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Nail plate: made in Russia. Application of nail connecting plates (NCP) What is NCP

Nail plate: made in Russia. Application of nail connecting plates (NCP) What is NCP

Such wooden structures are most relevant for the construction of garages, garden buildings and summer cottages.

This technical manual describes the principles of connecting parts, provides illustrations of the main structural units and recommendations for the selection of sections of wooden hanging elements rafter systems.

More complex types wooden structures must be calculated and assembled at the manufacturer's factory.

Rice. 11.01 Installation of homemade wooden hanging rafter systems. The joints of the lower chord should rest on load-bearing walls in the middle of the span.

  1. The upper and lower chords of the structures are in the same plane.
  2. Steel perforated plates are located on both sides.
  3. The lower belt of the structure is attached to the upper one with an overlay.
  4. Wooden overlays may only be nailed on one side.
  5. A bolted connection using lock washers with external teeth, clamped between the parts to be joined, and also using washers.

Rice. 11.02 Span, roof angle, location load-bearing wall

1. The lower chord of homemade wooden triangular three-hinged arches (hanging rafter systems), designed for a span of more than 4.2 m, must rest in the middle on a load-bearing wall.

Rice. 11.03 Example of a steel perforated plate with an arrangement of holes guaranteeing optimal distance between the nails

Table 11.1

Selection of the cross-section of elements of wooden triangular three-hinged arches, required amount nails for connections on perforated steel plates. Selecting the diameter of lock washers for bolted connections
Snow load S 0, kN/m² Roof angle 18°≤ α ≤ 22° Roof angle 22°≤ α ≤ 37° Roof angle 37° ≤ α ≤ 45°
Span L*, m Upper chord h, mm Bottom chord h, mm Upper chord h, mm Bottom chord h, mm Connection of the upper and lower chords, junction of parts of the lower chord***** Upper chord h, mm Bottom chord h, mm Connection of the upper and lower chords, junction of parts of the lower chord*****
Number of nails**** D st. washers ***, mm Number of nails**** D st. washers ***, mm Number of nails**** D st. washers ***, mm
2,5 3,0 123 173 6 50 123 173 5 50 123 173 3 50
3,6 148 198 7 62 148 198 6 50 148 198 4 50
4,2 173 223 8 - 173 223 7 62 173 223 4 50
4,8 198 148 9 - 198 148 8 - 198 148 5 62
5.4 198 148 10 - 198 148 8 - 198 148 5 62
6.0 223 173 11 - 223 173 9 - 223 173 5 62
6,6 223 173 12 - 223 173 10 - - - - -
4,5 3,0 123 173 8 - 123 173 7 62 123 173 4 50
3,6 173 198 10 - 148 198 9 - 148 198 5 62
4,2 198 223 11 - 173 223 10 - 173 223 6 62
4,8 223 148 13 - 223 148 11 - 223 148 7 -
5,4 223 148 14 - 223 148 12 - 223 148 7 -
6,5 3,0 148 173 11 - 148 173 9 - 148 173 5 62
3,6 173 198 13 - 173 198 11 - 173 198 6 -
4,2 223 223 15 - 198 223 13 - 198 223 7 -

* The thickness of the structure's chords is 48 mm, the grade of lumber is 3rd, the center distance between the arches is 600 mm.
** For a span of more than 4.2 m, the lower chord of the arch must rest in the middle on the load-bearing wall.
*** Also used are bolts with a diameter of 20 mm and washers 60x60x5 mm.
**** Design load for 1 nail 646 kN. This number of nails should be used on each side of the joint, on both sides of the structure.
***** The joint of the lower chord of the arch should be located above load-bearing wall in the middle of the span.
Rice. 11.04 Basic parameters of homemade wooden tangular arches
  1. The top chord of a homemade wooden triangular arch.
  2. Bottom belt.
  3. Flight.
  4. Overhang.
  5. Roof angle.
  6. The load-bearing wall strapping should extend all the way to the outer edge of the junction of the upper and lower chords of the truss.
  7. The roof overhang should not exceed 500 mm.
Rice. 11.05 Connecting the upper and lower chords of the structure using perforated steel plates and nails
  1. For homemade wooden arches in in this case plates are used on both sides:
    100×240×1.5 mm, if the span is up to 4.2 m
    100×300×1.5 mm, if the span is more than 4.2 m
    In this case, the calculated snow load should be less than 4.5 kN/sq.m
  2. The minimum distance from the end of the wooden element must be greater than 60mm.
  3. In this case, you need to use 4.0x40 mm corrugated nails, distributing them evenly over the plate, observing the minimum indentations (items 3 and 4). The number of nails per connection is selected according to table 11.1.

