Negative stiffness driven TMD with vertical load support for smart seismic control of high-rise buildings and energy response properties

IF 4.6 2区工程技术 Q1 ENGINEERING, GEOLOGICAL

Soil Dynamics and Earthquake Engineering Pub Date : 2025-08-19 DOI:10.1016/j.soildyn.2025.109742

Hiroki Akehashi, Kazuki Watai, Naoto Kamoshita

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引用次数: 0

Abstract

Negative stiffness driven-TMD (NSD-TMD) that uses negative stiffness and inertial mass in the auxiliary connection is proposed. Its optimal design parameters and the energy response characteristics of buildings equipped with NSD-TMD are also clarified. NSD-TMD links the main and auxiliary connections to different stories. The main connection consists of a spring and a dashpot, similar to conventional TMDs. The auxiliary connection comprises positive and negative spring elements and inertial mass. The negative stiffness and inertial mass in the auxiliary connection amplify the control force or the dissipated energy by the main connection. Furthermore, either story linked by both connections can support the vertical load of NSD-TMD. When lower stories support the vertical load of NSD-TMD, structural members in upper stories do not need additional reinforcement. To investigate the energy response characteristics of buildings equipped with NSD-TMD, the energy transfer function is introduced, and the equivalent damping ratio is formulated. Finally, the time-history response analyses for MDOF building models subjected to various types of ground motions are performed to demonstrate the effectiveness of NSD-TMD.

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负刚度驱动竖向荷载支撑TMD高层建筑智能地震控制及能量响应特性研究

提出了利用负刚度和惯性质量作为辅助连接的负刚度驱动tmd （NSD-TMD）。阐明了NSD-TMD的最优设计参数和建筑的能量响应特性。NSD-TMD将主要和辅助连接连接到不同的故事。与传统的tmd类似，主连接由弹簧和减震器组成。辅助连接包括正、负弹簧元件和惯性质量。辅助连接中的负刚度和负惯性质量放大了主连接的控制力或耗散能量。此外，由两个连接连接的任何一个层都可以支持NSD-TMD的垂直荷载。当下层支撑NSD-TMD竖向荷载时，上层结构构件无需额外加筋。为了研究NSD-TMD建筑的能量响应特性，引入了能量传递函数，并建立了等效阻尼比。最后，对多自由度建筑模型在不同类型地震动作用下的时程响应进行了分析，验证了NSD-TMD的有效性。

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来源期刊

Soil Dynamics and Earthquake Engineering 工程技术-地球科学综合

CiteScore

7.50

自引率

15.00%

发文量

446

审稿时长

8 months

期刊介绍： The journal aims to encourage and enhance the role of mechanics and other disciplines as they relate to earthquake engineering by providing opportunities for the publication of the work of applied mathematicians, engineers and other applied scientists involved in solving problems closely related to the field of earthquake engineering and geotechnical earthquake engineering. Emphasis is placed on new concepts and techniques, but case histories will also be published if they enhance the presentation and understanding of new technical concepts.