Installation of reinforcement in a ribbon foundation

As is known, concrete is incredibly durable material, however, in the case of the foundation, as well as many other concrete structures, it is simply necessary to apply high-quality reinforcement. In modern conditions, it is enough to go to the building supermarket and acquire the necessary amount of metal reinforcement. This solution will definitely strengthen the foundation, even if we have the foundation erected using not the highest quality solution.

As for the use of reinforcement for reinforcement, in this case it is necessary to carry out a detailed calculation, which allows you to establish the right amount of metal base elements. It is worth noting in advance that in this calculation you need to take into account not only the area of \u200b\u200bthe foundation, but also the specifics of its design.

In this article, we will consider the specifics of the use of reinforcement in the tape base. This type of foundation has its own characteristics about which we are next and talk. In addition, there are many options for creating a reinforcing frame. In some cases, builders have the opportunity to save money using smaller volume of reinforcement. It is also very important to pay attention directly to the process of installation of reinforcement.

Specificity of calculating the required number of reinforcement

If we are talking about the calculation of the reinforcement, then it is necessary to establish the required amount of this product, its diameter and length. Moreover, you can find the fittings of different types. Often in construction stores there are the following types of products:

• armature with a ring profile;
• reinforcement with a sickle profile;
• mixed reinforcement profile.

In the case of a belt foundation, builders advise to use any of these types, but at the same time it is not recommended to use products on which there are no ribs. Such fittings are suitable for many other purposes, but with concrete it will be captured in the best way. In turn, any ribs create a clutch with concrete, so the whole design will be sufficiently strong.

As for the diameter of the reinforcement, you can find a wide variety of options, however, it is recommended to use metal products with a diameter of 10-20 mm to create a ribbon basement. Ponds that will be vertically may have a diameter and about 6-8 mm.

After that, you need to decide on the minimum content of reinforcement in the belt foundation. To do this, use official SNiP standards, which present the most authoritative data on construction work. Thus, in paragraph 7.3.5 it is indicated that the minimum content of longitudinal reinforcement should be at least 0.1% of the entire area of \u200b\u200bthe ribbon cross section. For example, if we have a foundation with a height of 1200 mm, and a 400 mm wide, the total area of \u200b\u200breinforcement cross sections should be 480 mm ². This is the most minimal value that allows you to be confident in the reliability of the building structure. In the event that there is not enough reinforcement for the construction of the foundation, it is advisable to freeze the project, as an emergency will subsequently arise.

Determination of the desired number of longitudinal reinforcement rods

In order to determine the required number of longitudinal metal products, you need to use the past calculations and divide the obtained value to the cross section of the selected fittings. Thus, we get the exact number of longitudinal rods. In this case, we can also take advantage of building standards if any values \u200b\u200bdo not fully comply with the project.

At the same time, it is possible to find useful tables in SNiP, which allow you to determine the amount of reinforcement required for the foundation, depending on the diameter and the total number of rods. Thus, you can pre-assess your financial spending on strengthening the foundation.

Optimal reinforcement scheme

On the Internet you can find a huge number of reinforcement schemes and other concrete structures, but it is worth paying attention to the simplest options that are certainly not creating problems even beginner builders.

Experts often recommend reinforcing a square or a rectangle. Accordingly, the width of the carcass should be not more than half of its height. It should be borne in mind that the ribbon foundation is often uninformed, but very long, so the base will be subject to longer stretching. Thus, the vertical and transverse elements of the reinforcement are in more degrees of the structural elements of the foundation.

Thus, if we chose rectangular reinforcement, the height of the metal part of the foundation should be greater than the width. It turns out that we have 4 longitudinal fittings. The number of transverse elements is not so important. The main thing is to make that the design is reliable, and no deformations occurred when pouring concrete.

The specificity of the mating fittings

Of course, the nipping of reinforcement is an extremely important process, on which not only the reliability of reinforcement depends, but also the overall geometric accuracy of the armature. Accordingly, if we unreliable fit the reinforcement, when pouring concrete, it can change its position. Moreover, this error will be extremely difficult to fix if the concrete is already flooded and dials strength. Often, 2 ways of mating fittings are used:

• With wire. Yes, indeed, for such events, it suffices to use the most common wire, which binds the elements of the reinforcement. Of course, for this, we will need to use a solid wire, which, when flexing, will not be damaged. It is advisable to spend a small test of wire strength, as it is impossible to risk when creating a foundation. Most often, for the strapping of two or three reinforcements, about 30 cm wire is required. Save in this matter certainly should not.
• With welding. It is worth saying that the welding for such works is used much less often, but this method has certain advantages. First of all, we get reliable seam, which will definitely stand the weight of the concrete mixture. Moreover, this embodiment allows you to be sure that the reinforcement will not shift when pouring concrete.