Table 11.2

Rice. 11.06 Connecting the upper and lower chords of the arches using a bolt and two one-sided lock washers with external teeth, clamped between the parts to be connected, as well as using washers
  1. Lock washers with external teeth - 2 pcs. The diameter of the lock washers is selected according to table 11.1.
  2. Bolt, 20 mm. Minimum distances from the end and edges of wooden elements, see table 11.2.
  3. Washer, 60×60×5 mm.

Rice. 11.07 Connecting the upper chords of triangular arches in the ridge using perforated steel plates and nails
  1. Perforated steel plates 80×140×1.5 mm are used on both sides.
  2. On each side, along the outer edge of the plate, 2 corrugated nails 4.0x40 mm are driven in.
  3. The area of ​​the plate that can be used for driving nails.
  4. The minimum distance from the end of the wooden element must be greater than 40mm.
  5. The minimum distance from the edge of the wooden element must be greater than 28mm.
Rice. 11.08 Connecting the upper chords of the arches in the ridge using overlays made of boards or plywood
  1. Overlay 148×300 mm made of boards more than 30 mm thick or plywood more than 15 mm thick.
  2. The area of ​​the plate that can be used for driving nails.
  3. Nails 3.5×90 mm, 8 pcs. from each side.

Rice. 11.09 The joint of the lower chord of a homemade wooden triangular arch should always be located above the support. If there is no support, then breaks in the lower belt are unacceptable, and maximum length the lower belt should be less than 4.2 m Rice. 11.10 Connecting the elements of the lower chord of the arch using perforated steel plates and nails
  1. Steel perforated plates 100x300x1.5 mm are mounted on each side and centered relative to the joint.
  2. The area of ​​the plate that can be used for driving nails.
  3. The 4.0 x 40 mm corrugated nails should be placed as evenly as possible along the outer holes of the plate.
Rice. 11.11 Connecting the elements of the lower chord of the arches using bolts and one-sided lock washers with external teeth clamped between the parts being connected, as well as using washers
  1. The junction of the elements of the lower chord of the arch.
  2. Minimum distances are given in Table 11.2.
  3. The thickness of the lining and the thickness of the elements of the lower chord of the arch must be the same.
  4. Lock washers with external teeth - 2 pcs. for connection. The diameter of the lock washers is selected according to table 11.1.
  5. Bolt, 20 mm.
  6. Washer, 60×60×5 mm.
Rice. 11.12 Diagonal wind braces 23x98 are attached to each triangular arch

1. Diagonal wind connection.

Rice. 11.13 Diagonal wind braces are attached to the lower edge of the upper chords of the arch with 3 nails 2.8×75 or 3.4×95 mm

1. Attaching the diagonal wind brace to the upper chord of the structure.

Rice. 11.14 Anchoring wooden arches with perforated steel tapes
Rice. 11.15 If there are arches on the installation path chimneys or other obstacles, then the arch is shifted to the side. An additional arch is installed on the other side of the obstacle
  1. A triangular arch that should be moved to the side.
  2. Additional triangular arch.

The material was prepared by designer Vladislav Vorotyntsev based on Norwegian technology frame house construction, developed by the SINTEF Institute

