Buildings Stability Revaluation in Seismically Active Regions

In 2015 the maps of seismic zoning on the territory of Russia were detailed according to new general standards (ОSR-2015). Compared to the previous data, the number of seismically dangerous areas has the tendency to increase. Most buildings in those areas of the country were designed and constructed as less earthquake resistant. The physical and mechanical characteristics of the soil in the buildings foundation are being changed under the influence of different ecological, engineering, geological, and man-made factors. The latest research discovers the high level of soil influence on seismic resistance of buildings. Further detailed examination of earthquake resistance of buildings in the northern territories of Russia has been planned according to the changes and influences mentioned above in order to lower the earthquake risks