ABSTRACT
Concrete was known since the antiquity, and it has been used in the Pantheon. The ruins of Ostia Romanian tell us this story, the story of construction techniques (as opus crataecicum). Reinforced concrete is not seen as a historic building material by many researchers, unlike masonry. Therefore, we want to contribute to increased knowledge on this topic and thus the study of reinforced concrete buildings of pre-seismic code in the interwar period, not just post-war, which is the focus of research, is important. We investigated the involvement of architecture in the interwar period of study as well as the intervention and / or preservation of historical architecture of reinforced concrete. Reinforced concrete has enjoyed uneven spread in Europe. Thus in Germany, although there was some experience with concrete, steel enjoyed widespread because there were resources. Reinforced concrete was more popular where there weren`t so many industrial resources. Many buildings in Germany of the interwar time have steel structure, such as those of Otto Hassler of Karlsruhe and Celle or those of Mies van der Rohe in Stuttgart. In the "Weisse Vernunft" interactive CD ROM of the University of Art and Design in Karlsruhe (1999), innovative techniques in construction with reinforced concrete and steel and glass in the interwar period in Germany are documented. Discussed is the relationship of reinforced concrete - steel structure, and the relationship with the metal structure that was typical in Germany, where we could tell that there was a local culture of such a type of structure. Later we see the relationship between structures in reinforced concrete frames (or metal) of the first half of the twentieth century and traditional timber frame construction. A pioneer in reinforced concrete construction was Auguste Perret and his contribution is significant as the French model of the building typology of multi storey blocks of flats was raised in Romania, with withdrawals at higher levels, etc.
