<title>Recent development in structural control including soil-structure interaction effect</title>

Abstract

Soil-structure interaction (SSI) has gamed significant recognition of importance in the control of seismically excited structures in the past ten years. In this paper, recent developments of the SSI effect on the performance of passive, semiactive and active control strategy are summarized in general. It is followed by a short presentation on the seismic effectiveness of tuned mass dampers, variable stiffness devices and active control systems in reducing the maximum response of structures with the intent of comparing the SSI effect on various devices and control systems. Numerical studies on a 3-and a 12-story frame structure resting on a viscoelastic half space indicated that SSI tends to defeat the effectiveness of control systems. This defeat is primarily because the damping of a soil-structure system increases and the structure vibrates more like a rigid body as the soil material softens. Since nearly all devices made of smart materials either passively or actively respond to the structural deformation, their performance is likely to degrade for flexible-base structures.

Application of Tuned Mass Dampers for Structural Vibration Control: A State-of-the-art Review

“…The optimized parameters of tuned mass dampers for tall buildings have been analyzed by considering SSI effects Xu and Kwok [143]. Chen et al [145] investigated the effects of SSI in the seismic analyses of structures with energy dissipation devices standing on flexible soil. As mentioned above, the effects of SSI significantly influence the dynamic specifications such as the natural period and damping ratio, which are immediately related to the design of an inter system.…”

Investigation Responses of the Diagrid Structural System of High-rise Buildings Equipped with Tuned Mass Damper Using New Dynamic Method

“…Analytical tools for reliable prediction of structural response are essential tools in performance-based design processes which will continue to improve the behaviour of structures and include new devices and materials [28] . The area of soil-structure interaction, perhaps the least understood aspect in the field of earthquake engineering, is poised to witness the emergence of new numerical techniques to model nonlinear soils and structures in a manner that was not possible until now, due to the significant computational effort required [29][30][31][32][33][34][35][36][37] . The development of new structural systems and devices will continue for base isolation, passive, active and semiactive controlling systems.…”