Methodology based on FBG sensors for monitoring of FRP-strengthened beams

Sevillano Bravo, Enrique; Perera Velamazan, Ricardo; Arteaga Iriarte, Ángel y Diego Villalón, Ana de (2013). Methodology based on FBG sensors for monitoring of FRP-strengthened beams. En: "6th ECCOMAS Conference on Smart Structures and Materials SMART2013", 24-26 June 2013, Torino (Italy). pp. 1-9.

Descripción

Título: Methodology based on FBG sensors for monitoring of FRP-strengthened beams
Autor/es:
  • Sevillano Bravo, Enrique
  • Perera Velamazan, Ricardo
  • Arteaga Iriarte, Ángel
  • Diego Villalón, Ana de
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: 6th ECCOMAS Conference on Smart Structures and Materials SMART2013
Fechas del Evento: 24-26 June 2013
Lugar del Evento: Torino (Italy)
Título del Libro: Proceedings of 6th ECCOMAS Conference on Smart Structures and Materials - SMART2013
Fecha: 2013
Materias:
Palabras Clave Informales: FRP, debonding identification, simplified model, fibre optic sensors
Escuela: E.T.S.I. Industriales (UPM)
Departamento: Mecánica Estructural y Construcciones Industriales [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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URL Oficial: http://www.eccomas.org/vpage/1/14/2013

Resumen

Advanced composite materials are increasingly used in the strengthening of reinforced concrete (RC) structures. The use of externally bonded strips made of fibre-reinforced plastics (FRP) as strengthening method has gained widespread acceptance in recent years since it has many advantages over the traditional techniques. However, unfortunately, this strengthening method is often associated with a brittle and sudden failure caused by some form of FRP bond failure, originated at the termination of the FRP material or at intermediate areas in the vicinity of flexural cracks in the RC beam. Up to date, little effort in the early prediction of the debonding in its initial instants even though this effect is not noticeable by simple visual observation. An early detection of this phenomenon might help in taking actions to prevent future catastrophes. Fibre-optic Bragg grating (FBG) sensors are able to measure strains locally with high resolution and accuracy. Furthermore, as their physical size is extremely small compared with other strain measuring components, it enables to be embedded at the concrete-FRP interface for determining the strain distribution without influencing the mechanical properties of the host materials. This paper shows the development of a debonding identification methodology based on strains experimentally measured. For, it a simplified model is implemented to simulate the behaviour of FRP-strengthened reinforced concrete beams. This model is taken as a basis to. develop an model updating procedure able to detect minor debonding at the concrete-FRP interface from experimental strains obtained by using FBG sensors embedded at the interface

Proyectos asociados

TipoCódigoAcrónimoResponsableTítulo
Gobierno de EspañaBIA2010-20234-C03-01)Sin especificarSin especificarSin especificar

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ID de Registro: 36711
Identificador DC: http://oa.upm.es/36711/
Identificador OAI: oai:oa.upm.es:36711
Depositado por: Memoria Investigacion
Depositado el: 14 Abr 2016 10:41
Ultima Modificación: 19 May 2016 09:37
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