Case Studies

Dancing on the Sky Bridges at the National Gallery, Singapore

100 pedestrians danced to music by Daft Punk, Beastie Boys and Stardust whilst a research team from Full Scale Dynamics Ltd (FSDL) and the Vibration Engineering Section at University of Exeterevaluated the vibration serviceability of the two sky bridges crossing the atrium at the National Gallery in Singapore

The National Gallery Singapore is a conversion by studioMilou architecture (Paris) of “two of Singapore’s most significant heritage buildings – the former Supreme Court and City Hall – into one major regional institution dedicated to modern and and contemporary visual arts”. The conversion cost S$530 (about £250m) and the building was opened to the public on November 24th 2015. A high profile visitor commented that the sky bridge had some movement. Hence Full Scale Dynamics Ltd (FSDL) and the Vibration Engineering team at University of Exeter were asked to evaluated the vibration serviceability of the two sky bridges crossing the atrium between the two buildings.

The testing involved a range of pedestrian loading scenarios using up to 100 pedestrians, studying the human-structure induced vibrations from moving and standing pedestrians, including in contraflow motion. On the second day, with the building pre-opened to 12,000 members of the public, a group of dancers was engaged to check induced vibration levels. Pedestrians were organised to move in a coordinated rhythmic motion, dancing to a specific beat using music from Daft Punk, Beastie Boys and Stardust. The measurements used a set of small 12 wireless inertia measurement units, which also enabled indirect measurements of ground reaction forces.

For more details about the test at the National Gallery in Singapore, please visit our VES Blog here.

Application to VSimulators

Results and information from this case study are beneficial in expanding knowledge on how to perform health monitoring of floors and pedestrian bridges. VSimulators, as a testing platform, enables the the vibration signals to be fed into the facility, to accurately replicate motion, and consequently to support the understanding as to structural movement and the human factors experience. The replicated environment could be explored by users, contractors, and asset owners to provide a realistic understanding as to how a floor or bridge feels and functions.

Alternatively the data could be used to simulate the vibrations likely to be experienced by neighbouring rooms and occupants, sensitive equipment or to explore a designed space prior to construction.

Please contact us if you wish to discuss a similar idea or problem.

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