Virginia Port Authority has partnered with RLT Engineering (RLT), Engineered Rigging (ER) and Crofton Industries to replace three ship-to-shore (STS) container cranes in Virginia, USA.
Before the lift, RLT Engineering analysed the 544-tonne upper-section of the structure to determine whether the gantry portal legs and main frame could support the lift.
Engineered Rigging supplied and installed strand jacks, four hydraulic pumps, load anchors, wedges, strand and mounting grillage that were used to lower the main boom and trolley beam section.
Assisted by two certified equipment operators and technicians from Engineered Rigging, Crofton handled the cutting and lowering of the cranes onto the quayside ready for dismantling. This process was repeated until the booms from all three cranes were safely lowered and secured.