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Extreme-Value Combination Rules for Tower–Line Systems Under Non-Gaussian Wind-Induced Vibration Response

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Publicado en:Buildings vol. 15, no. 11 (2025), p. 1871
Autor principal: Zhao, Shuang
Otros Autores: Zhang Xianhong, Zhang Chentao, Yan Zhitao, Zhang, Xueqin, Zhang, Bin, Dai Xianxing
Publicado:
MDPI AG
Materias:
Load
Wind engineering
Structural engineering
Response time
Random variables
Structural safety
Wind tunnel testing
Wind effects
Service life
Vibration response
Correlation coefficients
Correlation coefficient
Vibration
Monte Carlo simulation
Wind loads
Infrastructure
Wind
Wind resistance
Value analysis
Structural response
Wind tunnels
Gaussian process
Engineering
Vibration analysis
Methods
Estimation
Acceso en línea:Citation/Abstract
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Resumen:Currently, extreme response analysis of tower–line systems typically assumes each component response follows a stationary Gaussian process. However, actual structural responses often exhibit significant non-Gaussian characteristics, potentially compromising structural safety during service life. Based on the first-passage theory and the complete quadratic combination (CQC) rule, this study investigates the extreme-value combination of non-Gaussian wind-induced responses for tower–line systems. Subsequently, wind tunnel test data are utilized to generate extreme-value samples with specified first four statistical moments through Monte Carlo simulation. An extensive parametric study was conducted to investigate the influence of non-Gaussian response components on combined extreme responses, leading to the development of a modified CQC (MCQC) rule for extreme-value estimation. Quantitative analyses incorporating both correlation coefficients and standard deviations demonstrated that among the classical combination rules, the proposed MCQC rule provides superior accuracy in estimating the total wind-induced response of tower–line systems. The validity of the MCQC rule was subsequently verified through wind tunnel test data, with the results showing excellent agreement between predicted and experimental values. The research results provide some reference for strengthening the wind resistance toughness of tower–line systems under wind load.
ISSN:2075-5309
DOI:10.3390/buildings15111871
Fuente:Engineering Database