Title:
|
Health monitoring of real structures by distributed optical fiber
|
Author:
|
Barrias, Antonio Jose de Sousa; Casas Rius, Joan Ramon; Villalba Herrero, Sergi; Rodríguez, Gerardo
|
Other authors:
|
Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental; Universitat Politècnica de Catalunya. Departament d'Enginyeria de Projectes i de la Construcció; Universitat Politècnica de Catalunya. EC - Enginyeria de la Construcció; Universitat Politècnica de Catalunya. GRIC - Grup de Recerca i Innovació de la Construcció |
Abstract:
|
Two different existing structures monitored with distributed optical fiber sensors, are described in this paper. The principal Structural Health Monitoring (SHM) results of a valuable hospital rehabilitation and the enlargement of a prestressed concrete bridge are presented. The results are obtained using a novel Distributed Optical Fiber Sensor system (DOFSs) based on an Optical Backscattered Reflectometry (OBR) technique. The versatility and easy installation of DOFSs compared with traditional monitoring systems is an important characteristic to consider its application in monitoring real world structures. The DOFS used in this study provide continuous (in space) strain data along the optical fiber with high spatial resolution in order of centimeters. Also and because the structural surfaces generally are roughness, the procedure to attach the optical fiber to two monitored structures are described. This is an important aspect because the influence in strain transfer between the DOFS and the surface is one of the principal parameters that should be considered in the application of the OBR technique. |
Subject(s):
|
-Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures -Structural health monitoring -Enginyeria d'estructures -- Manteniment i reparació -Detectors de fibra òptica |
Rights:
|
|
Document type:
|
Article - Published version Conference Object |
Share:
|
|