<![CDATA[Serviceability performance is crucial for reinforced concrete (RC) structures to ensure durability, functionality, and user comfort. While existing research often focuses on individual components, integrated evaluations of complete slab-beam floor systems using practical finite element analysis (FEA) in accordance with Eurocode 2 remain limited. This study evaluates the short-term and long-term serviceability performance of a typical RC floor system (top/bottom slabs, main/secondary beams) under service loads. A 3D finite element model was developed using SAFE software, with crack-width and deflection verifications conducted in accordance with Eurocode 2 (EN 1992-1-1) and Eurocode 0 (EN 1990). The numerical results confirm that all structural components satisfy the prescribed serviceability limits: Maximum Crack Width, measured at 0.085 mm for the main beam and below 0.22 mm for the slabs, both well within the 0.30 mm allowable limit. Maximum Long-Term Deflection: Reached 27.6 mm for the main beam, remaining below the 34.0 mm allowable limit. The FEA successfully captured realistic slab-beam interactions and internal force redistributions, providing structural engineers with practical, code-compliant guidance. Keywords: Reinforced Concrete; Serviceability Limit State; Crack Width; Deflection; Eurocode 2; FEM.]]>
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