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

作　　者：何晴光[1,2] 张释佺 朱前坤[1,2] 洪祺凯 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,Lanzhou 730050,China;Western Engineering Research Center of Disaster Mitigation in Civil Engineering of Ministry of Education,Lanzhou 730050,China)

机构地区：[1]兰州理工大学甘肃省土木工程防灾减灾重点实验室,兰州730050 [2]西部土木工程防灾减灾教育部工程研究中心,兰州730050

出　　处：《振动与冲击》2024年第6期262-272,共11页Journal of Vibration and Shock

基　　金：国家自然科学基金(52168041)。

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。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.Whenηis 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 withηand 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.

关 键 词：模块化建筑 阵列多调谐质量阻尼器 悬挂结构 振动控制 

分 类 号：TU391[建筑科学—结构工程] TU352.1