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Test on Compressive Performance of Concrete Filled Circular Steel Tube Connected by Thread through Inner Lining Tube
The connection method of lengthening the steel tube of concrete filled circular steel tubes by inner lining tube and threaded connection is proposed. Taking the length, depth, and position of the thread as the basic parameters, 12 concrete filled circular steel tubes connected by thread through inne...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9736499/ https://www.ncbi.nlm.nih.gov/pubmed/36500115 http://dx.doi.org/10.3390/ma15238619 |
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author | Wang, Qingli Zhang, Yijing Peng, Kuan |
author_facet | Wang, Qingli Zhang, Yijing Peng, Kuan |
author_sort | Wang, Qingli |
collection | PubMed |
description | The connection method of lengthening the steel tube of concrete filled circular steel tubes by inner lining tube and threaded connection is proposed. Taking the length, depth, and position of the thread as the basic parameters, 12 concrete filled circular steel tubes connected by thread through inner lining tube were designed and manufactured, and an axial compressive test was carried out. The axial compressive loading-longitudinal compressive displacement curves, axial compressive loading-strain of steel tube curves, and failure mode of the specimens were analyzed, and the effects of different parameters on the axial compressive bearing capacity and stiffness of the specimens were studied. The results show that the axial compressive loading-longitudinal compressive displacement curves of the specimen can be divided into the elastic stage, elasto-plastic stage, and plastic reinforcement stage in the range of parameters studied in this paper. The bearing capacity and stiffness of the specimens connected by thread through inner lining tube are no worse than those of the unconnected specimen or the specimen connected by weld. Bearing capacity and stiffness of the specimen increase with the increase of thread length. The calculation method of the axial compressive bearing capacity of concrete filled circular steel tubes connected by thread through inner lining tube are suggested. |
format | Online Article Text |
id | pubmed-9736499 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-97364992022-12-11 Test on Compressive Performance of Concrete Filled Circular Steel Tube Connected by Thread through Inner Lining Tube Wang, Qingli Zhang, Yijing Peng, Kuan Materials (Basel) Article The connection method of lengthening the steel tube of concrete filled circular steel tubes by inner lining tube and threaded connection is proposed. Taking the length, depth, and position of the thread as the basic parameters, 12 concrete filled circular steel tubes connected by thread through inner lining tube were designed and manufactured, and an axial compressive test was carried out. The axial compressive loading-longitudinal compressive displacement curves, axial compressive loading-strain of steel tube curves, and failure mode of the specimens were analyzed, and the effects of different parameters on the axial compressive bearing capacity and stiffness of the specimens were studied. The results show that the axial compressive loading-longitudinal compressive displacement curves of the specimen can be divided into the elastic stage, elasto-plastic stage, and plastic reinforcement stage in the range of parameters studied in this paper. The bearing capacity and stiffness of the specimens connected by thread through inner lining tube are no worse than those of the unconnected specimen or the specimen connected by weld. Bearing capacity and stiffness of the specimen increase with the increase of thread length. The calculation method of the axial compressive bearing capacity of concrete filled circular steel tubes connected by thread through inner lining tube are suggested. MDPI 2022-12-02 /pmc/articles/PMC9736499/ /pubmed/36500115 http://dx.doi.org/10.3390/ma15238619 Text en © 2022 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 Wang, Qingli Zhang, Yijing Peng, Kuan Test on Compressive Performance of Concrete Filled Circular Steel Tube Connected by Thread through Inner Lining Tube |
title | Test on Compressive Performance of Concrete Filled Circular Steel Tube Connected by Thread through Inner Lining Tube |
title_full | Test on Compressive Performance of Concrete Filled Circular Steel Tube Connected by Thread through Inner Lining Tube |
title_fullStr | Test on Compressive Performance of Concrete Filled Circular Steel Tube Connected by Thread through Inner Lining Tube |
title_full_unstemmed | Test on Compressive Performance of Concrete Filled Circular Steel Tube Connected by Thread through Inner Lining Tube |
title_short | Test on Compressive Performance of Concrete Filled Circular Steel Tube Connected by Thread through Inner Lining Tube |
title_sort | test on compressive performance of concrete filled circular steel tube connected by thread through inner lining tube |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9736499/ https://www.ncbi.nlm.nih.gov/pubmed/36500115 http://dx.doi.org/10.3390/ma15238619 |
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