Journal of Earthquake EngineeringVol. 10, No. 04, pp. 509-526 (2006) No AccessACTIVE/PASSIVE SEISMIC CONTROL OF STRUCTURESSANG-JUN HAN, PANOS TSOPELAS and A. BAZSANG-JUN HANDepartment of Civil Engineering, The Catholic University, Pangborn Hall, Washington, DC 20064, USA Search for more papers by this author , PANOS TSOPELASDepartment of Civil Engineering, The Catholic University, Pangborn Hall, Washington, DC 20064, USA Search for more papers by this author and A. BAZDepartment of Mechanical Engineering, University of Maryland, 2137 Engineering Bldg., College Park, Maryland 20742, USA Search for more papers by this author Cited by:0 PreviousNext AboutSectionsPDF/EPUB ToolsAdd to favoritesDownload CitationsTrack CitationsRecommend to Library ShareShare onFacebookTwitterLinked InRedditEmail AbstractIn civil engineering, structural integrity and safety are of utmost importance as the consequences of failure are devastating. Maintaining the structural integrity becomes particularly important when the structures are subjected to severe earthquakes and strong wind-loading. Various passive and active control means have been considered to avoid catastrophic failure due to seismic or wind excitations. In this paper, a new class of hybrid actuators is presented which consists of a piezoelectric stack actuator combined with a viscoelastic damper to form a passive/active brace system (PAB). The actuator is used for mitigating structural dynamic responses of a three-storey structure subjected to simulated earthquakes loading. The proposed hybrid actuator is selected because it combines the attractive attributes of active and passive systems as well as because it has high stiffness-weight ratio, high frequency bandwidth, and low power consumption.The theoretical and experimental performance characteristics of the three-storey structure with the hybrid PAB actuator are presented. Comparisons are also included when the structure is controlled with conventional viscoelastic dampers or conventional active control braces that operate without any viscoelastic damping. These comparisons emphasize the effectiveness of the hybrid actuator in damping out simulated seismic vibrations.Keywords:Active/passive controlhybrid controlseismic vibrationspiezoelectric actuatorsviscoelastic damping References Y. Arfiadi and M. Hadi, Earthquake Engineering and Structural Dynamics 29(1), 377 (2000). Crossref, Google ScholarA. Baz and S. Poh, Control of seismic excitations using active constrained layer damping, ASME Design Eng. Conf.3 (1995) pp. 691–700. Google ScholarM. Constantinouet al., Fluid viscous dampers in applications of seismic energy dissipation and seismic isolation, Proc. ATC 17-1, Seminar on Seismic Isolation, Passive Energy Dissipation, and Active Control2 (1993) pp. 581–592. Google ScholarG. Housneret al., J. of Engineering Mechanics 123, 897 (1997). Crossref, Google ScholarD. Hrovat, P. Barak and M. Rabins, J. of Eng. Mechanics 109(3), 691 (1983). Crossref, Google Scholar Li, C. and Reinhorn, A. [1995] "Experimental and analytical investigation of seismic retrofit of structures with supplemental damping — part 2: friction devices," NCEER Rep. 95-0009, State University of New York at Buffalo, Buffalo, NY . Google ScholarL.-Y. Lu and L.-L. Chung, Earthquake Engineering and Structural Dynamics 30, 237 (2001). Crossref, Google ScholarN. Makriset al., J. of Engineering Mechanics 122, 1003 (1996). Crossref, Google ScholarN. Makris and S.-P. Chang, Earthquake Engineering and Structural Dynamics 29, 85 (2000). Crossref, Google ScholarN. McClamroch and H. Gavin, Electrorheological dampers and semi-active structural control, Proc. of IEEE Conf. on Decision and Control (1995) pp. 3528–3533. Google ScholarI. Nagashima and Y. Shinozaki, Earthquake Engineering and Structural Dynamics 26, 815 (1997). Crossref, Google ScholarJ.-H. Park, J. Kim and K.-W. Min, Earthquake Engineering and Structural Dynamics 33, 465 (2004). Crossref, Google ScholarJ. C. Ramallo, E. A. Johnson and B. F. Spencer Jr., J. Engrg. Mech. 128(10), 1088 (2002). Crossref, Google ScholarT. T. Soong and B. F. Spencer Jr., Engineering Structures 24, 243 (2002). Crossref, Google ScholarB. F. Spenceret al., J. of Engineering Mechanics 123(2), 230 (1997). Crossref, Google ScholarB. F. Spencer Jr. and S. Nagarajaiah, J. Struct. Eng. 129(7), 845 (2003). Crossref, Google Scholar R. Villaverde , Seismic control of structures with damped resonant appendages , Proc. of First World Conference on Structural Control ( 1994 ) . Google Scholar AnnouncementWorld Scientific has ceased to distribute JEE with effect from 2007. Articles from its back issues can be purchased through our Pay-Per-View service. FiguresReferencesRelatedDetails Recommended Vol. 10, No. 04 Metrics History Received 25 January 2005 Revised 3 June 2005 Accepted 10 January 2006 KeywordsActive/passive controlhybrid controlseismic vibrationspiezoelectric actuatorsviscoelastic dampingPDF download