Cargando…

Anti-Blast Performance of Polyurea-Coated Concrete Arch Structures

With the increasing number of violent terrorist attacks around the world, it is quite a common to improve the anti-blast performance of structures by reinforcing the exterior of the structure. In order to explore the dynamic performance of polyurea reinforced concrete arch structures, a three-dimens...

Descripción completa

Detalles Bibliográficos
Autores principales: Yue, Zhengyuan, Zhou, Jiannan, Kong, Xinli, Xu, Ying, Chen, Yishun, Wang, Bo, Huang, Yimiao, Wang, Peng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10007497/
https://www.ncbi.nlm.nih.gov/pubmed/36904503
http://dx.doi.org/10.3390/polym15051263
_version_ 1784905536134709248
author Yue, Zhengyuan
Zhou, Jiannan
Kong, Xinli
Xu, Ying
Chen, Yishun
Wang, Bo
Huang, Yimiao
Wang, Peng
author_facet Yue, Zhengyuan
Zhou, Jiannan
Kong, Xinli
Xu, Ying
Chen, Yishun
Wang, Bo
Huang, Yimiao
Wang, Peng
author_sort Yue, Zhengyuan
collection PubMed
description With the increasing number of violent terrorist attacks around the world, it is quite a common to improve the anti-blast performance of structures by reinforcing the exterior of the structure. In order to explore the dynamic performance of polyurea reinforced concrete arch structures, a three-dimensional finite element model was established by LS-DYNA software in this paper. Under the condition of ensuring the validity of the simulation model, the dynamic response of the arch structure under the blast load is investigated. Deflection and vibration of the structure under different reinforcement models are discussed. The optimum thickness of reinforcement (approximately 5 mm) and the strengthening method for the model were found by deformation analysis. The vibration analysis shows that the vibration damping effect of the sandwich arch structure is relatively excellent, but increasing the thickness and number of layers of the polyurea does not necessarily achieve a better vibration damping function for the structure. By reasonable design of the polyurea reinforcement layer and concrete arch structure, a protective structure with excellent performance of anti-blast and vibration damping can be created. Polyurea can be used as a new form of reinforcement in practical applications.
format Online
Article
Text
id pubmed-10007497
institution National Center for Biotechnology Information
language English
publishDate 2023
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-100074972023-03-12 Anti-Blast Performance of Polyurea-Coated Concrete Arch Structures Yue, Zhengyuan Zhou, Jiannan Kong, Xinli Xu, Ying Chen, Yishun Wang, Bo Huang, Yimiao Wang, Peng Polymers (Basel) Article With the increasing number of violent terrorist attacks around the world, it is quite a common to improve the anti-blast performance of structures by reinforcing the exterior of the structure. In order to explore the dynamic performance of polyurea reinforced concrete arch structures, a three-dimensional finite element model was established by LS-DYNA software in this paper. Under the condition of ensuring the validity of the simulation model, the dynamic response of the arch structure under the blast load is investigated. Deflection and vibration of the structure under different reinforcement models are discussed. The optimum thickness of reinforcement (approximately 5 mm) and the strengthening method for the model were found by deformation analysis. The vibration analysis shows that the vibration damping effect of the sandwich arch structure is relatively excellent, but increasing the thickness and number of layers of the polyurea does not necessarily achieve a better vibration damping function for the structure. By reasonable design of the polyurea reinforcement layer and concrete arch structure, a protective structure with excellent performance of anti-blast and vibration damping can be created. Polyurea can be used as a new form of reinforcement in practical applications. MDPI 2023-03-02 /pmc/articles/PMC10007497/ /pubmed/36904503 http://dx.doi.org/10.3390/polym15051263 Text en © 2023 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
Yue, Zhengyuan
Zhou, Jiannan
Kong, Xinli
Xu, Ying
Chen, Yishun
Wang, Bo
Huang, Yimiao
Wang, Peng
Anti-Blast Performance of Polyurea-Coated Concrete Arch Structures
title Anti-Blast Performance of Polyurea-Coated Concrete Arch Structures
title_full Anti-Blast Performance of Polyurea-Coated Concrete Arch Structures
title_fullStr Anti-Blast Performance of Polyurea-Coated Concrete Arch Structures
title_full_unstemmed Anti-Blast Performance of Polyurea-Coated Concrete Arch Structures
title_short Anti-Blast Performance of Polyurea-Coated Concrete Arch Structures
title_sort anti-blast performance of polyurea-coated concrete arch structures
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10007497/
https://www.ncbi.nlm.nih.gov/pubmed/36904503
http://dx.doi.org/10.3390/polym15051263
work_keys_str_mv AT yuezhengyuan antiblastperformanceofpolyureacoatedconcretearchstructures
AT zhoujiannan antiblastperformanceofpolyureacoatedconcretearchstructures
AT kongxinli antiblastperformanceofpolyureacoatedconcretearchstructures
AT xuying antiblastperformanceofpolyureacoatedconcretearchstructures
AT chenyishun antiblastperformanceofpolyureacoatedconcretearchstructures
AT wangbo antiblastperformanceofpolyureacoatedconcretearchstructures
AT huangyimiao antiblastperformanceofpolyureacoatedconcretearchstructures
AT wangpeng antiblastperformanceofpolyureacoatedconcretearchstructures