RU92444U1 - EXTERNAL REINFORCEMENT STRUCTURE OF THE COLUMN - Google Patents

Abstract

The external reinforcing structure of the column, which lost its bearing capacity with increasing operational loads and the presence of defects, was made by arranging metal clips of a removable U-shaped configuration, the halves of which are connected to each other as a whole by flanges, bolted together, characterized in that the cavities between the steel ferrule and damaged reinforced concrete column filled with fiber concrete.

Description

This utility model relates to the field of construction, in particular to an external reinforcing structure for a column, which provides the possibility of increasing the deformability of compressed elements. The utility model can be used to create structures for reinforcing elements with clips, in order to increase the bearing capacity with increasing operational loads, as well as in the presence of defects.

Of the known elements for reinforcing reinforced concrete columns, the closest are U-shaped metal trays, interconnected by means of flanges tightened by bolts. [Vladimir Teryanik, (RU), Lou Anton Valerievich (RU), Biryukov Alexander Yuryevich (RU). Column reinforcement. Russian Patent RU No. 67610].

However, such an external reinforcing structure has the following disadvantages:

- significant consumption of constituent materials (reinforcement, crushed stone, sand);

- long curing times.

The technical task of this utility model is to create an external reinforcing structure that eliminates the aforementioned disadvantages of the known reinforcing structures. The technical result of using the utility model is to provide the possibility of creating better adhesion and connection between the reinforcing structure and the column to be reinforced. We do not reinforce the length of the column, but only to the area that has direct damage. The reinforcement of columns having cracks in the damage zone is carried out by means of a removable U-shaped collar (2), which covers the damage on both sides by the size of the larger section of the column. A damaged reinforced concrete column (3) is enclosed inside a steel sleeve (2). Hermetically connect the two halves of the oval section into a single unit with the help of flanges (4), which are pulled together by bolts (5), and tightly fill the cavities between the steel cage (2) and the damaged reinforced concrete column (3), fiber-reinforced concrete (6), which is concrete reinforced with steel fiber with dimensions: diameter 0.2-1.0 mm, wave fiber length 12-20 mm, corrugation height 2.0-2.5 mm, length 8.0-10.0 mm.

In accordance with the utility model, the external reinforcing structure using steel fiber concrete has the following significant differences (we take the characteristics of ordinary concrete for 100%):

- increased wear resistance (200%)

- impact strength (1000%)

- tensile strength when shearing (150%)

- compressive strength (140%)

The drawing (figure 1) shows a General view and section 1-1 of a damaged reinforced concrete column (3), reinforced with a steel, removable U-shaped clip (2), the halves of which are connected to each other as a whole by flanges (4), tightened between with bolts (5). The cavities between the steel cage and the damaged reinforced concrete column are filled with fiber concrete (6).

The economic effect arose due to the following:

- reducing the complexity of reinforcing the structure.

- the possibility of multiple use of formwork when performing reinforcing columns.

- improved properties of fiber-reinforced concrete compared to expanding concrete.

Information sources:

1. Teryanik VV The choice of reinforced concrete column reinforcement method. Science is for production. M., 2004. No. 4 (72). - S. 65-67.

2. Teryanik Vladimir Vasilievich, (RU), Lou Anton Valerievich (RU), Biryukov Alexander Yuryevich (RU). Column reinforcement. Patent of Russia RU №67610

Claims (1)

The external reinforcing structure of the column, which lost its bearing capacity with increasing operational loads and the presence of defects, was made by arranging metal clips of a removable U-shaped configuration, the halves of which are connected to each other as a whole by flanges, bolted together, characterized in that the cavities between the steel ferrule and damaged reinforced concrete column filled with fiber concrete.