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Comparative Numerical Study on Concrete-Filled Stainless Steel Tubular (CFSST) Columns with Square Sections Exposed to Fire
This paper examines the behavior of square-shaped concrete-filled stainless steel tubular (CFSST) columns on exposure to fire. Behavior of CFSST columns under fire was simulated by sequentially coupled thermal-stress analysis procedure carried out using finite element software ‘ABAQUS’. Initially, the developed numerical models were validated with experimental results available in literature based on temperature distribution with time, axial deflection-time curves, and different modes of failure. Later, fire resistance times of CFSST columns of different grades of stainless steel were evaluated for ISO 834 standard fire. Among them, the performance of austenitic grade was found better than ferritic and duplex grades. The other parameters investigated in the test program included cross-section dimension, axial load ratio (0.60–0.75), and the ratio of steel to concrete (0.056–0.085). The findings of these parametric studies are later addressed in the paper and the fire responses for possible sets of variables are evaluated.
Comparative Numerical Study on Concrete-Filled Stainless Steel Tubular (CFSST) Columns with Square Sections Exposed to Fire
This paper examines the behavior of square-shaped concrete-filled stainless steel tubular (CFSST) columns on exposure to fire. Behavior of CFSST columns under fire was simulated by sequentially coupled thermal-stress analysis procedure carried out using finite element software ‘ABAQUS’. Initially, the developed numerical models were validated with experimental results available in literature based on temperature distribution with time, axial deflection-time curves, and different modes of failure. Later, fire resistance times of CFSST columns of different grades of stainless steel were evaluated for ISO 834 standard fire. Among them, the performance of austenitic grade was found better than ferritic and duplex grades. The other parameters investigated in the test program included cross-section dimension, axial load ratio (0.60–0.75), and the ratio of steel to concrete (0.056–0.085). The findings of these parametric studies are later addressed in the paper and the fire responses for possible sets of variables are evaluated.
Comparative Numerical Study on Concrete-Filled Stainless Steel Tubular (CFSST) Columns with Square Sections Exposed to Fire
Lecture Notes in Civil Engineering
Alam, M. Shahria (editor) / Hasan, G. M. Jahid (editor) / Billah, A. H. M. Muntasir (editor) / Islam, Kamrul (editor) / Abrar, Rumman (author) / Neloy, Q. M. Arefin Bin Zaman (author) / Ahmed, Shameem (author)
International Conference on Advances in Civil Infrastructure and Construction Materials ; 2023 ; Dhaka, Bangladesh
2024-08-22
9 pages
Article/Chapter (Book)
Electronic Resource
English
Stainless steel , Concrete-filled , Stub column , Finite element , Thermal stress analysis , Fire resistance time Engineering , Construction Management , Geotechnical Engineering & Applied Earth Sciences , Structural Materials , Building Construction and Design , Geoengineering, Foundations, Hydraulics
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