GB/T 31052.5-2015 in English
VALIDLifting appliances―Code of inspection and maintenance―Part 5:Bridge and gantry cranes
- Issued on:2015-12-10
- Implemented on:2016-07-01
- File Format:PDF
- Delivery:Via email within 5 business days
$301.00
《GB/T 31052.5-2015起重机械 检查与维护规程 第5部分：桥式和门式起重机》由TC227（全国起重机械标准化技术委员会）归口，主管部门为中国机械工业联合会。
GB/T31052的本部分规定了桥式和门式起重机在使用过程中应进行的检查与维护方面的基本要求。
本部分适用于 GB/T31052.1―2014附录 A 所规定的桥式和门式起重机(以下简称“起重机”)。
Introduction
Interpretation of the core content of the standard
| Inspection type | Periodic requirements | Core items | Disposal methods |
|---|---|---|---|
| Daily inspection | Before each shift | Deformation of metal structures, brake effectiveness, wire rope status | Immediate rectification/deactivation |
| Regular inspection | Week/month/quarter/year | Mechanism operation test, structural component welds, safety devices | Planned maintenance |
| Special inspection | After the emergency | Overload impact, disaster damage, and transformation verification | Professional evaluation |
Key technical requirements
Bridge craneMetal structure inspection should focus on:
- Vertical deflection of main beam ≤L/1000 (L is the span)
- Ratio of magnetic particle inspection of main welds ≥20%
- Torque attenuation rate of high-strength bolts <15%
Typical maintenance items
| System | Maintenance content | Cycle |
|---|---|---|
| Lifting mechanism | Brake clearance adjustment, wire rope lubrication | Weekly |
| Electrical system | Insulation resistance test (≥1MΩ) | Quarterly |
| Safety device | Limit switch function verification | Daily |
Implementation suggestions
The enterprise should establish a three-level maintenance system:
- Operators are responsible for daily inspections
- Maintenance teams perform periodic maintenance
- Professional institutions conduct annual comprehensive inspections
It is recommended to adopt an information management system to realize the electronicization of inspection records and the automation of early warning.
Loading PDF document...
Error loading PDF. Please make sure the file is valid and try again.
We also recommend
-
GB/T 783-2023 in English
Lifting appliances—Basic parameter series
2023-11-27 -
GB 6067.1-2010 in English
Safety rules for lifting appliances—Part 1:General
2010-09-26 -
GB/T 23725.3-2024 in English
Cranes—Information labels—Part 3:Tower cranes
2024-09-29 -
GB/T 5082-2019 in English
Cranes—Hand signals
2019-12-10 -
GB/T 23721-2026 in English
Cranes—Training of slingers and signallers
2026-01-28 -
GB/T 5905.1-2023 in English
Cranes—Inspection and test code—Part 1:General principle
2023-08-06 -
GB/T 18874.1-2002 in English
Cranes - Information to be provided - Part 1:General
2002-11-19 -
GB/T 28757-2012 in English
Cranes other than mobile，tower and floating cranes and tower cranes - General requirements for stability
2012-11-05 -
GB/T 17496-1998 in English
Repairing technique rules for the harbour portal crane
1998-09-16 -
GB/T 5031-2019 in English
Tower crane
2019-08-30
