Clamps for brick lintels. Installation of brick lintels with clamps

Horizontal jumper. The simplest type of masonry for lintels is horizontal masonry. It is no different from the rest of the facade. The main condition is that the brick of the first row must be solid. The fulfillment of this condition will ensure the beauty, completeness of the lintel from all sides, both from the facade and from below. When mounting a horizontal lintel, clamps SHG-50-40/50 and SHP-50-45/65 are used in combination with a steel masonry mesh KS-3.

Clamps for vertical masonry

Vertical jumper. The most common type of lintel masonry is vertical masonry. In this case, the brick can be both solid and hollow. Sometimes, to achieve a greater effect, the first 2 rows of masonry above the opening are performed vertically. The combination of horizontal and vertical facade masonry is one of the favorite architectural techniques. Often the laying of jumpers in one, two or three rows serves as the beginning of a whole belt of vertical masonry. A variety of vertical masonry is the laying of a lintel in one and a half bricks. The alternation of horizontal seams in the jumper creates an interesting, memorable pattern. When installing a vertical lintel, clamps SHV-50-165/10 and SHP-50-45/65 are used in combination with steel masonry mesh KS-3.

Openings of more than 2 meters are calculated individually, since hanging consoles with different projections from the wall are used for the construction of such openings.

Clamps for masonry on the edge inside

This type of jumper allows you to solve several issues: hide the insulation and make more beautiful slopes brick-thick. It is also possible to push the brick around the opening forward and add volume to the frame. When mounting a lintel with ribbed masonry, clamps CXP-50-65/155 and SKHP-50-45/65 are used in combination with steel masonry mesh KS-3. Longitudinal reinforcement with reinforcing mesh KS-3 is used under the action of horizontal and vertical loads, as well as in structures subject to seismic effects. Reinforcement of stone structures significantly increases their bearing capacity and solidity, ensures the joint operation of individual parts of buildings. Such reinforcement is necessary in the outer layers of multilayer wall structures, since they are primarily subject to atmospheric influences, wind loads and temperature changes.

Openings of more than 2 meters are calculated individually, since hanging consoles with different projections from the wall are used for the construction of such openings.

The part of the wall that spans a window or doorway is called a lintel. Our company offers BAUT brick lintels. If the load from the floors is transferred to the wall directly above the opening, load-bearing precast concrete lintels are used. In the absence of such a load, to cover openings with a width of less than 2 m, lightweight reinforced concrete or ordinary brick lintels are used in the form of masonry on high-strength mortars with reinforcing bars to support the bricks of the lower row. Instead of ordinary ones, wedge-shaped brick lintels are sometimes made, which at the same time serve as architectural decorations for the facade.

For the same purpose, with spans up to 3.5-4 m, arched brick lintels are often erected. Arched masonry is also used for building floors in buildings, such floors are called vaulted (vaults).

Ordinary lintels are a continuation of the wall masonry. They are ordinary masonry on solutions of increased strength. The tensile forces arising in the lintel masonry are perceived by the reinforcement and laid on the formwork under the lower (first) row of lintel bricks. Window and door openings can be covered with wedge-shaped lintels. Wedge-shaped brick lintels, which are a continuation of the wall, are laid out of ordinary brick with an opening width of not more than 2 m by forming wedge-shaped seams. A variety of wedge-shaped jumpers are arched. When arranging beam lintels, just as when arranging wedge-shaped lintels, the wall must be erected to the level of lintels.

All longitudinal and transverse seams when laying brick lintels must be completely filled. In case of insufficient filling of vertical joints from loads, individual bricks first shift, then the masonry is destroyed. Ordinary brick lintels are laid out in compliance with the horizontal rows, the rules for dressing ordinary masonry from a whole selected brick. For laying brick lintels, a mortar grade of at least 25 is used. The height of an ordinary lintel is 4-6 rows of masonry, the length is 50 cm more than the width of the opening.

Horizontal masonry

	Brick lintel BAUT: Horizontal brickwork The lintel consists of at least three horizontal rows of brick cladding with traditional mortar. Clamps are inserted into each vertical seam of the first row of masonry. Reinforcement is located in the horizontal seams between the first and second, second and third rows of masonry along the entire length of the lintel and beyond it in both directions. Murfor RND/Z-50.
	Brick lintel: Clamp BAUT SK 50-40 Height (mm.): 40 Wire diameter (mm.): 3 Coating: Zinc
	Height (mm.): 45 Width (mm.): 60 Wire diameter (mm.): 3 Coating: Zinc
	Width (mm.): 50 Length (m.): 3.05 Coating: Zinc

