95
Category 2: Civil Structures
2
Owner
Vlaamse Overheid, Wegen en Verkeer, Hasselt
Architect
Vlaamse Overheid, Expertise beton en staal
(primilary design)
General Contractor
Anmeco N.V.
Engineering Office
Ingenieursbureau Stendess N.V.
Construction Period 09/2013 - 12/2013
The bridge over the N75 was built to eliminate dangerous crossings for
cyclists and pedestrians. The bridge consists of a straight 60 m long
access bridge (with four supports) and a curved cable-stayed bridge with
a length of 90 m supported by 12 cables with two pylons with a height of
20 m. The bridge deck consists of a main tube (Ø 864) and an orthotropic
bridge deck plate with transversal and longitudinal reinforcements.
The bridge was transported to the site in pieces (27 m), positioned on
temporary supports and welded on site. After the erection of the pylon and
bridge deck, the cables were tensioned according a precise tensioning
programme. After the tensioning, the main tube was filled with concrete as
a counterweight (to avoid traction in the supports).
The possibility of input and the use of graphical section was a big
advantage because of the curved and continuously changing cross-
sections of the pylons. There was the limitation of the reactions on the
bridge end supports and the simulation of the realistic behaviour of
the cables. Because the linear calculations resulted in compression in
the tension bars, a non-linear calculation was needed. A second order
calculation was used to check the pylons based on a stability calculation.
For the erection engineering, the different construction stages had to be
examined. The dynamic behaviour of the bridge also had to be checked.
Cyclists Bridge over the N75 Stationstraat / Steenweg op Maasmechelen - As, Belgium
SE
Ingenieursbureau Stendess N.V.
Contact
Jurn De Vleeschauwer
Address Grote Baan 18
9920 Lovendegem, Belgium
Website
Stendess calculates and draws complex steel constructions
in a high
quality and efficient manner while seeking economically responsible and
substantial solutions for specific technical stability issues. Thanks to the
integral service, where the design of the metal superstructure and the
concrete substructure are calculated and drawn by experts in the same
office, the building owner and principal contractor retain 100% control over
the complete structure. References demonstrate the
multidisciplinary
knowledge
and ability of our engineers and designers in the market of
bridges, industry, utility and other projects located
worldwide
.
