Ortometaalattia

Orto-metaalattia, also known as a composite floor slab, is a building construction element. It typically consists of a steel decking profile that serves as both a formwork and a permanent reinforcement for concrete. The steel profile is usually corrugated, providing a strong bond with the poured concrete. After the concrete has hardened, the steel decking and the concrete form a single, monolithic structural unit.

This type of flooring is commonly used in multi-story buildings, especially in commercial and industrial structures, due to its efficiency and speed of construction. The steel decking can be erected quickly, and concrete can be poured immediately, reducing overall project timelines compared to traditional formwork systems. The composite action of the steel and concrete allows for thinner slabs and longer spans, leading to more efficient use of materials and potentially larger, more open floor spaces.

The design of an orto-metaalattia involves considering the load-bearing capacity of the steel profile, the strength of the concrete, and the interaction between the two materials. Shear connectors, such as studs welded to the steel decking, are often employed to ensure a robust composite action, preventing slippage between the steel and concrete layers under load. This system offers good structural performance, fire resistance (depending on the concrete thickness and reinforcement), and acoustic properties.