you need
  • - reinforcing wire;
  • - bar reinforcement;
  • - welding machine;
  • - binding wire Ø0,8-1,2 mm;
  • - Roulette;
  • - angle grinders.
Guide
1
Select Product installation fittings.Strip foundation work for compression and bending in the vertical plane.With regard to compression do not worry, concrete is able to withstand high compressive loads.But bending stresses arising from the uneven soil settlement and swelling, are very dangerous.To neutralize it, must be on top and bottom of the foundatio
n along its length put rebars diameter 10-14 mm.Often limited to seal all four rods - two below and two above.The responsible structures of their number increased to 6 - 8.
To isolate the valve from the groundwater, it must be located in the depth of the foundation at a distance of 50-70 mm from all its surfaces (bottom, top and side).
2
Valves convenient to collect in the form of individual segments is shuttering, then inserting them into the formwork and interconnected into a single steel frame.Bend of reinforcing wire shape of the letter "P".Jumper letters will be placed across the width of the foundation, so its length must be smaller than the width of 100-140 mm in the foundation.The ends are arranged vertically, so their length must be the same size (100-140 mm) less than the height of the foundation.Number of blanks should be calculated based on the total length of the base, provided that the distance between them is about 0.5 m.
3
Set the letter "P" on the ground jumper down one row at a distance of 0,5 m from each other.That they did not fall, tie them to stakes stuck into the ground next to them.The length of one segment of the valve shall be such that it could be easily installed in the formwork - 2.5-3 m. Put inside the letters "P" (in the corners), the two reinforcing bars a length of 2.5-3 m and weld them to the wire.200 mm above the fix two rod of the same length, tied or welded them to the vertical wires (pins "P").These rods join together webs of wire or rods.The result is a lower reinforcing belt segment, consisting of 4 working rods.
4
create a similar zone in the upper part of the frame.Ietie to the vertical wires are two rows of reinforcing bars with a distance between rows of 200 mm.Connect them together longitudinal ligament.The result of all the work will be a segment of reinforcement, consisting of upper and lower zones, each of which in turn consists of 4 working rods.
5
Make a necessary foundation for the entire amount of such segments.Set them into the mold of the stones on the pedestal height of 50-70 mm, thus providing the necessary clearance between the fitting and the bottom of the basement.The distance from the reinforcement to the sides of the formwork must be the same (50-70 mm).The ends of the rods adjacent segments should overlap by 200-250 mm.Tie the ends of each pair together with three twists binding wire (two at the ends and one - in the middle).
6
Bend 90 ° required number of reinforcing bars intended to connect the segments in the corners of the basement - eight on each corner.Connect them adjacent segments.Connection settings should be the same as in the previous step: overlapping cores is not less than 200-250 mm, the number of twists of the wire is not less than 3 at each joint.This laying the foundation reinforcement is finished.