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Structural Renderings

The structural design of the ATC helix is far from being trivial. Employing 'Finite Elements Methodology' and modern computer power, it is possible to decompose a complex building into a large number of small elements, which then are individually evaluated for acting and resulting forces. Structural design is always concerned with states of equilibrium, considering that the load on particular static structures is transmitted throughout many different structural elements until it is absorbed at defined points.

Here we show special 3D renderings used by the ATC structural design engineers (Pictures courtesy of Bläß Ingenieure) used to visualise the different statical elements using a special 3D software package (Finite Elemente 3D - InfoGraph GmbH). Different colors are used to identify the various structural elements and separate different building parts, the mesh structure visualises the average forces acting on particular elements.

Please click on the photos for a larger version.

Overview 1
The entire complex is shown from two different angles. You can see the differentially colored intertwined helices, as well as the vertical pillars and the stairway cages.

Overview 2
The entire complex is shown from two different angles. You can see the differentially colored intertwined helices, as well as the vertical pillars and the stairway cages.

Overview witout Helices
The entire complex is shown without the helices, to allow a better visualisation of the below located areas.

Ground Plate
This picture explains the different levels and the structure of the ground plate, as well as the position of the concrete pillars through which the entire construction is anchored in the ground.

Lower Level with Pillars
This graphic depicts the structural design of the helical elements. Each segment of the helix is supported by the pillars and special carriers reaching into the inside of the helix carry the load down to the ground plate.

Lower Level
Here you can appreciate the complexity of the supporting structures which have to carry all the load of the helix.

Lower Level without Ceilings
A different view of the lower level without the ceilings.

Helix Structure under Load
Detail view of the helical structure to demonstrate the calculated behaviour of the building under maximal load. The limits of reversible deformation can be evaluated using this model.
Deformations are exagerated to better indicate any irregularities in the predicted behaviour.

Auditorium Pillars under Load
Detail view of the auditorium pillars under maximal load.
Deformations are exagerated to better indicate any irregularities in the predicted behaviour.

Auditorium Pillars under Load (different viewing angle)
Another view of the auditorium pillars under maximal load from a different angle. Additional structural walls are also included.