤传感器准确埋入混凝土内部,对钢筋的应力水平进行长期实时监测,确定混凝土结构的工作水平,更好地预测结构的耐久性.分析传感光纤应变与钢筋应变的转化关系,为提高分布式传感器的空间分辨率,提出盘绕方式的光纤黏结方法,对盘绕弯曲曲率的影响进行分析.通过简支梁的全过程受力试验,比较了传统应变片和分布式传感光纤的测量结果,并对光纤不同的黏结方式进行对比,验证了该方法的可行性和有效性.
Abstract:
A new method to monitor reinforcement stress is proposed.The distributed optical fiber can be rapidly laid into the concrete.The new method is feasible to evaluate structure performance because it can carry out stable,long-term,real-time reinforcement stress measurement.The measurement of the stress of reinforced bar can give more correct assessment of the durability of concrete structures.In order to increase the spatial resolution,the coil method of fiber felt is developed.The influence of radius of curvature of fiber is studied.The measurements of strain-gage transducer and the optical fiber are compared through tests of a beam.The results show the proposed method is feasible and valid.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2010-01-13;修回日期:2010-06-10
基金项目:国家高新技术研究发展计划资助项目(2004AA602210, 2006AA09A109); 深圳市土木工程重点实验室资助项目(SZDCCE09-14)
作者简介:何勇(1979-),男(汉族),江苏省启东市人,浙江大学讲师、博士. E-mail:heyong_ise@zju.edu.cn
通讯作者:金伟良(1961-),男(汉族),浙江大学教授、博士生导师.E-mail:jinwl@zju.edu.cn
更新日期/Last Update: 2010-07-30