Vulnerabilidad sísmica del sistema estructural prefabricado gran panel Soviético en edificios deteriorados y transformados

Building U-142-143 is chosen for this analysis, mainly because it has critical operating conditions. It is concluded that, although the prefabricated system does not comply with all the current requirements of earthquake resistant design and present significant irregularities in plan and elevation, the building analyzed according to the formulations in the codes used, can retain rigidity in the face of seismic action. A comparison between the building according to the original project and the current variant corroborates that the greatest changes are observed in the fundamental periods. Consequently there are variations in drift, displacement and stiffness.