Wolffkran supplied two XXL class Wolff saddle jib tower cranes to help renovate the Klinikum Ingolstadt clinical centre in Ingolstadt, Germany.
The Wolff 9025.20 Cross and the Wolff 8540.20 Cross were used to add a new floor to the hospital building. The cranes were required to add the floor without interrupting the hospital’s day-to-day business, a company spokesperson said.
Ulrich Langenbein, Wolffkran sales manager for Germany, said, “The assembly of the two Wolff cranes using a 500 tonne mobile crane proved to be very challenging and had to be optimally co-ordinated with the hospital’s daily business. The delivery of the mobile crane and Wolff crane components as well as their pre-assembly on the ground and the set-up of the eight by eight metre cross frame all had to be meticulously co-ordinated to not interfere with the hospital’s daily routine.”
To keep the emergency area at the front of the hospital clear from obstruction, the Wolff cranes were erected on the narrow sides of the building. To cover the 160 metre complex, the Wolff 9025.20 was configured with a 90 m jib with tip load capacity of 2.5 tonnes, and the 8540.20 was fitted with a 100 m jib with 3.7 tonne load capacity at jib end. To safely slew above each other, the cranes were placed on towers of 37 and 46 m, respectively.
The two saddle jib cranes were used to lift the steel substructures and composite panels onto the hospital roof. Overall, 450 tonnes of steel, 6,000 square metres of reinforced concrete composite flooring, 2,900 square metres if trapezoidal sheets and 3,000 square metres of concrete ceilings for the new roof were moved.
The job was completed in four months.