Piling of the pile foundation: features of the device and recommendations for installation

The binding of the pile foundation is extremely important, as it significantly increases the strength and stability of the house structure. It can be carried out by different methods and has its own nuances in each specific case.

Pile foundation is always preferable when it comes to timber and frame buildings. In addition, it is relevant for non-standard characteristics of the soil, in different climatic zones up to the Far North regions.

Its advantages are:

• application in severe weather conditions and on difficult grounds;
• the ability to use with different types of terrain;
• long service life (up to 100 years);
• quick and easy installation;
• affordable cost unlike other types of foundation.

The advantage of this design is also considered to be the absence of excavation work, since the piles are screwed into the ground for a strictly calculated freezing depth at certain intervals.

The upper part of the pile foundation is necessary for hardening the structure, so the grillage is usually erected.

Its main functions are:

• is a support for the walls and floors of the basement;
• serves to evenly distribute the load between the piles;
• prevents overturning of supports and their shifting due to an increase in the spatial rigidity of the base.

For strapping can be applied grillage of timber, channel, reinforced concrete, wooden boards and other materials. In this regard, the installation will have some differences. You can do it yourself, if there is no special equipment for immersing the screw supports in the ground.

Rostverk from a bar is applied when the frame or bar-shaped house is planned.In this binding can be performed independently by a couple of people. Do not forget that you should pay attention to the strength of the selected wood. It is better if it is oak, larch or cedar - it is the most strong and resistant to external influences of the breed.

Works are carried out in the following order:

• The beam is mounted on tips, which are pre-treated with antiseptic impregnation - wooden parts must be completely dry;
• after the installation of the piles, steel platforms 4 mm thick with a size of 20x20 cm are welded onto them; holes are made with a diameter of 8-10 mm to fix the timber;
• then the welds and caps are coated with nitro-paint or anti-corrosion agents;
• bikrost or roofing felt is placed on metal pads;
• the first crown - a row of timber laid on them, the ends put a paw in the paw;
• With the help of a measuring tape, the accuracy of the geometry of the structure is checked, after which the timber is fixed to the piles with platforms with screws 150 mm long and 8-10 mm in diameter, additionally it is possible to fasten with bolts by drilling through the bars.

For the pile-screw foundation, a 50 mm thick board is used. With the height of the grillage above the blind area no more than 0.4 m, it is not necessary to reinforce the structure, if a level of 0.7 m is observed, the piping with a profile tube is necessary. If this size is exceeded, this procedure is carried out at intervals of 60 cm.

Installation is as follows:

• platforms are procured on supports;
• the first board is placed wide side down, fixed with bolts and washers;
• on the already fixed tree stand 4 more boards, tightly to each other, fasten with screws, fasten the hardware from the bottom side;
• professionals recommend to lubricate each joint with glue before fixation;
• after fastening to the bottom board, the structure is bolted through;
• from above place another board, fixing it with nails and screws.

Many are interested in how the structure to protect the grillage of the boards. Best for these purposes is suitable wood preservative "Senezh" or "Pinotex Ultra", as for waterproofing compounds, it may well be liquid rubber or similar sealants.

The binding a channel is used at construction of brick, frame, chopped and bar-shaped structures. Such a structure is particularly stable and reliable. But a profile tube or a standard I-beam with a cross section of 20 mm can also be used, which provides even greater rigidity of the structure, especially if it is assumed to be heavy.

Binding technology includes the following steps:

• after installation of the supporting piles, all the pillars should be strictly aligned to zero;
• after measuring the details of the grillage, the channel is laid out and cut into pieces of the required length;
• all metal elements are treated with anti-corrosion compounds in two layers;
• profiles are mounted on poles and cut off at right-angle joints;
• the grillage is fixed by the welding method, after which the seams are coated with a primer mixture.

In some cases, a pipe mill can be used, which is fixed by a similar method. This material is lightweight and affordable.However, it should be borne in mind that this product is more subject to mechanical stress, therefore the stability of the whole structure will be much lower.

The metal channel is chosen as a whole-rolled, as it can withstand heavy loads than elements made by bending.

Finding out which piping is better - of course, this is installation using a grillage of an I-beam or channel bar, but, on the other hand, a lot depends on the type of building.

Tying a corner is the most practical and economical solution, since these profiles are much cheaper than a channel or an I-beam. For strapping need parts with equal sides (75 mm).

Algorithm of work:

• first, the screw piles are leveled off, the sections of the cuts are ground;
• head plates made of sheet steel are welded to them, plates from the sides are reinforced with kerchiefs;
• the level is checked for the height of the sites;
• marked central axis;
• corners are mounted shelf up to the outer contour, in the corners profiles are cut at an angle of 45 degrees;
• then the corners are welded to steel pads with high-quality welding seams;
• the next step is to install the corners of the inner contour, they are also laid with the shelf up and welded;
• the last step is to weld the partition walls and cover the metal parts with two layers of paint, at the end they clean the seams.

The binding of the reinforced concrete grillage has some drawbacks - laborious installation and stopping of construction work until the grillage, which occurs within 28-30 days, is fully set. However, such an installation will be much cheaper than the use of metal profiles.

Installation includes the following steps:

• support piles are set on the same level;
• prepare the formwork of the boards with the inner oil-cloth upholstery to avoid leaks;
• a frame is erected from metal reinforcement; horizontal parts are fastened with wire along verticals;
• the design is lowered into the formwork, welded to the piles, then poured concrete solution.

After pouring, it is advisable to compact the cement with reinforcing rods or vibrations.

You should know that ground-based grillages are used only with stable ground. If the soil is prone to swelling, then it is better to use the trailing option. During the construction of multi-storey buildings, the strapping is usually done with the help of in-depth structures.

The correct binding of the pile-screw foundation guarantees durability and durability of the building. This is especially true if the building is being erected on unstable, weak ground or marshland. Difficult terrain also requires due attention to this important workflow.

Tips for tying the pile foundation - in the next video.