Abstract
A wide range of experimental data is collected in this paper and used to develop refined FE models to simulate concrete-filled steel tubular (CFST) stub columns under axial compression. The simulation is based on the concrete damaged plasticity material model, where a new strain hardening/softening function is developed for confined concrete and new models are introduced for a few material parameters used in the concrete model. The prediction accuracy from the current model is compared with that of an existing FE model, which has been well established and widely used by many researchers. The comparison indicates that the new model is more versatile and accurate to be used in modelling CFST stub columns, even when high-strength concrete and/or thin-walled tubes are used.
| Original language | English |
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| Title of host publication | ASEC 2014: Structural Engineering in Australasia: World Standard: Proceedings of the Australasian Structural Engineering Conference: 9-11 July 2014, Auckland, New Zealand |
| Publisher | Structural Engineering Society New Zealand |
| Number of pages | 10 |
| Publication status | Published - 2014 |
| Event | Australasian Structural Engineering Conference - Duration: 9 Jul 2014 → … |
Conference
| Conference | Australasian Structural Engineering Conference |
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| Period | 9/07/14 → … |