Parameter optimization of vibration control system for adjacent building structures based on negative stiffness inerter damper

Abstract

Building structures are subjected to strong earthquakes, which result in lateral collisions between them. Such collisions often cause severe structural damage and exacerbate the seismic hazard risk of building structures during earthquake events. This paper discusses the application of vibration control devices based on negative stiffness inerter damper in single-story adjacent building structures. The dynamic equations of the vibration control system containing different types of negative stiffness inerter damper under seismic excitation are established as a unified model. The H2 norm theory and Monte Carlo pattern search method are used to optimize the design parameters to improve the vibration control performance of the system, and the dynamic characteristics of the system are investigated. The results demonstrate that attaching negative stiffness inerter damper to adjacent building structures can effectively improve the overall seismic capacity reserve of the building and reduce the risk of collision of adjacent building structures; improve the robustness and stability of the system, and better reduce the displacement response of the building structure under seismic excitation. In addition, the potential of NSID-based vibration control devices to convert seismic energy into usable electricity has been investigated.

Analysis of the Seismic Impact of the Atrium Steel Suspension Bridge System on a Museum

“…Additionally, SRC structures possess good mechanical properties and better seismic resistance (Bajaj & Yadav, [2]; Xie et al, [31]; Ro et al, [21]). When analyzing building structures within venues, it is often necessary to consider the dynamic characteristics such as vibration period, mass, stiffness, and damping coefficient (Harouni et al, [10]; Uemura et al, [28]; Kang et al, [12]; Song et al, [24]). The natural frequency of large-span venue buildings is generally low, and seismic action can cause severe structural responses.…”