箱形转换层位置对高层结构抗震性能影响  

Influence of the Elevation of Box-shaped Transfer Storey on Seismic Behaviour of High-rise Structures

作　　者：谷倩[1] 肖楠 蔡全智 彭少民[1] 

机构地区：[1]武汉理工大学土木工程与建筑学院,武汉430070 [2]新疆建筑设计研究院,乌鲁木齐830002 [3]中南建筑设计院,武汉430071

出　　处：《武汉理工大学学报》2010年第2期38-42,共5页Journal of Wuhan University of Technology

基　　金：武汉市建委科技计划项目(03120-33)

摘　　要：针对一幢高103.85 m的带箱形转换层的高层短肢剪力墙结构工程实例,运用有限单元法对该高层建筑底部框支结构、箱形转换层结构及上部短肢剪力墙结构进行空间整体建模。通过对3个不同转换层设置高度的参数分析模型,进行空间结构模态分析和水平地震作用反应谱分析,研究箱形转换层设置高度对该类结构体系动力特性和抗震性能的影响。结果表明,箱形转换层位置过低或过高都将对整体结构的抗震性能产生不利影响,箱形转换层设置的最佳位置,应综合考虑结构模态分析结果和地震作用效应分析结果进行合理设计。According to a high-rise short-leg shear wall structure with box-shaped transfer storey, in a total height of 108.35 m, the lower frame supporting structure, the box-shaped transfer storey and the top short-leg shear wall system are integrally modelled bY three-dimensional finite element method. By means of the mode analysis and the seismic response spectrum analysis of three 3D FE parametric models with different elevations of the transfer storey, the influence of the elevation of box-shaped transfer storey on dynamic characteristic and seismic behaviour of this kind of structural system is investigated. It shows that whether the box-shaped transfer storey at high elevation or at low elevation of whole building, the disadvantage to seismic resis- tance of whole structure will emerge; the appropriate elevation of transfer storey should be decided by combining the results of mode analysis and seismic effect analysis.

关 键 词：箱形转换层 高层建筑 短肢剪力墙 抗震性能 动力特性 

分 类 号：TU973.1[建筑科学—结构工程]