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[1]孟庆涛,董志骞,黄丽华,等.钢框架-分段摇摆桁架-MTMD减震体系抗震性能研究[J].建筑科学与工程学报,2025,42(03):58-67.[doi:10.19815/j.jace.2023.03099]
　MENG Qingtao,DONG Zhiqian,HUANG Lihua,et al.Study on seismic performance of steel frame-segmented rocking truss-MTMD seismic mitigation system[J].Journal of Architecture and Civil Engineering,2025,42(03):58-67.[doi:10.19815/j.jace.2023.03099]
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钢框架-分段摇摆桁架-MTMD减震体系抗震性能研究(PDF)
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
42卷
期数:
2025年03期
页码:
58-67
栏目:
建筑结构
出版日期:
2025-05-30

文章信息/Info

Title:
Study on seismic performance of steel frame-segmented rocking truss-MTMD seismic mitigation system
文章编号:
1673-2049(2025)03-0058-10
作者:
孟庆涛,董志骞,黄丽华,张 晗,李 钢
(大连理工大学 海岸和近海工程国家重点实验室,辽宁 大连 116024)
Author(s):
MENG Qingtao, DONG Zhiqian, HUANG Lihua, ZHANG Han, LI Gang
(State Key Laboratory of Costal and Offshore Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China)
关键词:
分段摇摆桁架;  高阶振型;  多重调谐质量阻尼器;  抗震性能
Keywords:
segmented rocking truss;  high-order vibration mode;  multiple tuned mass damper;  seismic performance
分类号:
TU352.1
DOI:
10.19815/j.jace.2023.03099
文献标志码:
A
摘要:
针对传统摇摆墙结构体系在高层建筑结构中适用性有限的问题,提出了一种钢框架-分段摇摆桁架-多重调谐质量阻尼器(MTMD)减震体系。该体系将传统摇摆结构沿竖向划分为多段摇摆体系,并根据体系的振型特性布置多重调谐质量阻尼器。分别以单段、双段、三段的钢框架-摇摆桁架减震体系为研究对象,通过非线性时程分析研究了摇摆结构分段数量、分段位置、框架-摇摆桁架侧向刚度比、MTMD质量与布置位置等参数对结构抗震性能的影响,最后对某35层钢框架-分段摇摆桁架结构进行算例分析。结果表明:分段摇摆桁架体系能够有效减小摇摆桁架中部的最大弯矩; 结构在布置MTMD后,最大层间位移角减小7%～29%; 该体系既具有传统摇摆结构体系的特性,避免了薄弱层的出现,也可以实现多阶振型的损伤控制,并通过MTMD耗能有效减小结构的地震响应。
Abstract:
Aiming at the limited applicability of traditional rocking wall structure system in high-rise building structure, a steel frame-segmented rocking truss-multiple tuned mass damper(MTMD)damping system was proposed. The system divided the traditional rocking structure into a multi segment rocking system vertically, and arranged MTMD according to the vibration mode characteristics of the system. The single-segment, double-segment and three-segment steel frame-rocking truss seismic reduction systems were taken as the research objects. Through the nonlinear time history analysis, the influences of the number of segments, the position of segments, the lateral stiffness ratio of frame-rocking truss, the mass and layout position of MTMD on the seismic performance of the structure were studied. Finally, a 35-story steel frame-segment rocking truss structure was analyzed. The results show that the segmented rocking truss system can effectively reduce the maximum bending moment in the middle of the rocking truss. After the structure is arranged with MTMD, the maximum inter-story displacement angle is reduced by 7%-29%. The system not only has the characteristics of the traditional rocking structure system, avoids the emergence of weak layers, but also can realize the damage control of multi-order vibration modes, and effectively reduces the seismic response of the structure through MTMD energy consumption.

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相似文献/References:

备注/Memo

备注/Memo:
收稿日期:2023-03-26
基金项目:国家自然科学基金项目(52225804); 中央高校基本科研业务费专项资金项目(DUT22RC3038); 辽宁省博士科研启动基金计划项目(2019-BS-052)
通信作者:董志骞(1989-),男,工学博士,副教授,E-mail:zqdong@dlut.edu.cn。
Author resume: DONG Zhiqian(1989-), male, PhD, associate professor, E-mail: zqdong@dlut.edu.cn.
更新日期/Last Update: 2025-06-01