A small-breeding belt foundation, which can be easily underestimated in the shortest possible time, most often used for the construction of small-level buildings or fences in the country area. Reinforcement is performed to increase its stability and strength.

Before starting any work, you need to clear the territory: remove vegetation and remove the garbage. According to a predetermined markup, you must dug trenches. This can be done manually or with special equipment. For, to the walls were smooth, it is recommended to install a formwork. The frame is usually installed with the formwork. The solution is then poured with layers, waterproofing is carried out using rubberoid sheets. With the proper compliance with the technological sequence The life of the belt foundation is from 20 years. But it is recommended to perform repairs every 10 years.

Why reinforce the belt foundation

Frequently ask a question how to properly reinforce the ribbon foundation with your own hands. Concrete is quite durable, but not enough plastic material. He can it is good to cope with the load on compression, but to collapse with stretching loads.

Concrete is extremely bad for stretching, and to "help" him, for stretched layers of concrete and introduces steel reinforcement, which takes on tension efforts

To increase the strength of the foundation and extension of its service life, reinforcement of a belt foundation, which can be performed with your own hands, does not attract specialists. It suffices to comply with the technological sequence and choose a material of good quality.

After all, if the work is made in compliance with all requirements, the strength of the foundation is noticeably improved:

• the rods of reinforcement, laid horizontally, significantly increase the tensile strength and bend;
• pruts located vertically serve as strengthening elements and ensure cutting strength.

For reinforcing a ribbon foundation, rods of different diameters are used depending on the purpose.

How to calculate the number of reinforcement and its diameter

Thanks to this calculation, you can find out how many rods of the reinforcement and what sizes it is necessary to give sufficient strength to the belt foundation. This uses fittings of different types and thickness.

For the construction of a ribbon foundation under a residential building, ribbed rods with a diameter of 10-20 mm are used, and smooth round rods with a diameter of 6-12 mm are used for transverse and vertical reinforcement.

The scheme of reinforcement depends on the minimum content of longitudinal rods and their minimum diameter. Thus, according to the standards, the longitudinal rods should be at least 0.1% of the ribbon cross section. For example, if the height of the belt foundation is 1200 mm, and the width is 400 mm, then, based on the calculations, the minimum total area of \u200b\u200bthe rod cross section is 480 mm2.

The figure that turned out in the previous calculation must be divided into the section of the selected fittings. This will be the approximate number of longitudinal rods for the frame.

But you can choose the number of rods of a certain diameter on the table:

Armature, depending on the steel grade, has a different stretch resistance

In addition, the minimum permissible diameter of reinforcement rods should also be taken into account.

Depending on its use, it will be different:

In order to perform the calculation of materials for reinforcing a ribbon base, it is necessary to measure or calculate the length of its tape and multiply by the number of longitudinal rods in all levels.

In order to calculate the required amount of transverse rods, the number of clamps is calculated, which is planned to be installed (the tape length is divided into the distance between the clamps) and is multiplied by the length of the reinforcement necessary for the manufacture of one clamp. Similarly, it is calculated if not clamps will be applied, but pieces of fittings.

How to reinforce the ribbon foundation with your own hands

When the calculation is made, the required number and the diameter of the section of longitudinal rods are selected for reinforcing the ribbon foundation, it is necessary to choose a scheme of knitting frame.

There are several options. It is better to choose a simple and reliable. Sometimes choose the scheme for which reinforcement is performed only by the bottom or only the top of the belt base. But this is not worth doing. After all, the foundation is influenced by the weight of the house itself on the one hand, and on the other, the power of frosty meal can cause voltage in the upper parts of the base. Hence, it is necessary to reinforce the top, and the lower parts of the base.

The middle part can not be taken into account. But if the number of rods for reinforcement is that it cannot fit in two rows (from above and below), then, of course, it is worth thinking about the device of an additional tier in the middle.

It is better to think over and apply a simple scheme of reinforcement from a square or rectangle. Then, if you make the right axis of the frame, the base itself will be durable and stable.

Montage Karcasa

It should be taken into account the combination of the length of the foundation with the length of the supplied fittings. This will help reduce the number of joints and save material resources.

Specialists recommended before installing a frame to make a sweet. Such a sandy-gravel pillow is performed as follows: The base of the foundation is poured with a concrete solution with a layer of 5-8 mm and expect it to frozen.

If it is decided to do without sweeping, then under the lower rows (tiers) reinforcement rods are installed. At the same time, the gap of at least 15 mm is obtained between such a pillow and the reinforcement so that the concrete solution can penetrate the bottom and thereby strengthen the reinforcement.

For mounting horizontal rows most often used round ribbed fittings, the diameter of which is 10 -16 mm. Longitudinal rods can be combined with horizontal transverse reinforcement. The rods of the longitudinal reinforcement are fastening the venge reinforcement with a length of at least 50 cm.

If the height of the belt foundation is greater than 0.15 m, the upper and lower levels, it is also necessary to be copper with vertical reinforcement rods. For this, a smooth reinforcement with a diameter of 6-8 mm is often used. It is recommended as transverse and vertical reinforcements to use rod clampswhich bended like a frame and mounted in size sizes.

But, no matter how the ribbon reinforcement scheme was not selected, we must not forget that the distance between the reinforcement and formwork, as well as the top layer of the fill of the concrete, should not be less than 15 mm.

Between themselves, the rods are combined with soft knitted wire made of steel.. To facilitate work, you can apply special devices. For example, knitting hook. It can be purchased in the store, but you can make it yourself. This will require only a piece of reinforcement and a wooden or plastic handle.

The opening inside the handle should be such that the core together with the crochet can freely rotate when the wire is binding. So, it is folded in half and hardened under the joint of the reinforcement. The sharp part of the hook is pushing the loop of the wire and make 2-3 turns, tying it with another end. It should not tighten it tight so as not to break it. Some apply welding. But specialists do not recommend using it, because Connection locations are often subject to corrosion.

When performing work, it is necessary to ensure that the diameter of the longitudinal rods for the belt base was the same and was uniformly in the width of the entire foundation. If for some reason the diameter of the rods is different, then the reinforcement of the larger diameter is placed in the lower ribbon. It should be strictly ensured that the rods of the upper level of the frame are placed above the lumen between the lower level rods.

The craftsmen fit the homemade knitting hook to the screwdriver and, thereby dramatically accelerate the process of mating frame

Reinforcement of the ribbon foundation can be performed with their own hands without acquiring expensive tools. It suffices to follow the technological sequence and use the materials of the recommended dimensions. In this case, the service life will be long.

For details on how to reinforce the foundation with your own hands, you can watch the video: