Plates of overlap PC - reinforced concrete bearing plates
Plates overlap PC - round-hollowReinforced concrete supporting structures designed to cover any premises. The service life of a building depends on the quality of its production. Can be made from light, dense and heavy silicate concrete.
Plates overlap PCs differ in the diameter of voidsand thickness. They must necessarily meet all the requirements of the state standards required in the design (for rigidity, strength, crack resistance). The main requirements put forward to the slabs of PC overlap are not only reliability, but also high sound insulation. They are distinguished by enhanced properties against the formation of cracks and chips. They are produced both with the use of tensioned reinforcement, and conventional. This is their main difference from the beam slabs overlap PB, which are produced only with the help of prestressed reinforcement. In addition, the latter have more flexible physical characteristics, allowing installation with any step, and also allow the plate to be made in almost any shape. Plates overlap PC have more stringent requirements for installation, but are much more dense and strong in characteristics for fracture / bending.
Lifting and assembling PC slabs,use special gripping devices or mounting loops. In the manufacture of this building material for unmanned mounting, the dimensions and arrangement of the holes are provided in advance in the drawings of the design documentation.
In order for reinforced concrete constructionmaterials have not lost their distinctive properties, it is necessary to observe the storage rules: the height when laying stacks should not be more than two and a half meters, with long storage it is necessary to support them on wooden bars. These pads are located near the special mounting loops.
Plates of overlapping hollow are intended forconstruction of the bearing part of structures and overlapping of different purposes. They are applied in strict accordance with the developed drawings and the necessary additional requirements.
Void constructions, in accordance withstate standards, labeled. It consists of groups that include a letter and a number separated by a hyphen. The first part indicates the type of hollow core, its mandatory dimensions, rounded to an integer, which are measured in decimeters. The second part indicates the serial number for the required load capacity or for the design load. In addition, denote the class of reinforced steel and the type of concrete (do not denote the letters heavy, light - A, silicate dense - C). The third group includes additional parameters.
Void overlappings, which are produced with parallel cavities (the length of overlappings is determined from them), are designed to support two or three sides.
Alphanumeric groups in brands containthe following necessary designations: the class of reinforced steel to be tensioned, the bearing capacity, the type of concrete, the size of the slab and the presence of apertures of a thousand, seven hundred or four hundred millimeters (denoted 3, 2, 1, respectively).
The greatest demand for housing constructionThe material 12 is used - a slab of overlapping PC with a width of one thousand two hundred millimeters. Accurate compliance with the requirements of standards and design documentation determines the further safety of the entire structure as a whole.
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