Abstract
The purpose of this work is to study the issues of stability of multi-storey buildings and structures located on weak soils. Various kinematic models of the loss of stability of the soil base and the development of progressive destruction are considered. In the analysis of the loss of stability, linear elastic models of the building and the foundation are adopted. The problems of loss of stability and collapse of high-rise buildings located on weak soils are numerically investigated. The problem is solved in a nonlinear formulation using a bilinear model of the soil base. From the standpoint of structural mechanics, the critical state of the «ground foundation – structure» system is considered as an indifferent state. The reasons that create prerequisites for the development of various deformation mechanisms and measures that can prevent the occurrence of emergency situations are discussed