There are also a lot of other versions of fittings. For example, electrical hooks or a screwdriver with a special nozzle are often used.

In addition, some experts recommend using welding for reinforcing the reinforcement only in hopeless situations, since this process discourages the reinforcing properties of reinforcement.

Features of the reinforcement of the ribbon foundation angles

Specialists who are engaged in various construction projects argue that the reinforcement of the foundation angles is the most difficult task that creates a lot of problems. In many building standards, it is indicated that the reinforcement reinforcement in the corners must be curved. Of course, few people will specifically bend fittings for this process, so direct material involves in construction.

It is reported that with such a situation, there is a high probability of cracking in the corners of the foundation, which subsequently creates many problems associated with the strength of the foundation and the whole structure.

Thus, there are two options for amplifying the corners of the foundation:

• Reinforcement M-shaped strengthening. In this case, curved fittings are used, several elements can be used immediately, placing their brass. With this situation, reinforcement will be as efficient and reliable as possible.
• Reinforcement P-shaped gain. Everything is almost the same as in the case of the past strengthening, however, the P-shaped fittings provide greater reliability, even for this will have to use more metallic products.

It is clearly necessary to use transverse reinforcement, which at the corners of the foundation will perform add the area of \u200b\u200bthe entire design. Moreover, this question does not depend on what we have an angle - straight, sharp or stupid.

Again, you should contact the building standards, where many information is specified directly about the reinforcement of the foundation angles. Indeed, there are many situations where the angle of the foundation will have an original design.

The remaining issues related to the reinforcement of a belt foundation

Before starting the installation of fittings in a tape base, several important issues should be considered, which are definitely important in this process.

• Selection of reinforcement. As we have already spoken, when choosing fittings, you should pay attention to the diameter and other dimensions of the material. At the same time, the smooth reinforcement is better not to use. However, if necessary, smooth metal products can be used as transverse reinforcement. Separately, I would like to note that when installing it is best to use the same reinforcement. We are talking about whether one reinforcement is used in cross connections, and in the longitudinal - the other, however, in the same positions, it is better to use the same type of product. In the event that the owners use the valve of various diameters, length and profile, you can face problems. First of all, we are talking about the burden on the base. If in some place the valve will be less durable, and the load on the foundation will be too high, the base can be covered with cracks. It is impossible to admit this.
• Specificity mating fittings. We have already mentioned the most common ways to connect fittings to create a reliable design. At the same time, do not forget that it is still not worth combining the connection methods. Moreover, in the overwhelming amount of cases, a nipper is used using a wire. Just just stock material of the material in order to securely connect all the elements of reinforcement. In the event that errors are detected in the design (perhaps even the smallest), the wire can be simply removed, or remove with nipples, after which it is possible to correct the situation. In the case of welding, everything is essential. For high-quality welding, you need money. In addition, it is obvious that after this event, it is no longer possible to change the location of the elements of reinforcement. In addition, as we said, specialists in the construction sector persistently recommend abandoning the welding of reinforcement in favor of knitting with wire.
• Total structural strength. At first glance, a design consisting of fittings may seem strong enough. Moreover, even small tests can demonstrate the excellent stability of the design to deformities. Unfortunately, not everything is as simple as it may seem at first glance. For example, if the pouring of concrete will occur with specialized transport (automacer), problems associated with the resistance of reinforcement are possible. During the fill, the strong set and weight of the concrete mix can strongly affect the design. If in some places the wire fastening was quite weak, it will immediately manifest. Accordingly, in such a situation, it is necessary to either check each connection, or to produce the pouring of concrete manually, making everything so that the reinforcing design does not shift any millimeter.
• Material consumption. We have already considered the issue associated with the necessary volume of reinforcement. It is worth saying that many owners specially use more reinforcement so that the foundation becomes stronger. In fact, there is no positive effect from such actions, therefore, it should be used by the most minimal values \u200b\u200bof the number of reinforcement, which is provided in the construction standards.