The introduction of unique “concrete shell” structures in modern times is due to architects and engineers such as Eugène Freyssinet (1879-1962) and Bernardo Laffaielle (1900-1955), amongst others. It was they who developed innovative design and construction theories, which led to the realisation of remarkable double curvature structures. Far from traditional constructions, their spectacular profile began to stand out from their architectural surroundings. In these unique structures, made of curved concrete sheets, the architectural vision of the building is combined with its structural design.
Concrete shells are structural elements that resist high compressive loads, evenly distributed over their surface. However, they have low tensile strength and are not suitable for large concentrated loads. For this reason, they are mainly used in curved roofs, to whose design the forces of the weight of the components and the pressure exerted on them by the wind are applied.
These structural architectural forms give any project great uniqueness and character, making it stand out in the urban environment from an aesthetic and expressive point of view.
By Jean Carlos Soto, structural technician in Amusement Logic’s Architecture Dept.
