CN207003828U - A kind of reinforced column prefabricated component - Google Patents

Abstract

The utility model discloses a reinforced concrete column prefabricated part, which comprises a concrete column, four edges of the concrete column are wrapped with angle steel, and steel strands are wound around the angle steel and the outer side of the concrete column. Through the above method, the stiffness and bearing capacity of the component can be effectively improved, and the damage ductility of the component in the later stage is also greatly improved, and the manufacturing process of the prefabricated part is simple and the cost is low, which solves the problem that the existing concrete column has poor bearing capacity and is easy to crack. question.

Description

A prefabricated reinforced concrete column

technical field

The utility model belongs to the technical field of construction engineering appliances and relates to a reinforced concrete column prefabricated part.

Background technique

The prefabricated structure can overcome the disadvantages of long construction period, low production efficiency, and low engineering quality and safety of traditional houses. It is an environmentally friendly, energy-saving, and efficient production method. Their frame beams and columns exist in the form of prefabricated components, and then design and construct the joints and joints between the various load-bearing components according to the requirements of the cast-in-place structure. A prefabricated concrete frame structure consists of several prefabricated parts: prefabricated beams, prefabricated columns, prefabricated stairs, etc. It has a clear structural force transmission path, high assembly efficiency, and less on-site wetting work, which fully meets the requirements of prefabricated and assembled structures, and is also the most suitable structural form.

But at the same time, there are a series of development bottlenecks in the prefabricated structure. The product form of components and parts is single, which is relatively backward compared with developed countries. The level of mechanization and industrialization is low, and the components produced are far from the specified quality standards. In addition, compared with traditional buildings, the production cost is higher.

Utility model content

The purpose of the utility model is to provide a reinforced concrete column prefabricated part, which solves the problem that the existing concrete column has poor bearing capacity and is easy to crack.

The technical solution adopted in the utility model is,

A reinforced concrete column prefabricated part comprises a concrete column, four edges of which are wrapped with angle steel, and steel strands are wound around the angle steel and the outer side of the concrete column.

The utility model is also characterized in that,

The outer surface of the concrete column on the same side and the outer surface of the angle steel are in the same plane;

The steel strand is wound horizontally on the surface of the concrete column;

Both ends of each horizontally wound steel strand are tightened and fixed by U-shaped buckles;

One end of the concrete column is made into a tenon;

A hole is reserved at one end of the concrete column, and the reserved diameter is greater than twice the diameter of the steel bar.

The beneficial effect of the utility model is that a reinforced concrete column prefabricated part can effectively improve the stiffness and bearing capacity of the component, and greatly improve the post-damaged ductility of the component, and the prefabricated part has a simple manufacturing process and low cost.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of a reinforced concrete column prefabricated part of the present invention.

In the figure, 1. Reinforced concrete column, 2. Angle steel, 3. Steel strand.

detailed description

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1, a prefabricated part of a reinforced concrete column includes a concrete column 1, four edges of the concrete column 1 are wrapped with angle steel 2, and on the same side, the outer surface of the concrete column 1 and the outer surface of the angle steel 2 are in the same plane. The steel strand 3 is wound on the outside of the angle steel 2 and the concrete column 1, and the steel strand 3 is horizontally wound on the surface of the concrete column 1, and both ends of each horizontally wound steel strand 3 are tightened and fixed by U-shaped buckles; the concrete column One end of the concrete column is made into a tenon or a hole is reserved at one end of the concrete column, and the reserved diameter is greater than twice the diameter of the steel bar.

The ultimate load and ultimate strength that a reinforced concrete column prefabricated part of the utility model can bear and ordinary concrete columns are compared, as shown in Table 1 below.

Table 1

It can be seen from the above table that the ultimate load and ultimate strength that ordinary reinforced concrete columns can bear are smaller than those of the utility model, and for the utility model, the greater the pre-tightening force, the greater the strength of the prefabricated parts. The greater the ultimate load and ultimate strength.

For the connection of reinforced concrete columns and reinforced concrete columns to concrete columns, the specific steps are as follows:

Method 1. Mortise and tenon connection

The tenon is located on the top of the lower column during installation. Weld the steel bars protruding from the upper and lower columns to each other, add stirrups, and pour concrete after the formwork is set up, so that the upper and lower columns are connected as a whole.

Method 2. Slurry anchor connection

One end of the prefabricated column protrudes from the steel bar, and a corresponding hole is reserved at the other end. When installing, protrude steel bars into the reserved holes, and then anchor with mortar.

Method 3. Welding connection

During installation, the longitudinal steel bars protruding from the upper and lower columns are welded on the welding cap (welded by steel plates or angle steels), and the upper and lower columns are butt-jointed and then welded with steel plates to connect the upper and lower columns together.

Through the above method, the stiffness and bearing capacity of the component can be effectively improved, and the damage ductility of the component in the later stage is also greatly improved, and the manufacturing process of the prefabricated part is simple and the cost is low, which solves the problem that the existing concrete column has poor bearing capacity and is easy to crack. question.

Claims (6)

1. A reinforced concrete column prefabricated part, is characterized in that, comprises concrete column (1), is wrapped with angle steel (2) on four edges of concrete column (1), and angle steel (2) is wound with concrete column (1) outside Steel strand (3). 2. A reinforced concrete column prefabricated part according to claim 1, characterized in that, on the same side, the outer surface of the concrete column (1) and the outer surface of the angle steel (2) are in the same plane. 3. A reinforced concrete column prefabricated part according to claim 1, characterized in that the steel strand (3) is horizontally wound on the surface of the concrete column (1). 4. A reinforced concrete column prefabricated part as claimed in claim 1, characterized in that, both ends of each horizontally wound steel strand (3) are tightened and fixed by U-shaped buckles. 5. A reinforced concrete column prefabricated part according to claim 1, characterized in that one end of the concrete column (1) is made into a tenon. 6. A reinforced concrete column prefabricated part according to claim 1, characterized in that a hole is reserved at one end of the concrete column (1), and the reserved diameter is greater than twice the diameter of the steel bar.