Betonirunko

Betonirunko refers to a cast-in-place concrete structural system commonly used in building construction, particularly in Finland and other Nordic countries. The term translates directly from Finnish to "concrete frame" or "concrete skeleton." This construction method involves forming the building's load-bearing elements, such as columns, beams, and slabs, using poured concrete. The concrete is poured into temporary molds, known as formwork, which define the shape of the structural components. Once the concrete hardens and gains sufficient strength, the formwork is removed, leaving behind the solid concrete structure.

The betonirunko system offers several advantages. It provides excellent structural integrity, fire resistance, and thermal mass, contributing to a stable and energy-efficient building. The monolithic nature of cast-in-place concrete also allows for a high degree of design flexibility, enabling the creation of complex architectural forms. Furthermore, it can offer good sound insulation properties. The construction process typically involves skilled labor for setting up formwork and pouring concrete, with a curing period required before further construction can proceed. This method is often employed for apartment buildings, commercial structures, and other larger developments where durability and load-bearing capacity are paramount.