Beam Spectral Element with FRP Debonding

Sevillano Bravo, Enrique; Perera Velamazan, Ricardo y Sun, Rui (2013). Beam Spectral Element with FRP Debonding. En: "11th International Symposium on Fiber Reinforced Polymers for reinforced concrete structures", 26-28 junio 2013, Guimarães, Portugal. pp. 1-10.

Descripción

Título: Beam Spectral Element with FRP Debonding
Autor/es:
  • Sevillano Bravo, Enrique
  • Perera Velamazan, Ricardo
  • Sun, Rui
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: 11th International Symposium on Fiber Reinforced Polymers for reinforced concrete structures
Fechas del Evento: 26-28 junio 2013
Lugar del Evento: Guimarães, Portugal
Título del Libro: FRPRCS-11: 11th International Symposium on Fiber-Reinforced Polymer Reinforcement for Concrete Structures: Guimarães, Portugal, June 26-28, 2013
Fecha: 2013
Materias:
Palabras Clave Informales: debonding, dynamic analysis, flexural strengthering, cracking, concrete
Escuela: E.T.S.I. Industriales (UPM)
Departamento: Aeronaves y Vehículos Espaciales
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

The behaviour of the interface between the FRP and the concrete is the key factor controlling debonding failures in FRP-strengthened RC structures. This defect can cause reductions in static strength, structural integrity and the change in the dynamic behavior of the structure. The adverse effect on the dynamic behavior of the defects can be utilized as an effective means for identifying and assessing both the location and size of debonding at its earliest stages. The presence of debonding changes the structural dynamic characteristics and might be traced in modal parameters, dynamic strain and wave patterns etc. Detection of minor local defects, as those origin of a future debonding, requires working at high frequencies so that the wavelength of the excited is small and sensitive enough to detect local damage. The development of a spectral element method gives a large potential in high-frequency structural modeling. In contrast to the conventional finite element, since inertial properties are modeled exactly few elements are necessary to capture very accurate solutions at the highest frequencies in large regions. A wide variety of spectral elements have been developed for structural members over finite and semi-infinite regions. The objective of this paper is to develop a Spectral Finite Element Model to efficiently capture the behavior of intermediate debonding of a FRP strengthened RC beam during wave-based diagnostics.

Proyectos asociados

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

Más información

ID de Registro: 36689
Identificador DC: http://oa.upm.es/36689/
Identificador OAI: oai:oa.upm.es:36689
URL Oficial: http://www.frprcs11.uminho.pt/Default.aspx?tabid=1&pageid=29&lang=en-US
Depositado por: Memoria Investigacion
Depositado el: 01 Abr 2016 10:17
Ultima Modificación: 19 Abr 2016 09:34
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