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Computers and Concrete Volume 2, Number 4, August 2005, pages 249-266 DOI: http://dx.doi.org/10.12989/cac.2005.2.4.249 |
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Three-dimensional FE analysis of headed stud anchors exposed to fire |
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Josko Ozbolt, Ivica Kozar, Rolf Eligehausen and Goran Periskic
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| Abstract [Full Text] | ||
| In the present paper a transient three-dimensional thermo-mechanical model for concrete is presented. For given boundary conditions, temperature distribution is calculated by employing a three-dimensional transient thermal finite element analysis. Thermal properties of concrete are assumed to be constant and independent of the stress-strain distribution. In the thermo-mechanical model for concrete the total strain tensor is decomposed into pure mechanical strain, free thermal strain and load induced thermal strain. The mechanical strain is calculated by using temperature dependent microplane model for concrete (O | ||
| Key Words | ||
| concrete; high temperature; 3D finite element analysis; microplane model; thermo-mechanical model; headed studs. | ||
| Address | ||
| Josko Ozbolt; Institute for Construction Materials Stuttgart, University of Stuttgart, 70550 Stuttgart, GermanyrnIvica Kozar; Faculty of Civil Engineering, University of Rijeka, 51000 Rijeka, CroatiarnRolf Eligehausen and Goran Periskic; Institute for Construction Materials Stuttgart, University of Stuttgart, 70550 Stuttgart, Germany | ||