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Hyundai Motorstudio Goyang

Steel structure of the shaped sky © Delugan Meissl Associated Architects

Delugan Meissl Associated Architects



Bollinger + Grohmann



Seoul, Korea



Completed 2017

The Hyundai Motorstudio Goyang was designed by Delugan Meissl Associated Architects and developed in collaboration with structural engineers Bollinger + Grohmann. The project encompassed a new flagship building for the Hyundai motor company consisting of exhibition halls, auditoriums, administration and sales. The design responds to characteristic elements defined by the architects: Landscape, Vertical Green and Shaped Sky.

The shaped sky sits upon an expansive concrete landscape and houses the cinema, exhibition spaces, multipurpose hall and offices. The ground floor contains the main sales floor on which the cars are displayed and therefore large open spaces are needed. The shaped sky (roof) is supported by merely four cores and six column clusters, which stablise the structure vertically and horizontally. It measures 160m long and 30-75m wide and 20m high, and connects to the 50m office tower towards the north east.

Roof Structure © Bollinger + Grohmann
Roof Structure with the cluster columns © Bollinger + Grohmann

Main trusses span in between and cantilever out of the core and form the primary load bearing system in the roof. These trusses use the entire height of the roof (up to 9m) to bridge the large spans of up to 40m and 26m cantilevers. Secondary trusses have a maximum span of 3m to allow for cladding of the metal sheets and a regular layout was utilised for economic fabrication. The cross sections of the trusses were optimised in Karamba3D using the cross section optimisation algorithm.

© Bollinger + Grohmann
© Bollinger + Grohmann
Different cross section profiles after the optimisation process; Main trusses; Close up of the roof structure © Bollinger + Grohmann

The column clusters are sets of 5-7 pillars which are small In diameter and very slender. These clusters reflect trees in the vertical green gardens adjacent to the cores. The columns themselves are pinned to not take any bending moments or horizontal forces and are distributed irregularly throughout the building. A multi objective optimisation process was set up with Karamba3D to evaluate the positions of the column clusters according to three criteria: the maximum displacement of the roof structure, the number of clusters and the total mass of the structure. Regions where columns could be potentially placed were defined by the architects and the algorithm set out to evaluate many different configurations according to those three criteria. The architects then chose from the final set of optimised trade off solutions which was implemented into the final design.

Column positions in plan © Bollinger + Grohmann
Pareto front results of the optimisation process © Bollinger + Grohmann

Around 6500 elements with 38 governing load combinations modelled in Karamba3D. A close feedback loop was essential in the workflow between design teams to reach a synergetic, well negotiated design solution. Parametric modelling allowed for analysis and assessment of different design iterations and options during the design phase.

Utilisation and Deformation of the roof structure © Bollinger + Grohmann
© Delugan Meissl Associated Architects
© Delugan Meissl Associated Architects
© Delugan Meissl Associated Architects
© Bollinger + Grohmann