GB/T 14125-2008
Mechanical vibration and shock.Measurement and evalution of shock and vibration effects on sensitive equipment in buildings (English Version)
- Standard No.
- GB/T 14125-2008
- Language
- Chinese, Available in English version
- Release Date
- 2008
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Status
- 2017-12
- Latest
- GB/T 14125-2008
- Replace
- GB/T 14125-1993
- Scope
- This standard specifies the method for measuring and reporting vibration and shock data of sensitive equipment (in operation or non-operation state) in buildings, and the measured vibration and shock data are used to establish a database. To facilitate comparison of data (for example, comparing vibration and shock levels measured on equipment from different manufacturers in different countries), a database reporting system was discussed. The proposed reporting system facilitates the establishment of device-specific thresholds and at the same time facilitates the classification of environmental conditions for different thresholds. The types of vibration and shock considered in this standard include vibration and shock transmitted from the floor, bench, wall, roof or isolation system to the equipment as a whole. The vibration shock response of individual mechanical or electronic components inside the equipment is not considered. A classification system of environmental conditions based on the database should serve as a guide for those who design, manufacture, and use equipment sensitive to vibration and shock, as well as construction contractors. Targeted sensitive equipment includes: a) stationary computer systems (including peripherals); b) stationary telecommunications equipment; c) stationary laboratory instruments such as electron microscopes, mass spectrometers, gas chromatographs and generally lasers and X-rays Instruments; d) high-precision mechanical instruments (machine tools), such as microelectronics production equipment; e) high-precision optical instruments, photocopying equipment and electron beams; f) electromechanical systems in train traffic control centers; g) safety devices (fire alarm equipment) and access control devices. The vibrations and shocks considered in this standard may be caused by the following vibration sources: a) External vibration sources (such as traffic, blasting during construction, piling and vibration compaction, etc.), also including sonic explosions and vibration responses to sound excitation; b) Equipment used indoors, such as punch presses, forging hammers, rotating equipment (e.g., air compressors, air conditioner pumps) and heavy equipment transported and operated within buildings; c) Personnel-type activities related to equipment maintenance and operation ; d) natural vibration sources, such as earthquakes, water and wind; e) internal vibration sources, such as vibration caused by the equipment itself. The dominant frequency reflects the response characteristics of building components. Generally speaking, the dominant frequency is less than 100Hz, so the frequency range of concern is 0.5Hz~250Hz (for vibration caused by earthquakes, the frequency range of concern is 0.5Hz~35Hz). Vibration frequency and duration depend primarily on the source of the vibration, the distance between the source and the sensitive equipment, and the response of building components supporting the sensitive equipment. The parameters currently used to evaluate the vibration of buildings are represented by particle velocity, and the value is in the range of 10-4m/s~2×10-2m/s. For transient and continuous vibrations caused by different vibration sources, the vibration values of interest are given in Appendix B.
GB/T 14125-2008 Referenced Document
- GB/T 14124 Mechanical vibration and shock.Vibration of buildings.Guidelines for the measurement of vivrations and evaluation of their effects on buildings*， 2009-04-24 Update
- ISO 2041:1990 Vibration and shock; vocabulary
GB/T 14125-2008 history
- 2008 GB/T 14125-2008 Mechanical vibration and shock.Measurement and evalution of shock and vibration effects on sensitive equipment in buildings
- 1993 GB/T 14125-1993 Vibration and shock sensitive equipment-Methods of measurement and reporting data of vibration and shock effects in buildings
