基于机器学习的贝叶斯优化调整的惰性阻尼器,用于在高层基础隔离结构中增强地震响应控制
Shuai Huang1, Kesong Zhu2,3
1Infrastructure Department, Nanyang City Branch, Post Group Co., Ltd., Nanyang, 473000, China.
Scientific reports
|March 13, 2026
概括
本研究引入了贝叶斯优化框架,用于调整的内置阻尼器 (TIDs),以提高高层建筑的抗震能力. 优化的TID有效地减少了各种地面运动下的结构移位和加速.
科学领域:
- 结构工程 结构工程
- 减轻地震危险的减缓
- 优化技术 优化技术
背景情况:
- 高层基础隔离的建筑面临着来自各种地面运动的重大地震风险.
- 传统的地震缓冲系统经常与长期特征和脉冲式激发作斗争.
- 调整的位阻尼器 (TID) 提供了增强地震性能的潜力,但需要有效的设计方法.
研究的目的:
- 开发和介绍一个基于贝叶斯优化的设计框架,用于调整的内阻尼器 (TID).
- 优化TID参数 (惰性,频率比,阻尼比) 以尽量减少地震响应指标.
- 在各种地震刺激下,评估优化TID在高层基层隔离建筑中的有效性.
主要方法:
- 利用贝叶斯优化方法与高斯过程替代模型相结合.
- 整合了长期动态特征和惯性导向参数化.
- 对30层,40层和50层基础隔离结构进行了彻底的数值研究,这些结构受到远断层,近断层,非脉冲和近断层脉冲地面运动的影响.
主要成果:
- 优化的TIDs将平均平方位移降低了20-25% (远断/近断非脉冲) 和10-18% (近断脉冲).
- 最顶层的峰值绝对加速度降低了高达22.8%,超过了传统的减压系统.
- 该框架显示了中高层建筑 (30-40层) 的最佳性能.
结论:
- 贝叶斯优化的TID框架为增强抗震能力提供了一种可靠且有效的计算设计方法.
- 该方法有效地解决了基础隔离结构中的长期和脉冲式地震激发.
- 限制包括理想化的惰性建模和SDOF表示,可能低估了非常高的建筑物的影响.
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