Plates ribbed type 2P size 1x6. Overview Plate Overlapping P-shaped
GOST 28042-2013
Interstate standard
Coating plates reinforced concrete for buildings and structures
Technical conditions
Reinforced Concrete Roofings Slabs for Industrial Buildings. Specifications.
ISS 91.080.40
OKSTA 5841.
Date of introduction 2015-01-01
Preface
Objectives, basic principles and procedure for conducting work on interstate standardization Installed GOST 1.0-92 "Interstate standardization system. Basic provisions" and GOST 1.2-2009 "Interstate standardization system. Standards interstate, rules and recommendations on interstate standardization. Development, adoption rules , updates and cancellation "
Information about standard
1 Developed by the Central Research and Research and Experimental Institute of Industrial Buildings and Facilities (OJSC "TsNIipromzdania")
2 Submitted by the Technical Committee on Standardization TC 465 "Construction" Russian Federation
3 Adopted by the Interstate Council for Standardization, Metrology and Certification (Protocol of November 14, 2013 N 44-P)
For the adoption voted:
Short name of the country on MK (ISO 3166) 004-97 | Abbreviated name of the National Standardization Authority |
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Ministry of Economy of the Republic of Armenia |
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Kazakhstan | Gosstandart of the Republic of Kazakhstan |
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Kyrgyzstan | Kyrgyzstandart |
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Moldova Standard |
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Rosstandard. |
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Tajikistan | Tajikstandard |
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Uzbekistan | Ustanndart |
(Amendment. IUS N 4-2016).
4 by order of the Federal Agency for Technical Regulation and Metrology N 2391-Art dated December 30, 2013 Enacted as a national standard of the Russian Federation from January 1, 2015
5 instead of GOST 28042-89
Amendment has been amended, published in JUS N 4, 2016
The amendment is made by the database manufacturer
Information on the changes to this standard is published in the annual information indicator "National Standards", and the text of the change is in the monthly information indicator "National Standards". In case of revision (replacement) or the cancellation of this Standard, the appropriate notification will be published in the National Standards Monthly Information Index. Relevant information, notification and texts are also posted in the public information system - on the official website of the Federal Agency for Technical Regulation and Metrology on the Internet.
1 area of \u200b\u200buse
1 area of \u200b\u200buse
1.1 This standard establishes the technical requirements, control methods and the rules for acceptance, transportation and storage of reinforced concrete ribbed and flat plates from heavy or structural light concrete.
1.2 Plates are used in coatings of enterprises of all industries and national economy, with the exception of residential and public buildings.
2 Regulatory references
This standard uses regulatory references to the following interstate standards:
GOST 5781-82 Hot-rolled steel for reinforced concrete structures. Technical conditions
GOST 6727-80 Low carbon wire is cold-trailed for reinforced concrete structures. Technical conditions
GOST 7348-81 Carbon steel wire for reinforcing pre-stressed reinforced concrete structures. Technical conditions
GOST 8829-94 Construction concrete products and concrete factory manufacturers. Test methods for loading. Rules for assessing strength, rigidity and crack resistance
GOST 10060.0-95 concrete. Methods for determining frost resistance. General requirements
GOST 10060.1-95 concrete. Basic method of determining frost resistance
GOST 10060.2-95 concrete. Accelerated methods for determining frost resistance in repeated freezing and thawing
GOST 10180-2012 Concretes. Methods for determining the strength of control samples
GOST 10181-2000 Mixtures Concrete Test Methods
GOST 10884-94 Steel reinforcement thermomechanically hardened for reinforced concrete structures. Technical conditions
GOST 10922-90 Reinforcement and mortgage products Welded, compounds Welded fittings and mortgage products of reinforced concrete structures. General technical conditions
GOST 12730.0-78 concrete. General requirements for methods for determining density, humidity, water absorption, porosity and waterproof
GOST 12730.1-78 concrete. Methods for determining density
GOST 12730.5-84 concrete. Methods for determining waterproof
GOST 13015-2012 Reinforced concrete and concrete products for construction. General technical requirements. Rules of acceptance, labeling, transportation and storage
GOST 13840-68 Steel reinforcement ropes 1x7. Technical conditions
GOST 16504-81 System of state test products. Testing and quality control of products. Basic Terms and Definitions
GOST 17623-87 concrete. Radioisotope method for determining average density
GOST 17624-87 concretes. Ultrasonic strength determination method
GOST 17625-83 Constructions and products are reinforced concrete. Radiation method for determining the thickness of the protective layer of concrete, sizes and armature location
GOST 18105-2010 Concretes. Rules for monitoring and assessing strength
GOST 22362-77 Constructions are reinforced concrete. Methods for measuring reinforcement tension force
GOST 22690-88 concrete. Determining the strength of non-destructive testing mechanical methods
GOST 22904-93 Constructions are reinforced concrete. Magnetic method for determining the thickness of the protective layer of concrete and armature location
GOST 23858-79 Compounds welded butt and brand fittings of reinforced concrete structures. Ultrasound quality control methods. Rules acceptance
GOST 25820-2000 Lung concretes. Technical conditions
GOST 26134-84 concrete. Ultrasound method for determining frost resistance
GOST 26633-91 Heavy and fine-grained concretes. Technical conditions
GOST 32499-2013 Plates of flooring reinforced concrete multi-consist for buildings by flying up to 9 m stand molding.
Note - When using this standard, it is advisable to check the action of reference standards in the public information system - on the official website of the Federal Agency for Technical Regulation and Metrology on the Internet or on the National Standards Annual Information Signal, which is published as of January 1 of the current year, and on issues of the monthly information pointer "National Standards" for the current year. If the reference document is replaced (changed), then when using this standard should be guided by replacing (modified) document. If the reference standard is canceled without replacement, the position in which the reference is given to it is applied in a portion that does not affect this link.
3 Terms and Definitions
This standard applies the following terms with the corresponding definitions, as well as GOST 32499 and GOST 21506:
4 Technical requirements
4.1 General requirements
4.1.1 The use of plates under conditions of constant temperature is higher than plus 50 ° C, as well as in unheated buildings and outdoors at the calculated outdoor air temperature below minus 40 ° C is allowed when adaling additional conditions established by the current regulatory documents.
4.1.2 Application of plates in areas with seismicity 7 and more points is allowed subject to the requirements of existing regulatory documents.
