РАСЧЁТ МНОГОЭТАЖНОГО ЗДАНИЯ НА ПРОГРЕССИРУЮЩЕЕ ОБРУШЕНИЕ ПРИ СЕЙСМИЧЕСКОМ ВОЗДЕЙСТВИИ

Abstract

The article provides an analysis of existing computational practices for solving the problems of survivability of structures of buildings and structures. The issues of progressive collapse of buildings under the influence of seismic loads are considered separately. It is noted that in order to ensure the reliability of the structures of buildings and structures under special impacts, it is necessary to have a clear regulation in the system of regulatory documentation of the Russian Federation. Most calculations for progressive collapse are made for frame buildings. In this paper, one of the approaches to solving the problem of survivability is proposed on the example of calculating a multi-storey building of a wall structural system for progressive collapse with a sequential failure of the most loaded walls of the first floor. The change in the stress-strain state of the building's load-bearing structures with successive failure of the walls of the first floor at each stage of the calculation is shown.