MD2863C2 - Foundation of the earthquake resistant structure - Google Patents

Abstract

The invention relates to the field of foundation works, in particular to the constructions of foundations of the buildings, structures erected in conditions of seismic action.The foundation of the earthquake resistant structure includes two bearing elements: upper 2, in the form of sleeve and lower 1, in the form of sleeve with concave bottom of spherical shape, between which there is an intermediate element 5, made in the form of ball. Novelty consists in that the upper bearing element 2 is placed upside-down into the lower bearing element 1, at the same time the upper and lower bearing elements are joined between them with at least three spring elements 7, uniformly disposed round the circumference on a level. Into the upper bearing element 2 there is placed with clearance a bearing insert 3, in the lower part of which being made a semispherical recess and an axial channel 4, filled with lubricant, communicating with it. The intermediate bearing element 5, in the form of ball, is placed with clearance into the semispherical recess of the bearing insert 3 and is maintained with a ring 6, fixed in the lower part of the upper bearing element 2. Onto the lateral surface of the upper bearing element 2, in its upper part, there is mounted a guard ring 8, the width of which is greater than the width of the annular clearance between the walls of the upper and lower bearing elements.The result of the proposed invention consists in increasing the resistance of the structures to the action of vertical and horizontal vibrations and loads.