SU1092248A1 - Foundation of building or structure - Google Patents

Abstract

FOUNDATION OF BUILDING, CONSTRUCTIONS, including a slab, made of composite elements, interconnected by concrete monolithing and tension reinforcement fixed to beams placed along the contour of the slab, characterized in that, in order to increase the reliability of the foundation, the lower and upper surfaces of each element the plates are made concave.

Description

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The invention relates to construction, namely to the foundations of a building, a structure.

The foundation of the building, the structure, is known, which includes a slab made of a composite of elements joined together by tight reinforcement 1.

Closest to the present invention is the foundation of a building, a structure comprising a slab made of a composite of elements interconnected by cementing monolith and tension reinforcement fixed to beams placed along the contour of slab 2.

However, the known foundations are characterized by insufficient rigidity and carrying capacity, which reduces the reliability of the foundations.

The purpose of the invention is to increase the reliability of the foundation.

This goal is achieved by the fact that in the foundation of a building, a structure comprising a slab made of composite elements interconnected by concrete monolithing and tensioned reinforcement fixed to beams placed along the contour of the slab, the lower and upper surfaces of each element of the slab are concave.

FIG. 1 shows the proposed foundation of a building, structure, plan; fig 2 is the same cross section; in fig. 3 - the same, longitudinal section.

The foundation of the building consists of a slab formed by elements 1 with loopback outlets 2. Elements 1 are interconnected by concrete 3 monolithing and tensioned reinforcement 4, located in the monolithic gaps 5 and fixed on beams 6 placed along the contour of the plate and forming a rigid contour 7 in the form of a frame. Moreover, the lower and upper surfaces of each element 1 of the plate are made concave, which ensures maximum use of the cross section of concrete for the effect of transverse forces.

The load from the building, the structure, applied to the support zones in the form of embedded gaps 5, is transmitted through the elements 1 to the base. The resulting thrust is perceived by the prestressed reinforcement 4 and the rigid contour 7 in the form of a frame.

In this case, the reactive pressure of the soil in the span of the foundation is perceived by elements 1 with a concave (in the soil direction) surface, for example, in

in the form of a vault, and transmitted to the supra-foundation structures of the building, the construction of elements 1 with a convex (in the ground direction) surface, for example, in the form of a vault.

 Improving the reliability and rigidity of the proposed basement for subsiding soils, which are undermined and karst-suffosion-prone processes, is achieved by looping

0 issues 2. elements 1, adjacent to each other; they are interconnected, for example, by bathing by welding, and the prestressed reinforcement 4 in the form of rods is passed through loopback outlets 2.

The work of the proposed basement at the base of the zone of subsidence, the area of which does not exceed the area of one element, should be considered when the zone of subsidence above the element

1 and under monolithic gaps 5.

0 In the first case, in the proposed foundation, there is a redistribution of efforts as in a spatial, statically indefinable, prestressed system. In this case, the element 1 perceives the horizontal component of the thrust, the corpus tor is transmitted from the beams 6 located along the perimeter of the slab.

When the drawdown zone is located under the monolithic gaps 5, the foundation works as a spatial pre-stressed system, the rigidity of which increases from the center of element 1 to the zones of the supra-foundation structures, in the form of monolithic gaps 5.

The installation and erection of the proposed foundation is carried out in the following order.

Elements 1 with loopbacks 2 are installed on the prepared base, which provide the design width of the gap 5 between elements 1.

Loopbacks 2 of the elements 1, adjacent to each other, are connected by a bath assembly. Between loopbacks

2, the prestressed reinforcement 4 is admitted. A rigid contour 7 is installed on which the reinforcement 4 is pre-tensioned, and then concrete work is being done to fill the gaps 5 between the elements i and to concreting the hard contour 7.

The use of the proposed foundation of the building, construction allows to increase

n the reliability of the foundation, the manufacturability of its manufacture and installation. . /

Claims (1)

BUILDING FOUNDATION, STRUCTURES, including a plate made of composite elements, interconnected by monolithic concrete and tensile reinforcement fixed on beams placed along the contour of the plate, characterized in that, in order to increase the reliability of the foundation, the lower and upper surfaces of each plate element made concave.