摘要
采用从刚性模型风洞试验中得到的风荷载时程对两端山墙封闭和半封闭两种状态的煤棚钢网架进行风致响应计算,获得不同风向角下的风致响应系数,给出整体风振系数和分区风振系数。研究表明不同风向角下整体风振系数变化明显,相同风向角下封闭和半封闭两种状态下的风振系数差异较大。对于A类地貌下两端山墙封闭的煤棚:z方向整体风振系数在大风情况下约为1.43,y方向的整体风振系数在大风情况下约为1.90。对于A类地貌下两端山墙半封闭的煤棚:z方向整体风振系数在大风情况下约为1.55,y方向的整体风振系数在大风情况下约为1.82。
Calculating wind-induced response of a dry coal shed under semi-closed and closed conditions is carried out.The wind-induced response and gust loading factor(GLF)are obtained and total GLF and partitioned GLF are given.The results show that the total GLF varies with wind azimuths and the GLF is quite different for semi-closed and closed conditions even under same wind azimuth.For closed coal shed under category A terrain,the total GLF in z direction is about 1.43 and the total GLF in y direction is about 1.90 under strong wind.For semi-closed coal shed under category A terrain,the total GLF in z direction is about 1.55 and the total GLF in y direction is about 1.82 under strong wind.
作者
林少波
方志庆
赵英能
沈国辉
LIN Shaobo;FANG Zhiqing;ZHAO Yingneng;SHEN Guohui(East China Electric Plant Design Institute Co.,Ltd.,Shanghai,200063,China;College of Civil Engineering and Architecture,Zhejiang University,Hangzhou 310032,China)
出处
《武汉大学学报（工学版）》
CAS
CSCD
北大核心
2020年第S01期414-417,共4页
Engineering Journal of Wuhan University
关键词
干煤棚
风振系数
有限元计算
风洞试验
dry coal shed
gust loading factor
finite element calculation
wind tunnel test
