Abstract
Test results of 16 concrete-filled double skin steel tubular (CFDST) beam-columns are presented in this paper. Two types of column with different cross-sections were investigated, i.e. circular hollow section (CHS) inner and CHS outer, CHS inner and square hollow section (SHS) outer, respectively. Other parameters explored were load eccentricity, slenderness ratio and fire exposure time. It was found that the fire exposure had significant influence on the performance of CFDST beam-columns. A finite element (FE) modelling technique was then developed to predict the structural response of the composite members after exposure to fire. Reasonable agreement is obtained between the predicted load-deformation curves and the test results. It is therefore possible to conduct further investigation on the mechanisms of the composite beam-columns by using the FE modelling.
| Original language | English |
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| Title of host publication | Proceedings of Sixth International Conference on Advances in Steel Structures: ICASS '09, Hong Kong, China, 16-18 December 2009 |
| Publisher | Hong Kong Institute of Steel Construction |
| Pages | 794-801 |
| Number of pages | 8 |
| ISBN (Print) | 9789889914066 |
| Publication status | Published - 2009 |
| Event | International Conference on Advances in Steel Structures - Duration: 14 Apr 2012 → … |
Conference
| Conference | International Conference on Advances in Steel Structures |
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| Period | 14/04/12 → … |