对具有三层隔离系统的超高层建筑结构的地震响应分析
Yuan Zhang1, Zhongfa Guo2, Dewen Liu3
1College of Civil Engineering, Southwest Forestry University, Kunming, 650000, Yunnan, China.
Scientific reports
|November 6, 2023
概括
与单层或双层系统相比,一种新型的三层地震隔离装置为超高的建筑提供了优越的保护. 这种先进的地震隔离有效地减少了罕见地震期间的结构应力和移位.
科学领域:
- 结构工程 结构工程
- 地震工程的工程是地震工程.
- 地震隔离技术的地震隔离技术
背景情况:
- 超高的建筑越来越容易受到地震力量的影响.
- 现有的地震隔离方法,如单层和双层隔离,在减轻极端地震影响方面存在局限性.
- 需要先进的隔离策略来提高高层建筑的弹性.
研究的目的:
- 为超高层建筑物提出和评估一种新的三层地震隔离装置.
- 为了在罕见的地震条件下比较三层隔离与单层和双层隔离的地震性能.
- 分析拟议的三层隔离系统的缓冲机制和地震响应特征.
主要方法:
- 为隔离系统开发动态平衡方程.
- 对遭受罕见地震 (ASCE MCE水平) 的超高框架剪切结构进行比较地震响应分析.
- 评估结构参数,包括应力,层间位移,剪切力,翻转时刻和地板加速等.
主要成果:
- 三层隔离装置在罕见的地震中表现出比单层和双层装置更好的地震隔离性能.
- 三层系统有效地减少了地震隔离支张力/压缩应力,层间位移,剪切力,翻转时刻和地板加速.
- 侧向位移集中在三个隔离层上,导致地震输入能量的大量消耗.
结论:
- 三层的地震隔离装置为增强超高框架剪切结构的抗震能力提供了卓越的解决方案.
- 拟议的装置的有效性随着楼层数量的增加而增加,从而大大减少了关键结构反应.
- 三层隔离是减轻高层建筑地震风险的一个有希望的方法.
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