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In this case study,SCIA Engineerreveals how its structural engineering software made modelling of theMbius towers structure very practical.

The Mbius towers distinguish themselves from their angular neighbour in theBrussels North District by their completely elliptical shape.

The 19 (Tower I)and 23 (Tower II) floors above the ground, measuring 73m and 98m respectively,offer nearly 62,000 m of office space.

In addition, a 2-level basement provides300 parking spaces.

The towers are built on the foundation slab of a former construction, whichresulted in a limited construction height. Therefore, a flat slab was chosen as asolution, with locally integrated steel beams transferring smaller column loadsto the parking grid.

The office floors are made with hollow-core slabs and in-situ casts flat slabs. For the frame, prefabricated beams and columns in high strength concrete are used. A 3-level high steel structure on the top provides space for technical rooms.

In this project, SCIA Engineer was used for the analysis of global stability, for the calculation of deformation of the tower taking into account the cracked lintel shear beams, for the check of wind comfort and generally as a design tool providing a reference model for load takedown.

In aBIM workflow, the derivedforces were used for the detailed design.

The Revit link made modelling of the steel structure very practical. For the modelling of the challenging floor shape, varying local surface loads and floor elements with subregions were used.

Client:VK Engineering

Construction End Date:Mar-2021

Software:SCIA Engineer

Country:Belgium

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Structural engineering software assists the design of Mbius towers - Planning, BIM & Construction Today