Reinforced concrete lintels: GOST 948-84, classification, dimensions, weight and loads

Precast concrete enterprises produce products for the construction industry. In the process of constructing residential buildings and industrial facilities, various types of standard products are used, including reinforced concrete lintels. They have high strength and are able to withstand bending loads, thanks to the reinforcement frame filled with heavy concrete. Beams are manufactured in accordance with the requirements of regulatory document 948 84. GOST classifies products by type and contains a set of technical requirements.

Concrete lintels - design and purpose

How are jumpers arranged, according to GOST requirements? They consist of the following parts:

reinforcement grid, which prevents the formation of cracks and increases strength properties;
heavy concrete, the dimensions and shape of which, after hardening, comply with the provisions of the standard;
sling elements designed for ease of transportation and ease of installation work.

The use of frost-resistant concrete allows the product to be used in northern regions at temperatures down to minus 40 degrees. Reinforced with steel reinforcement, reinforced concrete crossbars are characterized by an increased margin of safety and do not crack as a result of the application of bending loads.

Reinforced concrete crossbars are installed in the openings of buildings made of various materials:

all types of bricks;
aerated concrete blocks;
foam block building materials;
natural stone;
monolithic concrete.

It is difficult to imagine a house in which there are no windows or doors.
Reinforced lintels perform a number of serious tasks:

increase the load capacity of openings;
form a flat surface when building walls;
compensate for various types of existing loads;
close the power circuit over window and door openings;
allow you to create a support contour for installing the roof.

Regulates construction areas in which reinforced concrete lintels can be used, GOST. The dimensions and design of the products also allow them to be used in the transport sector for the arrangement of crane tracks, the construction of overpasses and the laying of tram lines.

ACCEPTANCE RULES

3.1. Jumpers should be accepted in batches in accordance with the requirements of GOST 13015.1 and this standard.

3.2. Acceptance of lintels in terms of their strength, rigidity and crack resistance, frost resistance of concrete, as well as water resistance and water absorption of concrete lintels intended for use in an environment with an aggressive degree of exposure should be carried out based on the results of periodic tests.

3.3. Acceptance of lintels in terms of concrete strength (class or grade of concrete in terms of compressive strength, transfer and tempering strength), compliance of reinforcement and embedded products with design documentation, strength of welded joints, accuracy of geometric parameters, thickness of the protective layer of concrete to the reinforcement, opening width of technological cracks, Concrete surface categories should be made based on the results of acceptance tests and control.

3.4. In cases where the inspection determines that the actual tempering strength of the concrete is lower than the required tempering strength, the lintels should be delivered to the consumer after the concrete reaches a strength corresponding to the class or grade of concrete in terms of compressive strength.

3.5. Acceptance of lintels in terms of the accuracy of geometric parameters, the thickness of the protective layer of concrete before the reinforcement, the category of the concrete surface, and the width of the opening of technological cracks should be carried out based on the results of a single-stage selective inspection.

Main varieties

According to GOST 948, beams differ in marking and are divided into the following types:

PB jumpers. GOST classifies them as timber partitions having the configuration of a regular parallelepiped with a width of 0.25 m;
products with the PP index. They are slab-like in appearance, with a minimum cross-sectional width exceeding 0.25 m;
products with an L-shaped configuration, designated by the letters PG. They have a longitudinally located ledge, which improves the connection with the ceiling elements;
façade crossbars marked PF. The design provides a quarter ledge for improved covering of openings on the street side of the building.

Depending on the magnitude of the working load, all prefabricated lintels are divided into load-bearing and non-load-bearing.
The current GOST for block lintels provides for design options with inclined end surfaces and side edges. At the same time, the dimensions of the supporting plane are slightly reduced, which does not have a significant effect on the strength characteristics.

CONTROL AND TEST METHODS

4.1. Monitoring and assessment of the strength, rigidity and crack resistance of lintels should be carried out in accordance with GOST 8829.

Load testing of lintels to control their strength, rigidity and crack resistance should be carried out when the concrete reaches a strength corresponding to its class or grade in terms of compressive strength.

4.2. The strength of concrete lintels should be determined in accordance with GOST 10180 on a series of samples made from a concrete mixture of the working composition and stored under conditions in accordance with GOST 18105.

When testing lintels using non-destructive methods, the actual transfer and tempering compressive strength of concrete should be determined by the ultrasonic method in accordance with GOST 17624 or mechanical devices in accordance with GOST 22690, as well as other methods provided for by the standards for concrete testing methods.

4.3. The frost resistance of concrete should be determined according to GOST 10060.1 - 10060.4 on a series of samples made from a concrete mixture of the working composition.

4.4. The water resistance of concrete lintels intended for use in an environment with an aggressive degree of exposure should be determined according to GOST 12730.0 and GOST 12730.5 on a series of samples made from a concrete mixture of the working composition.

4.5. The water absorption of concrete lintels intended for use in an environment with an aggressive degree of impact on reinforced concrete structures should be determined according to GOST 12730.0 and GOST 12730.3 on a series of samples made from a concrete mixture of the working composition.

4.6. Methods of control and testing of reinforcement and embedded products - according to GOST 10922.

4.7. Measurement of stresses in prestressed reinforcement, controlled at the end of tension, should be carried out in accordance with GOST 22362.

4.8. Methods of control and testing of initial raw materials used for the manufacture of jumpers must comply with established standards or technical specifications for these materials.

4.9. Dimensions, deviation from straightness, thickness of the protective layer of concrete to the reinforcement, position of embedded products, quality of concrete surfaces and appearance of lintels should be checked by the methods established by GOST 13015.0 - GOST 13015.4.

Marking of reinforced concrete lintels

The manufacturer of reinforced concrete beams applies markings at the end of each product that meet the requirements of the regulatory document. It is a special designation in the form of an alphanumeric set.

The marking contains the following data:

profile size corresponding to certain dimensions;
designation of reinforced concrete products corresponding to the classification;
length, rounded to the nearest whole number of decimeters;
the value of the calculated force, which is indicated in kN/m;
type of reinforcing bars used for stressed beams;
information about fastening elements and rigging eyes;
Possibility of using structural beams in special conditions.

The letter index in the designation contains additional information about the availability of outlets for anchor fastening and sling eyes:

the presence of protruding reinforcement intended for fastening balcony slabs is indicated by the letter “a”;
The embedded elements or lifting eyes provided for by the beam design are designated by the letter “b”.

The marking and overall dimensions of reinforced concrete structures are specified by GOST 948-84.
The marking provides for special designation in capital letters for the possibility of prolonged use of reinforced concrete crossbars under special operating conditions:

products for seismic zones contain the index “C”;
beams for aggressive environments are designated by the letter “P”.

Let's look at how the marking of one of the variants of the reinforced concrete crossbar 5PB30-27 AtIVS-a is deciphered:

5 – type of reinforced concrete profile with dimensions 22x25 cm;
PB - designation of a beam of a timber structure;
30 – product length in decimeters, actual dimensions are 2980 mm;
27 – the value of the design force, indicated in kN/m, rounded to the nearest whole number;
AtIVС is an abbreviation for reinforcing bars concreted in a stressed state;
a – index indicating the presence of protruding rods for fixing the beam.

When deciding on the possibility of using reinforced concrete beams to solve specific problems, you must be able to decipher the markings. It contains complete information about the operational characteristics and design features of the product.

LABELING, STORAGE AND TRANSPORTATION

5.1. Marking of jumpers is in accordance with GOST 13015.2. Markings and signs should be applied to the end or top sides of each jumper. On the end side of jumpers that have sling holes (instead of mounting loops), the installation mark “Top of the product” must be applied according to GOST 13015.2.

It is allowed, by agreement between the manufacturer and the consumer and the design organization - the author of the project for a particular building, instead of marks, to apply on the lintels their abbreviated symbols adopted in the design documentation of a particular building.

5.2. Requirements for the document on the quality of jumpers supplied to the consumer are in accordance with GOST 13015.3.

Additionally, the document on the quality of lintels must indicate the grade of concrete for frost resistance, and for lintels intended for use in an environment with an aggressive degree of exposure, the water resistance and water absorption of concrete (if these indicators are specified in the order for the production of lintels).

5.3. Jumpers should be transported and stored in accordance with the requirements of GOST 13015.4 and this standard.

5.3.1. Jumpers should be transported and stored in containers sorted by brand and laid in working position.

It is allowed to transport and store jumpers stacked without containers.

5.3.2. Pads and gaskets between rows of lintels must be at least 25 mm thick and located vertically, one above the other, at a distance of 200 - 250 mm from the end of the lintel.

