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- Title
Modeling the response of precast, prestressed concrete hollow-core slabs exposed to fire.
- Authors
Kodur, Venkatesh K. R.; Shakya, Anuj M.
- Abstract
This paper presents the development of a threedimensional finite element model for evaluating fire performance of precast concrete hollow-core slabs. A transient thermo-structural, nonlinear finite element analysis of hollow-core slab was conducted using finite element analysis software. In the analysis, the effects of material and geometric nonlinearities, high-temperature properties of concrete, reinforcing bars, and prestressing strand were taken into account. Response parameters, including cross-sectional temperature and deflections, were used to evaluate failure of the slab. The model was validated by comparing response predictions from the model with fire test data. Good agreement between model predictions and test data indicates that the proposed model is capable of predicting fire performance of hollow-core slabs under the combined effects of fire and structural loading.
- Subjects
FIRE resistance of building materials; PRECAST concrete construction; FINITE element method; REINFORCING bar testing; FIRE testing of concrete; PRESTRESSED concrete testing
- Publication
PCI Journal, 2014, Vol 59, Issue 3, p78
- ISSN
0887-9672
- Publication type
Article
- DOI
10.15554/pcij.06012014.78.94