Analysis of the effect of viscous damper parameters on the seismic response control performance of high-rise buildings

Viscous dampers, as one type of energy dissipation device, have clear mechanical concepts and excellent vibration damping performance, making them the most widely used energy dissipation and vibration damping devices in current engineering applications. This paper aims to investigate the impact of setting viscous damper parameters on the seismic response control effectiveness of high-rise buildings. Through engineering examples, the Maxwell restoring force model is utilized, and the ETABS finite element analysis software is employed to establish a computational model. Using indicators such as inter-story shear force and inter-story displacement angle, the paper verifies the excellent energy dissipation and vibration damping performance of viscous dampers. The study indicates that under seismic loads, the seismic damping effect of viscous dampers on the horizontal displacement of high-rise building floors is superior to that of structural inter-story shear forces, with corresponding damping rates of 73.68% and 37.04%, respectively. Additionally, the damping coefficient significantly influences the seismic damping performance of viscous dampers, while the parameter values of the velocity index have a negligible impact on their seismic damping performance. Viscous dampers, without increasing structural stiffness, provide additional damping to effectively assist the structure in dissipating seismic input energy, thereby reducing the structure’s dynamic response and achieving excellent seismic damping effects.