At all times, buildings and structures made of wood have been popular, despite the main disadvantage of the material - its flammability. But the tree has a huge amount positive qualities, such as: availability of this material, strength, environmental friendliness, relatively low weight, ease of processing. All this makes wood construction popular today. And the fire resistance and durability of wood began to be successfully improved, impregnating the material with special compounds. With all the popularity wood construction, there was always a problem with strong fastening wooden parts designs. It is necessary to take into account that wooden building elements, as the degree of their humidity changes, constantly change their size and are prone to bending. As a result, large and long-term forces arise at the places of their connections and abutments. You also need to remember that, as a rule, based on low weight and elasticity wooden buildings, they are often built on light foundations and even without a foundation at all. And this often leads to a change in the geometry of the structure, and as a result, the emergence of all kinds of stresses at the joints of the structure. Therefore, the issue of reliable, strong connection of wooden parts (beams, beams, boards, etc.) is very important during construction.
An excellent solution to the problem of reliable connection of wooden structural elements and steel nail plates (NMP). Mass construction of wooden structures using metal toothed (nail) plates originates in North America. And currently, designs using connecting plates are widely used throughout Europe. With the help of industrially produced truss structures based on plates, you can build almost any type of roof, attic, attic spaces, skylights, etc. Roofs using nail plates are applicable in all types of structures. These are, for example, residential buildings, industrial, agricultural, sports and commercial buildings. The plates are also indispensable for the reconstruction of buildings and flat roofs. In addition to rafter structures, this technology can be used to produce wall panels, lattice frames, formwork for concrete structures, and large-span rooms made entirely of wood. The possibility of creating trusses with a span of more than 30 meters without internal supports (for example, tennis courts), which has arisen in connection with the use of connecting plates, is widely used.
The idea of ​​nail plates is simple and the efficiency is extremely high. The cost of a nail connecting plate is minimal, and the assembly time of the structure is reduced.
- this is not at all analogous to a pile of driven nails, each of which is on its own.

The shape of the teeth and their angle of inclination, arrangement in rows, guarantee strong adhesion to the tree. All teeth have a common monolithic platform-base, which eliminates the possibility of their mobility and swinging. The base platform also becomes a common, connecting basis for two interconnected structural parts. As a result, the strongest connection is ensured even when parts are put together end-to-end. For example, a beam assembled from two butt-joined wooden beams when trying to break it, it broke not in the place where it was stitched together with nail connectors, but in the monolithic part of the beam.
Galvanic coating provides additional durability to the steel nail plate.
All of the above convincingly indicates the advisability of using nail connecting plates in the construction and construction of wooden structures for any purpose.

For the most durable butt fastening of wooden elements located in the same plane (boards, beams, posts, beams, rafters and other structures), high-strength and reliable fasteners are used - (toothed). Their characteristic feature is stamping with teeth 8 or 14 mm high and 1 mm thick, which are arranged in rows on a monolithic metal platform. The bonding strength of the plate depends on the shape of the teeth and their angle of inclination.

Manufactured from high-quality sheet carbon steel 1.2 mm thick with stamping of teeth on a hydraulic press and subsequent galvanizing. The product is not subject to corrosion, has a long service life and the following benefits:

  • provides high strength and durability of connections;
  • easily withstands dynamic loads;
  • allows you to do without the use of nails and other fasteners;
  • significantly increases the speed of work.

Nail plates wholesale

The company "StalKrepezh" manufactures own production nail plates various forms and sizes for use in wooden house construction, roofing, formwork construction and other repair and finishing works. We offer it at manufacturer's prices in any quantity and product range. Our consultant managers will help you make the choice and place your order.

Description:

The nail plate is designed to connect two separate wood elements together. This method has gained wide popularity in construction frame houses due to 3 advantages:

  1. High strength while reducing costs. The prices for a nail plate are very affordable, and the joints created with their help are characterized by increased strength characteristics and resistance to mechanical damage. The plates themselves are cast from high quality carbon steel.
  2. Fast and convenient laying of communications. Using nail plates, the price of which is low, especially compared to the advantages of use, it is possible to install floors with special void corridors for installing a communication system.
  3. The installation time has been significantly reduced. If all construction and installation work has a strict time frame, then you need to buy nail plates. With their help, you will significantly speed up construction by introducing a method for remote installation of blocks and simplifying the procedure for connecting operations.

Our online store offers to buy nail plates wholesale at affordable prices with delivery to any region.

It is used for fastening the rafter part of the house, as well as for connections in frame housing construction. Does not require the use of nails. Installation using special equipment is recommended.

