URBAN RESEARCHES FOR RISK MITIGATION IN BUCHAREST CITY AREA

The paper analyses the behaviour of the soil/subsoil characteristics in the Metropolis of Bucharest under seismic movements with the goal of highlighting the potential damage induced by future strong events. For better understanding the specificity of seismic effects from earthquakes originating in Vrancea region were carried out several national and international research works to assess seismic hazard for Bucharest. Will be presented the last results of the 21st century research programs, with a lot of practical results: several drills in the most critical zones of the city, with hundreds of samples on which were done dynamic tests, static ones and downhole measurements for v(p) and v(s) profiles. An analysis of the continuously recordings by accelerometers was done, over the Bucharest area. The paper emphasizes the importance of the accumulated data for understanding the dynamic behaviour of the soil under Bucharest and how it influences the impact of future seismic hazards. Better knowledge of seismic hazard will lead to mitigation of building vulnerability to future seismic movements.