A statistical investigation to determine dominant frequency of layered soil profiles

Energy based seismic design getting attraction since it accounts for all structural (hysteretic behavior of members), earthquake (amplitude, duration and frequency content) soil (bearing capacity, characteristics. To develop an efficient energy procedure, accurate determination the fundamental periods deposits is crucial. Hence, several analytical, numerical approximate methods were suggested in literature to find out layered profiles. However, practitioners tend use simplest roughest methods, generally. In this particular research, a statistical study was performed best fit coefficient total travel time having minimum standard deviation. analyses, calculated 459 different profiles are compared with results almost exact analytical equations. Resultantly, equation generally preferred by improved. It proved that improved has higher accuracy lowest deviation correlation. Therefore, using determine period highly suggested.