Ceiling of the new sports and events hall is being built: special crane lifts lattice girders weighing several tons onto the roof
This week, lattice girders weighing several tons, bottom chords and quadrilateral girders are being placed in the center of the bunker. The steel girders form the ceiling of Hamburg’s future new hall for school sports and cultural events.
As the loads of the lattice girders and four-terminal girders are too high for the existing four tower cranes, an additional 500-ton truck-mounted crane was erected for the assembly of the slab parts. The individual steel truss girders have a length of up to 24 meters and are delivered, laid and aligned as a whole. Thus, after the past weeks of winter in Hamburg, the raising of the bunker St. Pauli is making another important, storey-spanning construction progress. However, not only due to snow and frost, but also the wind poses challenges to the work not infrequently. “We have to use cranes to transport all construction materials and parts to the bunker roof,” says project spokesman Frank Schulze. “In higher wind strengths, however, crane work is only possible to a limited extent or not at all.” Around 13,000 tons of concrete have been used since construction work began.
The next milestone will be the installation of the mountain path, which – starting at the north side of the bunker – will lead once around the outside of the building up to the roof park. Already this path will be planted and become part of a special experience of the future green bunker.
Despite the Corona crisis, work continues at full speed to complete the addition as closely as possible to the schedule during the second half of 2021. The exact timing will of course depend on the progress of further work and how the Corona situation develops over the coming weeks and months. After all, no one can currently forecast what consequences the restrictions will still have for the construction industry as a whole. As in almost all sectors of the economy, there is still a threat of disruptions and staff shortages for building materials producers, tradesmen and logistics companies. In addition, supply chains will be disrupted, which may delay the transport of important construction materials, in some cases throughout the EU.
Text/Photos: Frank Schulze Kommunikation