Fiber Reinforced Polymer Laminates for Strengthening of RC Slabs against Punching Shear: A Review

Reinforced concrete flat slabs or flat plates continue to be among the most popular floor systems due to speed of construction and inherent flexibility it offers in relation to locations of partitions. However, flat slab/plate floor systems that are deficient in two-way shear strength are susceptibl...

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Autores principales: Mohamed, Osama Ahmed, Kewalramani, Manish, Khattab, Rania
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7182890/
https://www.ncbi.nlm.nih.gov/pubmed/32204432
http://dx.doi.org/10.3390/polym12030685
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author Mohamed, Osama Ahmed
Kewalramani, Manish
Khattab, Rania
author_facet Mohamed, Osama Ahmed
Kewalramani, Manish
Khattab, Rania
author_sort Mohamed, Osama Ahmed
collection PubMed
description Reinforced concrete flat slabs or flat plates continue to be among the most popular floor systems due to speed of construction and inherent flexibility it offers in relation to locations of partitions. However, flat slab/plate floor systems that are deficient in two-way shear strength are susceptible to brittle failure at a slab–column junction that may propagate and lead to progressive collapse of a larger segment of the structural system. Deficiency in two-way shear strength may be due to design/construction errors, material under-strength, or overload. Fiber reinforced polymer (FRP) composite laminates in the form of sheets and/or strips are used in structurally deficient flat slab systems to enhance the two-way shear capacity, flexural strength, stiffness, and ductility. Glass FRP (GFRP) has been used successfully but carbon FRP (CFRP) sheets/strips/laminates are more commonly used as a practical alternative to other expensive and/or challenging methods such column enlargement. This article reviews the literature on the methodology and effectiveness of utilizing FRP sheets/strips and laminates at the column/slab intersection to enhance punching shear strength of flat slabs.
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spelling pubmed-71828902020-05-01 Fiber Reinforced Polymer Laminates for Strengthening of RC Slabs against Punching Shear: A Review Mohamed, Osama Ahmed Kewalramani, Manish Khattab, Rania Polymers (Basel) Review Reinforced concrete flat slabs or flat plates continue to be among the most popular floor systems due to speed of construction and inherent flexibility it offers in relation to locations of partitions. However, flat slab/plate floor systems that are deficient in two-way shear strength are susceptible to brittle failure at a slab–column junction that may propagate and lead to progressive collapse of a larger segment of the structural system. Deficiency in two-way shear strength may be due to design/construction errors, material under-strength, or overload. Fiber reinforced polymer (FRP) composite laminates in the form of sheets and/or strips are used in structurally deficient flat slab systems to enhance the two-way shear capacity, flexural strength, stiffness, and ductility. Glass FRP (GFRP) has been used successfully but carbon FRP (CFRP) sheets/strips/laminates are more commonly used as a practical alternative to other expensive and/or challenging methods such column enlargement. This article reviews the literature on the methodology and effectiveness of utilizing FRP sheets/strips and laminates at the column/slab intersection to enhance punching shear strength of flat slabs. MDPI 2020-03-19 /pmc/articles/PMC7182890/ /pubmed/32204432 http://dx.doi.org/10.3390/polym12030685 Text en © 2020 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Review
Mohamed, Osama Ahmed
Kewalramani, Manish
Khattab, Rania
Fiber Reinforced Polymer Laminates for Strengthening of RC Slabs against Punching Shear: A Review
title Fiber Reinforced Polymer Laminates for Strengthening of RC Slabs against Punching Shear: A Review
title_full Fiber Reinforced Polymer Laminates for Strengthening of RC Slabs against Punching Shear: A Review
title_fullStr Fiber Reinforced Polymer Laminates for Strengthening of RC Slabs against Punching Shear: A Review
title_full_unstemmed Fiber Reinforced Polymer Laminates for Strengthening of RC Slabs against Punching Shear: A Review
title_short Fiber Reinforced Polymer Laminates for Strengthening of RC Slabs against Punching Shear: A Review
title_sort fiber reinforced polymer laminates for strengthening of rc slabs against punching shear: a review
topic Review
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7182890/
https://www.ncbi.nlm.nih.gov/pubmed/32204432
http://dx.doi.org/10.3390/polym12030685
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