Exploració per autor "Barrias, Antonio Jose de Sousa"Més informació

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    • A review of distributed optical fiber sensors for civil engineering applications 

      Barrias, Antonio Jose de Sousa; Casas Rius, Joan Ramon; Villalba Herrero, Sergi (2016-05)
      Article
      Accés obert
      The application of structural health monitoring (SHM) systems to civil engineering structures has been a developing studied and practiced topic, that has allowed for a better understanding of structures’ conditions and ...

    • Application of distributed optical fiber sensors for the health monitoring of two real structures in Barcelona 

      Barrias, Antonio Jose de Sousa; Rodríguez, Gerardo; Casas Rius, Joan Ramon; Villalba Herrero, Sergi (2018-07)
      Article
      Accés obert
      The versatility and ease of installation of Distributed Optical Fibre Sensors (DOFS) compared with traditional monitoring systems are important characteristics to consider when facing the Structural Health Monitoring (SHM) ...

    • Application study of embedded Rayleigh based Distributed Optical Fiber Sensors in concrete beams 

      Barrias, Antonio Jose de Sousa; Casas Rius, Joan Ramon; Villalba Herrero, Sergi (Elsevier, 2017)
      Text en actes de congrés
      Accés obert
      In this work, an experiment on two small concrete beams is described where Rayleigh based distributed optical fiber sensors (DOFS) are implemented together with traditional electrical strain gauges for the monitoring of ...

    • Distributed Optical Fiber for laboratory and field testing in concrete structures 

      Rodríguez Gutiérrez, Gerardo; Casas Rius, Joan Ramon; Barrias, Antonio Jose de Sousa; Villalba Herrero, Sergi (World Conference on Earthquake Engineering, 2020)
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      This paper outlines the principal results of laboratory and field testing in concrete structures to show the capabilities of distributed optical fiber sensors (DOFS) in their application to monitoring concrete structures. ...

    • Distributed optical fibre sensors in concrete structures: performance of bonding adhesives and influence of spatial resolution 

      Barrias, Antonio Jose de Sousa; Casas Rius, Joan Ramon; Villalba Herrero, Sergi (Wiley, 2019-03)
      Article
      Accés obert
      In this paper, the authors conducted an experiment where a reinforced concrete beam was instrumented with a 5-m long polyimide single distributed optical fibre sensors (DOFS) performing four equal segments externally bonded ...

    • Embedded distributed optical fiber sensors in reinforced concrete structures: a case study 

      Barrias, Antonio Jose de Sousa; Casas Rius, Joan Ramon; Villalba Herrero, Sergi (Multidisciplinary Digital Publishing Institute (MDPI), 2018-04)
      Article
      Accés obert
      When using distributed optical fiber sensors (DOFS) on reinforced concrete structures, a compromise must be achieved between the protection requirements and robustness of the sensor deployment and the accuracy of the ...

    • Fatigue testing of reinforced concrete beam instrumented with distributed optical fiber sensors (DOFS) 

      Barrias, Antonio Jose de Sousa; Casas Rius, Joan Ramon; Villalba Herrero, Sergi (Civil Engineering Research Association of Ireland (CERAI), 2018)
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      Accés restringit per política de l'editorial
      The use of fiber optic sensors on civil engineering structural health monitoring (SHM) applications have become quite popular for the past two decades. Within this type of sensors however, the study and use of Optical ...

    • Fiber optics for load testing 

      Casas Rius, Joan Ramon; Barrias, Antonio Jose de Sousa; Rodríguez, Gerardo; Villalba Herrero, Sergi (CRC Press, 2019)
      Capítol de llibre
      Accés restringit per política de l'editorial
      This chapter presents the application of fiber optic sensor technology in the monitoring of a load test. First, the description of the fiber optic technology is described with main emphasis in the case of distributed optical ...

    • Health monitoring of real structures by distributed optical fiber 

      Barrias, Antonio Jose de Sousa; Casas Rius, Joan Ramon; Villalba Herrero, Sergi; Rodríguez, Gerardo (2016)
      Text en actes de congrés
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      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 ...

    • Long-term reliability assessment of OBR based DOFS on reinforced concrete elements 

      Barrias, Antonio Jose de Sousa; Casas Rius, Joan Ramon; Villalba Herrero, Sergi (International Association for Structural Control and Monitoring (IASCM), 2018)
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      The authors conducted a laboratory experiment where two reinforced concrete beams were instrumented with a Distributed Optical Fiber Sensors that were adhered to allow the measuring of strain on four different longitudinal ...

