Reinforcement frame is designed for productionreinforced concrete monolithic structures. The device allows to give rigidity to a structure, assuming stretching and bending loads. The reinforcing cage is also used to make the foundation of the building and for the production of reinforced concrete slabs.
There are different types of materials forimplementation of reinforcement of walls, construction of roads, arrangement of foundations and production of reinforced concrete products. Depending on the diameter and location of the rods, metal frames are divided into light and heavy.
At the same time - depending on the form -The designs are divided into reinforcing mesh, flat and spatial. They are round, triangular, T-shaped and square. The type of frame is primarily dependent on the design of the product. So, the spatial reinforcement skeleton can be assembled from several flat varieties. Moreover, this transformation can be carried out at the construction site, thus reducing the cost of transportation.
Today, the manufacture of structures has shifted tomainly from construction sites to factory production shops. This allows you to significantly increase the strength and quality of products, save time on assembly. Reinforcement frames of buildings represent a connected or welded structure of rods and other elements. In the production conditions the binding of the reinforcement is replaced by contact welding.
Billets for the manufacture of products aremetal rods, which (depending on the design) are installed transversely and longitudinally. The steel was determined by design documents. Depending on the temperature of the environment, metals that are not exposed to cold brittleness are used.
If the products are to betemperature below minus 30, then the steel grade is Втт5пс2. In the northern regions, rods made of grade 35GS grade A3 material are used to make the reinforcing cage. In addition, the degree of weldability of steel should be considered. It is forbidden to combine heat-strengthened reinforcing material and high-strength wire by thermal means, as the result of welding will lose the effect of hardening.
Armature for the manufacture of frame structures fromThe reinforced concrete is divided according to the material used into nonmetallic and steel. According to the production technology - on the core hot-rolled (diameter from 6 to 90 mm) and round wire cold-drawn (diameter from 3 to 8 mm). Products are produced in the form of high-strength and ordinary wire, as well as strands and reinforcement ropes.
The reinforcement frame is made ofperiodic or round smooth profile. In the first case, the reinforcement has a curved surface, which allows for better adhesion to concrete. By design, we distinguish designs made from working fittings, which mainly perceives tensile stresses, distributive, designed to evenly separate the load between the rods, as well as the assembly used to assemble the skeletons.
