NALYSIS OF SEISMIC OSCILLATIONS OF SUBMERGED STRUCTURES, ACCOUNTING FOR A TRANSVERSALLY-ISOTROPIC FOUNDATION
The paper describes a numerical methodology for analyzing the behavior of submerged structures and the adjoining pipelines loaded by seismic oscillations, accounting for nonlinear effects of contact interaction with the ground foundation and the gravity field. The effectiveness of the stationing procedure for determining the initial stressed-strained state of the building-ground system from the gravity field is shown. Use of the transversally-isotropic model of the ground makes it possible to numerically model large-scale seismic problems for soft foundations.