5.3.3. The height of the stack of lintels should be no more than 2 m.

5.3.4. Lifting, loading and unloading of jumpers should be carried out in packages with a crane using special lifting devices, and individual jumpers should be grabbed by the mounting loops or the provided sling holes.

5.3.5. When transporting, the jumpers should be placed in vehicles in the working position, with the longitudinal axis in the direction of movement of the vehicle.

Concrete lintels - dimensions and weight of products

The dimensions of reinforced concrete lintels for windows and doors, as well as other types of beams, are regulated by the standard. The rounded dimensions of products marked PB are:

length 1–6 m;
width – 1.2–2.5 dm;
height – 0.65–5.85 dm.

The assortment is so diverse that it makes no sense to list all the typical dimensions.
Beams with the designation PP have the following parameters:

length – 1.1–3 m;
width – 3.8–5.1 dm;
height – 0.65–2.2 dm.

Products of the PG brand are characterized by the following sizes:

length 1.5–6 m;
width equal to 2.5–5.1 dm;
height – 2.9–5.85 cm.

The dimensions of the PF crossbars, differing in the standard width of 2.5 dm, are:

length – 0.8–4.3 m;
height – 1.4–2.9 dm.

The weight of the beams depends on the dimensions and ranges from 20 kg to 2.5 tons.

type PB - indicated in the drawing. 1 and in table. 1;

» PP - » » » 2 and in table. 2;

» PG - » » » 3 and in table. 3;

» PF - » » » 4 and in table. 4.

Table 1

────────────┬────────────────┬───────────────────┬────────────┬───────────────┬──────┬────────────

OKP code │Jumper brand │ Main dimensions │ Design │ Flow │Weight │Designation

│ │ jumpers, mm │ load, │ materials │re- │ release

│ │ │ kN/m │ │slivers │ typical

│ ├─────┬──────┬──────┤ (kgf/m) ├────────┬────── ┤(right-│ design

│ │Length│Width│Height│ │ Concrete, │Steel,│voch- │documentation

│ │ l │ b │ h │ │ m3 │ kg │naya), │ series

│ │ │ │ │ │ │ │kg │ 1.038.1-1

────────────┴────────────────┴─────┴──────┴──────┴────────────┴────────┴──────┴──────┴────────────

Jumpers with non-stressed reinforcement

58 2821 0553│1PB10-1 │1030 │ 120 │ 65 │ 0.98 (100) │ 0.008 │ 0.31│ 20 │ Issue 1

58 2821 0554│1PB13-1 │1290 │ │ │ │ 0.010 │ 0.41│ 25 │

58 2821 0555│1PB16-1 │1550 │ │ │ │ 0.012 │ 0.48│ 30 │

────────────┼────────────────┼─────┼──────┼──────┤ ├────────┼──────┼──────┤

58 2821 0556│2PB10-1 │1030 │ 120 │ 140 │ │ 0.017 │ 0.24│ 43 │

58 2821 0557│2PB10-1-p │ │ │ │ │ │ 0.50│ │

────────────┼────────────────┼─────┤ │ │ ├────────┼──────┼──────┤

58 2821 0558│2PB13-1 │1290 │ │ │ │ 0.022 │ 0.31│ 54 │

58 2821 0559│2PB13-1-p │ │ │ │ │ │ 0.57│ │

────────────┼────────────────┼─────┤ │ ├────────────┼────────┼──────┼──────┤

58 2821 0560│2PB16-2 │1550 │ │ │ 1.96 (200) │ 0.026 │ 0.53│ 65 │

58 2821 0561│2PB16-2-p │ │ │ │ │ │ 0.79│ │

────────────┼────────────────┼─────┤ │ │ ├────────┼──────┼──────┤

58 2821 0562│2PB17-2 │1680 │ │ │ │ 0.028 │ 0.57│ 71 │

58 2821 0563│2PB17-2-p │ │ │ │ │ │ 0.83│ │

58 2821 0564│2PB19-3 │1940 │ │ │ 2.94 (300) │ 0.033 │ 0.85│ 81 │

58 2821 0565│2PB19-3-p │ │ │ │ │ │ 1.11│ │

────────────┼────────────────┼─────┤ │ │ ├────────┼──────┼──────┤

58 2821 0566│2PB22-3 │2200 │ │ │ │ 0.037 │ 1.18│ 92 │

58 2821 0567│2PB22-3-p │ │ │ │ │ │ 1.44│ │

────────────┼────────────────┼─────┤ │ │ ├────────┼──────┼──────┤

58 2821 0568│2PB25-3 │2460 │ │ │ │ 0.041 │ 1.85│ 103 │

58 2821 0569│2PB25-3-p │ │ │ │ │ │ 2.11│ │

58 2821 0570│2PB26-4 │2590 │ │ │ 3.92 (400) │ 0.044 │ 2.40│ 109 │

58 2821 0571│2PB26-4-p │ │ │ │ │ │ 2.66│ │

────────────┼────────────────┼─────┤ │ │ ├────────┼──────┼──────┤

58 2821 0572│2PB29-4 │2850 │ │ │ │ 0.048 │ 3.06│ 120 │

58 2821 0573│2PB29-4-p │ │ │ │ │ │ 3.32│ │

────────────┼────────────────┼─────┤ │ │ ├────────┼──────┼──────┤

58 2821 0574│2PB30-4 │2980 │ │ │ │ 0.050 │ 3.19│ 125 │

58 2821 0575│2PB30-4-p │ │ │ │ │ │ 3.45│ │

────────────┼────────────────┼─────┼──────┼──────┼────────────┼────────┼──────┼──────┤

