Plates of overlapping PC - reinforced concrete bearing plates

Plates overlap PC - round-hollow reinforced concrete bearing 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 voids and thickness. They must necessarily comply with 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 overlapping are not only reliability, but also high sound insulation. They are characterized 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.

To ensure that the reinforced concrete construction materials do not lose 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 for building of a bearing part of constructions and overlapping of different purposes. They are applied in strict accordance with the developed drawings and the necessary additional requirements.

Void structures, in accordance with state standards, are 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, they denote the class of reinforced steel and the type of concrete (not denoted by letters heavy, light - A, silicate dense - C). The third group includes additional parameters.

Ridge overlay slabs are made for overlapping in multi-storey buildings or in production facilities with a minimum step of six meters. Their height is four hundred millimeters (in accordance with state standard 27215-87) or three hundred millimeters (in accordance with state standard 21506-87).

Void overlappings, which are made with parallel cavities (the length of the overlap is determined from them), are designed to support two or three sides.

The alphanumeric groups in the stamps contain the following necessary designations: the class of reinforced steel to be reinforced, the bearing capacity, the type of concrete, the slab size and the presence of apertures of one thousand, seven hundred or four hundred millimeters (denoted 3, 2, 1, respectively).

The greatest demand for house building is the material 12 - slabs overlap PC with a width of one thousand two hundred millimeters. Accurate compliance with the requirements of standards and project documentation determines the further safety of the entire structure as a whole.