Using probabilistic methods, the reliability and seismic resistance of a large-panel building on kinematic foundations (KF) at the seismic isolation site in Almaty is analyzed. The building is modeled by a nonlinear single-mass system with an experimental deformation diagram. Seismic impact is modeled by a random process with a given correlation function. To calculate probabilistic characteristics, the method of statistical tests is used (Monte-Carlo method). The seismic impact parameters are set in accordance with the “Map of the seismic zoning of the Republic of Kazakhstan” by the median values of peak accelerations. 2 accelerograms of the 1990 Baysorun earthquake were chosen as the impact model. Therefore, these accelerograms were taken as the basis for modeling the seismic effects of a random process. Generation of realizations of a stationary random process is performed by recursive filtering. The influence of the number of statistical tests (artificial accelerograms) on the accuracy of calculating the moments of the distribution function of displacements was investigated. According to the results of a Monte Carlo calculation using 5000 realizations, the reliability of the building is determined (probability of failure-free operation). Conclusions about system effectiveness of seismoisolation of kinematic type for the influence specified like buildings at regional parameters are drawn.

A special testing ground is used to study the seismic insulating properties of buildings in Almaty. It includes buildings with conventional tape foundations with a cross-tape system, seismic-insulating kinematic and supports with fluoroplastic gaskets. The buildings are equipped with engineering-seismometric service stations (stations 20,21,22). The results of experimental studies of the house on fluoroplastic gaskets, performed in the late 80s, are analyzed. The results are compared with instrumental records during the earthquakes of May 31, 2012 and August 16, 2014. The period of the maximum of the spectrum coincides with the resonance at the initial stages of vibration tests 0.44-0.47 sec. Using a single-mass calculation scheme, taking into account the presence of dry friction forces, the calculation of the dynamic model of the building on the impact of an unsteady random process is performed. The median acceleration values at the base correspond to the data of the “Seismic Zoning Map of the Republic of Kazakhstan” for earthquakes with a recurrence of 475 years and 2475 years. Probabilistic estimates of displacement values at the support level are obtained.