STATE STANDARD OF THE UNION OF THE SSR
RACK SCAFFOLDING FOR CONSTRUCTION AND ASSEMBLY WORKS
TECHNICAL CONDITIONS
GOST27321-87
USSR STATE CONSTRUCTION COMMITTEE
STATEYYSTANDARDTUNION SSR
RACK SCAFFOLDING FOR
CONSTRUCTION AND INSTALLATIONWORKSGOST
Specifications 27321-87
Demountable tubular scaffold for construction work.
Introduction date 01.0 1 .89
Non-compliance with the standard is punishable by law
This standard applies to rack-mounted scaffolding made of steel pipes used in the construction, reconstruction and repair of buildings and structures for the placement of working materials and materials directly in the area of construction and installation work.
1. TECHNICAL REQUIREMENTS
1.1. Scaffolding must meet all the requirements of GOST 24258-80 and the requirements set forth in the relevant sections of this standard.
Scaffolding shall be manufactured in accordance with the requirements of this standard for design documentation, approved in the prescribed manner.
1.2. Main parameters and dimensions
1.2.1. Types, basic parameters and sizes of scaffolding must correspond to those indicated in Table 1.
Dimensions, m
Type designation | Type name | Pa (kgf / m 2) | Max scaffolding height | Minimum width of the tier (pass-yes) in the clear | Minimal height of the tier (pass-yes) in the clear | Tier pitch |
Rack-mounted scaffolding | ||||||
clamp | 2000 (200), 2500 (250), | |||||
Rack scaffolding | ||||||
attached | ||||||
pin |
1.2.2. Establish the following structure of the conditional designation of scaffold marks.
Example symbol scaffolding rack-mounted clamp with normative value surface load 2000 Pa and maximum height 60 m:
LSPH2000-60 GOST27321-87
The same, rack-mounted pin scaffolding with a standard surface load of 2500 Pa and a maximum height of 40 m:
LSPSH2500-40 GOST27321-87
1.3. Characteristics
1.3.1. Scaffolding must be manufactured in climatic version U according to GOST 15150-69, with the lower temperature limit limited to minus 40 °C.
1.3.2. For the manufacture of scaffolding elements, pipes according to GOST 3262-75 and GOST 10704-76 should be used.
1.3.3. Pipes for the manufacture of scaffolding elements must be without threading, straight, without dents, cracks and other defects that violate the strength of the elements.
1.3.4. The main elements of scaffolding, when exposed to low temperatures down to minus 40 ° C, should be made of steel grades indicated in Table 2.
table 2
Notes:
1. In agreement with the developer technical documentation it is allowed to use steels of other grades, mechanical and Chemical properties which should not be lower than those indicated in Table 2.
2. Steels used for the manufacture of scaffolding must have an impact strength at a temperature of minus 40 ° C not less than 3 ·10 5 J / m 2 Impact strength tests should be carried out in accordance with GOST 9454-78.
1.3.5. Scaffold flooring must withstand the load corresponding to the brand of scaffolding.
Wooden shields scaffolding flooring should be made of boards conifers 2nd grade according to GOST 8486-86, subjected to antiseptic protection.
The wooden boards of the flooring and the side railing of the scaffold flooring must be deeply impregnated with a fire retardant composition.
1.3.6. The service life of scaffolding must be at least 5 years.
1.3.7. Scaffolding must have fences that exclude the possibility of falling people and various objects.
1.3.8. The height of the railing of the fence must be at least 1.1 m.
1.3.9. The railing of the fence must withstand a concentrated static load of 700 N (70 kgf) applied in the middle of the element in a direction perpendicular to its axis, alternately in the horizontal and vertical planes.
1.3.10. The fence must have at least one intermediate horizontal element or mesh.
1.3.11. The height of the side railing of the scaffolding flooring must be at least 0.15 m.
1.3.12. All load-bearing horizontal scaffolding elements must withstand a concentrated static load of 1300 N (130 kgf) applied in the middle of the element.
1.3.13. Weight of scaffold assembly units at manual assembly should not be more than 30 kg.
1.3.14. For the ascent and descent of people, scaffolding must be equipped with ladders in accordance with GOST 26887-86, located at a distance of no more than 40 m from each other. Scaffolding less than 40 m long must be equipped with at least two ladders. The angle of inclination of the stairs to the horizontal surface should be no more than 60 °.