    • Monitoring of shear cracking in partially prestressed concrete beams by distributed optical fiber sensors 

      Rodríguez, Gerardo; Casas Rius, Joan Ramon; Villalba Herrero, Sergi; Barrias, Antonio Jose de Sousa (CRC Press Taylor, 2016)
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      In the present paper, a novel technique is used to monitor shear crack patterns in Partially Prestressed Concrete (PPC) beams. The proposed technique is based on experimental data obtained in two PPC beams tested in ...

    • Performance assessment of embedded distributed optical fiber sensors in reinforced concrete structures 

      Barrias, Antonio Jose de Sousa; Casas Rius, Joan Ramon; Villalba Herrero, Sergi (International Association for Bridge and Structural Engineers (IABSE), 2017)
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      In this paper, an experiment where distributed optical fiber sensors (DOFS) were implemented in two small concrete beams subjected to a three-point load test is outlined. Here, an optical backscatter reflectometry based ...

    • Performance of Distributed Optical Fiber Sensors bonded to reinforcement bars in bending 

      Bado, Mattia Francesco; Casas Rius, Joan Ramon; Barrias, Antonio Jose de Sousa (NDT.net, 2018)
      Text en actes de congrés
      Accés obert
      Distributed Optical Fiber Sensors (DOFS) are optimal tools for mapping temperature, strain and vibration inside a structural element in two or even three dimensions. Thanks to their multiple sensing points, wide location ...

    • Performance of Rayleigh-based Distributed Optical Fiber Sensors bonded to reinforcing bars in bending 

      Bado, Mattia Francesco; Casas Rius, Joan Ramon; Barrias, Antonio Jose de Sousa (Multidisciplinary Digital Publishing Institute (MDPI), 2018-09)
      Article
      Accés obert
      Distributed Optical Fiber Sensors (DOFSs), thanks to their multiple sensing points, are ideal tools for the detection of deformations and cracking in reinforced concrete (RC) structures, crucial as a means to ensure the ...

    • Review of civil engineering applications with distributed optical fiber sensors 

      Barrias, Antonio Jose de Sousa; Casas Rius, Joan Ramon; Villalba Herrero, Sergi (2016)
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      Accés restringit per política de l'editorial
      It’s widely recognized that during its lifetime, civil engineering structures are subjected to adverse changes that affect their condition and structural safety. In this way, the application of Structural Health Monitoring ...

    • SHM of reinforced concrete elements by Rayleigh backscattering DOFS 

      Barrias, Antonio Jose de Sousa; Casas Rius, Joan Ramon; Villalba Herrero, Sergi (2019-03)
      Article
      Accés obert
      This document showcases the latest research conducted within UPC–BarcelonaTech on the performance of distributed optical fiber sensors (DOFS), more specifically the case of the optical backscattered reflectometry (OBR) ...

    • Structural health monitoring developments in TRUSS Marie Sklodowska-Curie innovative training network 

      Moughty, John James; Barrias, Antonio Jose de Sousa; Casas Rius, Joan Ramon (2017)
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      This paper reports on recent contributions by the Marie Sklodowska-Curie Innovative Training Network titled TRUSS (Training in Reducing Uncertainty of Structural Safety) to the field of structural safety in rail and road ...

    • TRUSS, a European innovative training network dealing with the challenges of an aging infrastructure network 

      González, Arturo; Barrias, Antonio Jose de Sousa; Teixeira, Rui; Casas Rius, Joan Ramon (NDT.net, 2018)
      Text en actes de congrés
      Accés obert
      Inspections and maintenance of infrastructure are expensive. In some cases, overdue or insufficient maintenance/monitoring can lead to an unacceptable risk of collapse and to a tragic failure as the Morandi bridge in Genoa, ...

    • UPC—BarcelonaTech experience on the use of Rayleigh based distributed optical fiber sensors for SHM of concrete structures 

      Barrias, Antonio Jose de Sousa; Casas Rius, Joan Ramon; Rodríguez, Gerardo; Villalba Herrero, Sergi (CRC Press, 2017)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In the past decade, several works and studies have been performed with the goal of improving the knowledge and developing new techniques associated with the application of Distributed Optical Fiber Sensors (DOFS) in order ...