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Ara es mostren els items 170-189 de 211

    • Safety factor calibration for a new model of shear strength of reinforced concrete building beams and slabs 

      Bairán García, Jesús Miguel; Casas Rius, Joan Ramon (2018-10)
      Article
      Accés obert
      When assessing existing structures, the availability of adequate safety factors, calibrated with the most accurate models, and for established target reliability indexes, is of critical importance in order to take the right ...

    • Safety factors for CFRP strengthening in bending of reinforced concrete bridges 

      Trentin, Caterina; Casas Rius, Joan Ramon (2015-09)
      Article
      Accés obert
      Concerning the strengthening in bending of reinforced concrete bridge decks, the use of fiber reinforced polymers (FRP) has increased due to its easy application and excellent mechanical and chemical properties. However, ...

    • Seismic behavior of RNC-isolated bridges: a comparative study under near-fault, long-period, and pulse-like ground motions 

      Ismail, Mohammed; Rodellar Benedé, José; Casas Rius, Joan Ramon (2016-01)
      Article
      Accés obert
      This paper introduces a recent seismic isolation system, named Roll-in-Cage (RNC) isolator, for efficient protection of bridges against destructive earthquakes. The RNC isolator is a rolling-based isolation system with ...

    • Seismic performance of deteriorated concrete bridges: bonding failure effects 

      Bartolozzi, Mara; Casas Rius, Joan Ramon; Domaneschi, Marco (Féderation Internationale du Béton (fib), 2020)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Nowadays, seismic study of corroded reinforced concrete elements is a matter of increasing concern, in particular for links such as bridges in infrastructural networks. In a starting step of an ongoing research, a bridge ...

    • Seismic performance of deteriorating concrete bridges 

      Domaneschi, Marco; De Gaetano, Antonino; Cimellaro, Gian Paolo; Casas Rius, Joan Ramon (CRC Press, 2021)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This study examines the effect of corrosion on reinforced concrete structural elements of a bridge overpass in seismic affected areas. Starting from a literature review to identify the existing deteriorating models, a case ...

    • Shear crack pattern identification in concrete elements via distributed optical fibre grid 

      Rodríguez Gutiérrez, Gerardo; Casas Rius, Joan Ramon; Villalba Herrero, Sergi (2019-12)
      Article
      Accés obert
      An experimental methodology to obtain the shear cracking pattern in concrete elements is presented. The method is based on the use of Distributed Optical Fiber Sensors (DOFS) connected to an Optical Backscattered Reflectometer ...

    • Shear crack width assessment in concrete structures by 2D distributed optical fiber 

      Rodríguez, Gerardo; Casas Rius, Joan Ramon; Villalba Herrero, Sergi (Elsevier, 2019-09)
      Article
      Accés obert
      This paper outlines the second part of an experimental study to show the capabilities of distributed optical fiber sensors (DOFS) in their application to the structural health monitoring (SHM) of the shear performance of ...

    • Shear performance mechanism description using digital image correlation 

      Strauss, Alfred; Castillo Ruano, Pablo; Bergmeister, Konrad; Casas Rius, Joan Ramon (2018-09)
      Article
      Accés obert
      In engineering, quality control in systems development ensures that products and services meet expectations. There is an increasing need to develop strategies to ensure asset quality and reduce the risk of unexpected costs. ...

    • SHM by DOFS in civil engineering: a review 

      Casas Rius, Joan Ramon; Rodríguez, Gerardo; Villalba Herrero, Sergi (2015-12)
      Article
      Accés obert
      This paper provides an overview of the use of different Distributed Optical Fiber Sensor systems (DOFSs) to perform Structural Health Monitoring (SHM) in the specific case of civil engineering structures. Nowadays, there ...

    • 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) ...

    • Simplified probabilistic model for maximum traffic load from weigh-in-motion data 

      Soriano Ibáñez, Miguel; Casas Rius, Joan Ramon; Ghosn, Michel (Routledge/Taylor and Francis Group, 2018)
      Capítol de llibre
      Accés restringit per política de l'editorial
      This paper reviews the simplified procedure proposed by Ghosn and Sivakumar to model the maximum expected traffic load effect on highway bridges and illustrates the methodology using a set of Weigh-In-Motion (WIM) data ...

    • Simplified probabilistic model for maximum traffic load from weigh-in-motion data 

      Soriano Chacón, Miriam; Casas Rius, Joan Ramon; Ghosn, Michel (CRC Press, 2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial

    • Simplified probabilistic model for maximum traffic load from weigh-in-motion data 

      Soriano Chacón, Miriam; Casas Rius, Joan Ramon; Ghosn, Michel (2017-03)
      Article
      Accés obert
      This paper reviews the simplified procedure proposed by Ghosn and Sivakumar to model the maximum expected traffic load effect on highway bridges and illustrates the methodology using a set of Weigh-In-Motion (WIM) data ...

    • Simplified probabilistic non-linear assessment of existing railway bridges 

      Wisniewski, Dawid; Casas Rius, Joan Ramon; Ghosn, Michel (2009-12)
      Article
      Accés obert
      An objective of the European Commission’s 6th Framework Research Project, Sustainable Bridges, is to advance our understanding of the behaviour of existing railway bridges and develop tools to assess their ability to safely ...

    • Some relevant experiences from proof load testing of concrete bridges 

      Olaszek, Piotr; Casas Rius, Joan Ramon; Swit, Grzegorz (2016)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The paper presents the results and experiences derived from a series of proof load test on concrete bridge structures. There are three main parts of the paper. The first part is a theoretical part related to the assessment ...

    • Standardization of quality control plans for highway bridges in Europe: COST Action TU 1406 

      Casas Rius, Joan Ramon; Matos, Jose C. (Institute of Physics (IOP), 2017)
      Text en actes de congrés
      Accés obert
      In Europe, as all over the world, the need to manage roadway bridges in an efficientway led to the development of different management systems. Hence, nowadays, many European countries have their own system. Although they ...

    • State-of-research on performance indicators for bridge quality control and management 

      Faleschini, Flora; Zanini, Mariano Angelo; Casas Rius, Joan Ramon (2019-03)
      Article
      Accés obert
      The present study provides a review of the most diffused technical and non-technical performance indicators adopted worldwide by infrastructure owners. This work, developed within the European COST Action TU 1406—“Quality ...

    • Statistical analysis of existing models for flexural strengthening of concrete bridge beams using FRP sheets 

      Ceci, Alfredo; Casas Rius, Joan Ramon; Ghosn, Michel (2012-02)
      Article
      Accés obert
      This paper performs a statistical analysis of previously proposed models for resisting the debonding of FRP sheets used in strengthening reinforced and prestressed concrete beams. End debonding and intermediate crack-induced ...

    • Strain-monitoring of a concrete tunnel lining with distributed optical fiber sensors 

      Gómez i Esteve, Judit; Casas Rius, Joan Ramon; Villalba Herrero, Sergi (International Society for Structural Health Monitoring of Intelligent Infrastructure (ISHMII), 2021)
      Text en actes de congrés
      Accés obert
      Despite their advantageous performance and reliability, distributed optical fiber sensors (DOFS) still constitute a recent technology and their reliability and accuracy when applied to real world structures is still under ...

    • Structural behavior and design criteria for bridge strengthening by tied arch. Comparison with network arch bridges 

      Valenzuela, Matías A.; Casas Rius, Joan Ramon (2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This study focuses on a new strengthening method of continuous bridges with several spans that present extensive damage in their foundation/piers due to scour and erosion. The method consists on the construction of a new ...