1.3.15. Scaffolding must be provided with lightning protection according to SN 305-77.
1.3.16. Signal coloring of forests - according to GOST 12.4.026-76.
1.4. Completeness
1.4.1. Scaffolding must be supplied complete. Package Included:
a set of scaffolding (racks, crossbars, etc., as well as fastenings to building structures);
passport with instruction manual.
1.4.2. By agreement with the customer, the delivery set includes containers for transportation and storage of scaffolding.
1.4.3. By agreement with the customer, scaffolding can be supplied without decking boards.
1.4.4. The volume of the scaffolding set for delivery should be: 500; 1000; 1500 and 2000 m 2 (scaffold projection area on the wall of the building).
1.5. Marking
1.5.1. The main load-bearing elements of scaffolding must be marked. The marking is applied in a way that preserves it during the entire life of the scaffolding.
1.5.2. The marking must contain the following data:
product designation (brand);
scaffold set number;
date of manufacture (month, year).
1.5.3. Each package and box (returnable packaging) or containers with scaffolding elements must have a label with a marking. The size of the tag, the location of the inscriptions, as well as the method and material for marking must comply with GOST 14192-77.
1:5.4. The tag marking must contain the following data:
trademark(if any) and the name of the manufacturer;
product designation (brand);
scaffold set number;
date of manufacture (month, year);
1.6. Package
1.6.1. Scaffolding elements are connected sorted by type (crossbars, racks, braces, etc.) into packages with wire with a diameter of at least 4 mm according to GOST 3282-74 with twisting (at least two turns).
1.6.2. Small parts (clamps, anchors, etc.) must be packed in wooden boxes according to GOST 18617-83 or returnable packaging.
1.6.3. Scaffolding supplied by agreement with the customer in containers for their transportation and storage is not additionally packaged.
1.6.4. The documentation included in the scope of delivery must be wrapped and the package must be polyethylene film in accordance with GOST 10354-82 and attached to the scaffolding set in a way that ensures its safety, or transferred to the consumer when he directly receives the scaffolding set.
2. ACCEPTANCE
2.1. To verify that scaffolding conforms to the requirements of this standard, the manufacturer shall carry out acceptance tests and periodic tests.
2.2. Acceptance tests should be subjected to each element of scaffolding by the piece.
2.3. Acceptance tests should include:
checking the quality of the manufactured scaffolding elements and establishing their compliance with the requirements of the design documentation;
checking the quality of welds;
quality control coatings;
verification of forest markings.
2.4. Periodic tests are carried out on one set of scaffolding that has passed acceptance tests, out of 100 manufactured, but at least once every three years.
2.5. Periodic testing should include:
verification of the mass of forests;
control assembly of scaffolding;
testing scaffolding for strength and stability.
2.6. Tests for strength and stability must be carried out in the working position of the scaffold. It is allowed to perform a control assembly and strength and stability tests on a fragment consisting of minimum set scaffolding (500 m 2), with a height of at least 20 m, with loads that completely imitate the loads that occur when scaffolding is installed at the maximum height.
3. CONTROL METHODS
3.1. The geometric dimensions of scaffolding and their elements are checked with a tape measure according to GOST 7502-80, a metal ruler according to GOST 427-75, a caliper according to GOST 166-80 or other tools that provide measurement accuracy up to 1 mm and verified metrological organizations of the State Standard of the USSR in accordance with the requirements of GOST 8 .002-86.
3.2. The quality of welds is checked visually for compliance with GOST 3242-79.
3.3. The color quality is determined visually.
4. TRANSPORT AND STORAGE
4.1. Transportation of scaffolding is carried out by transport of any kind, ensuring the safety of scaffolding elements from damage.
4.2. It is not allowed to dump products during unloading, transportation by portage and other actions that could cause damage to structural elements.
4.3. During transportation and storage, packages and boxes can be stacked on top of each other in no more than three tiers.
4.4. Scaffolding elements must be stored indoors or under a canopy on linings that exclude contact with the ground.
4.5. Scaffolding is transported and stored in accordance with GOST 15150-69 according to the group of storage conditions OZH4 (in terms of the impact of climatic environmental factors).