4.1.3 The use of plates in conditions of weakly and medium aggressive degree of impact of the gaseous medium on reinforced concrete structures It is allowed subject to the fulfillment of the requirements of existing regulatory documents.
4.2 Main parameters and dimensions.
4.2.1 Plates should be manufactured in accordance with the requirements of this standard, design and technological documentation approved in the prescribed manner.
It is allowed to manufacture plates that are characterized by types and sizes from those provided in this standard, according to the approved specifications and relevant working drawings, subject to the remaining requirements of this Standard.
4.2.2 Reinforced concrete ribbed plates by coordination sizes 1.5x12, 3x12, 1.5x6 and 3x6 m are made pre-tense, and good ribbed and flat - with unprofitable reinforcement.
4.2.3 Pre-stress plates are divided into the following types:
- GHG - without openings in the shelf of the plate, with an upper flat (horizontal or binary) surface;
- PV - with openings in the shelf of the slab for skipping ventilation mines with deflectors or umbrellas, as well as air ducts of roof fans with an upper flat (horizontal or binary) surface;
- PF - with openings in the shelf of the plate for the installation of anti-aircraft lamps with an upper flat (horizontal or binary) surface;
- PS - with openings in the shelf of the plate for the installation of light butter lamps with an upper flat (horizontal or dupp) surface;
- pl - with openings in the shelf of the plate for the device of the lightly graded roof with an upper flat (horizontal or binary) surface.
4.2.4 Plates with unwired reinforcement are manufactured without opening in the shelf and are divided into the following types:
- PR - ribbed;
- PP - flat.
4.2.5 Form and main sizes of plates must correspond to the values \u200b\u200bspecified in Table 1 and 2.
Table 1
Designation of size plate | Main Sizes Plate, mm | Plate number in Table 2 | Designation of a series of work drawings or standard |
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Height on the support | |||||
Notes 1 plates marked with "*" familiar, namely 10, 11, 12, 13, 14, 15 have in table 2 in brackets a second version of the sizes of plates due to an increase in the thickness of their 5 mm shelves in cases specified in the working drawings on These plates; 2 Additional sizes of plates are given in ,,,,, |
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table 2
General view of the plate | Cuts |
1 stove sizes 3PG12 |
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2 Plate of size 3PV12 with an open diameter of 400, 700 or 1000 mm |
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3 stove sizes 3pl12 |
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4 stove size 1PG12 |
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5 Plate of size 1FV12 with an open diameter of 400, 700 or 1000 mm |
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6 plate size 1FV12 with open-diameter 1450 mm |
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7 Stoves Size 1 PF12 with four openings with dimensions 1500x1700 mm |
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8 Plate of size 1 PF12 with two openings dimensions 2600x2700 mm |
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9 stove size 1pl12 |
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10 Stove Size 2PG12 |
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11 Plate of size 2PV12 with an open diameter of 400 or 700 mm |
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12 Plate of size 2PV12 with an open diameter of 1000 or 1450 mm |
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13 Plate of size 2PV12 with four openings with dimensions 1500x1700 mm |
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14 Plate of size 2 PPF12 with two openings dimensions 2600x2700 mm |
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15 plate sizzy 2pl12 |
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16 Stove Size 4PG6 |
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17 Plate of size 4PV6 with open-diameter 400, 700 or 1000 mm |
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18 stove size 4pf6 with one open-dimensional size 1200x1700 mm |
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19 Plate of size 4pf6 with two openings with dimensions 1200x1700 mm |
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20 stove sizes 4pl6 |
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21 stove sizes 3PG6 |
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22 Plate of size 3PV6 with openings with a diameter of 400 or 700 mm |
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23 stove sizes 3pv6 with openings with a diameter of 1000 or 1450 mm |
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24 Stove Size 3 PF6 with one open dimensions 2600x2700 mm |
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25 stove sizes 3pl6 |
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26 Stove Size PR3 |
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27 PR1 size stove |
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28 stove size 1pp |
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29 Plate of size 2PP |
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4.2.6 In cases stipulated by the building project, workers drawings plates may have additional holes, cutouts in shelves, recesses on the outer edges of the longitudinal ribs for the device of concrete knaps between adjacent plates, as well as additional mortgage products, subject to the remaining standard requirements.
4.2.7. The dimensions of the ledges on longitudinal faces should be taken in Figure 1.
but - Plates 3PG12, 3PV12, 3PL12; b. - Plates 1PG12, 1FV12, 1 PF12, 1PL12; at - Plates 2PG12, 2PV12, 2 PF12, 2PL12; g. - Plates 4PG6, 4PV6, 4PF6, 4PL6; d. - Plates 3PG6, 3PV6, 3PF6, 3PL6
Figure 1 - Sizes of ledges on longitudinal plates
4.3 Characteristics of plates
4.3.1 Plates should satisfy the requirements established by the design, stiffness and crack resistance in the steps of operation, transportation and storage, and when testing them with loading - withstand the control loads specified in the project documentation.
4.3.2 Plates must satisfy the requirements of GOST 13015:
- in terms of the actual strength of concrete (at design age, transfer and vacation);
- on the frost resistance of concrete, and for plates operated under the condition of exposure to the aggressive gaseous medium, also on the waterproof of concrete;
- in terms of average lung concrete density;
- to stacks of steels for reinforcing and mortgage products, including for mounting loops;
- in the thickness of the protective layer of concrete;
- to protect against corrosion.
4.3.3 The carrying capacity of a particular plate depends on the class of strainable reinforcement, type and class of concrete and is determined by the author of the project of the building (facilities) according to the regulatory documents applicable during the application.
4.4 Requirements for materials
4.4.1 Plates should be made of medium density heavy concrete from 2200 to 2500 kg / m inclusive according to GOST 26633 or lightweight concrete of a dense structure of an average density from 1800 to 2000 kg / m inclusive according to GOST 25820, classes for concrete strength on compression specified in Working drawings of these plates.
4.4.2 Transferring compression efforts on concrete (valuation of reinforcement tension) should be carried out after reaching the required transfer strength concrete.
The normalized gear strength of the concrete of pre-stressed plates (concrete strength by the time its compression controlled similarly to the concrete class by compression strength) is set depending on the class of concrete, the type and class of stranded reinforcement steel, the pre-tension values \u200b\u200band is assigned to the working drawings on these plates, But not less than 15 MPa and at least 50% of the adopted concrete class on compressive strength.
