Open Access

ARTICLE

Parameters Optimization and Performance Evaluation of the Tuned Inerter Damper for the Seismic Protection of Adjacent Building Structures

by Xiaofang Kang^1,*, Jian Wu¹, Xinqi Wang¹, Shancheng Lei²

1 Key Laboratory of Intelligent Underground Detection Technology, School of Civil Engineering, Anhui Jianzhu University, Hefei, 230601, China
2 Chengnan College, Changsha University of Science and Technology, Changsha, 410015, China

* Corresponding Author: Xiaofang Kang. Email:

(This article belongs to the Special Issue: Vibration Control and Utilization)

Computer Modeling in Engineering & Sciences 2024, 138(1), 551-593. https://doi.org/10.32604/cmes.2023.029044

Received 28 January 2023; Accepted 22 May 2023; Issue published 22 September 2023

Abstract

In order to improve the seismic performance of adjacent buildings, two types of tuned inerter damper (TID) damping systems for adjacent buildings are proposed, which are composed of springs, inerter devices and dampers in serial or in parallel. The dynamic equations of TID adjacent building damping systems were derived, and the H₂ norm criterion was used to optimize and adjust them, so that the system had the optimum damping performance under white noise random excitation. Taking TID frequency ratio and damping ratio as optimization parameters, the optimum analytical solutions of the displacement frequency response of the undamped structure under white noise excitation were obtained. The results showed that compared with the classic TMD, TID could obtain a better damping effect in the adjacent buildings. Comparing the TIDs composed of serial or parallel, it was found that the parallel TIDs had more significant advantages in controlling the peak displacement frequency response, while the H₂ norm of the displacement frequency response of the damping system under the coupling of serial TID was smaller. Taking the adjacent building composed of two ten-story frame structures as an example, the displacement and energy collection time history analysis of the adjacent building coupled with the optimum design parameter TIDs were carried out. It was found that TID had a better damping effect in the full-time range compared with the classic TMD. This paper also studied the potential power of TID in adjacent buildings, which can be converted into available power resources during earthquakes.

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