摘要
本文针对存在结构偏心的高耸或高层结构,并结合正在设计中的总高388米、体型为不对称螺旋形的南海明珠电视塔,用取多阶振型并考虑平移扭转耦合振动的计算方法进行了实例计算,并将其计算值与一般计算方法所得值进行比较,最后分析其结果,从而为结构设计提供依据。
In this paper, the wind-induced vibration response of the 388 meters high Nanhaimingzhu TV-Tower which has a nonsymmetric spiral shape,a high-rising structure with eccentricity, is studied. Both the translatory vigration to and fro in the wind direction and the torsional vibration with multiple modes of vibration and their coupling have been considered. Then, computational method is suggested and is compared with the traditional method. Finally results of computation are analysed in order to offer a basis of design.
出处
《上海力学》
CSCD
1998年第2期93-98,共6页
Chinese Quarterly Mechanics
关键词
钢结构
电视塔
非对称
风振
耦连振动
Steel TV-Tower structure, nonsymmetric, wind-induced vibrations, translatory vibration, torsional vibration and their coupling.