Characteristics:

  • Material: GP, RK - sheet steel, GPZ - galvanized sheet steel.
  • Thickness: 1.5 mm; 1.3 mm

The nail plate is used for fastening the rafter part of the house, as well as for connections in frame housing construction. It is a strip (plate) made from galvanized steel sheet with stamped nails (teeth). The production of nail plates by cold stamping on a hydraulic press allows us to obtain high-quality connecting elements. Standard insert teeth are 8 millimeters high. One nail plate can have from 2 to 16 rows of teeth.

The thickness of the nail plate is from 1 millimeter, the width can be, depending on the standard size, from 20 to 132 millimeters, and the length can be from 76 to 1250 millimeters. With the help of metal toothed connecting plates, wooden structural elements such as boards, beams, beams lying in the same plane can be connected without the use of nails, screws and other fasteners.


Why fastening can be a problem

The issue of fastening is very important due to the characteristics of wood and its “behavior” depending on weather conditions. With changes in humidity levels, wooden building elements decrease or increase in size and are often subject to bending. As a result, large and long-term “stresses” arise in the places of their connections and abutments. The reason for this may also be the construction of a light foundation or its complete absence (which is possible given the low weight and elasticity wooden structures), leading to a change in the geometry of these structures.
Using metal plate provides increased corrosion resistance of the connecting element, which favors its operation in conditions high humidity, as well as when performing external work.


Properties of nail plate

The connecting nail (toothed) plate has important advantages compared to other types of fastenings. For example, from separately driven nails, each of which is on its own.
-*Strength of bonding with wood is achieved shape of the teeth and their angle of inclination, arrangement in rows. At the junction of wooden structural elements, the nail plate forms a connection that has high strength properties that no other can compete with. fastener. These indicators have been verified by many mechanical tests of structures.

-*Common monolithic platform– the base on which all the teeth are attached eliminates the possibility of their mobility and swinging. The platform becomes a common, connecting basis for the connected parts of the structure, due to which the connection is again given the quality of strength.

allow us to provide excellent strength even when splicing wooden structural elements by butt connection.

-*Parts are attached extremely tightly. it's the same empirically proven. For example, a beam assembled using a plate from two wooden beams connected end-to-end, when exposed to a fracture, broke not at the junction of the structural elements, but in the monolithic part of the beam. Thus, the monolithic platform of the nail plate completely prevents the teeth from moving or becoming loose and becomes a reliable basis for the connecting assembly.

-*If necessary galvanic coating possible– This is a possible additional service at the request of the customer. This coating will give additional durability to the steel nail plate.

-*Metal toothed plates Install faster than traditional types of fasteners, thanks to its unique design. This will significantly save time during construction and installation work on fastening elements of rafter and sub-rafter systems.

-*Due to the possibility of manufacturing floor beams with “corridors” specially designed for these purposes this method of fastening facilitates the laying of communications(ventilation ducts).

The listed qualities of nail connecting plates have become the reason for their widespread widespread use in the construction and construction of wooden structures for any purpose. The simplicity of the design of nail plates brings exceptional strength and durability to the connection.


Experience in using nail plates

Steel nail plates have been used in Canada and the USA for more than twenty years; it was in North America that they began to be widely used in the construction of wooden structures. This fastening method is now widely used throughout Europe. Using industrially produced rafter structures based on plates, you can build almost any type of roof, attic, attic space, skylight, etc.

Roofs using nail plates are applicable in all types of structures, for example:
-residential buildings,
-industrial,
- agricultural,
-sports and commercial facilities.

In addition to rafter structures, this technology can be successfully used for:
- reconstruction of buildings and flat roofs, where plates are considered an indispensable type of fastener;
- production of panels for walls;
- production of lattice frames,
- construction of formwork for concrete structures,
- construction of long-span premises made entirely of wood.

The possibility of creating trusses with a span of more than 30 meters without internal supports (for example, tennis courts), which has arisen in connection with the use of connecting plates, is widely used. The plates can be successfully used when joining boards lengthwise.

Tooth (nail) plate is a strong, fast and economical connection for wooden structures. The distinctive advantages and properties of this fastening contribute to its increasingly widespread use in construction. wooden houses and structures in our country. The opportunity to purchase these products is becoming more and more accessible, and those interested can evaluate the convenience and quality of this fastener in practice.

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