Seismic control performance and experimental study of multiple pounding tuned rolling mass damper

被引：2

作者：

Fan, Peiran ^{[1
]}

Li, Shujin ^{[1
]}

Mao, Ling ^{[1
]}

机构：

[1] Wuhan Univ Technol, Sch Civil Engn & Architecture, Wuhan 430070, Peoples R China

来源：

EARTHQUAKES AND STRUCTURES | 2023年 / 24卷 / 04期

基金：

中国国家自然科学基金;

关键词：

multiple pounding tuned rolling mass damper (MPTRMD); numerical analysis; pounding mechanism; shaking table test; vibration control; DESIGN; BEHAVIOR;

D O I：

10.12989/eas.2023.24.4.247

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Multiple pounding tuned rolling mass damper (MPTRMD) distributed in the cavity of voided slabs is proposed to passively control multi-story frame structures, which disperses the mass of the oscillator to multiple dampers so that the control device can be miniaturized without affecting the vibration control performance. The mechanism and the differential motion equations of the MPTRMD-controlled multi-degree-of-freedom system are derived based on the Lagrange principle. Afterward, this advanced RMD is applied to a simplified 20-floor steel frame to evaluate the seismic control performance in the numerical analysis. A four-storey frame structure equipped with MPTRMD is then taken for a shaking table test to verify its effectiveness of control performance. The pounding mechanism has been detailed studied numerically and experimentally as well. The numerical and experimental results show that the proposed damper is practically promising not only for its prominent control performance but also for its lightweight and space-saving. Additionally, the pounding mechanism influenced by the variable impact parameters exhibits a balance between the two effects of motional limitations and energy dissipation.

引用

页码：247 / 258

页数：12

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