The Palace of Justice in Bucharest was built between the period 1890-1895, based on the plans drafted by the architects Albert Ballu and Ion Mincu. The complex dimensions exceed 130-140m longitudinally and 70-90m across. As a retrofitting solution, it has been chosen to completely renounce to the separation of building units through seismic joints, ensuring that the entire complex (macrostructure concept) spatially behaves as a whole, with the concentration of strengthening works in the inner courtyard through reinforced concrete plating thereof. High-capacity cores (tubeshaped) are thus formed, obtaining a stiffening of the building by means of a special rigid diaphragm.