An old roadway bridge over the east section of the ÖBB (Austrian State Railways) had to be cleared away near Parndorf. The lane was divided into two parts for this purpose. Otherwise, the weight would have made the procedure impossible.
The bridge was prepared by means of core drilling, through which the fastening equipment was then passed. The bridge segment was deposited immediately next to the construction site and then properly disassembled and carried away by a specialist company.
Due to the individual weights of 95 tonnes and a boom radius of 22 meters, Austria’s most powerful 1,000 tonne telescopic crane was the best solution. Any other type of crane technology would have meant longer set-up and dismantling times. Due to the strict time schedule indicated by ÖBB, every minute was a tremendous gain. All the work had to be done between 10 pm and 5 am. The route was closed and all the concerned lines were deenergised only during this period of time.
Because of the 228 tonne counterweight, the large crane weighed 336 tonnes. Therefore, it had to be positioned in the right place. The technical experts of the Prangl team found a placement surface that did not require any additional preparations. This meant also considerable cost savings and a simplification of the project for the customer.