58 2821 0576│3PB13-37 │1290 │ 120 │ 220 │37.27 (3800)│ 0.034 │ 1.74│ 85 │

58 2821 0577│3PB13-37-p │ │ │ │ │ │ 2.06│ │

────────────┼────────────────┼─────┤ │ │ ├────────┼──────┼──────┤

58 2821 0578│3PB16-37 │1550 │ │ │ │ 0.041 │ 2.94│ 102 │

58 2821 0579│3ПБ16-37-п │ │ │ │ │ │ 3.26│ │

────────────┼────────────────┼─────┤ │ │ ├────────┼──────┼──────┤

58 2821 0580│3PB18-37 │1810 │ │ │ │ 0.048 │ 3.88│ 119 │

58 2821 0581│3PB18-37-p │ │ │ │ │ │ 4.20│ │

58 2821 0582│3PB18-8 │1810 │ │ │ 7.85 (800) │ 0.048 │ 1.18│ 119 │

58 2821 0583│3PB18-8-p │ │ │ │ │ │ 1.50│ │

────────────┼────────────────┼─────┤ │ │ ├────────┼──────┼──────┤

58 2821 0584│3PB21-8 │2070 │ │ │ │ 0.055 │ 1.41│ 137 │

58 2821 0585│3PB21-8-p │ │ │ │ │ │ 1.73│ │

────────────┼────────────────┼─────┤ │ │ ├────────┼──────┼──────┤

58 2821 0586│3PB25-8 │2460 │ │ │ │ 0.065 │ 2.10│ 162 │

58 2821 0587│3PB25-8-p │ │ │ │ │ │ 2.42│ │

────────────┼────────────────┼─────┤ │ │ ├────────┼──────┼──────┤

58 2821 0588│3PB27-8 │2720 │ │ │ │ 0.072 │ 3.22│ 180 │

58 2821 0589│3PB27-8-p │ │ │ │ │ │ 3.54│ │

58 2821 0590│3PB30-8 │2980 │ │ │ 7.85 (800) │ 0.079 │ 3.54│ 197 │

58 2821 0591│3PB30-8-p │ │ │ │ │ │ 3.86│ │

58 2821 0592│3PB34-4 │3370 │ │ │ 3.92 (400) │ 0.089 │ 2.73│ 222 │

58 2821 0593│3PB34-4-p │ │ │ │ │ │ 3.31│ │

────────────┼────────────────┼─────┤ │ │ ├────────┼──────┼──────┤

58 2821 0594│3PB36-4 │3630 │ │ │ │ 0.096 │ 4.10│ 240 │

58 2821 0595│3PB36-4-p │ │ │ │ │ │ 4.68│ │

58 2821 0596│3PB39-8 │3890 │ │ │ 7.85 (800) │ 0.103 │ 10.13│ 257 │

58 2821 0597│3PB39-8-p │ │ │ │ │ │ 10.71│ │

58 2821 0598│4PB30-4 │2980 │ 120 │ 290 │ 3.92 (400) │ 0.104 │ 1.85│ 259 │

58 2821 0599│4PB30-4-p │ │ │ │ │ │ 2.49│ │

58 2821 0600│4PB44-8 │4410 │ │ │ 7.85 (800) │ 0.154 │ 11.88│ 385 │

58 2821 0601│4PB44-8-p │ │ │ │ │ │ 12.52│ │

────────────┼────────────────┼─────┤ │ │ ├────────┼──────┼──────┤

58 2821 0602│4PB48-8 │4800 │ │ │ │ 0.167 │ 15.12│ 418 │

58 2821 0603│4PB48-8-p │ │ │ │ │ │ 15.76│ │

────────────┼────────────────┼─────┤ │ │ ├────────┼──────┼──────┤

58 2821 0604│4PB60-8 │5960 │ │ │ │ 0.207 │ 29.20│ 519 │

58 2821 0605│4PB60-8-p │ │ │ │ │ │ 29.84│ │

58 2821 0606│5PB18-27 │1810 │ 250 │ 220 │27.46 (2800)│ 0.100 │ 3.76│ 250 │

58 2821 0607│5PB18-27-p │ │ │ │ │ │ 4.34│ │

────────────┼────────────────┼─────┤ │ │ ├────────┼──────┼──────┤

58 2821 0608│5PB21-27 │2070 │ │ │ │ 0.114 │ 5.48│ 285 │

58 2821 0609│5PB21-27-p │ │ │ │ │ │ 6.06│ │

58 2821 0610│5PB21-27-a │ │ │ │ │ │ 8.75│ │

58 2821 0611│5PB21-27-ap │ │ │ │ │ │ 9.33│ │

58 2821 0612│5PB25-27 │2460 │ │ │27.46 (2800)│ 0.135 │ 8.48│ 338 │

58 2821 0613│5PB25-27-p │ │ │ │ │ │ 9.06│ │

58 2821 0614│5PB25-27-a │ │ │ │ │ │ 11.75│ │

58 2821 0615│5PB25-27-ap │ │ │ │ │ │ 12.33│ │

────────────┼────────────────┼─────┤ │ │ ├────────┼──────┼──────┤

58 2821 0616│5PB27-27 │2720 │ │ │ │ 0.150 │ 11.91│ 375 │

58 2821 0617│5PB27-27-p │ │ │ │ │ │ 12.49│ │

58 2821 0618│5PB27-27-a │ │ │ │ │ │ 15.18│ │

58 2821 0619│5PB27-27-ap │ │ │ │ │ │ 15.76│ │

────────────┼────────────────┼─────┤ │ │ ├────────┼──────┼──────┤

58 2821 0620│5PB30-27 │2980 │ │ │ │ 0.164 │ 19.44│ 410 │

58 2821 0621│5PB30-27-p │ │ │ │ │ │ 20.02│ │

58 2821 0622│5PB30-27-a │ │ │ │ │ │ 22.71│ │

58 2821 0623│5PB30-27-ap │ │ │ │ │ │ 23.29│ │

────────────┼────────────────┼─────┤ │ │ ├────────┼──────┼──────┤

58 2821 0624│5PB31-27 │3110 │ │ │ │ 0.171 │ 22.84│ 428 │

58 2821 0625│5PB31-27-p │ │ │ │ │ │ 23.42│ │

58 2821 0626│5PB25-37 │2460 │ │ │37.27 (3800)│ 0.135 │ 11.04│ 338 │

58 2821 0627│5PB25-37-p │ │ │ │ │ │ 11.62│ │

────────────┼────────────────┼─────┤ │ │ ├────────┼──────┼──────┤

58 2821 0628│5PB27-37 │2720 │ │ │ │ 0.150 │ 20.34│ 375 │

58 2821 0629│5PB27-37-p │ │ │ │ │ │ 20.92│ │

────────────┼────────────────┼─────┤ │ │ ├────────┼──────┼──────┤

58 2821 0630│5PB30-37 │2980 │ │ │ │ 0.164 │ 27.50│ 410 │

58 2821 0631│5PB30-37-p │ │ │ │ │ │ 28.08│ │

58 2821 0632│5PB34-20 │3370 │ │ │19.61 (2000)│ 0.185 │ 22.28│ 463 │

58 2821 0633│5PB34-20-p │ │ │ │ │ │ 22.86│ │

58 2821 0634│5PB36-20 │3630 │ 250 │ 220 │19.61 (2000)│ 0.200 │ 28.31│ 500 │

58 2821 0635│5PB36-20-p │ │ │ │ │ │ 28.89│ │

────────────┼────────────────┼─────┼──────┼──────┼────────────┼────────┼──────┼──────┼───────────

58 2821 0636│6PB35-37 │3500 │ 250 │ 290 │37.27 (3800)│ 0.254 │ 43.70│ 634 │ Issue 12

58 2821 0637│7PB60-52 │5950 │ 250 │ 585 │51.58 (5260)│ 0.870 │103.80│ 2175 │

Jumpers with prestressed reinforcement class At-V

58 2811 0136│5PB21-27 AtV │2070 │ 250 │ 220 │27.46 (2800)│ 0.114 │ 4.92 │ 285 │ Issue 8

58 2811 0137│5PB21-27 AtV-a │ │ │ │ │ │ 8.19 │ │

────────────┼────────────────┼─────┤ │ │ ├────────┼──────┼──────┤

58 2811 0138│5PB25-27 AtV │2460 │ │ │ │ 0.135 │ 5.80 │ 338 │

58 2811 0139│5PB25-27 AtV-a │ │ │ │ │ │ 9.07 │ │

────────────┼────────────────┤ │ │ ├────────────┤ ├──────┤ │

58 2811 0140│5PB25-37 AtV │ │ │ │37.27 (3800)│ │ 7.12 │ │

────────────┼────────────────┼─────┤ │ │ ├────────┼──────┼──────┤

58 2811 0141│5PB27-37 AtV │2720 │ │ │ │ 0.150 │ 9.58 │ 375 │

────────────┼────────────────┤ │ │ ├────────────┤ ├──────┤ │

58 2811 0142│5PB27-27 AtV │ │ │ │27.46 (2800)│ │ 7.84 │ │

58 2811 0143│5PB27-27 AtV-a │ │ │ │ │ │11.11 │ │

────────────┼────────────────┼─────┤ │ │ ├────────┼──────┼──────┤

58 2811 0144│5PB30-27 AtV │2980 │ │ │ │ 0.164 │10.34 │ 410 │

58 2811 0145│5PB30-27 AtV-a │ │ │ │ │ │13.61 │ │

────────────┼────────────────┤ │ │ ├────────────┤ ├──────┤ │

58 2811 0146│5PB30-37 AtV │ │ │ │37.27 (3800)│ │16.44 │ │

58 2811 0147│5PB31-27 AtV │3110 │ │ │27.46 (2800)│ 0.171 │10.82 │ 428 │

58 2811 0148│5PB34-20 AtV │3370 │ │ │19.61 (2000)│ 0.185 │ 9.46 │ 463 │

58 2811 0149│5PB36-20 AtV │3630 │ │ │ │ 0.200 │12.54 │ 500 │

Jumpers with prestressed reinforcement class At-IVС

58 2811 0121│5PB21-27 AtIVS │2070 │ 250 │ 220 │27.46 (2800)│ 0.114 │ 4.92 │ 285 │ Issue 9

58 2811 0122│5PB21-27 AtIVS-a│ │ │ │ │ │ 8.19 │ │

────────────┼────────────────┼─────┤ │ │ ├────────┼──────┼──────┤

58 2811 0123│5PB25-27 AtIVS │2460 │ │ │ │ 0.135 │ 7.12 │ 338 │

58 2811 0124│5PB25-27 AtIVS-a│ │ │ │ │ │10.39 │ │

────────────┼────────────────┤ │ │ ├────────────┤ ├──────┤ │

58 2811 0125│5PB25-37 AtIVS │ │ │ │37.27 (3800)│ │ 8.70 │ │

────────────┼────────────────┼─────┤ │ │ ├────────┼──────┼──────┤

58 2811 0126│5PB27-37 AtIVS │2720 │ │ │ │ 0.150 │11.58 │ 375 │

────────────┼────────────────┤ │ │ ├────────────┤ ├──────┤ │

58 2811 0127│5PB27-27 AtIVS │ │ │ │27.46 (2800)│ │ 7.84 │ │

58 2811 0128│5PB27-27 AtIVS-a│ │ │ │ │ │11.11 │ │

────────────┼────────────────┼─────┤ │ │ ├────────┼──────┼──────┤

58 2811 0129│5PB30-27 AtIVS │2980 │ │ │ │ 0.164 │12.54 │ 410 │

58 2811 0130│5PB30-27 AtIVS-a│ │ │ │ │ │15.81 │ │

────────────┼────────────────┤ │ │ ├────────────┤ ├──────┤ │

58 2811 0131│5PB30-37 AtIVS │ │ │ │37.27 (3800)│ │16.44 │ │

58 2811 0132│5PB31-27 AtIVS │3110 │ │ │27.46 (2800)│ 0.171 │13.12 │ 428 │

58 2811 0133│5PB34-20 AtIVS │3370 │ │ │19.61 (2000)│ 0.185 │11.62 │ 463 │

58 2811 0134│5PB36-20 AtIVS │3630 │ │ │ │ 0.200 │15.24 │ 500 │

table 2

────────────┬──────────────┬───────────────────┬────────────┬───────────────┬──────┬────────────

