Part I: failure criteria of the steel-concrete columns (SRC columns) confined by cross-shaped flange sections
The aim of this paper was to present the fracture criteria of the SRC columns based on the nonlinear analytical model. This study explored the flexural behavior of the SRC columns confined by the cross-shaped flange sections encased in the structural concrete which are subjected to the flexural load...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2021-03-01
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| Series: | Journal of Asian Architecture and Building Engineering |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/13467581.2020.1782211 |
| _version_ | 1797755693579632640 |
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| author | Dinh Han Nguyen Won-Kee Hong |
| author_facet | Dinh Han Nguyen Won-Kee Hong |
| author_sort | Dinh Han Nguyen |
| collection | DOAJ |
| description | The aim of this paper was to present the fracture criteria of the SRC columns based on the nonlinear analytical model. This study explored the flexural behavior of the SRC columns confined by the cross-shaped flange sections encased in the structural concrete which are subjected to the flexural loads and the axial loads with 40% of the axial loads relative to the nominal axial load capacity. The confinements of the concrete columns in the compression zone provided by both the transverse reinforcements and the cross-shaped wide steels were evaluated based on an analytical model under axial and lateral loads. The increased flexural strength of the SRC columns by the confined effects offered by steel cores was also calculated. The composite actions of the cross-shaped flange sections that interacted with concrete were found to increase the flexural strength from 20% to 55%, depending on the spacing of the hoop reinforcement of the columns, compared with when composite actions were not accounted. The flexural capacities were underestimated substantially as the axial loads increased when the confinement provided by steel section was not accounted. |
| first_indexed | 2024-03-12T17:49:50Z |
| format | Article |
| id | doaj.art-c125b56fb2ac46a799cb926d3221f2ca |
| institution | Directory Open Access Journal |
| issn | 1347-2852 |
| language | English |
| last_indexed | 2024-03-12T17:49:50Z |
| publishDate | 2021-03-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of Asian Architecture and Building Engineering |
| spelling | doaj.art-c125b56fb2ac46a799cb926d3221f2ca2023-08-03T09:07:50ZengTaylor & Francis GroupJournal of Asian Architecture and Building Engineering1347-28522021-03-0120217919210.1080/13467581.2020.17822111782211Part I: failure criteria of the steel-concrete columns (SRC columns) confined by cross-shaped flange sectionsDinh Han Nguyen0Won-Kee Hong1Kyung Hee UniversityKyung Hee UniversityThe aim of this paper was to present the fracture criteria of the SRC columns based on the nonlinear analytical model. This study explored the flexural behavior of the SRC columns confined by the cross-shaped flange sections encased in the structural concrete which are subjected to the flexural loads and the axial loads with 40% of the axial loads relative to the nominal axial load capacity. The confinements of the concrete columns in the compression zone provided by both the transverse reinforcements and the cross-shaped wide steels were evaluated based on an analytical model under axial and lateral loads. The increased flexural strength of the SRC columns by the confined effects offered by steel cores was also calculated. The composite actions of the cross-shaped flange sections that interacted with concrete were found to increase the flexural strength from 20% to 55%, depending on the spacing of the hoop reinforcement of the columns, compared with when composite actions were not accounted. The flexural capacities were underestimated substantially as the axial loads increased when the confinement provided by steel section was not accounted.http://dx.doi.org/10.1080/13467581.2020.1782211steel columns encased in structural concreteconfinement by steel sectionsequivalent confinement factorscross-shaped steel sectionthree-dimensional p-m diagram |
| spellingShingle | Dinh Han Nguyen Won-Kee Hong Part I: failure criteria of the steel-concrete columns (SRC columns) confined by cross-shaped flange sections Journal of Asian Architecture and Building Engineering steel columns encased in structural concrete confinement by steel sections equivalent confinement factors cross-shaped steel section three-dimensional p-m diagram |
| title | Part I: failure criteria of the steel-concrete columns (SRC columns) confined by cross-shaped flange sections |
| title_full | Part I: failure criteria of the steel-concrete columns (SRC columns) confined by cross-shaped flange sections |
| title_fullStr | Part I: failure criteria of the steel-concrete columns (SRC columns) confined by cross-shaped flange sections |
| title_full_unstemmed | Part I: failure criteria of the steel-concrete columns (SRC columns) confined by cross-shaped flange sections |
| title_short | Part I: failure criteria of the steel-concrete columns (SRC columns) confined by cross-shaped flange sections |
| title_sort | part i failure criteria of the steel concrete columns src columns confined by cross shaped flange sections |
| topic | steel columns encased in structural concrete confinement by steel sections equivalent confinement factors cross-shaped steel section three-dimensional p-m diagram |
| url | http://dx.doi.org/10.1080/13467581.2020.1782211 |
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