复杂外形超高层建筑结构三维风致响应分析

章李刚;楼文娟

振动与冲击 ›› 2013, Vol. 32 ›› Issue (24) : 38-43.

PDF(2240 KB)
PDF(2240 KB)
振动与冲击 ›› 2013, Vol. 32 ›› Issue (24) : 38-43.
论文

复杂外形超高层建筑结构三维风致响应分析

  • 章李刚 ,楼文娟
作者信息 +

Three dimensional wind-induced responses of super-tall buildings with irregular geometric shapes

  • ZHANG Li-gang, LOU Wen-juan
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摘要

以某一具有“靴子状”外形的超高层建筑结构为工程实例,研究此类具有复杂外形的超高层建筑结构在三维时变风荷载作用下的扭转响应,并考察高阶振型的参与对结构不同位置各内力响应的影响大小. 结果表明,该类超高层建筑结构具有显著的扭转向响应分量,从而导致结构各楼层合线加速度响应显著大于质心处的相应值;高阶振型对基底剪力和扭矩的贡献较大,且整体而言,高阶振型的参与将使得建筑顶部和底部内力响应增大而中部标准层附近减小.

Abstract

Utilizing a super-tall building structure with “the boots-like” shape, torsional responses of such super-high buildings with irregular geometric shapes in three-dimension spatiotemporally varying wind loads were researched, and the differences of the various internal force responses with the higher modes participate at different locations of the structure were investigated. The results show that such super-high buildings have significant torsional components and each floor co-linear acceleration response of the structure significantly is greater than the center of mass at the corresponding value. Also, there is a significant contribution of higher modes on the base shear and torque, and in generally, the participation of higher modes will make the internal force responses at the top and bottom of the structure increase while near the central standard layers decrease.


关键词

复杂外形 / 超高层建筑 / 三维风振 / 扭转响应 / 高阶振型

Key words

irregular geometric shape / super-tall building / three-dimension wind-induced vibration / torsional response / higher modes

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导出引用
章李刚;楼文娟. 复杂外形超高层建筑结构三维风致响应分析[J]. 振动与冲击, 2013, 32(24): 38-43
ZHANG Li-gang;LOU Wen-juan. Three dimensional wind-induced responses of super-tall buildings with irregular geometric shapes [J]. Journal of Vibration and Shock, 2013, 32(24): 38-43

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