5. INSTRUCTIONS FOR USE
Forests must be operated in accordance with SNiP II - 4 - 80 and instructions for the operation of forests of specific types.
6. MANUFACTURER WARRANTY
6.1. The manufacturer guarantees the compliance of the scaffolding with the requirements of this standard, provided that the consumer observes the conditions of transportation, storage and operation. The warranty period of operation is 12 months from the date of commissioning of scaffolding, but no later than 6 months from the date of their receipt by the consumer.
6.2. The manufacturer, during the warranty period, repairs or replaces free of charge all elements of scaffolding that have become unusable through his fault; replacement must be made within 1 month from the date of receipt of the notification.
INFORMATION DATA
1 . DEVELOPED AND INTRODUCED by the State Construction Committee of the USSR
PERFORMERS
V. P. Sukhachev(topic leader) A. A. Gershbein, V. V. Bakonin
2. APPROVED AND INTRODUCED BY Decree of the State Construction Committee of the USSR dated 03.06.87 No. 107
3. INTRODUCED FOR THE FIRST TIME
4. REFERENCE REGULATORY AND TECHNICAL DOCUMENTS (NTD)
Number of paragraph, subparagraph |
|
GOST 8.002-86 | |
GOST 12.4.026-76 | |
GOST166-80 | |
GOST 427-75 | |
GOST 1050-74 | |
GOST 3242¾79 | |
GOST3262-75 | |
GOST3282-74 | |
GOST 7502-80 | |
GOST8486-86 | |
GOST9454-78 | |
GOST 10354-82 | |
GOST 10704-76 | |
GOST 14192-77 | |
GOST15150-69 | |
GOST 18617-83 | |
GOST24258-80 | |
GOST 26887-86 | |
SNiPIII-4-80 | |
STATE STANDARD OF THE UNION OF THE SSR STATE STANDARD OF THE UNION OF THE SSR SCAFFOLDING RACK ADDED FOR CONSTRUCTION AND ASSEMBLY WORKS TECHNICAL CONDITIONS GOST 2732187 STATE CONSTRUCTION COMMITTEE OF THE USSR Specifications Date of introduction 01.01.89 Non-compliance with the standard is punishable by law This standard applies to rack-mounted scaffolding made of steel pipes used in the construction, reconstruction and repair of buildings and structures to accommodate workers and materials directly in the area of construction and installation work. 1. TECHNICAL REQUIREMENTS 1.1. Scaffolding must meet all the requirements of GOST 24258-80 and the requirements set forth in the relevant sections of this standard. Scaffolding must be manufactured in accordance with the requirements of this standard according to the design documentation approved in the prescribed manner. 1.2. Basic parameters and dimensions 1.2.1. Types, basic parameters and sizes of scaffolding must correspond to those indicated in Table. 1. Table 1 Dimensions, m Type designation Type name Normative surface load, Pa (kgf/m2) Maximum height of scaffolding Minimum Width tier (passage) in the clearMinimum height of the tier (passage) in the light Tier spacingLSPKhRack attached scaffolding 1000 (100), 100 clamp 2000 (200), 2500 (250), 0.5; 1.0; LSPSH Rack scaffolding 3000 (300), 1.01.92.0 attached 5000 (500) 80 pin 1.2.2. Establish the following structure of the symbol for scaffold marks. An example of a symbol for scaffolding rack-mounted clamp with a standard surface load of 2000 Pa and a maximum height of 60 m: LSPKh 2000-60 GOST 27321-87 40 GOST 27321-87 1.3. Characteristics 1.3.1. Scaffolding must be made in climatic design U in accordance with GOST 15150-69, when the lower temperature limit is limited to minus 40 "C. without threading, straight, without dents, cracks and other defects that violate the strength of the elements 1.3.4. low temperatures up to minus 40°C should be made of steel grades listed in Table. 2. Table 2 Steel grade load-bearing elements(racks, communication crossbars) Type of scaffolding Pipes in accordance with GOST 1070476 Clamps, pins, fences, etc. LSPH 20 in accordance with GOST 105074; St3ps6, St3sp5 according to GOST 380-71 St3ps6, St3sp5 according to GOST 380-71LSPSh 20 according to GOST 1050-74; Vst3ps6, Vst3sp5 according to GOST 380-71 Vst3ps6, Vst3sp5 according to GOST 380-71 2. 