PROCEDURE DETERMINING CALCULATED SERVICE LIFE OF BUILDING OR STRUCTURE Russian patent published in 2003 - IPC

FIELD: erection of structures of special assignment, determination of service life of objects built in seismic-risky territory without antiseismic measures. SUBSTANCE: procedure determining calculated service life of building or structure consist in measurement of geometric parameters of damages indicated in it with the help of tape measure, slide calipers, protractor, plumb bob, geodetic level, theodolite with subsequent statistic processing of measurement results, in isolation of independent statistic series among them and in determination of degree of damage by most substantial indications from them with the aid of scale of macroseismic damages. Calculated service life of building or structure with established level of responsibility is assumed to be equal to specified service life if difference between specified service life and time during which practically significant seismic actions of calculated intensity in practically significant amount appears to be less than minimal practically significant term at assumed level of responsibility for which structural reliability and seismic safety of building or structure with decreasing operation term is secured. Index of mortality of people and animals and damage to valuable equipment caused by accidents arisen for calculated territory during calculated time period under conditions corresponding to conditions of forthcoming operation of calculated building or structure and established with guaranty corresponding to specified level of responsibility of building or structure by given dependence is taken in the capacity of minimally permissible level of seismic safety. EFFECT: enhanced authenticity of determination of calculated service life of object.