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Flexural Creep Response of Hybrid GFRP–FRC Sandwich Panels
This work was developed within the scope of the research project “Easyfloor—Development of composite sandwich panels for building floor rehabilitation”, which aims at developing an innovative hybrid sandwich panel as an alternative construction system to conventional floor solutions, mainly for buil...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8999824/ https://www.ncbi.nlm.nih.gov/pubmed/35407867 http://dx.doi.org/10.3390/ma15072536 |
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author | Silva, Tiago Correia, Luís Dehshirizadeh, Mozhdeh Sena-Cruz, José |
author_facet | Silva, Tiago Correia, Luís Dehshirizadeh, Mozhdeh Sena-Cruz, José |
author_sort | Silva, Tiago |
collection | PubMed |
description | This work was developed within the scope of the research project “Easyfloor—Development of composite sandwich panels for building floor rehabilitation”, which aims at developing an innovative hybrid sandwich panel as an alternative construction system to conventional floor solutions, mainly for building rehabilitation. The developed hybrid sandwich panel is composed of a top face layer of steel-fibre-reinforced self-compacting concrete (FRC), a core of polyurethane (PUR) closed-cell foam, a bottom face sheet, and lateral webs of glass-fibre-reinforced polymer (GFRP). Full-scale experimental tests on the developed sandwich panels were carried out to characterize their short- and long-term (creep) flexural behaviour. The present work includes a detailed description of the developed panels and the experimental programme carried out and presents and discusses the relevant results. The experimental results showed an almost linear behaviour up to failure. The creep tests were carried out for a period of 180 days, using a creep load equal to 20% of its ultimate loading capacity. An average creep coefficient of 0.27 was obtained for this period. The composed creep model used to simulate the sandwich panel’s creep deflections by considering the individual viscoelastic contributions was able to predict the observed structural response with good accuracy. |
format | Online Article Text |
id | pubmed-8999824 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-89998242022-04-12 Flexural Creep Response of Hybrid GFRP–FRC Sandwich Panels Silva, Tiago Correia, Luís Dehshirizadeh, Mozhdeh Sena-Cruz, José Materials (Basel) Article This work was developed within the scope of the research project “Easyfloor—Development of composite sandwich panels for building floor rehabilitation”, which aims at developing an innovative hybrid sandwich panel as an alternative construction system to conventional floor solutions, mainly for building rehabilitation. The developed hybrid sandwich panel is composed of a top face layer of steel-fibre-reinforced self-compacting concrete (FRC), a core of polyurethane (PUR) closed-cell foam, a bottom face sheet, and lateral webs of glass-fibre-reinforced polymer (GFRP). Full-scale experimental tests on the developed sandwich panels were carried out to characterize their short- and long-term (creep) flexural behaviour. The present work includes a detailed description of the developed panels and the experimental programme carried out and presents and discusses the relevant results. The experimental results showed an almost linear behaviour up to failure. The creep tests were carried out for a period of 180 days, using a creep load equal to 20% of its ultimate loading capacity. An average creep coefficient of 0.27 was obtained for this period. The composed creep model used to simulate the sandwich panel’s creep deflections by considering the individual viscoelastic contributions was able to predict the observed structural response with good accuracy. MDPI 2022-03-30 /pmc/articles/PMC8999824/ /pubmed/35407867 http://dx.doi.org/10.3390/ma15072536 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Silva, Tiago Correia, Luís Dehshirizadeh, Mozhdeh Sena-Cruz, José Flexural Creep Response of Hybrid GFRP–FRC Sandwich Panels |
title | Flexural Creep Response of Hybrid GFRP–FRC Sandwich Panels |
title_full | Flexural Creep Response of Hybrid GFRP–FRC Sandwich Panels |
title_fullStr | Flexural Creep Response of Hybrid GFRP–FRC Sandwich Panels |
title_full_unstemmed | Flexural Creep Response of Hybrid GFRP–FRC Sandwich Panels |
title_short | Flexural Creep Response of Hybrid GFRP–FRC Sandwich Panels |
title_sort | flexural creep response of hybrid gfrp–frc sandwich panels |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8999824/ https://www.ncbi.nlm.nih.gov/pubmed/35407867 http://dx.doi.org/10.3390/ma15072536 |
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