This part of GB 6067 specifies the basic safety requirements in aspects of design, manufacture, installation, reformation, maintenance, application, inspection, scrapping, etc. of the bridge and gantry cranes (hereinafter referred to as "crane").
This part is applicable to bridge cranes defined in GB/T 20776.
This part may also be used as a reference for other lifting appliances if it does not involve special issues in connection with basic safety.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 1591-2008 High strength low alloy structural steels
GB 2970-2004 Thicker steel plates - Method for ultrasonic inspection
GB/T 3323 Radiographic examination of fusion welded joints in metallic materials
GB/T 3805-2008 Extra-low voltage (ELV) - Limit values
GB/T 3811-2008 Design rules for cranes
GB 3836.1 Explosive atmospheres - Part 1: Equipment - General requirements
GB 3836.15 Electrical apparatus for explosive gas atmospheres - Part 15: Electrical installations in hazardous areas (other than mines)
GB 6067.1-2010 Safety rules for lifting appliances - Part 1: General rules
GB 8918 Steel wire ropes for important purposes
GB 12476.1 Electrical apparatus for use in the presence of combustible dust - Part 1-1: Electrical apparatus protected by enclosures and surface temperature limitation - Specification for apparatus
GB 12476.2 Electrical apparatus for use in the presence of combustible dust - Part 2: Selected and installation
GB 15052 Cranes - Safety signs and hazard pictorials - General principles
GB/T 20303.5 Cranes - Cabins - Part 5: Bridge and gantry cranes
GB/T 20776 Classification for lifting appliances
GB/T 20878 Stainless and heat-resisting steels - Designation and chemical composition
GB/T 27546 Sheaves for cranes
JB/T 6406 Electro-hydraulic drum brakes
JB/T 7020-2006 Electro-hydraulic disc brakes
JB/T 8110.2 Rubber buffer for crane
JB/T 9008 (all parts) Steel wire rope electric hoist
JB/T 10559 Non-destructive testing of lifting appliances - Ultrasonic testing of steel welds
JB/T 10833 The polyurethane buffer for cranes
3 Metal structures
3.1 General requirements
The relevant provisions in Clause 3 of GB 6067.1-2010 shall be met.
3.2 Metal structures
When the lower flange of the bearing structural member is used as the track of the crane trolley and its thickness is reduced to 10% of the designed thickness of the flange, it shall be scrapped if it cannot be repaired.
3.3 Materials
As for the cranes, the steel materials used for the bearing structural members shall comply with those specified in GB/T 3811-2008, 5.3.
3.4 Passage and platform
3.4.1 For cranes operated outdoors, measures shall be taken to prevent the water from accumulating on the passage and platform.
3.4.2 The tread of the passage and platform shall be skidproof.