4.4.3 The normalized vacation strength of concrete concrete is taken to be taken equal to normalized transmission strength, but not less than 70% of the project.
When delivering the plates to the consumer during the cold period of the year or during transportation by rail, the normalized vacation strength of the concrete can be increased to 85% of the concrete class on compression strength.
The normalized vacation strength of concrete must comply with the value specified in the design documentation for a specific building or structure and in the order for the manufacture of plates according to the requirements of GOST 13015.
4.4.4 For plates operated with a weak and medium aggressive degree of impact of a gaseous medium, a concrete must be applied satisfying the requirements established by project documentation (According to current regulatory documents) and specified in the order for the manufacture of plates.
4.4.5 For plates reinforcement, it is recommended to apply the following types and classes of reinforcement:
- as strained fittings - hot-rolled thermomechanically hardened fittings of the periodic profile of the class A600, A800 and A1000 (GOST 10884 _______________
In the Russian Federation, the A500C class reinforcement is manufactured according to GOST R 52544.
4.4.6 It is allowed as a strain assembly assembly assembly of the A400 class fittings, a strengthened exhaust, with the control of the voltage and limit elongation or control only the extension value (without voltage control).
4.4.7 Voltage values \u200b\u200bin strained fittings, controlled after the end of the assembly of reinforcement to the stops must comply with the project documentation specified in the project documentation.
The values \u200b\u200bof the actual voltage deviations in the strained fittings should not exceed ± 10%.
4.5 Requirements for surface quality and appearance plates
4.5.1 Form and dimensions of reinforcement and mortgage products and their position in the stoves must comply with the operating drawings or standards on these plates and the requirements of GOST 10922.
4.5.2 Deviations from the nominal sizes of the plates specified in the working drawings should not exceed the following values:
± 10 mm - on the length of the plates;
± 5 mm - on plates height;
± 3 mm - the thickness of the shelf;
± 6 mm (with width to 2.5 m) and ± 8 mm (with a width of over 2.5 m) - in the width of the plates.
4.5.3 Deviations from the project position of steel mortgages should not exceed:
10 mm - in the plane of the plate;
5 mm - from the plane of the plate.
4.5.4 Requirements for surface quality and appearance of plates - according to GOST 13015 and this standard.
Sizes of shells, local influx (protrusions), in concrete surfaces and concrete chips Rib slabs should not exceed the limit for the surface categories installed in the project for specific conditions for the use of plates.
4.5.5 In the concrete plates supplied by the consumer, cracks are not allowed, except:
- shrinking and other surface technological cracks, the width of which should not exceed 0.1 mm;
- transverse in the upper zone of longitudinal ribs from the compression of concrete, the dimensions of which should not exceed these plates specified in the working drawings;
- transverse in the end rhesis, whose width should not exceed these plates specified in the working drawings.
4.5.6 Ends of strained reinforcement should not be performed for the end surfaces of the plates by more than 10 mm, and they should be protected by a layer of cement-sandy solution or bitumen varnish.
4.6 Marking
Plate marking should be carried out according to GOST 13015. Marking inscriptions and signs should be applied on the outer face of the end or longitudinal rib plate, and for the plates of the front surface.
5 acceptance
5.1 Acceptance of plates should be carried out according to GOST 13015 and this standard.
5.2 Plates are accepted according to the input, operational and acceptance control, as well as:
- According to the results of periodic tests - in terms of strength, stiffness and crack resistance, plates, frost resistance of concrete, porosity of a compacted mixture of light concrete, as well as in terms of waterproof plates concrete, intended for operation under an aggressive gaseous medium;
- According to the results of acceptance tests - in terms of concrete strength (class or concrete brand, by compressive strength, transfer and vacation strength), the average density of light concrete, the correspondence of the reinforcement and mortgage products, the working drawings, the strength of welded joints, the accuracy of geometric parameters, thickness The protective layer of concrete to the reinforcement, the width of the disclosure of technological cracks, the category of concrete surface.
5.3 Periodic tens of boards with loading to control their strength, rigidity and crack resistance are carried out before the beginning of their mass production and in the future - when making constructive changes to them or when changing manufacturing technology, as well as in the process of serial production of plates at least once every 6 months.
Testing plates with loading in case of constructive changes in them or when the manufacturing technology changes, it is allowed not to be carried out by coordination with the project organization - the developer of workers' drawings of the slabs.
5.4 Document on the quality of the plates supplied by the consumer should be according to GOST 13015.
Additionally, in the board's quality, the concrete brand for frost resistance must be shown, and for plates intended for operation under the conditions of exposure to the aggressive gaseous medium, concrete brand on waterproof.
5.5 Tests of concrete in the indicator of porosity (volume of inter-rigid emptiness) of a compacted mixture of light concrete should be carried out at least once a month.
5.6 Plates in terms of accuracy of geometric parameters, the thickness of the protective layer of concrete to the reinforcement, the category of concrete surface and the width of the technological cracks should be taken according to the results of selective control.
or mechanical action devices according to GOST 10181 GOST 13015.
6.10 The position of the reinforcement and mortgage products, as well as the thickness of the protective layer of concrete to fittings, should be determined according to GOST 17625 and GOST 22904.
7 Transportation and storage
7.1 Transport and store plates should be in accordance with the requirements of GOST 13015 and this standard.
Warehousing and storage methods are detailed in the technical factories of manufacturers.
The choice of vehicles is carried out at the stage of development of a project for the production of works, taking into account the size of the plates, the range of transportation, road conditions.
7.2 Plates should be transported and stored in a working (horizontal) position in stacks with support plates for four points.
The height of the stacks of plates during their storage should not exceed 2.5 m.
7.3 The lining under ribbed plates and gaskets between them in the stack should be placed on the ends of the longitudinal ribs in the places of installation of supporting bedding products. Lining and gaskets under flat plates should be placed in the support part of the plate.
The width of the gasket is prescribed taking into account the strength of the wood on the crumpled. The thickness of the gasket must ensure the presence of a gap from the top of the mounting loop of at least 20 mm.
7.4 Lifting plates 6 m long and more should be carried out by special traverses (with capturing for mounting loops or luminous parts), providing a uniform distribution of the load on all four loops of the raised plate and guaranteeing the absence of a loop bending.
