Mixed construction is a modern building method based on the cooperation of steel cross-sections (metal elements) and elements of reinforced concrete and it aims at making the best out of their properties for the benefit of the construction. The building method of a mixed construction made of a metal load bearing structure is also far superior to the classic prefabricated constructions. The flexibility of mixed constructions as regards the architectural elements that can be achieved and the anti-seismic properties provided thanks to its technological superiority cannot be encountered in classic prefabricated constructions.

Advantages

• It provides anti-seismic fortification. Pillars and beams are made of steel cross-sections that fortify the building against earthquakes.
• It guarantees stable and high construction specifications because the parts of the load bearing structure (metal beams – metal pillars) are products of industrial production.
• It provides freedom of architectural design. It allows the creation of large unified spaces with no pillars in between, which cannot be encountered in the classic prefabricated constructions that have a limitation in openings.
• It is advisable for the construction of multi-storey buildings without using oversized metal elements.
• It favors expansion in height, due to lower weight.
• It demands less delivery time (almost half of the time demanded for a conventional construction with a load bearing structure made of reinforced concrete).
• It allows for a reduced social security contribution (IKA) (50% less than the conventional one).
• It demands a lower foundation cost because of the smaller loads burdening it.
• This particular construction method is recommended throughout the world and also in Greece, especially in areas with intense seismic events, due to high durability in case of an earthquake.
• There is no transportation cost (in the case of mixed construction, the metal framework is made in the factory and it is built in the construction on the spot within a few hours).
• Reduction in excavations and in the total volume of the foundation due to the lower weight of the construction
• Easy rectification of damages
• Reduction of demolition cost (dismantling)
• Optimization of sound insulation and thermal insulation possibilities
• Maximization of the reliability and accuracy of the construction method, due to the industrial production of the basic building elements in a controlled environment with quality procedures