State of the Art of Structural Control

TLDR

Recent research has focused on structural control devices to mitigate wind and seismic responses, with active systems deployed in Japan but limited by cost and reliability, prompting interest in semiactive systems for their mechanical simplicity, low power needs, and controllable force capacity. The paper reviews recent rapid developments in semiactive structural control. It examines how these developments are implemented in full‑scale structures.

Abstract

In recent years, considerable attention has been paid to research and development of structural control devices, with particular emphasis on alleviation of wind and seismic response of buildings and bridges. In both areas, serious efforts have been undertaken in the last two decades to develop the structural control concept into a workable technology. Full-scale implementation of active control systems have been accomplished in several structures, mainly in Japan; however, cost effectiveness and reliability considerations have limited their wide spread acceptance. Because of their mechanical simplicity, low power requirements, and large, controllable force capacity, semiactive systems provide an attractive alternative to active and hybrid control systems for structural vibration reduction. In this paper we review the recent and rapid developments in semiactive structural control and its implementation in full-scale structures.