It is allowed to lift the plates with a length of 6 m four-track slats with an angle of inclination of slings of at least 45 ° to the horizon (Fig. 2).
Figure 2 - Lifting plates 6 m long
7.5 Ribbed and flat plates up to 3 m long to be transported laid in stacks and fixed from shifts stretch marks for mounting hinge plates.
7.6 When transporting plates with a length of over 3 m railway transport, it is not allowed to apply the loading schemes, which include the fastening of stove stakes with stretch marks, linked for mounting hinges of the plates.
7.7 The fastening of the plates should be carried out using racks and connected transverse bars attached by two pairs of wire stretch marks with a diameter of 6 mm in six threads. The upper and lower transverse bars are naked to the racks, lower bar, in addition, to the floor platform, four nails with a length of at least 150 mm, as shown in Figure 3 GOST 32499.
7.8 For the transportation of plates also use special compositions whose wagons are equipped with cassettes, welded frames and containers. The design of such a container is shown in Figure 4 GOST 32499.
Bibliography
Typical RD Series 1.465.1-16 | Reinforced concrete plates for 1.5x12 m in size for single-storey coatings production buildings |
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Typical RD Series 1.465.1-15 | Plates of reinforced concrete ribbed size 3x12 m for coatings of single-storey industrial buildings |
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Typical RD Series 1.465.1-20 | Reinforced concrete ribbed plates for 1.5x6 m for coatings of single-storey industrial buildings |
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Typical RD Series 1.465.1-21.94 | Reinforced concrete ribbed plates for 3x6 m for coatings of single-storey industrial buildings |
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Typical RD Series 1.465.1-19 | Reinforced concrete plates small-sized, for coatings of single-storey industrial buildings |
UDC 691.328: 006.354 μs 91.080.40 OKSTA 5841
Keywords: ribbed stove, coating, technical conditions, marking, control methods, transportation and storage, rules for safe performance of work
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Electronic document text
prepared Codex JSC and drilled by:
official edition
M.: Standinform, 2014
State Standard of the SSR Union
Reinforced concrete coatings plates
For buildings of enterprises
Technical conditions
GOST 28042-89
State Construction Committee of the USSR
1. Technical requirements
1.1. Plates should be manufactured in accordance with the requirements of this standard and technological documentation approved in the prescribed manner, on the working drawings of the series 1.465.1-7 / 84, 1.465.1-13, 1.465.1-14, 1.465.1-15, 1.465. 1-16, 1.465.1-17, PC-01-88, 1.865.1-4 / 89 and 1.865.1-8. (Changed. Editorial). It is allowed to manufacture plates that are characterized by types and sizes from those provided in this standard, according to the specifications and appropriate working drawings approved in the prescribed manner. 1.2. Main parameters and dimensions 1.2.1. Reinforced concrete ribbed plates with coordination dimensions of 1.5 '6, 1.5' 12, 3 '6, 3' 12 and 3 '18 m are made pre-intense, and good ribbed and flat - with unprofitable reinforcement. (Changed. Editorial). 1.2.2. Pre-stressful plates are subdivided into the following types: GHG - without opening in the shelf of the plate, with an upper flat (horizontal or binary) surface; The same, with a vaulted upper surface (slabs - shell); PV - with openings in the shelf of the slab for skipping ventilation mines with deflectors or umbrellas, as well as air ducts of roof fans, with an upper flat (horizontal or binary) surface; The same, the shell plates; PF - with openings in the shelf of the plate to install anti-aircraft lamps, with an upper flat (horizontal or binary) surface; POP - the same, shell plates; PS - with openings in the shelf of the slab for the installation of light butter lamps, with an upper flat (horizontal or bantal) surface; Pos - the same, shell plates; Pl - with openings in the shelf of the plate for the device of the light-grade roof, with an upper flat (horizontal or binary) surface; The floor is the same, the shell plates. 1.2.3. Plates with unwired reinforcement are manufactured without opening in the shelf and are divided into the following types: PR - ribbed; PP - flat. 1.2.4. The shape and main sizes of plates must comply with the application. 1.2.5. Concrete consumption indicators and steel on the plates must comply with those specified in the working drawings or standards on these plates. 1.2.6. In cases provided for by the project of the building, the plates may have additional holes, cutouts in the shelves, the deepening of the outer edge of the longitudinal ribs for the device of concrete knaps between adjacent plates, as well as additional mortgage products. 1.2.7. Plates are marked in accordance with the requirements of GOST 23009. The brand of the slab consists of alphanumeric groups separated by hyphens. In the first group indicate the designation of the plate size. The second group indicates the sequence number of the slab on the bearing capacity, the class of strained reinforcement (for pre-stressed plates), type of concrete (for plates made from light concrete). The third group, if necessary, include additional characteristics, reflecting special conditions for the use of plates: their resistance to the effects of the aggressive medium, seismic and other effects, as well as the designations of the structural features of the plates (presence, dimensions and location of the openings, the presence of additional mortgage products, etc. ). An example of a conditional designation (brand) of the plate of size 3PH6, the second on the supporting ability, with the strained reinforcement steel of the AT-V class, made of heavy concrete:3PG6-2T. VI
The same, third carrying capacity, with a strained reinforcement steel-class AT-V, made of light concrete, with additional mortgage products:
3PG6-3At. V. L-A.
The same, stoves of size 4pv6, fourth on the bearing capacity, with a strained stage of the AT-V class, made of light concrete, with an open-diameter of 400 mm:
4PV6-4AT. V. L-4.
