【摘要】 文章以巨型框架的一种结构方案为算例,建立了巨型框架减振结构及抗振结构的分析模型,并基于Davenport脉动风速谱模拟了脉动风的速度时程,由此研究了巨型框架减振结构脉动风振的位移、基底剪力及加速度时程反应,结果表明巨型框架减振结构能够显著降低结构的风振反应,是一种较有前途的结构形式。更多还原

【Abstract】 Through an engineering example of the structure scheme of mega frame,an analytical model of vibration-isolating and anti-vibration structure of mega frame is established,and the velocity time history of pulsating wind is simulated based on Davenport theory of pulsating wind spectrum.On this basis,the pulsating wind vibration time history response of displacement,base shear and acceleration of the vibration-isolating structure of mega frame are studied.The result indicates that the pulsating wind vibration response can be evidently reduced by the vibration-isolating structure of mega frame,which may be a new type of promising structural form.更多还原