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Examination of Typhoon-Wind Profiles Reaching 1,000-m Height over the Southeast China Sea Based on Reanalysis Data Set and Mesoscale Simulation
Publisher: ASCE
Abstract: This paper examines the mean wind profiles of tropical cyclones (TCs) toward 1,000-m height with a low-level jet (LLJ) feature over the Southeast China Sea based on the newly released fifth-generation atmospheric reanalysis ...
Galloping Suppression of Iced Transmission Lines by Viscoelastic-Damping Interphase Spacers
Publisher: ASCE
Abstract: Galloping of iced conductors is a kind of self-excited aeroelastic vibration at low frequency and large amplitude causing various damage to transmission tower-line systems. This paper proposes viscoelastic-damping interphase ...
Analysis of Nonstationary Typhoon Winds Based on Optimal Time-Varying Mean Wind Speed
Publisher: ASCE
Abstract: The time-varying mean (TVM) component has a major influence on the characterization of nonstationary wind events and associated parameters of the fluctuating components. However, it is challenging to determine the optimal ...
Design Tropical Cyclone Wind Speed when Considering Climate Change
Publisher: ASCE
Abstract: This paper investigated the evolution of tropical cyclone (TC) wind threat from the past into the future and discussed its implications for the building code specifications for two vulnerable coastal cities (Hangzhou and ...
Bayesian Approach for Typhoon-Induced Fragility Analysis of Real Overhead Transmission Lines
Publisher: ASCE
Abstract: Failure accidents of transmission lines due to excessive wind-induced displacements pose a serious threat to the operational stability and security of the electric power grid. A Bayesian approach is proposed to assess the ...
Nonstationary Characteristics of Short-Rise-Time Gusts in a High-Altitude Deep-Cut Canyon
Publisher: American Society of Civil Engineers
Abstract: A short-rise-time gust is a typical nonsynoptic wind with abrupt changes in mean speed and turbulent intensity, which differs from normal winds at plain sites. Field measurements were conducted in a high-altitude deep-cut ...
Nonstationary Turbulent Wind Speed Models and Their Effects on Wind-Induced Responses of Tall Buildings
Publisher: American Society of Civil Engineers
Abstract: There exist so many approaches to extract the time-varying mean (TVM) of nonstationary wind speeds under the nonstationary wind speed model, such as the wavelet transform and empirical model decomposition. These approaches ...
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