Note. It is allowed to accept the designations of stove brands in accordance with the instructions of the working drawings and standards on these plates before their revision. 1.3. Characteristics 1.3.1. Plates must meet the requirements of GOST 13015.0: in terms of the actual strength of concrete (transfer, vacation and during design aged); on the frost resistance of concrete, and for the plates operated under the conditions of exposure to the aggressive gaseous medium also on the waterproof of concrete; in terms of the actual average density of light concrete; to stamps steel for reinforcement and mortgage products, including for mounting loops; on the thickness of the protective layer of concrete to the reinforcement; on corrosion protection. 1.3.2. Plates must satisfy the requirements for strength, rigidity and crack resistance established when designing and when testing them is loaded withstanding the control loads specified in the working drawings or standards on these plates. 1.3.3. Plates should be made of heavy concrete according to GOST 26633 or lightweight concrete of a dense structure according to GOST 25820 classes or concrete brands on compressive strength specified in working drawings or in standards on these plates. 1.3.4. The transfer of compression efforts to concrete (armature tension leave) in pre-stressful plates should be made after reaching the concrete of the required transfer strength. The normalized gear strength of the concrete concrete of pre-stressed plates, depending on the class or brand of concrete, the type and class of stranded reinforcement steel must comply with the operating drawings or standards on these plates. 1.3.5. The normalized vacation strength of the concrete concrete of pre-stress plates is taken equal to the normalized transfer strength, and the plates with unknown reinforcement are 70% of the class or grade for compressive strength. When delivery of plates in the cold period of the year, the normalized vacation strength of concrete slabs can be increased to 85% of the class or concrete brand for compressive strength according to the instructions of the work drawings or standards on these plates. 1.3.6. For reinforcing plates should be applied reinforcement steel following species and classes: as strained fittings - thermomechanically harnessed rod classes A T - VI, A T - V, A T - VCK, A T - IVC, A T - IVK according to GOST 10884, hot-rolled rod classes A - V, A - IV According to GOST 5781, the reinforcement ropes of class K-7 according to GOST 13840, high-strength wire of the periodic profile of class B-II according to GOST 7348 and the rod-class A-III B, which is made from the valve class A - III according to GOST 5781 by hardening with an exhaust with the control of the magnitude voltage and limit elongation; As an unfortunate - rod reinforcement steel class A-III and A - I according to GOST 5781; Thermomechanically hardened classes A T - IVC and A T - IIC according to GOST 10884 and ordinary reinforcement wire of class BP-1 according to GOST 6727. 1.3.7. Rods of strained fittings of the class A-III B, A-IV, A - V and A T - IVC can be docked contact butt welding In accordance with the requirements of GOST 14098. Welded joints should be placed from the slabs no further than a quarter of its length. 1.3.8. The values \u200b\u200bof actual voltage deviations in the strained fittings should not exceed the limit set in the working drawings or standards on the plates. 1.3.9. The shape and dimensions of reinforcement and mortgage products and their position in the plates must comply with the work drawings or standards on these plates. 1.3.10. The values \u200b\u200bof real deviations of geometric plates parameters should not exceed the limit specified in Table. 1. 1.3.11. The distinction difference of the pre-stressed plates of the same brand on the bearing capacity and the strained fittings should not exceed mm: 10 - with the length of the plates to 6000 mm; 20 »» »» 12000 mm; 30 »» »» 18000 mm.
Table 1
|
Name of deviation of the geometric parameter |
Name of geometric parameter |
Previous Off |
| Line-sized deviation | Plate length: | |
| 2990 and less | ||
| 5970 | ||
| 11960 | ||
| 17940, 17960 | ||
| Plate width | ||
| Plate height: | ||
| up to 450 included. | ||
| sv. 450. | ||
| Shelf thickness | ||
| Rib size | ||
| Position of openings, holes and cutouts | ||
| Position of mortgage products: | ||
| In the plane of the slab: | ||
| Supporting products | ||
| Additional products | ||
| From plane plate | ||
| Deviation from straightness of the profile of external side surfaces of longitudinal ribs plates on their entire length | Plate length: | |
| 1490, 2990 | ||
| 5970 | ||
| 11960 | ||
| 17940, 17960 |
2. Acceptance
2.1. Acceptance of plates - according to GOST 13015.1 and this standard. At the same time, the plates take: according to the results of periodic tests - in terms of strength, stiffness and crack-resistant plates, frost resistance of concrete, porosity of a compacted mixture of light concrete, as well as on the waterproof of concrete plates intended for operation under the conditions of exposure to the aggressive gaseous medium; According to the results of acceptance tests - in terms of concrete strength (class or concrete brand, for compressive strength, transfer and selling strength), the average density of light concrete, the correspondence of the reinforcement and mortgage products, the working drawings, the strength of welded joints, the accuracy of geometric parameters, protective thickness The layer of concrete to reinforcement, the width of the disclosure of technological cracks, the category of concrete surface. 2.2. Periodic testing of the loading of pre-stressed stoves to control their strength, rigidity and crack resistance is carried out before the start of mass production of plates and later - when making constructive changes in them and when the manufacturing technology changes in accordance with the requirements of GOST 13015.1. In the process of serial production of plates, loading tests are carried out at least once a year. Testing plates 5970 mm long and less in the process of their mass production may not be carried out if non-destructive testing is carried out in accordance with GOST 13015.1. 2.3. Concrete tests in the indicator of porosity (volume of inter-rigid voids) of a compacted mixture of light concrete should be carried out at least once a month. 2.4. Plates in terms of accuracy of geometric parameters, the thickness of the protective layer of concrete to the reinforcement, the category of concrete surface and the width of the disclosure of technological cracks should be taken according to the results of selective control. 2.5. In the document on the quality of plates intended for operation in the conditions of exposure to aggressive gaseous media, the concrete brand on waterproof should additionally be shown (if this figure is specified in the order for the manufacture of plates).3. Monitoring methods
3.1. The strength of concrete plates should be determined according to GOST 10180 on a series of samples made from a concrete mix of the working composition and stored under conditions established by GOST 18105. When monitoring the strength of the concrete by non-destructive methods, the actual gear ratio and vacation strength of concrete on compression should be determined by the ultrasound method according to GOST 17624 or mechanical action devices according to GOST 22690, as well as other methods provided for by standards for concrete test methods. 3.2. Frost resistance of concrete plates should be determined according to GOST 10060 on a series of samples made from a concrete mix of the working composition. 3.3. Waterproof of concrete plates intended for operation under the conditions of exposure to an aggressive gaseous medium should be determined according to GOST 12730.0 and GOST 12730.5 on a series of samples made from a concrete mix of the work maker. 3.4. The porosity indicators of the compacted mixture of light concrete should be determined according to GOST 10181.0 and GOST 10181.3. 3.5. The average density of lightweight concrete plates should be determined according to GOST 12730.0, GOST 12730.1 or radioisotope method according to GOST 17623. 3.6. Control of welded reinforcement and mortgage products should be carried out according to GOST 10922 and GOST 23858. 3.7. The power of the stretch of reinforcement controlled at the end of the tension should be measured according to GOST 22362. 3.8. Dimensions and deviations from the rectinity of plates surfaces, the width of the disclosure of technological cracks, the sizes of the shells, the influx, and concrete slabs should be checked by methods set by GOST 26433.0 and GOST 26433.1. 3.9. The dimensions and position of the reinforcement and mortgage products, as well as the thickness of the protective layer of concrete to fittings, should be determined according to GOST 17625 and GOST 22904. In the absence of the necessary devices, cutting down the furrows and exposing the plates reinforcement with the subsequent sealing of the furrow.4. Transportation and storage
4.1. Transport and store plates should be transported in accordance with the requirements of GOST 13015.4 and this standard. 4.2. Plates should be transported and stored in the working (horizontal) position in the stacks with the support plates for four points. The height of the stacks of plates during their storage should not exceed 2.5 m. 4.3. The lining under the ribbed plates with a flat horizontal top surface and laying between them in the stack should be placed vertically one side at a distance of no more than 500 mm from the slab end. Lining and gaskets under flat plates should be placed in the support part of the plate. 4.4. Storage and transportation of plates with a flat duplex or vaulted upper surface should be carried out using special devices that provide a description of the plates in the zone of supporting mortgage products or steel anchors (in the shell plates) on cantilever tables or metal beams. When storing the plates in one row in height on the aligned surface of the floor under the corner mortgage products or anchors should be laid wooden gaskets with a width of 200 mm; All gaskets must have the same thickness of at least 50 mm. 4.5. Lifting plates 6 M long and more should be carried out by special traverses (with capturing for mounting loops or luminous parts), providing a uniform distribution of the load on all four loops of the raised plate and guaranteeing the absence of a loop bending and adherence to the angle of slings in accordance with the features. 1. It is allowed to produce plates with a length of 6 m four-track slats with a tilt of sling slots at least 45 to the horizon.
