Critical error reinforcing angles strip foundation

Hello.

The Internet is full of schemes of reinforcement angles strip foundation. It seems that the topic is exhausted. In practice virtually every second object is configured disorders. To avoid confusion in dozens of schemes, will talk about the general principles of joining reinforcing bars, including the corners.

As it is impossible to reinforce the corners

If the ends of the reinforcement in the corners simply overlapped with each other and connect the wire, it will not work. Proper reinforcement should pass a single continuous loop. rods Crosshair does not provide collaboration rebar. After loading places crack first.

A few words about the binding wire. Assume that it holds the rods to each other - a common myth. The function of the wire - lock fitting that she has not moved from his seat at the time of concreting. Structural strength it is not attached.

Zaarmiroval wrong, but the foundation is still a

It is difficult to prove that a person who zaarmiroval foundation of "how not to", and the design should safely. But I'll try.

Not so long ago our ancestors when pouring the foundation did not even think of putting rebar, but the house is still standing. Yes, in some places there are cracks, but there is no disaster. Several reasons for this strength: well-chosen penetration, sufficient height of the concrete section, and houses three floors with a w / w floors no one has built.

Therefore, it turns out that a small house on the grounds of strong and powerful concrete foundation should even incorrectly associated fittings. He would stand even without reinforcement. But if a violation of the technology start doing fashion is now melkozaglublennye foundations, cracks can not be avoided.

If you do the calculation, doubts with overruns materials or their lack disappear. But it makes it extremely rare. One conclusion: if you decide to invest in a rebar reinforcing correctly. This allows the use of its properties to the maximum.

How to reinforce the corners

The purpose of any coupling rods - to ensure their joint operation (as a unitary structure). This is achieved in two ways:

• It is welding rods;
• overlap without welding rods (anchoring).

The length of the overlap of rods - the calculated value. This method is described in SP 63.13330.2012. In practice, reinforcing the foundations of private homes it is obtained in the range of 40-50 diameters without welding and welding diameters 10-15.

When we are using rods Feeder # 10 - whipped one another by 50 cm or weld 15 cm in length.

With such an approach does not necessarily attach the valve to the corners. You can bend the whip in half and put it in a corner, tying the ends of the rods with the following view of the anchorage. From the valve at the same time almost no scraps. Due to the fact that the joints are uniformly distributed around the perimeter, rather than concentrated in one place, it is a more reliable design.

As doarmirovat foundation

It happens that a person begins to decompose without anchoring rebar (crosshairs in the corners). Then he suggest how to do it right. This does not mean that the linked rods have to be dismantled. It is enough to add to the corners of the L-shaped rods, which provide anchorage to the working reinforcement. On this I have everything. Thank you for reading! And if there was any use to you, subscription and Like.