OKP code │ Brand │ Main dimensions │ Estimated │ Consumption │Weight │Designation

│ jumpers │ jumpers, mm │ load, │ materials │over- │ release

│ │ │ kN/m │ │slivers │ typical

│ │ │ (kgf/m) │ │(right-│ design

│ ├─────┬──────┬──────┥ │documentation

│ │Length│Width│Height│ │ Concrete, │Steel,│naya), │ series

│ │ l │ b │ h │ │ m3 │ kg │kg │ 1.038.1-1

────────────┴──────────────┴─────┴──────┴──────┴────────────┴────────┴──────┴──────┴────────────

Jumpers with non-stressed reinforcement

58 2821 0638│1PP12-3 │ 1160│ 380 │ 65 │ 2.94 (300) │ 0.029 │ 0.71 │ 72 │ Issue 2

────────────┼──────────────┼─────┼──────┼──────┼────────────┼────────┼──────┼──────┤

58 2821 0639│2PP14-4 │ 1420│ 380 │ 140 │ 3.92 (400) │ 0.076 │ 1.43 │ 189 │

────────────┼──────────────┼─────┤ │ ├────────────┼────────┼──────┼──────┤

58 2821 0640│2PP17-5 │ 1680│ │ │ 4.90 (500) │ 0.089 │ 1.80 │ 223 │

58 2821 0641│2PP18-5 │ 1810│ │ │ │ 0.096 │ 2.23 │ 241 │

58 2821 0642│2PP21-6 │ 2070│ │ │ 5.88 (600) │ 0.110 │ 2.91 │ 275 │

58 2821 0643│2PP23-7 │ 2330│ │ │ 6.86 (700) │ 0.124 │ 3.90 │ 310 │

58 2821 0644│2PP25-8 │ 2460│ │ │ 7.85 (800) │ 0.131 │ 4.63 │ 327 │

58 2821 0645│3PP14-71 │ 1420│ 380 │ 220 │70.61 (7200)│ 0.119 │ 4.96 │ 297 │

58 2821 0646│3PP16-71 │ 1550│ │ │ │ 0.130 │ 5.16 │ 325 │

58 2821 0647│3PP18-71 │ 1810│ │ │ │ 0.151 │ 9.56 │ 378 │

58 2821 0648│3PP21-71 │ 2070│ │ │ │ 0.173 │13.82 │ 433 │

58 2821 0649│3PP27-71 │ 2720│ │ │ │ 0.227 │35.82 │ 568 │

58 2821 0650│3PP30-10 │ 2980│ │ │ 9.81 (1000)│ 0.249 │ 7.29 │ 623 │

58 2821 0651│4PP12-4 │ 1160│ 510 │ 65 │ 3.92 (400) │ 0.038 │ 0.98 │ 95 │

58 2821 0652│5PP14-5 │ 1420│ 510 │ 140 │ 4.90 (500) │ 0.101 │ 2.08 │ 253 │

58 2821 0653│5PP17-6 │ 1680│ │ │ 5.88 (600) │ 0.120 │ 2.26 │ 300 │

58 2821 0654│5PP23-10 │ 2330│ │ │ 9.81 (1000)│ 0.166 │ 5.68 │ 416 │

58 2821 0655│6PP30-13 │ 2980│ 510 │ 220 │12.75 (1300)│ 0.334 │ 9.66 │ 835 │

Jumpers with prestressed reinforcement At-V

58 2811 0160│3PP14-71 AtV │ 1420│ 380 │ 220 │70.61 (7200)│ 0.119 │ 3.78 │ 297 │ Issue 8

58 2811 0161│3PP16-71 AtV │ 1550│ │ │ │ 0.130 │ 4.06 │ 325 │

58 2811 0162│3PP18-71 AtV │ 1810│ │ │ │ 0.151 │ 5.76 │ 378 │

58 2811 0163│3PP21-71 AtV │ 2070│ │ │ │ 0.173 │ 8.36 │ 433 │

58 2811 0164│3PP27-71 AtV │ 2720│ │ │ │ 0.227 │21.51 │ 568 │

58 2811 0165│6PP14-72 AtV │ 1420│ 510 │ 220 │71.59 (7300)│ 0.159 │ 4.82 │ 398 │

58 2811 0166│6PP16-72 AtV │ 1550│ │ │ │ 0.174 │ 5.18 │ 435 │

58 2811 0167│6PP18-72 AtV │ 1810│ │ │ │ 0.203 │ 5.95 │ 508 │

58 2811 0168│6PP21-72 AtV │ 2070│ │ │ │ 0.232 │ 8.62 │ 581 │

58 2811 0169│6PP27-72 AtV │ 2720│ │ │ │ 0.305 │17.52 │ 763 │

Jumpers with prestressed reinforcement class At-IVС

58 2811 0150│3PP14-71 AtIVS│ 1420│ 380 │ 220 │70.61 (7200)│ 0.119 │ 3.78 │ 297 │ Issue 9

58 2811 0151│3PP16-71 AtIVS│ 1550│ │ │ │ 0.130 │ 4.06 │ 325 │

58 2811 0152│3PP18-71 AtIVS│ 1810│ │ │ │ 0.151 │ 5.76 │ 378 │

58 2811 0153│3PP21-71 AtIVS│ 2070│ │ │ │ 0.173 │ 8.36 │ 433 │

58 2811 0154│3PP27-71 AtIVS│ 2720│ │ │ │ 0.227 │24.93 │ 568 │

58 2811 0155│6PP14-72 AtIVS│ 1420│ 510 │ 220 │71.59 (7300)│ 0.159 │ 4.82 │ 398 │

58 2811 0156│6PP16-72 AtIVS│ 1550│ │ │ │ 0.174 │ 5.18 │ 435 │

58 2811 0157│6PP18-72 AtIVS│ 1810│ │ │ │ 0.203 │ 5.95 │ 508 │

58 2811 0158│6PP21-72 AtIVS│ 2070│ │ │ │ 0.232 │ 8.62 │ 581 │

58 2811 0159│6PP27-72 AtIVS│ 2720│ │ │ │ 0.305 │20.94 │ 763 │

Table 3

────────────┬────────┬─────────────────────────────┬────────────┬──────────────┬──────┬─────────────

OKP code │Brand │ Main dimensions │ Estimated │ Consumption │Weight │ Designation

│over- │ jumpers, mm │ load, │ materials │over- │ release

│slivers ├─────┬──────┬───────┬────────┤ kN/m │ │slivers │ typical

│ │Length│Width│Height │Height │ (kgf/m) │ │(right-│ design

│ │ l │ b │ h │even- │ ├──────┬───────┤voch- │ documentation

│ │ │ │ │vert h │ │Concrete,│Steel,│nay), │ series

│ │ │ │ │ l│ │ m3 │ kg │kg │ 1.038.1-1

────────────┼────────┼─────┼──────┼───────┼────────┼────────────┼──────┼───────┼──────┼─────────────

58 2821 0656│1PG44-8 │ 4410│ 250 │ 290 │ 220 │ 7.85 (800) │0.194 │ 14.07 │ 484 │ Issue 3

58 2821 0657│1PG48-8 │ 4800│ │ │ │ │0.211 │ 17.15 │ 527 │

────────────┼────────┼─────┼──────┼───────┼────────┼────────────┼──────┼───────┼──────┤

58 2821 0658│2PG39-31│ 3890│ 250 │ 440 │ 220 │31.38 (3200)│0.317 │ 32.02 │ 792 │

58 2821 0659│2PG42-31│ 4150│ │ │ │ │0.338 │ 42.99 │ 845 │

58 2821 0660│2PG44-31│ 4410│ │ │ │ │0.359 │ 51.81 │ 897 │

58 2821 0661│2PG48-31│ 4800│ │ │ │ │0.391 │ 69.59 │ 977 │

────────────┼────────┼─────┼──────┼───────┼────────┼────────────┼──────┼───────┼──────┼────────────

