METHOD OF DECREASING OF HORISONTAL INERTIAL LOAD OVER OBJECT ON SEISMOLOGICAL-ISOLATING KINEMATIC BASEMENT Russian patent published in 2008 - IPC E02D27/34 

FIELD: construction.

SUBSTANCE: invention pertains to construction, specifically to the methods decreasing horizontal inertial loads over buildings and constructions on seismological-isolating kinematical basements exposed to seismological and man-induced ground vibrations. Method of lowering of horizontal inertial load over the object on seismological isolating kinematic basement includes mutual horizontal displacement of the supporting bed plates at earthquake action of the earth and returning into initial position by horizontal reaction force equivalent to elastic restraint between the supporting and bed plates, proportional to the deviation at vibrations. Supporting plate deviates and returns into its initial position on the bases of the selected design parameters of elastic constraint and introduced stiffness ratio of horizontal equivalent elastic constraint between the supporting and bed plates and coefficient of rolling friction of supporting rolling bodies wherefrom rated value of deviation from the initial balance position of the supporting plate at vibrations according to the fundamental tone of free oscillations of the entire dynamic system with total weight G is selected, provided that received base frequency is within the range of 0.03÷14 Hertz, whereat required coefficient of rolling friction is determined from the quoted dependences.

EFFECT: lowering horizontal inertial load over the object on seismologic isolating kinematic basement reaching values of non seismic zones, reduction of consumption of materials for antiseismic objects protective measures.

2 dwg, 1 ex