2. Steels used for the manufacture of scaffolding must have an impact strength at a temperature of minus 40 ° C of at least 3 (105 J / m2). Impact strength tests should be carried out in accordance with GOST 9454-78. corresponding to the brand of scaffolding.Wooden boards of scaffolding flooring must be made of coniferous boards of the 2nd grade according to GOST 8486-86, subjected to antiseptic protection.Wooden boards of flooring and side railing of scaffolding flooring must be deeply impregnated with a fire retardant composition.1.3.6. 1.3.7 Scaffolding must be equipped with railings to prevent people and various objects from falling 1.3.8 The height of railing railings must be at least 1.1 m 1.3.9 Railing railings must withstand concentrated static load of 700 N (70 kgf) applied in the middle of the element in the direction perpendicular to its axis, alternately in the horizontal and vertical planes. must have at least one intermediate horizontal element or grid. 1.3.11. The height of the side railing of the scaffolding flooring must be at least 0.15 m. 1.3.12. All load-bearing horizontal scaffolding elements must withstand a concentrated static load of 1300 N (130 kgf) applied in the middle of the element. 1.3.13. The weight of scaffold assembly units during manual assembly should not exceed 30 kg. 1.3.14. For lifting and lowering people, scaffolding must be equipped with ladders in accordance with GOST 26887-86, located at a distance of no more than 40 m from each other. Scaffolding less than 40 m long must be equipped with at least two ladders. The angle of inclination of the stairs to the horizontal surface should be no more than 60 °. 1.3.15. Scaffolding must be provided with lightning protection according to SN 305-77. 1.3.16. Signal coloring of forests - according to GOST 12.4.026-76. 1.4. Completeness 1.4.1. Scaffolding must be supplied complete. The scope of delivery includes: a set of scaffolding (racks, crossbars, etc., as well as attachments to building structures ); passport with instruction manual. 1.4.2. By agreement with the customer, the delivery set includes containers for transportation and storage of scaffolding. 1.4.3. By agreement with the customer, scaffolding can be supplied without decking boards. 1.4.4. The scope of the scaffolding set for delivery should be: 500; 1000; 1500 and 2000 m2 (scaffold projection area on the building wall). 1.5. Marking 1.5.1. The main load-bearing elements of scaffolding must be marked. The marking is applied in a way that preserves it throughout the entire life of the scaffolding. 1.5.2. The marking must contain the following data: trademark (if any) and the name of the manufacturer; product designation (brand); scaffold set number; date of manufacture (month, year). 1.5.3. Each package and box (returnable packaging) or containers with scaffolding elements must be labeled with a label. The size of the tag, the location of the inscriptions, as well as the method and material for marking must comply with GOST 14192-77. 1:5.4. The tag marking must contain the following data: trademark (if any) and the name of the manufacturer; product designation (brand); scaffold set number; date of manufacture (month, year); mass. 1.6. Packaging 1.6.1. Scaffolding elements are connected sorted by type (crossbars, racks, braces, etc.) into packages with wire with a diameter of at least 4 mm according to GOST 3282-74 with twisting (at least two turns). 1.6.2. Small parts (clamps, anchoring, etc.) must be packed in wooden boxes in accordance with GOST 18617-83 or returnable containers. 1.6.3. Scaffolding supplied by agreement with the customer in containers for their transportation and storage is not additionally packaged. 1.6.4. The documentation included in the delivery set must be wrapped and a bag of polyethylene film in accordance with GOST 10354-82 and attached to the scaffolding set in a way that ensures its safety, or handed over to the consumer upon direct receipt of the scaffolding set. 2. ACCEPTANCE 2.1. To verify that scaffolding conforms to the requirements of this standard, the manufacturer shall carry out acceptance and periodic tests. 2.2. Acceptance tests must be subjected to each element of scaffolding by the piece. 