58 2821 0662│3PG60-73│ 5950│ 380 │ 585 │ 435 │72.57 (7400)│0.986 │165.70 │ 2465 │ Issue 12

58 2821 0663│4PG30-40│ 2980│ 380 │ 290 │ 70 │40.21 (4100)│0.301 │ 23.83 │ 753 │ Issue 3

────────────┼────────┼─────┼──────┼───────┼────────┤ ├──────┼───────┼──────┤

58 2821 0664│5PG16-40│ 1550│ 380 │ 290 │ 140 │ │0.143 │ 4.81 │ 357 │

58 2821 0665│5PG26-40│ 2590│ │ │ │ │0.238 │ 17.06 │ 596 │

────────────┼────────┼─────┤ │ │ ├────────────┼──────┼───────┼──────┼────────────

58 2821 0666│5PG35-17│ 3500│ │ │ │16.57 (1690)│0.322 │ 23.40 │ 805 │ Issue 12

58 2821 0667│5PG35-37│ │ │ │ │37.27 (3800)│ │ 46.70 │ │

58 2821 0668│6PG44-40│ 4410│ 380 │ 440 │ 220 │40.21 (4100)│0.611 │ 58.38 │ 1528 │ Issue 3

58 2821 0669│6PG60-31│ 5960│ │ │ │31.38 (3200)│0.826 │120.28 │ 2065 │

58 2821 0670│7PG35-23│ 3500│ 510 │ 290 │ 140 │22.95 (2340)│0.454 │ 32.60 │ 1135 │ Issue 12

58 2821 0671│7PG35-52│ │ │ │ │51.58 (5260)│ │ 60.80 │ │

58 2821 0672│8PG60-40│ 5960│ 510 │ 440 │ 220 │40.21 (4100)│1.167 │149.44 │ 2917 │ Issue 3

Table 4

────────────┬─────────┬───────────────────────────┬────────────┬─────────────┬──────┬────────────

OKP code │Pe-grade │ Main dimensions │ Estimated │ Consumption │Weight │Designation

│lintels │ lintels, mm │ load, │ materials │re- │ release

│ ├─────┬──────┬──────┬───────┤ kN/m │ │slivers │ typical

│ │Length│Height│Height│Length │ (kgf/m) │ │(right-│ design

│ │ l │ h │support│ ├──────┬──────┤voch- │documentation

│ │ │ │soldering│zone a │ │Concrete,│Steel,│stained), │ series

│ │ │ │parts │ │ │ m3 │ kg │kg │ 1.038.1-1

│ │ │ │h │ │ │ │ │ │

│ │ │ │ 1 │ │ │ │ │ │

────────────┼─────────┼─────┼──────┼──────┼───────┼────────────┼──────┼──────┼──────┼────────────

58 2821 0673│1PF8-2 │ 770│ 140 │ 70 │ 130 │ 1.96 (200) │0.018 │ 0.29 │ 45 │ Issue 6

58 2821 0674│1PF9-2 │ 900│ │ │ │ │0.021 │ 0.36 │ 53 │

58 2821 0675│1PF10-2 │ 1030│ │ │ │ │0.024 │ 0.42 │ 60 │

────────────┼─────────┼─────┤ │ │ ├────────────┼──────┼──────┼──────┤

58 2821 0676│1PF13-3 │ 1310│ │ │ │ 2.94 (300) │0.032 │ 0.61 │ 80 │

58 2821 0677│1PF14-4 │ 1420│ │ │ │ 3.92 (400) │0.034 │ 0.67 │ 85 │

58 2821 0678│1PF16-5 │ 1550│ │ │ │ 4.90 (500) │0.038 │ 0.82 │ 95 │

58 2821 0679│1PF17-5 │ 1680│ │ │ │ │0.041 │ 0.98 │ 103 │

58 2821 0680│1PF19-6 │ 1940│ │ │ │ 5.88 (600) │0.048 │ 1.78 │ 120 │

────────────┼─────────┼─────┼──────┼──────┼───────┼────────────┼──────┼──────┼──────┤

58 2821 0681│2PF22-8 │ 2200│ 220 │ 70 │ 195 │ 7.85 (800) │0.075 │ 3.33 │ 188 │

58 2821 0682│2PF23-8 │ 2330│ │ │ │ │0.079 │ 3.85 │ 198 │

58 2821 0683│2PF25-8 │ 2460│ │ │ │ │0.084 │ 4.09 │ 210 │

58 2821 0684│2PF30-8 │ 2980│ │ │ │ │0.102 │ 6.04 │ 255 │

58 2821 0685│2PF22-12 │ 2200│ │ │ │11.77 (1200)│0.075 │ 4.71 │ 188 │

58 2821 0686│2PF23-12 │ 2330│ │ │ │ │0.079 │ 5.00 │ 198 │

58 2821 0687│2PF25-12 │ 2460│ │ │ │ │0.084 │ 5.59 │ 210 │

58 2821 0688│2PF30-12 │ 2980│ │ │ │ │0.102 │ 9.01 │ 255 │

58 2821 0689│3PF40-10 │ 4020│ 290 │ 70 │ 260 │ 9.81 (1000)│0.172 │11.89 │ 430 │

58 2821 0690│3PF43-10 │ 4280│ │ │ │ │0.183 │13.67 │ 458 │

1.3. The shape, dimensions and material consumption indicators (concrete and steel consumption) of lintels for walls made of bricks 88 mm thick must correspond to:

type PB - indicated in the drawing. 1 and in table. 5;

» PP - » » » 2 and in table. 6;

» PF - » » » 4 and in table. 7.

Table 5

────────────┬─────────────────┬───────────────────┬────────────┬─────────────┬──────┬────────────

OKP code │ Jumper brand │ Main dimensions │ Design │ Flow rate │Weight │Designation

│ │ jumpers, mm │ load, │ materials │re- │ release

│ │ │ kN/m │ │slivers │ typical

│ ├─────┬──────┬──────┤ (kgf/m) ├──────┬──────┤ (right -│ design

│ │Length│Width│Height│ │Concrete,│Steel,│voch- │documentation

│ │ l │ b │ h │ │ m3 │ kg │naya), │ series

│ │ │ │ │ │ │ │kg │ 1.038.1-1

────────────┴─────────────────┴─────┴──────┴──────┴────────────┴──────┴──────┴──────┴────────────

Jumpers with non-stressed reinforcement

58 2821 0691│8PB10-1 │ 1030│ 120 │ 90 │ 0.98 (100) │ 0.011│ 0.35 │ 28 │ Issue 4

58 2821 0692│8PB13-1 │ 1290│ │ │ │ 0.014│ 0.46 │ 35 │

58 2821 0693│8PB16-1 │ 1550│ │ │ │ 0.017│ 0.54 │ 42 │

────────────┼─────────────────┼─────┤ │ ├────────────┼──────┼──────┼──────┤

58 2821 0694│8PB17-2 │ 1680│ │ │ 1.96 (200) │ 0.018│ 0.75 │ 45 │

58 2821 0695│8PB19-3 │ 1940│ │ │ 2.94 (300) │ 0.021│ 1.16 │ 52 │

────────────┼─────────────────┼─────┼──────┼──────┼────────────┼──────┼──────┼──────┤

