Simulation of the Seismic Resistance of Buildings with Account of Unlimited Soil Space

The paper focuses on methods for dynamic analysis used in modern construction. The real object located in the Comintern district of Odessa region is taken as an example. When the earthquake loads are simulated, the authors use real accelerograms that were taken during the earthquake at the construction site of the object. For this construction site, several accelerograms were generated; they simulate 7 units of magnitude earthquakes from Vrancha zone and local focal zones. Analysis is carried out with obtained three-component accelerograms by the method of spectral analysis, and direct dynamic analysis was carried out. Described technique enables the user to simulate behaviour of the structural system of a building based on the finite elements developed and implemented in LIRA-SAPR program; these finite elements simulate vibration damping, to remedy the shortcomings of spectral and direct dynamic analyses. It also enables the user to solve physically nonlinear problems with soil and do not significantly increase the size, and respectively, time for analysis of the problem.