Volume 136, Number 1, October 2021
|Number of page(s)||6|
|Published online||12 January 2022|
Evidence of extreme events in wind-induced normal stress of the columns of low- and medium-rise building structures
1 Department of Physics, Centre for Nonlinear Science and Engineering, School of Electrical and Electronics Engineering, SASTRA Deemed University - Thanjavur 613 401, India
2 Turbulence and Flow Control Laboratory, School of Mechanical Engineering, SASTRA Deemed University Thanjavur Tamilnadu 613 401, India
Received: 30 June 2021
Accepted: 19 October 2021
We designed models for low- and medium-rise building structures with square and rectangular plans and tested the wind-induced normal stress of the building columns. We demonstrate the structures' normal stress response due to the wind load is non-Gaussian and shows evidence of extreme events, which are four to seven times larger than the mean standard deviation. We have estimated the probability distribution function to corroborate the long-tail nature of the extreme events, and randomness of the events is confirmed by plotting inter-event intervals and return maps. Further, the number of extreme events is calculated, which validates the exponentially decaying fit as a function of the number of standard deviations.
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