vertical masonry

	Brick lintel: Vertical masonry The lintel consists of at least three rows of brick facing masonry on a traditional mortar, the first of which is laid vertically, and the other two are laid horizontally. Clamps are inserted into every second vertical seam of the first row of masonry. In the horizontal seams between the first and second, second and third rows of masonry along the entire length of the lintel and beyond it, reinforcement is located on both sides Murfor RND/Z-50.
	Brick lintel: Clamp BAUT SK 50-170 Height(mm.): 170 Wire diameter(mm.): 3 Coating: Zinc
	Brick lintel: Clamp BAUT SU 50-45 Height (mm.): 45 Width (mm.): 60 Wire diameter(mm.): 3 Coating: Zinc
	Brick lintel: Rebar Murfor RND/Z-50 Width (mm.): 50 Length (m.): 3.05 Coating: Zinc

Vertical one and a half bricks

	Brick lintel: Vertical one and a half bricks The lintel consists of at least three rows of brick facing masonry on a traditional mortar, the first of which is laid vertically, in one and a half bricks, and the other two are laid horizontally. Clamps are inserted into every second vertical seam of the first row of masonry. In the horizontal seams between the first and second, second and third rows of masonry along the entire length of the lintel and beyond it, reinforcement is located on both sides Murfor RND/Z-50.
	Brick lintel: Clamp BAUT SK 50-270 Height (mm.): 270 Wire diameter(mm.): 3 Coating: Zinc
	Brick lintel: Clamp BAUT SU 50-45 Height (mm.): 45 Width (mm.): 60 Wire diameter(mm.): 3 Coating: Zinc
	Brick lintel: Armamura Murfor RND/Z-50 Width (mm.): 50 Length(m.): 3.05 Coating: Zinc

Laying on the edge inside

	Brick lintel: Masonry on edge inside The BAUT lintel consists of at least three rows of facing brickwork on a traditional mortar, the first of which is laid on an edge perpendicular to the load-bearing wall, and the other two are horizontal. Clamps are inserted into every second vertical seam of the first row of masonry. In the horizontal seams between the first and second, second and third rows of masonry along the entire length of the lintel and beyond it, reinforcement is located on both sides Murfor RND/Z-50.
	Brick lintel: Clamp BAUT SKK 50-65(80) Height (mm.): 65, 80 Wire diameter (mm.): 3 Coating: Zinc
	Brick lintel: Clamp BAUT SU 50-45 Height (mm.): 45 Width (mm.): 60 Wire diameter (mm.): 3 Coating: Zinc
	Brick lintel: Rebar Murfor RND/Z-50 Width (mm.): 50 Length (m.): 3.05 Coating: Zinc

INSTALLATION PROCEDURE FOR A VERTICAL BRICK JUMPER

1. Formwork construction Having brought the facing masonry to the level of the lintel, a formwork is constructed, on which the first row of bricks is laid.	2. Installation of the first row Clamps SK 50-170 are located in every second vertical seam row of masonry, i.e. for every second brick, 1 clamp.
3. Insertion of Murfor fittings The Murfor RND/Z-50 fittings are inserted into the corresponding grooves on the collars. The reinforcement should extend beyond the edges of the opening by at least 250 mm. round trip.	4. Installation of clamps SU 50-45 In the second row of masonry, in every second vertical joint, clamps SU 50-45 are located.
5. Murfor fittings in the following rows Murfor RND/Z-50 fittings are also located in the second row of masonry. In both rows, the reinforcement should extend beyond the edges of the opening by at least 250 mm. round trip. Then every 300 ..... 500 mm. Murfor RND / Z-50 reinforcement should be placed along the height of the masonry to achieve uniform load on the lintel.	6. Formwork removal The formwork is dismantled after 2 weeks.

Creating jumpers with BAUT stirrups

When creating building projects, special importance is attached to window and door openings. The easiest way to emphasize them is to highlight the jumper using brickwork, the execution of which can be completely different.

BAUT clamps for all types of masonry

To create such jumpers, there are BAUT Clamps that can be used for any type of masonry.

So, BAUT SK 50-40 clamps are used in the simplest form - horizontal masonry. Such clamps lead into vertical seams in the first row of masonry. It should be noted that this type of lintels should consist of at least 3 rows of masonry. Typically, to strengthen the rows, reinforcement between the first / second and second / third rows of masonry is mandatory. For the aesthetic completeness of the lintel, a prerequisite is that the first row should consist of solid bricks.

For vertical masonry, it is customary to use BAUT SK 50-170 and BAUT SU 50-45 clamps. the use of 2 types of clamps is justified by the fact that the vertical masonry, like the horizontal one, consists of at least 3 rows of bricks. However, if their first row is stacked vertically, then the second and third - horizontally. But the option is also possible when the first 2 are vertical, the 3rd is horizontal. So, BAUT SK 50-170 masonry accessories are used in the first vertical row, and BAUT SU 50-45 - in the second horizontal row. They fit into every second vertical seam.

