GB/T 33080-2016 in English
VALIDSafety assessment code for tower cranes
- Issued on:2016-10-13
- Implemented on:2017-05-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$214.00
《GB/T 33080-2016塔式起重机安全评估规程》由TC227（全国起重机械标准化技术委员会）归口，TC227SC1（全国起重机械标准化技术委员会塔式起重机分会）执行，主管部门为中国机械工业联合会。
Introduction
Interpretation of GB/T33080-2016 Tower Crane Safety Assessment Procedure
| Standard Dimensions | GB/T33080-2016 Requirements | Comparative Analysis |
|---|---|---|
| Scope of Safety Assessment | Tower cranes in use for construction and other purposes | Compared with the old standard, the scope of application has been expanded to specify tower cranes for different purposes. |
| Assessment Methods | Document Inspection, Disassembly Inspection, Operation Test and Whole Machine Evaluation | Added specific requirements for disassembly inspection and operation test, with more comprehensive technical details. |
| Safety assessment conclusion | Qualified, downgraded use (mild/severe), unqualified | The parameter range of downgraded use is refined, and the feasibility of actual operation is increased. |
Explanation of professional terms and practical application
Safety assessment: is an activity to inspect and measure the wear, corrosion, cracks, deformation, etc. of equipment structures and mechanical parts to determine whether they can be used normally, downgraded or unusable.
For example, in construction, the safety assessment of tower cranes is directly related to the life safety of operators and the progress of the project. Through regular safety assessments, potential risks can be discovered in time to avoid accidents.
Standard formulation background and technical evolution analysis
GB/T33080-2016 "Tower Crane Safety Assessment Procedure" was formulated on the basis of extensive research and practical experience. With the increasing reliance of the construction industry on lifting machinery, the safety hazards of old tower cranes have gradually emerged. This standard fills the gap in the field of safety assessment of domestic tower cranes in use and provides a technical basis for scientific and standardized safety assessment.
Compared with the old version of the standard, the new version of the procedure has made important improvements in the following aspects:
- Detailed safety assessment conditions have been added to ensure the reliability of the assessment environment and instruments.
- The safety assessment method has been refined, and the specific steps of data inspection, disassembly inspection, and operation test have been clarified.
- New provisions for downgraded use have been added, providing a way for some tower cranes that do not meet the performance standards to continue to be used.
Implementation suggestions and precautions
In order to ensure the effective implementation of GB/T33080-2016, the following suggestions are put forward:
- Strengthen training: Organize relevant personnel to learn the content of the standard and master the methods and requirements of safety assessment.
- Equip with professional instruments: Prepare necessary testing equipment according to the requirements of Appendix A and calibrate them regularly.
- Establish an assessment file: Record the safety assessment results of each tower crane for subsequent tracking and management.
- Strengthen supervision: Relevant government departments should strengthen supervision and inspection of the implementation of the standard to ensure that the safety assessment work is implemented.
Appendix A: Commonly used instruments for tower crane safety assessment
The following are the commonly used testing instruments and their accuracy requirements in tower crane safety assessment:
| Serial number | Instrument name | Accuracy/resolution |
|---|---|---|
| 1 | Ultrasonic non-destructive flaw detector | Horizontal<1%, vertical<5% |
| 2 | Magnetic particle crack detector | Can clearly display the A-type standard test piece groove |
| 3 | Static strain tester | 1% |
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