Machine Translated by Google GOST 27321-87 INTERSTATE STANDARD RACK SCAFFOLDING FOR CONSTRUCTION AND ASSEMBLY WORKS TECHNICAL CONDITIONS Official edition INK STANDARDS PUBLISHING HOUSE Moscow fashion lace Machine Translated by Google UDC 69.057.64: 006.354 Group G30 M E F G O S D A R S T V E N S STANDARD SCAFFOLDING RACK AND ADDED FOR CONSTRUCTION AND ASSEMBLY WORKS GOST Specifications 27321-87 Demountable tubular scaflokl for constmclional work. Specifications OKU 5 2 6 0 0 0 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 1.1. Scaffolding must meet all the requirements of GOST 24258 and the requirements set forth in relevant sections of this standard. Scaffolding must be manufactured in accordance with the requirements of this standard according to design documentation approved in the prescribed manner. 1.2. B a sic param eters and dimen sions 1.2.1. Types, basic parameters and sizes of scaffolding must correspond to those indicated in Table. 1. 1.2.2. Establish the following structure of the symbol for scaffold marks. X X ; X Scaffold type designation-:--------------------------------------------- --1 Normative surface load. Pa Maximum height of scaffolding, m----------------------------------------------------- ------------------------------- Designation of this standard-------------------------------------------------------- ----------------------------------------Table I Dimensions in meters Type Name forests Standard type surface load. P a (k g Minimal Max. scaffold height e / m 2) 1 0 0 0 (1 0 0 ). lepkh _ pritavnyhomu- 2 0 0 0 ( 2 0 0 ). tovs 2 5 0 0 ( 2 5 0 ), lepsh L e sa s g o s ch n s pritavnypts- 3 0 0 0 (3 0 0 ). Minimal (pr o x o da) in the light you honeycomb tier (passage) in c not iv 1.0 1.9 width and r and n a tier Step tiers 100 0.5 ; 1.0; 20 80 5 0 0 0 (5 0 0 ) r e and s Official edition Reprint prohibited £> Standards Publishing, 1987 © I P K Standards Publishing, 2002 Machine Translated by Google GOST 27321-87 S. 2 An example of a symbol for scaffolding rack-mounted clamp with standard with a surface load of 2000 Pa and a maximum height of 60 m: L S IH 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 25 0 0 -4 0 GOST 27321-87 1.3. Characteristics 1.3.1. Scaffolding must be manufactured in climatic version U in accordance with GOST 15150, with the lower temperature limit limited to minus 40 *C. 1.3.2. For the manufacture of scaffolding elements, tr\b according to GOST 3262 and GOST 10704 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 listed in Table. 2. 1.3.5. Scaffolding flooring must withstand the load corresponding to the brand of scaffolding. Table 2 Steel grade T and p forest Bearing elements (pillars, transoms removed) H om uty, sh you ri, fences and yar. Pipes no GO S T 10704 LSPH 20 according to GOST 1050: StZpsb. StZsp5 according StZpsb, StZsp5 according to GOST 380 to GOST 380 LSPS 20 according to GOST 1050: VStZpsb, VstZsp5 according to GOST 380 VStZpsb. VstZsp5 according to GOST 380 Notes: 1. In agreement with the developer of technical documentation, it is allowed to use steels of other grades, the mechanical and chemical properties of which should not be lower than those indicated in Table. 2. 2. Steels used for the manufacture of scaffolding must have impact strength at a temperature minus 40 'C ns less than 3 10* J/m2. Impact strength tests should be carried out in accordance with GOST 9454. Wooden boards for scaffolding flooring must be made of coniferous boards of the 2nd grade according to GOST 84X6. subjected to antiseptic protection. The wooden boards of the scaffolding and the side railing of the scaffolding should be subjected to deep impregnation with flame retardant composition. 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 must withstand a concentrated static load of 700 N (70 kg) 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 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 kg) 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 the ascent and descent of people, scaffolding must be equipped with ladders in accordance with GOST 26887, 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. Machine Translated by Google S. 3 GOST 27321-87 1.3.16. Signal coloring of forests - according to GOST 12.4.0264. 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 trans porting and storage of forests. 1.4.3. Upon agreement with the customer, scaffolding can be supplied without decking boards. 1.4.4. The volume of the scaffolding set for delivery must be: 500. 1000. 