SENSITIVITY ANALYSIS OF THE EFFECTIVENESS OF TUNED MASS DAMPERS TO REDUCE THE WIND-INDUCED TORSIONAL RESPONSES
Keywords:
TUNED MASS DAMPERS, TORSIONAL RESPONSE, NONLINEAR TMDS, SIMULATION OF WIND FORCES, STRUCTURAL CONTROL.Abstract
USE OF TUNED MASS DAMPERS (TMDS) TO REDUCE THE WIND-INDUCED TORSIONAL RESPONSE OF STRUCTURES HAS BEEN INVESTIGATED IN THE LITERA-TURE BY ASSUMING THAT THE WIND EXCITATIONS CAN BE APPROXIMATED BY HARMONIC FORCES OR WHITE NOISE RANDOM PROCESSES; HOWEVER, SUCH AN ASSUMPTION IS NOT REALISTIC. FURTHER, WIND LOAD EFFECTS ARE CORRELATED. THIS STUDY IS FOCUSED ON THE EFFECTIVENESS OF DIFFERENT LINE-AR/NONLINEAR TMDS CONFIGURATIONS TO REDUCE THE WIND INDUCED RESPONSE. FOR THE ANALYSES, THE STRUCTURE IS MODELED AS A MULTI-DEGREE OF FREEDOM SYSTEM UNDER CORRELATED WIND LOAD EFFECTS. THE RESULTS SHOW THAT THE SELECTION OF OPTIMUM DAMPERS IS AFFECTED BY THE CONSIDERATION OF THE CORRELATED WIND LOAD EFFECTS.Downloads
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2015-08-25
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