Abstract
Pedestrian-induced vibration (PIV) is often recognized as the most persistent floor serviceability issue for buildings. This type of vibration can cause discomfort for the occupants and can also have a negative impact on the performance of sensitive equipment residing on the floor. Resolving floor vibration problems in built structures often requires costly remedial measures. The response of a built floor to PIV can be evaluated by monitoring techniques. The purpose of long-term floor monitoring is to have a comprehensive insight into the vibration levels. However, it is relatively rare due to the associated costs and challenges. Short-term monitoring and controlled walking tests may not reflect the actual vibrations of the floor but are easier to perform. This research aims to estimate the percentiles of the long-term floor response distribution based on a sample of short-term measurement by Confidence Interval (CI) analysis. For this purpose, the minimum monitoring duration (MD) required to accurately reflect the long-term distribution and the appropriate percentile to evaluate the floor performance is investigated. In this research, two methods are considered to determine what percentile should be selected to evaluate floor performance. The minimum monitoring duration is obtained based on CI analysis. The results of this research are expected to provide a more realistic assessment of floor vibration performance.
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Acknowledgements
The authors acknowledge the support of the Natural Sciences and Engineering Research Council of Canada (NSERC) [funding reference number RGPIN-2019-03924 and RGPIN-2016-04446].
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Bouzari, N., Van Engelen, N., Cheng, S. (2023). Analysis of Pedestrian-Induced Floor Vibrations Based on Monitoring Durations. In: Gupta, R., et al. Proceedings of the Canadian Society of Civil Engineering Annual Conference 2022. CSCE 2022. Lecture Notes in Civil Engineering, vol 348. Springer, Cham. https://doi.org/10.1007/978-3-031-34159-5_58
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