湖南大学学报（自然科学版）2018，Vol.45Issue(3)：1-7,7.DOI:10.16339/j.cnki.hdxbzkb.2018.03.001
带伸臂桁架减振层高层结构抗风效果分析
Analysis on Wind Resistance Effect of High-rise Building with Damped Outrigger Storeys
摘要
Abstract
The three-dimensional finite element model of a 50-storey steel frame-concrete core wall structure was established.The along-wind induced vibration analysis of the structure with/without damp-ing outrigger storeys under the simulating wind load was performed,and the influence of the number and location of the damping outrigger storey on wind resistance performance of the 50-storey steel frame-con-crete core wall structure was discussed.The analysis results show that the rational number and optimal ar-rangement of the damping outrigger storey can effectively improve the comfort level and wind resistance performance of the tall steel frame-concrete core wall structure.If the maximum inter-storey displacement angle or the peak roof displacement is taken as control obj ectives,damping outrigger storeys should be in-stalled near the central structure so as to obtain better vibration reduction effect.If the peak roof accelera-tion is taken as control obj ectives,damping outrigger storeys should be installed near the top of the struc-ture so as to obtain better vibration reduction effect.Assuming that the total damping coefficients and oth-er parameters of single viscous damper are unchanged,wind resistance performance of high-rise buildings with different damping layers are compared,and the results indicate that the total performance of the buildings with multiple damping layers is better.关键词
高层结构/伸臂桁架/黏滞阻尼器/舒适度/抗风性能Key words
tall buildings/outrigger/viscous damper/comfort/wind resistance performance分类
建筑与水利引用本文复制引用
汪梦甫,梁晓婷..带伸臂桁架减振层高层结构抗风效果分析[J].湖南大学学报（自然科学版）,2018,45(3):1-7,7.基金项目
国家自然科学基金资助项目(51278181),National Natural Science Foundation of China(51278181) （51278181）
