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Category 2: Civil Structures
2
Reconstruction of the Bridge OA401 - Grevenmacher, Luxembourg / Wellen, Germany
SE
Schroeder & Associés
Contact
Patrick Beicht
Address 8, rue des Girondins
1626 Luxembourg, Luxembourg
Website
The engineering office Schroeder & Associés, founded in 1961, operates
in four fundamental departments: building engineering, structural
engineering, road system, networks and urban and landscape design.
Relying on its 50 years of experience and 250 employees, as well as on
specialized foreign partners, the office offers its services, experience and
know-how to its customers.
The challenge lies in proposing solutions that fulfil customer demands and
in increasing their satisfaction by completing the projects in an effective
way.
Owner
Administration des Ponts et Chaussées,
Division des Ouvrages d’Art Luxembourg
Architect
INCA S à r.l. Niederanven
General Contractor
CDCL SA Luxembourg /
Ateliers Roger Poncin Ocquier
Engineering Office
Schroeder & Associes SA Luxembourg
Construction Period 06/2012 - 10/2013
The bridge is designed for road traffic and pedestrian use and crosses the
river Moselle between Luxembourg and Germany. The bridge is executed
in a straight line in plan view and has a slight longitudinal inclination over
the whole length of 212.50 m and a variable width. The construction
consists of main box girders, arch and suspension elements, transversal
welded T-girders and orthotropic deck. The centre part of the bridge was
assembled in the port of Mertert and transported to the final site by ship
over the river Moselle, where the centre bay and the 2 approach bays
were welded together.
Several models in SCIA Engineer are established to analyze the structure.
The main part of the bridge, consisting of the longitudinal box girders,
the transversal beams and the arch with the suspension elements, is
introduced as beam elements in a 3D model. The junction node of arch
and girders is analyzed by finite elements. One challenge in the modelling
was to take into account the different construction stages. This was made
easy by SCIA Engineer as it allows all the construction stages to be seen
in one model. The deformations for the different construction stages
and the final stage from the SCIA Engineer models corresponded to the
measured deformations on site.
