节点文献

模块化建筑阵列多调谐质量阻尼系统的实现与减震研究

Implementation and vibration control of an array multi-tuned mass damping system for modular buildings

  • 推荐 CAJ下载
  • PDF下载
  • 不支持迅雷等下载工具,请取消加速工具后下载。

【作者】 何晴光张释佺朱前坤洪祺凯

【Author】 HE Qingguang;ZHANG Shiquan;ZHU Qiankun;HONG Qikai;Key Laboratory of Disaster Prevention and Mitigation in Civil Engineering of Gansu Province, Lanzhou University of Technology;Western Engineering Research Center of Disaster Mitigation in Civil Engineering of Ministry of Education;

【通讯作者】 张释佺;

【机构】 兰州理工大学甘肃省土木工程防灾减灾重点实验室西部土木工程防灾减灾教育部工程研究中心

【摘要】 基于建筑模块化和悬挂楼板减震的原理提出了悬挂楼板模块体系(modularized suspended floors system, MSFS)。利用楼板作为质量块,组成分布阵列式多调谐质量阻尼器(distributed array multiple tuned mass dampers, d-array-MTMDs)系统。通过输入32条远场和近场地震动记录进行时程分析,对平均调谐频率比η、调谐频带宽度系数β、调谐阻尼比ζ_T、TMD数量n以及主结构层数N,共5个参数展开研究。结果表明:d-array-MTMDs的减震效果优于普通MTMDs系统;ζ_T对系统减震性能影响较小,当η为0.7~1.0、β为2.0时,系统具有更好的减震效果;当n大于某阈值时,系统的减震效果趋于稳定,阈值与η线性正相关,与ζ_T非线性负相关。随着模块建筑层数的增加,系统也能维持较好的减震效果。

【Abstract】 A modularized suspended floors system(MSFS) was proposed based on the principle of building modularity and vibration controlling by using suspended floors. A distributed array multiple tuned mass dampers(d-array-MTMDs) system was constructed using floor stabs as the masses of TMDs. Thirty-two ground motion records were impat for time-history analysis and the optimal values of the five parameters were given, including the average tuning frequency ratio η, the tuning bandwidth coefficient β, the tuning damping ratio ζ_T, the number of TMDs n, and the number of layers N of the main structure. The results show that the damping effect of the d-array-MTMDs system is better than that of the ordinary MTMDs system. ζ_T has little influence on the vibration control performance of the system. When η is 0.7-1.0 and β is 2.0, the system has the best vibration control effect. When n is greater than a certain threshold, the vibration control effect and stability of the system are improved significantly. The threshold is positively correlated with η and negatively correlated with ζ_T. With the increase of the storey number of a module building, the system can still maintain an improved vibration control effect.

【基金】 国家自然科学基金(52168041)
  • 【文献出处】 振动与冲击 ,Journal of Vibration and Shock , 编辑部邮箱 ,2024年06期
  • 【分类号】TU352.1
  • 【下载频次】74
节点文献中: 

本文链接的文献网络图示:

本文的引文网络