四管自立式钢烟囱风荷载体型系数和风振系数研究  

STUDY ON WIND LOAD FORM COEFFICIENT AND WIND-INDUCED VIBRATION COEFFICIENT OF SELF-SUPPORTING FOUR-PIPE STEEL CHIMNEY

作　　者：张江霖 范振中[2] 夏海春 

机构地区：[1]中国电力工程顾问集团科技开发有限公司,北京100120 [2]中南电力设计院,武汉430071 [3]北京洛斯达电力工程有限公司,北京100120

出　　处：《钢结构》2013年第2期20-24,共5页Steel Construction

基　　金：中国电机工程学会电力青年科技创新项目(2008年度)

摘　　要：通过物理模型试验和数值模拟,对一种全新的火力发电厂自立式钢烟囱———四管自立式钢烟囱的风荷载体型系数和风振系数进行分析与研究。重点对4种不同角度风向作用、不同钢筒间距和不同钢筒直径的四管自立式钢烟囱的风荷载体型系数和风振系数变化规律,进行有针对性的研究,并给出相应的研究结论和计算取值建议,可为类似结构的抗风设计提供参考。It was focused on the analysis and research of wind load form coefficient and wind-induced vibration coefficient of a newly developed self-supporting four-pipe steel chimney for a thermal power plant, which were done through the physical and numerical model test. Based on 4 kinds of different angle of the direction of wind, the different spacing of the steel cylinder and the different diameter of the steel cylinder for the self-supporting four-pipe steel chimney, it was studied the change law of wind load form coefficient and wind-induced vibration coefficient of the self-supporting four-pipe steel chimney,and the corresponding study result and the suggestion on the calculation value were given, which provided a reference for wind resistance design of similar structures.

关 键 词：四管自立式钢烟囱 风荷载体型系数 风振系数 研究 

分 类 号：TU391[建筑科学—结构工程] TU312.1