The technology of laying the lintel on the edge inside differs from vertical masonry, only in that its execution must be done at a right angle to the facade. It is characteristic that the installation order is almost identical. The only difference is that you need to use other clamps - KK 50-65. For these collars, the possibility of their movement to the desired depth is characteristic.

Under the combined masonry, understand the use of alternating two halves and 1 full brick. Such a jumper always begins and ends with vertical masonry. To create such jumpers, BAUT SKK 50-170 or SKK 50-270 clamps are used.

In addition, a common type of combined masonry is one and a half bricks. This type of masonry is able to give the lining a special solemnity and volume.

It should be noted that the use of BAUT clamps, as well as the flexible connections described above, contribute to an increase in the strength of the masonry, and also prevent the appearance of delaminations and cracks on the facade, due to the uniform distribution of loads on each individual brick.

Murfor rebar is a welded structure 3 meters long, consisting of 2 parallel metal bars connected to each other by a curved third bar.

The purpose of Murfor reinforcement is to increase the strength of the masonry, especially in case of uneven loads.

Murfor fittings open up new architectural possibilities:

• unbandaged masonry;
• brick lintels;
• the ability to exclude a reinforced concrete belt under the roof;
• increasing the distance between expansion joints (or completely eliminating them);
• preventing the occurrence of cracks;
• preventing masonry delamination and / or destruction due to excessive loads, subsidence of the foundation under the influence of various natural and human factors.

Murfor fittings are easy installation, as well as the quality of the products, the module corresponding to the brick.

Application:
A solution is applied over the masonry. Reinforcement is pressed into the mortar (at a distance of at least 20 mm deep from the edges of the masonry), then covered again with mortar. The solution will level out. The next row of masonry is laid out.
When erecting masonry on an unstable base, for example, on floor panels, it is necessary to reinforce the first 4-5 rows of masonry.
The extension of the reinforcement along the length of the masonry is carried out so that the ends of the reinforcement are parallel in the solution, and not one above the other, with a run of at least 200-250 mm.

Solutions to common problems:

1. Situation: the soil under the building under construction is weak or with different physical properties.
Result: there is a danger of uneven settlement of the foundation and, as a result, cracks may appear on the facade wall.
Solution: the first 5 rows of masonry along the entire perimeter of the building are reinforced with Murfor reinforcement. Then it is recommended to reinforce the masonry every 400 ... 600 mm. in height.

2. Situation: masonry of different heights.
Result: local stresses arise in places of height difference.
Solution: Murfor rebars take over the loads and distribute them over a large area of ​​the wall.

3. Situation: the need for the construction of formwork and concreting.
Result: the presence of "cold bridges", installation is time consuming.
Solution: the traditional reinforced concrete belt can be replaced with a reinforced stone belt. Such a belt consists of 4 rows of masonry reinforced with Murfor, or 2 rows of masonry and 2 Murfor reinforcements in each row.

Specifications:

Tensile strength: min. 550 N/mm2
Yield strength: min. 500 N/mm2
Shear strength of welded joint: min. 2500 N
Thickness of a layer of a zinc covering: 70 gr./sq.m.

Reinforcement Murfor RND / Z is of the following types:

Brick is a fairly heavy material. The use of masonry mixture alone will not guarantee the durability of the building being erected. Therefore, although accessories for bricklaying are invisible to the naked eye, they are indispensable for ensuring the strength of the future building.

Brick fasteners include masonry nets, ventilation boxes, flexible connections, brick lintels and hanging brackets.

Flexible connections are made from basalt plastic, available at a price. Connect the facade and the layer of facing bricks through thermal insulation. Increase the thermal efficiency of the building and reduce the pressure on the foundation. Basalt plastic does not rust and is resistant to harmful substances.

Ventilation boxes provide circulation of air masses. They protect the building from moisture, prevent the penetration of insects and rodents, allow the walls to breathe. The box can be matched to the color of the masonry mixture.

The masonry mesh consists of intertwined steel wires. The grid is not subject to corrosion and aggressive influences from the outside. When choosing a mesh, you need to consider its diameter. Usually it is from 3 to 5 mm. Depending on the thickness of the wire, the mesh can be light or heavy.

Brick lintels are used when laying bricks over window and door openings to prevent the collapse of the lower rows under the pressure of the upper ones. The length of the reinforcement should be approximately 0.5 m longer than the length of the opening, otherwise there is a risk of wall deformation.

If it is not possible to put the masonry on the foundation, hinged facades are used. The hinged bracket system makes it possible to make clinker masonry with an insulated ventilated gap.