By spanning 250 metres, the Brunnholen Bridge is a key feature of the Sandnes bypass south of Stavanger. Since its completion, it has been the four-lane motorway link between Highway 44 Skjaeveland and the E39 Brastein. Incremental launching was the method of choice for construction of this viaduct. Sections up to 34 metres long were constructed in the casting yard and launched incrementally over the bridge piers after the concrete had hardened. Time savings are a big advantage of this method of bridge-building. On this project work proceeded on both bridge structures at the same time.
Challenge:
• safe and economical formwork
solution for incrementally
launched bridge-building
• very tight 300-metre radius of the bridge's curvature
Solutions:
Complete solution from Doka and experienced
bridge-building partners, including cantilever
carriage, casting yard, formwork for piers,
foundations, platforms and outer parapets
Year of completition
2018
Projectduration
n.A.
Country
Norway
City
Sandnes
Requestor
SV Betong AS
Konstruktionsmethode
Cycle time:
2 launching cycles per 14-day period
Overall length:
South: 255 m / North: 244 m
max. span:
55.5 m
Superstructure width:
each 11.5 m
Cross-section height:
3.5 m
Type of structure:
single-cell cross-section with
inclined webs
Number of sections:
9 per supporting structure
Section length for incremental launching:
32.85 m
Casting yard:
34 m