Design of embedded parts

WHAT IS A FACILITY PART AND AREAS OF ITS APPLICATION

Embedded parts in construction are steel products, the task of which is to firmly connect technological and building structures and a reinforced concrete base. The design documentation specifies the type of element used.

APPLICATION AREAS OF PARTS

• installation of barriers and supporting structures, metal gratings;
• fastening of facades, aluminum profiles, tanks, heat exchangers, technological equipment;
• creation of a berth, hydraulic structures, searchlight masts;
• arrangement of reinforced concrete staircases, fire escapes, cell towers;
• installation of road fences, reinforcement cages, columns;
• framing openings;
• lining of elevator shafts, crane runways, tunnels;
• formation of sites for containers and various equipment.

TYPES OF MOLDED AND INSTALLATION FEATURES

The shape of the plates of embedded parts for metal structures is in the form:

• circle;
• rectangle;
• square;
• rhombus and so on.

THE ELEMENTS MUST MEET THE REQUIREMENTS OF GOST 14098-91. IN ACCORDANCE WITH THEM, FACILITIES MAY HAVE:

• 1 plate - open;
• 2 plates: the top and bottom of the rods are closed.

The first type is functional, therefore it can be used in most construction and installation work. The correct application for stamped elements is for parts with low design loads. For example, parts that transfer the load from wall parts to the columns.
Embedded parts differ according to the type of installation. They can be immersed in a concrete solution after pouring: before it hardens. Or the parts are attached to the monolithic frame before the mixture is poured. This option provides maximum strength.
Provided that the products were not planned at the production stage, in the case of joining two monoliths, the following fastening methods are used:

• through;
• surface.

The latter method involves immersing the hardware into the drilled hole. The first method is more reliable and durable. But it's not always possible to use it. Through fastening, threaded or threaded and die anchors are used. The part is immersed in the hole in such a way that the other side goes to the end of the entire product. Then put on another die, which is secured with a nut. This is the most durable bond. When it is not possible to use it, anchor systems with a expanding element are used. It expands in the hole when tightening the nut. In this case, it will be impossible to extract the hardware.

CONSTRUCTION

Structurally, embedded products look like a steel plate, angle, channel or other rolled metal with welded anchors. They can be coated with zinc or paint.
Embedded parts do not have a precisely regulated shape, so designs can vary greatly. It all depends on the destination.

ANCHOR PARTS (ELEMENTS IN THE BODY OF CONCRETE PRODUCTS) ARE RELATING TO THE DIE:

• parallel;
• inclined;
• perpendicular;
• mixed;

The design of the tilted inserts is the strongest. It is used if there is no fastening to the metal frame. The design of embedded products with perpendicular fastening is the weakest, most of all with horizontal placement of the part.
The design of embedded products with a perpendicular arrangement is the weakest, most of all with a horizontal arrangement of the part.

MANUFACTURING MATERIALS

The most reliable material for the manufacture of embedded products is carbon steel 09G2S. Embeddables from 09G2S are ideal for cold microclimate. They can be welded to each other by any kind of welding. Moreover, there is no need for additional preparatory operations.

SIZE

The sizes of embedded products in capital construction have strict regulations. They depend on the dimensions of monolithic products and the tension / non-tension of the reinforcement. In GOST 10922-90, the requirements and dimensions are thoroughly described. The standard takes into account the steel grade and the load, the configuration of the embedded parts, the location and distance between the anchors are regulated. Typically used reinforcement with a diameter of 8-22 mm, profile or plain section. The brand is selected based on the temperature indicators of operating conditions.