The thickness of the slabs and slabs reinforced alternative

slabs GOST

Concrete and hollow-core slabs - the most reliable and durable option for the construction of residential buildings.It is important not only to calculate the correct load on the plate itself but also the force with which it presses on a wall foundation and supporting structures at home.Inconsistency in the weight of the walls and ceilings of endurance can serve as the main cause of accidents buildings.

That's why choose such key materials and execute the project drawing is not based on the traditional Russian "maybe", and strictly following the rules and regulations.In particular, on a visit in detail spelled out all the information about the requirements for RC floor slabs.

GOST 26434-85

It does not get lost in the size of manufacturers of floor slabs will help the principle of formation of the product code.Take, for example, the code PK34-10: in this case the length is 3400 mm, width 990 mm (PC means floor slab).Width 990 mm carefully thought out and allows the assembly of overlapping of RC slabs meet the required length without problems.

How to calculate

slabs thickness most economical construction will, if count of materials and structures, taking into account the smallest possible loads.This can reduce the pitch bearing structures, allowing for overlap of the load will be distributed more evenly.The increase in load-bearing columns increases the cost of construction, and the reduction in the thickness of the slabs significantly reduces it.Even in the most elite homes will look organically step bearing structures 4.6 meters.This will be used without risk to people and building slabs with a thickness of 12.7 centimeters.By reducing the span decreases consumption of steel reinforcement - the most expensive component of quality overlap.

image Explanation:

Co - reinforcement of concrete and the price;P - step support structures;About - fire resistance;Mo - the volume of concrete used;1 - building codes for the filler of expanded clay shale;2 fibreboard and chipboard 12.7 cm;3 - recommended by the Association of Portland cement rate, calculated by the interpolation parameters of the accepted construction standards

It should be noted that the overlap in the 12.7 cm thick, made of heavy concrete standard grades, corresponding to almost all standards of fire safety.

And yet some of the rules dictate the use of overlap between floors with a three-hour fire resistance rating, and therefore, in such cases, the recommended concrete with less weight or greater thickness.

What alternatives exist overlap

Concrete slabs - is not the only way, if you need to make the support structures between the floors.Consider the alternatives:

• monolithic slab - rather laborious process requires the installation of the formwork, reinforcement, concrete pouring and formwork removal;need a lot of time for hardening concrete (at least 2 weeks) + in the winter requires heating the room;
• hardwood floor - easy, which is important for the fragile support structures and weak foundation solutions, but need special treatment from the cracks of rotting and pests, plus to all this the floor is unstable, vibrating, that will not allow, for example, decorate the floor tiles.

If you still choose to use slabs of reinforced concrete, remember that the easiest way to carry out their installation in the building of a direct form - without roundness and other decorative solutions.