58 2821 0696│9PB13-37 │ 1290│ 120 │ 190 │37.27 (3800)│ 0.029│ 1.92 │ 74 │

58 2821 0697│9PB13-37-p │ │ │ │ │ │ 2.24 │ │

────────────┼─────────────────┼─────┤ │ │ ├──────┼──────┼──────┤

58 2821 0698│9PB16-37 │ 1550│ │ │ │ 0.035│ 3.00 │ 88 │

58 2821 0699│9ПБ16-37-п │ │ │ │ │ │ 3.32 │ │

────────────┼─────────────────┼─────┤ │ │ ├──────┼──────┼──────┤

58 2821 0700│9PB18-37 │ 1810│ │ │ │ 0.041│ 5.32 │ 103 │

58 2821 0701│9PB18-37-p │ │ │ │ │ │ 5.64 │ │

────────────┼─────────────────┤ │ │ ├────────────┤ ├──────┤ │

58 2821 0702│9PB18-8 │ │ │ │ 7.85 (800) │ │ 1.18 │ │

58 2821 0703│9PB18-8-p │ │ │ │ │ │ 1.50 │ │

────────────┼─────────────────┼─────┤ │ │ ├──────┼──────┼──────┤

58 2821 0704│9PB21-8 │ 2070│ │ │ │ 0.047│ 1.81 │ 118 │

58 2821 0705│9PB21-8-p │ │ │ │ │ │ 2.13 │ │

58 2821 0706│9PB22-3 │ 2200│ │ │ 2.94 (300) │ 0.050│ 1.34 │ 125 │

58 2821 0707│9PB22-3-p │ │ │ │ │ │ 1.66 │ │

58 2821 0708│9PB25-3 │ 2460│ │ │ 2.94 (300) │ 0.056│ 1.50 │ 140 │

58 2821 0711│9PB25-3-p │ │ │ │ │ │ 1.82 │ │

────────────┼─────────────────┤ │ │ ├────────────┤ ├──────┤ │

58 2821 0712│9PB25-8 │ │ │ │ 7.85 (800) │ │ 2.93 │ │

58 2821 0713│9PB25-8-p │ │ │ │ │ │ 3.25 │ │

58 2821 0714│9PB26-4 │ 2590│ │ │ 3.92 (400) │ 0.059│ 1.57 │ 148 │

58 2821 0804│9PB26-4-p │ │ │ │ │ │ 1.89 │ │

58 2821 0805│9PB27-8 │ 2720│ │ │ 7.85 (800) │ 0.062│ 3.45 │ 155 │

58 2821 0806│9PB27-8-p │ │ │ │ │ │ 3.77 │ │

58 2821 0807│9PB29-4 │ 2850│ │ │ 3.92 (400) │ 0.065│ 2.36 │ 162 │

58 2821 0808│9PB29-4-p │ │ │ │ │ │ 2.68 │ │

────────────┼─────────────────┼─────┤ │ │ ├──────┼──────┼──────┤

58 2821 0809│9PB30-4 │ 2980│ │ │ │ 0.068│ 2.45 │ 170 │

58 2821 0810│9PB30-4-p │ │ │ │ │ │ 2.77 │ │

58 2821 0811│10PB18-27 │ 1810│ 250 │ 190 │27.46 (2800)│ 0.086│ 4.00 │ 215 │

58 2821 0812│10PB18-27-p │ │ │ │ │ │ 4.56 │ │

58 2821 0813│10PB21-27 │ 2070│ │ │27.46 (2800)│ 0.098│ 5.80 │ │

58 2821 0814│10PB21-27-p │ │ │ │ │ │ 6.36 │ 246 │

58 2821 0815│10PB21-27-a │ │ │ │ │ │ 8.95 │ │

58 2821 0816│10PB21-27-ap │ │ │ │ │ │ 9.51 │ │

────────────┼─────────────────┼─────┤ │ │ ├──────┼──────┼──────┤

58 2821 0817│10PB25-27-a │ 2460│ │ │ │ 0.117│14.13 │ 292 │

58 2821 0818│10PB25-27-ap │ │ │ │ │ │14.69 │ │

58 2821 0819│10PB25-27 │ │ │ │ │ │10.98 │ │

58 2821 0820│10PB25-27-p │ │ │ │ │ │11.54 │ │

58 2821 0821│10PB25-37 │ 2460│ 250 │ 190 │37.27 (3800)│ 0.117│17.11 │ 292 │

58 2821 0822│10PB25-37-p │ │ │ │ │ │17.67 │ │

────────────┼─────────────────┼─────┤ │ │ ├──────┼──────┼──────┤

58 2821 0823│10PB27-37 │ 2720│ │ │ │ 0.129│40.83 │ 323 │

58 2821 0824│10PB27-37-p │ │ │ │ │ │41.39 │ │

────────────┼─────────────────┤ │ │ ├────────────┤ ├──────┤ │

58 2821 0825│10PB27-27 │ │ │ │27.46 (2800)│ │17.21 │ │

58 2821 0826│10PB27-27-p │ │ │ │ │ │17.77 │ │

58 2821 0827│10PB27-27-a │ │ │ │ │ │20.36 │ │

58 2821 0828│10PB27-27-ap │ │ │ │ │ │20.92 │ │

Jumpers with prestressed reinforcement class At-V

58 2811 0179│9PB18-37 AtV │ 1810│ 120 │ 190 │37.27 (3800)│ 0.041│ 3.83 │ 103 │ Issue 10

────────────┼─────────────────┤ ├──────┼──────┼────────────┼──────┼──────┼──────┤

58 2811 0173│10PB18-27 AtV │ │ 250 │ 190 │27.46 (2800)│ 0.086│ 4.27 │ 215 │

────────────┼─────────────────┼─────┤ │ │ ├──────┼──────┼──────┤

58 2811 0180│10PB21-27 AtV │ 2070│ │ │ │ 0.098│ 4.72 │ 246 │

58 2811 0181│10PB21-27 AtV-a │ │ │ │ │ │ 7.87 │ │

────────────┼─────────────────┼─────┤ │ │ ├──────┼──────┼──────┤

58 2811 0182│10PB25-27 AtV │ 2460│ │ │ │ 0.117│ 6.88 │ 292 │

58 2811 0183│10PV25-27 AtV-a │ │ │ │ │ │10.03 │ │

────────────┼─────────────────┤ │ │ ├────────────┤ ├──────┤ │

58 2811 0184│10PB25-37 AtV │ │ │ │37.27 (3800)│ │ 8.46 │ │

────────────┼─────────────────┼─────┤ │ │ ├──────┼──────┼──────┤

58 2811 0185│10PB27-37 AtV │ 2720│ │ │ │ 0.129│11.32 │ 323 │

────────────┼─────────────────┤ │ │ ├────────────┤ ├──────┤ │

58 2811 0186│10PB27-27 AtV │ │ │ │27.46 (2800)│ │ 7.58 │ │

58 2811 0187│10PB27-27 AtV-a │ │ │ │ │ │10.73 │ │

Jumpers with prestressed reinforcement class At-IVС

58 2811 0170│9PB18-37 AtIVS │ 1810│ 120 │ 190 │37.27 (3800)│ 0.041│ 4.50 │ 103 │ Issue 11

58 2811 0129│10PB18-27 AtIVS │ │ 250 │ 190 │27.46 (2800)│ 0.086│ 4.27 │ 215 │

────────────┼─────────────────┼─────┤ │ │ ├──────┼──────┼──────┤

58 2811 0171│10PB21-27 AtIVS │ 2070│ │ │ │ 0.098│ 4.72 │ 246 │

58 2811 0172│10PB21-27 AtIVS-a│ │ │ │ │ │ 7.87 │ │

────────────┼─────────────────┼─────┤ │ │ ├──────┼──────┼──────┤

58 2811 0135│10PB25-27 AtIVS │ 2460│ │ │ │ 0.117│ 8.46 │ 292 │

58 2811 0174│10PB25-27 AtIVS-a│ │ │ │ │ │11.61 │ │

────────────┼─────────────────┤ │ │ ├────────────┤ ├──────┤ │

58 2811 0175│10PB25-37 AtIVS │ │ │ │37.27 (3800)│ │ 8.46 │ │

────────────┼─────────────────┼─────┤ │ │ ├──────┼──────┼──────┤

58 2811 0176│10PB27-37 AtIVS │ 2720│ │ │ │ 0.129│13.60 │ 323 │

────────────┼─────────────────┤ │ │ ├────────────┤ ├──────┤ │

58 2811 0177│10PB27-27 AtIVS │ │ │ │27.46 (2800)│ │ 9.32 │ │

58 2811 0178│10PB27-27 AtIVS-a│ │ │ │ │ │12.47 │ │

Table 6

────────────┬───────────────┬───────────────────┬────────────┬─────────────┬──────┬─────────────

OKP code │Jumper brand│ Main dimensions │ Design │ Flow rate │Weight │ Designation

│ │ jumpers, mm │ load, │ materials │re- │ release

│ │ │ kN/m │ │slivers │ typical

│ ├─────┬──────┬──────┤ (kgf/m) ├──────┬──────┤ (right -│ design

│ │Length│Width│Height│ │Concrete,│Steel,│voch- │ documentation

│ │ l │ b │ h │ │ m3 │ kg │naya), │ series

│ │ │ │ │ │ │ │kg │ 1.038.1-1

────────────┴───────────────┴─────┴──────┴──────┴────────────┴──────┴──────┴──────┴─────────────

Jumpers with non-stressed reinforcement

58 2821 0829│7PP12-3 │ 1160│ 380 │ 90 │ 2.94 (300) │0.040 │ 1.08 │ 100 │ Issue 5

58 2821 0830│7PP14-4 │ 1420│ │ │ 3.92 (400) │0.049 │ 1.27 │ 121 │

────────────┼───────────────┼─────┼──────┼──────┼────────────┼──────┼──────┼──────┤

