scholarly journals Comparison of Visual Inspection and Structural-Health Monitoring As Bridge Condition Assessment Methods

2016 ◽  
Vol 30 (3) ◽  
pp. 04015049 ◽  
Author(s):  
Duzgun Agdas ◽  
Jennifer A. Rice ◽  
Justin R. Martinez ◽  
Ivan R. Lasa
Keyword(s):  
Structural Health Monitoring ◽  
Health Monitoring ◽  
Visual Inspection ◽  
Condition Assessment ◽  
Assessment Methods ◽  
Structural Health ◽  
Bridge Condition Assessment

scholarly journals Condition assessment of reinforced concrete beams – Comparing digital image analysis with optic fibre Bragg gratings

2018 ◽  
Vol 199 ◽  
pp. 06011
Author(s):  
Elsabe Kearsley ◽  
SW Jacobsz
Keyword(s):  
Reinforced Concrete ◽  
Structural Health Monitoring ◽  
Health Monitoring ◽  
Construction Material ◽  
Bragg Gratings ◽  
Condition Assessment ◽  
Reinforced Concrete Beams ◽  
Large Strains ◽  
Structural Health ◽  
Concrete Elements

Reinforced concrete is the most widely used construction material and thus effective condition assessment of reinforced concrete elements forms a significant part of structural health monitoring. An effective structural health monitoring system should be able to give the owner prior warning that structural elements are reaching conditions approaching either serviceability or ultimate limit states. The aim of this investigation is to compare strain data recorded during load testing of a reinforced concrete beam using Fibre optic Bragg Gratings (FBG) and a photographic technique to determine circumstances most suitable for the use of each of the techniques. The test results indicate that FBG sensors can be used to detect small strains as well as large strains in uncracked concrete elements, while optical images can be used to accurately map crack development over the surface area of the structure.

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