Build Daily


August 12, 2017 18:07

Reinforcement plates overlap with his own hands

Why this kind of overlap is used?

Reinforcement floor slabs has several advantages.First - there is no need to resort to the help of construction equipment, such as cranes.The second thing that is very important, this method allows for the overlap areas with non-standard dimensions.And the third - it's structural strength.Solid ceiling is much more durable than hardwood floors, it can carry high voltage and fire resistance.For wood floor able to withstand 25 minutes of action of fire, and rise - more than an hour.

Note!Solid ceiling can be done by the hands, but requires precise technological calculation of its load.

in the construction of private facilities spread the use of monolithic slabs.During installation of the ceiling plays a vital role and application of the correct calculation of reinforcement.Plate thickness calculated with respect to the thickness and the span is taken in a ratio of 1:30.For example, if the width of the span between the supporting walls of 6 meters, the monolithic plate thickness will be 0.2 meters.If specifically reduce the thickness of the concrete, the metal of flow increases, and if the thickness increases, the consumption of concrete also becomes larger.

Alphabet mounting overlaps

Reinforcement monolithic slabs is done using section reinforcement from 8 to 14 millimeters, depending on the design load.If the plate thickness is less than 150 millimeters, it is possible to do in one reinforcement layer, if the thickness of more than 150 mm, the reinforcement is performed in two layers.

In such a case one reinforcement grid rests on the bottom plate, and the other - at the top.The grid reinforcement is linked by means of wire.size of the cells is done in 150x150 mm or 200x200 mm.All grids created from a cross-section rods.Extra reinforcement is used in some places:

  • In the middle of the plate using the lower grid;
  • On top grid supports are used;
  • In places where loading and holes - some parts of the stress concentration.

Extra reinforcement is done with the individual rods in length 400-1500 mm, depending on the load and span.Often applied continuous reinforcement of the basic and additional - only holes. Note!Formwork is recommended to do the entire length.

important step in the installation is to install a monolithic slab formwork.For this purpose the timber may be used.formwork Racks are fixed securely and firmly, because the concrete can weigh up to 300 kilograms per square meter.For formwork used protective layer reinforcement, at least 20 millimeters.For this purpose under the net in the formwork underlay support.Next, the entire structure is filled with concrete M200, and 4 weeks after complete drying of the floor is ready.

What forces act on the design?Scheme

reinforcement slabs varies depending on the type of product, however, the general principles remain unchanged in the reinforcement.This is due to the general method of all reinforced concrete structures: load occurs from the top down, and most of it is distributed to the entire coverage area.

This principle suggests that the main operating valves - the bottom because the top part of the structure receives a compressive load which the concrete itself is well tolerated.The bottom part in turn undergoes tensile loading, it is therefore the main force absorbs the load on the entire structure.

Standard slab reinforcement consists of:

  • Working rods at the bottom of the plate;Working
  • top of rods (diameter they take less or the same as the top);
  • reinforcement that distributes the load;
  • supports for wire rod.

Important!reinforcement schemes can vary, so you need to consult with a specialist.