58 2821 0831│8PP17-5 │ 1680│ 380 │ 190 │ 4.90 (500) │0.121 │ 3.14 │ 303 │

58 2821 0832│8PP18-5 │ 1810│ │ │ │0.131 │ 3.44 │ 327 │

────────────┼───────────────┼─────┤ │ ├────────────┼──────┼──────┼──────┤

58 2821 0833│8PP21-6 │ 2070│ │ │ 5.88 (600) │0.149 │ 4.04 │ 374 │

58 2821 0834│8PP23-7 │ 2330│ │ │ 6.86 (700) │0.168 │ 5.12 │ 421 │

58 2821 0835│8PP25-8 │ 2460│ │ │ 7.85 (800) │0.178 │ 6.74 │ 444 │

58 2821 0836│8PP30-10 │ 2980│ │ │ 9.81 (1000)│0.215 │ 9.83 │ 538 │

58 2821 0860│8PP14-71 │ 1420│ │ │70.61 (7200)│0.103 │ 6.32 │ 256 │

58 2821 0861│8PP16-71 │ 1550│ │ │ │0.112 │ 6.82 │ 280 │

58 2821 0862│8PP18-71 │ 1810│ │ │ │0.131 │12.59 │ 327 │

58 2821 0863│8PP21-71 │ 2070│ │ │ │0.149 │19.99 │ 374 │

58 2821 0864│8PP27-71 │ 2720│ │ │ │0.196 │61.82 │ 491 │

58 2821 0837│9PP12-4 │ 1160│ 510 │ 90 │ 3.92 (400) │0.053 │ 1.34 │ 133 │

58 2821 0838│9PP14-5 │ 1420│ │ │ 4.90 (500) │0.065 │ 1.57 │ 163 │

58 2821 0839│9PP17-6 │ 1680│ │ │ 5.88 (600) │0.077 │ 2.71 │ 193 │

58 2821 0840│10PP23-10 │ 2330│ 510 │ 190 │ 9.81 (1000)│0.226 │ 6.76 │ 564 │

58 2821 0841│10PP30-13 │ 2980│ │ │12.75 (1300)│0.289 │13.40 │ 722 │

Jumpers with prestressed reinforcement class At-V

58 2811 0198│8PP14-71 AtV │ 1420│ 380 │ 190 │70.61 (7200)│0.103 │ 3.79 │ 256 │ Issue 10

58 2811 0200│8PP16-71 AtV │ 1550│ │ │ │0.112 │ 3.99 │ 280 │

58 2811 0201│8PP18-71 AtV │ 1810│ │ │ │0.131 │ 5.90 │ 327 │

58 2811 0202│8PP21-71 AtV │ 2070│ │ │ │0.149 │ 8.56 │ 374 │

58 2811 0203│8PP27-71 AtV │ 2720│ │ │ │0.196 │25.28 │ 491 │

58 2811 0204│10PP14-72 AtV │ 1420│ 510 │ 190 │71.59 (7300)│0.138 │ 4.80 │ 344 │

58 2811 0205│10PP16-72 AtV │ 1550│ │ │ │0.150 │ 5.08 │ 375 │

58 2811 0206│10PP18-72 AtV │ 1810│ │ │ │0.175 │ 6.08 │ 438 │

58 2811 0207│10PP21-72 AtV │ 2070│ │ │ │0.201 │ 8.80 │ 501 │

58 2811 0208│10PP27-72 AtV │ 2720│ │ │ │0.264 │21.22 │ 659 │

Jumpers with prestressed reinforcement class At-IVС

58 2811 0188│8PP14-71 AtIVS │ 1420│ 380 │ 190 │70.61 (7200)│0.103 │ 3.79 │ 256 │ Issue 11

58 2811 0189│8PP16-71 AtIVS │ 1550│ │ │ │0.112 │ 4.95 │ 280 │

58 2811 0190│8PP18-71 AtIVS │ 1810│ │ │ │0.131 │ 7.37 │ 327 │

58 2811 0191│8PP21-71 AtIVS │ 2070│ │ │ │0.149 │10.54 │ 374 │

58 2811 0192│8PP27-71 AtIVS │ 2720│ │ │ │0.196 │29.09 │ 491 │

58 2811 0193│10PP14-72 AtIVS│ 1420│ 510 │ 190 │71.59 (7300)│0.138 │ 4.80 │ 344 │

58 2811 0194│10PP16-72 AtIVS│ 1550│ │ │ │0.150 │ 5.08 │ 375 │

58 2811 0195│10PP18-72 AtIVS│ 1810│ │ │ │0.175 │ 7.55 │ 438 │

58 2811 0196│10PP21-72 AtIVS│ 2070│ │ │ │0.201 │10.78 │ 501 │

58 2811 0197│10PP27-72 AtIVS│ 2720│ │ │ │0.264 │25.03 │ 659 │

Table 7

OKP code │ Brand │ Main dimensions │ Estimated │ Consumption │Weight │ Designation

│jumpers│ jumpers, mm │ load, │ materials │cross- │ release

│ │ │ kN/m │ │slivers │ typical

│ ├─────┬──────┬──────┬───────┤ (kgf/m) ├──────┬ ──────┤ (right-│ design

│ │Length│Height│Height│Length │ │Concrete,│Steel,│voch- │documentation

│ │ l │ h │high-│support│ │ m3 │ kg │naya), │ series

│ │ │ │sinking│zone a │ │ │ │kg │ 1.038.1-1

│ │ │ │parts │ │ │ │ │ │

│ │ │ │ h │ │ │ │ │ │

│ │ │ │ 1 │ │ │ │ │ │

58 2821 0842│4PF8-2 │ 770│ 90 │ 90 │ 130 │ 1.96 (200) │ 0.014│ 0.53│ 35 │ Issue 7

58 2821 0843│4PF9-2 │ 900│ │ │ │ │ 0.017│ 0.58│ 43 │

58 2821 0844│4PF10-2 │ 1030│ │ │ │ │ 0.020│ 0.63│ 50 │

58 2821 0845│4PF13-3 │ 1310│ │ │ │ 2.94 (300) │ 0.026│ 0.80│ 65 │

58 2821 0846│4PF14-4 │ 1420│ │ │ │ 3.92 (400) │ 0.029│ 0.95│ 73 │

58 2821 0847│5PF16-5 │ 1550│ 190 │ 90 │ 130 │ 4.90 (500) │ 0.050│ 0.83│ 125 │

58 2821 0848│5PF17-5 │ 1680│ │ │ │ │ 0.055│ 0.99│ 138 │

58 2821 0849│5PF19-6 │ 1940│ │ │ │ 5.88 (600) │ 0.064│ 1.40│ 160 │

58 2821 0850│6PF22-8 │ 2200│ 190 │ 90 │ 195 │ 7.85 (800) │ 0.071│ 3.23│ 178 │

58 2821 0851│6PF23-8 │ 2330│ │ │ │ │ 0.076│ 3.74│ 190 │

58 2821 0852│6PF25-8 │ 2460│ │ │ │ │ 0.080│ 4.26│ 200 │

58 2821 0853│6PF30-8 │ 2980│ │ │ │ │ 0.098│ 7.09│ 245 │

58 2821 0854│6PF22-12 │ 2200│ 190 │ 90 │ 195 │11.77 (1200)│ 0.071│ 4.61│ 178 │

58 2821 0855│6PF23-12 │ 2330│ │ │ │ │ 0.076│ 5.15│ 190 │

58 2821 0856│6PF25-12 │ 2460│ │ │ │ │ 0.080│ 6.28│ 200 │

58 2821 0857│6PF30-12 │ 2980│ │ │ │ │ 0.098│ 10.07│ 245 │

58 2821 0858│7PF40-10 │ 4020│ 290 │ 90 │ 260 │ 9.81 (1000)│ 0.181│ 11.89│ 453 │

58 2821 0859│7PF43-10 │ 4280│ │ │ │ │ 0.193│ 13.67│ 483 │

Size table according to GOST 948

The dimensions of concrete lintels for all designs are contained in the tables of the regulatory document. Table values are used by professional builders and design specialists when selecting products to perform specific construction tasks.

The diameter of the reinforcement used directly depends on what type of reinforced concrete lintel will be made - block or slab

Along with the dimensions of the beams, the standard tables contain the following information:

product code and marking;
design loads;
reference mass;
the required amount of materials for the manufacture of products.

The tabular information allows you to select crossbars taking into account the required safety margin.