2.3. Acceptance tests should include: checking the quality of manufactured scaffolding elements and establishing their compliance with the requirements of design documentation; checking the quality of welds; checking the quality of paint and varnish coatings; verification of forest markings. 2.4. Periodic tests are carried out on one set of scaffolding, which has passed acceptance tests, out of 100 manufactured, but at least once every three years. 2.5. Periodic tests should include: checking the weight of the scaffold; control assembly of scaffolding; testing scaffolding for strength and stability. 2.6. Tests for strength and stability must be carried out in the working position of the scaffold. It is allowed to carry out control assembly and tests for strength and stability on a fragment consisting of a minimum set of scaffolding (500 m2), at least 20 m high, with loads that fully simulate the loads that occur when scaffolding is set to the maximum height. 3. CONTROL METHODS 3.1. The geometric dimensions of scaffolding and their elements are checked with a tape measure in accordance with GOST 7502-80, a metal ruler in accordance with GOST 427-75, a caliper in accordance with GOST 166-80 or other tools that provide measurement accuracy up to 1 mm and verified metrological organizations of the State Standard of the USSR in accordance with the requirements of GOST 8.002 -86. 3.2. The quality of welds is checked visually for compliance with GOST 3242-79. 3.3. The color quality is determined visually. 4. TRANSPORT AND STORAGE 4.1. Transportation of scaffolding is carried out by transport of any kind, ensuring the safety of scaffolding elements from damage. 4.2. It is not allowed to dump products during unloading, transportation by portage and other actions that could cause damage to structural elements. 4.3. During transportation and storage, packages and boxes can be stacked on top of each other in no more than three tiers. 4.4. Scaffolding elements must be stored indoors or under a canopy on linings that exclude contact with the ground. 4.5. Scaffolding is transported and stored in accordance with GOST 15150-69 according to the group of storage conditions OL4 (in terms of the impact of climatic environmental factors). 5. INSTRUCTIONS FOR OPERATION Scaffolding must be operated in accordance with SNiP II - 4 - 80 and instructions for operating scaffolds of specific types. 6. MANUFACTURER WARRANTY 6.1. The manufacturer guarantees the compliance of the scaffolding with the requirements of this standard, provided that the consumer observes the conditions of transportation, storage and operation. Warranty period of operation - 12 months from the date of putting the scaffolding into operation, but not later than 6 months from the date of their receipt by the consumer. 6.2. The manufacturer, during the warranty period, repairs or replaces free of charge all elements of scaffolding that have become unusable through his fault; replacement must be made within 1 month from the date of receipt of the notification. INFORMATION DATA 1. DEVELOPED AND INTRODUCED by the State Construction Committee of the USSR PERFORMERS V. P. Sukhachev (topic leader), A. A. Gershbein, VV Bakonin 2. APPROVED AND INTRODUCED BY Decree of the State Construction Committee of the USSR of 03.06.87 No. 107 subclause GOST 8.002-86 3.1 GOST 12.4.026-76 1.3.16 GOST 166-80 3.1 GOST 38071 1.3.4 GOST 427-75 3.1 GOST 1050-74 1 3.4 GOST 324279 3.2 GOST 3262-75 1.3.2 GOST 3282-74 1.6.1 GOST 7502-80 3.1 GOST 8486-86 1.3.5 GOST 9454-78 1.3.4 GOST 10354-82 1.6.4 GOST 10704-76 1.3.2, 1.3.4 GOST 14192-77 1.5.3 GOST 15150- 69 1.3.1, 4.5 GOST 18617-83 1.6.2 GOST 24258-80 1.1 GOST 26887-86 1.3.14 SNiP III-4-80 5 SN 30577 1.3.15
GOST 27321-87
INTERSTATE STANDARD
RACK SCAFFOLDING FOR
CONSTRUCTION AND ASSEMBLY WORKS
TECHNICAL CONDITIONS
IPK STANDARDS PUBLISHING HOUSE
Moscow
INTERSTATE STANDARD
Introduction date 01.01.89
This standard applies to rack-mounted scaffolding made of steel pipes used in the construction, reconstruction and repair of buildings and structures to accommodate workers and materials directly in the area of construction and installation work.
