RU114701U1 - DESIGN FOR STRENGTHENING THE BUILDING WITH ITS RECONSTRUCTION - Google Patents

Abstract

A structure for strengthening the building during its reconstruction, including additional rigid supporting structures to absorb the loads from the reconstructed building, characterized in that the additional rigid supporting structures are made in the form of monolithic reinforced concrete stiffening cores installed inside the building to absorb the load from the supporting elements of the building, while the core stiffnesses are made with a height equal to the sum of H1 and H2, and their number is determined:! ,! where N is the number of stiffness cores; ! L is the length of the building, m; ! Н1 - depth at which stiffening cores are installed, m; ! Н2 is the height of the stiffness cores inside the building, m; ! Sм - area of the column grid module, m2.

Description

The design for reinforcing buildings during its reconstruction relates to construction and can be used in the reconstruction of buildings and structures.

A known construction for reinforcing a building during its reconstruction, including additional rigid load-bearing structures for absorbing loads from a reconstructed building (see, for example, patent RU 2274718, class E04G 23/00, published on 04/20/2006).

A disadvantage of the known design is that it is erected around the perimeter of the structure and does not perceive the destructive loads that occur inside the building itself.

The utility model is based on the task of redistributing the loads arising inside the building itself from damaged elements to erected stiffness cores, increasing the building's stability and seismic resistance, optimizing material costs during reconstruction of the building in any weather conditions, and shortening the production shutdown period during reconstruction.

The problem is solved in that in the structure for reinforcing the building during its reconstruction, including additional rigid load-bearing structures for absorbing loads from the reconstructed building, monolithic reinforced concrete stiffening cores are installed that are installed inside the building to absorb the load from the building's building elements, while the stiffness cores are made in height equal to the sum of H ₁ and H ₂ , and their number is determined:

Where

N is the number of stiffness cores;

L is the length of the building (m);

H ₁ - the depth at which the stiffness cores are installed (m);

H ₂ - the height of the stiffness cores inside the building (m);

S _M - the area of the module grid of columns (m ² ).

Since additional rigid structures are made in the form of monolithic reinforced concrete stiffness cores installed inside the building to absorb the load from the load-bearing elements of the building, the stiffness cores are made of a height equal to the sum of H ₁ and H ₂ , and their number is determined redistribution of the load from damaged elements to the constructed stiffness cores is ensured, the building's stability and seismic resistance are increased, material costs for building reconstruction are optimized in any weather conditions, and the production shutdown period during reconstruction is reduced.

Figure 1 shows a top view of a building with arranged stiffness cores; in Fig.2 a section of Fig.1 is a side view; figure 3 section of figure 1 in a perspective view.

The structure for reinforcing the building during its reconstruction contains monolithic reinforced concrete cores of rigidity 1 on a separately constructed wall in soil foundation 2 at a depth of H ₂ , perceiving the redistributed load from damaged crossbars 3 and columns 4 in nodes 5 at the level of floor floors.

The reconstruction of the building is as follows.

During technical and engineering-geological surveys, the bearing capacity, physical deterioration of existing structural elements of the building, the geological structure of the base soils and their bearing capacity are determined. Then they give recommendations for reconstruction or restoration. According to the recommendations, we determine the location of the stiffness cores 1 in the most damaged or weakened areas of the building. The number of hardness cores 1 is determined by the formula with the known length of the building L, the height of the building H ₂ and the area of the module of the grid of columns 4 of the frame S _M. The depth H ₁ at which the stiffness cores 1 are installed is carried out to the ground, the support reaction of which is not less than the total calculated load from the building. Then, using the wall method in the ground, a foundation 2 is made to a depth of H ₁ . A monolithic stiffness core 1 is erected around the perimeter of the column grid module 4 from the lower floors to the upper to the height of the building N ₂ . At the level of interfloor ceilings, releases and / or embedded parts in the form of nodes are performed 5. The prepared joints of existing structures are cleaned. As the strength of the monolithic core of rigidity 1 gains strength, the release of reinforcing bars and embedded parts of the adjunction nodes 5 with the load-bearing structures of the building in the form of crossbars 3 and columns 4 are monochromatic and welded.

Since the stiffness cores 1 are located inside the building under reconstruction, they absorb the load from the damaged frame elements: crossbars 3 and columns 4. The foundations of 2 stiffness cores 1, based on reliable soil, whose support reaction is not less than the total design load from the building, increase the stability and seismic resistance of the reconstructed building. The arrangement of stiffness cores 1 inside the building optimizes material costs during reconstruction in any weather conditions and shortens the production shutdown period.

Claims (1)

A structure for reinforcing a building during its reconstruction, including additional rigid load-bearing structures for absorbing loads from the building being reconstructed, characterized in that the additional rigid load-bearing structures are made in the form of monolithic reinforced concrete stiffness cores installed inside the building to absorb the load from the load-bearing elements of the building, while stiffnesses are made with a height equal to the sum of H ₁ and H ₂ , and their number is determined:

, where N is the number of stiffness cores; L is the length of the building, m; H ₁ - the depth at which the stiffness cores are installed, m; H ₂ - the height of the stiffness cores inside the building, m; S _m - the module area of the grid of columns, m ² .