GOST R 57786-2017
ГОСТ Р 57786-2017
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Wooden glued laminated bearing structures. Visual sorting of laminates to strength classes
Конструкции деревянные клееные несущие. Визуальная сортировка слоев по классам прочности
Status: Effective - Introduced for the first time. IUS 2-2018
This standard applies to layers of elements of glued wooden structures made of coniferous wood, including glued along the length of the toothed glue joint according to GOST 19414 and / or the width of smooth fugue according to GOST 9330, sorted by durability by visual sorting. The standard establishes strength classes and methods for their determination for the rational use of sawn timber in obtaining layers of multilayer elements of glued structures manufactured according to GOST 20850 and classified by strength classes in accordance with the requirements of GOST 33081. The requirements of this standard should be used in design and technological documentation for establish the standard values of the strength of the layers and the strength of glued elements depending on them. The rules of visual sorting are used to ensure the specified strength classes of the layers in the manufacture of glued structural elements.
Настоящий стандарт распростра��яется на слои элементов деревянных клееных конструкций из древесины хвойных пород, в том числе склеенные по длине на зубчатом клеевом соединении по ГОСТ 19414 и/или по ширине на гладкую фугу по ГОСТ 9330, рассортированные по прочности методом визуальной сортировки. Стандарт устанавливает классы прочности и методы их определения в целях рационального использования пиломатериалов при получении слоев многослойных элементов клееных конструкций, изготовляемых по ГОСТ 20850 и классифицируемых по классам прочности в соответствии с требованиями ГОСТ 33081. Требования настоящего стандарта следует использовать в проектно-конструкторской и технологической документации для установления нормативных значений прочности слоев и зависящей от них прочности клееных элементов. Правила визуальной сортировки используют для обеспечения заданных классов прочности слоев при изготовлении клееных элементов конструкций
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Format: Electronic (pdf/doc)
Approved: Federal Agency for Technical Regulation and Metrology,
10/12/2017
SKU: RUSS288755
The Product is Contained in the Following Classifiers:
Construction (Max) »
Standards »
Other state standards used in construction »
91 Building materials and construction »
PromExpert »
SECTION I. TECHNICAL REGULATION »
V Testing and control »
2 Tests for external factors »
2.3 Testing of products in construction »
ISO classifier »
91 CONSTRUCTION MATERIALS AND CONSTRUCTION »
91.080 Structures of buildings »
91.080.20 Wooden structures »
National standards »
91 CONSTRUCTION MATERIALS AND CONSTRUCTION »
91.080 Structures of buildings »
91.080.20 Wooden structures »
The Document is Replaced With:
GOST R 57786-2024: Wood glued laminated load-bearing structures. Visual sorting of layers by strength classes
The Document References:
GOST 16483.1-84: Wood. Method for determination of density
GOST 16483.25-73: Wood. Determination method of modulus of elasticity in compression across fibres
GOST 16483.27-73: Wood. Determination method of modulus of elasticity in tension along fibres
GOST 16483.30-73: Wood. Method for determination of modulus of shear
GOST 16483.7-71: Wood. Methods for determination of moisture content
GOST 16588-91: Sawn products and wooden details. Methods for determining moisture content
GOST 19414-90: Solid glued wood. General requirements for glued finger joints
GOST 20850-2014: Wooden glued load bearing structures. General specifications
GOST 2140-81: Visible defects, of wood. Classification, terms and definitions, methods of measurement
GOST 21554.1-81: Sawn timber and blanks. Methods for determination of modulus of elasticity in static bending
GOST 21554.2-81: Sawn timber and blanks. Method for determination of ultimate strength in static bending
GOST 21554.3-82: Sawn timber and blanks. Method for control of strength at bending, tension and compression
GOST 21554.4-78: Sawn timber and semi-manufactures. Method for determining the ultimate strength in compression parallel to grain
GOST 21554.5-78: Sawn timber and semi-manufactures. Method for determining the ultimate strength in tension parallel to grain
GOST 21554.6-78: Sawn timber and semi-manufactures. Method for determining the ultimate strength in shearing parallel to grain
GOST 24454-80: Sawn timbers of coniferous species
GOST 33080-2014: Timber structures. Strength classes of structural sawn timber and methods of its determination
GOST 33081-2014: Wooden glued bearing structures. Strength classes of structures elements and methods for its determination
GOST 33120-2014: Glued timber structures. Methods for determining strength of glue joints
GOST 6564-84: Lumbers and blanks
GOST 8486-86: Coniferous sawn timber. Specifications
GOST 9330-2016: Principal joints of details of wood and wooden materials. Types and dimensions
GOST R 56705-2015: Wooden structures. Terms and definitions
The Document is Referenced By:
GOST 19414-2023: Glued wooden structures. General requirements for toothed glue joints
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