GB/T 29895-2013 English PDF

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GB/T 29895-2013: Standard test methods for nondestructive evaluation of wood-based flexural members using transverse vibration
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 29895-2013	169	Add to Cart	3 days	Standard test methods for nondestructive evaluation of wood-based flexural members using transverse vibration	Valid

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Basic data

Standard ID: GB/T 29895-2013 (GB/T29895-2013)
Description (Translated English): Standard test methods for nondestructive evaluation of wood-based flexural members using transverse vibration
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: B69
Classification of International Standard: 79.060
Word Count Estimation: 7,762
Quoted Standard: GB/T 1931; GB/T 17657
Regulation (derived from): National Standards Bulletin No. 22 of 2013
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: wood lateral vibration test method of dynamic flexural modulus methods. This standard applies to: a solid rectangular cross section wood materials.

GB/T 29895-2013: Standard test methods for nondestructive evaluation of wood-based flexural members using transverse vibration

---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.
Standard test methods for nondestructive evaluation of wood-based flexural members using transverse vibration ICS 79.060 B69 National Standards of People's Republic of China Transverse vibration testing method dynamically wood Flexural modulus method Issued on. 2013-11-12 2014-04-11 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 of timber structures Wood Technical Committee (SAC/TC41/SC4) centralized. This standard was drafted. South China Agricultural University, Chinese Academy of Forestry Wood Industry Research Institute, Suzhou Royal overall residential Systems Unit Limited copies of the National Furniture Product Quality Supervision and Inspection Center (Guangdong). The main drafters of this standard. dual Hu Chuan, Zhou Haibin, Yin Armenia, this fee Hua, Ren Haiqing, Ni Jun, Hong Yun, Wang Ting, Zhaorong Jun, Huang Yong, Zhu Jin, Wen Wei satisfied that the new Yuan, Zhou Jianhui. Transverse vibration testing method dynamically wood Flexural modulus method

1 Scope

This standard specifies the method of transverse vibration test wood dynamic bending modulus of elasticity approach. This standard applies to solid wood material having a rectangular cross section.

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 1931 Method for determination of moisture content of wood GB/T 17657 panels and veneer plywood physical and chemical performance test method

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Lateral vibration transversevibration Caused by a simply supported beam at the mid-span of the vertical displacement or other minor initial excitation source, excitation and pick-up are consistent with the direction of the longitudinal direction of the specimen Vertical vibration. 3.2 Fundamental vibration fundamentalmodeofvibration By the midpoint of the span simply supported beam perpendicular to the axial displacement of small vertical lateral vibration, as shown in FIG. Figure 1 a schematic view of the fundamental mode transverse vibration

4 Test System

4.1 Overview Test system consisting essentially of a support device, the exciting means and the pick-up system. ......

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