1. TECHNICAL REQUIREMENTS
1.2.2. Establish the following structure of the symbol for scaffold marks.
Table 1
Dimensions in meters
|
Type name |
Maximum scaffolding height |
The minimum width of the tier (passage) in the clear |
The minimum height of the tier (passage) in the clear |
Tier pitch |
||
|
Rack-mounted clamp scaffolding |
||||||
|
Rack-mounted pin scaffolding |
||||||
Symbol examplescaffolding rack attached collar with a standard value of the surface load of 2000 Pa and a maximum height of 60 m:
LSPH 2000-60 GOST 27321-87
The same, rack-mounted pin scaffolding with a standard surface load of 2500 Pa and a maximum height of 40 m:
LSPSh 2500-40 GOST 27321-87
1.3. Characteristics
table 2
|
Steel grade |
||
|
Bearing elements (racks, communication crossbars) |
Clamps, pins, fences, etc. |
|
|
2. Steels used for the manufacture of scaffolding must have an impact strength at a temperature of minus 40 ° C of at least 3 10 5 J / m 2. Impact strength tests should be carried out in accordance with GOST 9454. Wooden boards for scaffolding flooring should be made of coniferous boards of the 2nd grade according to GOST 8486, subjected to antiseptic protection. The wooden boards of the flooring and the side railing of the scaffolding flooring must be subjected to deep impregnation with a fire retardant compound. 1.3.6. The service life of scaffolding must be at least five years. 1.3.7. Scaffolding must have fences that exclude the possibility of falling people and various objects. 1.3.8. The height of the railing of the fence must be at least 1.1 m. 1.3.9. The railing of the fence must withstand a concentrated static load of 700 N (70 kgf) applied in the middle of the element in a direction perpendicular to its axis, alternately in the horizontal and vertical planes. 1.3.10. The fence must have at least one intermediate horizontal element or mesh. 1.3.11. The height of the side railing of the scaffolding flooring must be at least 0.15 m. 1.3.12. All load-bearing horizontal scaffolding elements must withstand a concentrated static load of 1300 N (130 kgf) applied in the middle of the element. 1.3.13. The weight of scaffold assembly units during manual assembly should not exceed 30 kg. 1.4. Completeness 1.4.1. Scaffolding must be supplied complete. Package Included: A set of scaffolding (racks, crossbars, etc., as well as fastenings to building structures); Passport with instruction manual. 1.4.2. By agreement with the customer, the delivery set includes containers for transporting and storing scaffolding. 1.4.3. By agreement with the customer, scaffolding can be supplied without decking boards. 1.4.4. The volume of the scaffolding set for delivery should be: 500, 1000, 1500 and 2000 m (scaffold projection area on the building wall). 1.5. Marking 1.5.1. The main load-bearing elements of scaffolding must be marked. The marking is applied in a way that preserves it throughout the entire life of the scaffolding. 1.5.2. The marking must contain the following data: Trademark (if any) and name of the manufacturer; Product designation (brand); Scaffold set number; Date of manufacture (month, year). |
||
STATE STANDARD OF THE UNION OF THE SSR
date in reference 0 1.01.89
This standard applies to rack-mounted scaffolding made of steel pipes used in the construction, reconstruction and repair of buildings and structures to accommodate workers and materials directly in the area of construction and installation works.
1. TECHNICAL REQUIREMENTS
1.1. Scaffolding must meet all the requirements of GOST 24258-80 and the requirements set forth in the relevant sections of this standard. Scaffolding must be manufactured in accordance with the requirements of this standard according to the design documentation approved in the prescribed manner. 1.2. Main parameters and dimensions 1.2.1. Types, basic parameters and sizes of scaffolding must correspond to those indicated in Table. one.Table 1
Dimensions, m
|
About the value of the type |
Type name |
Maximum you honeycomb scaffolding |
Minimum width of the tier (passage) in the clear |
Minimum clear height of a tier (passage) |
Tier pitch |
|
| Rack-mounted clamp scaffolding | ||||||
| Forest and rack-mount attached pin |
An example of a symbol for scaffolding rack-mounted clamp with a standard surface load of 2000 Pa and a maximum height of 60 m:
LSPH 2000-60 GOST 27321-87
The same, rack-mounted pin scaffolding with a standard surface load of 2500 Pa and a maximum height of 40 m:
LSPSh 2500-40 GOST 27321-87
1.3. Characteristics 1.3.1. The scaffolding must be manufactured in climatic design U in accordance with GOST 15150-69, with the lower temperature limit limited to minus 40 ° C. 1.3.2. For the manufacture of scaffolding elements, pipes must be used in accordance with GOST 3262-75 and GOST 10704-76. 1.3.3. Pipes for the manufacture of forest elements must be without threading, straight and without dents, cracks and other defects that violate the strength of the elements. 1.3.4. The main elements of scaffolding when exposed to low temperatures down to minus 40 °C should be made of steel grades indicated in Table. 2.
