Since autumn 2021, the BERNARD Gruppe has been preparing the preliminary design for the Brenner north access in the Bavarian Rosenheim area (planning section 2), as part of an engineering consortium on behalf of DB Netz AG.

The work is being carried out using the Building Information Modeling (BIM) methodology for the track systems and for all civil engineering structures and earthworks on the new double-track line, which is 14.5 km long in total. Planning section 2 comprises 43 railroad bridges – including 2 major bridges with a length of 1 km and 3 km – and 18 road bridges. In addition, this planning section includes the adjustment of third party utility lines, intersecting roads, and watercourses.

In the design, three-dimensional models of the various structures are created and provided with information in the form of attributes, which are then bundled in a coordination model with the specialized models of the other disciplines. The coordination model is mainly used to coordinate the planning with the client and the other planning participants as well as within the engineering consortium. This is done both in conventional planning meetings and in virtual design reviews.

BIM applications include as-built modeling, comparison of variants, planning coordination, preparation of 2D plans, cost planning, and construction scheduling and construction phase planning for the client.

Christian Heger, BERNARD Gruppe

Photo: ©DB Netz AG