RU1791610C - Multistory earthquake-proof apartment house - Google Patents

Abstract

Usage: the construction of multi-storey earthquake-resistant buildings, providing increased seismic resistance. Summary of the invention: flexible cross-connections are fixed at one end to a base plate at the extreme supports, passed through rollers, a base plate and floors and fixed to the frame at the level of coverage. The base plate consoles are placed with a gap relative to the walls of the base trough-like plate, which are installed at a distance from the extreme supports. The energy absorbers are mounted in flexible cross connections over a portion of their length located between the base trough plate and the base plate. 1 ill.

Description

The invention relates to the field of construction, in particular to the construction of multi-storey earthquake-resistant buildings.

There are various designs of multi-storey earthquake-resistant buildings, in particular on movable supports 1, 2.

The disadvantage of such devices is their sharp frequency tuning, low efficiency and low stability,

The aim of the proposed solution is to create a multi-storey earthquake-resistant building with increased reliability.

The goal is achieved in that, in addition to the base plate, movable supports and the movable base plate located on the last movable base plate with the aboveground part of the building, a communication system is included that combines the movable parts of the building and the foundation plate so that the horizontal inertial (seismic) forces acting at ground level, used for proCO

with

This also applies to similar forces acting on the upper aerial part of the building.

The drawing shows a diagram of an earthquake-resistant building, consisting of a trough-like foundation plate 1, movable supports 2, a movable part of a building 3, consisting of a base plate and aerial parts, flexible connections 4, which are attached at one end to the bottom and the other end to the top the movable part of the building 3, the force changing unit 6 attached to the foundation plate 1, and the energy absorbers 5 included in the connections 4.

The proposed design works as follows,

A horizontal seismic push transmitted through the ground to the foundation of building 1 causes the building 3 to move along the movable supports 2 in the opposite direction to the seismic push. At the same time, building 3 experiences bending

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Os

about

(or shear) deformations in height, as well as additional compressive and tensile forces of the extreme columns of the building frame 3.

The presence of connection 4, restricting the horizontal movements of building 3 relative to the foundation 1, causes compressive forces in the stretched columns of the frame (i.e. compensates for this stretching), reduces (or eliminates) the bending moment of the building 3, thereby reducing the seismic load on the building and increases the earthquake resistance of building 3,

In order to avoid the destruction of bonds 4 due to high intensity seismic effects, energy absorbers (dampers) 5 can be added to the links 4.

The flexible connections 4, for example, cable ones, are fastened by hinging to special scarves, which are rigidly connected, for example, in the connection points of the crossbars and columns.

The distance from the extreme swinging supports of the building 3 to the walls of the foundation plate 1 must be not less than the height of the support.

The base plate of the building does not rest against the walls of the base plate; the resulting gap is supposed to be closed with a special dust seal.

The proposed design makes it possible to reduce the impact on the building

seismic loads, reduce horizontal deformations and increase the operational reliability and earthquake resistance of a building.

Claims (1)

SUMMARY OF THE INVENTION A multi-storey earthquake-resistant building, including a trough-like foundation slab, movable supports placed on its bottom at a distance from the walls, on which a support slab, a frame, an external fence, ceilings, a coating and energy absorbers are installed; e s, in order to increase 5 of the seismic resistance of the building, the base plate is equipped with rollers attached to it at the extreme supports, and the building is equipped with flexible cross-connections that are fixed at one end on the base plate at the extreme supports, passed through the rollers, the base plate and overlap at the opposite extreme supports and secured by the other end to the frame at the level of the coating, and the energy absorbers are installed in 5 connections on a part of their length, placed between the base and base plates, the last of which is made with consoles located with a gap relative to the upper face of the walls of the base 0 plates. ha cc