Heck. 1 4.6. Ribbed and flat plates up to 3 m long should be transported laid in stacks and fixed from displacements with stretch marks for mounting loops Plates.4.7. When transporting plates with a length of more than 3 m railway transport, it is not allowed to use loading schemes, covering the stack stack with stretch marks, tested for mounting hinges of the plates.
APPENDIX
Mandatory
Form and main sizes
table 2
|
Designation of size plate |
Main Sizes Plate, mm |
Drawing number plate |
Designation of a series of work drawings or standard |
|||||||
|
height on the support |
||||||||||
|
Plates of PG, PV, PF, PS, Pl |
||||||||||
|
Plates of types of pound, pof, pos, floor |
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|
Plates of types of pr, pp |
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Stove size 1PG6.
Heck. 2.
Plate of size 1PV6 with open-diameter 400, 700 or 1000 mm
Heck. 3.
Stove size 2PG6
Heck. four
Plate of size 2PV6 with open-diameter 400, 700 or 1000 mm
Heck. five
Scoop size 3PG6.
Heck. 6.
Scoop size 3PV6.
With an open diameter of 400 or 700 mm
With an open diameter of 1000 or 1450 mm
Heck. 7.
Size Size 3 PF6 with open dimensions 2600 '2700 mm
Size Size 3 PL
Heck. 8
Heck. nine
Plate of size 4PG6
Heck. ten
400, 700 or 1000 mm sizzy 4PV6 plate
Heck. eleven
Stove size 4pf6
With one open size of 1200 '1700 mm
With two open-dimensions of 1200 ´ 1700 mm
Heck. 12
Stove size 4pl6
Heck. thirteen
Scoop size 1PG12
Heck. 14
Plate of size 1FV12
With an open diameter of 400, 700 or 1000 mm
Heck. 15
With an open diameter of 1450 mm
Heck. 15 (continued)
Stove size 1 PP12
With four openings 1500 sizes ´ 1700 mm.
With two openings of 2600 '2700 mm
Heck. 16
Slab size 1pl12
Heck. 17.
Stove size 2PG12
Heck. 18
Plate of size 2PV12
With an open diameter of 400 or 700 mm
Heck. 19
WITH open diameters 1000 or 1450 mm
Heck. 19 (continued)
Plate of size 2 PF12.
With four openings with dimensions 1500 '1700 mm
With two openings with dimensions 2600 ´ 2700 mm
Heck. twenty
Plate of size 2pl12
Heck. 21.
Plate of size 1PG18.
Heck. 22.
Plate of size 1PV18 with openness located in the ends of the plate
Weep diameter 400, 700 or 1000 mm
Weep diameter 1450 mm.
Heck. 23.
1PV18 Size Plate with opening in the middle of the slab
Opening, diameter 400, 700 or 1000 mm
Weep diameter 1450 mm
Heck. 24.
Plate 1 PP18 with openings size 1400 ´ 1700 mm
WITH four openings
With two openings
Heck. 25.
Side size 1 PP18 with openings of 2800 '2700 mm
WITH two openings
With one opening
Heck. 26.
Plate of size 1PS18.
Heck. 27.
Side size 1pl18.
Heck. 28.
Plate sizzy Pue18.
Heck. 29.
Plate of size pov18
With one open diameter 400, 700, 1000 or 1450 mm
With two openings with a diameter of 400, 700, 1000 or 1450 mm
Scoop size 1PP
Heck. 38
Plate size 2PP
Heck. 39.
