Performance of Fixed-Parameter Control Algorithms on High-Rise Steel Structures Equipped with Smart Tuned Mass Dampers

The present study investigates the performance of fixed parameter control (direct output and full state feedback) algorithms on wind excited high-rise structures equipped with semi-active tuned mass dampers (STMD) of variable damping. It has been demonstrated that when the same auxiliary semiactive device is used, the algorithms that increase significantly the performance of the controlled structure do so at the expense of damper strokes. On the contrary, when the maximum damper strokes are capped to a certain limit, there may be a case where what was found to be the more conservative algorithms may allow for similar performance gains while at the same time minimising the required number/size of the devices and force demands.