Development of a structural health monitoring methodology in reinforced concrete structures using FBGs and pattern recognition techniques

Alejandra Amaya, Joham Alvarez-Montoya, Julián Sierra-Pérez

Resultado de la investigación: Capítulo del libro/informe/acta de congresoContribución a la conferenciarevisión exhaustiva

Resumen

Structural health monitoring (SHM) is a branch of structural engineering which seeks for the development of monitoring systems that provide relevant information of any alteration that may occur in an engineering structure. This work presents the implementation of an SHM methodology in a prototype structure made of reinforced concrete by using fiber Bragg gratings (FBGs), a type of fiber optic sensor capable of measuring strain and temperature changes due to external stimuli. The SHM system includes an interrogation device and signal processing algorithms which are intended to study the physical variations on the FBGs measurements in order to detect anomalies in the structure promoted by a damage occurrence. The structure prototype is a porticoed structure which contains 48 embedded sensors: 32 of them are destinated for the strain measurement and are located in both columns and beams of the structure, 16 are temperature sensors which have been embedded for thermal compensation. Strain datasets for both pristine and damaged conditions were obtained for the structure while it was excited with a mechanical shaker which induced dynamic loading conditions resembling earthquakes. By using classification algorithms based on pattern recognition, it is intended to process the datasets with the aim of reaching the first level of SHM in the structure (damage detection).

Idioma originalInglés
Título de la publicación alojadaASME 2019 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2019
EditorialAmerican Society of Mechanical Engineers (ASME)
ISBN (versión digital)9780791859131
DOI
EstadoPublicada - 2019
Publicado de forma externa
EventoASME 2019 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2019 - Louisville, Estados Unidos
Duración: 9 sept. 201911 sept. 2019

Serie de la publicación

NombreASME 2019 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2019

Conferencia

ConferenciaASME 2019 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2019
País/TerritorioEstados Unidos
CiudadLouisville
Período9/09/1911/09/19

Nota bibliográfica

Publisher Copyright:
© 2019 ASME

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