Abstract
Slim-floor beams are a novel typology of steel beams where the steel profile is fully embedded within the concrete floor depth. Slim-floor beams are a well-known and cost-effective solution that permits a significant reduction of floor thickness, and are increasingly used in industrial and commercial buildings. While the use of this system is increasing in the construction practice, the available investigations on its thermal performance are still scarce. Therefore, this paper focuses on analyzing the fire behaviour of slim-floor beams with hollow-core slabs as a flooring system and improving its fire-resistance. A finite element model was developed through ANSYS 16.1 and the thermal performance of different type of composite beam configuration and steel plate thickness was studied by conducting transient thermal analysis. Also, structural analysis of the following models using these material sections for SFB were conducted and its structural behaviour was studied. The conclusions suggest that the thermal performance of SFB configuration can be improved by using innovative solutions, advanced materials or external protection.
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