Office and Administrative Building FC Campus in Karlsruhe, Germany

Customer Project

Client FC-Verwaltung GmbH
www.fc-gruppe.de
Architect 3deluxe interior / architecture design systems ds GmbH
www.3deluxe.de/architecture
Structural Engineer künstlin ingenieure GmbH & Co. KG
www.kuenstlin-ingenieure.de

Model Data "Cube B"

The FC Campus ("Cube A" and "Cube B"), located directly on the A5 exit Karlsruhe-Nord, consists of two adjacent structural cubes at a slight offset which leave a lasting impression due to their unique facade design.

The reflective blue windows are the project highlight not only visually but also technologically: The FC Campus is the world's first office building with operable liquid crystal windows where translucency can be adjusted electronically.

Structure

The two cubes, each with a total of six stories (first floor to 5th are located on a common and considerably larger underground parking level ("base"). The base spans the entire open parking space level and includes cantilevered reinforced concrete slabs point-supported on columns.

The floors are designed as wide-span point-supported reinforced concrete slabs.

For the maximum ceiling thickness reduction (due to the high punching loads), Geilinger frames ("Europilze") manufactured by the company Spannverbund are utilized in the ceilings above the internal columns. Additionally, to achieve slender column cross-sections for architectural reason (i.e. column diameter at the first floor: d = 10.75 in), Geilinger composite columns are used.

Other that the reinforced concrete walls in the building core as well as the external walls, the vertical load transfer is largely taken over by the concrete columns.

Due to the poor soil conditions, the foundation of the building is supported on deep bored piles.

Each respective internal core, the interior walls, and the exterior reinforced concrete walls integrated in the facade all contribute to the structure lateral stiffness. The seismic design was performed in the Dlubal software programs RFEM + RF-DYNAM Pro according to the multi-modal response spectrum analysis while considering several mode shapes. RFEM allowed for the seismic consideration with the complex geometry of the supporting reinforced concrete exterior walls. This was especially important with regard to the seismic design and the reduction of the torsional effect of the two cubes.

The modeling was initiated with prepared CAD plans imported as a .dxf file format which could be applied concurrently to the horizontal floor plans as well as the vertical exteriors.

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RFEM Main Program
RFEM 5.xx

Main Program

Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements

Price of First License
3,540.00 USD
RFEM Dynamic Analysis
RF-DYNAM Pro - Natural Vibrations  5.xx

Add-on Module

Dynamic analysis of natural frequencies and mode shapes of member, surface, and solid models

Price of First License
1,030.00 USD
RFEM Dynamic Analysis
RF-DYNAM Pro - Equivalent Loads 5.xx

Add-on Module

Seismic and static load analysis using the multi-modal response spectrum analysis

Price of First License
760.00 USD