Proyectos de referencia
Tres siglos de construcción de puentes sobre el estuario de Forth
El Queensferry Crossing, en las proximidades de Edimburgo (Escocia), es un puente atirantado con tres torres de más de 200 m de altura cada una. Está considerado uno de los proyectos de infraestructura más grandes de Europa y gracias a los ingenieros de Leonhardt, Andrä und Partner (LAP) y Allplan Engineering, se proyectó con una planifica - ción de armados en 3D de última tecnología.
Debido a sus características, el estuario de Forth, al sur de Escocia, requiere de unas infraestructuras con necesidades especiales. Aquí, muy próximos entre sí, tres puentes cruzan un brazo de mar que penetra hasta 80 kilómetros en tierra. En este punto, el puente de Forth, un puente de acero construido en 1890, acoge desde entonces el tráfico ferroviario. Desde el verano de 2017, el puente colgante de Forth Road, construido en 1964, está destinado exclusivamente al tránsito de autobuses, bicicletas y peatones. A partir de ahora, el nuevo puente de Queensferry Crossing se usará para el tráfico rodado, complementando así a los dos anteriores. Este puente cuenta con dos carriles, más otro adicional para emergencias en cada sentido. Mientras que el puente de Forth fue diseñado y ejecutado mediante dibujos a mano sobre papel, los planos de armadura y ejecución del Queensferry Crossing se han realizado de manera tridimensional en Allplan Engineering.
A2 Freeway, Stansstad-Beckenried, Switzerland
For all those involved in the project, repairs to the 12-kilometer section of the A2 freeway between Stansstad and Beckenried is a particular challenge. Between 2013 and 2017, the section of road, which has been in use for 40 years, will be redeveloped in three construction stages at a cost of around 278 million francs.
The repair work must be carried out within a short space of time, among traffic, and in very tight spaces on site. To meet these demands, the repair work on the Stansstad section to freeway exit Stans Süd, including the preferred measures, has been divided into six phases. It is only necessary to close freeway entrances and exits for a short time during resurfacing work.
The project placed high demands on the accuracy of the installation of the new road surface. With Allplan Highway, it was possible to meet these demands very efficiently.
Aare bridge, Olten (SO) Switzerland
Olten has a new landmark: the Aare Bridge, which was given over to traffic in April 2013 as part of the "Olten Region Relief" (Entlastung Region Olten, ERO) project. Thanks to the 3D visualization, the planning association commissioned to manage the project were able to show that the main intersections of the static system could meet all requirements relating to the installation of reinforcements and pre-tensioning measures, despite their minimal dimensions.
The main challenge for reinforcement and pre-tensioning was at the highest point of the structure: The longitudinal beams (which act as a link to the cut-and-cover tunnel), the angled support (which stands on the abutment), and the concrete sail (which braces the bridge's longest support) come together here on both outer sides.
The reinforcement and pre-tensioning plans for this level of complexity in the structure could only be tested in the 3D model...
Three bridge project in Nijmegen, Netherlands
The Dutch in Nijmegen reveal just how sustainable and pioneering flood protection can be with an impressive project. Just across the border from Germany in the Lower Rhine, Europe's largest flood protection project is under construction. It is called "Ruimte voor de Waal" – literally "more room for the Waal" – and is intended to create more space for the biggest river in the Netherlands, the Waal.
For the engineers in charge at Witteveen + Bos, bridge building on this scale is an enormous challenge, especially as the timetable has been tight from the start. Planning such a major project without errors in such an incredibly short time is only possible – and the Dutch engineers were in full agreement – with hard work and the latest equipment.
With Building Information Modeling (BIM) as an efficient planning method, and with Allplan Engineering as the right tool it is extremely beneficial because all the necessary information can be derived directly and coherently.
All Wrapped Up
Elephant house Zurich Zoo, Switzerland
The new Kaeng Krachan Elephant Park at Zurich Zoo is a fine example of the international change taking place in zoo philosophy: More space for elephants, more proximity for visitors. The new home for a family of eight elephants extends over an area of more than 11,000 m². This is approximately six times the size of the old facility and provides the animals with more space, more family life and more room for movement.
The project was a daring experiment because a roof structure like this, with spans of over 85 meters, had never been built before.
For many years, Walt + Galmarini has consistently relied on the BIM solution Allplan Engineering for realizing challenging designs with a high degree of quality. Once the digital building model has been populated with the design data, the engineers can derive all the relevant sections, views and perspectives.