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GB/T 28990-2012: Code for non-destructive evaluation of interior decay and modulus of elasticity of historic building wood members by stress wave methods
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 28990-2012 | English | 299 |
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Code for non-destructive evaluation of interior decay and modulus of elasticity of historic building wood members by stress wave methods
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GB/T 28990-2012
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Basic data | Standard ID | GB/T 28990-2012 (GB/T28990-2012) | | Description (Translated English) | Code for non-destructive evaluation of interior decay and modulus of elasticity of historic building wood members by stress wave methods | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | B69 | | Classification of International Standard | 79.010 | | Word Count Estimation | 13,190 | | Quoted Standard | GB/T 1933-2009; GB/T 20737-2006; GB/T 50452-2008 | | 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 the ancient wooden building wood components internal decay and the elastic modulus of the stress wave NDT test methods and procedures and so on. This standard applies to the ancient wooden building repairs and main | GB/T 28990-2012: Code for non-destructive evaluation of interior decay and modulus of elasticity of historic building wood members by stress wave methods
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Code for non-destructive evaluation of interior decay and modulus of elasticity of historic building wood members by stress wave methods
ICS 79.010
B69
National Standards of People's Republic of China
Internal decay and the elastic modulus of ancient architecture wood components
Stress wave nondestructive testing procedures
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.
This standard was proposed by the State Forestry Administration.
This standard by the National Standardization Technical Committee timber (SCA/TC41) centralized.
This standard was drafted. China Forestry Science Institute of Wood Industry, Northwest A & F University, Xi'an University of Technology, Shandong Province
Linyi Exit Inspection and Quarantine.
The main drafters of this standard. a new paragraph Fang, Zhou Yu, Feng Dejun, Shang Dajun, Zhouguan Wu, Wang Zhengguo.
Internal decay and the elastic modulus of ancient architecture wood components
Stress wave nondestructive testing procedures
1 Scope
This standard specifies the test method for wood components of internal decay and the elastic modulus of the ancient wooden buildings of stress wave nondestructive testing and step
Step and so on.
This standard applies to the use of ancient timber buildings repair maintenance and survey.
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 1933-2009 Wood Density Determination
GB/T 20737-2006 NDT General terms and definitions
GB/T 50452-2008 ancient building anti-vibration technology industry specifications
3 Terms and Definitions
GB/T 20737-2006, GB/T 50452-2008 define the following terms and definitions apply to this document.
3.1
Ancient architecture historicbuilding
Ages passed down to the study of social and political, economic and cultural development of valuable buildings.
[GB/T 50452-2008, the definition 2.1.1]
3.2
Ancient wooden buildings historictimberstructure
Wood-bearing skeleton of the ancient architectural structures.
[GB/T 50452-2008, the definition 2.1.3]
3.3
Wood components woodenstructuremember
For wood assembly wood structure on ancient buildings, such as columns, beams, purlins and the like.
3.4
NDT non-destructiveevaluation
Without prejudice to the practicality and reliability of the method is expected to examine materials or components, which are designed to. detect, locate, measure and assess
Injury; evaluation of the integrity of the nature and composition; measuring geometric characteristics.
[GB/T 20737-2006, the definition 2.20]
3.5
Timber stress wave nondestructive testing non-destructiveevaluationbystresswavemethodofwood
Using stress wave instrument, without destroying the wood itself, the wood stress wave propagation and wood interior, should be measured by
Force wave propagation time, calculate the propagation velocity to assess wood decay, wood calculate the elastic modulus method.
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