Interaction of foundations and bearing elements of a building with thawing subsoil

摘要

Herein the situation is considered when a thawing subsoil of the piled foundation of a frame building is accompanied by significant settlements of separate pilecaps, damaging steel frame elements of the superstructure and rendering the building potentially unsafe. Numerical simulation of the soil-structure complex was performed, where movements of the pilecaps were traced during freezing and thawing of the subsoil in the basement over the period of 36 months. Evolution of the bending moments in rigid connections of columns with beams of the steel frame was established.