Embedded details as obligatory elements of modern construction. The use of embedded parts in construction Classification of embedded elements

Embedded parts are metal elements that are placed in buildings and structures before concreting. As a result, they perform the functions of a coupler or connecting elements, ensuring the integrity and reliability of the resulting structure.

Embedded parts classification

Embedded parts are of two different types:

• open;
• closed.

The classification of these elements can also be made according to the principle of placing anchor parts in relation to a flat element.

On this basis, embedded parts are distinguished with an inclined, perpendicular, mixed or parallel position of the rods. Separately, elements are distinguished, on the rods of which there is a thread.

Embedded parts are made from different types of steel:

• channel and corner,
• striped and round.

These elements are used in the process of installation of various structures and buildings.

Their main function is to connect the most important structural elements. Usually the use is planned in advance, and only then they are mounted by welding or bolting.

Using Embedded Parts

Embedded parts are various metal products installed in a monolithic metal frame structure. It is thanks to them that the building acquires a strapping of reinforcing meshes, channels and beams, as a result of which it becomes more stable and durable.

Thus, the main areas of use of embedded parts are repair and construction works. Metal elements are usually manufactured according to standard forms (standard designations on the drawings: ZD-1, ZD-2, MS-1, MS-2, MN-1, MN-2), but customer requirements are taken into account, and, accordingly, the dimensions and shapes may vary.

Production of anchor bolts

Embedded parts are often represented by anchor bolts. They are often used for laying in reinforced concrete foundations in order to further fix various equipment on the foundation or.

The production of anchor bolts is carried out in accordance with the state requirements set forth in GOST 24379.1-80 (for models with a thread diameter of M12-M140). If the use of parts is planned in the northern regions with a cold climate, then they are made from frost-resistant steel 09G2S.

Sometimes the project indicates the need to use a foundation bolt, which is made from steel of the 08G2S type. In this case, only a hairpin is machined from the specified material, and the remaining elements are made from st3-st20 (in accordance with the requirements of GOST 24379.1-80).

At your request, after the production of bolts, additional procedures can be carried out, for example, hot or cold galvanizing.

Another popular type of embedded parts is anchor foundation blocks. These elements are foundation bolts (according to GOST 24379.1-80), which are interconnected by means of high-quality metal.

It is especially important that the center distances are correctly maintained.

Also, the composition of the foundation blocks includes similar ones:

• bolts,
• corners,
• hairpins,
• circle,
• rebar,
• sheet,
• band,
• profile pipes.

A large selection of embedded parts is presented in the assortment of the North-Western Steel Structures Plant. Reliability guaranteed!

The term "embedded elements" is increasingly used in Everyday life. Small metal plates, connected by welding to an anchor or reinforcement, help to firmly connect reinforced concrete structures to each other, to ensure high-quality fastening of reinforced concrete structures with metal parts.

This allows you to increase the overall strength, simplifies the creation of structures. Most often, the laying of parts is carried out during manufacture. reinforced concrete structures. In this case, the element is positioned in such a way that the plate is in the concrete, and the reinforcement or anchor remains outside. It is thanks to the presence of the fastener that an excellent connection between the reinforced concrete structures is achieved, which is often carried out by welding. Thus, embedded elements enhance the strength of the prefabricated structure, help to rigidly fix its individual parts, significantly increase the reliability and durability of the structure. You can order embedded parts on the page http://xn--37-7lcu.xn--p1ai/metalloprokat?code=00000000113000000000 .

Areas of use of embedded elements

The main scope of embedded parts is monolithic construction. At the same time, any structure in which it is required to connect reinforced concrete structures to each other, as well as to metal components, is unthinkable without the use of embedded elements. Here are the main areas of application of such products:

construction of block structures such as canals, wells, tunnels;

installation of enclosing, load-bearing structures based on reinforced concrete products;

creation of external facades;

construction of foundations for the construction of buildings based on metal frames;

installation of hydrotechnical facilities, including reservoirs, technical reservoirs.

Assortment of embedded parts

All embedded elements have two components - a plate and a fastener. However, the plates can be made of different alloys, vary in metal thickness, configuration. The type and number of anchors can also vary within fairly wide limits. Fastener can be made of round, as well as profile fittings of different sections. In some cases, the anchor can be equipped with a thread that allows you to adjust the connection.

Embedded elements can be open as well as closed type. The first option assumes the presence of one plate and one anchor. In the second case, two plates are located at both ends of the fastener.

To provide embedded parts with a longer service life and additional resistance to corrosion, manufacturers use a variety of coatings, such as galvanization.

The manufacturing technology of embedded elements can be quite complex, despite the external simplicity of the product. For the production of such products, high-quality rolled metal of a given thickness is selected. Cutting is made in accordance with the shape of the plate, which can be a rhombus, trapezoid, rectangle or square. After that, the edges of the products are carefully processed, fasteners are welded. Finished parts are primed, coated with paint or galvanized.

At the stage of pouring reinforced concrete structures, most of them require an embedded part, fully or partially sunk into concrete. These elements are joined (welding, threaded connections) separate parts of the prefabricated foundation or attach flights of stairs to it, Wall panels, ceilings, other enclosing structures.

What are mortgages for?

The foundations are made of concrete, it is very difficult to dock, attach two such products. Therefore, an embedded part is immersed in concrete, a thread, plate, and other seat remain on the surface. It is enough to weld these elements to each other in order to obtain complex spatial structures made of reinforced concrete. Mortgages are used for construction:

For the manufacture of mortgages, almost the entire range of rolled metal is used (circle, sheet, reinforcement, strip, channel, angle, bar).

