Construction—EMEA—Belgium—Bridges
New Pedestrian Bridge in Liège:
DYWIDAG Bar Tendons keep 430t Steel Element in Balance
The Belgian city of Liège now has a new, centrally located pedestrian and bicycle bridge that connects the district of Guillemins
and the city’s new train station with Park Boverie. The elegant steel suspension bridge with its diagonal hangers is 294m long
and crosses the Meuse River with a main span of 163m and a height of approximately 8m. The bridge deck has a wooden cover
and is 7m wide.
The two prefabricated main elements of the
steel bridge were positioned in only a few days
using three floating cranes. For this purpose,
the largest element was positioned first and
then anchored to the previously prepared
foundation blocks using DYWIDAG Bar Post-
Tensioning Systems with posterior bond. any intermediate support, the element was
actively stressed against the foundation block
using a total of 10, St 835/1,035, 75mm Ø,
4.61m long DYWIDAG-Bar Post-Tensioning
Tendons. Afterwards, the DYWIDAG Bar Post-
Tensioning System was grouted to achieve
corrosion protection.
The largest, approximately 140m long, 430t
main element cantilevered over the river during
construction before the gap was closed
from the park side by the approximately 60m
long, 100t smaller element. To permit a free
cantilevering of the main element without In all of the other, smaller foundation
blocks, St 950/1,050, 18mm - 47mm Ø
DYWIDAG Bar Post-Tensioning Systems
were successfully installed and stressed.
In total, the following DYWIDAG Bar Tendons
with a total tonnage of 4.6t were used:
70
■ ■ 12 75 WR, St 835/1,035N/mm²,
4.61m long DYWIDAG Bar Tendons,
■ ■ 16 47 WR, St 950/1,050N/mm²,
1.475 - 3.26m long DYWIDAG Bar Tendons,
■ ■ 7 40 WR, St 950/1,050N/mm²,
1.32 - 1.58m long DYWIDAG Bar Tendons,
■ ■ 16 32 WR, St 950/1,050N/mm²,
1.005 - 1.46m long DYWIDAG Bar Tendons,
■ ■ 2 26 WR, St 950/1,050N/mm²,
0.95m long DYWIDAG Bar Tendons,
■ ■ 4 18 WR, St 950/1,050N/mm²,
0.95m long DYWIDAG Bar Tendons,
■ ■ 4 20mm Ø, S650/800N/mm² INOX Bar
Tendons