Basic concept of joists

Joists are elongated, rectangular structural elements that are primarily used in construction to support loads and distribute them to other load-bearing elements, such as beams and walls. They constitute essential components in floor, roof and floor systems, facilitating the transfer of vertical and horizontal loads effectively and safely.

Generally made of resistant materials such as reinforced concrete, steel or prestressed combinations, joists are designed to withstand different types of loads and environmental conditions. Their geometry, dimensions and type of material vary depending on the specific function and type of construction where they are used.

Prestressed concrete joists

Prestressed concrete joists are elements made by applying prestressing forces to the reinforcing steel before pouring the concrete. This technique significantly improves the load capacity and bending resistance of the joists, allowing greater spans and lower self-weight compared to conventional joists.

Its use is very common in the construction of slabs and slabs, especially in residential and commercial buildings. These joists allow quick installation and reduction in construction time, in addition to offering high durability against dynamic loads and adverse environmental conditions.

The manufacturing process is carried out in specialized plants where the quality of the concrete and prestressing is rigorously controlled, ensuring the uniformity and resistance of the final product.

steel joists

Steel joists are structural profiles made of rolled or welded steel, designed to withstand high loads and offer great ductility. They are frequently used in metal structures, bridges, industrial warehouses and high-rise buildings.

This type of joists stands out for its relative lightness compared to concrete, ease of assembly and possibility of prefabrication, which speeds up construction processes. Furthermore, they can adopt different geometric shapes, such as I, H or box profiles, adapting to the needs of the project.