THE INFLUENCE OF THE DESIGN OF THE FRAME FOUNDATION FOOTING ON THE SETTLEMENT AND BEARING CAPACITY OF SAND BASE

Problem statement. To develop methods for calculating and determining optimal forms and sizes of foundations, it is necessary to conduct experimental research of the mechamism of contact interaction of foundation with base, to determine their stress-strain state, and select influencing parameters.Results. The influence of design of slabby part of frame foundations used in buildings and constructions’ thrust systems, on the sand base’s bearing capacity under the action of a system of planar forces is determined experimentally. The graphs of dependence of settlement’s limit values, horizontal and total shifts on the inclination angle and the eccentricity of load application are given.Conclusions. Frame structures of foundations are much more efficient than commonly employed types of foundations, especially under high horizontal and momentary loads.