摘要
带加强层的高层建筑在地震作用下侧移和内力有特有的规律。针对带加强层高层建筑分析其动力特性和地震作用下的侧移规律，并进行减震效果研究和优化设计，提出设计建议。以某高烈度区一座带加强层高层建筑为例的分析结果表明，带加强层的高层建筑在地震荷载作用下侧移有突变，楼板缺失导致整个结构变形规律发生改变，附加粘滞流体阻尼器后层间位移角和底部剪力都有所减小，减震方案优化后减震效果良好。
Abstract
High-rise buildings with strengthened storey have their own characteristics on lateral displacement and mechanic behavior under earthquake. In this paper, dynamic characteristics and lateral displacement disciplines of high-rise buildings with strengthened storey are analyzed, results of seismic energy dissipation are discussed, and then algorithms of optimization and design are presented. Regarding an actual high-rise building with strengthened storey in high intensive seismic region as an example, results of numerical simulation reveal that, its lateral displacement curve has abrupt changes and absence of slabs causes the whole structural displacement disciplines to change. At the same time, storey displacement angles and bottom storey shears of this building with dampers both decline. That is to say, effect of seismic energy dissipation is nicer after optimization.
关键词
加强层 /
侧移 /
粘滞流体阻尼器 /
减震
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Key words
strengthened storey /
lateral displacement /
viscous liquid damper /
seismic energy dissipation
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刘涛;李爱群;张志强;裴友法;张志强.
带加强层高层建筑地震作用分析与减震研究[J]. 振动与冲击, 2012, 31(11): 16-21
Liu Tao;Li Ai-qun Zhang Zhi-qiang.
Seismic analysis and energy dissipation study of high-rise buildings with strengthened storey[J]. Journal of Vibration and Shock, 2012, 31(11): 16-21
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