摘要
采用子空间迭代得到了桥墩施工中常用的钢吊箱结构的各阶频率和振型,并采用谱分析方法分析其在脉动风荷载作用下的动力响应。分析结果表明,脉动风压对结构动力响应的影响较小,建议在钢吊箱设计中采用风振系数来考虑脉动风对结构的影响。
A subspace iteration method is adopted in order to acquire frequencies and modes of steel suspending cofferdam that is usually used in the construction of bridge pier. And also dynamic response of this structure under wind load is obtained using spectrum analysis method. The analytic results show that pulsant wind load has little effect on dynamic response of structure, then suggestions are made that during structure design gust response factor should be adopted to calculate the displacement response of steel suspending cofferdam.
出处
《工业建筑》
CSCD
北大核心
2007年第7期82-84,共3页
Industrial Construction
关键词
钢吊箱
谱分析
脉动风压
位移响应
steel suspending cofferdam spectrum analysis pulsating wind load displacement response
