A Long-Term Monitoring Method of Corrosion Damage of Prestressed Anchor Cable-Reference-Cited by-同舟云学术

A Long-Term Monitoring Method of Corrosion Damage of Prestressed Anchor Cable

Published:2023-03-31 Issue:4 Volume:14 Page:799
ISSN:2072-666X
Container-title:Micromachines
language:en
Short-container-title:Micromachines

Author:

Li Jianzhi¹^ORCID,Wang Chen²,Zhao Yiyao³

Affiliation:

1. Structural Health Monitoring and Control Institute, Shijiazhuang Tiedao University, Shijiazhuang 050043, China

2. School of Mechanical Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, China

3. School of Materials Science and Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, China

Abstract

Based on high-stress characteristics of prestressed anchor cables, this paper develops an axial-distributed testing method to test corrosion damage of prestressed anchor cables. The positioning accuracy and corrosion range of an axial-distributed optical fiber sensor is studied, and its mathematical model between corrosion mass loss and axial fiber strain is established. The experimental results show that the fiber strain from an axial-distributed sensor enables one to reflect the corrosion rate along a prestressed anchor. Moreover, it has a greater sensitivity when an anchored cable has a higher stress. The mathematical model between corrosion mass loss and axial fiber strain is determined to be ε=4723.64ρ+2592.95. The corrosion location along the anchor cable is characterized by axial fiber strain. Therefore, this work provides an insight for cable corrosion.

Funder

National Natural Science Foundation of China

the scientific and technological projects of Hebei Province

Publisher

MDPI AG

Subject

Electrical and Electronic Engineering,Mechanical Engineering,Control and Systems Engineering

Link

https://www.mdpi.com/2072-666X/14/4/799/pdf

Reference25 articles.

1. The in-situ monitoring principles and the residual life prediction of the durability of concrete structure in marine environment;Raupach;Eng. Mech.,2011

2. Strategies to ensur e durability of concr ete structur e for Hangzhou Bay Bridge;Baosheng;China Civ. Eng. J.,2006

3. In-situ Monitoring and Early Warning System for Durability of Concrete Structure of Hangzhou Bay Sea-crossing Bridge;Gan;China J. Highw. Transp.,2010

4. Long-Period Fiber Grating Transverse Load Effect-Based Sensors for Rebar Corrosion in Concrete;Hongyue;Acta Opt. Sin.,2013

5. Optical-based sensors for monitoring corrosion of reinforcement rebar via an etched cladding Bragg grating;Hassan;Sensors,2012