table 2
|
Scaffold type |
steel grade |
|
|
Bearing elements (racks, communication crossbars) |
Clamps, pins, fences, etc. |
|
|
Pipes according to GOST 10704-76 |
||
| 20 according to GOST 1050-74; St3ps6, St3sp5 according to GOST 380-71 | St3ps6, St3sp5 according to GOST 380-7 1 | 20 according to GOST 1050-74; Vst3ps6, Vst3sp5 according to GOST 380-71 | Vst3ps6, Vst3sp5 according to GOST 380-71 |
2. ACCEPTANCE
2.1. To verify that scaffolding conforms to the requirements of this standard, the manufacturer shall carry out acceptance and periodic tests. 2.2. Acceptance tests must be subjected to each element of scaffolding by the piece. 2.3. Acceptance tests should include: checking the quality of manufactured scaffolding elements and establishing their compliance with the requirements of design documentation; checking the quality of welded seams; checking the quality of paint and varnish coatings; verification of forest markings. 2.4. Periodic tests are carried out on one set of scaffolding, which has passed acceptance tests, out of 100 manufactured, but at least once every three years. 2.5. Periodic tests should include: checking the weight of the scaffold; control assembly of scaffolding; and testing scaffolding for strength and stability. 2.6. Tests for strength and stability must be carried out in the working position of the scaffold. It is allowed to carry out control assembly and tests for strength and stability on a fragment consisting of a minimum set of scaffolding (500 m 2), at least 20 m high, with loads that fully simulate the loads that occur when scaffolding is installed on maximum height.3. CONTROL METHODS
3.1. The geometric dimensions of scaffolding and their elements are checked with a tape measure in accordance with GOST 7502-80, a metal ruler in accordance with GOST 427-75, a compass rod in accordance with GOST 166-80 or other tools, providing them with measurement accuracy up to 1 mm and verified metrological and organizations of the State Standard of the USSR in accordance with the requirements of GOST 8.002-86. 3.2. The quality of welds is checked visually for compliance with GOST 3242-7 9. 3.3. The color quality is determined visually.4. TRANSPORT AND STORAGE
4.1. Transportation of scaffolding is carried out by transport of any kind, ensuring the safety of scaffolding elements from damage. 4.2. It is not allowed to dump products during unloading, transportation by dragging and other actions that could cause damage to structural elements. 4.3. During transportation and storage, packages and a box can be stacked on top of each other in no more than three tiers. 4.4. Scaffolding elements must be stored indoors or under a canopy on linings that exclude contact with the ground. 4.5. Scaffolding is transported and stored in accordance with GOST 15150-69 according to the group of storage conditions OZH4 (in terms of the impact of climatic environmental factors).5. INSTRUCTIONS FOR USE
Scaffolding must be operated in accordance with SNiP III-4-80 and instructions for operating scaffolding in specific types.6. MANUFACTURER WARRANTY
6.1. The manufacturer guarantees the compliance of the scaffolding with the requirements of this standard, provided that the consumer observes the conditions of transportation, storage and operation. Warranty period of operation - 12 months. from the date of putting the scaffolding into operation, but no later than 6 months. from the date of their receipt by the consumer. 6.2. The manufacturer, during the warranty period, repairs or replaces free of charge all elements of scaffolding that have become unusable through his fault; replacement must be made within 1 month. from the date of receipt of the notification.INFORMATION DATA
one . DEVELOPED AND INTRODUCED by the State Construction Committee of the USSR PERFORMERS V. P. Sukhachev (topic leader), A. A. Gershbein, V. V. Bakonin .87 No. 107 3. INTRODUCED FOR THE FIRST TIME 4. REFERENCE NORMATIVE AND TECHNICAL DOCUMENTS (NTD)|
The designation of the NTD to which the link is given |
