Model Validation for the Wind Response of Modular High-Rise Buildings through Full Scale Monitoring
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2022Access:
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Hollie Moore, Brian Broderick, Breiffni Fitzgerald, Vincent Barrett, Shane Linehan, Model Validation for the Wind Response of Modular High-Rise Buildings through Full Scale Monitoring, Civil Engineering Research in Ireland, 2022Download Item:
Abstract:
For many tall building forms, habitability requirements associated with excessive acceleration response become a
governing design criterion as building heights increase. This study considers the wind-induced acceleration response of tall
modular buildings and validates computational model predictions using recorded acceleration responses obtained from full-scale
monitoring of high-rise buildings. The modelled mechanical behaviour of these steel framed module and RC core buildings and
their predicted acceleration response, natural frequency and damping ratio are compared to the actual measured responses.
The acceleration response of a full-scale tall modular building experiencing ambient wind excitation is obtained through a
monitoring campaign employing two triaxial accelerometers located at the top of the structure, a data acquisition system and a
data storage system; wind speed and direction are also recorded. The acceleration response is processed using modal identification
techniques to obtain the natural frequency and damping ratio of the completed structure. The acceleration response, natural
frequencies and damping ratios are then compared to the outputs from a previously developed ETABS model of the structure.
The comparison between the model and the full-scale monitoring campaign provides insight into model accuracy and identifies
opportunities for further refinement of the modelling of tall modular buildings to reduce model size, run time and computational
expense, without loss of accuracy in wind-induced response prediction. The validation of the model supports structural
optimisation analyses and the numerical investigations required to include vibration response mitigation measures in future
designs
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Irish Research Council (IRC)
Author's Homepage:
http://people.tcd.ie/fitzgeb7http://people.tcd.ie/bbrodrck
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Author: Fitzgerald, Breiffni; Broderick, Brian
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Civil Engineering Research in IrelandType of material:
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Full text availableKeywords:
Modular Construction, Tall Buildings, Wind-Induced Vibration, Structural Modelling, Natural FrequencySubject (TCD):
Smart & Sustainable Planet , Structural Dynamics , Structural Engineering , wind engineeringMetadata
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