Bodner Group adds its first WOLFF trolley jib cranes
30-Second Takeaway
The Austrian Bodner Group has taken delivery of its first WOLFF trolley jib cranes: a 25-tonne WOLFF 8060.25 Cross and a 20-tonne WOLFF 8038.20 Clear. Both are working on the replacement of the Sill Bridge on the A13 Brenner motorway south of Innsbruck. Installed on opposite sides of the Sill Gorge, the cranes have 80-metre and 70-metre jibs, respectively. Their foundations are anchored 14 metres into the steep slope and about 20 metres below the bridge abutment. Restricted access, overhead power lines and the nearby Innsbruck Airport safety zone added to the planning and installation demands.
First WOLFF cranes for Bodner
Bodner Group has added the WOLFF 8060.25 Cross and WOLFF 8038.20 Clear to its fleet for work on the Sill Bridge replacement project. They are the group’s first WOLFF trolley jib cranes. The two cranes are positioned on opposite sides of the Sill Gorge, on the A13 Brenner motorway south of Innsbruck. The existing bridge, which dates to the 1960s, is being replaced in stages while motorway traffic continues to flow.
Crane installation required careful planning
The WOLFF 8060.25 Cross has an 80-metre jib, a maximum capacity of 25 tonnes and a hook height of 51.7 metres. The WOLFF 8038.20 Clear has a 70-metre jib, a maximum capacity of 20 tonnes and a hook height of 37 metres. The steep gorge and limited working space made crane assembly a project in itself. The jib of the 8038.20 Clear was installed in two sections, with each section lifted from a different mobile crane position. A 450-tonne All Terrain crane was brought in to erect the larger 8060.25 Cross.
Both tower cranes are fixed to foundation anchors set 14 metres into the slope, approximately 20 metres below the bridge abutment. High-voltage power lines cross the construction area, and the Innsbruck Airport safety zone extends to the project site. The cranes were fitted with aviation obstruction lights, and permits were required for their operation.
Cranes to support demolition and reconstruction
The cranes will handle formwork, concrete, machinery and other site equipment during demolition of the existing bridge and construction of its replacement. The work is expected to take about three years. The new bridge is being built over the Sill Gorge as part of the A13 Brenner motorway, a major route between Austria and Italy. The replacement is planned in phases so traffic can continue using the motorway throughout construction.
About Bodner Group
Founded in 1913 and headquartered in Kufstein, Austria, Bodner Group is one of the country’s largest family-owned construction groups. It employs around 3,750 people across approximately 40 subsidiaries in Austria, Germany and Switzerland. Its activities span building construction, civil engineering, general contracting and property development.
View website: https://www.bodner-bau.at/
About WOLFFKRAN
WOLFFKRAN designs and manufactures tower cranes, including trolley jib and luffing jib models. The company’s cranes are manufactured at its plants in Heilbronn and Luckau, Germany, and its business also includes crane rental, service, maintenance and project planning.
View website: https://www.wolffkran.com/website/en/
Frequently Asked Questions
Which WOLFF cranes has Bodner Group added?
The company has taken delivery of a 25-tonne WOLFF 8060.25 Cross and a 20-tonne WOLFF 8038.20 Clear. They are the first WOLFF trolley jib cranes in its fleet.
What are the jib lengths and hook heights?
The 8060.25 Cross has an 80-metre jib and 51.7-metre hook height. The 8038.20 Clear has a 70-metre jib and 37-metre hook height.
What is making the bridge project challenging?
The cranes are positioned on steep slopes in a narrow gorge, with limited space for assembly. The site also has overhead high-voltage power lines and lies within the Innsbruck Airport safety zone.
