Investigation of the effect of impact load on concrete-filled steel tube columns under fire
Concrete-filled steel tube (CFST) columns are increasingly used in the construction of high-rise buildings which require high strength and large working space especially at lower stories. As compared to reinforced concrete columns, existence of the exterior steel tube not only bears a portion of axi...
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| Format: | Article |
| Language: | English |
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Gruppo Italiano Frattura
2020-09-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | https://www.fracturae.com/index.php/fis/article/view/2917 |
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| author | Ali Golsoorat Pahlaviani Ali Mohammad Rousta Peyman Beiranvand |
| author_facet | Ali Golsoorat Pahlaviani Ali Mohammad Rousta Peyman Beiranvand |
| author_sort | Ali Golsoorat Pahlaviani |
| collection | DOAJ |
| description | Concrete-filled steel tube (CFST) columns are increasingly used in the construction of high-rise buildings which require high strength and large working space especially at lower stories. As compared to reinforced concrete columns, existence of the exterior steel tube not only bears a portion of axial load but also most importantly provides confinement to the infill concrete.with the confinement provided by the steel tube, axial strength of the infill concrete can be largely enhanced.this paper presents the investigation effect of impact load on concrete-filled steel tube columns under fire by numerical simulations using ABAQUS software.the results indicate that the CFST sections with larger confinement factor ξ=1.23 behaved in a very ductile manner under lateral impact. And the sections with smaller confinement factor ξ=0.44 generally behaved in a brittle mechanism. |
| format | Article |
| id | doaj-art-a8b64041bd174baca1eb11e8fb11bac6 |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2020-09-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-a8b64041bd174baca1eb11e8fb11bac62025-01-03T00:40:24ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932020-09-011454Investigation of the effect of impact load on concrete-filled steel tube columns under fireAli Golsoorat Pahlaviani0Ali Mohammad Rousta1Peyman Beiranvand2Central Tehran Branch, Islamic Azad University, Tehran.Department of Civil Engineering, Yasouj University, Yasouj.Department of Civil Engineering, Razi University, Kermanshah.Concrete-filled steel tube (CFST) columns are increasingly used in the construction of high-rise buildings which require high strength and large working space especially at lower stories. As compared to reinforced concrete columns, existence of the exterior steel tube not only bears a portion of axial load but also most importantly provides confinement to the infill concrete.with the confinement provided by the steel tube, axial strength of the infill concrete can be largely enhanced.this paper presents the investigation effect of impact load on concrete-filled steel tube columns under fire by numerical simulations using ABAQUS software.the results indicate that the CFST sections with larger confinement factor ξ=1.23 behaved in a very ductile manner under lateral impact. And the sections with smaller confinement factor ξ=0.44 generally behaved in a brittle mechanism.https://www.fracturae.com/index.php/fis/article/view/2917Concrete-Filled Steel TubeImpact loadConfinement factor |
| spellingShingle | Ali Golsoorat Pahlaviani Ali Mohammad Rousta Peyman Beiranvand Investigation of the effect of impact load on concrete-filled steel tube columns under fire Fracture and Structural Integrity Concrete-Filled Steel Tube Impact load Confinement factor |
| title | Investigation of the effect of impact load on concrete-filled steel tube columns under fire |
| title_full | Investigation of the effect of impact load on concrete-filled steel tube columns under fire |
| title_fullStr | Investigation of the effect of impact load on concrete-filled steel tube columns under fire |
| title_full_unstemmed | Investigation of the effect of impact load on concrete-filled steel tube columns under fire |
| title_short | Investigation of the effect of impact load on concrete-filled steel tube columns under fire |
| title_sort | investigation of the effect of impact load on concrete filled steel tube columns under fire |
| topic | Concrete-Filled Steel Tube Impact load Confinement factor |
| url | https://www.fracturae.com/index.php/fis/article/view/2917 |
| work_keys_str_mv | AT aligolsooratpahlaviani investigationoftheeffectofimpactloadonconcretefilledsteeltubecolumnsunderfire AT alimohammadrousta investigationoftheeffectofimpactloadonconcretefilledsteeltubecolumnsunderfire AT peymanbeiranvand investigationoftheeffectofimpactloadonconcretefilledsteeltubecolumnsunderfire |