Office and Administrative Building FC Campus in Karlsruhe, Germany
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.
3deluxe interior / architecture design systems ds GmbH
künstlin ingenieure GmbH & Co. KG
Model Data "Cube B"
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.
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.
Project LocationFC Campus,
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With RF-/DYNAM Pro Equivalent Loads, it is possible to perform an equivalent load calculation using the multimodal response spectrum method. In the example shown here, this was done for a multi‑mass oscillator.
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1st Apartment High-Rise Building Mode Shape Calculated in RFEM's RF-DYNAM Pro - Natural Vibrations (© bauart Konstruktions GmbH & Co. KG)
The material model Orthotropic Masonry 2D is an elastoplastic model that additionally allows softening of the material, which can be different in the local x- and y-direction of a surface. The material model is suitable for (unreinforced) masonry walls with in-plane loads.
- Is it possible to perform a seismic analysis with the masonry material model?
- How to calculate the static depth d when designing the bending of block foundations (calculation as an equivalent beam)?
- I have defined temperature loads, strain loads, or a precamber. As soon as I modify stiffnesses, the deformations are no longer plausible.
- Can the properties, such as B. the cross -section or the surface thickness as well as the material of a surface of an existing element for a new element?
- When should the punching load be determined with the (un)smoothed distribution of the shear forces at the critical perimeter?
- I would like to perform the punching shear design on a column with connected downstand beams as a wall corner or Perform wall end. However, the module applies an internal column. Is it possible to adjust it?
- I am getting the message that my material does not meet the requirements of the current standard. How can I correct this?
- Is it possible to design bidirectional ribbed plates, unidirectional ribbed plates, or hollow core slabs in RFEM?
- Why are the values of a column base, head or center on the individual columns only displayed partially for the results from the calculation in RF‑CONCRETE Columns?
- What should be considered when using a failure of columns under tension in the RF‑/DYNAM Pro – Equivalent Loads add-on module?
Programs Used for Structural Analysis
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
Dynamic analysis of natural frequencies and mode shapes of member, surface, and solid models
Seismic and static load analysis using the multi-modal response spectrum analysis