Recently, advanced control theories have been investigated for applications to control of seismically excited structures. The H and sliding mode control methods were found to be promising for civil engineering structures, based on numerical simulation results. This paper presents the results of shaking table experiments that were conducted to confirm the validity of the H and continuous sliding mode control methods. A three-story, 1/4-scaled building model was used, equipped with an active tendon control system. Various earthquake records were used as input excitations. Both the full-state feedback controllers and the static output feedback controllers were employed. The experimental data correspond satisfactorily with numerical simulation results. Extensive test results illustrate that the H and continuous sliding mode control methods, particularly the static output feedback controllers using only the measured information from a limited number of sensors installed at strategic locations without an observer, have practical applications as active control systems on seismically excited structures.
Proceedings First World Conference on Structural Control, pp. 69-75