高层建筑外观形体比例对风载作用结构横向振动的影响The Influence of Body Shape Proportions on the Horizontal Vibration of a High-rise Building under Wind Loads
陈青长;刘金圣;
摘要(Abstract)：
以承受定常和周期风载的高层建筑为背景,研究外观形体比例对于结构物横向振动响应的影响规律.将矩形截面的高层结构物抽象为一Euler悬臂梁结构,通过分析其本构关系建立动力学模型,采用Galerkin原理及振动理论得到结构的振动响应,研究表明外观形体比例对高层结构在顺风向载荷作用下的振动有重要影响:在定常载荷作用下,结构物的顺风向位移随高层结构物的迎风面高宽比增大而增大;而在周期激励载荷作用下,结构物发生顺风向振动,结构的最大顺风向位移对结构物的外观形体比例敏感,却并不单调变化.
关键词(KeyWords)： 高层建筑;外观形体比例;风载;横向振动;矩形建筑
基金项目(Foundation): 上海市软科学研究计划项目(14692106500)
作者(Authors): 陈青长;刘金圣;
DOI: 10.13568/j.cnki.651094.2018.03.017
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