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原文传递 Finite-Element Modeling of Bunkie Structures Subjected to Boundary Layer and Thunderstorm Flows

题名：	Finite-Element Modeling of Bunkie Structures Subjected to Boundary Layer and Thunderstorm Flows
正文语种：	eng
作者：	Tarek Ghazal;Haitham Aboshosha
作者单位：	Ryerson Univ.;Ryerson Univ.
摘要：	Abstract In Canada, southern Ontario is strongly affected by high-intensity thunderstorms, leading to catastrophic structural and economic losses. People in rural areas are more prone to those weather-related fatalities due to the lack of suitable storm shelters. This paper will build on previous research where three commonly used Bunkie shapes in Ontario, Canada, were tested experimentally at the Toronto Metropolitan University wind tunnel under boundary layer and downburst flows. This led to an aerodynamic database consisting of force and moment coefficients for the three shapes. In this paper, it is planned to couple the available aerodynamic database with the climate analysis in southern Ontario to quantify the actual forces and moments on low-rise Bunkie structures seen during normal wind and downburst flows. Subsequently, typical construction cross sections for low-rise wooden framed buildings were assumed, and the behavior of the Bunkie structures was assessed under both wind fields to evaluate their potential usage as storm shelters. This was achieved using finite-element modeling, and potential retrofitting solutions are suggested to stiffen the structures to resist high-intensity wind events.
出版年：	2023
期刊名称：	Journal of structural engineering
卷：	149
期：	5
页码：	04023038.1-04023038.13