Experimental investigation on structural damage detection scheme based on distributed fiber optic sensors

被引：0

作者：

Li, S. Z. ^{[1
]}

Wu, Z. S. ^{[1
]}

机构：

[1] Ibaraki Univ, Dept Urban & Civil Engn, Hitachi, Ibaraki 3168511, Japan

来源：

ISISS 2005: Innovation & Sustainability of Structures, Vol 1-3 | 2005年

关键词：

damage detection; distributed fiber optic sensors; beams; experiment;

D O I：

暂无

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

An advanced structural damage detection and assessment scheme based on distributed fiber optic sensing techniques have been presented in our recent research, which are expected to bring up a new way for both static and vibration-based structural health monitoring. Based on this scheme, the experimental investigation for beam structures pre and after different levels of damage with distributed long-gage FBG sensors is carried out in this paper. Both static and dynamic macro-strain distributions throughout the beams are obtained under various controlled loading tests. By using static measurements, stiffness estimations are implemented. Moreover, two-level vibration based method is also utilized for damage detection using modal parameters from dynamic macro-strain responses. The comparison of identified damages with the exact set ones has verified the applicability and effectiveness of distributed long-gage strain sensors for damage detection and structural identification.

引用

页码：1516 / 1528

页数：13