Classification of embedded elements

To increase the strength, concrete structures are reinforced with wire meshes, rods of a periodic, constant section. These elements also apply to embedded parts of a closed type. The classification is based on:

Any embedded part must comply with GOST 10922-90, since they have a significant load. An anchor rod or reinforcement A-III - A-II class 25 - 8 mm in diameter is used for the foundation. If the temperature in the region of operation drops below 30 degrees, choose plates from VSt3ps6 steels. In other cases, VSt3kp2 steel is used.

Anti-corrosion treatment consists of galvanizing, galvanizing, painting. At small loads, stamped APs are usually laid in reinforced concrete products. With an increase in shearing, tearing forces, anchor rods welded to the plates are used.

Mortgage manufacturing technology

When designing metal elements inside the foundation, it is necessary to take into account the nuances:

Embedded part of a stamped type is made in accordance with the RS9903 album, developed by the leading designers of reinforced concrete: NIIZhB, MNIITEP. The sketches in the album allow you to use ready-made schemes the minimum possible reinforcement in the area of ​​​​the location of the ZD.

The project should include the minimum possible sections of profiled steel, reinforcement. To do this, part of the effort is distributed to stops made of strip steel or short bars.

Welded joints

To increase the adhesion of stamped EPs inside the concrete parts of the foundation, 6 cm hooks with two or more ledges are created at the ends of the strips. The rods are connected to plates, shaped rolled products by welding in accordance with the requirements of GOST 19292:

• tee weld - manual or automatic submerged arc (in some cases zigzag, relief welding), roller welds, contact-embossed, semi-automatic in carbon dioxide environment
• inclined seam (joint) - submerged directly or at the end
• overlap joint - an extended seam, along two, one relief (manual arc, contact, respectively)

Relief spot welding is prohibited for APs used in concrete products experiencing vibration loads during operation (for example, flights of stairs).

Installation sites, application of embedded elements

The main operations for the construction of the foundation, other enclosing structures are:

For individual developers, the industry produces a range of embedded elements for a monolithic foundation. The simplest modification of the anchor for fastening wooden rack has the structure:

Mortgages for fastening gates, gates to fence posts are made independently:

• plate - used for hanging sections, wicket hinges
• corner - connects the plate with profile pipe pillar armored belt

Home-made embedded elements are usually not calculated, they are made from improvised materials, immersed in concrete without connection with the armored belt of structures. Most often, an individual developer uses mortgages in the following operations:

For more serious reinforced concrete structures, buildings, it is necessary to purchase factory products with embedded parts. All of them undergo flaw detection, laboratory tests for permissible loads, have accompanying documentation, and manufacturer's warranty obligations.

During installation various systems pipelines and various connections are used by builders embedded part. In order to make embedded parts in Tula, various steels are used. The production of such parts involves the use of sheet, strip steel, as well as reinforcement. These products can be of various shapes. An embedded part is a necessary element in monolithic construction.

Varieties of embedded parts.

1. Open embedded part
This type of product is closed with a plate on one side only. This design is necessary for production purposes.
2. Closed embedded part

In the manufacture of a closed embedded part, two closing plates are used.
In any case, embedded parts must have increased strength and resistance to corrosion. For the latter purpose, each part is coated with a special composition during production - galvanizing. Embedded parts with this coating long time can withstand external factors.

Mounting method may vary. Parts can be welded by welding or embedded in a reinforced concrete structure.

The designation MH indicates that such items are metallic and cannot be recovered.

Embedded parts play a very important role in construction. These products determine how durable the finished structure will be.

Products are supplied to the construction market in finished form. It is also possible to make these parts to order. Modern production suggests the possibility of using buyers' drawings for such purposes.

With proper installation, you can guarantee a long service life of this product. The quality of the product also depends on the class of steel from which it was made. embedded detail.

Also read:

Embedded parts are called used in different designs metal elements. Products of this type have a wide scope, but most often they are used in construction, especially at the stage of installation of reinforced concrete structures. Embedded parts are manufactured using high-strength steel grades.

Examples of embedded parts

Embedded part with one anchor	Embedded part "unifork" with corner anchors
Embedded part type "table" with parallel normal anchors	Embedded part with four parallel anchors
Embedded part type "double table" with two flat plates and normal anchors	Embedded part with one normal anchor
Embedded part	Embedded part
Embedded part	Embedded part

Where are these parts used?

Without them, it is impossible to build a number of structures, both monolithic and prefabricated reinforced concrete. Embedded parts are used in the construction of administrative buildings, workshops for industrial enterprises and similar civil-type buildings. They are used when working with stadiums and agricultural facilities.

Embedded elements are used in the following types of work:

• creation and installation of facade elements;
• assembly of lift wells;
• erection of enclosing structures;
• creation of products from concrete and reinforced concrete.

Embedded parts manufacturing process

We produce metal embedded parts using high-tech processes: laser cutting, welding, threading, etc. For additional protection against corrosion, we use galvanizing, powder coating and other processing methods.

The manufacturing technology of embedded parts makes it possible to obtain fixtures of almost any size and shape.

Mortgage type structures are divided into 2 groups.

• Closed. Anchors on both sides are hidden by plates. The purpose of closed elements is the construction of supports, ceilings and facades.
• Open. The anchors are closed with one plate. This option is suitable for installation different types equipment and structures: climate control equipment, metal stairs, ventilation systems, and much more.