Fire Design Equation for Steel–Polymer Composite Floors in Thermal Fields Via Finite Element Analysis
Abstract
:1. Introduction
2. Verification of Analysis Model
2.1. Thermal Behavior Analytical Model
2.2. Full-Scale Fire Tests
2.3. Validation for Full-Scale Fire Tests
3. Full-Scale Analysis Model for Fire Design
3.1. Modeling for Full-Scale Test
3.2. Variables of Analysis Models
4. Fire Design Equation in Thermal Field
4.1. Analysis Results
4.2. Fire Design Equation in Thermal Field
5. Conclusions
- (1)
- A reliable thermal-contact conductance-based thermal behavior analytical model, which was used in a previous study to estimate the temperature distribution of steel–polymer composite floors, was applied to a full-scale fire test of specimens to predict temperatures on unexposed surfaces. By comparing the test and analysis results obtained by the thermal behavior analytical model, the proposed analytical model is validated for applying full-scale fire tests.
- (2)
- Based on the analysis results with various variables, such as the thickness of top and bottom steel plates and polymers, a database was obtained for applying the finite element model to the investigation of fire resistance in the structural field. Evaluating the fire resistance performance in a thermal field is a prerequisite for determining the element temperatures that influence mechanical properties depending on elevated temperatures.
- (3)
- By investigating the correlation between various variables and the fire resistance of the composite floors in the thermal field, the insulation performance can be presented using simple equations. The proposed equations are defined based on the thickness of the top and bottom steel plates and polymers. Using the specific ranges of 5 mm ≤ dts ≤ 20 mm, 20 mm ≤ dp ≤ 60 mm, and 5 mm ≤ dbs ≤ 20 mm, the equations are written as follows:
Author Contributions
Funding
Conflicts of Interest
References
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Park, M.J.; Bae, J.; Ryu, J.; Ju, Y.K. Fire Design Equation for Steel–Polymer Composite Floors in Thermal Fields Via Finite Element Analysis. Materials 2020, 13, 5573. https://doi.org/10.3390/ma13235573
Park MJ, Bae J, Ryu J, Ju YK. Fire Design Equation for Steel–Polymer Composite Floors in Thermal Fields Via Finite Element Analysis. Materials. 2020; 13(23):5573. https://doi.org/10.3390/ma13235573
Chicago/Turabian StylePark, Min Jae, Jaehoon Bae, Jaeho Ryu, and Young K. Ju. 2020. "Fire Design Equation for Steel–Polymer Composite Floors in Thermal Fields Via Finite Element Analysis" Materials 13, no. 23: 5573. https://doi.org/10.3390/ma13235573