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Research on stress performance of universally wrapped assembled joints of lattice wind power tower with concrete-filled steel tube

With the control parameters of the wall thickness of the ball table and the thickness of the pressure plate of the ball table, four universal wrapped assembled joint models were designed for the research of stress performance via static loading test. The failure mode of the joint, the axial force–di...

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Autores principales: Wen, Yang, Liu, Zhen, Xiong, Wen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9886941/
https://www.ncbi.nlm.nih.gov/pubmed/36717681
http://dx.doi.org/10.1038/s41598-023-28929-x
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author Wen, Yang
Liu, Zhen
Xiong, Wen
author_facet Wen, Yang
Liu, Zhen
Xiong, Wen
author_sort Wen, Yang
collection PubMed
description With the control parameters of the wall thickness of the ball table and the thickness of the pressure plate of the ball table, four universal wrapped assembled joint models were designed for the research of stress performance via static loading test. The failure mode of the joint, the axial force–displacement curve of the web member, the equivalent stress distribution of the ball table and the pressure plate of the ball table were analyzed, and the ABQAUS finite element software was used for the analysis of parameter expansion of the specimen. The research results show that the failure modes of universally wrapped assembled joints can be divided into the buckling failure of the ball table and the strength failure of the material. The wall thickness of the ball table is the key parameter affecting the failure mode of the joints, and the thickness of the pressure plate of the ball table is the crucial parameter influencing the ultimate bearing capacity of the joints. The maximum equivalent stress of the pressure plate and the ball table at compression zone for all the joints is occurred at the side squeezed by the bolt ball, and the growth rate of the equivalent stress for the ball table at compression zone is more uniform than that at tension zone. According to the finite element analysis results, when the wall thickness of the ball table is greater than 7 mm, the thickness of the pressure plate of the ball table is greater than 16 mm, the growth rate of the ultimate bearing capacity of the joint is significantly decreased, therefore, it is recommended to use the wall thickness of 7 mm and the pressure plate thickness of 16 mm in the actual design of the project.
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spelling pubmed-98869412023-02-01 Research on stress performance of universally wrapped assembled joints of lattice wind power tower with concrete-filled steel tube Wen, Yang Liu, Zhen Xiong, Wen Sci Rep Article With the control parameters of the wall thickness of the ball table and the thickness of the pressure plate of the ball table, four universal wrapped assembled joint models were designed for the research of stress performance via static loading test. The failure mode of the joint, the axial force–displacement curve of the web member, the equivalent stress distribution of the ball table and the pressure plate of the ball table were analyzed, and the ABQAUS finite element software was used for the analysis of parameter expansion of the specimen. The research results show that the failure modes of universally wrapped assembled joints can be divided into the buckling failure of the ball table and the strength failure of the material. The wall thickness of the ball table is the key parameter affecting the failure mode of the joints, and the thickness of the pressure plate of the ball table is the crucial parameter influencing the ultimate bearing capacity of the joints. The maximum equivalent stress of the pressure plate and the ball table at compression zone for all the joints is occurred at the side squeezed by the bolt ball, and the growth rate of the equivalent stress for the ball table at compression zone is more uniform than that at tension zone. According to the finite element analysis results, when the wall thickness of the ball table is greater than 7 mm, the thickness of the pressure plate of the ball table is greater than 16 mm, the growth rate of the ultimate bearing capacity of the joint is significantly decreased, therefore, it is recommended to use the wall thickness of 7 mm and the pressure plate thickness of 16 mm in the actual design of the project. Nature Publishing Group UK 2023-01-30 /pmc/articles/PMC9886941/ /pubmed/36717681 http://dx.doi.org/10.1038/s41598-023-28929-x 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
Wen, Yang
Liu, Zhen
Xiong, Wen
Research on stress performance of universally wrapped assembled joints of lattice wind power tower with concrete-filled steel tube
title Research on stress performance of universally wrapped assembled joints of lattice wind power tower with concrete-filled steel tube
title_full Research on stress performance of universally wrapped assembled joints of lattice wind power tower with concrete-filled steel tube
title_fullStr Research on stress performance of universally wrapped assembled joints of lattice wind power tower with concrete-filled steel tube
title_full_unstemmed Research on stress performance of universally wrapped assembled joints of lattice wind power tower with concrete-filled steel tube
title_short Research on stress performance of universally wrapped assembled joints of lattice wind power tower with concrete-filled steel tube
title_sort research on stress performance of universally wrapped assembled joints of lattice wind power tower with concrete-filled steel tube
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9886941/
https://www.ncbi.nlm.nih.gov/pubmed/36717681
http://dx.doi.org/10.1038/s41598-023-28929-x
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