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GB/T 28986-2012: Specification for evaluation of structural composite lumber products
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 28986-2012 | English | 329 |
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Specification for evaluation of structural composite lumber products
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GB/T 28986-2012
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Basic data | Standard ID | GB/T 28986-2012 (GB/T28986-2012) | | Description (Translated English) | Specification for evaluation of structural composite lumber products | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | B69 | | Classification of International Standard | 79.060 | | Word Count Estimation | 14,174 | | Quoted Standard | GB/T 1937; GB/T 1939; GB/T 17657; GB/T 50329 | | Regulation (derived from) | National Standards Bulletin No. 41 of 2012 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the structure of wood composite products with the mechanical properties of the test and the method of determining characteristic values ??. This standard applies to structural mechanical properties of wood composite product evaluat | GB/T 28986-2012: Specification for evaluation of structural composite lumber products---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Specification for evaluation of structural composite lumber products
ICS 79.060
B69
National Standards of People's Republic of China
Evaluation of mechanical properties of structural composites with a wooden products
Issued on. 2012-12-31
2013-06-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
Please note that some of the content of this document may involve patents. Distribution of this document
Institutions do not assume the responsibility to identify these patents.
This standard was proposed by the State Forestry Administration.
This standard by the National Standardization Technical Committee of timber structures Wood Technical Committee (SAC/TC41/SC4) centralized.
This standard was drafted. Chinese Academy of Forestry Wood Industry Research Institute, Harbin Institute of Technology, International Bamboo and Rattan Network Center, Suzhou
Royal overall residential Systems, Inc., Diamond Wood China Limited, Guizhou Ming Fir Villa Manufacturing Co., Ltd., Nanjing industrial
Science, Technology Co., Ltd. Suzhou Xiangshan appropriate configuration.
The main drafters of this standard. Zhou Haibin, Zhu Enchun, this fee Hua, Ren Haiqing, Xuwei Tao, Zhong Yong, Ni Jun, Zhuqi Min, Wang Xin, Liu Weiqing.
Evaluation of mechanical properties of structural composites with a wooden products
1 Scope
This standard specifies the mechanical properties and structural characteristics of wood composite products determined by the value of the method.
This standard applies to the mechanical properties of structural wood composite product evaluation.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 1937 grain of wood shear strength test method
GB/T 1939 Standard Test Method for Compressive wood grain
GB/T 17657 panels and veneer plywood physical and chemical performance test method
GB/T 50329 standard test methods for wood structures
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
LVL laminatedveneerlumber; LVL
A thickness of not more than 6.4mm veneer glued along the length of the member Fang Xiangshun laminae product group blanks made of structural wood composites.
3.2
Veneer LVL paralelstrandlumber; PSL
The veneer strip along the length of the member group Fang Xiangshun grain laminate glued blanks made of structural wood composites. Flitches minimum cross-sectional dimension less
To 6.4mm, the length is not less than 150 times the minimum cross-sectional dimension.
3.3
Shavings LVL laminatedstrandlumber; LSL
By the slenderness relatively large flat thin wood shavings along the longitudinal direction of the laminated member group blank glue from structural wood composites. Shavings thickness is not small
At 2.54mm, a width of not less than the thickness, length not less than 380mm.
3.4
Directional shavings LVL orientedstrandlumber; OSL
The slenderness ratio of thin shavings flat member along the longitudinal direction of the blank glued laminated group from the structural wood composites. Shavings thickness not less than
2.54mm, a width not smaller than the thickness, length not less than 190mm.
3.5
Structural wood composite structuralcompositelumber; SCL
Use veneer, veneer strips or wood shavings, etc., are arranged along the longitudinal direction of the group member preform, applying structural adhesive laminate glued together. Structures
Including wood composite laminated veneer lumber, veneer strips laminated timber and laminated wood and other wood shavings oriented.
Structural wood composite has three main directions perpendicular to each other (see Figure 1). L --- a direction parallel to the longitudinal direction of the component; X party
--- Height or width direction parallel to the member section; Y --- direction parallel to the thickness direction of the member section. Cut refers to the cutting along the grain
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