FBG传感器关于裂缝及损伤的监测应用研究

发布时间：2018-01-30 20:49

本文关键词： 光纤光学结构健康监测准分布裂缝损伤　出处：《激光技术》2017年01期 　论文类型：期刊论文

【摘要】：为了满足结构健康监测的需求,采用试验方法研究了准分布式光纤布喇格光栅(FBG)传感器在裂缝监测和损伤定位中的应用。以钢筋混凝土简支梁和工字型钢梁为试验对象,对梁关键部位划分单元进行多点监测,取得了其应变变化的数据,并进行了分析以实现裂缝监测和损伤定位。结果表明,准分布式FBG传感器能够较为准确地对裂缝的发生及所测区域的损伤情况实现定位。
[Abstract]:In order to meet the needs of structural health monitoring. The application of quasi-distributed fiber Bragg grating (FBG) sensor in crack monitoring and damage location is studied by means of experimental method. The reinforced concrete simply supported beam and I-shaped steel beam are taken as experimental objects. The data of strain variation are obtained by multi-point monitoring of the key parts of beam, and the crack monitoring and damage location are analyzed. The results show that. The quasi-distributed FBG sensor can accurately locate the crack and the damage in the measured area.
【作者单位】：苏州科技学院土木工程学院;哈尔滨工业大学土木工程学院;无锡锡山三建实业有限公司;苏州地福房地产开发有限公司;
【分类号】：TU317;TP212.9
【正文快照】： 引言数十年来,建筑业伴随着中国国民经济得到了飞速发展,大量的重大工程结构纷纷涌入公众视野[1]。时至今日,这些重大工程结构已经各自进入了其服役的中期或中后期,及时获取这些结构服役期间的状态信息以确保它们的安全运营显得尤为重要,因此,结构健康监测(structural health

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