1500 and 2000 m2 (area projections of scaffolding on the wall of the building). 1.5. Marking 1.5.1. The main load-bearing elements of scaffolding must be marked. Marking is applied in a way that preserves it throughout the entire life of the scaffold. 1.5.2. The marking must contain the following data: - trademark (if any) and the name of the manufacturer; - product designation (brand); - dead set of scaffolding; - 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. 1.5.4. The tag marking must contain the following data: - trademark (if any) and the name of the manufacturer; - product designation (brand); - number of the scaffolding set; - date of manufacture (month, year); - mass. 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 with twisting (at least two turns). 1.6.2. Small parts (clamps, anchors, etc.) must be packed in wooden boxes in accordance with GOST 18617 or returnable containers. 1.6.3. Scaffolding, supplied by agreement with the customer in containers, for their transportation storage and storage are not additionally packaged. 1.6.4. The documentation included in the delivery set must be wrapped in a bag of polyethylene film in accordance with GOST 10354 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. In order 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 testing 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 that has passed acceptance. accurate tests, out of 100 manufactured, but at least once every three years. 2.5. Periodic testing should include: - checking the mass of scaffolding; - control assembly of scaffolding; - testing scaffolding for strength and stability. * GOST' R 12.4.026-2001 applies in the Russian Federation. Machine Translated by Google GOST 27321-87 S. 4 2.6. Strength and stability tests 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 the 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, a metal ruler in accordance with GOST 427, a caliper in accordance with GOST 166 or other tools that ensure measurement accuracy up to I mm and verified by metrological organizations of national construction authorities of the CIS countries in accordance with the requirements of GOST 8.002 * . 3.2. The quality of welds is checked visually in accordance with GOST 3242. 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 should be stored indoors or under a canopy on a lining kah, excluding contact with the ground. 4.5. Scaffolding is transported and stored in accordance with GOST 15150 according to the group of storage conditions OL4 (in terms of the impact of climatic environmental factors). 5. INSTRUCTIONS FOR USE Scaffolding must be operated in accordance with SNiP Sh-4 and operating instructions for specific types of scaffolding. 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, and 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 scaffolding elements that have become unusable due to his fault: replacement must be carried out within 1 month from the date of receipt of the notification. In the Russian Federation, PR 50.2.002-94 is in force. Machine Translated by Google S. 5 GOST 27321-87 INFORMATION DATA 1. DEVELOPED AND INTRODUCED by the State Construction Committee of the USSR 2. APPROVED AND PUT INTO EFFECT by the Decree of the State Construction Co. Committee of the USSR dated 03.06.87 No. 107 3. INTRODUCED FOR THE FIRST TIME 4. REFERENCES TO REGULATIONS AND TECHNICAL DOCUMENTS Designation N T D . to which a link is given GOST 8.002-86 GOST 12.4.026-76 GOST 166-89 GOST 380-94 GOST 427-75 GOST 1050-88 GOST 3242-79 GOST 3262-75 GOST 3282-74 GOST 7502-98 GOST 8486-86 GOST 9454-78 GOST 10354-82 GOST 10704-91 GOST 14192-% GOST 15150-69 GOST 18617-83 GOST 24258-88 GOST 26887-86 SNiP 111-4-80 SN 305-77 5. REPUBLICATION. February 2002 Number of section, paragraph 3.1 1.3.16 3.1 1.3.4 3.1 1.3.4 3.2 1.3.2 1.6.1 3.1 1.3.5 1.3.4 1.6.4 1.3.2. 1.3.4 1.5.3 1.3.1, 4.5 1.6.2 1.1 1.3.14 5 1.3.15 Machine Translated by Google Editor V.P. Ogurtsov Technical editor L . L. Gust a Rector V.II. Kanurkiya K o m pu ternaya transfer N.L. llojeuK iinou Above. l and c. No. 02354 dated 07/14/2000. From lano p set 02/28/2002. Signed and dignified and printed on 22.03.2002. At st. oven I . 0.93. In h.-ihya.d. 0.57. T i r a * 140 copies. From 4S00. Zach. 264. I P K I zei s y standart , h llp ://» ww .slan d ariU .tu 107076 Moscow. 14, Kolodezny lane. e mail: info0xtandard)..ni N a n o n o u t Publishing house on P E V M F and l and al I P K I alateletno standards - type. Moscow Printer, 103062 Moscow. L orlin lane. 6. P lr Nr 080102 GOST 27321-87
