Investigation of the reaction of a complex unit of underground structures during earthquakes as a system with one degree of freedom

The main task of the deterministic analysis of the seismodynamics of a complex node of underground structures in this article is an attempt to determine the time-varying nature of the system's displacements under the action of seismic forces. In most cases, an approximate analysis, taking into account the limited degree of freedom, provides acceptable accuracy, and therefore the task is to analyze the temporal functions of changes in the selected components of the shifts.