Abstract
Abstract A 1/12 scale five-story full aeroelastic building model equipped with viscoelastic dampers is designed and tested in a boundary layer wind tunnel to investigate the effectiveness of viscoelastic dampers in suppressing wind-induced building motion. The degree of reduction in free-decaying curves and RMS accelerations is used as a measure of effectiveness of added viscoelastic dampers. Two different target damping levels, namely, 10% and 15% were pursued by different dimensions but the same kind of viscoelastic material. Experimental results show that significant improvement of structural performance under wind load can be realized with addition of viscoelastic dampers. Also the result of damper property tests show that when viscoelastic dampers are applied to wind-excited buildings or structures, in particular the number of loading cycles and strain range during a severe wind event must be taken into account.
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