Stove size 3PG12
Scoop size 3PV12
Scoop size 3pl12
Information details
1. Developed and submitted by the Central Research and Research and Design and Experimental Institute of Industrial Buildings and Structures (TsNIipromzdania) State Building of the USSR Performers V. A. Bazhanova (head of the topic); A. Ya. Rosenblum; N. M. Grimailo; G. I. Berdichevsky, Dr. R. tehn sciences; And A. Lights, Cand. tehn sciences; M. G. Korevitskaya, Cand. tehn sciences; L. S. Xiannut, Cand. tehn sciences; V. A. Kozlov; A. P. Fool; M. A. Yankelevich, Dr. tech. Sciences A. D. Lieberman, Cand. tehn sciences; A. V. Shapiro; I. N. Kotov; V.I. Pimenova; E. I. Sergo; V.I. Dencyikov (Changed. Editorial). 2. APPROVED AND INTRODUCED RESOLUTION OF THE STATE CONSTRUCTION COMMITTEE OF THE USSR of 27.02.89 № 3 3. Entered for the first time 4. Reference regulatory and technical documents|
Point number, subparagraph, applications |
Point number, subparagraph, application |
||
| GOST 5781-82 | GOST 17623-87 | ||
| GOST 6727-80 | GOST 17624-87 | ||
| GOST 7348-81 | GOST 17625-83 | ||
| GOST 10060-87 | GOST 18105-86 | ||
| GOST 10180-78 | GOST 22362-77 | ||
| GOST 10181.0-81 | GOST 22690-88. | ||
| GOST 10181.3-81 | GOST 22701.0-77- | ||
| GOST 10884-81 | GOST 22701.5-77 |
appendix |
|
| GOST 10922-75 | |||
| GOST 12730.0-78 | GOST 22701.6-79 | ||
| GOST 12730.1-78 | GOST 22701.7-81 | ||
| GOST 12730.5-84 | GOST 22904-78 | ||
| GOST 13015.0-83 | GOST 23009-78. | ||
| GOST 13015.1-81 | GOST 23858-79 | ||
| GOST 13015.2-81 | GOST 25820-83 | ||
| GOST 13015.4-84 | GOST 26433.0-85 | ||
| GOST 13840-68 | GOST 26433.1-89 | ||
| GOST 14098-85 | GOST 26633-85 |
During the construction of almost all buildings, for the device of horizontal jumpers and ensuring the design of the necessary stiffness, the slabs of overlapping are used. This method allows you to speed up the assembly and significantly reduce costs. Ribbed P-shaped panels, with equal flat parameters, significantly won in ease and flexibility, which causes their popularity when erecting houses.
To perform various works, certain types of overlaps are used. During the construction of residential buildings, flat, solid or hollow plates are indispensable, and for industrial buildings - ribbed. Such overlaps of the pouring of the concrete mixture into the metal form in which the frame of the pre-heated rods and the reinforcing mesh and the installed mounting loops are made. Additional strength is achieved due to the sealing of the mixture with vibration, followed by temperature-humid processing and concoction for 4 weeks.
Standard P-shaped overlap plates designed for heavy loads are performed from high-quality concrete with mandatory reinforcement. The design feature is the presence of ribs that are located in one or two directions from below the flat surface. The P-shaped form provides maximum strength when the bending load, but the resulting ribbed bottom narrows the scope of application of such plates: in residential buildings, they are usually used only for the device of attic and basements, where such an uneven ceiling is allowed. These panels are also popular for roofs of garages.
Parameters, marking
In order to ensure the quality assurances necessary for the construction, the technical characteristics of the slabs of the overlap must comply with the standard requirements:
- manufacture of heavy or lightweight concrete;
- permissible temperature operation - from -40 to +50 ˚С;
- use in seismic activity zones by force to 9 points;
- the use of class A-III fittings.
Several modifications of the concrete are produced, depending on the installation method: 1P is based on the shelves of the building rheel, and 2P are placed on top of the supports. In the labeling of P-shaped plates, it is indicated: the name, sizes, the fittings class used in the manufacture, the type of concrete, the calculated bearing capacity and data on the holes for the installation of ventilation.
Varieties and sizes
Typical dimensions of panels are 3x6 or 3x12 m, with a height of 300 or 400 mm. It is also provided for the performance of good plates, the width of 1.5 m. They have a mass in the range from 1.3 to 2.5 ta, based on the components used. They are selected: configuration, sizes and weight of P-shaped stoves, in accordance with the characteristics of the construction of the building and the possibilities of delivery to the place of installation from production. Depending on the purpose and presence of technological holes, several types are distinguished:
- PV - with opening in the shelf under the air duct fan;
- PRTM, calculated for operation under heavy loads; It is made only from heavy concrete with the use of intense reinforcement;
- PL - plates for mounting the light-graduated roof;
- PF - having holes for inserting anti-aircraft lamps;
- PKG - large-pointed reinforced concrete overlapping of increased strength;
- GHG - such plates have a P-shaped section of the trapezoidal form without additional holes or recesses;
- P and PR - general designation ribbed plates.
When calculating floors, the conditions of operation of the building, climatic and seismological features, types of loads acting on the design are taken into account.
Storage and transportation
Finished P-shaped products must be folded on stacks in a horizontal surface. Under the bottom layer and between individual panels are put on wooden planks. When transporting the plates are located in the working position, separated by gaskets and are rigidly attached, in order to prevent displacement. For transportation, specially equipped machines are used for overall cargo.
FEATURES OF MONTAGE
When laying large reinforced concrete products, a tower or car lifting crane is used. If a inter-storey overlap Made from P-shaped plates, a technique is necessary, designed to increase the cargo of the appropriate weight to the desired height. The mount is performed using hinges for rigging and installation work.
The overlaps are installed in several stages:
- The surfaces or ends on which the panels will be mounted are covered with a layer of fresh cement mortar.
- The panel with four slop is hung on the hook in a horizontal position and rises to the desired height.
- The hanging plate is aligned and installed in place. It is important to produce these works quickly, not allowing the soak of cement.
- All panels are stacked exactly, withstanding the slot of no more than 70 mm, which is then poured with a solution to obtain a smooth surface.
- The mounting loops of the neighboring plates are sealed with a steel rod, and also join an anchors to the wall of the house.
The result is a flat flat surface. If there is a need to remove the unnecessary part, for example, to shorten the stove or cut the hatch, you can use a simple grinder with discs on concrete and metal (for cutting fittings) and scrap.
Cost of products ZBBK.
Special requirements are presented to the production of overlaps. Not every LCBC is able to provide the release of so overall P-shaped products in compliance with all strength parameters. In addition, with their manufacture, only high-quality concrete and special fittings are used, which is noticeably reflected in the cost of finished products.
| Mark. | Length, mm. | Width, mm. | Height, mm. | Weight, kg | Price, ruble |
| 2 PG6-3A. | 5 970 | 1 490 | 300 | 1 500 | 1 300 |
| 2PV6-5A-VT. | 17 000 | ||||
| 2PV6-5TVT | 2 000 | 21 000 | |||
| 3PG6-5TVT. | 2 980 | 2 680 | 37 000 | ||
| 3PV6-5ATVT. | 3 200 | 49 000 |
Usually, each LGBC provides a price list to its product having a tabular form. The cost of P-shaped slabs of overlapping, reinforced by thermally hardened steel V class, is sufficiently high, but the strength characteristics are justified. If you plan to install in non-critical placements, you can buy a used overlap plate, their price will be significantly lower than new (from 500 rubles per 1 m2).
