Predmet ovoga rada je linearna analiza dinamičkog sadejstava tla
i objekta pri zemljotresu, primenom metode konačnih elemenata (MKE).
Za rešenje odgovora rotaclono-simetričnog sistema je korišćena metoda
podstruktura. Dinamičke paramétré tla za krut kružni temeij fundiran
ria tlu iznad osnovne stene smo odr edili primenom MKE. Tlo je
idealizovano podelom na osno-simetriene konačne elemente uz primenu
graničnih uslova po silama koje omogućavaju transmisiju seizmiòkih
talasa iz zone temei ja u okolni slojevit, v iskoelast ičan poluprostor.
Dobijena rešenja su uporedena sa teorijskim. U okviru toga, detaljno
je analiziran problem odgovora sistema slojeva za talase u ravni,
upravno na ravan i u ci 1indričnim koordinatama. Za sva tri slucaja je
formulisana tzv. prenosna granica (transmitting boundary).
Na mode lu zgrade nuklearnog reaktora prikazani su neki aspekti
interakc i je tla i objekta primenom ekvivalentne metode i metode
koncentrisanih masa.A substructure method for earthquake analysis of soil-structure
interaction is presented. The procedure is applied to the analysis of
axisymmetr ic systems. Dynamic stiffness coefficients of rigid disk
resting on layer built in at its base, are determinated by a finite
element method. The transmitting boundary between the finite element
"core" region and viscoelastic soil layers of infinite horizontal
extent are superimposed. The core region is discretized by means of
axisymetric finite element. A series of parametric studies of dynamic
stiffness coefficients are presented. The substructure method is
applied to simplified nuclear containment structural model founded on
the "hard" and the "soft" layer. The interaction systems are analysed
by equivalent method and lumped mass method