Damped outrigger semi-active control for seismic vibration mitigation

Abstract In earlier days, the only way to resist lateral loads was increase strength of structure obtained by making larger cross sections and massive buildings. Structural control is one solutions important topics in both points view security comfort recent years. To reduce effect seismic energy, structural forms used outrigger. years, supplementary devices are installed into outrigger so that damping increases helps mitigating vibration, this concept called damped study, a replicating St. Francis Shangri-La Place skyscraper excited for El-Centro earthquake, Kobe earthquake numerically modeled with viscous dampers Magneto-Rheological damper compare its effectiveness. The finite element approach analysis using Bernoulli’s Euler beam theory modeling core as element. state-space structure, dampers, controller interface MATLAB Simulink, then results peak value displacement, acceleration, mean values response structure. discussed, which shows significant distinction between uncontrolled controlled responses.