Especially responsible structures used in high-rise construction should be selected exclusively by specialists who have appropriate qualifications. Only with the right choice of parameters of the overlap panels is guaranteed the strength of the finished structure.
Stove ribbed PG-1 ATVIT
The stove without openings in the shelf for the device overlap of industrial and auxiliary production buildings. A single plate size - 3x6 meters, satisfies most of the typical solutions of industrial objects with a column step of 6 m. The quadruginous plate with the presence of cruelty ribs allows you to create coatings capable of carrying out loads from 150 kgf / m2. The overlaps of ribbed designs apply to today almost everywhere, in cases where it is necessary to arrange reliable overlap of industrial buildings. Ribbed GHG 1 stove ATVIT is suitable for coating both heated and unheard buildings, built in any climatic conditions. The calculated seismicity of objects is permissible to 9 points inclusive.
Housing construction rarely uses ribbed stoves due to their aesthetic imperfection - a non-standard form and the presence of protruding beams makes uncomfortable ceilings of future rooms. The production of ribbed plates is provided with a pre-voltage of reinforcement, such plates are used to cover beams, farms, walls and rafting structures. If you need to install the roof fans and deflectors, it is recommended to buy a stove ribbon with a PV hole.
Stressful ribbed plates are much better confronted by static loads, in comparison with ordinary flat crowded plates PC. Such strength is explained by the presence of rigidity in the longitudinal sides of the plate. Ribbed reinforced concrete plate has a P-shaped section, a height of 370 mm, the thickness of the shelf is 300 mm. The presence of ribbed overlaps in the industrial object can significantly increase the permissible loads on the entire design. Such a form allows the ribbed plate to work well on the bend, but limits the use of ribbed slabs in housing construction. Ribbed plates according to GOST 22701.0-77-22701.5-77. They are manufactured taking into account all technological subtleties, under the gradual quality control, therefore, the reliability of PG-1 atvit plates is guaranteed by the manufacturer. All the ribbed zhb tiles are made on our website, you can buy ribbed plates to implement any design solutions.
For various objects, coating coating plates are made of heavy concrete or concrete on porous aggregates (this is reflected in the plates marking) strength M250-M400. As concrete on porous aggregates, a ceramzite concrete, england-co-concrete or crypton-concrete density of 1850 kg / m3 is selected. The choice of ribbed slabs depends on the climatic conditions for the construction and mode of operation of the plate. Heavy concrete plates are capable of carrying maximum loads and is well opposed to moisture and aggressive media, and the plates on porous aggregates have a smaller mass and thermal conductivity, but differ in high water absorption and lesser corrosion resistance. Additions and additives are introduced into the concrete mix for improving consumer characteristics and increasing the service life of the plates. Plasticizing, gasovaking and other additives increase the density of the concrete surface of the plate, so the ribbed PG.1 plates ATVIt differ in durability and wear resistance. For additional secondary protection, the surface of the plate is hydrophobized. Remember that according to GOST 22701.0-77-22701.5-77. , vacation strength of concrete plates ribbeds at least 70% of the brand.
The drawing of the ribbed plate can be found in the GOST-type album 22701.0-77-22701.5-77. Plates of coating ribbed are produced with a variety of reinforcement, which determines the bearing capacity of the plate. Reinforcement with welded grids and frames made of steel A-III and 6000 mm long-strained rods from steel at-V, A-VI, AT-IVC and A-IV. Plates of coating ribbed, working in aggressive environments reinforced steel resistant to corrosion cracking. All steel stove parts have a protective anti-corrosion coating. Protective coverings also have all mortgage products (anchor) and reinforcement of reinforcement, which are included in the design of ribbed plates for connecting with frame elements and other overlaps. In addition, the stove may have mortgage products for fastening parapets and fastening the plates to the rafter structures. The thickness of the protective layer of concrete to the reinforcement from 1 to 2 cm depending on the product size. The price of the slab overlapping ribbed Depends on the consumption of steel, concrete, as well as from the complexity of the manufacture of the progress.
Buy Plates of overlapping PG-1 ATVIT at affordable prices with delivery to your object you can directly on this page. Add the goods to the basket and place an application. Our managers will help you calculate and place an order.
In addition, the ribbed stove must match its design dimensions. Deviations in length are allowed not more than 6 mm, in width of no more than 5 mm and not more than 3 mm in height. The coating plates along the entire length must maintain straightness and plane, the maximum deviation can be no more than 5 mm. The deviation of the thickness of the concrete layer to the reinforcement is not more than 3-5 mm. Fat and rusty stains are not allowed. Concrete surface The ribbed plate should not have cracks width more than 0.1 mm (shrinking), the cracks of greater disclosure threaten the integrity of the slab. The mass oscillation of the slab should not exceed 7%.
On the surface of the ribbed plate there should be no large amount of shells, influx and female concrete more than 2 cm, the ribs of the ribbed slabs should not be near.
After the ribbed plates were delivered to the object, spend acceptancetests. At this point, ribbed plates are evaluated by indicators :
- concrete strength (concrete class for compressive strength, gear and vacation strength),
- medium density of light concrete;
- compliance of reinforcement and mortgage products;
- the strength of welded connections;
- accuracy of overall dimensions;
- the thickness of the protective layer of concrete to the reinforcement,
- the presence and width of possible cracks.
- The appearance of the ribbed GHG plate.
According to GOST 22701.0-77-22701.5-77. , the batch of ribbed slabs must accompany technical certificate. This document allows you to contain information about all the main specifications Ribbed plates, data on the date and material of the manufacture of concrete products, and additionally contain a brand of concrete on frost resistance and waterproof (in case of use reinforced concrete plates Under the influence of aggressive media). Some manufacturers also guarantees on their floors plates.
Transportation and storage
Storage and transport Ribbed PG-1 ATVIT plates, like many other products of the progress, in a horizontal working position. When stored, the stack of ribbed PG plates should not exceed 2.5 meters high (no more than 7 plates), in order to avoid the destruction of the underlying plates. To preserve the integrity of the plates during the transportation, they are securely fixed, excluding the possibility of their displacement. In places location of the support and mortgage products between the plates, wooden gaskets are placed, a thickness of at least 30 mm. The careful transportation of ribbed plates without displacements and blows will ensure delivery of products to the installation is safe. The logistics department of our company provides the supply of overall and oversized plates to anywhere in the country.
