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Strengthening of Existing Bridge Structures for Shear and Bending with Carbon Textile-Reinforced Mortar

Increasing traffic loads and changes in code provisions lead to deficits in shear and flexural capacity of many existing highway bridges. Therefore, a large number of structures are expected to require refurbishment and strengthening in the future. This projection is based on the current condition o...

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Autores principales: Herbrand, Martin, Adam, Viviane, Classen, Martin, Kueres, Dominik, Hegger, Josef
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5615753/
https://www.ncbi.nlm.nih.gov/pubmed/28925962
http://dx.doi.org/10.3390/ma10091099
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author Herbrand, Martin
Adam, Viviane
Classen, Martin
Kueres, Dominik
Hegger, Josef
author_facet Herbrand, Martin
Adam, Viviane
Classen, Martin
Kueres, Dominik
Hegger, Josef
author_sort Herbrand, Martin
collection PubMed
description Increasing traffic loads and changes in code provisions lead to deficits in shear and flexural capacity of many existing highway bridges. Therefore, a large number of structures are expected to require refurbishment and strengthening in the future. This projection is based on the current condition of many older road bridges. Different strengthening methods for bridges exist to extend their service life, all having specific advantages and disadvantages. By applying a thin layer of carbon textile-reinforced mortar (CTRM) to bridge deck slabs and the webs of pre-stressed concrete bridges, the fatigue and ultimate strength of these members can be increased significantly. The CTRM layer is a combination of a corrosion resistant carbon fiber reinforced polymer (CFRP) fabric and an efficient mortar. In this paper, the strengthening method and the experimental results obtained at RWTH Aachen University are presented.
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spelling pubmed-56157532017-09-28 Strengthening of Existing Bridge Structures for Shear and Bending with Carbon Textile-Reinforced Mortar Herbrand, Martin Adam, Viviane Classen, Martin Kueres, Dominik Hegger, Josef Materials (Basel) Article Increasing traffic loads and changes in code provisions lead to deficits in shear and flexural capacity of many existing highway bridges. Therefore, a large number of structures are expected to require refurbishment and strengthening in the future. This projection is based on the current condition of many older road bridges. Different strengthening methods for bridges exist to extend their service life, all having specific advantages and disadvantages. By applying a thin layer of carbon textile-reinforced mortar (CTRM) to bridge deck slabs and the webs of pre-stressed concrete bridges, the fatigue and ultimate strength of these members can be increased significantly. The CTRM layer is a combination of a corrosion resistant carbon fiber reinforced polymer (CFRP) fabric and an efficient mortar. In this paper, the strengthening method and the experimental results obtained at RWTH Aachen University are presented. MDPI 2017-09-19 /pmc/articles/PMC5615753/ /pubmed/28925962 http://dx.doi.org/10.3390/ma10091099 Text en © 2017 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 Article
Herbrand, Martin
Adam, Viviane
Classen, Martin
Kueres, Dominik
Hegger, Josef
Strengthening of Existing Bridge Structures for Shear and Bending with Carbon Textile-Reinforced Mortar
title Strengthening of Existing Bridge Structures for Shear and Bending with Carbon Textile-Reinforced Mortar
title_full Strengthening of Existing Bridge Structures for Shear and Bending with Carbon Textile-Reinforced Mortar
title_fullStr Strengthening of Existing Bridge Structures for Shear and Bending with Carbon Textile-Reinforced Mortar
title_full_unstemmed Strengthening of Existing Bridge Structures for Shear and Bending with Carbon Textile-Reinforced Mortar
title_short Strengthening of Existing Bridge Structures for Shear and Bending with Carbon Textile-Reinforced Mortar
title_sort strengthening of existing bridge structures for shear and bending with carbon textile-reinforced mortar
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5615753/
https://www.ncbi.nlm.nih.gov/pubmed/28925962
http://dx.doi.org/10.3390/ma10091099
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