Finite Element Modeling of Bond Behavior of FRP and Steel Plates

Strengthening systems for existing reinforced concrete (RC) structures are increasingly needed due to several problems such as degradation of materials over the time, underdesign, serviceability or seismic upgrading, or new code requirements. In the last decades, strengthening by fibers composite ma...

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Main Authors: Elena Ciampa, Francesca Ceroni, Maria Rosaria Pecce
Format: Article
Language:English
Published: MDPI AG 2021-02-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/14/4/757
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author Elena Ciampa
Francesca Ceroni
Maria Rosaria Pecce
author_facet Elena Ciampa
Francesca Ceroni
Maria Rosaria Pecce
author_sort Elena Ciampa
collection DOAJ
description Strengthening systems for existing reinforced concrete (RC) structures are increasingly needed due to several problems such as degradation of materials over the time, underdesign, serviceability or seismic upgrading, or new code requirements. In the last decades, strengthening by fibers composite materials applied with various techniques (FRP, FRCM, NSM) were largely investigated and theoretical formulations have been introduced in national and international design guidelines. Although they are an excellent strengthening solution, steel plates may represent still a valid traditional alternative, due to low costs, ductile stress-strain behavior, simple and fast mounting with possibility of reusing the material. Guidelines for a correct design are still lack and, therefore, detailed models and design formulas are needed. In this paper, the bond behavior at the plate-concrete interface, which plays a key role for the effectiveness of the strengthening system, is analyzed by means of 3D finite element models calibrated on experimental results available in literature. Parametric analyses were carried out by changing some meaningful parameters.
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spelling doaj.art-e2dad85e16bd459d97bde6a9b875389d2023-12-03T12:34:39ZengMDPI AGMaterials1996-19442021-02-0114475710.3390/ma14040757Finite Element Modeling of Bond Behavior of FRP and Steel PlatesElena Ciampa0Francesca Ceroni1Maria Rosaria Pecce2Department of Engineering, University of Sannio, Piazza Roma, 82100 Benevento, ItalyDepartment of Engineering, University of Napoli Parthenope, Centro Direzionale, 80143 Naples, ItalyDepartment of Engineering, University of Sannio, Piazza Roma, 82100 Benevento, ItalyStrengthening systems for existing reinforced concrete (RC) structures are increasingly needed due to several problems such as degradation of materials over the time, underdesign, serviceability or seismic upgrading, or new code requirements. In the last decades, strengthening by fibers composite materials applied with various techniques (FRP, FRCM, NSM) were largely investigated and theoretical formulations have been introduced in national and international design guidelines. Although they are an excellent strengthening solution, steel plates may represent still a valid traditional alternative, due to low costs, ductile stress-strain behavior, simple and fast mounting with possibility of reusing the material. Guidelines for a correct design are still lack and, therefore, detailed models and design formulas are needed. In this paper, the bond behavior at the plate-concrete interface, which plays a key role for the effectiveness of the strengthening system, is analyzed by means of 3D finite element models calibrated on experimental results available in literature. Parametric analyses were carried out by changing some meaningful parameters.https://www.mdpi.com/1996-1944/14/4/757FRPsteel plateconcreteexternally bonded strengtheningbond behavior3D finite element model
spellingShingle Elena Ciampa
Francesca Ceroni
Maria Rosaria Pecce
Finite Element Modeling of Bond Behavior of FRP and Steel Plates
Materials
FRP
steel plate
concrete
externally bonded strengthening
bond behavior
3D finite element model
title Finite Element Modeling of Bond Behavior of FRP and Steel Plates
title_full Finite Element Modeling of Bond Behavior of FRP and Steel Plates
title_fullStr Finite Element Modeling of Bond Behavior of FRP and Steel Plates
title_full_unstemmed Finite Element Modeling of Bond Behavior of FRP and Steel Plates
title_short Finite Element Modeling of Bond Behavior of FRP and Steel Plates
title_sort finite element modeling of bond behavior of frp and steel plates
topic FRP
steel plate
concrete
externally bonded strengthening
bond behavior
3D finite element model
url https://www.mdpi.com/1996-1944/14/4/757
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