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Critical Dock Crane Recovery after Slew Bearing Flange Welding Failure

ALATAS Middle East completed a critical dock crane recovery after a slew bearing flange welding failure.

The job scope included the following:

• Condition evaluation and damage assessment of the cracked area,
• Engineering and design of safety brackets to secure the crane revolving structure for separation with the land connected part.
• Supervision of securing of crane in its position.
• Engineering, design and structural calculation of the best possible anchor points for lift off and center of gravity.
• Preparation of lifting plan.
• Supervision of rigging with a 2500t floating crane.
• Supervision of removal of safety brackets with two teams assisted by mobile work access units
• Supervision of lifting activity.
• Supervision of positioning of the revolving structure on the quay side.
• Preparation of a full de-commissioning, repair, fabrication and commissioning documentation.
• Supervision of installation and commissioning.
• Load and overload test.
• Hand Over.

 
Cracked Slew Bearing Flange Welding
Crane taken out of Service
Installation of Safety Brackets started
Installation of Safty Brackets
       
installation of Safety Brackets ongoing
Safety Brackets in Place
Mobilisation of Floating Crane
Soft Slings for Lifting
       
Hook Up of Floating Crane Completed
Floating Crane in Position
Removal of Safety Brackets
Crane Separated from its original Position
       
Crane Separated from its original Position
Crane Lifted from its Position
Crane lift
Crane Going to be placed onto Quay Side
 
Crane arrived at Resting Position
Crane arrived at Resting Position
Crane Resting at Quay Side
   
       
   

 

 
 
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