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球面壳体结构风荷载特性试验研究 被引量:3

EXPERIMENTAL STUDY ON WIND LOADS ON SPHERICAL SHELL STRUCTURE
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摘要 球面壳体结构是一种风敏感性大跨度屋面结构形式。该文基于这类刚性模型的风洞试验,通过高频电子压力扫描系统测量出高度不同的四种壳体的风压分布规律。考虑雷诺数效应、高跨比、风场类型三个因素,对比球面壳体结构的气动力特性,包括中央子午线上的平均风压系数分布、脉动风压系数分布以及整个球壳表面的风压特性。该文为相应球面壳体结构抗风设计中风荷载的确定提供参考。 Spherical shell structure is a kind of wind-sensitive large-span structure. Based on a wind tunnel test of rigid models, the pressure distributions on four domes of different heights have been measured through a high frequency electronic scanner system. Considering the effect of Reynolds number, height to diameter ratios, wind terrain types of these three factors, the aerodynamic characteristics of a hemispherical shell are compared, including mean and fluctuating wind pressure coefficients on the center meridian and overall pressure patterns of the dome. An experimental basis for the wind loads design of the corresponding spherical shell structure is provided.
出处 《工程力学》 EI CSCD 北大核心 2013年第B06期15-18,共4页 Engineering Mechanics
基金 国家自然科学基金项目(51108280)
关键词 球形屋面结构 刚性模型 风洞试验 风压系数 雷诺数效应 pherical shell structure rigid model wind tunnel test wind pressure coefficients effect ofReynolds
作者简介 翟晶(1986-),女,宁夏人,硕士生,主要从事结构风工程研究(E-mail:xoyozopp@sina.com). 刘庆宽(1971-),男,河北人,教授,博士,主要从事桥梁与结构的风荷载、风致振动与控制研究(E-mail:lqk@stdu.edu.cn) 马文勇(1981-),男,陕西人,副教授,博士,从事结构抗风研究(E-mail:mawenyong@126.com).
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参考文献10

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