Cargando…

Non-linear finite element modeling of damages in bridge piers subjected to lateral monotonic loading

Bridges are among the most vulnerable structures to earthquake damage. Most bridges are seismically inadequate due to outdated bridge design codes and poor construction methods in developing countries. Although expensive, experimental studies are useful in evaluating bridge piers. As an alternative,...

Descripción completa

Detalles Bibliográficos
Autores principales: Ahmad, Aizaz, Ahmed, Awais, Iqbal, Mudassir, Ali, Syed Muhammad, Khan, Ghufranullah, Eldin, Syed M., Yosri, Ahmed. M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10439226/
https://www.ncbi.nlm.nih.gov/pubmed/37596341
http://dx.doi.org/10.1038/s41598-023-39577-6
_version_ 1785092900576559104
author Ahmad, Aizaz
Ahmed, Awais
Iqbal, Mudassir
Ali, Syed Muhammad
Khan, Ghufranullah
Eldin, Syed M.
Yosri, Ahmed. M.
author_facet Ahmad, Aizaz
Ahmed, Awais
Iqbal, Mudassir
Ali, Syed Muhammad
Khan, Ghufranullah
Eldin, Syed M.
Yosri, Ahmed. M.
author_sort Ahmad, Aizaz
collection PubMed
description Bridges are among the most vulnerable structures to earthquake damage. Most bridges are seismically inadequate due to outdated bridge design codes and poor construction methods in developing countries. Although expensive, experimental studies are useful in evaluating bridge piers. As an alternative, numerical tools are used to evaluate bridge piers, and many numerical techniques can be applied in this context. This study employs Abaqus/Explicit, a finite element program, to model bridge piers nonlinearly and validate the proposed computational method using experimental data. In the finite element program, a single bridge pier having a circular geometry that is being subjected to a monotonic lateral load is simulated. In order to depict damages, Concrete Damage Plasticity (CDP), a damage model based on plasticity, is adopted. Concrete crushing and tensile cracking are the primary failure mechanisms as per CDP. The CDP parameters are determined by employing modified Kent and Park model for concrete compressive behavior and an exponential relation for tension stiffening. The performance of the bridge pier is investigated using an existing evaluation criterion. The influence of the stress–strain relation, the compressive strength of concrete, and geometric configuration are taken into consideration during the parametric analysis. It has been observed that the stress–strain relation, concrete strength, and configuration all have a significant impact on the column response.
format Online
Article
Text
id pubmed-10439226
institution National Center for Biotechnology Information
language English
publishDate 2023
publisher Nature Publishing Group UK
record_format MEDLINE/PubMed
spelling pubmed-104392262023-08-20 Non-linear finite element modeling of damages in bridge piers subjected to lateral monotonic loading Ahmad, Aizaz Ahmed, Awais Iqbal, Mudassir Ali, Syed Muhammad Khan, Ghufranullah Eldin, Syed M. Yosri, Ahmed. M. Sci Rep Article Bridges are among the most vulnerable structures to earthquake damage. Most bridges are seismically inadequate due to outdated bridge design codes and poor construction methods in developing countries. Although expensive, experimental studies are useful in evaluating bridge piers. As an alternative, numerical tools are used to evaluate bridge piers, and many numerical techniques can be applied in this context. This study employs Abaqus/Explicit, a finite element program, to model bridge piers nonlinearly and validate the proposed computational method using experimental data. In the finite element program, a single bridge pier having a circular geometry that is being subjected to a monotonic lateral load is simulated. In order to depict damages, Concrete Damage Plasticity (CDP), a damage model based on plasticity, is adopted. Concrete crushing and tensile cracking are the primary failure mechanisms as per CDP. The CDP parameters are determined by employing modified Kent and Park model for concrete compressive behavior and an exponential relation for tension stiffening. The performance of the bridge pier is investigated using an existing evaluation criterion. The influence of the stress–strain relation, the compressive strength of concrete, and geometric configuration are taken into consideration during the parametric analysis. It has been observed that the stress–strain relation, concrete strength, and configuration all have a significant impact on the column response. Nature Publishing Group UK 2023-08-18 /pmc/articles/PMC10439226/ /pubmed/37596341 http://dx.doi.org/10.1038/s41598-023-39577-6 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Ahmad, Aizaz
Ahmed, Awais
Iqbal, Mudassir
Ali, Syed Muhammad
Khan, Ghufranullah
Eldin, Syed M.
Yosri, Ahmed. M.
Non-linear finite element modeling of damages in bridge piers subjected to lateral monotonic loading
title Non-linear finite element modeling of damages in bridge piers subjected to lateral monotonic loading
title_full Non-linear finite element modeling of damages in bridge piers subjected to lateral monotonic loading
title_fullStr Non-linear finite element modeling of damages in bridge piers subjected to lateral monotonic loading
title_full_unstemmed Non-linear finite element modeling of damages in bridge piers subjected to lateral monotonic loading
title_short Non-linear finite element modeling of damages in bridge piers subjected to lateral monotonic loading
title_sort non-linear finite element modeling of damages in bridge piers subjected to lateral monotonic loading
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10439226/
https://www.ncbi.nlm.nih.gov/pubmed/37596341
http://dx.doi.org/10.1038/s41598-023-39577-6
work_keys_str_mv AT ahmadaizaz nonlinearfiniteelementmodelingofdamagesinbridgepierssubjectedtolateralmonotonicloading
AT ahmedawais nonlinearfiniteelementmodelingofdamagesinbridgepierssubjectedtolateralmonotonicloading
AT iqbalmudassir nonlinearfiniteelementmodelingofdamagesinbridgepierssubjectedtolateralmonotonicloading
AT alisyedmuhammad nonlinearfiniteelementmodelingofdamagesinbridgepierssubjectedtolateralmonotonicloading
AT khanghufranullah nonlinearfiniteelementmodelingofdamagesinbridgepierssubjectedtolateralmonotonicloading
AT eldinsyedm nonlinearfiniteelementmodelingofdamagesinbridgepierssubjectedtolateralmonotonicloading
AT yosriahmedm nonlinearfiniteelementmodelingofdamagesinbridgepierssubjectedtolateralmonotonicloading