Labeling rules according to GOST

Marking is an alphanumeric designation of the main parameters and characteristics of the product. It is applied directly by the manufacturer before sending the jumpers for storage and further sale.

The marking of a reinforced concrete monolithic lintel indicates:

product type;
section size;
length of the structure;
maximum permissible load;
reinforcement class;
presence of load-lifting structural elements.

Let's take an example of several markings of reinforced concrete products:

2PB 19-3-p

. By deciphering this abbreviation, you can determine the following jumper parameters:

2 is the section number, its dimensions are 120x140 mm;
PB – type of product, bar lintel;
19 – jumper length;
3 – the value of the design load, in this case 3 kN/m;
p – presence of mounting lifting loops.

6PF 23-12

. This is a facade lintel, cross-section type No. 6, which corresponds to dimensions 190x90x195, section diameter 23, load 12 kN/m.

It is also mandatory to have regulatory documentation, which indicates detailed information about the manufacturer, batch number, production date, number of units.

How to make reinforced concrete lintels according to GOST 948

The manufacturing process can be carried out in a production environment or independently. To make it yourself, you should prepare:

wood or moisture-resistant plywood for making formwork;
steel bars intended for reinforcement cage;
knitting wire, which allows you to securely fix steel reinforcement;
concrete mixture prepared in the volume required for pouring.

The algorithm for self-manufacturing crossbars is as follows:

Select the type of crossbar that meets the dimensional requirements of the standard.
Develop a formwork drawing taking into account the configuration of the element being formed.
Make the formwork, ensuring its tightness and strength.

Reinforced concrete beam lintels are the most common type of product used to design openings in residential, industrial and civil buildings

Place polyethylene to make it easier to remove the finished product.
Cut steel rods with a diameter of 10–12 mm into blanks.
Tie 4 longitudinal rods into a lattice using tying wire.
Place the frame in the mold on special pads (with an equal gap to the surface).
Prepare a concrete mixture of the required grade and pour it into the formwork.
Plan the top plane of the concrete mass and lay polyethylene on it.
Moisten the molded product periodically to maintain moisture.
Remove the crossbar from the mold one month after concreting.

This technology allows you to independently produce products with small dimensions, which are then mounted in the opening area. Large-sized and massive structures that absorb significant forces are manufactured at specialized enterprises.

How to make a bar lintel on a door yourself

Reinforced concrete lintels intended for windows and doors can be made independently. Despite the affordable cost of factory products, this approach will provide economic benefits.

If the house is being built in conditions of increased seismic activity, the lintel must be made taking into account the increased loads

Construction materials:

diorite crushed stone, 20 mm;
fittings, d 12 mm;
river sand;
Portland cement M400 or M500;
wire rod, 6.0 mm;
knitting wire, 1.4-2.0 mm;
nails 70, 100 mm;
edged board 200*25 mm.

When building a one-story house, you can use reinforcement with a diameter of 8.0 mm . The working diameter was taken taking into account the construction of the second floor (attic).

Formwork assembly

Initially, it is necessary to carry out preliminary measurements, during which the height of the future door is determined, taking into account the slopes and the space required for foaming .

Due to the fact that the thickness of the board used is 2.5 cm, you can immediately measure the level - the horizontal bottom will be laid out at this mark. Next, side T-shaped supports are mounted, for which 100 mm nails are used. When working, you can use self-tapping screws rather than nails, which can simplify assembly.

The assembly of formwork is subject to the following principles:

for work you will need three boards, consisting of boards 800 mm long for the bottom, 1200 mm for the sides, taking into account the depth of support of the future lintel (200 mm on each side);
the boards are wrapped in polyethylene film;
the bottom short board is laid out on ready-made T-shaped supports;
side panels are mounted, which are first nailed along the edges to the walls;
the corners between the bottom and side panels are fixed by driving nails from top to bottom slightly obliquely;
in the middle of the lower shield, closer to the window, an additional support is installed;
70 mm nails are driven along the top of the sidewalls, onto which the binding wire is fixed to tighten the structure.

If a narrower board is used to arrange the formwork and the sides are prefabricated, they are reinforced with vertical bars 1.0 * 1.0 cm in increments of 15-20 cm

Self-reinforcement

The steel frame is the basis for the structure’s resistance to loads and deformations.

Frame components:

rod – length 1200 mm, d 12 mm – 4 pcs.;
knitting wire;
from wire rod, d 6 mm, six quadrangles 100*100 mm are formed.

The frame can be tied using ordinary 100 mm nails, which replace hooks. Wire rod molds are strung onto rods in increments of 20 cm and secured with wire. The finished frame is immersed in the formwork on plastic chairs.

Preparation and pouring of concrete

The solution can be mixed in a homemade trough made from galvanized sheet 200*100 cm and boards that strengthen the trough along the bottom. For reliability, the product is tied together with knitting wire at the corners.

The working mixture can be prepared using 1 bucket of M400 cement, 3 buckets of sand and crushed stone . Water is added until the solution reaches the proper consistency. The mass is mixed and, once ready, poured into the formwork in buckets. The solution is bayoneted with a reinforcement bar to remove voids, the formwork is tapped so that the concrete shrinks .

The period after which construction can continue depends on weather conditions.

Formwork and its strengthening

The technology also makes it possible to fill beams directly above the opening.

To ensure the strength of concrete structures reinforced with steel reinforcement, formwork from the following materials is assembled in the opening area:

metal sheets;
wooden boards;
moisture-resistant plywood;
particle boards.

The height of the lintel is selected based on the calculated load on the opening.
A form is assembled from blanks, which is fixed with wire or bars against possible deformations during concreting. It is important to think about how the formwork structure will be disassembled after the crossbar has hardened. For this, a polyethylene film is used, which is placed inside the mold or the metal surface is lubricated with oil. A reinforcement cage is placed inside the formwork, which ensures the integrity of the structure and prevents displacement. Vertical supports should also be provided for additional fastening of the form.

Reinforced concrete purlins

Products are also made on the basis of concrete and steel. Concrete purlins with a rectangular cross-section are marked PRG, those with a T-section - PR and are produced in accordance with series 1.225-2 issue 12. The main area of use is covering openings in rooms built from wall blocks or bricks. The product is manufactured for a design load of 4000 kgf/m, which requires installation in load-bearing walls .

GOST reinforced concrete purlins are made of heavy concrete M250, with a length of more than 6.0 m - from M350. Reinforcement can be carried out with prestressed spatial frames and rods and unstressed spatial steel frames.

Reinforced concrete purlins, dimensions

Reinforced concrete products are produced in various standard sizes, so it is rational to indicate their limits:

length – from 278.0 cm or more;
height – 30-50 cm;
width – 12-40 cm.

The weight of the purlin can vary from 150 to 1500 kg.

GOST 948 84 “Jumpers” - basic provisions

The regulatory document provides extended information for builders and designers:

application area;

In a non-load-bearing wall, the lintels are the same size

types of products;
dimensions of various types of products;
technical specifications;
marking features;
product acceptance rules;
quality control methods;
transportation rules;
storage specifics.

Compliance with the provisions of the standard guarantees the quality of the products produced.

How to calculate the size of reinforced concrete lintels

To select crossbars, taking into account the strength characteristics and operating loads, it is necessary to perform the calculation correctly. It includes the following stages:

calculation of the load acting on the structure;
determination of the maximum permissible bending moment;
selection of the optimal section.

It is advisable to entrust the calculations to professionals who are familiar with the calculation methods and take into account all factors in full.

Useful tips

When performing work, pay attention to the following points:

the height of the beam, which must be at least 5% of the height of the opening;
the width of the structure, which must rest completely on the surface;
diameter of reinforcement cage rods, ranging from 10 to 14 mm;
immobility of the structure, which can be loaded a month after pouring;
quality workmanship and reliability of installation, guaranteeing the absence of cracks;
thorough compaction of the concrete mixture to remove air pockets.

In the process of manufacturing and installation of concrete crossbars reinforced with reinforcing mesh, one should be guided by the provisions of the regulatory document. The products are in demand in the construction industry and provide an increased margin of safety, as well as durability of building structures. When designing, it is necessary to focus on the provisions of GOST 948 84. This will avoid problematic situations associated with the formation of cracks and violation of the integrity of building structures.

Application

The main area of application of monolithic reinforced concrete lintels is construction. In the process of constructing multi-storey residential buildings or large industrial structures, a bar, slab or L-shaped lintel is used. When constructing low-rise buildings, for example, residential buildings or outbuildings, a type such as pencils is often used.

Reinforced concrete lintels are a mandatory structural element for doorways and window openings. The main function of a monolithic lintel is load distribution.