Year: 2025
Type: conference-paper
Abstract: . A damped outrigger system is presented to improve the seismic performance of the conventional outrigger system by incorporating a tuned viscous mass damper (TVMD) between the core tube and the perimeter columns. An optimal framework of the design parameters of the TVMD is developed, which includes mode superposition technique and fixed-point method. A simplified cantilever beam with distributed parameters represents the deformation characteristic of the core tube in the outrigger system. Mode superposition decouples the continuous system using a general single-degree-of-freedom system. Then, the fixed-point method is proposed to determine the optimal design parameters of the TVMD by minimizing the H_2- norm of the frequency response function of the displacement response of the outrigger system. A numerical study demonstrates that the designed TVMD effectively mitigates the roof displacement.
Source: Materials research proceedings
Author: Dawei Li
Institution: Lanzhou University of Technology
Language: English
Subfield: Civil and Structural Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Awards: G7333002137, G7649408673
OpenAlex ID: W4408405598