Abstract
This paper describes the role of the cable-bracing-self-balanced inerter system (CBSBIS) for vibration control of frame-core tube structures and focuses on the efficiency improvements of the inerter system brought by the topology optimization corresponding to the cable-bracing schemes. Different cable-bracing schemes are proposed to explore the installation efficiency applied to frame-core tube structures. According to the characteristics of the bending deformation, the simplified discrete model of a frame-core tube structure with the CBSBIS is established, and an optimal design method based on the modal control is proposed from the perspective of the convenience of design. According to the results of parameter analysis and numerical cases, the vertical bracing scheme is more effective in utilizing the overall bending deformation of the frame-core tube structure, particularly through the outriggers, which amplify the displacement driving the CBSBIS. Meanwhile, the damping effect of controlling multiple modes of the structure is demonstrably superior to that of controlling a single mode. Compared with the traditional damped outrigger and tuned mass damper, the CBSBIS provide a better solution for the control of structures which means that the CBSBIS has a significant improvement in the control of the structure's harmful inter-story drift ratio and acceleration response.
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