During their employment in various companies our colleagues were working as project engineers or consultants/technical supporters/software supporters on this project.
Near the town of Sandomierz in the South of Poland an old steel bridge crossed the Vistula river. To increase the traffic capacity, the new prestressed concrete bridge became the goal of a «Design and Built» – competition. The «form» as well the pier locations with relative large final spans were kept from the old, existing steel bridge. The main spans were created by the cantilever method and the rest of 16 m at the last span by conventional scaffolding. The cross-section high above the pier is 5.60 m (h / l = 1:17) resp. 3.00 m (h / l = 1: 31.50) in the middle of the span.
Span lengths: 84.80 – 95.40 – 95.40 – 95.40 – 84.80; Width of the bridge: 14.10 m
Design: 2008 – 2010, Construction: 2009 – 2010
Bridge Type: Five span pre-stressed concrete bridge with single-cell hollow box girder. Total length of the bridge is 456 m.
Erection method: Free balanced cantilever.
Involvement of our Employees: Modelling, construction stage analysis, optimization of tendon scheme, stability, reinforcement design, pre-camber calculation and erection control.between 4 and 10.5 m. Maximum cantilever during construction reached up to 94 m.
Reference: MEICHTRY & WIDMER, DIPL. ING. ETH/SIA AG