Inerter-Connected Double Tuned Mass Damper for Passive Control of Buildings under Seismic Excitation

In current work the Inerter-Connected Double Tuned Mass Damper (ICDTMD) is employed for structural control of a well-recognized benchmark 10-story linear shear building. The ICDTMD introduced to overcome practical limitations roof-top tuned mass damper inerter (TMDI), in which second terminal connected lower floors To this end, modification double (DTMD) with linking proposed not only exploit promising features but also surmount architectural interference effective TMDI configurations. TMDs free parameters are optimized using particle swarm optimization algorithm (PSO) two different single objective functions, i.e., H∞ norms roof displacement and story drifts were minimized robust tuning. evaluate robustness optimal damper, its performance was compared traditional (STMD) DTMD both frequency time domains (time history analysis four far- near-field records) preselected inertance ratios. indices domain selected as maximum drifts, acceleration shear. Results show that rooftop ICDTMD, unlike TMDI, provides similar level response reduction STMD, while being more reliable due redundancy. addition, exhibits significantly smaller spring stiffness.